Quick assembly and disassembly mechanism

A quick assembly and disassembly mechanism includes a nut seat and a slide block which is movably coupled to the nut seat. The nut seat includes at least two cantilever lock blocks therein. The inner wall of each lock block has threads thereon. The inner diameter encircled by the lock blocks matches with a bolt of a faucet. In normal state, the nut seat can be moved freely on the bolt. When the nut seat is moved to a counter top to compress the slide block, the slide block will push the lock blocks to mesh with the bolt tightly, so that the faucet can be mounted and dismounted quickly.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a quick assembly and disassembly mechanism, and more particularly to a quick assembly and disassembly mechanism for the faucet and its parts of a bathroom sink and a kitchen sink.

2. Description of the Prior Art

When a faucet is installed at one side of a sink, a nut is used to mesh with the bolt at the lower end of the faucet so that the faucet can be installed on the counter top. The faucet of the kitchen and the bathroom is installed close to the wall. Subject to the shape of the kitchen sink and the bathroom sink, the space under the counter top to lock the faucet is very small. According to the traditional operation to lock the nut on the bolt, the nut must be rotated from the lower end of the bolt. The length of the bolt depends on the thickness of the counter top, namely, it decides the route of the nut to be locked. Thus, to lock or unlock the nut takes time and energy.

In order to install the faucet quickly, a quick assembly structure for faucets is developed on the market. This structure achieves quick installation through a one-way engagement way. However, when dismounted, the nut must be dismounted from the highest position to the distal of the bolt. It also takes time and energy. Because the space under the counter top is narrow, it is difficult to operate. The faucet cannot be dismounted quickly. Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems.

SUMMARY OF THE INVENTION

The primary object of the present invention is to provide a quick assembly and disassembly mechanism for installing a faucet and its related parts quickly and conveniently.

According to a first aspect of the present invention, the quick assembly and disassembly mechanism is movably fitted on a bolt at a lower portion of a faucet. The quick assembly and disassembly mechanism comprises a nut seat and a slide block which is movably coupled to the nut seat. The nut seat has an insertion room at a central portion thereof. The upper end of the insertion room is provided with a plurality of spaced cantilever lock blocks which are disposed vertically around the circumference of the insertion room. The inner wall of each lock block has threads thereon. The inner diameter encircled by the lock blocks matches with the bolt at the lower portion of the faucet. An insertion seat is formed between the lock blocks and the insertion room. Each lock block has a connecting surface at an upper end thereof. The connecting surface has an insertion hole for the slide block to be inserted into the insertion seat. The outer wall of the lower portion of each lock block is formed with an inclined guide surface which is expanded outwardly from top to bottom. The inner wall of the middle portion of the insertion seat of the nut seat is provided with a plurality of ledges. The slide block is an insertion ring. An annular surface of the slide block is provided with a plurality of claws corresponding in number to the lock blocks. Each claw has an engaging hook on the outer wall of the lower end thereof to cooperate with the corresponding ledge. The inner wall of each claw is formed with an inclined push surface which is expanded outward from top to bottom.

Preferably, the outer wall of the nut seat is formed with spaced vertical pull portions.

According to a second aspect of the present invention, the quick assembly and disassembly mechanism is movably fitted on a bolt at a lower portion of a faucet. The quick assembly and disassembly mechanism comprises a nut seat and a slide block which is movably coupled to the nut seat. The nut seat has an insertion room at a central portion thereof. The lower end of the insertion room is provided with a plurality of spaced cantilever lock blocks which are disposed upwardly and vertically around the circumference of the insertion room. The inner wall of each lock block has threads thereon. The inner diameter encircled by the lock blocks matches with the bolt at the lower portion of the faucet; an insertion seat formed between the lock blocks and the insertion room. The outer wall of each lock block is formed with an inclined guide surface which is expanded outwardly from top to bottom. The inner wall close to the middle portion of the insertion seat of the nut seat is provided with a plurality of ledges. The slide block is an insertion ring. The slide block has engaging legs at a lower end thereof to cooperate with the ledges. The inner wall close to the upper portion of the slide block is formed with an inclined push surface which is expanded outward.

Preferably, the outer wall of the nut seat is formed with spaced vertical pull portions.

Preferably, the outer wall of the slide block is formed with recesses corresponding to the ledges, and the engaging legs are disposed at the lower ends of the recesses.

Preferably, the outer wall of the nut seat is formed with spaced vertical pull portions.

Accordingly, the present invention comprises a nut seat provided with at least two cantilever lock blocks. In normal state, the nut seat can be moved freely on the bolt. It is not necessary to rotate the nut seat from the bottom end of the bolt. The nut seat cooperates with a slide block which is movably coupled to the nut seat. When the nut seat is moved to a counter top to compress the slide block, the inclined push surface of the slide block will push the inclined guide surface of the lock blocks to mesh with the bolt tightly, so that the faucet can be mounted and dismounted quickly. The assembly and disassembly of the faucet and the related parts is more convenient and quick.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

As shown inFIG. 1toFIG. 7, the present invention discloses a quick assembly and disassembly mechanism for installing the related parts of the faucet of a kitchen sink or a bathroom sink. The assembly and disassembly mechanism is movably fitted on the bolt at the lower portion of the faucet to fix the faucet on the kitchen sink or the bathroom sink or on the counter top B. The mechanism comprises a nut seat1and a slide block2which is movably coupled to the nut seat1.

The outer wall of the nut seat1is formed with spaced vertical pull portions10for the nut seat1to be rotated by applying a force. The nut seat1has an insertion room11at a central portion thereof. The upper end or the lower end of the insertion room11is provided with at least two spaced cantilever lock blocks12which are disposed vertically around the circumference of the insertion room11. The inner wall of each lock block12has threads120thereon. The inner diameter encircled by the lock blocks12closely matches up the bolt A at the lower end of the faucet. An insertion seat13is formed between the lock blocks12and the insertion room11. The outer wall of each lock block12is formed with an inclined guide surface121which is expanded outwardly from top to bottom. The cantilever lock blocks12of the nut seat1have resilience, so the distal ends can be deformed when applied with a force and can return to the initial state when the force is released.

The slide block2is an insertion ring and movably coupled to the insertion seat13of the nut seat1. The slide block2has inclined push surfaces corresponding to the inclined guide surfaces121of the lock blocks12. When the slide block2is fully inserted into the insertion seat13, the inclined push surfaces of the slide block2will push the lock blocks12to math with the bolt A of the faucet.

FIG. 1toFIG. 3shows a first embodiment of the quick assembly and disassembly the present invention. Wherein, the lower end of the insertion room11of the nut seat1is provided with a plurality spaced cantilever lock blocks12which are disposed vertically around the circumference of the insertion room11from top to bottom. Each lock block12has a connecting surface14at an upper end thereof. The connecting surface14has an insertion hole15for insertion of each claw22of the slide block2to be inserted into the insertion seat13. The connecting surface14is formed with a depression seat16relative to the top end of the nut seat1. The height of the depression seat16is slightly larger than the thickness of an annular surface21of the slide block2, such that the upper surface of the slide block2and the top surface of the nut seat1are on the same plane to cooperate with the counter top B conveniently. The outer wall of the lower portion of each lock block12is formed with an inclined guide surface121which is expanded outwardly from top to bottom. The inner wall of the middle portion of the insertion seat13of the nut seat1is provided with a plurality of ledges131to prevent disengagement.

In this embodiment, an annular surface21of the slide block2is provided with a plurality of claws22corresponding to the lock blocks12. Each claw22has an engaging hook221on the outer wall of the lower end thereof to cooperate with the corresponding ledge131. The inner wall of each claw22is formed with an inclined push surface222which is expanded outward from top to bottom.

To assemble the present invention, the claws22of the slide block2are respectively inserted into the insertion seat13from the corresponding insertion holes15at the upper end of the nut seat1and moved downward for the engaging hook221of each claw22to be engaged under the corresponding ledge131, so that the slide block2and the nut seat1are assembled together. That is to say, the engaging hooks221of the slide block2and the ledges131of the nut seat1constitute an anti-disengagement device for the related demand of transportation. By the confinement of the inclined guide surface121of each lock block12, in normal state, the inclined push surface222of the slide block2is located above the inclined guide surface121of the lock block12, namely, the upper end of the slide block2extends out of the upper end of the nut seat1.

As shown inFIG. 2andFIG. 3, when the present invention is used for installation of a faucet, the nut seat1having the slide block2is fitted on the bolt A from the lower end of the bolt A. Because each lock block12is designed to be a cantilever, the lock blocks12have a concession space initially and cannot be threaded to the bolt A, so that the nut seat1can be directly moved up to the position of the counter top B quickly. By applying an upward force to the nut seat1, the counter top B has a downward force to the lock blocks2for the lock blocks2to be moved downward relative to the nut seat1, in the meanwhile, the inclined push surface222of each claw22pushes the inclined guide surface121of each lock block12for each lock block12to be pushed toward the insertion room11, such that the lock blocks12are threadedly connected with the bolt A for the faucet to be installed on the counter top B quickly. The connection of the faucet and the counter top B will be more stable and firm when the lock blocks12are further pushed downward to engage with tightly.

To disassemble the faucet, the nut seat1is rotated reversely to move downward relative to the bolt A, such that the counter top B doesn't hold against the slide block2and the slide block2doesn't push the lock blocks12. Thus, the nut seat1having the slide block2is pulled to disengage from the bolt A quickly to achieve a quickly disassembly function.

Accordingly, the inclined push surface222of the slide block2and the inclined guide surface121of each lock block12of the nut seat1constitute a guide device. After the slide block2and the nut seat1are assembled, the slide block2is in contact with the nut seat1. Before installation, the slide block2is in a free state. After installation, the action force contact with the counter top B is applied to the nut seat1through the slide block2, and the guide device makes the lock blocks12being deformed inward to engage with the bolt A tightly. When the action force contact with the counter top B is released, the parts restore to the initial state.

FIG. 4toFIG. 6shows a second embodiment of the quick assembly and disassembly the present invention. Wherein, the insertion room11of the nut seat1is provided with a plurality spaced cantilever lock blocks12which are disposed upwardly and vertically around the circumference of the insertion room11. The outer wall of the upper portion of each lock block12is formed with an inclined guide surface121which is expanded outwardly from top to bottom. The inner wall close to the middle portion of the insertion seat13of the nut seat1is provided with a plurality of ledges131to prevent disengagement.

In this embodiment, the slide block2is an insertion ring. The outer wall of the slide block2is formed with recesses23corresponding to the ledges131. The slide block2has engaging legs24at the lower ends of the recesses23to cooperate with the ledges131. The inner wall close to the upper portion of the slide block2is formed with an inclined push surface25which is expanded outward.

To assemble the present invention, the recesses23of the slide block2correspond in position to the ledges131, and then the slide block2is inserted into the insertion seat13from the top end of the nut seat1and moved downward for the engaging legs24to be engaged under the ledges131, so that the slide block2and the nut seat1are assembled together. The engaging legs24of the slide block2and the ledges131of the nut seat1constitute an anti-disengagement device for the related demand of transportation. By the confinement of the inclined guide surface121of each lock block12, in normal state, the inclined push surface25of the slide block2is located above the inclined guide surface121of the lock block12, namely, the upper end of the slide block2extends out of the upper end of the nut seat1.

As shown inFIG. 5andFIG. 6, when the present invention is used for installation of a faucet, the nut seat1having the slide block2is fitted on the bolt A from the lower end of the bolt A. Because each lock block12is designed to be a cantilever, the lock blocks12have a concession space initially and cannot be threaded to the bolt A, so that the nut seat1can be directly moved up to the position of the counter top B quickly. By applying an upward force to the nut seat1, the counter top B has a downward force to the lock blocks2for the lock blocks2to be moved downward relative to the nut seat1, in the meanwhile, the inclined push surface25of the slide block2pushes the inclined guide surface121of each lock block12for each lock block12to be pushed toward the insertion room11, such that the lock blocks12are threadedly connected with the bolt A for the faucet to be installed on the counter top B quickly.

To disassemble the faucet, the nut seat1is rotated reversely to move downward relative to the bolt A, such that the counter top B doesn't hold against the slide block2and the slide block2doesn't push the lock blocks12. Thus, the nut seat1having the slide block2is pulled to disengage from the bolt A quickly to achieve a quickly disassembly function.

Similarly, the inclined push surface25of the slide block2and the inclined guide surface121of each lock block12of the nut seat1constitute a guide device. After the slide block2and the nut seat1are assembled, the slide block2is in contact with the nut seat1. Before installation, the slide block2is in a free state. After installation, the action force contact with the counter top B is applied to the nut seat1through the slide block2, and the guide device makes the lock blocks12being deformed inward to engage with the bolt A tightly. When the action force contact with the counter top B is released, the parts restore to the initial state.

The guide device of the present invention is not limited to the inclined push surface and the inclined guide surface. It can be an inclined groove, a slide groove, a guide rail, a guide groove or the like.

To sum up, the nut seat1of the present invention has the cantilever lock blocks12. In normal state, the nut seat1can be moved up and down on the bolt A. It is not necessary to rotate the nut seat1from the bottom end of the bolt A. When the nut seat1is moved to the counter top B to compress the slide block2, the slide block2will push the lock blocks12to mesh with the bolt A tightly, so that the faucet can be mounted and dismounted quickly. The assembly and disassembly of the faucet and the related parts is more convenient and quick.