Novel lifting table with motor self-locking structure

Abstract

The novel lifting table with the motor self-locking structure comprises two stand columns and a table plate, sliding grooves are formed in the top ends of the two stand columns, sliding plates are connected into the sliding grooves in a sliding mode, lifting legs are fixedly arranged at the top ends of the sliding plates, the lifting legs are fixed to the bottom end of the table plate, grooves are formed in the outer walls of the two stand columns, and the lifting legs are fixed to the bottom end of the table plate. A supporting block is arranged in the groove, a motor is fixedly arranged at the bottom end of the supporting block, a first cavity is formed in the supporting block, an output shaft of the motor penetrates through the top end of the supporting block, a worm is fixedly arranged on the output shaft, a worm gear is meshed with one side of the worm, the worm gear and the worm are both located in the first cavity, a sleeve is fixedly arranged in the worm gear, and a protective shell is arranged on one side of the sleeve. The lifting table with the self-locking function is reasonable in structure, and the lifting table has the advantage of being good in self-locking performance through matching of the worm gear, the worm and the torsional spring.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting tables, in particular to a novel lifting table with a motor self-locking structure. Background Art

[0002] The existing stand-sit dual-purpose office lifting table solves the problem of office workers sitting for a long time, and can realize the alternating use of standing and sitting. Although the existing lifting table indicates its maximum load-bearing weight, users often place objects that exceed the maximum load of the lifting table when using it, which leads to the inability of the existing thread self-locking to effectively achieve the self-locking effect, and finally causes the lifting table to move downward due to excessive load, thus failing to reach the height required by office workers. To solve the above problems, a solution is proposed below. Utility Model Content

[0003] The purpose of the utility model is to provide a new lifting table with a motor self-locking structure to solve the problems raised in the above background technology.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] The lifting table has two bosses, each of which is connected to the base by a spring, and the bosses are connected by a spring to the base, the two bosses having two bosses respectively connected to the base and a nut. The two bosses have respective bosses respectively connected to the base and a nut. The two bosses have respective bosses respectively connected to the base and a nut.

[0006] Preferably, the driving mechanism includes a bevel gear 1 fixed on the rotating shaft, a bevel gear 2 is meshed below the bevel gear 1, a threaded rod is fixed on the bevel gear 2, the threaded rod passes through the support block and is threadedly connected to the sliding plate, a chamber 2 is opened inside the lifting leg, and the top end of the threaded rod is located inside the chamber 2.

[0007] Preferably, a circular groove is provided on one side of the support block, the protective shell is rotatably connected to the circular groove, an internal threaded hole is provided on one end of the rotating shaft close to the protective shell, and a screw matching the internal threaded hole is provided on the protective shell.

[0008] Preferably, the support block consists of a support shell 1 and a support shell 2, a plurality of bolts 1 are provided on the support shell 1, and the support shell 1 and the support shell 2 are fixed to each other by the plurality of bolts 1.

[0009] Preferably, a support frame is fixedly provided on an outer wall of the support shell, the support frame is in contact with the outer wall of the column and a plurality of bolts are provided on the support frame, and the support frame and the column are fixed by the plurality of bolts.

[0010] The beneficial effects of the utility model are as follows: through the cooperation of the motor, worm gear, worm, rotating shaft, bevel gear one, bevel gear two and threaded rod, the sliding plate, lifting leg and table top can be driven to move up and down respectively; through the setting of the worm gear and worm, the self-locking effect can be achieved based on friction; with the contraction of the torsion spring, the self-locking performance of the lifting table can be further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an embodiment;

[0012] Figure 2 for Figure 1 A magnified view of part A;

[0013] Figure 3 It is an exploded view of the interior of the column of the embodiment;

[0014] Figure 4 for Figure 3 Enlarged view of part B.

[0015] Figure numerals: 1. column; 11. slide groove; 12. lifting leg; 14. sliding plate; 2. support block; 21. support shell one; 22. support shell two; 23. bolt one; 3. motor; 31. chamber one; 32. worm; 33. worm wheel; 34. sleeve; 35. rotating shaft; 4. circular groove; 41. protective shell; 42. screw; 43. torsion spring; 5. support frame; 51. bolt two; 6. driving mechanism; 61. bevel gear one; 62. bevel gear two; 63. threaded rod; 64. chamber two; 7. groove. DETAILED DESCRIPTION

[0016] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. The same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom" and "top", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0017] like Figures 1 to 4As shown, a new type of lifting table with a motor self-locking structure includes two columns 1 and a table top (not shown in the figure). A sliding groove 11 is opened at the top of the two columns 1. A sliding plate 14 is slidably connected inside the sliding groove 11. A lifting leg 12 is fixed on the top of the sliding plate 14, and the lifting leg 12 is fixed to the bottom end of the table top. When the sliding plate 14 slides in the sliding groove 11, it can drive the lifting leg 12 and the table top to move together.

[0018] The outer walls of the two columns 1 are each provided with a groove 7 connected to the slide slot 11, a support block 2 is arranged inside the groove 7, a motor 3 is fixedly provided at the bottom end of the support block 2, a chamber 31 is provided inside the support block 2, an output shaft of the motor 3 passes through the top end of the support block 2 and a worm 32 is fixedly provided on the output shaft, a worm wheel 33 is meshed with one side of the worm 32, and the worm wheel 33 and the worm 32 are both located inside the chamber 1 31; by starting the motor 3, the worm 32 can be driven to rotate inside the chamber first, and when the worm 32 rotates, the worm wheel 33 can be driven to rotate together.

[0019] A sleeve 34 is fixedly provided inside the worm gear 33, and a rotating shaft 35 is provided inside the sleeve 34. When the worm gear 33 rotates, the sleeve 34 and the rotating shaft 35 can be driven to rotate together respectively; a protective shell 41 is provided on one side of the sleeve 34, and a torsion spring 43 is provided on the protective shell 41. A circular groove 4 is provided on one side of the support block 2, and the protective shell 41 is rotatably connected to the circular groove 4. An internal threaded hole is provided at one end of the rotating shaft 35 close to the protective shell 41, and a screw 42 matching the internal threaded hole is provided on the protective shell 41. The protective shell 41 can be fixed to the rotating shaft 35 through the cooperation of the internal threaded hole and the bolt. When the rotating shaft 35 rotates, the protective shell 41 and the torsion spring 43 can be driven to rotate together.

[0020] A driving mechanism 6 for driving the lifting leg 12 to rise and fall is provided on the rotating shaft 35, and the driving mechanism 6 includes a bevel gear 1 61 fixedly arranged on the rotating shaft 35, a bevel gear 2 62 is meshed below the bevel gear 1 61, a threaded rod 63 is fixedly arranged on the bevel gear 2 62, the threaded rod 63 passes through the support block 2 and is threadedly connected to the sliding plate 14, a chamber 2 64 is provided inside the lifting leg 12, and the top of the threaded rod 63 is located inside the chamber 2 64; when the rotating shaft 35 rotates, the bevel gear 1 61 can be driven to rotate, and the bevel gear 2 62 can be driven to rotate through the rotation of the bevel gear 1 61, and when the bevel gear 2 62 rotates, the threaded rod 63 can be driven to rotate, and the sliding plate 14 can be driven to slide inside the slide groove 11 through the rotation of the threaded rod 63, and when the sliding plate 14 slides, the lifting leg 12 and the table top can be driven to move together respectively.

[0021] The support block 2 is composed of a support shell 1 21 and a support shell 22. A plurality of bolts 23 are arranged on the support shell 1 21. The support shell 1 21 and the support shell 2 22 are fixed to each other by the plurality of bolts 23. The arrangement of the plurality of bolts 23 facilitates the disassembly and assembly of the support shell 1 21 and the support shell 2 22. The support shell 1 21 is first dismantled, and then the support shell 2 22 can be taken out.

[0022] A support frame 5 is fixedly provided on the outer wall of the support shell 21, the support frame 5 is in conflict with the outer wall of the column 1 and a plurality of bolts 51 are provided on the support frame 5, the support frame 5 and the column 1 are fixed by the plurality of bolts 51; the provision of the plurality of bolts 51 makes it convenient for operators to disassemble and assemble the support frame 5 and the support shell 21.

[0023] By starting the motor 3, the worm 32 can be driven to rotate first, and when the worm 32 rotates, the worm wheel 33, the rotating shaft 35 and the bevel gear 1 61 can be driven to rotate respectively, and the rotation of the bevel gear 1 61 can drive the bevel gear 2 62 and the threaded rod 63 to rotate respectively, and when the threaded rod 63 rotates, the sliding plate 14, the lifting leg 12 and the table top can be driven to move up and down respectively, wherein the cooperation between the worm wheel 33 and the worm 32 can realize the self-locking effect based on the friction force, and through the setting of the torsion spring 43, when the rotating shaft 35 and the protective shell 41 are reversed, the torsion spring 43 will be subjected to an inward force, so that the torsion spring 43 can be contracted and get closer and closer to the protective shell 41, which can further enhance the self-locking performance of the lifting table, and finally avoid the phenomenon that the lifting table moves downward due to excessive load.

[0024] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel lifting table with a motor self-locking structure, comprising two upright posts (1) and a table top, characterized in that: The tops of the two uprights (1) are provided with a slide groove (11), the inside of the slide groove (11) is slidably connected with a sliding plate (14), the top of the sliding plate (14) is fixed with a lifting leg (12), the lifting leg (12) is fixed with the bottom of the table top, the outer walls of the two uprights (1) are provided with a groove (7) connected with the slide groove (11), a support block (2) is arranged inside the groove (7), a motor (3) is fixed at the bottom of the support block (2), a chamber (31) is provided inside the support block (2), the output of the motor (3) The shaft passes through the top of the support block (2) and a worm (32) is fixedly arranged on the output shaft. A worm wheel (33) is meshed on one side of the worm (32). Both the worm wheel (33) and the worm (32) are located inside the first chamber (31). A sleeve (34) is fixedly arranged inside the worm wheel (33). A protective shell (41) is arranged on one side of the sleeve (34). A torsion spring (43) is arranged on the protective shell (41). A rotating shaft (35) is arranged inside the sleeve (34). A driving mechanism (6) for driving the lifting leg (12) to move up and down is arranged on the rotating shaft (35).

2. A novel lifting table with a motor self-locking structure according to claim 1, characterized in that: The driving mechanism (6) comprises a bevel gear 1 (61) fixedly mounted on the rotating shaft (35), a bevel gear 2 (62) meshing below the bevel gear 1 (61), a threaded rod (63) fixedly mounted on the bevel gear 2 (62), the threaded rod (63) passing through the support block (2) and being threadedly connected to the sliding plate (14), a chamber 2 (64) being provided inside the lifting leg (12), and a top end of the threaded rod (63) being located inside the chamber 2 (64).

3. The novel lifting table with a motor self-locking structure according to claim 1 is characterized in that: A circular groove (4) is provided on one side of the support block (2), the protective shell (41) is rotatably connected to the circular groove (4), an internal threaded hole is provided on one end of the rotating shaft (35) close to the protective shell (41), and a screw (42) matching the internal threaded hole is provided on the protective shell (41).

4. The novel lifting table with a motor self-locking structure according to claim 1 is characterized in that: The support block (2) is composed of a support shell 1 (21) and a support shell 2 (22); a plurality of bolts 1 (23) are arranged on the support shell 1 (21); and the support shell 1 (21) and the support shell 2 (22) are fixed to each other by the plurality of bolts 1 (23).

5. The novel lifting table with a motor self-locking structure according to claim 4 is characterized in that: A support frame (5) is fixedly arranged on the outer wall of the support shell (21), the support frame (5) is in contact with the outer wall of the column (1) and a plurality of bolts (51) are arranged on the support frame (5), and the support frame (5) and the column (1) are fixed by the plurality of bolts (51).

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