Antiskid chain tightener of safety belt

Abstract

The utility model discloses an antiskid chain tightener for a safety belt, which relates to the technical field of high-altitude operation protection and comprises a frame, an adjusting mechanism is movably mounted in the frame, and movable frames are slidably connected to two sides in the frame. By the adoption of the structure, the adjusting mechanism is arranged, the second motor can be started in the using period, the motor drives the lead screw to rotate in the frame, the lead screw rotates to drive the movable frame to slide in the frame based on the synergistic effect of the lead screw and the movable frame, and therefore the position of the tightening device in the frame can be flexibly changed; the device can be adjusted according to different construction working conditions and specific conditions of users, the position of the device can be flexibly adjusted while the antiskid chain can be efficiently wound no matter in complex and diverse construction environments or operators with different figures, it is guaranteed that the best use effect is achieved, and the adaptability and use convenience of the device are all-directionally improved.

Description

Technical Field

[0001] This utility model belongs to the field of high-altitude operation protection technology, and specifically relates to an anti-slip chain tensioner for safety belts. Background Technology

[0002] Safety is paramount when working at heights. Workers are in complex and dangerous environments, and the slightest mistake could lead to a fall that could endanger their lives. As a core piece of protective equipment, the performance of safety belts directly affects the safety of workers. Safety belt anti-slip chains can effectively prevent slippage caused by swaying or displacement of the worker's body, playing a key role in ensuring safety.

[0003] However, the safety belt anti-skid chains currently on the market generally have a serious problem: they lack a quick tightening mechanism. In emergency situations, such as when a worker suddenly loses his / her balance and his / her body sways unexpectedly, and he / she urgently needs to quickly tighten the anti-skid chain to stabilize his / her body, the existing anti-skid chains cannot respond quickly. The worker / she can only rely on manual adjustment, which not only wastes a lot of time and seriously affects the timely protective function of the anti-skid chain, but also greatly increases the safety risk of the worker / she in dangerous moments.

[0004] In daily high-altitude operations, this deficiency also brings many problems. When working at height for long periods of time and frequently adjusting their posture, workers need to constantly adjust the tightness of the anti-skid chains according to the actual situation. Due to the lack of a quick-tightening structure, they have to spend a lot of time and energy on manual operation, which not only increases physical exertion but also easily distracts workers due to frequent operation, further increasing safety hazards. In short, the existing safety belt anti-skid chains are obviously insufficient in terms of safety and ease of use due to the lack of a quick-tightening structure, so they need to be improved in design. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a seat belt anti-skid chain tensioner to solve the problem that the seat belt anti-skid chain cannot be tightened quickly during the application of the prior art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A seat belt anti-skid chain tensioner includes a frame, an adjustment mechanism is movably installed inside the frame, movable frames are slidably connected to both sides of the inside of the frame, a tensioning device is fixedly installed on the inner side of the movable frame, and a seat belt anti-skid chain is provided inside the tensioning device.

[0008] The tightening device includes a mounting frame, which is fixedly installed on the inner side of the movable frame. A first motor is fixedly installed on one side of the mounting frame. Turntables are rotatably connected to both sides of the inner side of the mounting frame. A winding frame is fixedly installed on the inner side of the turntable. A through hole is opened in the middle of the winding frame. The safety belt anti-skid chain is inserted into the through hole and wrapped around the outer surface of the winding frame.

[0009] As a preferred technical solution, the top view of the winding frame is I-shaped, and the corners of the outer surface of the winding frame are all rounded.

[0010] As a preferred technical solution, mounting frames are fixedly installed at the top and bottom of the frame, and mounting plates are provided at both outer ends of the mounting frames.

[0011] As a preferred technical solution, the adjustment mechanism includes a second motor, which is fixedly installed in the middle of the top side of the frame. The output end of the second motor is fixedly installed with a lead screw through the frame. The lead screw is rotatably connected to the middle of the inner side of the frame, and a movable bracket is threadedly connected to the outer surface of the lead screw.

[0012] As a preferred technical solution, a support rod is rotatably connected to the side of the frame away from the lead screw, and the movable frame on the side of the frame away from the lead screw is slidably connected to the outer surface of the support rod.

[0013] As a preferred technical solution, the mounting plate has mounting holes on its outer side, and the mounting holes are countersunk holes.

[0014] As a preferred technical solution, the two ends of the movable frame are convex, and the internal cross-sectional shape of the two sides of the frame is also convex.

[0015] In summary, the present invention has the following main advantages:

[0016] First, this device is equipped with a tightening mechanism so that when tightening is required, the first motor can be turned on. The motor's operation causes the turntable to rotate, which in turn drives the winding frame to rotate synchronously. At this time, the safety belt anti-skid chain is inserted into a specific hole. The winding frame continues to rotate, and the anti-skid chain is quickly wrapped around its outer surface. The anti-skid chain can be tightened quickly with just the simple operation of starting the motor. This process is simple and quick, and can respond rapidly in emergency situations, meeting the requirements for rapid tightening of anti-skid chains and significantly improving the overall operating efficiency of the device.

[0017] Secondly, by setting an adjustment mechanism, a second motor can be started during use. The motor drives the lead screw to rotate within the frame. Based on the synergistic effect of the lead screw and the movable frame, the rotation of the lead screw drives the movable frame to slide within the frame. In this way, the position of the tightening device within the frame can be flexibly changed, allowing the device to be adjusted according to different construction conditions and the specific circumstances of the user. Whether in complex and diverse construction environments or for workers of different heights, the device can efficiently wind up the anti-slip chain while flexibly adjusting its position to ensure optimal performance, thus comprehensively improving the adaptability and ease of use of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0020] Figure 3 This is a bottom view structural diagram of this utility model;

[0021] Figure 4 This is a schematic diagram of the tightening device structure of this utility model.

[0022] Reference numerals: 1. Frame; 2. Adjustment mechanism; 21. Second motor; 22. Lead screw; 23. Support rod; 3. Tensioning device; 31. Mounting frame; 32. First motor; 33. Turntable; 34. Winding frame; 35. Perforation; 4. Movable frame; 5. Safety belt anti-skid chain; 6. Mounting frame; 7. Mounting plate; 8. Mounting hole. Detailed Implementation

[0023] Example

[0024] refer to Figures 1 to 4 The anti-skid chain tensioner for a seat belt described in this embodiment includes a frame 1, an adjustment mechanism 2 is movably installed inside the frame 1, and movable frames 4 are slidably connected to both sides inside the frame 1. A tensioning device 3 is fixedly installed inside the movable frames 4, and a seat belt anti-skid chain 5 is provided inside the tensioning device 3.

[0025] The tightening device 3 includes a mounting frame 31, which is fixedly installed inside the movable frame 4. A first motor 32 is fixedly installed on one side of the mounting frame 31. Turntables 33 are rotatably connected to both sides of the interior of the mounting frame 31. A winding frame 34 is fixedly installed inside the turntables 33. A through hole 35 is provided in the middle of the winding frame 34. The safety belt anti-skid chain 5 is inserted into the through hole 35 and wrapped around the outer surface of the winding frame 34. When it is necessary to tighten the safety belt anti-skid chain 5 during use, the first motor 32 on one side of the mounting frame 31 is started. After the first motor 32 starts, its power is transmitted to the turntable 33 connected to it, driving the turntable 33. As the turntable 33 rotates, the winding frame 34 is fixedly installed inside the turntable 33. The rotation of the turntable 33 drives the winding frame 34 to rotate synchronously. At this time, the safety belt anti-slip chain 5, which is pre-inserted into the through hole 35 in the middle of the winding frame 34 and wrapped around its outer surface, is gradually wound and tightened as the winding frame 34 rotates. The adjustment mechanism 2 inside the frame 1 plays a role when it is necessary to adjust the position of the tightening device 3. By activating relevant components, such as the motor driving the lead screw 22 to rotate, the movable frame 4 on both sides inside the frame 1 is driven to slide, thereby driving the tightening device 3 installed inside the movable frame 4 to move to adapt to different working conditions and usage requirements.

[0026] refer to Figures 1-4 The retractor 34 has an I-shaped top view, with rounded corners on its outer surface. Mounting frames 6 are fixedly installed at the top and bottom of the frame 1, and mounting plates 7 are located at both ends of the outer sides of the mounting frames 6. The I-shaped design of the retractor 34 effectively prevents the safety belt anti-skid chain 5 from shifting or slipping during retracting, ensuring the anti-skid chain is tightly and orderly wound around the outer surface of the retractor 34, enhancing the stability and reliability of the retracting process. The rounded corners on the outer surface of the retractor 34 prevent sharp edges from causing wear or scratches to the safety belt anti-skid chain 5 during retracting and daily use, extending the service life of the anti-skid chain and reducing potential safety hazards caused by sharp edges. The mounting frames 6 fixedly installed at the top and bottom of the frame 1, and the mounting plates 7 located at both ends of the outer sides of the mounting frames 6, are mainly used to connect the entire anti-skid chain tensioner to external equipment or fixed structures. By opening suitable mounting holes 8 on the mounting plate 7 and using bolts, nuts and other connecting parts, the anti-slip chain tensioner can be firmly installed in locations such as aerial work platforms and specific safety protection facilities, providing a stable support foundation for its normal operation and ensuring the safe and reliable operation of the tensioner in different application scenarios.

[0027] refer to Figures 1-3The adjusting mechanism 2 includes a second motor 21, which is fixedly installed in the middle of the top side of the frame 1. A lead screw 22 is fixedly installed through the frame 1 at the output end of the second motor 21. The lead screw 22 is rotatably connected to the middle of the inner side of the frame 1. A movable frame 4 is threadedly connected to the outer surface of the lead screw 22. A support rod 23 is rotatably connected to the side of the frame 1 away from the lead screw 22. The movable frame 4 is slidably connected to the outer surface of the support rod 23 on the side of the frame 1 away from the lead screw 22. During use, when the adjusting mechanism 2 is working, the second motor 21 fixedly installed in the middle of the top side of the frame 1 is activated. The output end of the second motor 21 rotates, driving the lead screw 22, which passes through the frame 1 and is rotatably connected to it, to rotate inside the frame 1. The side rotates, and since one of the movable frames 4 is threaded to the outer surface of the lead screw 22, the rotation of the lead screw 22 drives the movable frame 4 to move linearly along the axial direction of the lead screw 22. On the other side of the frame 1 away from the lead screw 22, the rotatably connected support rod 23 plays a supporting and guiding role. The other movable frame 4 is slidably connected to the outer surface of the support rod 23. When the lead screw 22 drives one movable frame 4 to move, the other movable frame 4 is constrained by the support rod 23 and slides synchronously, thereby realizing the relative displacement of the two movable frames 4 inside the frame 1. Finally, it drives the tightening device 3 installed inside the movable frame 4 to move to the required position, completing the flexible adjustment of the position of the tightening device 3 to adapt to different working conditions and usage requirements.

[0028] refer to Figure 4 Mounting plate 7 has mounting holes 8 on its outer side. These mounting holes 8 are countersunk holes. The two ends of the movable frame 4 are convex, and the internal cross-sectional shape of both sides of the frame 1 is also convex. During use, the countersunk holes on the outer side of mounting plate 7 are mainly used to connect and fix the entire anti-skid chain tensioner. The countersunk hole design allows the heads of bolts and other connecting parts to be recessed into the holes. When bolts are used to install the tensioner onto the external structure through mounting holes 8, the surface is flat after installation, avoiding potential safety hazards caused by protruding bolt heads. It also ensures a tight fit between the tensioner and the mounting surface, enhancing installation stability. The two ends of the frame 4 are convex, and the internal cross-sectional shape of both sides of the frame 1 is also convex. This special design constitutes a sliding fit structure. The convex movable frame 4 can slide stably inside the convex cross-section of the frame 1. The convex structure restricts the degree of freedom of the movable frame 4 during the sliding process, so that it can only slide along the track direction inside the frame 1, preventing the movable frame 4 from shaking, deviating or falling off during the movement. This ensures the accuracy and reliability of the adjustment mechanism 2 when it drives the movable frame 4 and the tightening device 3 to move, and ensures the stable operation of the entire anti-slip chain tightener during the working process.

[0029] Operating principle and advantages: The tightening device 3 equipped in this device significantly improves the tightening efficiency of the seat belt anti-skid chain 5. When it is necessary to tighten the seat belt anti-skid chain 5, the first motor 32 is started. After the first motor 32 starts running, it drives the turntable 33 to rotate, which in turn drives the winding frame 34 connected to it to rotate synchronously. At this time, the seat belt anti-skid chain 5 is inserted into the hole 35. As the winding frame 34 rotates, the seat belt anti-skid chain 5 gradually wraps around the outer surface of the winding frame 34, realizing rapid winding. This process only requires starting the first motor 32 to quickly drive the winding frame 34 to rotate, completing the rapid tightening of the seat belt anti-skid chain 5. The operation is simple and quick, effectively meeting the need for rapid tightening of the seat belt anti-skid chain 5 in emergency situations, and improving the operating efficiency of the device.

[0030] The adjustment mechanism 2 provides the device with excellent flexibility and adaptability. During use, the second motor 21 is started, which drives the lead screw 22 to rotate inside the frame 1. Due to the cooperation between the lead screw 22 and the movable frame 4, the rotation of the lead screw 22 drives the movable frame 4 to slide inside the frame 1. Through this operation, the position of the tightening device 3 inside the frame 1 can be flexibly adjusted, allowing the device to be flexibly adjusted according to different working conditions and user needs. Whether facing diverse construction environments or users of different sizes, this device can quickly reel in the safety belt anti-skid chain 5 while flexibly adjusting its position to ensure the best performance. This not only improves the adaptability of the device but also further enhances its ease of use, meeting the construction operation needs in various complex scenarios.

Claims

1. A seatbelt anti-skid chain tensioner, comprising a frame (1), characterized in that: An adjustment mechanism (2) is movably installed inside the frame (1). Movable frames (4) are slidably connected to both sides inside the frame (1). A tightening device (3) is fixedly installed on the inner side of the movable frame (4). A safety belt anti-skid chain (5) is provided inside the tightening device (3). The tightening device (3) includes a mounting frame (31), which is fixedly installed on the inner side of the movable frame (4). A first motor (32) is fixedly installed on one side of the mounting frame (31). Turntables (33) are rotatably connected to both sides of the interior of the mounting frame (31). A winding frame (34) is fixedly installed on the inner side of the turntable (33). A through hole (35) is provided in the middle of the winding frame (34). The safety belt anti-skid chain (5) is inserted into the through hole (35) and wrapped around the outer surface of the winding frame (34).

2. The anti-skid chain tensioner for a seat belt according to claim 1, characterized in that: The top view of the winding frame (34) is I-shaped, and the corners of the outer surface of the winding frame (34) are all rounded.

3. The anti-skid chain tensioner for a seat belt according to claim 1, characterized in that: The top and bottom of the frame (1) are fixedly installed with mounting frames (6), and the outer ends of the mounting frames (6) are provided with mounting plates (7).

4. The anti-skid chain tensioner for a seat belt according to claim 1, characterized in that: The adjustment mechanism (2) includes a second motor (21), which is fixedly installed in the middle of the top side of the frame (1). The output end of the second motor (21) is fixedly installed with a lead screw (22) through the frame (1). The lead screw (22) is rotatably connected to the middle of the inner side of the frame (1). A movable frame (4) is threadedly connected to the outer surface of the lead screw (22).

5. A seatbelt anti-skid chain tensioner according to claim 4, characterized in that: A support rod (23) is rotatably connected to the side of the frame (1) away from the lead screw (22), and a movable frame (4) on the side of the frame (1) away from the lead screw (22) is slidably connected to the outer surface of the support rod (23).

6. The anti-skid chain tensioner for a seat belt according to claim 3, characterized in that: The mounting plate (7) has a mounting hole (8) on its outer side, and the mounting hole (8) is a countersunk hole.

7. A safety belt anti-skid chain tensioner according to claim 1, characterized in that: The two ends of the movable frame (4) are convex, and the internal cross-sectional shape of the two sides of the frame (1) is also convex.

Images