Rotating shaft connecting device capable of limiting rotating angle

Abstract

The utility model discloses a rotating shaft connecting device for limiting the rotation angle, which relates to the technical field of rotating shafts and comprises a first connecting block, a rotating shaft body is fixedly connected to the inner wall of the first connecting block, a second connecting block is sleeved on the surface of the rotating shaft body, and the rotating shaft body is rotatably connected to the inner wall of the second connecting block. The end, close to the second connecting block, of the rotating shaft body is fixedly connected with a limiting plate, the side, close to the limiting plate, of the second connecting block is fixedly connected with a limiting cylinder, the surface of the limiting plate is sleeved with the limiting cylinder, and the inner wall of the limiting cylinder is fixedly connected with two first limiting blocks. The rotating shaft connecting device capable of limiting the rotating angle solves the problems that in the rotating process of the rotating shaft connecting device capable of limiting the rotating angle, due to the fact that it is difficult to accurately control the set limiting angle, after the rotating shaft connecting device is rotated to the limiting angle, the rotating shaft is prone to being damaged, and the service life of the rotating shaft is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shafts, in particular to a rotating shaft connecting device for limiting the rotation angle. Background Art

[0002] A pivot connector is a rotating component that can withstand bending and torque and is used to connect product components. It is usually used in various occasions such as automobiles. According to its function, the pivot can be divided into a pivot without angle limit, a pivot with angle limit, a multi-stage torque pivot, a fixed-point pivot, etc. Among them, the pivot connector with angle limit can prevent the product from excessive rotation or accidental damage during use, thereby ensuring the performance of the pivot connector as much as possible.

[0003] The above-mentioned and existing related technologies often have the following defects: after using a rotating shaft connection device with a limited rotation angle to connect parts on a car or parts of other products, during the rotation process of the rotating shaft connection device with a limited rotation angle, it is difficult to accurately control the set limited angle. When the rotation reaches the limited angle, continued rotation often easily causes damage to the shaft, thereby affecting the service life of the shaft.

[0004] To this end, we propose a rotating shaft connection device that limits the rotation angle. Utility Model Content

[0005] The purpose of the utility model is to provide a rotating shaft connection device with limited rotation angle to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a rotating shaft connection device for limiting a rotation angle, comprising a first connecting block, an inner wall of the first connecting block is fixedly connected to a rotating shaft body, a surface of the rotating shaft body is sleeved with a second connecting block, the rotating shaft body is rotatably connected to the inner wall of the second connecting block, one end of the rotating shaft body close to the second connecting block is fixedly connected to a limiting plate, a side of the second connecting block close to the limiting plate is fixedly connected to a limiting cylinder, the limiting cylinder is sleeved on the surface of the limiting plate, the inner wall of the limiting cylinder is fixedly connected to two first limiting blocks, the inner wall of the second connecting block is fixedly connected to a second limiting block, the first connecting block is fixedly connected to a side of the limiting plate close to an arc block, the upper surface of the arc block is arc-shaped, the second connecting block is fixedly connected to a mounting plate on a side of the arc block, and the mounting plate is fixedly connected to a first damper on a side of the arc block.

[0007] The effects achieved by the above components are: by setting the mounting plate, the first damper can be mounted on the second connecting block, and by setting the arc block and the first damper, a buffering effect can be achieved when the first connecting block and the second connecting block are rotated.

[0008] Preferably, a rubber head is adhesively bonded to one end of the first damper close to the arc-shaped block.

[0009] The effects achieved by the above components are as follows: The movement of the arc-shaped block pushes the first damper through the rubber head. By setting the rubber head, it can protect the first damper when the arc-shaped block controls the first damper.

[0010] Preferably, a stabilizing plate is fixedly connected to the surface of the first damper. The stabilizing plate is fixedly connected to the second connecting block. A moving plate is fixedly connected to the surface of the first damper. The moving plate is installed on one side of the second connecting block close to the first damper.

[0011] The effects achieved by the above components are as follows: By setting the stabilizing plate, the installation stability of the first damper can be improved. By setting the moving plate, the stability during the telescoping of the first damper can be improved.

[0012] Preferably, a chute is formed on one side of the second connecting block close to the moving plate. A slider is slidably connected to the surface of the chute on the second connecting block. The slider is fixedly connected to the moving plate.

[0013] The effects achieved by the above components are as follows: The slider slidably connected to the second connecting block can move, thus ensuring that the moving plate can move while being connected to the second connecting block.

[0014] Preferably, a fixing rod is slidably connected to the inner wall of the slider. The fixing rod is fixedly connected to the surface of the chute on the second connecting block. A spring is sleeved on the surface of the fixing rod. Both ends of the spring are fixedly connected to the slider and the second connecting block respectively.

[0015] The effects achieved by the above components are as follows: By setting the fixing rod, the position of the spring can be restricted. By setting the spring, the smoothness during the movement of the slider can be improved.

[0016] Preferably, a second damper is fixedly connected to one side of the second connecting block close to the limiting plate. A resisting block is fixedly connected to one end of the second damper close to the limiting plate. The side of the resisting block close to the limiting plate is arc-shaped.

[0017] The effects achieved by the above components are as follows: By setting the resisting block, when the limiting plate rotates, it can squeeze the second damper through the resisting block, so that the second damper can play a buffering role for the limiting plate.

[0018] Preferably, a sleeve plate is sleeved on the surface of the second damper. The sleeve plate is fixedly connected to the second connecting block.

[0019] The effects achieved by the above components are as follows: The second damper slidably connected to the inner wall of the sleeve plate can move. By setting the sleeve plate, the stability during the telescoping of the second damper can be improved.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model, by providing the first damper and the second damper, can protect the rotating shaft connection device for limiting the rotation angle when it is rotated, thereby avoiding damage to the rotating shaft when the rotation force is large as much as possible, thereby ensuring the service life of the rotating shaft connection device for limiting the rotation angle as much as possible, and by providing the stabilizing plate, the moving plate and the sleeve plate, the first damper and the second damper can be protected as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0024] Figure 3 For this utility model Figure 1 Schematic diagram of the local structure;

[0025] Figure 4 For this utility model Figure 2 Schematic diagram of the local structure;

[0026] Figure 5 For this utility model Figure 2 Enlarged view of point A.

[0027] In the figure: 1-first connecting block; 2-second connecting block; 3-rotating shaft body; 4-limiting plate; 5-limiting cylinder; 6-first limiting block; 7-second limiting block; 8-arc block; 9-mounting plate; 10-first damper; 11-stabilizing plate; 12-moving plate; 13-rubber head; 14-slider; 15-fixing rod; 16-spring; 17-second damper; 18-sleeve plate; 19-resist block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1-5, the present utility model provides a technical solution: a rotating shaft connection device for limiting the rotation angle, including a first connection block 1. The inner wall of the first connection block 1 is fixedly connected with a rotating shaft body 3. The surface of the rotating shaft body 3 is sleeved with a second connection block 2. The rotating shaft body 3 is rotatably connected to the inner wall of the second connection block 2. One end of the rotating shaft body 3 close to the second connection block 2 is fixedly connected with a limiting plate 4. One side of the second connection block 2 close to the limiting plate 4 is fixedly connected with a limiting cylinder 5. The limiting cylinder 5 is sleeved on the surface of the limiting plate 4. Two first limiting blocks 6 are fixedly connected to the inner wall of the limiting cylinder 5. A second limiting block 7 is fixedly connected to the inner wall of the second connection block 2. One side of the first connection block 1 close to the limiting plate 4 is fixedly connected with an arc-shaped block 8. The upper surface of the arc-shaped block 8 is arc-shaped. One side of the second connection block 2 close to the arc-shaped block 8 is fixedly connected with a mounting plate 9. A first damper 10 is fixedly connected to one side of the mounting plate 9 close to the arc-shaped block 8. By providing the mounting plate 9, the first damper 10 can be installed on the second connection block 2. By providing the arc-shaped block 8 and the first damper 10, a buffering effect can be achieved when the first connection block 1 and the second connection block 2 are rotated.

[0030] Next, specifically describe its overall specific settings and functions.

[0031] As Figures 1-5 shown, a rubber head 13 is bonded to one end of the first damper 10 close to the arc-shaped block 8. The movement of the arc-shaped block 8 pushes the first damper 10 through the rubber head 13. By providing the rubber head 13, a protective effect can be achieved on the first damper 10 when the arc-shaped block 8 controls the first damper 10. A stabilizing plate 11 is fixedly connected to the surface of the first damper 10. The stabilizing plate 11 is fixedly connected to the second connection block 2. A moving plate 12 is fixedly connected to the surface of the first damper 10. The moving plate 12 is installed on one side of the second connection block 2 close to the first damper 10. By providing the stabilizing plate 11, the installation stability of the first damper 10 can be improved. By providing the moving plate 12, the stability during the telescoping of the first damper 10 can be improved. A sliding groove is opened on one side of the second connection block 2 close to the moving plate 12. A slider 14 is slidably connected to the surface of the sliding groove on the second connection block 2. The slider 14 is fixedly connected to the moving plate 12. The slider 14 slidably connected to the second connection block 2 can move, thereby ensuring that the moving plate 12 can move while being connected to the second connection block 2.

[0032] A fixed rod 15 is slidably connected to the inner wall of the slider 14. The fixed rod 15 is fixedly connected to the surface of the chute of the second connecting block 2. A spring 16 is sleeved on the surface of the fixed rod 15. The two ends of the spring 16 are fixedly connected to the slider 14 and the second connecting block 2 respectively. By providing the fixed rod 15, the position of the spring 16 can be restricted. By providing the spring 16, the smoothness of the movement of the slider 14 can be improved. A second damper 17 is fixedly connected to one side of the second connecting block 2 close to the limit plate 4. One end of the second damper 17 close to the limit plate 4 is fixedly connected to a contact block 19. The side of the contact block 19 close to the limit plate 4 is arc-shaped. By providing the contact block 19, when the limit plate 4 rotates, the second damper 17 can be squeezed through the contact block 19, so that the second damper 17 can play a buffering role for the limit plate 4. A sleeve plate 18 is sleeved on the surface of the second damper 17. The sleeve plate 18 is fixedly connected to the second connecting block 2. The second damper 17 slidably connected to the inner wall of the sleeve plate 18 can move. By providing the sleeve plate 18, the stability of the telescopic process of the second damper 17 can be improved.

[0033] Working principle: When using the rotating shaft connection device with a limited rotation angle, rotate the first connecting block 1 and the second connecting block 2. The first connecting block 1 drives the rotating shaft body 3 to rotate inside the inner wall of the second connecting block 2. At this time, the limit plate 4 rotates inside the inner walls of the limit cylinder 5 and the second connecting block 2. When rotating to the set maximum angle, the first limit block 6 and the second limit block 7 limit the rotation of the limit plate 4. During the process of the first connecting block 1 rotating close to the first damper 10, the arc-shaped block 8 contacts the rubber head 13. At this time, the arc-shaped block 8 pushes the first damper 10 through the rubber head 13 to drive the moving plate 12 to move close to the stabilizing plate 11. At the same time, the slider 14 slides on the surface of the fixed rod 15. At this time, the first damper 10 plays a buffering effect on the rotation of the arc-shaped block 8 and the first connecting block 1. When the arc-shaped block 8 rotates away from the mounting plate 9, the first damper 10 extends. At the same time, under the action of the elastic force of the spring 16, it can be ensured as much as possible that during the extension process of the first damper 10, there will be no situation where the deflection trend of the slider 14 hinders the extension of the first damper 10. Continue to rotate the first connecting block 1 so that the limit plate 4 rotates close to the contact block 19, so that the second damper 17 slides inside the inner wall of the sleeve plate 18 through the contact block 19. At this time, the contraction of the second damper 17 plays a buffering effect on the limit plate 4. By providing the first damper 10 and the second damper 17, when rotating the rotating shaft connection device with a limited rotation angle, a protective effect can be achieved on it, so as to avoid damaging the rotating shaft as much as possible when the rotational force is relatively large, and thus ensure the service life of the rotating shaft connection device with a limited rotation angle as much as possible. By providing the stabilizing plate 11, the moving plate 12 and the sleeve plate 18, a protective effect can be achieved on the first damper 10 and the second damper 17 as much as possible.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotating shaft connection device for limiting the rotation angle, comprising a first connection block (1), characterized in that: The inner wall of the first connecting block (1) is fixedly connected with a rotating shaft body (3), the surface of the rotating shaft body (3) is sleeved with a second connecting block (2), the rotating shaft body (3) is rotatably connected to the inner wall of the second connecting block (2), one end of the rotating shaft body (3) close to the second connecting block (2) is fixedly connected to a limiting plate (4), and one side of the second connecting block (2) close to the limiting plate (4) is fixedly connected to a limiting cylinder (5), the limiting cylinder (5) is sleeved on the surface of the limiting plate (4), and the limiting cylinder (5) is sleeved on the surface of the limiting plate (4). Two first limit blocks (6) are fixedly connected to the inner wall of the positioning tube (5); a second limit block (7) is fixedly connected to the inner wall of the second connection block (2); an arc block (8) is fixedly connected to the side of the first connection block (1) close to the limit plate (4); the upper surface of the arc block (8) is arc-shaped; a mounting plate (9) is fixedly connected to the side of the second connection block (2) close to the arc block (8); and a first damper (10) is fixedly connected to the side of the mounting plate (9) close to the arc block (8).

2. A rotating shaft connection device for limiting the rotation angle according to claim 1, characterized in that: A rubber head (13) is glued to one end of the first damper (10) close to the arc-shaped block (8).

3. A rotating shaft connection device for limiting rotation angle according to claim 1, characterized in that: A stabilizing plate (11) is fixedly connected to the surface of the first damper (10), and the stabilizing plate (11) is fixedly connected to the second connecting block (2). A movable plate (12) is fixedly connected to the surface of the first damper (10), and the movable plate (12) is installed on a side of the second connecting block (2) close to the first damper (10).

4. A rotating shaft connection device for limiting the rotation angle according to claim 3, characterized in that: A sliding groove is provided on one side of the second connecting block (2) close to the movable plate (12); a sliding block (14) is slidably connected to the surface of the sliding groove on the second connecting block (2); and the sliding block (14) is fixedly connected to the movable plate (12).

5. A rotating shaft connection device for limiting the rotation angle according to claim 4, characterized in that: The inner wall of the sliding block (14) is slidably connected to a fixing rod (15), the fixing rod (15) is fixedly connected to the surface of a sliding groove on the second connecting block (2), the surface of the fixing rod (15) is sleeved with a spring (16), and the two ends of the spring (16) are respectively fixedly connected to the sliding block (14) and the second connecting block (2).

6. A rotating shaft connection device for limiting rotation angle according to claim 1, characterized in that: A second damper (17) is fixedly connected to one side of the second connecting block (2) close to the limiting plate (4), and a stop block (19) is fixedly connected to one end of the second damper (17) close to the limiting plate (4); the stop block (19) is arc-shaped on one side close to the limiting plate (4).

7. A rotating shaft connection device for limiting the rotation angle according to claim 6, characterized in that: The surface of the second damper (17) is covered with a sleeve plate (18), and the sleeve plate (18) is fixedly connected to the second connecting block (2).

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