High-precision telescopic sleeve
By using the design of the limit block and push plate, the problem of nut slippage and difficulty in removal caused by wear on the inner wall of the sleeve is solved, achieving high-precision torque control and convenient nut removal.
Patent Information
- Application Number
- CN202520333599.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-28
AI Technical Summary
After long-term use, wear on the inner wall of the sleeve causes poor contact between the inner wall and the nut, making it easy for the nut to slip when rotating inside the sleeve, and making it difficult to remove the nut from the sleeve.
Through the design of limit blocks, rotating blocks, push plates, and springs, the limit blocks can fit tightly against the nut after wear, the rotating blocks can prevent slippage, and the push plates push the nut out by spring force, simplifying the removal process.
This design ensures that the nut does not slip when rotating inside the sleeve, and that it is easy to remove from the sleeve after unscrewing, thus ensuring precise torque control and convenient operation.
Smart Images
Figure CN223749530U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sleeve technical field, concretely relates to a high accuracy telescopic sleeve. BACKGROUND
[0002] At present, the telescopic sleeve on the market, mostly through the telescopic component on the sleeve makes the length of telescopic sleeve can be adjusted according to different use demand, but the sleeve is worn after long-term use, its inner wall is prone to wear phenomenon, once the sleeve inner wall wears, then will lead to the contact between sleeve inner wall and nut not enough close, and lead to the nut in the sleeve rotation just easy to slip, and then make the torque applied on the nut can not be accurately controlled, simultaneously, after using the sleeve and nut is screwed down, often because the nut is stuck in the sleeve and not easy to take out. SUMMARY
[0003] The utility model discloses a high accuracy telescopic sleeve, solved the sleeve in long-term use, its inner wall is prone to wear phenomenon, once the sleeve inner wall wears, then will lead to the contact between sleeve inner wall and nut not enough close, and lead to the nut in the sleeve rotation just easy to slip, and then make the torque applied on the nut can not be accurately controlled, simultaneously, solved the user in the nut from the bolt and is screwed down, often because the nut is stuck in the sleeve and not easy to take out.
[0004] The utility model discloses the technical scheme specifically as follows:
[0005] A high accuracy telescopic sleeve, including sleeve main part, the surface of sleeve main part is set with first slide hole, the surface of sleeve main part is fixedly connected with first U-shaped board, the inner wall of first U-shaped board and the inner wall of first slide hole are all attached with the limiting block that sets up, the inside of limiting block is set with first strip hole, the surface of first U-shaped board is set with second strip hole, the inner wall of first strip hole and the inner wall of second strip hole are all attached with the cylinder that sets up, the surface of first U-shaped board is attached with second U-shaped board, both ends of cylinder are fixedly connected with the inner wall of second U-shaped board, the upper surface of second U-shaped board is fixedly connected with annular connecting plate, the inner wall of annular connecting plate is fixedly connected with bearing, the inner wall of bearing is fixedly connected with first screw thread cylinder, the surface of first screw thread cylinder is fixedly connected with rotating block, the inner wall of first screw thread cylinder is threadedly connected with threaded column, the bottom of threaded column is fixedly connected with the upper surface of sleeve main part, the surface of threaded column is threadedly connected with telescopic component, the upper surface of telescopic component is fixedly connected with connecting piece, the upper surface of threaded column is set with locking groove, the inner wall of locking groove and the surface of telescopic component are attached.
[0006] The utility model further sets up, the telescopic component includes second threaded cylinder, adjusting nut, first sliding slot, first ring and locking plate, the upper surface of second threaded cylinder is fixedly connected with the bottom of connecting piece, the inner wall of second threaded cylinder is in surface screw thread connection with threaded column, the surface of second threaded cylinder is in surface screw thread connection with adjusting nut, first sliding slot is set up on the surface of second threaded cylinder, the number of first ring is two, adjusting nut is located between two first rings, the inner wall of first ring is pasted with the surface of second threaded cylinder, the inner wall of first ring is fixedly connected with the surface of locking plate, the inner wall of first sliding slot and the inner wall of locking groove are all pasted with the surface of locking plate.
[0007] The utility model further sets up, the center of sleeve main part, threaded column and connecting piece is all on same vertical line.
[0008] The utility model further sets up, second strip hole is vertical, the included angle between second strip hole and first strip hole is 15 DEG.
[0009] The utility model further sets up, the upper surface of sleeve main part is seted up with second sliding hole, the bottom of threaded column is seted up with second sliding slot, the inner wall of second sliding hole and the inner wall of second sliding slot are all pasted with push board and are set up, the front and rear sides of push board are all fixedly connected with second ring, the inner wall of second ring is pasted with the surface of threaded column, the bottom of second ring and the upper surface of sleeve main part are all fixedly connected with spring.
[0010] The utility model further sets up, the center of push board coincides with the axis of threaded column, and the elasticity of spring is greater than the weight of second ring and push board.
[0011] The utility model discloses a kind of high-precision telescopic sleeves, which has the following technical effects:
[0012] The utility model discloses a kind of high-precision telescopic sleeves, which has the following technical effects:
[0013] The utility model discloses a high-precision telescopic sleeve passes through the pulling force of spring to second ring, and the push plate generates the upward thrust to the screwed nut in the sleeve main part, and then the user uses the telescopic sleeve, and the screwed nut is screwed down from the bolt, and through the thrust of the push plate to the screwed nut, can push the screwed nut from the telescopic sleeve, and then the user takes away the screwed nut from the telescopic sleeve. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the three-dimensional schematic view of the structure of the utility model;
[0015] Figure 2 It is the right view of the structure of the utility model;
[0016] Figure 3 It is Figure 2 the section view at A-A in the utility model;
[0017] Figure 4 It is the front view of sleeve main part in the utility model;
[0018] Figure 5 It is Figure 4 the section view at B-B in the utility model;
[0019] Figure 6 It is the schematic view of the limiting block in the utility model;
[0020] Figure 7 It is the schematic view of the second U-shaped plate in the utility model;
[0021] Figure 8 It is the front view of threaded column in the utility model;
[0022] Figure 9 It is the front view of telescopic assembly in the utility model;
[0023] Figure 10 It is Figure 9 the section view at C-C in the utility model.
[0024] In the drawings, the component list represented by each sign is as follows:
[0025] 1, sleeve main part;2, first sliding hole;3, first U-shaped plate;4, limiting block;5, first bar hole;6, second bar hole;7, cylinder;8, second U-shaped plate;9, annular connecting plate;10, bearing;11, first threaded cylinder;12, rotating block;13, threaded column;14, telescopic assembly;141, second threaded cylinder;142, adjusting nut;143, first sliding groove;144, first ring;145, locking plate;15, connecting piece;16, locking groove;17, second sliding hole;18, second sliding groove;19, push plate;20, second ring;21, spring. DETAILED DESCRIPTION
[0026] In order to make the above objectives, features and advantages of the present application more apparent, a detailed description of the specific embodiments of the present application will be given below with reference to the accompanying drawings.
[0027] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.
[0028] As shown in Figures 1 to 10 A high-precision telescopic sleeve, comprising a sleeve body 1, a first sliding hole 2 is formed on the surface of the sleeve body 1, a first U-shaped plate 3 is fixedly connected to the surface of the sleeve body 1, a limiting block 4 is arranged on the inner wall of the first U-shaped plate 3 and the inner wall of the first sliding hole 2, a first slot 5 is formed in the limiting block 4, a second slot 6 is formed on the surface of the first U-shaped plate 3, the second slot 6 is vertical, the included angle between the first slot 5 and the second slot 6 is 15°, a cylinder 7 is arranged on the inner wall of the first slot 5 and the second slot 6, a second U-shaped plate 8 is arranged on the surface of the first U-shaped plate 3, both ends of the cylinder 7 are fixedly connected to the inner wall of the second U-shaped plate 8, an annular connecting plate 9 is fixedly connected to the upper surface of the second U-shaped plate 8, a bearing 10 is fixedly connected to the inner wall of the annular connecting plate 9, a first threaded cylinder 11 is fixedly connected to the inner wall of the bearing 10, a rotating block 12 is fixedly connected to the surface of the first threaded cylinder 11, a threaded column 13 is threadedly connected to the inner wall of the first threaded cylinder 11, the bottom of the threaded column 13 is fixedly connected to the upper surface of the sleeve body 1, a telescopic assembly 14 is threadedly connected to the surface of the threaded column 13, a connecting piece 15 is fixedly connected to the upper surface of the telescopic assembly 14, the centers of the sleeve body 1, the threaded column 13 and the connecting piece 15 are on the same vertical line, a locking groove 16 is formed on the upper surface of the threaded column 13, and the inner wall of the locking groove 16 is in contact with the surface of the telescopic assembly 14.
[0029] The telescopic assembly 14 comprises a second threaded cylinder 141, an adjusting nut 142, a first sliding groove 143, a first circular ring 144 and a locking plate 145, the upper surface of the second threaded cylinder 141 is fixedly connected with the bottom of the connecting piece 15, the inner wall of the second threaded cylinder 141 is threadedly connected with the surface of the threaded column 13, the surface of the second threaded cylinder 141 is threadedly connected with the inner wall of the adjusting nut 142, the first sliding groove 143 is arranged on the surface of the second threaded cylinder 141, the number of the first circular rings 144 is two, the adjusting nut 142 is located between the two first circular rings 144, the inner wall of the first circular ring 144 is attached to the surface of the second threaded cylinder 141, the inner wall of the first circular ring 144 is fixedly connected with the surface of the locking plate 145, and the inner walls of the first sliding groove 143 and the locking groove 16 are both attached to the surface of the locking plate 145.
[0030] It should be noted that, through the cooperation of the first sliding hole 2, the first U-shaped plate 3, the first strip-shaped hole 5, the second strip-shaped hole 6 and the cylinder 7, when the second U-shaped plate 8 moves downward, the distance between the adjacent limiting blocks 4 will decrease, and when the second U-shaped plate 8 moves upward, the distance between the adjacent limiting blocks 4 will increase, the annular connecting plate 9 and the first threaded cylinder 11 are connected together through the bearing 10, and the first threaded cylinder 11 can freely rotate in the annular connecting plate 9, when the user rotates the rotating block 12, the annular connecting plate 9 can move upward or downward through the cooperation of the first threaded cylinder 11 and the threaded column 13.
[0031] When the adjusting nut 142 rotates, the locking plate 145 moves upward or downward through the first circular ring 144, when the locking plate 145 is separated from the locking groove 16, the length of the telescopic sleeve can be changed by rotating the second threaded cylinder 141, and when the locking plate 145 contacts the locking groove 16, the second threaded cylinder 141 cannot rotate and the length of the telescopic sleeve cannot be changed through the cooperation of the locking plate 145 and the locking groove 16.
[0032] As shown in Figures 1 to 8 The upper surface of the sleeve body 1 is provided with a second sliding hole 17, the bottom of the threaded column 13 is provided with a second sliding groove 18, the inner walls of the second sliding hole 17 and the second sliding groove 18 are both attached with a push plate 19, the front and rear sides of the push plate 19 are both fixedly connected with a second circular ring 20, the inner wall of the second circular ring 20 is attached to the surface of the threaded column 13, and the bottom of the second circular ring 20 and the upper surface of the sleeve body 1 are both fixedly connected with a spring 21.
[0033] The center of the push plate 19 coincides with the axis of the threaded column 13, and the elastic force of the spring 21 is greater than the weight sum of the second circular ring 20 and the push plate 19.
[0034] It needs to be explained that the spring 21 pulls the second ring 20, and the push plate 19 generates an upward thrust on the screwed nut in the sleeve body 1, and then the user uses the telescopic sleeve, and after the screwed nut is unscrewed from the bolt, the push plate 19 pushes the screwed nut out of the telescopic sleeve, and then the user takes the unscrewed nut out of the telescopic sleeve.
[0035] When the user adjusts the telescopic sleeve, the adjusting nut 142 is first rotated, the locking plate 145 is moved upward under the cooperation of the adjusting nut 142, the second threaded cylinder 141 and the first ring 144, and when the locking plate 145 is separated from the locking groove 16, the second threaded cylinder 141 is rotated, the distance between the connecting piece 15 and the sleeve body 1 is changed, and when the distance between the connecting piece 15 and the sleeve body 1 is adjusted to an appropriate size, the adjusting nut 142 is rotated, the locking plate 145 is moved downward under the cooperation of the adjusting nut 142, the second threaded cylinder 141 and the first ring 144, and when the locking plate 145 is inserted into the locking groove 16, the second threaded cylinder 141 cannot be rotated under the cooperation of the locking plate 145 and the locking groove 16, and the length of the telescopic sleeve cannot be changed.
[0036] When the user uses the telescopic sleeve to tighten the screwed nut, the sleeve body 1 is first sleeved outside the screwed nut, and the rotating block 12 is rotated, the annular connecting plate 9 is moved downward under the cooperation of the first threaded cylinder 11 and the threaded column 13, at this time, the distance between the adjacent limiting blocks 4 is reduced under the cooperation of the first sliding hole 2, the first U-shaped plate 3, the first strip-shaped hole 5, the second strip-shaped hole 6 and the cylinder 7, and the limiting blocks 4 are tightly fitted with the screwed nut, at this time, the limiting blocks 4 prevent the screwed nut from slipping in the telescopic sleeve when the user rotates the screwed nut through the telescopic sleeve.
[0037] When the user uses the telescopic sleeve to unscrew the screwed nut from the bolt, the spring 21 pulls the second ring 20, and the push plate 19 generates an upward thrust on the screwed nut in the sleeve body 1, at this time, the push plate 19 pushes the screwed nut out of the telescopic sleeve.
[0038] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the art, without departing from the principle of the present application, some improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art without special description and limitation.
Claims
1. A high-precision telescoping sleeve characterized by: The utility model provides a sleeve body (1), the surface of sleeve body (1) is equipped with first sliding hole (2), the surface of sleeve body (1) is fixedly connected with first U-shaped plate (3), the inner wall of first U-shaped plate (3) and the inner wall of first sliding hole (2) are all set with limit block (4) of adhesion, the inside of limit block (4) is equipped with first strip hole (5), the surface of first U-shaped plate (3) is equipped with second strip hole (6), the inner wall of first strip hole (5) and the inner wall of second strip hole (6) are all set with cylinder (7) of adhesion, the surface of first U-shaped plate (3) is set with second U-shaped plate (8) of adhesion, both ends of cylinder (7) are fixedly connected with the inner wall of second U-shaped plate (8), the upper surface of second U-shaped plate (8) is fixedly connected with annular connecting plate (9), the inner wall of annular connecting plate (9) is fixedly connected with bearing (10), the inner wall of bearing (10) is fixedly connected with first threaded cylinder (11), the surface of first threaded cylinder (11) is fixedly connected with rotating block (12), the inner wall of first threaded cylinder (11) is threadedly connected with threaded column (13), the bottom of threaded column (13) is fixedly connected with the upper surface of sleeve body (1), the surface of threaded column (13) is threadedly connected with telescopic subassembly (14), the upper surface of telescopic subassembly (14) is fixedly connected with connecting piece (15), the upper surface of threaded column (13) is equipped with locking groove (16), the inner wall of locking groove (16) and the surface of telescopic subassembly (14) are adhesion.
2. A high-precision telescopic sleeve according to claim 1, characterized in that: The telescopic subassembly (14) includes a second threaded cylinder (141), an adjusting nut (142), a first sliding groove (143), a first circular ring (144), and a locking plate (145), the upper surface of the second threaded cylinder (141) is fixedly connected with the bottom of the connecting piece (15), the inner wall of the second threaded cylinder (141) is threadedly connected with the surface of the threaded column (13), the surface of the second threaded cylinder (141) is threadedly connected with the inner wall of the adjusting nut (142), the first sliding groove (143) is formed on the surface of the second threaded cylinder (141), the number of the first circular rings (144) is two, the adjusting nut (142) is located between the two first circular rings (144), the inner wall of the first circular ring (144) is adhesion with the surface of the second threaded cylinder (141), the inner wall of the first circular ring (144) is fixedly connected with the surface of the locking plate (145), the inner wall of the first sliding groove (143) and the inner wall of the locking groove (16) are both adhesion with the surface of the locking plate (145).
3. A high-precision telescopic sleeve according to claim 1, characterized in that: The centers of the sleeve body (1), the threaded column (13), and the connecting piece (15) are on the same vertical line.
4. A high-precision telescopic sleeve according to claim 1, characterized in that: The second strip hole (6) is vertical, and the included angle between the second strip hole (6) and the first strip hole (5) is 15°.
5. A high-precision telescopic sleeve according to claim 1, characterized in that: The upper surface of the sleeve body (1) is provided with a second sliding hole (17), the bottom of the threaded column (13) is provided with a second sliding groove (18), the inner wall of the second sliding hole (17) and the inner wall of the second sliding groove (18) are both provided with a push plate (19), the front and rear sides of the push plate (19) are both fixedly connected with a second circular ring (20), the inner wall of the second circular ring (20) is attached to the surface of the threaded column (13), and the bottom of the second circular ring (20) and the upper surface of the sleeve body (1) are both fixedly connected with a spring (21).
6. A high-precision telescopic sleeve according to claim 5, characterized in that: The center of the push plate (19) coincides with the axis of the threaded column (13), and the elastic force of the spring (21) is greater than the weight sum of the second circular ring (20) and the push plate (19).