Electric tightening gun counterforce arm anti-falling device

Abstract

This utility model belongs to the technical field of electric tightening gun reaction arm, and particularly relates to an anti-fall device for the reaction arm of an electric tightening gun. It includes a fixed cylinder and a sliding rod, with the sliding rod movable inside the fixed cylinder. An anti-fall mechanism is installed on the outside of the fixed cylinder. This anti-fall device for the electric tightening gun reaction arm, through the installation of the anti-fall mechanism, detects abnormal sliding behavior of the sliding rod via a detection component. The detection component then transmits a signal, controlling a hydraulic telescopic rod to push a movable plate towards the side plate. This causes the connecting shaft to move inside the movable groove. During this movement, the connecting shaft drives a clamping plate to rotate around the fixed seat, causing the clamping plate to move an anti-slip pad inward. This brings the anti-slip pad into contact with the outer surface of the sliding rod, continuously pressing inward, thus providing cushioning and auxiliary support to the sliding rod, preventing the tightening gun from falling and thus avoiding damage to the tightening gun.

Description

Technical Field

[0001] This utility model relates to the field of electric tightening gun reaction arm technology, specifically an electric tightening gun reaction arm anti-fall device. Background Technology

[0002] In many areas of modern industrial production, electric tightening guns are widely and frequently used for tightening bolts and nuts due to their high efficiency and precision. When an electric tightening gun performs a tightening task, it generates a considerable reaction force. To effectively overcome this force and ensure stable and smooth operation, it is usually equipped with a corresponding reaction arm device. The reaction arm device acts as a reliable "partner" to the electric tightening gun; under normal operating conditions, the two work together to ensure the tightening work is carried out in an orderly manner.

[0003] However, it cannot be ignored that existing reaction arm devices have revealed some potential safety hazards during actual use. Over time and with the accumulation of workload, the reaction arm may loosen, break, or experience other malfunctions. Once these malfunctions occur, the previously stable working state will be disrupted, potentially causing the electric tightening gun to fall from its working position. The fall of the electric tightening gun not only directly damages the equipment itself, increasing maintenance costs and downtime for the company, but more seriously, it may also cause accidental injury to nearby operators, leading to irreversible consequences. Therefore, designing a reaction arm anti-fall device that can effectively prevent the electric tightening gun from falling is urgently needed, and is of vital importance for improving work safety in industrial production and preventing various safety accidents. Utility Model Content

[0004] The purpose of this invention is to provide an anti-fall device for the reaction arm of an electric tightening gun to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-fall device for the reaction arm of an electric tightening gun, comprising a fixed cylinder and a sliding rod, wherein the sliding rod is movable inside the fixed cylinder and an anti-fall mechanism is installed on the outside of the fixed cylinder;

[0006] The fall arrestor includes a vertical plate, which is fixedly connected to the bottom of a fixed cylinder. A hydraulic telescopic rod is fixedly connected to the outer side of the vertical plate. A movable plate is fixedly connected to the output shaft of the hydraulic telescopic rod. Connecting shafts are fixedly connected to the inner sides of the movable plate. A clamping plate is provided on the outer surface of the connecting shaft. A movable groove is opened inside the clamping plate. A fixed seat is fixedly connected to the outer surface of the vertical plate. An anti-slip pad is provided at the end of the clamping plate. A connecting bracket is provided at the bottom of the movable plate. A detection component is provided inside the connecting bracket.

[0007] Preferably, a limiting rod is fixedly connected to the side of the upright plate, and a side plate is fixedly connected to the side of the limiting rod.

[0008] Preferably, the outer surface of the fixed cylinder is provided with a mounting bracket, the inner side of the mounting bracket is provided with a hook, a spring balancer is connected to the lower part of the hook, a hook is connected to the other end of the spring balancer, a connecting plate is connected to the outer surface of the hook, a connecting seat is connected to the other end of the connecting plate, an adjustment knob is provided on the side of the connecting seat, a tightening gun mounting sleeve is movably connected inside the connecting seat, an auxiliary connecting component is provided on the inner side of the other end of the mounting bracket located on the other end of the hook, and an auxiliary plate is provided below the auxiliary connecting component.

[0009] Preferably, the detection component includes an acceleration sensor and a displacement sensor.

[0010] Preferably, the anti-slip pad is made of rubber and has fine raised textures on its surface.

[0011] Preferably, the extension stroke of the hydraulic telescopic rod is adjustable, and the hydraulic telescopic rod is connected to the detection component through a control system.

[0012] Preferably, a threaded connection structure is provided between the adjustment knob and the connecting seat.

[0013] Preferably, the movable groove is arc-shaped, and its curvature matches the rotation trajectory of the connecting shaft.

[0014] Preferably, the connecting bracket is made of high-strength alloy material, which has sufficient strength and rigidity.

[0015] Preferably, the auxiliary connection assembly includes a guide wheel and a guide rail. The guide wheel is mounted on the side of the connection seat, and the guide rail is fixed on the mounting bracket. The guide wheel and the guide rail cooperate with each other.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The anti-fall device for the reaction arm of the electric tightening gun, through the installation of an anti-fall mechanism, and then through the anti-fall unit, through the detection component, detects abnormal sliding behavior of the slide rod, and then transmits a signal through the detection component, thereby controlling the hydraulic telescopic rod to push the movable plate towards the side plate, so that the connecting shaft moves inside the movable groove. Then, during the movement of the connecting shaft, it drives the clamping plate to rotate around the fixed seat, so that the clamping plate drives the anti-slip pad to move inward, so that the anti-slip pad contacts the outer surface of the slide rod and continuously squeezes inward, thereby providing buffer and auxiliary support for the slide rod, thus preventing the tightening gun from falling and thus preventing the tightening gun from being damaged.

[0018] 2. The electric tightening gun reaction arm anti-fall device is installed with a mounting bracket and connected to the connecting seat via a spring balancer. When using the device, the operator pulls the tightening gun mounting sleeve below the connecting seat, which in turn moves the sliding rod inside the fixed cylinder. At the same time, by setting auxiliary connecting components, the movement trajectory of the connecting seat can be further supported, thereby improving the anti-fall effect of the tightening gun. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a side view of the present invention.

[0021] Figure 3 This is a schematic diagram of the anti-fall mechanism of this utility model.

[0022] In the diagram: 1. Fixed cylinder; 2. Mounting bracket; 3. Slide rod; 4. Hook; 5. Spring balancer; 6. Lifting hook; 7. Connecting plate; 8. Connecting seat; 9. Adjusting knob; 10. Tightening gun mounting sleeve; 11. Auxiliary connecting assembly; 12. Auxiliary plate; 13. Vertical plate; 14. Hydraulic telescopic rod; 15. Movable plate; 16. Limiting rod; 17. Side plate; 18. Connecting shaft; 19. Clamping plate; 20. Movable groove; 21. Fixed seat; 22. Anti-slip pad; 23. Connecting bracket; 24. Detection assembly. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-3 This utility model provides a technical solution: an anti-fall device for the reaction arm of an electric tightening gun, including a fixed cylinder 1 and a sliding rod 3. The sliding rod 3 is movable inside the fixed cylinder 1, and an anti-fall mechanism is installed on the outside of the fixed cylinder 1.

[0025] The fall arrest mechanism includes a vertical plate 13, which is fixedly connected to the bottom of the fixed cylinder 1. A hydraulic telescopic rod 14 is fixedly connected to the outer side of the vertical plate 13. A movable plate 15 is fixedly connected to the output shaft of the hydraulic telescopic rod 14. Connecting shafts 18 are fixedly connected to the inner sides of the movable plate 15. A clamping plate 19 is provided on the outer surface of the connecting shaft 18. A movable groove 20 is opened inside the clamping plate 19. A fixed seat 21 is fixedly connected to the outer surface of the vertical plate 13. An anti-slip pad 22 is provided at the end of the clamping plate 19. A connecting bracket 23 is provided at the bottom of the movable plate 15. A detection component 24 is provided inside the connecting bracket 23. Thus, by installing the fall arrest mechanism, and then by the fall arrest unit, the detection... The detection component 24 detects abnormal sliding behavior of the slide rod 3, and then transmits a signal through the detection component 24 to control the starter 14, so that the hydraulic telescopic rod 14 pushes the movable plate 15 to move towards the side plate 17, so that the connecting shaft 18 moves inside the movable groove 20. Then, during the movement, the connecting shaft 18 drives the clamping plate 19 to rotate around the fixed seat 21, so that the clamping plate 19 drives the anti-slip pad 22 to move inward, so that the anti-slip pad 22 contacts the outer surface of the slide rod 3 and continuously squeezes inward, thereby providing buffer and auxiliary support for the slide rod 3, thus preventing the tightening gun from falling and thus preventing the tightening gun from being damaged.

[0026] A limiting rod 16 is fixedly connected to the side of the upright plate 13, and a side plate 17 is fixedly connected to the side of the limiting rod 16. By setting the limiting rod 16, the movement trajectory of the movable plate 15 is limited and assisted, so that the movable plate 15 can only move horizontally.

[0027] A mounting bracket 2 is provided on the outer surface of the fixed cylinder 1. A hook 4 is provided on the inner side of the mounting bracket 2. A spring balancer 5 is connected to the lower part of the hook 4. A hook 6 is connected to the other end of the spring balancer 5. A connecting plate 7 is connected to the outer surface of the hook 6. A connecting seat 8 is connected to the other end of the connecting plate 7. An adjustment knob 9 is provided on the side of the connecting seat 8. A tightening gun mounting sleeve 10 is movably connected inside the connecting seat 8. An auxiliary connecting component 11 is provided on the inner side of the other end of the mounting bracket 2, and an auxiliary plate 12 is provided below the auxiliary connecting component 11. Thus, by installing the mounting bracket 2 and connecting the connecting seat 8 through the spring balancer 5, the operator can pull the tightening gun mounting sleeve 10 below the connecting seat 8 when using the device, thereby moving the slide bar 3 inside the fixed cylinder 1. At the same time, by setting the auxiliary connecting component 11, the movement trajectory of the connecting seat 8 can be assisted and supported, further improving the anti-fall effect of the tightening gun.

[0028] The detection component 24 includes an acceleration sensor and a displacement sensor. The acceleration sensor is used to detect changes in the acceleration of the slide bar 3 to determine whether there is abnormal sliding. The displacement sensor is used to monitor the movement displacement of the slide bar 3. The two work together to improve the accuracy and reliability of detecting abnormal sliding behavior of the slide bar 3.

[0029] The anti-slip pad 22 is made of rubber and has fine raised textures on its surface to increase the friction with the outer surface of the slide bar 3. When clamping the slide bar 3, it can provide more effective cushioning and support to prevent the slide bar 3 from slipping.

[0030] The extension stroke of the hydraulic telescopic rod 14 is adjustable, and the hydraulic telescopic rod 14 is connected to the detection component 24 through a control system. The control system can accurately adjust the extension amount of the hydraulic telescopic rod 14 according to the signal transmitted by the detection component 24 to adapt to different degrees of abnormal sliding of the slide bar 3.

[0031] A threaded connection structure is provided between the adjustment knob 9 and the connecting seat 8. By rotating the adjustment knob 9, the position of the tightening gun mounting sleeve 10 in the connecting seat 8 can be adjusted to meet the installation requirements of tightening guns of different models and specifications.

[0032] The movable groove 20 is arc-shaped, and its curvature matches the rotation trajectory of the connecting shaft 18, making the connecting shaft 18 move more smoothly in the movable groove 20, and ensuring that the clamping plate 19 can flexibly rotate around the fixed base 21.

[0033] The connecting bracket 23 is made of high-strength alloy material, which has sufficient strength and rigidity to stably support the detection component 24 and maintain the stability of the structure when the fall arrest mechanism is activated.

[0034] The auxiliary connection assembly 11 includes a guide wheel and a guide rail. The guide wheel is installed on the side of the connecting seat 8, and the guide rail is fixed on the mounting bracket 2. The guide wheel and the guide rail cooperate to provide guidance and auxiliary support for the movement of the connecting seat 8, making the connecting seat 8 more stable during movement and reducing shaking.

[0035] Working principle: The device includes a fixed cylinder 1 and a sliding rod 3. The sliding rod 3 moves within the fixed cylinder 1, and an anti-fall mechanism is installed on the outside of the fixed cylinder 1. In the anti-fall mechanism, a vertical plate 13 is fixed to the bottom of the fixed cylinder 1. A hydraulic telescopic rod 14 on the outside of the vertical plate 13 is connected to a movable plate 15. Connecting shafts 18 on both sides of the movable plate 15 are connected to a clamping plate 19 with movable grooves 20. The fixed seat 21 on the vertical plate 13 allows the clamping plate 19 to rotate around it. The anti-slip pad 22 at the end of the clamping plate 19 is made of rubber and has fine raised texture. The connecting bracket 23 at the bottom of the movable plate 15 is made of high-strength alloy and contains a detection component 24 (including an acceleration sensor and a displacement sensor). When the detection component 24 detects abnormal sliding of the slide bar 3 (accelerometer detects changes in acceleration, displacement sensor monitors displacement), it transmits a signal to the control system. The control system precisely adjusts the adjustable-stroke hydraulic telescopic rod 14, pushing the movable plate 15 towards the side plate 17. The connecting shaft 18 moves within the movable groove 20, causing the clamping plate 19 to flip, making the anti-slip pad 22 contact and press against the outer surface of the slide bar 3, providing cushioning and auxiliary support to prevent the tightening gun from falling and being damaged. The limiting rod 16 on the side of the upright plate 13 and the side plate 17 limit the movable plate 15 to move only horizontally. The hook 4 on the inner side of the mounting bracket 2 outside the fixed cylinder 1 is connected to the hook 6, connecting plate 7, and connecting seat 8 via a spring balancer 5. The adjusting knob 9 on the side of the connecting seat 8 is threadedly connected to the connecting seat 8, adjusting the position of the tightening gun mounting sleeve 10. The guide wheel of the auxiliary connecting component 11 is mounted on the side of the connecting seat 8, and the guide rail is fixed on the mounting bracket 2. The two work together to assist in supporting the movement trajectory of the connecting seat 8. When the staff pulls the tightening gun mounting sleeve 10 under the connecting seat 8, the slide bar 3 can move inside the fixed cylinder 1, and the anti-fall effect of the tightening gun can be improved by the auxiliary connecting component 11.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An electric tightening gun counterforce arm anti-falling device, comprising a fixing cylinder (1) and a sliding rod (3), characterized in that: The slide bar (3) moves inside the fixed cylinder (1), and an anti-fall mechanism is installed on the outside of the fixed cylinder (1); The fall protection mechanism includes a vertical plate (13), which is fixedly connected to the bottom of the fixed cylinder (1). A hydraulic telescopic rod (14) is fixedly connected to the outside of the vertical plate (13). A movable plate (15) is fixedly connected to the output shaft of the hydraulic telescopic rod (14). A connecting shaft (18) is fixedly connected to the inside of both sides of the movable plate (15). A clamping plate (19) is provided on the outer surface of the connecting shaft (18). A movable groove (20) is opened inside the clamping plate (19). A fixed seat (21) is fixedly connected to the outer surface of the vertical plate (13). An anti-slip pad (22) is provided at the end of the clamping plate (19). A connecting bracket (23) is provided at the bottom of the movable plate (15). A detection component (24) is provided inside the connecting bracket (23).

2. The counterforce arm fall arrest device for a power nutrunner of claim 1, wherein: A limiting rod (16) is fixedly connected to the side of the upright plate (13), and a side plate (17) is fixedly connected to the side of the limiting rod (16).

3. The counterforce arm fall arrest device for a power nutrunner of claim 1, wherein: The outer surface of the fixed cylinder (1) is provided with a mounting bracket (2), the inner side of the mounting bracket (2) is provided with a hook (4), the lower part of the hook (4) is connected to a spring balancer (5), the other end of the spring balancer (5) is connected to a hook (6), the outer surface of the hook (6) is connected to a connecting plate (7), the other end of the connecting plate (7) is connected to a connecting seat (8), the side of the connecting seat (8) is provided with an adjustment knob (9), the inside of the connecting seat (8) is movably connected to a tightening gun mounting sleeve (10), the inner side of the mounting bracket (2) located at the other end of the hook (4) is provided with an auxiliary connecting component (11), and the lower part of the auxiliary connecting component (11) is provided with an auxiliary plate (12).

4. The counterforce arm fall arrest device for a power nutrunner of claim 1, wherein: The detection component (24) includes an acceleration sensor and a displacement sensor.

5. The counterforce arm fall arrest device for a power nutrunner of claim 1, wherein: The anti-slip mat (22) is made of rubber and has fine raised textures on its surface.

6. The counterforce arm fall arrest device for a power nutrunner of claim 1, wherein: The extension stroke of the hydraulic telescopic rod (14) is adjustable, and the hydraulic telescopic rod (14) is connected to the detection component (24) through a control system.

7. The anti-fall device for the reaction arm of an electric tightening gun according to claim 3, characterized in that: A threaded connection structure is provided between the adjustment knob (9) and the connecting seat (8).

8. The counterforce arm fall arrest device for a power nutrunner of claim 1, wherein: The movable groove (20) is arc-shaped, and its curvature matches the rotation trajectory of the connecting shaft (18).

9. The counterforce arm fall arrest device for a power nutrunner of claim 1, wherein: The connecting bracket (23) is made of high-strength alloy material and has sufficient strength and rigidity.

10. The counterforce arm fall arrest device for a power nutrunner of claim 3, wherein: The auxiliary connection assembly (11) includes a guide wheel and a guide rail. The guide wheel is installed on the side of the connecting seat (8), and the guide rail is fixed on the mounting bracket (2). The guide wheel and the guide rail cooperate with each other.

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