CN219125641U

CN219125641U - Furniture lifter

Info

Publication number: CN219125641U
Application number: CN202223601781.9U
Authority: CN
Inventors: 孔凡光
Original assignee: Foshan Lianguan Technology Co ltd
Current assignee: Foshan Lianguan Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-06
Anticipated expiration: 2032-12-29

Abstract

The furniture lifter comprises an outer pipe, an inner pipe movably matched in the outer pipe, and a lifting driver connected with the inner pipe to drive the inner pipe to lift, wherein a plurality of guide pieces are arranged between the inner pipe and the outer pipe; the guide piece comprises an arc-shaped main body with an arc-shaped overlooking section, a fixed convex part fixedly arranged on a concave cambered surface of the arc-shaped main body and a guide convex part fixedly arranged on a convex cambered surface of the arc-shaped main body; the inner tube is provided with a plurality of fixing sockets distributed along the circumferential direction of the inner tube, each fixing socket is inserted with a fixing convex part of a guide piece, and the fixing sockets are matched with the fixing convex parts; the inner wall surface of the outer tube is provided with a plurality of guide grooves distributed along the circumferential direction of the outer tube, and the guide convex part of each guide piece slides in one guide groove in a matching way. The guide piece is arranged between the outer tube and the inner tube in a cushioning way, and the guide piece is in sliding contact with the guide groove on the outer tube through the guide convex part, so that the purposes of reducing friction and noise are achieved.

Description

Furniture lifter

Technical Field

The utility model relates to the technical field of lifting devices of furniture, in particular to a furniture lifter.

Background

In modern life, the desk becomes an indispensable article for people's life and work, and there are a plurality of tables of different heights such as tea table, dining table, tea table, desk and so on in general family and realize different functions, and the limited space in the room is seriously occupied, so a lift table that can freely adjust the desk height and realize a table multi-purpose appears in the market, this lift table generally includes the riser, locates the bottom support at riser bottom, locates the mesa at riser top, and wherein the riser is used for driving the mesa to go up and down, is the important component that the lift table realized the lift function, so the performance of riser is especially important in the lift table.

For example, a pneumatic lifting table disclosed in chinese patent document with publication number CN210842005U comprises a table top and a bottom frame, the table top and the bottom frame are connected by a height adjusting rod, the height adjusting rod comprises a movable inner tube and a fixed outer tube which are fixedly connected with the table top and the bottom frame respectively, the movable inner tube can be in plug-in fit with the fixed outer tube, the height adjusting rod further comprises a supporting rod, the supporting rod is positioned in the inner cavities of the movable inner tube and the fixed outer tube, the fixed end of the supporting rod is fixedly connected with the fixed outer tube, the movable end of the supporting rod is fixedly connected with the movable inner tube, and a triggering member matched with the movable end of the supporting rod is further arranged between the movable inner tube and the table top. According to the technical scheme, the movable inner pipe and the fixed outer pipe are driven to move through the supporting rods, so that the purpose of lifting the table top is achieved. However, the outer wall of the inner tube and the inner wall of the outer tube are in direct sliding contact connection, the sliding contact area between the inner tube and the outer tube is large, so that the friction between the inner tube and the outer tube is also large, and noise is easy to generate in the lifting process; moreover, because the friction is large, the process of mutual sliding and lifting between the inner tube and the outer tube is not smooth, and the clamping phenomenon is easy to occur in the lifting process.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a furniture lifter.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a furniture riser, includes outer tube, movable fit inner tube in the outer tube, connects the lift driver who drives the inner tube and goes up and down, its characterized in that: a plurality of guide pieces are arranged between the inner tube and the outer tube, and the guide pieces are distributed at intervals along the circumferential direction of the inner tube; the guide piece comprises an arc-shaped main body with an arc-shaped overlooking section, a fixed convex part fixedly arranged on a concave cambered surface of the arc-shaped main body and a guide convex part fixedly arranged on a convex cambered surface of the arc-shaped main body; the inner pipe is provided with a plurality of fixing sockets distributed along the circumferential direction of the inner pipe, the fixing sockets are positioned at the lower end of the inner pipe, each fixing socket is inserted with a fixing convex part of a guide piece, and the fixing sockets are matched with the fixing convex parts; the inner wall surface of the outer tube is provided with a plurality of guide grooves distributed along the circumferential direction of the outer tube, and the guide convex part of each guide piece slides in one guide groove in a matching way.

In the utility model, the arc-shaped main body, the fixing convex part and the guiding convex part are of an integrated structure.

In the present utility model, the guide projection and the guide groove each have a trapezoidal shape in plan view cross section, and the guide projection has a width in plan view cross section that gradually decreases in a direction away from the arc-shaped body.

In the utility model, the top of the outer tube is fixed with the orientation piece, the orientation piece is sleeved outside the inner tube, and the inner tube is connected with the orientation piece in a sliding contact manner.

In the utility model, the orientation piece comprises an orientation ring and a plurality of orientation hooks connected to the bottom of the orientation ring, the orientation hooks are distributed at intervals along the circumferential direction of the orientation ring, the upper end of the inner circumferential surface of the outer tube is provided with an installation clamping groove, and the orientation hooks are in snap fit in the installation clamping groove.

In the utility model, a lower mounting seat for closing the lower end of the outer tube is arranged in the outer tube, and the lower end of the lifting driver is hinged on the lower mounting seat.

In the utility model, the bottom of the outer tube is also provided with a lower connecting seat, the lower connecting seat is provided with an inserting groove, the lower end of the outer tube is inserted into the inserting groove, and the lower connecting seat is fixedly connected with the lower mounting seat.

In the utility model, an upper connecting seat is arranged on the top of the inner pipe and is used for connecting a table top; the upper connecting seat is connected with an upper mounting seat positioned on the inner pipe, a trigger mechanism used for pressing the trigger end of the lifting driver is arranged at the upper end of the lifting driver, and the trigger mechanism is hinged on the upper mounting seat.

In the utility model, a plurality of connecting convex strips are convexly arranged on the inner peripheral surface of the inner tube, the connecting convex strips extend along the axial direction of the inner tube, and the connecting convex strips are provided with upper connecting holes for connecting an upper connecting seat.

In the utility model, the lifting driver is a pneumatic rod or an oil hydraulic rod.

The utility model has the beneficial effects that:

1. according to the utility model, the plurality of guide pieces are arranged between the outer pipe and the inner pipe, and are used for guiding the inner pipe in a lifting manner and simultaneously are padded between the outer pipe and the inner pipe, and the guide pieces are in sliding contact with the guide grooves on the outer pipe through the guide convex parts, so that the purposes of reducing friction and noise are achieved;

2. according to the utility model, the directional piece is fixed on the top of the outer tube, the inner tube is connected with the directional piece in a sliding contact manner, and the directional piece is positioned above the guide piece, so that when the guide piece goes deep into the lower end of the outer tube, the upper end of the inner tube is ensured not to deviate by the directional piece, and the directional piece and the guide piece have the double-layer guiding and positioning functions, so that the outer tube and the inner tube are effectively separated, and the lifting stability and smoothness of the inner tube are further improved; meanwhile, the top of the outer tube can be shielded and closed by the orientation piece, so that the attractiveness of the lifter is improved.

Drawings

The utility model is further described below with reference to the drawings and embodiments:

fig. 1 is a perspective view of the present embodiment;

FIG. 2 is an exploded view of the present embodiment;

FIG. 3 is a perspective view of the guide;

FIG. 4 is a schematic view of the structure in which the guide is installed between the inner tube and the outer tube;

FIG. 5 is a schematic view of the internal structure of the present embodiment;

fig. 6 is a schematic view of the lifter applied to a table.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-6, a furniture lifter comprises an outer pipe 1, an inner pipe 2 movably matched in the outer pipe 1, and a lifting driver 3 connected with the inner pipe 2 to drive the inner pipe 2 to lift, wherein the inner parts of the outer pipe 1 and the inner pipe 2 are mutually communicated to form a telescopic cavity, and the lifting driver 3 is arranged in the telescopic cavity; the outer tube 1 and the inner tube 2 are made of aluminum profiles. Further, a plurality of guiding elements 4 are arranged between the inner tube 2 and the outer tube 1, and the guiding elements 4 are distributed at intervals along the circumferential direction of the inner tube 2; the guide piece 4 comprises an arc-shaped main body 41 with an arc-shaped overlooking section, a fixing convex part 42 fixedly arranged on the concave arc surface of the arc-shaped main body 41 and a guide convex part 43 fixedly arranged on the convex arc surface of the arc-shaped main body 41.

Still further, the inner tube 2 is provided with a plurality of fixing sockets 21 distributed along the circumferential direction thereof, the fixing sockets 21 are located at the lower end of the inner tube 2, each fixing socket 21 is inserted with a fixing protrusion 42 of a guiding element 4, the fixing sockets 21 are adapted to the fixing protrusions 42, their cross-sectional shapes are rectangular, and when the fixing protrusions 42 are fitted in the fixing sockets 21, the inner tube 2 can drive the guiding element 4 to slide relative to the outer tube 1, thereby guiding. Further, the inner wall surface of the outer tube 1 is provided with a plurality of guiding grooves 11 distributed along the circumferential direction thereof, the length direction of the guiding grooves 11 extends along the axial direction of the outer tube 1, and the guiding convex part 43 of each guiding piece 4 slides in one guiding groove 11 in a matching way, so that the guiding connection between the guiding piece 4 and the outer tube 1 is realized, and the influence of the gap between the inner tube 2 and the outer tube 1 is eliminated or reduced.

As a preferred embodiment, after the guide protrusion 43 is slidably engaged in the guide groove 11, the arc-shaped main body 41 is disposed away from the inner wall surface of the outer tube 1, so that only the guide protrusion 43 is slidably contacted with the outer tube 1, thereby achieving the purposes of reducing friction and noise; the guide piece 4 is a plastic piece, so that noise is low; the arc-shaped main body 41, the fixing convex part 42 and the guide convex part 43 are of an integrated structure, and the guide piece 4 has high structural stability. Further, the length directions of the arc-shaped main body 41, the fixing convex part 42 and the guiding convex part 43 extend along the guiding direction of the guiding piece 4, so that the fixing convex part 42 has high strength, bears the reaction force generated by the guiding piece 4 in the lifting process, and ensures the stability of the matching of the fixing convex part 42 and the fixing socket 21; at the same time, the guide projection 43 has a larger guide length, and is guided in a better sliding fit with the guide groove 11. In addition, in order to facilitate smooth sliding of the guide 4, lubrication oil may be provided on the guide 4 and the guide groove 11 for lubrication.

In the present embodiment, in order to facilitate the fitting of the guide convex portion 43 into the guide groove 11, the guide convex portion 43 and the guide groove 11 are each trapezoidal in plan cross-sectional shape, and the guide convex portion 43 is gradually reduced in plan cross-sectional width in a direction away from the arc-shaped main body 41.

In this embodiment, the radius of the concave arc surface of the arc-shaped main body 41 is smaller than the radius of the outer peripheral surface of the inner tube 2, so that the two side ends of the arc-shaped main body 41 can be abutted against the outer peripheral surface of the inner tube 2, after the guide piece 4 is matched between the inner tube 2 and the outer tube 1, the inner tube 2 and the outer tube 1 mutually press the guide piece 4, so that the arc-shaped main body 41 can generate tiny deformation and form a reaction force to enable the guide convex part 43 to be tightly and slidably attached to the wall of the guide groove 11, and the guiding quality is ensured. In addition, it is to be specifically noted that, in order to clearly show the difference in size between the concave arc surface radius of the arc-shaped body 41 and the outer peripheral surface radius of the inner tube 2, the concave arc surface radius of the arc-shaped body 41 is set relatively small in the drawing.

As a preferred embodiment, the top of the outer tube 1 is fixed with a directional piece 5, the directional piece 5 is sleeved outside the inner tube 2, the inner tube 2 is connected with the directional piece 5 in a sliding contact manner, the directional piece 5 can guide the inner tube 2, the inner tube 2 is prevented from tilting to one side, and the lifting stability of the inner tube 2 is improved; the orientation piece 5 is made of plastic material, so that noise is low; the orientation piece 5 is positioned above the guide piece 4, so that when the guide piece 4 goes deep into the lower end of the outer tube 1, the orientation piece 5 ensures that the upper end of the inner tube 2 cannot deviate, and the orientation piece 5 and the guide piece 4 have double-layer guiding and positioning functions; meanwhile, the top of the outer tube 1 can be shielded and closed by the orientation piece 5, so that the attractiveness of the lifter is improved. Further, the orientation member 5 includes an orientation ring 51 slidably sleeved outside the inner tube, and a plurality of orientation hooks 52 connected to the bottom of the orientation ring 51, where the orientation hooks 52 are disposed at intervals along the circumference of the orientation ring 51, and an installation slot 12 is disposed at the upper end of the inner circumferential surface of the outer tube 1, and the orientation hooks 52 are snap-fitted in the installation slot 12, so that the orientation member 5 is fixedly installed on the top of the outer tube 1. Still further, the orientation ring 51 and the orientation hook 52 are of an injection molding integrated structure, so that stability between the orientation ring 51 and the orientation hook 52 is improved. In addition, the orientation ring 51 may be provided with a lubricant for lubrication.

As a preferred embodiment, a lower mounting seat 6 for closing the lower end of the outer tube 1 is arranged in the outer tube 1, and the lower end of the lifting driver 3 is hinged on the lower mounting seat 6 by adopting a lower hinge shaft, so that one end of the lifting driver 3 is mounted. The outer tube 1 is fixed with the lower mounting seat 6 by adopting a lower connecting bolt, for example, a lower connecting screw hole is formed in the side face of the lower mounting seat 6, a lower connecting through hole corresponding to the lower connecting screw hole is formed in the side face of the outer tube 1, and the lower connecting bolt penetrates through the lower connecting through hole to be in threaded connection with the lower connecting screw hole, so that the outer tube 1 is fixed with the lower mounting seat 6. Furthermore, the bottom of the outer tube 1 is also provided with a lower connecting seat 7, the lower connecting seat 7 is provided with an inserting groove, the lower end of the outer tube 1 is inserted into the inserting groove, and the lower connecting through hole is hidden in the lower inserting groove, so that the head of the lower connecting bolt is prevented from being exposed outside, and the overall attractiveness of the lifter is improved; the lower connecting seat 7 is fixedly connected with the lower mounting seat 6 by a bottom bolt, for example, one end of the bottom bolt passes through the bottom support 100, and is connected with the lower mounting seat 6 by a threaded connection after the lower connecting seat 7, so that the lower connecting seat 7 is combined with the lower mounting seat 6 and simultaneously is connected with the bottom support 100 of the lifting table.

As a preferred embodiment, the bottom of the inner tube 2 is provided with a mating part 10, the mating part 10 is made of plastic, the mating part 10 comprises a mating ring 101, an inserting ring 102 arranged on the mating ring 101, and a plurality of mating hooks 103 arranged on the inserting ring 102, the inserting assembly of the inserting ring 102 is combined in the inner tube 2, the lower end of the inner tube 2 is provided with a plurality of mating clamping holes, and the mating hooks 103 are in snap fit in the mating clamping holes, so that the mating part 10 is fixed on the inner tube 2, when the lifting driver 3 is completely damaged, the inner tube 2 and a table top cannot be normally supported, after the inner tube 2 descends to the lowest point, the mating part 10 can be contacted with the lower mounting seat 6, a certain buffering effect is achieved, and the lower end of the inner tube 2 is prevented from being deformed by collision.

As a preferred embodiment, an upper connecting seat 8 is arranged on the top of the inner tube 2, the upper connecting seat 8 is fixedly arranged on the inner tube 2 by adopting an upper connecting bolt, and the upper connecting seat 8 is used for connecting the table top 200 by the bolt. Further, the bottom of the upper connecting seat 8 is provided with a positioning ring 81 in a protruding manner, and the top of the inner tube 2 is inserted into the positioning ring 81, so as to position between the inner tube 2 and the upper connecting seat 8. Still further, protruding being equipped with many connection sand grip 22 on the inner peripheral face of inner tube 2, connection sand grip 22 extends along the axial of inner tube 2, be equipped with the last connecting hole 23 that is used for connecting seat 8 on the connection sand grip 22, go up connecting bolt's one end and pass connecting seat 8 threaded connection in last connecting hole 23 to realize last connecting seat 8 fixed mounting in the purpose in outward appearance. Furthermore, the connecting protruding strips 22 and the inner tube 2 are integrally formed, and the connecting protruding strips 22 can enhance the structural strength of the inner tube 2. In addition, the upper connecting seat 8 is connected with an upper mounting seat 9 positioned on the inner tube 2 by adopting a bolt, a trigger mechanism 20 for pressing the trigger end of the lifting driver 3 is arranged at the upper end of the lifting driver 3, and the trigger mechanism 20 is hinged on the upper mounting seat 9.

In a preferred embodiment, the lifting actuator 3 is a gas pressure rod or a hydraulic rod, and in this example, a hydraulic rod is preferred. The triggering mechanism 20 comprises a triggering base 201 and a triggering trigger 202, wherein the lower end of the triggering base 201 is fixedly arranged at the upper end of the lifting driver 3, and the upper end of the triggering base 201 is hinged to the upper mounting seat 9; the middle part of trigger 202 adopts the pivot of triggering to articulate trigger base 201 is last, trigger 202's lower extreme hangs in the trigger end top of lift driver 3, and the upper end is connected with wire rope 300, be equipped with the wire rope 300 and pass the wire rope breach that supplies wire rope 300 to pass on the outer tube 1, wire rope 300 is connected with control switch 400, control switch 400 installs in mesa 200 bottom, can stimulate wire rope 300 through control switch 400, and wire rope 300 drives trigger 202 action simultaneously, makes trigger 202 lower extreme press lift driver 3's trigger end to control lift driver 3. The control switch 400 is a prior art, and reference may be made to chinese patent document with publication number CN210471377U, so that a specific description thereof will not be given.

The foregoing is only a preferred embodiment of the present utility model, and all technical solutions for achieving the object of the present utility model by substantially the same means are included in the scope of the present utility model.

Claims

1. The utility model provides a furniture riser, includes outer tube (1), movable fit inner tube (2) in outer tube (1), connects lift driver (3) that drive inner tube (2) go up and down, its characterized in that: a plurality of guide pieces (4) are arranged between the inner tube (2) and the outer tube (1), and the guide pieces (4) are distributed at intervals along the circumferential direction of the inner tube (2); the guide piece (4) comprises an arc-shaped main body (41) with an arc-shaped overlooking section, a fixed convex part (42) fixedly arranged on a concave arc surface of the arc-shaped main body (41), and a guide convex part (43) fixedly arranged on the convex arc surface of the arc-shaped main body (41); the inner tube (2) is provided with a plurality of fixing sockets (21) distributed along the circumferential direction of the inner tube, the fixing sockets (21) are positioned at the lower end of the inner tube (2), each fixing socket (21) is inserted with a fixing convex part (42) of a guide piece (4), and the fixing sockets (21) are matched with the fixing convex parts (42); the inner wall surface of the outer tube (1) is provided with a plurality of guide grooves (11) distributed along the circumferential direction of the outer tube, and the guide convex part (43) of each guide piece (4) slides in one guide groove (11) in a matching way.

2. A furniture lifter according to claim 1, characterized in that: the arc-shaped main body (41), the fixing convex part (42) and the guiding convex part (43) are of an integrated structure.

3. A furniture lifter according to claim 1, characterized in that: the top cross-sectional shapes of the guide convex part (43) and the guide groove (11) are trapezoidal, and the top cross-sectional width of the guide convex part (43) gradually decreases along the direction away from the arc-shaped main body (41).

4. A furniture lifter according to claim 1, characterized in that: the top of the outer tube (1) is fixedly provided with a directional piece (5), the directional piece (5) is sleeved outside the inner tube (2), and the inner tube (2) is connected with the directional piece (5) in a sliding contact manner.

5. A furniture riser as claimed in claim 4, wherein: the directional piece (5) comprises a directional ring (51) and a plurality of directional hooks (52) connected to the bottom of the directional ring (51), the directional hooks (52) are distributed at intervals along the circumference of the directional ring (51), the upper end of the inner circumferential surface of the outer tube (1) is provided with an installation clamping groove (12), and the directional hooks (52) are in snap fit in the installation clamping groove (12).

6. A furniture lifter according to claim 1, characterized in that: the outer tube (1) is internally provided with a lower mounting seat (6) for sealing the lower end of the outer tube, and the lower end of the lifting driver (3) is hinged on the lower mounting seat (6).

7. A furniture riser as claimed in claim 6, wherein: the bottom of the outer tube (1) is also provided with a lower connecting seat (7), the lower connecting seat (7) is provided with an inserting groove, the lower end of the outer tube (1) is inserted into the inserting groove, and the lower connecting seat (7) is fixedly connected with the lower mounting seat (6).

8. A furniture riser as claimed in claim 7, wherein: an upper connecting seat (8) is arranged on the top of the inner tube (2), and the upper connecting seat (8) is used for connecting a table top (200); the upper connecting seat (8) is connected with an upper mounting seat (9) positioned on the inner pipe (2), a trigger mechanism (20) used for pressing the trigger end of the lifting driver (3) is arranged at the upper end of the lifting driver (3), and the trigger mechanism (20) is hinged on the upper mounting seat (9).

9. A furniture lifter according to claim 8, characterized in that: the inner peripheral surface of the inner tube (2) is convexly provided with a plurality of connecting convex strips (22), the connecting convex strips (22) extend along the axial direction of the inner tube (2), and the connecting convex strips (22) are provided with upper connecting holes (23) for connecting an upper connecting seat (8).

10. A furniture lifter according to any of claims 1-9, characterized in that: the lifting driver (3) is a pneumatic rod or an oil pressure rod.