Shaft sleeve for tray lock

Abstract

The utility model discloses a tray lock shaft sleeve which comprises a bearing assembly, a shaft sleeve body is arranged in the bearing assembly, a plurality of movable clamping pieces are arranged on the inner wall of the shaft sleeve body, a rotating structure is arranged on the shaft sleeve body, and a pressing guide structure is arranged between the movable clamping pieces and the rotating structure. A locking structure is arranged between the rotating structure and the shaft sleeve, the movable clamping piece and the shaft sleeve are made of PI materials, a connecting structure capable of being in interference fit with a shaft is arranged in the shaft sleeve, the connecting stability of the shaft and the shaft sleeve is better in the connecting process, the shaft and the shaft sleeve are rapidly loosened by loosening the interference fit in the disassembling process, and the disassembling efficiency is improved. Meanwhile, the shaft sleeve is made of PI materials, and abrasion resistance is better.

Description

Technical Field

[0001] The utility model relates to a shaft sleeve, in particular to a shaft sleeve used for pallet locks. Background Art

[0002] The sleeve in the bearing is used to connect the shaft, and the shaft is usually connected to the sleeve by interference fit, which makes installation and disassembly very difficult. At the same time, the existing sleeve has poor wear resistance. In view of the above problems, a sleeve structure needs to be designed to solve the above problems.

[0003] Therefore, the existing shaft sleeve needs to be further improved. Utility Model Content

[0004] The purpose of the utility model is to provide a locking sleeve for a pallet, which can quickly lock and unlock the sleeve and the shaft. The sleeve is made of PI material and has better wear resistance.

[0005] In order to achieve the above purpose, the present invention adopts the following scheme:

[0006] A pallet lock sleeve comprises a bearing assembly, a sleeve is arranged in the bearing assembly, a plurality of movable clamping parts are arranged on the inner wall of the sleeve, a rotating structure is provided on the sleeve, a downward pressure guide structure is provided between the movable clamping part and the rotating structure, a locking structure is provided between the rotating structure and the sleeve, and the movable clamping part and the sleeve are made of PI material.

[0007] Furthermore, the bearing assembly includes a bearing seat, a bearing pump body is arranged in the bearing seat, and the shaft sleeve is installed in the bearing pump body.

[0008] Furthermore, the plurality of movable clamping members are evenly distributed around the circumference of the shaft sleeve axis.

[0009] Furthermore, the movable clamping member includes a pushing shaft arranged on the shaft sleeve, and an arc-shaped clamping piece is provided at the inner end of the pushing shaft.

[0010] Furthermore, the surface of the arc-shaped clamping piece is provided with rubber material.

[0011] Furthermore, the surface of the arc-shaped clamping piece is provided with an anti-slip structure.

[0012] Furthermore, the rotating structure includes an annular groove provided on the circumferential outer wall of the sleeve, and an adjusting ring is rotatably provided in the annular groove.

[0013] Furthermore, the downward pressure guide structure includes an inner ring groove provided on the adjustment ring, a driving guide groove is provided on the side wall of the inner ring groove, a driving shaft is provided on the push shaft, and the driving shaft is movably inserted into a corresponding one of the driving guide grooves.

[0014] Furthermore, the driving guide groove includes a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove is arranged on the outside of the second arc-shaped groove, and the diameter of the second arc-shaped groove is smaller than the diameter of the first arc-shaped groove.

[0015] Furthermore, the locking structure includes a threaded hole provided on the sleeve, and a locking screw is provided on the adjusting ring. When the arc-shaped clamping piece moves inwardly and clamps, the threaded hole and the locking screw are aligned and matched.

[0016] In summary, the present invention has the following beneficial effects compared to the prior art:

[0017] The utility model solves the shortcomings of the existing shaft sleeve structure. Through the structural setting of the utility model, it has the following advantages: a connection structure that can perform interference fit with the shaft is provided in the shaft sleeve, and the connection stability of the shaft and the shaft sleeve is better during connection. When disassembling, the interference fit is loosened and the shaft and the shaft sleeve are quickly loosened. At the same time, the shaft sleeve is made of PI material, which has better wear resistance, simple structure, and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the shaft sleeve of the present utility model;

[0020] Figure 3 This is one of the internal structure diagrams of the present utility model;

[0021] Figure 4 This is the second schematic diagram of the internal structure of the present utility model;

[0022] Figure 5 It is a cross-sectional view of the present utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5The utility model provides a shaft sleeve for a pallet lock, comprising a bearing assembly 1, a shaft sleeve 2 being arranged in the bearing assembly 1, a plurality of movable clamping members 3 being arranged on the inner wall of the shaft sleeve 2, a rotating structure 4 being arranged on the shaft sleeve 2, a downward pressing guide structure 5 being arranged between the movable clamping member 3 and the rotating structure 4, a locking structure 6 being arranged between the rotating structure 4 and the shaft sleeve 2, and the movable clamping member 3 and the shaft sleeve 2 being made of PI material;

[0025] During operation, the rotating structure 4 is rotated, and the rotation process of the rotating structure 4 drives the downward pressing guide structure 5 to work, and the downward pressing guide structure 5 drives the corresponding movable clamping member 3 to open, and the shaft is inserted into the shaft sleeve 2. At this time, space is reserved for the shaft to penetrate;

[0026] After the shaft is installed, the rotating structure 4 is rotated, and the rotating structure 4 drives the downward pressure guide structure 5 to work. The downward pressure guide structure 5 drives the corresponding movable clamping member 3 to press close to the outer wall of the shaft circumference. Multiple movable clamping members 3 simultaneously press the outer wall of the shaft to clamp and achieve interference fit, so that the shaft and the sleeve 2 rotate synchronously. After locking, the rotating structure 4 is fixed by the locking structure 6.

[0027] The bearing assembly 1 of the present invention includes a bearing seat 101 , a bearing pump body 102 is provided in the bearing seat 101 , and the shaft sleeve 2 is installed in the bearing pump body 102 .

[0028] In the present invention, a plurality of movable clamping members 3 are evenly distributed around the circumference of the axis of the shaft sleeve 2 .

[0029] The movable clamping member 3 of the present invention includes a pushing shaft 301 arranged on the shaft sleeve 2 , and an arc-shaped clamping piece 302 is arranged at the inner end of the pushing shaft 301 .

[0030] The surface of the arc-shaped clamping piece 302 of the present invention is provided with rubber material.

[0031] The surface of the arc-shaped clamping piece 302 of the present invention is provided with an anti-slip structure.

[0032] The rotating structure 4 of the present invention includes an annular groove 401 provided on the outer circumferential wall of the shaft sleeve 2 , and an adjusting ring 402 is rotatably provided in the annular groove 401 .

[0033] The downward pressure guide structure 5 of the present invention includes an inner ring groove 501 provided on the adjusting ring 402, and the side wall of the inner ring groove 501 is provided with a driving guide groove 502. The push shaft 301 is provided with a driving shaft 503, and the driving shaft 503 is movably inserted into a corresponding driving guide groove 502.

[0034] The driving guide groove 502 of the present invention includes a first arc groove 100 and a second arc groove 200. The first arc groove 100 is arranged outside the second arc groove 200. The diameter of the second arc groove 200 is smaller than that of the first arc groove 100.

[0035] During the rotation of the adjustment ring 402, the driving guide groove 502 will be driven to rotate accordingly. At this time, the driving shaft 503 in the first arc groove 100 drives the arc clamping piece 302 to open, and the driving shaft 503 in the second arc groove 200 drives the arc clamping piece 302 to close.

[0036] The locking structure 6 of the present invention includes a threaded hole 601 provided on the shaft sleeve 2, and a locking screw 602 is provided on the adjusting ring 402. When the arc-shaped clamping piece 302 is moved inward and clamped, the threaded hole 601 and the locking screw 602 are aligned and matched.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A pallet lock sleeve, comprising a bearing assembly (1), wherein a sleeve (2) is arranged in the bearing assembly (1), and characterized in that: A plurality of movable clamping members (3) are provided on the inner wall of the shaft sleeve (2); a rotating structure (4) is provided on the shaft sleeve (2); a downward pressure guide structure (5) is provided between the movable clamping members (3) and the rotating structure (4); a locking structure (6) is provided between the rotating structure (4) and the shaft sleeve (2); and the movable clamping members (3) and the shaft sleeve (2) are made of PI material.

2. The pallet lock sleeve according to claim 1, characterized in that: The bearing assembly (1) comprises a bearing seat (101), a bearing pump body (102) is arranged in the bearing seat (101), and the shaft sleeve (2) is installed in the bearing pump body (102).

3. The pallet lock sleeve according to claim 2, characterized in that: The plurality of movable clamping members (3) are evenly distributed around the circumference of the axis of the shaft sleeve (2).

4. The pallet lock sleeve according to claim 3, characterized in that: The movable clamping member (3) comprises a pushing shaft (301) arranged on the shaft sleeve (2), and an arc-shaped clamping piece (302) is provided at the inner end of the pushing shaft (301).

5. The pallet lock sleeve according to claim 4, characterized in that: The surface of the arc-shaped clamping piece (302) is provided with rubber material.

6. The pallet lock sleeve according to claim 5, characterized in that: The surface of the arc-shaped clamping piece (302) is provided with an anti-slip structure.

7. A pallet lock sleeve according to any one of claims 4 to 6, characterized in that: The rotating structure (4) comprises an annular groove (401) provided on the circumferential outer wall of the shaft sleeve (2), and an adjusting ring (402) is rotatably provided in the annular groove (401).

8. The pallet lock sleeve according to claim 7, characterized in that: The downward pressure guide structure (5) includes an inner ring groove (501) provided on the adjustment ring (402), a driving guide groove (502) is provided on the side wall of the inner ring groove (501), a driving shaft (503) is provided on the push shaft (301), and the driving shaft (503) is movably inserted into a corresponding one of the driving guide grooves (502).

9. The pallet lock sleeve according to claim 8, characterized in that: The driving guide groove (502) includes a first arc-shaped groove (100) and a second arc-shaped groove (200), wherein the first arc-shaped groove (100) is arranged outside the second arc-shaped groove (200), and the diameter of the second arc-shaped groove (200) is smaller than the diameter of the first arc-shaped groove (100).

10. The pallet lock sleeve according to claim 9, characterized in that: The locking structure (6) includes a threaded hole (601) provided on the shaft sleeve (2), and a locking screw (602) is provided on the adjusting ring (402). When the arc-shaped clamping piece (302) moves inward and clamps, the threaded hole (601) and the locking screw (602) are aligned and matched.

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