Anti-falling tensioner shaft pin bending device

Abstract

The utility model discloses an anti-drop tensioner shaft pin bending device, which relates to the field of tensioner production and comprises a protective stabilizing frame, a fixed support frame is mounted at the top of the protective stabilizing frame, and an elastic sliding mechanism for pressing a clamping plate at the upper end is mounted in the fixed support frame. And the elastic sliding mechanism comprises a fixed driving motor, and a pressing embedding rod is mounted on the outer surface of the output end of the fixed driving motor. According to the anti-falling tensioner shaft pin bending device, when a shaft pin needs to be subjected to external clamping operation, a fixed driving motor is directly started to downwards pull a pressing embedding rod, so that an upper end clamping plate and a lower end clamping plate are gradually overlapped, and meanwhile, an extrusion shrinkage spring can also perform corresponding extrusion shrinkage; and the butt joint face of the upper end clamping plate and the lower end clamping plate is designed to be in a semi-arc shape, so that the transverse stability of the shaft pin is improved, the shaft pin cannot swing left and right in the bending process, and it can be guaranteed that the bending angle of the shaft pin is kept consistent.

Description

Technical Field

[0001] This utility model relates to the field of tensioner manufacturing technology, specifically to a tensioner shaft pin bending device for preventing detachment. Background Technology

[0002] During cargo transportation, it is often necessary to use straps to secure and tighten the goods to prevent them from falling off during transport. Ratchet tensioners are a common strap-assisted binding tool that helps people quickly and reliably secure and tighten goods. They have advantages such as strong tightening force and easy operation. Their structure usually includes a lever arm, support arm, ratchet, fixed shaft, ratchet shaft, clamp, and stop.

[0003] Existing devices mostly use clamping mechanisms to fix the bending work and then bend it, which cannot determine the specific bending angle and may affect the work quality. Secondly, the fixing of the pin is not stable and it is difficult to adapt to pins of different sizes.

[0004] To overcome the above-mentioned defects, the prior art (Chinese patent publication number: CN215657207U, application date: 2022-01-28) discloses a pin bending device for tensioner production, including a base box. A cylinder is bolted to the bottom of the inner wall of the base box. A long groove is slidably connected to the top of the cylinder. A fixed seat is bolted to the top of the long groove. A hinge block is bolted to the left side of the bottom of the fixed seat. A rotating column is fixedly sleeved inside the hinge block. The rotating column is rotatably connected to the base box. The fixed seat is pushed by the cylinder, causing it to rotate around the rotating column on the top of the base box. The specific amount of rotation is determined by rotating a pointer on the dial surface. The locking teeth are pulled by a pull block, and the screw is rotated by a throttle handle, causing two connecting blocks to slide relative to each other on the surface of the screw. This causes two clamping blocks to move closer together, clamping and fixing the pin. The bending angle can be determined, ensuring the work quality and the stability of the pin fixing state, and facilitating the work.

[0005] While the above design can solve the aforementioned problems, it lacks lateral stability when clamping the pin, causing it to sway left and right during bending and making it impossible to ensure that the bending angle remains consistent. In addition, the bending mechanism of the equipment is not easy to move, which can damage the outer surface of the pin during operation, resulting in a decrease in the production yield. Utility Model Content

[0006] The purpose of this utility model is to provide a bending device for anti-drop tensioner shaft pins, in order to solve the problems mentioned in the background art, such as insufficient lateral stability when clamping shaft pins, which causes the shaft pins to swing left and right during bending, making it impossible to ensure that the bending angle of the shaft pins remains consistent. At the same time, the bending mechanism of the device is not convenient to move, which can damage the outer surface of the shaft pins during operation, resulting in a decrease in the production yield.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bending device for an anti-drop tensioner shaft pin, comprising a protective stabilizing frame, a fixed support frame installed on the top of the protective stabilizing frame, and an elastic sliding mechanism for pressing down on the upper clamping plate installed inside the fixed support frame. The elastic sliding mechanism includes a fixed drive motor, and a pressing engagement rod is installed on the outer surface of the output end of the fixed drive motor. Limiting sliding frames are installed on both sides of the inner surface of the fixed support frame, and the two sides of the upper clamping plate slide along the inside of the limiting sliding frames. A supporting limiting rod is installed on the inner surface of the protective stabilizing frame, and a meshing transmission mechanism for moving the semi-circular bending rod up and down is installed on the outer surface of the supporting limiting rod.

[0008] Furthermore, the meshing transmission mechanism includes a connecting and fixing rack, which is fixedly installed on the outer surface of the output end of the fixed drive motor. A transmission connecting gear is installed on the inner surface of the protective stabilizer, and the connecting and fixing rack meshes with the transmission connecting gear.

[0009] Furthermore, the transmission connecting gear is rotatably installed inside the protective stabilizer, and a semi-circular bent rod is installed on the outer surface of the support limit rod. The semi-circular bent rod is slidably installed on the outer surface of the support limit rod, and an integral fixed rack is installed on the lower surface of the semi-circular bent rod.

[0010] Furthermore, a series fixing plate is installed on the upper surface of the upper clamping plate, and the top of the pressing and fitting rod passes through the interior of the series fixing plate. A lower clamping plate is installed on the bottom surface of the inner surface of the fixed support frame, and the installation position of the lower clamping plate corresponds to the installation position of the upper clamping plate.

[0011] Furthermore, through extension rods are installed on the left and right sides of the lower clamping plate, and compression springs are installed on the outer surface of the through extension rods. The top of the through extension rods penetrates the side of the lower clamping plate.

[0012] Furthermore, the top of the compression spring abuts against the lower surface of the lower clamping plate, and the interior of the upper clamping plate and the lower clamping plate are semi-circular. The upper clamping plate and the series fixing plate are integrated, and the fixed drive motor is fixedly installed inside the protective stabilizer.

[0013] Furthermore, the transmission connecting gear meshes with the integrated fixed rack, and the top of the semi-circular bent rod is designed as a semi-circular shape. The side of the fixed support frame is equipped with an abutting fixed frame, and the movement trajectory of the semi-circular bent rod abuts against the abutting fixed frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When the anti-drop tensioner pin bending device needs to perform external clamping operation on the pin, the fixed drive motor is directly started to pull the lower clamping rod downward, so that the upper clamping plate and the lower clamping plate gradually overlap. At the same time, the compression spring will also compress and contract accordingly. Furthermore, the mating surface of the upper clamping plate and the lower clamping plate is designed with a semi-circular arc shape. This design improves the lateral stability of the pin, and the pin will not swing left and right during the bending process, which can ensure that the bending angle of the pin remains consistent.

[0015] Furthermore, the downward pressure of the fixed drive motor drives the connecting fixed rack to move down synchronously, while the transmission connecting gear is driven to drive the integral fixed rack upward, and the semi-circular bending rod moves synchronously. During the movement of the semi-circular bending rod, the semi-circular bending rod will squeeze and bend the shaft pin. This design improves the mobility of the bending mechanism of the equipment and will not damage the outer surface of the shaft pin during operation, resulting in a higher production yield.

[0016] Furthermore, the contact fixing frame will abut the shaft pin during the bending process, ensuring a more stable processing. In addition, the movement of the upper and lower clamping plates will be limited by the limiting sliding frame, ensuring more reliable use of the equipment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the protective stabilizing frame of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the fixed support frame of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the lower clamping plate of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the upper clamping plate of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the semi-circular bending rod of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the support and limiting rod of this utility model.

[0023] In the diagram: 1. Protective stabilizing frame; 2. Fixed support frame; 3. Upper clamping plate; 4. Lower clamping plate; 5. Connecting fixed plate; 6. Downward pressing fitting rod; 7. Limiting sliding frame; 8. Through extension rod; 9. Compression contraction spring; 10. Fixed drive motor; 11. Abutting fixed frame; 12. Connecting fixed rack; 13. Transmission connecting gear; 14. Semi-circular bending rod; 15. Support limiting rod; 16. Integrated fixed rack. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: a bending device for an anti-drop tensioner shaft pin, comprising a protective stabilizing frame 1, a fixed support frame 2 installed on the top of the protective stabilizing frame 1, and an elastic sliding mechanism for pressing down on the upper clamping plate 3 installed inside the fixed support frame 2. The elastic sliding mechanism includes a fixed drive motor 10, and a pressing engagement rod 6 is installed on the outer surface of the output end of the fixed drive motor 10. Limiting sliding frames 7 are installed on both sides of the inner surface of the fixed support frame 2, and the two sides of the upper clamping plate 3 slide along the inside of the limiting sliding frames 7. A supporting limiting rod 15 is installed on the inner surface of the protective stabilizing frame 1, and a meshing transmission mechanism for moving the semi-circular bending rod 14 up and down is installed on the outer surface of the supporting limiting rod 15.

[0026] like Figure 2 , Figure 3 , Figure 4The technical solution shown herein addresses the problem of insufficient lateral stability during the clamping operation of the shaft pin, which causes left-right swaying during bending and prevents the shaft pin from maintaining a consistent bending angle. The solution discloses the following: a series fixing plate 5 is mounted on the upper surface of the upper clamping plate 3, and the top of the lower pressing and fitting rod 6 passes through the interior of the series fixing plate 5. A lower clamping plate 4 is mounted on the bottom surface of the inner surface of the fixed support frame 2, with the installation position of the lower clamping plate 4 corresponding to that of the upper clamping plate 3. Through-extension rods 8 are mounted on the left and right sides of the lower clamping plate 4, and compression springs 9 are mounted on the outer surface of the through-extension rods 8. The top of the through-extension rods 8 penetrates the side of the lower clamping plate 4, and the top of the compression springs 9 abuts against the lower surface of the lower clamping plate 4. The interiors of the upper clamping plate 3 and the lower clamping plate 4 are semi-circular, and the upper clamping plate 3 and the series fixing plate 5 are integrated. The fixed drive motor 10 is fixedly installed inside the protective stabilizer frame 1.

[0027] When external stabilization clamping of the shaft pin is required, the fixed drive motor 10, which is fixedly installed inside the protective stabilizer 1, is directly started. After the fixed drive motor 10 is driven, the externally fixed downward clamping rod 6 at the output end will move downward. As it moves, the downward clamping rod 6 will simultaneously press down the series fixing plate 5 nested at the top. As it moves, the series fixing plate 5 will vertically limit and slide along the inside of the limiting sliding frame 7 fixedly installed on both sides of the inner surface of the protective stabilizer 1. The movement of the series fixing plate 5 will simultaneously drive the three sets of upper clamping plates 3 fixedly installed on the lower surface. The movement of the upper clamping plate 3 will pass through the outer surface of the through extension rod 8 fixedly installed on both sides of the lower clamping plate 4. During the movement of the upper clamping plate 3, the lower surface of the upper clamping plate 3 will abut against the top of the compression spring 9 nested on the outer surface of the through extension rod 8. After being compressed by the top, the compression spring 9 will contract vertically. During the downward movement of the three sets of upper clamping plates 3, they will correspond and overlap with the lower clamping plate 4 fixedly installed inside the fixed support frame 2. Since the mating surfaces of the upper clamping plate 3 and the lower clamping plate 4 are both semi-circular, the clamping stability of the shaft pin is improved.

[0028] Example 2: Figure 2 , Figure 3 , Figure 4The technical solution shown addresses the problem of insufficient mobility in the bending mechanism design of the equipment, which causes damage to the outer surface of the shaft pin during operation, resulting in a decrease in production yield. It discloses the following: a meshing transmission mechanism includes a connecting and fixing rack 12, which is fixedly installed on the outer surface of the output end of the fixed drive motor 10. A transmission connecting gear 13 is installed on the inner surface of the protective stabilizer 1, and the connecting and fixing rack 12 meshes with the transmission connecting gear 13. The transmission connecting gear 13 is rotatably installed inside the protective stabilizer 1. A semi-circular bending rod 14 is installed on the outer surface of the support limit rod 15, and the semi-circular bending rod 14 is slidably installed on the outer surface of the support limit rod 15. An integral fixing rack 16 is installed on the lower surface of the semi-circular bending rod 14, and the transmission connecting gear 13 meshes with the integral fixing rack 16. The top of the semi-circular bending rod 14 has a semi-circular design. An abutting fixing frame 11 is installed on the side of the fixed support frame 2, and the movement trajectory of the semi-circular bending rod 14 abuts against the abutting fixing frame 11.

[0029] When an external bending operation is required on the shaft pin, when the fixed drive motor 10 starts working, the connecting fixed rack 12, which is fixedly installed on the outer surface of the output end, will be driven to move vertically downwards synchronously. During the movement of the connecting fixed rack 12, it will mesh with the transmission connecting gear 13 that is in contact with the outer surface. Since the transmission connecting gear 13 is rotatably installed inside the protective stabilizer 1, the connecting fixed rack 12 will be driven to rotate continuously. When the connecting fixed rack 12 is driven to rotate, it will mesh again with the integral fixed rack 16 that is in contact with the other side. When the rack 16 is driven, it will simultaneously lift the semi-circular bending rod 14 fixed at the upper end upward. The movement of the semi-circular bending rod 14 will be limited and slid along the outside of the support limit rod 15 fixed at the corresponding position on the inner surface of the protective stabilizer 1, making the use of the equipment more stable. As the semi-circular bending rod 14 moves upward, the top semi-circular part of the semi-circular bending rod 14 will abut against the outside of the shaft pin. As the semi-circular bending rod 14 continues to rise, the top of the shaft pin will abut against the abutting fixing frame 11 fixedly installed on the outer surface of the fixed support frame 2. The shaft pin will complete the bending work better due to the upper end of the abutting fixing frame 11.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bending device for anti-drop tensioner shaft pin, comprising a protective stabilizing frame (1), wherein a fixed support frame (2) is installed on the top of the protective stabilizing frame (1), and an elastic sliding mechanism for pressing down the upper clamping plate (3) is installed inside the fixed support frame (2); Its features are: The elastic sliding mechanism includes a fixed drive motor (10), and a pressing fitting rod (6) is installed on the outer surface of the output end of the fixed drive motor (10). Limiting sliding frames (7) are installed on both sides of the inner surface of the fixed support frame (2), and the two sides of the upper clamping plate (3) slide along the inside of the limiting sliding frame (7). A supporting limiting rod (15) is installed on the inner surface of the protective stabilizing frame (1), and a meshing transmission mechanism for moving the semi-circular bending rod (14) up and down is installed on the outer surface of the supporting limiting rod (15).

2. The anti-detachment tensioner shaft pin bending device according to claim 1, characterized in that: The meshing transmission mechanism includes a connecting and fixing rack (12), which is fixedly installed on the outer surface of the output end of the fixed drive motor (10). The inner surface of the protective stabilizer (1) is equipped with a transmission connecting gear (13), and the connecting and fixing rack (12) meshes with the transmission connecting gear (13).

3. The anti-drop tensioner pin bending device according to claim 2, characterized in that: The transmission connecting gear (13) is rotatably installed inside the protective stabilizer (1), and a semi-circular bent rod (14) is installed on the outer surface of the support limiting rod (15). The semi-circular bent rod (14) is slidably installed on the outer surface of the support limiting rod (15), and an integral fixed rack (16) is installed on the lower surface of the semi-circular bent rod (14).

4. The anti-detachment tensioner shaft pin bending device according to claim 1, characterized in that: The upper surface of the upper clamping plate (3) is equipped with a series fixing plate (5), and the top of the pressing fitting rod (6) passes through the interior of the series fixing plate (5). The bottom surface of the inner surface of the fixed support frame (2) is equipped with a lower clamping plate (4), and the installation position of the lower clamping plate (4) corresponds to the installation position of the upper clamping plate (3).

5. The anti-detachment tensioner shaft pin bending device according to claim 4, characterized in that: The lower clamping plate (4) has through extension rods (8) installed on its left and right sides, and compression springs (9) are installed on the outer surface of the through extension rods (8). The top of the through extension rods (8) penetrates the side of the lower clamping plate (4).

6. The anti-drop tensioner pin bending device according to claim 5, characterized in that: The top of the compression spring (9) abuts against the lower surface of the lower clamping plate (4), and the interior of the upper clamping plate (3) and the lower clamping plate (4) is semi-circular. The upper clamping plate (3) and the series fixing plate (5) are integrated, and the fixed drive motor (10) is fixedly installed inside the protective stabilizer (1).

7. The anti-drop tensioner pin bending device according to claim 3, characterized in that: The transmission connecting gear (13) meshes with the integral fixed rack (16), and the top of the semi-circular bent rod (14) is designed as a semi-circular shape. The side of the fixed support frame (2) is equipped with an abutting fixed frame (11), and the movement trajectory of the semi-circular bent rod (14) abuts against the abutting fixed frame (11).

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