Caulking gun handle and caulking gun

A caulking gun handle and a caulking gun are provided. A caulking amount adjusting assembly is mounted on a movable handle of the caulking gun; the caulking amount adjusting assembly comprises a driving shaft and a driving shaft positioning member; portions at two sides of a mounting groove are each formed as a handle mounting portion; a driving protrusion and first and second positioning recesses are provided on a peripheral surface of the driving shaft, the driving shaft can slide left and right with respect to the two handle mounting portions, so that in a first workstation, an end portion of the driving shaft positioning member located in the driving shaft mounting hole is engaged in the first positioning recess, and in a second workstation, the end portion of the driving shaft positioning member located in the driving shaft mounting hole is engaged in the second positioning recess.

CROSS-REFERENCE TO RELATED APPLICATION

The present disclosure claims the priority to the Chinese patent application with the filing No. 2021111888350, filed on Oct. 12, 2021 with the Chinese Patent Office, and entitled “Caulking Gun Handle and Caulking Gun”, the contents of which are incorporated by reference herein in entirety.

TECHNICAL FIELD

The present disclosure relates to the technical field of caulking tools, in particular to a caulking gun handle and a caulking gun.

BACKGROUND ART

In the prior art, when a caulking gun is used for caulking, the amount of caulking discharged from the caulk cartridge cannot be controlled, and the propelling ratio of the caulking gun cannot be flexibly adjusted according to different viscosities of the caulks, thus leading to a too large caulking amount in some work scenes, which on the one hand will cause great interference to the process, and needs additionally performing cleaning work to excess caulk discharged on the to-be-caulked surface, and on the other hand, also causes a problem of serious caulk waste. In some work scenes, the caulking amount at a single time is too small, resulting in that the caulking needs to be performed multiple times to cover the to-be-caulked surface, and then causing a problem that the caulking efficiency is low and further the construction efficiency is affected.

SUMMARY

An embodiment of the present disclosure provides a caulking gun handle, including a top connector, a locking sheet, a caulking gun ejector rod, a driving block, a driving spring, a fixed handle, and a movable handle; the locking sheet is obliquely connected to a rear end of the top connector by a spring, the caulking gun ejector rod penetrates through the locking sheet and the top connector; the driving block is slidably connected to the caulking gun ejector rod; the driving spring is sleeved over the caulking gun ejector rod, one end of the driving spring abuts against a front end face of the driving block, and the other end of the driving spring is configured to abut against a barrel of the caulking gun; an upper end of the fixed handle is fixedly connected to a lower end of the top connector; an upper end of the movable handle is pivoted inside the top connector, and the movable handle is located in front of the fixed handle; the driving block is hinged with the upper end of the movable handle or a lower end of the driving block abuts against a front side of the upper end of the movable handle.

In the above, a caulking amount adjusting assembly is mounted on the movable handle;

the caulking amount adjusting assembly includes a driving shaft and a driving shaft positioning member;

the upper end of the movable handle is provided with a mounting groove, parts at two sides of the mounting groove are each formed as a handle mounting portion, and the two handle mounting portions are provided at left and right sides of the top connector respectively; the top connector is provided with a first pivot rotating shaft mounting hole that passes through the top connector in a left-right direction, the two handle mounting portions are each provided with a driving shaft mounting hole that passes through the handle mounting portions in the left-right direction, the driving shaft sequentially penetrates through the driving shaft mounting hole in one of the handle mounting portions, the first pivot rotating shaft mounting hole, and the driving shaft mounting hole in the other one of the handle mounting portions, two ends of the driving shaft are each provided with an anti-release structure, and the driving shaft rotates in synchronization with the two handle mounting portions;

a portion of the driving shaft is provided with a driving protrusion, a first positioning recess, and a second positioning recess, with the portion located at a peripheral surface of the driving shaft and between the two handle mounting portions; a positioning member mounting hole is provided on at least one of the handle mounting portions, the positioning member mounting hole is in communication with the driving shaft mounting hole, the driving shaft positioning member is mounted in the positioning member mounting hole, and one end of the driving shaft positioning member extends into the driving shaft mounting hole; and

the driving shaft is capable of sliding left and right with respect to the two handle mounting portions, so that in a first workstation, an end portion of the driving shaft positioning member located in the driving shaft mounting hole is engaged in the first positioning recess, and in a second workstation, the end portion of the driving shaft positioning member located in the driving shaft mounting hole is engaged in the second positioning recess; with the driving shaft being in the first workstation, one end of the driving protrusion away from the driving shaft is capable of pressing the driving block forward while the driving shaft rotates forward; and with the driving shaft being in the second workstation, the driving protrusion avoids the driving block.

In one or more embodiment, the driving shaft positioning member is a ball point screw (bead screw), a ball point end of the ball point screw extends into the driving shaft mounting hole, and the positioning member mounting hole is a threaded hole.

In one or more embodiment, the driving shaft includes a main shaft and a shaft sleeve, the main shaft includes a first shaft segment and a second shaft segment integrally connected with each other, and an outer circle diameter of a radial section of the first shaft segment is greater than an outer circle diameter of a radial section of the second shaft segment;

the first positioning recess and the second positioning recess are provided on a peripheral surface of the first shaft segment; the driving protrusion is cam-shaped, both the driving protrusion and the shaft sleeve are sleeved outside the second shaft segment, one side surface of the driving protrusion abuts against an end face of one end of the first shaft segment facing the second shaft segment, and the other side surface of the driving protrusion abuts against an end face of one end of the shaft sleeve facing the first shaft segment; and

one end of the first shaft segment away from the second shaft segment is inserted in the driving shaft mounting hole of one of the handle mounting portions, one end of the second shaft segment away from the first shaft segment and one end of the shaft sleeve away from the first shaft segment are both inserted in the driving shaft mounting hole of the other one of the handle mounting portions, and the anti-release structure is capable of preventing the driving shaft and the shaft sleeve from disengaging from the corresponding driving shaft mounting holes.

In one or more embodiment, the peripheral surface of the driving shaft is provided with a plane, and the first positioning recess, the second positioning recess, and the driving protrusion are all provided in the plane; and a hole wall of the driving shaft mounting hole fits to and is matched with the peripheral surface of the driving shaft.

In one or more embodiment, the driving protrusion is fixedly connected or integrally molded to a peripheral surface of one end of the driving shaft, and the first positioning recess and the second positioning recess are both provided at the driving protrusion; and

the driving protrusion is inserted into the driving shaft mounting hole of one of the handle mounting portions, and an end of the driving shaft away from the driving protrusion is inserted into the driving shaft mounting hole of the other one of the handle mounting portions; the anti-release structure is capable of preventing the driving shaft and the driving protrusion from disengaging from the corresponding driving shaft mounting holes.

In one or more embodiment, an end face of one end of the driving protrusion away from the driving shaft is a circular arc surface; and/or one side of one of the handle mounting portions facing the other one of the handle mounting portions is provided with an avoidance groove for avoiding the driving shaft positioning member.

In one or more embodiment, the anti-release structure includes a screw and a baffle; the baffle is sleeved over the screw, and one end of the screw is inserted and threaded into a threaded hole provided in an end surface of the driving shaft.

In one or more embodiment, a pivot rotating shaft is further connected between the two handle mounting portions, the pivot rotating shaft penetrates through the first pivot rotating shaft mounting hole in the top connector, one end of the pivot rotating shaft is rotatably connected to one of the handle mounting portions, and the other end of the pivot rotating shaft is rotatably connected to the other one of the handle mounting portions.

In one or more embodiment, the two handle mounting portions are each provided with a second pivot rotating shaft mounting hole;

the pivot rotating shaft includes a head portion and a rod portion, and the rod portion of the pivot rotating shaft is blocked and locked by an end stopper after sequentially penetrating through the second pivot rotating shaft mounting hole in one of the handle mounting portions, the first pivot rotating shaft mounting hole in the top connector, and the second pivot rotating shaft mounting hole in the other one of the handle mounting portions; alternatively, two ends of the pivot rotating shaft are each blocked and locked by an end stopper after the pivot rotating shaft sequentially penetrates through the second pivot rotating shaft mounting hole in one of the handle mounting portions, the first pivot rotating shaft mounting hole in the top connector, and the second pivot rotating shaft mounting hole in the other one of the handle mounting portions.

In one or more embodiment, the end stopper is an elastic retaining ring.

In one or more embodiment, the elastic retaining ring is provided with a central opening, and a first slit, a hole, and a second slit in communication with the central opening, wherein a portion of the elastic retaining ring close to the first slit extends upwards to the second slit so as to form the hole.

An embodiment of the present disclosure further provides a caulking gun, including a barrel and the caulking gun handle according to any one of the preceding embodiments.

As the caulking gun provided in the second aspect of the embodiment of the present disclosure includes the caulking gun handle provided in the first aspect, the caulking gun provided in the second aspect of the embodiment of the present disclosure can achieve all the beneficial effects that can be achieved by the caulking gun handle provided in the first aspect.

DETAILED DESCRIPTION OF EMBODIMENTS

In order to make objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present disclosure, and apparently, some but not all embodiments of the present disclosure are described. Generally, components in the embodiments of the present disclosure described and shown in the accompanying drawings herein may be arranged and designed in different configurations.

Therefore, the detailed description below of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of protection of the present disclosure, but merely represents chosen embodiments of the present disclosure. Based on the embodiments in the present disclosure, all of other embodiments, obtained by those ordinarily skilled in the art without any creative effort, shall fall within the scope of protection of the present disclosure.

It should be noted that similar reference signs and letters represent similar items in the following accompanying drawings, therefore, once a certain item is defined in one accompanying drawing, it is not needed to be further defined or explained in subsequent accompanying drawings.

In the description of the present disclosure, it should be noted that orientation or positional relationships indicated by terms such as “front”, “back”, “left”, “right”, “inner”, and “outer”, are based on orientation or positional relationships as shown in the drawings, or orientation or positional relationships of a product of the present disclosure when being conventionally placed in use, merely for facilitating describing the present disclosure and simplifying the description, rather than indicating or suggesting that related devices or elements have to be in the specific orientation or configured and operated in a specific orientation, therefore, they should not be construed as limitation to the present disclosure. Besides, terms such as “first” and “second” are merely used for distinctive description, but should not be construed as indicating or implying importance in the relativity.

In the description of the present disclosure, it should be further illustrated that, unless otherwise clearly specified and defined, the terms “provide”, “install”, and “connect” should be understood in a broad sense, for example, a connection may be a fixed connection, a detachable connection, or an integrated connection; it may be a mechanical connection or an electrical connection; it may be direct joining or indirect joining through an intermediate media, and it also may be inner communication between two elements. For a person ordinarily skilled in the art, specific meanings of the above-mentioned terms in the present disclosure could be understood according to specific circumstances.

Some embodiments of the present disclosure are described in detail below in combination with the drawings. The following embodiments and features in the embodiments may be combined with each other without conflict.

The caulking gun handle and the caulking gun provided in the present disclosure alleviate the technical problems in the prior art that when the caulking gun is used for caulking, the amount of caulk discharged from the caulk cartridge cannot be controlled, and the caulking cannot be flexibly performed in different strengths according to different caulk viscosities.

The caulking gun is a caulking tool, and as shown inFIG.1andFIG.2, the caulking gun used at present includes a caulking gun ejector rod1, a caulking gun handle2, and a barrel3connected to a front end of the caulking gun handle2. The caulking gun handle2includes a fixed handle21, a movable handle22, and a top connector23having a penetration mounting hole231for allowing the caulking gun ejector rod1to penetrate therethrough and be mounted; an upper end of the fixed handle21is fixedly connected to a lower end of the top connector23, wherein the fixed handle21may be fixedly connected to the lower end of the top connector23through a screw, a rivet or other fasteners, or may be in an integrally molded structure with the top connector23; an upper end of the movable handle22is pivoted inside the top connector23, and the movable handle22is located in front of the fixed handle21; the caulking gun handle2further includes a locking sheet24obliquely hinged to a rear end of the top connector23by a spring, the locking sheet24is provided with a through hole (penetration hole), the caulking gun ejector rod1penetrates through the penetration mounting hole231in the top connector23and the through hole in the locking sheet24, and the caulking gun ejector rod1has a rear end located outside the top connector23, and a front end extending into inside of the barrel3; the caulking gun ejector rod1is slidably provided with a driving block4; the driving block4is hinged with the upper end of the movable handle22, or a lower end of the driving block4abuts against a front side of the upper end of the movable handle22, a driving spring5is further sleeved over the caulking gun ejector rod1, and the driving spring5has one end abutting against the driving block4, and the other end abutting against the barrel3, wherein a manner in which one end of the driving spring5close to the barrel3abuts against the barrel3includes but is not limited to that a rear end of the barrel3is provided with a sleeve-shaped connecting portion having a peripheral surface provided with a thread, a front end of the top connector23is sleeved over and threaded to the outside of the connecting portion, the caulking gun ejector rod1penetrates through the connecting portion, and one end of the driving spring5close to the barrel3extends into the inside of the connecting portion and abuts against a rear end face of the barrel3; and the caulking gun ejector rod1is locked in the through hole of the locking sheet24under the effect of the spring between the locking sheet24and the top connector23.

In specific use, the locking sheet24is pressed so that the locking sheet24extends along a vertical direction to release the caulking gun ejector rod1, the caulking gun ejector rod1is pulled to enable the front end of the caulking gun ejector rod1to move backward and then release the locking sheet24, the caulk cartridge is placed inside the barrel3with a caulk outlet facing forward, the movable handle22is pulled backward, at this time, the upper end of the movable handle22can enable the driving block4to incline so that the driving block4locks the caulking gun ejector rod1, meanwhile, the upper end of the movable handle22pushes the driving block4to move forward so as to drive the caulking gun ejector rod1to move forward against the friction force between the through hole of the locking sheet24and the caulking gun ejector rod1, the front end of the caulking gun ejector rod1is enabled to be squeezed and placed in a rear end of the caulk cartridge inside the barrel3, to make the caulk discharged from the caulk cartridge; during the forward movement, the driving block4will compress the driving spring5, and the driving spring5allows the driving block4and the movable handle22to always have a movement trend of returning, so that the driving block4restores and returns to a normal position when the movable handle22is released, which operations are repeated to performing the caulking.

In the prior art, when the caulking gun is used for caulking, the amount of the caulk discharged from the caulk cartridge cannot be controlled, thus leading to a too large caulking amount in some work scenes, which on the one hand will cause great interference to the process, and needs extra cleaning work for excess caulk discharged on the to-be-caulked surface, and on the other hand, also causes a problem of serious caulk waste. In some work scenes, the caulking amount at a single time is too small, and the caulking needs to be performed multiple times to cover the to-be-caulked surface, then causing a problem that the caulking efficiency is low and further the construction efficiency is affected. Moreover, the propelling ratio of the caulking gun in the prior art cannot be adjusted according to different caulk viscosities, then in some work scenes with high caulk viscosity, as the propelling ratio of the caulking gun cannot be decreased by adjustment, the caulking amount will be too large, extra cleaning work needs to be performed on excess caulk discharged on the to-be-caulked surface, thus causing great interference to the process, and meanwhile also causing serious caulk waste; and in some work scenes with low caulk viscosity, as the propelling ratio of the caulking gun cannot be increased by adjustment, the caulking amount at a single time is too small, the caulking needs to be performed multiple times to cover the to-be-caulked surface, then the caulking efficiency is low and further the construction efficiency is affected. Compared with the caulking guns in the prior art, the present disclosure provides an improved caulking gun, i.e. a caulking gun mounted with a caulking gun handle according to the present disclosure, as shown inFIG.3toFIG.12.

As shown inFIG.3toFIG.12, the caulking gun in the present disclosure includes a caulking gun handle2and a barrel3connected to a front end of the caulking gun handle2, the caulking gun handle2includes a caulking gun ejector rod1, a fixed handle21, a movable handle22, a top connector23, a locking sheet24, a driving block4, and a driving spring5, wherein the locking sheet24is obliquely hinged to a rear end of the top connector23by a spring, and the caulking gun ejector rod1penetrates through the locking sheet24and the top connector23; the driving block4is slidably connected to the caulking gun ejector rod1; the driving spring5is sleeved over the caulking gun ejector rod1, the driving spring5has one end abutting against a front end face of the driving block4, and the other end configured to abut against the barrel3of the caulking gun; an upper end of the fixed handle21is fixedly connected to a lower end of the top connector23; an upper end of the movable handle22is pivoted in the top connector23, and the movable handle22is located in front of the fixed handle21; the driving block4is hinged with the upper end of the movable handle22or a lower end of the driving block4abuts against a front side of the upper end of the movable handle22.

In the structure of the caulking gun handle2according to the present disclosure, a caulking amount adjusting assembly100is mounted on the movable handle22, and the caulking amount and the propelling ratio of the caulking gun may be adjusted by the caulking amount adjusting assembly100.

Referring particularly toFIG.6toFIG.9, specifically, the caulking amount adjusting assembly100includes a driving shaft110and a driving shaft positioning member120; the upper end of the movable handle22is provided with a mounting groove225, and parts at two sides of the mounting groove are each formed as a handle mounting portion226, and the two handle mounting portions226are provided on both left and right sides of the top connector23, respectively; the top connector23is provided with a first pivot rotating shaft mounting hole232that passes through the top connector23in a left-right direction, the two handle mounting portions226are respectively provided with a driving shaft mounting hole221that passes through the handle mounting portions226in the left-right direction, the driving shaft110sequentially penetrates through the driving shaft mounting hole221in one handle mounting portion226, the first pivot rotating shaft mounting hole232, and the driving shaft mounting hole221in the other handle mounting portion226, two ends of the driving shaft110are both provided with an anti-release structure300, and the driving shaft110rotates in synchronization with the two handle mounting portions226. A driving protrusion1101, a first positioning recess1102, and a second positioning recess1103are provided on a peripheral surface of the driving shaft110and between the two handle mounting portions226; at least one of the handle mounting portions226is provided with a positioning member mounting hole222, the positioning member mounting hole222is in communication with the driving shaft mounting hole221, the driving shaft positioning member120is mounted in the positioning member mounting hole222, and one end of the driving shaft positioning member120extends into the driving shaft mounting hole221. The driving shaft110can slide left and right with respect to the two handle mounting portions, so that in the first workstation, an end portion of the driving shaft positioning member120located in the driving shaft mounting hole221is engaged in the first positioning recess1102, and in a second workstation, the end portion of the driving shaft positioning member120located in the driving shaft mounting hole221is engaged in the second positioning recess1103; with the driving shaft110being in the first workstation, one end of the driving protrusion1101away from the driving shaft110can press the driving block4forward while the driving shaft110rotates forward; and with the driving shaft110being in the second workstation, the driving protrusion1101avoids the driving block4.

The structure of the caulking gun handle provided in the present embodiment has two working conditions:

The first working condition is applicable to cases where a large caulking amount is required or the caulk viscosity is low. As shown inFIG.6, the operator pushes the driving shaft110to enable the driving shaft110to be located in the first workstation in the above, that is, the end portion of the driving shaft positioning member120located in the driving shaft mounting hole221is engaged in the first positioning recess1102, at this time, the end of the driving protrusion1101away from the driving shaft110can press the driving block4forward while the driving shaft110rotates forward, and when the driving shaft110is in contact with the driving block4, the propelling ratio is larger, and the caulking amount is larger, which is suitable for applying the caulk with relatively low viscosity;

The second working condition is applicable to cases where a small caulking amount is required or the caulk viscosity is high. As shown inFIG.7, the operator pushes the driving shaft110reversely to enable the driving shaft110to be located in the second workstation in the above, that is, the end portion of the driving shaft positioning member120located in the driving shaft mounting hole221is engaged in the second positioning recess1103, at this time, the driving protrusion1101avoids the driving block4, and when the driving shaft110is in contact with the driving block4, the propelling ratio is smaller and the caulking amount is smaller, which is suitable for applying the caulk with relatively high viscosity.

In the present embodiment, by mounting the caulking amount adjusting assembly100on the movable handle22of the caulking gun, the function of changing gear position of the propelling ratio is realized, and the caulking feed amount of the caulking gun is changed, thus the actual caulking amount of the caulking gun may be adjusted according to actual needs, ensuring the construction process while avoiding extra cleaning work, having the effect of saving caulk, and being more beneficial to quick construction.

In some optional examples of the present embodiment, the driving shaft positioning member120is a ball point screw, a ball point end of the ball point screw extends into the driving shaft mounting hole221, the positioning member mounting hole222is a threaded hole, the ball point screw is threaded in the positioning member mounting hole222, and when the driving shaft110is pushed left and right, the ball point end may be quickly embedded into or exits the first positioning recess1102or the second positioning recess1103under the effect of pushing force.

In some optional examples of the present embodiment, as a caulking gun handle, as shown inFIG.10, in conjunction withFIG.9, the driving shaft110includes a main shaft111and a shaft sleeve112, the main shaft111includes a first shaft segment1111and a second shaft segment1112integrally connected with each other, and an outer circle diameter of a radial section of the first shaft segment1111is greater than an outer circle diameter of a radial section of the second shaft segment1112. In the above, the first positioning recess1102and the second positioning recess1103are provided on a peripheral surface of the first shaft segment1111; the driving protrusion1101is cam-shaped, both the driving protrusion1101and the shaft sleeve112are sleeved outside the second shaft segment1112, one side surface of the driving protrusion1101abuts against an end face of one end of the first shaft segment1111facing the second shaft segment1112, the other side surface of the driving protrusion1101abuts against an end face of one end of the shaft sleeve112facing the first shaft segment1111. One end of the first shaft segment1111away from the second shaft segment1112is inserted in the driving shaft mounting hole221of one handle mounting portion, one end of the second shaft segment1112away from the first shaft segment1111and one end of the shaft sleeve112away from the first shaft segment1111are both inserted in the driving shaft mounting hole221of the other handle mounting portion, and the anti-release structure300can prevent the driving shaft110and the shaft sleeve112from disengaging from the corresponding driving shaft mounting holes221.

With continued reference toFIG.9andFIG.10, in these optional embodiments, preferably, but not limited to, the peripheral surface of the driving shaft110is provided with a plane, and the first positioning recess1102, the second positioning recess1103, and the driving protrusion1101are all provided at the foregoing plane; a hole wall of the driving shaft mounting hole221fits to and is matched with the peripheral surface of the driving shaft110, so as to realize synchronous rotation of the driving shaft110with the two handle mounting portions of the movable handle22.

In some other optional examples of the present embodiment, as another caulking gun handle, referring toFIG.13andFIG.14, the driving protrusion1101is fixedly connected or integrally molded to a peripheral surface of one end of the driving shaft110, and the first positioning recess1102and the second positioning recess1103are both provided at the driving protrusion1101; the driving protrusion1101is inserted into the driving shaft mounting hole221of one handle mounting portion226, and an end of the driving shaft110away from the driving protrusion1101is inserted into the driving shaft mounting hole221of the other handle mounting portion226; and the anti-release structure300can prevent the driving shaft110and the driving protrusion1101from disengaging from the corresponding driving shaft mounting holes221.

Referring toFIG.9, in combination withFIG.6toFIG.8, in the two kinds of caulking gun handles above provided in the present embodiment, preferably, but not limited to, as shown inFIG.9andFIG.10, an end face of one end of the driving protrusion1101away from the driving shaft110is a circular arc surface, so as to avoid scratching the driving block4during contact between the driving protrusion1101and the driving block4, further improving the service life of the caulking gun handle. And/or, preferably, but not limited to, one side of one handle mounting portion facing the other handle mounting portion is provided with an avoidance groove223for avoiding the driving shaft positioning member120, so that in the second working condition in the foregoing, the driving shaft positioning member120is located in the avoidance groove223, further the spacing between the two handle mounting portions of the movable handle22may be reduced, and the structural compactness of the caulking gun handle may be improved. In the above, “and/or” means that the two structures described in the above, namely, “an end face of one end of the driving protrusion1101away from the driving shaft110is a circular arc surface” and that “one side of one handle mounting portion facing the other handle mounting portion is provided with an avoidance groove223for avoiding the driving shaft positioning member120”, are provided simultaneously or alternatively.

Referring toFIG.6toFIG.9, in some optional examples of the present embodiment, the above anti-release structures300provided at two ends of the driving shaft110each include a screw310and a baffle320; the baffle320is sleeved over the screw310, and one end of the screw310is inserted and threaded into a threaded hole provided in an end surface of the driving shaft110.

Referring toFIG.8,FIG.9,FIG.11, andFIG.12, in some optional examples of the present embodiment, a pivot rotating shaft400is further connected between the two handle mounting portions of the movable handle22, the pivot rotating shaft400penetrates through the first pivot rotating shaft mounting hole232in the top connector23, one end of the pivot rotating shaft400is rotatably connected to one handle mounting portion226, and the other end of the pivot rotating shaft400is rotatably connected to the other handle mounting portion.

In more detail, as shown inFIG.11, the two handle mounting portions226are each provided with a second pivot rotating shaft mounting hole224, wherein the pivot rotating shaft400includes a head portion401and a rod portion402, and the rod portion402of the pivot rotating shaft400is blocked and locked by an end stopper410after sequentially penetrating through the second pivot rotating shaft mounting hole224in one handle mounting portion226, the first pivot rotating shaft mounting hole232in the top connector23, and the second pivot rotating shaft mounting hole224in the other handle mounting portion226; alternatively, two ends of the pivot rotating shaft400are respectively blocked and locked by an end stopper410, after the pivot rotating shaft400sequentially penetrates through the second pivot rotating shaft mounting hole224in one handle mounting portion226, the first pivot rotating shaft mounting hole232in the top connector23, and the second pivot rotating shaft mounting hole224in the other handle mounting portion226. In the present embodiment, the structure of the end stopper410may be, but is not limited to, what is shown inFIG.12, an elastic retaining ring, and the elastic retaining ring is provided with a first slit412in communication with a central opening411, and a portion of the elastic retaining ring close to the first slit412extends upwards to a second slit414so as to form a hole413, such that the elastic retaining ring can be conveniently opened. An end clamping groove is provided on a peripheral surface of an end portion of the pivot rotating shaft400. In use, the elastic retaining ring is opened by using the first and second slits and the hole413, and the elastic retaining ring is mounted in the end clamping groove of the pivot rotating shaft400in a sleeving way, realizing the function of locking the end portion of the pivot rotating shaft400.

Certainly, in other optional examples of the present embodiment, the end stopper410further may adopt other structural forms, including but not limited to the configuration with reference to the anti-release structure300described in the preceding.

The present embodiment provides a caulking gun. Referring toFIG.3toFIG.7, the caulking gun includes a barrel3and the caulking gun handle provided in any optional example in Embodiment 1.

As the caulking gun provided in the present embodiment includes the caulking gun handle described in Embodiment 1, the caulking gun provided in the present embodiment can achieve all the beneficial effects that can be achieved by the caulking gun handle in Embodiment 1, and the specific structure and achievable effects thereof may be obtained with reference to each optional example in Embodiment 1.

Finally, it should be noted that various embodiments in the present description are described in a progressive manner, each embodiment focuses on the differences from other embodiments, and the same or similar parts between various embodiments may refer to each other; various embodiments above in the present description are merely used for illustrating the technical solutions of the present disclosure, rather than limiting the present disclosure; although the detailed description is made to the present disclosure with reference to various preceding embodiments, those ordinarily skilled in the art should understand that they still could modify the technical solutions recited in various preceding embodiments, or make equivalent substitutions to some or all of the technical features therein; and these modifications or substitutions do not make the corresponding technical solutions essentially depart from the scope of the technical solutions of various embodiments of the present disclosure.