Patent Description:
The application relates to the technical field of household goods, in particular to a prism apparatus.

At present, wearable glasses on sale change optical paths of vision field of the user through a TIR (Total Internal Reflection) prism with mirror coating. The user wearing the glasses can view the content perpendicular to a visual direction, thus the wearer can view TV, books or mobile phones in a looking up posture or head-up posture.

<CIT> describes an optical path adjustment equipment for protecting backbone and vision comprising a first connecting arm and an optical path regulator. The first connecting arm <NUM> is connected with the optical path regulator for fixing and supporting the optical path regulator, wherein the first connecting arm is the damping hover arm, the optical path regulator is a prism used to adjust the optical path transmission path.

<CIT> discloses a glass mirror structure and fixed bolster thereof, it includes a fixture, a connecting rod, a bend, a cardan shaft, an article clip and a prism.

<CIT> relates to a multi-purpose folding bracket. The height adjustment mode of the rod body is similar to the one in <CIT> that discloses a freestanding portable holding apparatus for a handheld mirror.

<CIT> describes an optical drawing device. <CIT> relates to a rear-view mirror comprising a clamping element adapted to be secured to a conveyance. <CIT> describes a post case rapid cooling system for gas chromatograph and <CIT> an adjustable magnifying apparatus.

However, current mirror coating TIR prisms are all wearable devices, and the vision of the user will change with the movement of the head during use, which results in a sense of dizziness.

The technical problem to be solved by the present application is how to provide a prism apparatus to overcome the problem in the prior art that when a user wears a prism, the vision field of the user changes with the movement of the head, which can easily cause a sense of dizziness to the user.

To solve the above technical problems, present application provides the following technical solutions:
According to an aspect of the present application, the present application provides a prism apparatus, comprising a prism assembly, and a support frame connected to the prism assembly, wherein, the support frame comprises a first end and a second end oppositely arranged, and the second end of the support frame is connected to the prism assembly, the first end of the support frame is used to provide a support point for the support frame, and the second end of the support frame is movable relative to the first end of the support frame to adjust a spatial position of the prism assembly relative to the support point.

Further, the angle adjustment structure comprises:
a ball link rod, having one end movably connected to the rod body, and the other end with a link rod ball embedded in the prism assembly; wherein, the prism assembly is rotatably connected to the link rod ball with self-damping around a spherical surface of the link rod ball.

Further, the rod body comprises at least two link rods connected in sequence, and the two link rods adjacent arranged are connected by a mechanical shaft with self-damping, a spatial position of the prism assembly relative to the support point is adapted for being coarsely adjusted by rotating one of the link rods around the mechanical shaft arranged between the two link rods.

Further, the rod body further comprises a parallel four-link rod support assembly having one end connected to the link rod, and the other end directly connected or indirectly connected through the angle adjustment structure to the prism assembly; and the spatial position of the prism assembly relative to the support point can be accurately adjusted by adjusting the parallel four-link rod support assembly.

The technical solution of the present application has the following advantages:.

In order to illustrate the detailed description of the present disclosure or the technical solutions in the prior art more clearly, the drawings used in the detailed description or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are used to illustrate some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on these drawings without paying any inventive labor.

REFERENCE LABEL: <NUM>, prism assembly; <NUM>, mirror coating TIR (Total Internal Reflection) prism body; <NUM>, first magnet; <NUM>, connecting member; <NUM>, second magnet; <NUM>, clamp; <NUM>, clamping arm; <NUM>, elastic member; <NUM>, support frame <NUM>, rod body; <NUM>, link rod; <NUM>, hollow support rod (telescopic); <NUM>, second locking member; <NUM>, angle adjustment structure; <NUM>, ball link rod; <NUM>, link rod ball; <NUM>, rotary rod; <NUM>, first locking member; <NUM>. parallel four-link rod support assembly; <NUM>. rotating connecting seat; <NUM>. top seat; <NUM>. plastic bend tube; <NUM>. table; <NUM>. support seat; <NUM>. object to be viewed.

The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present application.

It should be noted that, in the description of the present disclosure, orientation or position relationships indicated by terms such as "center", "above", "beneath", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on figure illustrations, and are merely intended to facilitate and simplify description of the present disclosure, rather than indicating or implying that the apparatus or element concerned must be specifically oriented or constructed or operated in a specific manner, and thus shall not be construed as limitations on the present disclosure. In addition, terms such as "first", "second", "third" are intended for the purpose of description, and shall not be interpreted to indicate or imply relative importance.

In the description of the present disclosure, it should be noted that, unless specified and defined otherwise, the terms of "installation", "interconnection" and "connection" shall be understood in a broad sense, for example, a fixed connection, a removable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via intermediate medium, or further, internal communication between two elements, a wireless connection, or a wired connection. Case-by-case interpretation can be made to the above terms in the present disclosure by one with ordinary skill in the art.

Furthermore, technical features involved in the described different implementations of the present disclosure can be combined with each other in the case of no contradictions.

As shown in <FIG>, a prism apparatus comprises a prism assembly <NUM> and a support frame <NUM> connected with each other. One end of the support frame <NUM> passes through a table <NUM> to be fixed thereon via a support seat <NUM>. In other embodiments, the support frame <NUM> can also be directly supported on the ground by the support seat <NUM> or clamped and fixed on the edge of the table. By fixing the prism assembly <NUM> on the support frame <NUM>, the user can view the object <NUM> on the table <NUM> in a direction perpendicular to the visual angle via the prism assembly <NUM>. Compared with the wearable prism in the prior art, it is not required to wear the prism assembly <NUM> on the nose bridge, which reduces the weight on the wearer's nose bridge and relieve the discomfort caused by wearing objects. In addition, when the visual field changes with the movement of the head, it will not cause dizziness to the user. Furthermore, the user can leave the visual field on the table at any time, maintaining the ability of quickly sensing and reacting to the surrounding environment.

Specifically, as shown in <FIG>, in a first embodiment, the support frame <NUM> has a first end and a second end oppositely arranged, and a first end of the support frame <NUM> is fixed to the table <NUM> through the support seat <NUM>, the support seat <NUM> provides a support point for the support frame <NUM> on the table <NUM>, and the second end of the support frame <NUM> is connected to the prism assembly <NUM>, and the second end of the support frame <NUM> is movable relative to the first end of the support frame <NUM> to adjust a spatial position of the prism assembly <NUM> relative to the support point.

During using the prism assembly <NUM>, the first end of the support frame <NUM> is firstly fixed on the table <NUM>, and then a spatial position of the second end of the support frame <NUM> relative to the first end of the support frame <NUM> is adjusted to adjust the distance and height of the prism assembly <NUM> relative to the user, so that the prism assembly <NUM> can be better aligned with the direction of the human eye visual field, and becomes more practical. Moreover, the user can view the content perpendicular to the direction of the visual angle without bending the back spine and neck spine via the prism assembly <NUM>, which reduces pressure on the back spine and neck spine, and contributes to correct the sitting posture or lying posture of human body when the user watches the content perpendicular to the visual angle.

In the first embodiment, the support frame <NUM> comprises rod body <NUM> having an adjustable height, a parallel four-link rod support assembly <NUM>, and an angle adjustment structure <NUM>. One end of the rod body <NUM> is connected to a support seat <NUM>, the parallel four-link rod support assembly <NUM> is connected to the end of the rod body <NUM> away from the support seat <NUM>, the angle adjustment structure <NUM> is connected between the parallel four-link rod support assembly <NUM> and the prism assembly <NUM>, and at least one end is rotatably connected between the parallel four-link rod support assembly <NUM> and the prism assembly <NUM>. In other embodiments, the parallel four-link rod support assembly <NUM> is not required, and the prism assembly <NUM> and the rod body <NUM> are directly connected via the angle adjustment structure <NUM>. In the process of adjusting the distance and height of the prism assembly <NUM> relative to the user, an installation position of the rod body <NUM> on the table <NUM> and the height of the rod body <NUM> is firstly coarsely adjusted; and then, the spatial position of the prism assembly <NUM> relative to the support seat <NUM> is accurately adjusted through the parallel four-link rod support assembly <NUM>, so that the prism assembly <NUM> can be better aligned with the direction of the human eye visual field; finally, an angle adjustment mechanism <NUM> is used to adjust a pitch (orientation) angle of the prism assembly in a vertical direction and a skew angle of the prism assembly in a horizontal direction relative to the rod body. This type of adjustable structure of the support frame <NUM> greatly improves the flexibility and practicality of the prism assembly <NUM>; and since a slight angle adjustment can be performed to the parallel four-link rod support assembly <NUM>, it contributes to adjust the prism assembly <NUM> more accurately to an appropriate viewing position.

In the first embodiment, the rod body <NUM> comprises two link rods <NUM> that are rotatably connected, two link rods <NUM> adjacently arranged are connected by a mechanical shaft with self-damping, and a link rod <NUM> located at a lower end is rotatably connected on the support seat <NUM>, a link rod <NUM> located at an upper end can rotate and hover arbitrarily in a three-dimensional space around a mechanical shaft between the two link rods <NUM>. By rotating the link rod <NUM> located at the upper end, coarse adjustment of the spatial position of the prism assembly <NUM> relative to the support seat <NUM> can be achieved, which has the advantages of simple structure and convenient operation. In other embodiments, there are three or more of the link rods <NUM> connected by a mechanical shaft with self-damping, and rotation may be achieved between the two link rods <NUM> along a vertical axis or a horizontal axis. The link rod <NUM> can also adopt other telescopic adjustment manners such as a manner using a telescopic sleeve rod.

In other embodiments, the two link rods <NUM> can be connected in any other manners that allows the angle between the link rods to be changed while the two link rods can stay at different angles and provides stable support for the prism body. The connection manner includes, but not limited to, various damping shafts, spring structures, cylinders, hydraulic and friction sleeves, etc..

In the first embodiment, one end of the parallel four-link rod support assembly <NUM> is movably connected to one end of the link rod <NUM> away from the support seat <NUM> by the rotary connection seat <NUM>, and the other end of the parallel four-link rod support assembly <NUM> is connected to a top seat <NUM>, and the angle adjusting structure <NUM> is connected to the top seat <NUM>. The parallel four-link support assembly <NUM> can also rotate around the vertical axis, thereby further improving the adjustability of the support frame <NUM>.

Specifically, the parallel four-link support assembly <NUM> comprises two link rods of the same length which are parallel to each other, and a telescopic mechanism connected between a link rod located at the upper end and a rotary connection seat <NUM>, and two ends of each of the two links rods are respectively rotatably connected to the rotary connection seat <NUM> and the top seat <NUM>, the telescopic mechanism provides support for the parallel four-link rod support assembly <NUM>. Connecting lines of the four hinge points of the two link rods connected on the rotary connection seat <NUM> and the top seat <NUM> on the same plane form a parallelogram structure, viewing from a side surface of the parallel four-link rod support assembly <NUM>. The connecting line between the two hinge points on the rotary connection seat <NUM> is regarded as a first side of the parallelogram structure, and the connecting line between the two hinge points on the top seat <NUM> is regarded as a second side of the parallelogram structure. The first side and the second side are oppositely arranged, and the two link rods are respectively regarded as the other two sides including a third and a fourth of the parallelogram structure, which are oppositely arranged.

The link rod can be rotated around the hinge point of the link rod connected to the rotary connection seat <NUM>, and the top seat <NUM> can be moved relative to the rotary connection seat <NUM> through the parallelogram structure, thereby adjusting the orientation of the top seat <NUM> relative to the rotary connection seat <NUM>, and compared with the adjustment method that two link rods <NUM> rotates around a self-damping connecting shaft to adjust the position of the top seat <NUM>, this type of adjustment is beneficial to adjust the orientation more accurately. At the same time, the telescopic mechanism can provide support for the parallelogram structure so that the top seat <NUM> can hover at any position. Two link rods <NUM> with self-damping mechanical shafts and the parallel four-link rod support assembly <NUM> of the support frame <NUM> can be used cooperatively to adjust the position of the prism assembly <NUM>, so that angle adjustment of less degree can be performed and a position adjustment structure of the prism assembly <NUM> has higher degree of accuracy, therefore, the prism assembly <NUM> can be more accurately aligned with the direction of the human eye field, and the user can see more clearly. Specifically, the telescopic mechanism can adopt a spring assembly, one end of the spring assembly is installed on the rotary connection seat <NUM>, and the other end is installed on one of the link rods. When the parallel four-link rod support assembly <NUM> rotates at different angles, rotation angles of the spring assembly are different at the different angles, and the elastic force value also changes accordingly. The parallel four-link rod support assembly <NUM> can be in a force balance state at any angle, and the top seat <NUM> can hover at any position relative to the rotatory connection seat <NUM>. Furthermore, the spring assembly may be a gas spring assembly or a compression spring assembly. In other embodiments, the telescopic mechanism can also be replaced by a linear push rod.

In the first embodiment, the angle adjustment structure <NUM> comprises a ball link rod <NUM>, one end of the ball link rod <NUM> is movably connected to the top seat <NUM>, and the other end of the ball link rod <NUM> is provided with a link rod ball <NUM> embedded in the prism assembly <NUM>. The prism assembly <NUM> is connected to the link rod ball <NUM> around the ball surface of the link rod ball <NUM> in the form of self-damping rotation, and this type of connection allows to adjust angle of the prism assembly <NUM> relative to the ball link rod <NUM> arbitrarily and provides high degree of adjustability. In other embodiments, a self-damping rotation connection can also be applied in the end of the ball link rod <NUM> connected to the top seat <NUM>.

As shown in <FIG> of a second embodiment, which is an embodiment not according to the claimed subject-matter, the second embodiment is different from the first embodiment in that the rod body <NUM> is directly supported on the ground by the support seat <NUM>, and the rod body <NUM> comprises two hollow support rods <NUM> sleeved in sequence and the second locking member <NUM> for locking two hollow support rods <NUM> adjacently arranged. The second locking member <NUM> can be a locking ring, a ring clamp or a locking screw. In other embodiments, there can be three or more hollow support rods <NUM>; a hollow support rod <NUM> connected to the support seat <NUM> may be fixed on the support seat <NUM> or may be rotatably connected on the support seat <NUM>.

The angle adjusting structure <NUM> comprises a rotary rod <NUM> that is rotatably connected to an upper end of the hollow support rod <NUM>, and a first locking member <NUM> for locking the rotary rod <NUM> to the rod body <NUM>; the prism assembly <NUM> is slidably mounted on the rotary rod <NUM> along the axis direction of the rotary rod <NUM>. A locking screw that is threaded with the hollow support rod <NUM> can be used in the first locking member <NUM>. The pitch (orientation) angle of the rotary rod <NUM> and the prism assembly <NUM> relative to the table <NUM> in a vertical direction and a skew angle of the rotary rod <NUM> and the prism assembly <NUM> relative to the table <NUM> in a horizontal direction can be adjusted by the following steps: loosening the first locking member <NUM>, rotating the rotary rod <NUM> and driving the prism assembly <NUM> to rotate, and then locking the rotary rod <NUM> on the hollow support rod <NUM> with the first locking member <NUM>.

Specifically, the prism assembly <NUM> comprises a prism body <NUM> and a connecting member <NUM> slidably disposed on the rotary rod <NUM>. A first magnet <NUM> is fixed on an upper end of the prism body <NUM>, and a second magnet <NUM> is fixed on un lower end of the connecting member <NUM>. The prism body <NUM> is fixed on the connecting member <NUM> through magnetic attraction of the second magnet <NUM> and the first magnet <NUM>. The connecting member <NUM> is also movably connected with a third locking member for locking the connecting member <NUM> on the rotary rod <NUM>. Specifically, the third locking member can be a locking screw. In other embodiments, the prism assembly <NUM> can also be connected to the support frame <NUM> by mechanical snap fixation, adhesive fixation, and the like. One end of the support frame <NUM> connected to the prism assembly <NUM> can be wholly or partially embedded in the prism assembly <NUM> or clamp the prism assembly <NUM>, and the prism assembly <NUM> can also be partially or wholly embedded in one end of the support frame <NUM>.

As shown in <FIG> of a third embodiment, which is an embodiment not according to the claimed subject-matter, the third embodiment differ from the first embodiment in that the support frame <NUM> is made of a bendable plastic bend tube <NUM>, and specifically, the plastic bend tube <NUM> is a gooseneck tube or serpentine tube. In the embodiment, one end of the plastic bend tube <NUM> can be connected to the table <NUM> through the support seat <NUM>, the prism assembly <NUM> is rotatably connected to the other end of the plastic bend tube <NUM>; the end of the plastic bend tube <NUM> connected to the prism assembly <NUM> can be rotated around the other end of the plastic bend tube <NUM>, thereby adjusting the spatial position of the prism assembly <NUM> relative to the support seat <NUM>.

In other embodiments, the support frame or the rod body can be fixed in any manner that makes the rod body stably supported, which includes, but not limited to, fixing to the ground by using weight, fixing by clamp, fixing by screw or tenon and mortise structure, fixing by negative pressure suction cup, fixing by magnetic suction, and fixing by adhesive bonding, etc..

In the embodiment, the prism assembly <NUM> comprises a prism body <NUM> and a clamp <NUM>; the clamp <NUM> is rotatably connected to the second end of the plastic bend tube <NUM>, and comprises two clamping arms <NUM> oppositely arranged and elastically connected, and an elastic member <NUM> arranged between the two clamping arms <NUM> and driving between the clamping arms <NUM> to cooperate with the elastic member <NUM> to clamp the prism body <NUM>. The elastic member <NUM> can be formed with one or more springs.

In other embodiments not according to the claimed subject-matter, the plastic bend tube <NUM> can also be directly disposed on the table <NUM> through a counterweight fixedly connected with the plastic bend tube <NUM>, or the plastic bend tube <NUM> can be combined with the retractable rod <NUM> to function as the support frame <NUM> of the prism assembly <NUM>. The prism assembly <NUM> can also be fixed on the support frame <NUM> that can be a metallic hose that is not only bendable but also rotatable around the axis thereof; The spatial position of the prism assembly <NUM> relative to the support point and the pitch (orientation) angle of the prism assembly <NUM> in a vertical direction and a skew angle of the prism assembly <NUM> in a horizontal direction relative to the table <NUM> can be simultaneously adjusted by rotating the metallic hose, which results in that the prism apparatus of the present application has a simple structure and can be easily adjusted.

Claim 1:
A prism apparatus, comprising
a prism assembly (<NUM>), and
a support frame (<NUM>) connected to the prism assembly (<NUM>),
wherein,
the support frame (<NUM>) comprises a first end and a second end oppositely arranged, and the second end of the support frame (<NUM>) is connected to the prism assembly (<NUM>), the first end of the support frame (<NUM>) is used to provide a support point for the support frame (<NUM>), and the second end of the support frame (<NUM>) is movable relative to the first end of the support frame (<NUM>) to adjust a spatial position of the prism assembly (<NUM>) relative to the support point;
wherein the support frame (<NUM>) comprises,
a rod body (<NUM>), having an adjustable height;
wherein the rod body (<NUM>) comprises at least two link rods (<NUM>) connected in sequence, and the two link rods (<NUM>) adjacently arranged are connected by a mechanical shaft with self-damping; wherein, a spatial position of the prism assembly (<NUM>) relative to the support point is adapted for being coarsely adjusted by rotating one of the link rods (<NUM>) around the mechanical shaft arranged between the two link rods (<NUM>);
an angle adjustment structure (<NUM>), connected between the rod body (<NUM>) and the prism assembly (<NUM>), and having at least one end rotatably connected to the rod body (<NUM>) and/or the prism assembly (<NUM>) to adjust a relative angle between the prism assembly (<NUM>) and the rod body (<NUM>);
characterized in that the angle adjustment structure (<NUM>) comprises,
a ball link rod (<NUM>), having one end movably connected to the rod body (<NUM>), and the other end with a link rod ball (<NUM>) embedded in the prism assembly (<NUM>);
wherein, the prism assembly (<NUM>) is rotatably connected to the link rod ball (<NUM>) with self-damping around a spherical surface of the link rod ball (<NUM>);
wherein, the angle adjustment mechanism (<NUM>) is used to adjust a pitch orientation angle of the prism assembly in a vertical direction and a skew angle of the prism assembly in a horizontal direction relative to the rod body.