Anti-slip safety belt

Abstract

This invention provides an anti-slip safety belt for poles, comprising: a wearing and fixing strap with a connecting portion; an adjustment mechanism fixedly mounted on the wearing and fixing strap, the adjustment mechanism including a rotating drum and a driving component; a first end of a pole fixing strap wound around the rotating drum, the extension length of the pole fixing strap being adjustable when the rotating drum rotates; a second end of the pole fixing strap being detachably connected to the connecting portion; a pressure detection device detecting the pressure between the pole fixing strap and the pole; when the detection result of the pressure detection device is greater than or equal to a preset pressure threshold, a control device controls the driving component to stop working; when the detection result of the pressure detection device is less than the preset pressure threshold, the control device controls the driving component to work, causing the rotating drum to rotate and shorten the extension length of the pole fixing strap. The technical solution provided by this application can solve the problem in related technologies where the pole-holding side of the safety belt slips due to insufficient force when the waist strength is relaxed due to the working posture.

Description

Technical Field

[0001] This invention relates to the field of high-altitude operations technology, and more specifically, to a safety belt for preventing slippage and falling off a pole. Background Technology

[0002] Safety belts are protective equipment used by workers to prevent falls and injuries when working at heights. During pole climbing, workers use pole climbing buckles and safety belts to climb. Once they reach the working height, workers only need to lean back and maintain a certain angle with the pole so that the safety belt around their waist is under stress. With the help of the buckles, they can achieve a fixed fall prevention effect.

[0003] However, workers' limbs move frequently when working at heights. When the working posture causes the waist to relax, the force on the pole-holding side of the safety belt is insufficient, and the safety belt will slip. Workers need to lift the safety belt up again to tighten it. The whole process of slipping and straightening the safety belt frequently affects the worker's concentration and work efficiency. If negligence occurs, it may lead to personal safety accidents. Summary of the Invention

[0004] This invention provides an anti-slip safety belt for poles to solve the problem in related technologies where the safety belt slips due to insufficient force on the pole-holding side when the waist is relaxed due to the working posture.

[0005] This invention provides a safety belt for preventing pole slippage. The safety belt includes: a wearing and fixing strap with a connecting portion; an adjusting mechanism fixedly mounted on the wearing and fixing strap, the adjusting mechanism including a rotating drum and a driving component for driving the rotating drum to rotate; a pole fixing strap, the first end of which is wound around the rotating drum, and the extension length of the pole fixing strap can be adjusted when the rotating drum rotates, the second end of which is detachably connected to the connecting portion; a pressure detection device disposed in the middle of the pole fixing strap to detect the pressure between the pole fixing strap and the pole; and a control component connected to the pressure detection device and the driving component respectively, to control the driving component according to the detection result of the pressure detection device to drive the rotating drum to rotate. Specifically, when the detection result of the pressure detection device is greater than or equal to a preset pressure threshold, the control component controls the driving component to stop working; when the detection result of the pressure detection device is less than the preset pressure threshold, the control component controls the driving component to work, so that the rotating drum rotates to shorten the extension length of the pole fixing strap.

[0006] Furthermore, the pressure detection element includes: a mounting housing having a strapping channel through which the pole fixing strap passes; a buffer pad disposed on the side of the mounting housing facing the pole; and a first detection element disposed inside the mounting housing and detecting the deformation of the buffer pad.

[0007] Furthermore, the buffer pad has a ring structure, and the inner side wall of the ring structure and the side wall of the mounting shell facing the pole form an adsorption cavity. The mounting shell has a suction port that communicates with the adsorption cavity. The anti-slip pole safety belt also includes a vacuuming component installed inside the mounting shell and communicating with the suction port.

[0008] Furthermore, the anti-slip safety belt also includes a switch valve installed inside the mounting housing. The switch valve has an open state that connects the adsorption chamber to the outside world and a closed state that isolates the adsorption chamber from the outside world.

[0009] Furthermore, the regulating mechanism includes: a release button, which is signal-connected to the switching valve; when the release button is pressed, the switching valve switches to the open state; when the release button is released, the switching valve switches to the closed state; a limit member, which has a clearance state that allows the drum to rotate and a limit state that restricts the drum's rotation; a stroke detection member, which can detect the rotation stroke of the drum; and a control member, which is signal-connected to both the stroke detection member and the limit member; when the stroke detection member detects that the drum's rotation stroke has reached a preset maximum stroke, the control member controls the limit member to switch to the limit state; and when the stroke detection member detects that the drum's rotation stroke has not reached the preset maximum stroke, the limit member switches to the clearance state.

[0010] Furthermore, the adjustment mechanism also includes: a transmission component, movably disposed between the drive component and the rotating drum, the transmission component having a driving position and a disengaged position; when the transmission component is in the driving position, the drive component and the transmission component are driven connected, and the transmission component and the rotating drum are driven connected; when the transmission component is in the disengaged position, the transmission component is separated from both the drive component and the rotating drum; and an adjustment button, the adjustment button being driven connected to the transmission component; when the adjustment button is pressed, the transmission component moves to the disengaged position; when the adjustment button is released, the transmission component moves to the driving position.

[0011] Furthermore, the pressure detection element also includes a second detection element, which is disposed inside the mounting housing and communicates with the suction port to detect the negative pressure in the adsorption chamber.

[0012] Furthermore, the mounting housing includes a housing and two threading rings, which are respectively disposed at both ends of the housing. The inner holes of the two threading rings are connected to form a threading channel. The pole fixing strap passes through the inner holes of the two threading rings. A buffer pad is disposed on one side of the housing, and the pole fixing strap is wrapped around the side of the housing opposite to the buffer pad. The first detection element is disposed inside the housing. The pressure detection element also includes a buffer layer, which is filled between the mounting housing and the first detection element. The buffer pad is detachably disposed on the mounting housing.

[0013] Furthermore, the adjustment mechanism also includes: a mounting base and a pressure band member, fixedly mounted on the wearing and fixing strap; the rotating drum and the driving component are both mounted within the mounting base; the pressure band member is movably mounted on the mounting base; the pressure band member has a locked state connected to the wearing and fixing strap and an unlocked state separated from the wearing and fixing strap; and / or, a switch button; the driving component has an energized state and an de-energized state; the pressure detection component also has an energized state and a de-energized state; the switch button is signal-connected to the driving component and the pressure detection component respectively; when the switch button is pressed and held, both the driving component and the pressure detection component switch to the energized state; when the switch button is double-clicked, both the driving component and the pressure detection component switch to the de-energized state.

[0014] Furthermore, the pole fixing strap includes a single-layer strap, a double-layer strap, and an adjusting buckle. The first end of the single-layer strap is connected to the adjusting mechanism, the first end of the double-layer strap is connected to the second end of the single-layer strap, the middle part of the double-layer strap is detachably connected to the connecting part, the adjusting buckle is slidably sleeved on the single-layer strap, and the adjusting buckle is connected to the second end of the double-layer strap; and / or, the connecting part includes a retaining ring, which is fixedly connected to the wearing fixing strap, and the second end of the pole fixing strap is provided with a buckle, which is detachably connected to the retaining ring.

[0015] Applying the technical solution of this invention, the anti-slip pole safety belt includes a wearing and fixing strap, an adjustment mechanism, a pole fixing strap, a pressure detection device, and a control device. The wearing and fixing strap is worn around the worker's waist. The second end of the pole fixing strap is wrapped around the pole from the side away from the worker and connected to a connecting part. During high-altitude work, the pressure detection device detects the force between the pole fixing strap and the pole. If the worker's posture causes a relaxation of the waist force, and the pressure detection device detects that the force between the pole fixing strap and the pole is less than a preset pressure threshold, the control device controls the drive component to rotate, thereby shortening the pole fixing strap. The extension length of the fixed belt is adjusted to tighten the pole fixing belt, thereby increasing the force between the pole fixing belt and the pole. If the pressure detection device detects that the force between the pole fixing belt and the pole is greater than or equal to the preset pressure threshold, the control device controls the drive device to stop working, and the drum stops rotating. This fixes the extension length of the pole fixing belt, preventing insufficient force between the pole fixing belt and the pole, preventing the pole fixing belt from slipping relative to the pole, and eliminating the need for manual operation of the pole fixing belt by the operator. This avoids the operator having to frequently straighten the pole fixing belt during high-altitude operations, improving the operator's concentration and work efficiency, and preventing oversights or personal safety accidents. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1A schematic diagram of the structure of the anti-slip safety belt for the guardrail provided according to an embodiment of the present invention is shown;

[0018] Figure 2 A cross-sectional view of the pressure detection element of the anti-slip pole safety belt and the pole fixing belt provided according to an embodiment of the present invention is shown;

[0019] Figure 3 A schematic diagram of the structure of the adjustment mechanism for the anti-slip safety belt of the guardrail provided according to an embodiment of the present invention is shown;

[0020] Figure 4 A cross-sectional view of the adjustment mechanism of the anti-slip pole safety belt and the pole fixing belt provided according to an embodiment of the present invention is shown;

[0021] Figure 5 A schematic diagram of the pressure band member of the anti-slip safety belt for a guardrail provided according to an embodiment of the present invention is shown.

[0022] The above figures include the following reference numerals:

[0023] 10. Wearing and securing straps; 11. Connecting parts;

[0024] 20. Adjustment mechanism; 21. Rotary drum; 22. Drive component; 23. Release button; 25. Adjustment button; 26. Limiting component; 27. Stroke detection component; 281. Mounting base; 2811. Threading component; 282. Pressing component; 2821. Needle;

[0025] 30. Pole fixing strap; 31. Single-layer strap; 32. Double-layer strap; 33. Adjusting buckle; 34. Clip;

[0026] 40. Pressure detection element; 41. Mounting housing; 411. Suction port; 412. Housing; 413. Belt loop; 42. Buffer pad; 43. First detection element; 44. Adsorption chamber; 45. Second detection element; 46. Buffer layer. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1 to 5As shown, this embodiment of the invention provides an anti-slip safety belt for a pole. The anti-slip safety belt includes a wearing and fixing strap 10, an adjustment mechanism 20, a pole fixing strap 30, a pressure detection element 40, and a control element. The wearing and fixing strap 10 has a connecting part 11. The adjustment mechanism 20 is fixedly mounted on the wearing and fixing strap 10. The adjustment mechanism 20 includes a rotating drum 21 and a driving element 22 for driving the rotating drum 21 to rotate. The first end of the pole fixing strap 30 is wound around the rotating drum 21. When the rotating drum 21 rotates, the extension length of the pole fixing strap 30 can be adjusted. The second end of the pole fixing strap 30 is detachably connected to the connecting part 11. A pressure detection element 40 is disposed in the middle of the pole fixing band 30 to detect the pressure between the pole fixing band 30 and the pole. A control element is connected to the pressure detection element 40 and the drive element 22 respectively to control the drive element 22 according to the detection result of the pressure detection element 40, so as to drive the rotating drum 21 to rotate. When the detection result of the pressure detection element 40 is greater than or equal to the preset pressure threshold, the control element controls the drive element 22 to stop working. When the detection result of the pressure detection element 40 is less than the preset pressure threshold, the control element controls the drive element 22 to work, so that the rotating drum 21 rotates to shorten the extension length of the pole fixing band 30.

[0029] The anti-slip safety belt for poles provided in this embodiment includes a wearing and fixing strap 10, an adjustment mechanism 20, a pole fixing strap 30, a pressure detection device 40, and a control device. The wearing and fixing strap 10 is placed around the worker's waist. The second end of the pole fixing strap 30 is wrapped around the pole from the side away from the worker, and connected to the connecting part 11. During high-altitude work, the pressure detection device 40 detects the force between the pole fixing strap 30 and the pole. If the worker's posture causes a relaxation of the waist force, and the pressure detection device 40 detects that the force between the pole fixing strap 30 and the pole is less than a preset pressure threshold, the control device controls the drive component 22 to operate, causing the rotating drum 21 to rotate. The extension length of the pole fixing strap 30 is shortened, thereby tightening the pole fixing strap 30 to increase the force between the pole fixing strap 30 and the pole. If the pressure detection device 40 detects that the force between the pole fixing strap 30 and the pole is greater than or equal to the preset pressure threshold, the control device controls the drive device 22 to stop working, and the rotating drum 21 stops rotating, so as to fix the extension length of the pole fixing strap 30, avoid insufficient force between the pole fixing strap 30 and the pole, avoid the pole fixing strap 30 slipping relative to the pole, and eliminate the need for operators to manually operate the pole fixing strap 30, thus avoiding the need for operators to frequently straighten the pole fixing strap 30 during high-altitude operations, improving the operators' concentration and work efficiency, and preventing oversights or personal safety accidents.

[0030] like Figure 2As shown, the pressure detection element 40 includes a mounting shell 41, a buffer pad 42, and a first detection element 43. The mounting shell 41 has a strap-through channel through which the pole fixing strap 30 passes. The buffer pad 42 is disposed on the side of the mounting shell 41 facing the pole. The first detection element 43 is disposed inside the mounting shell 41 and detects the deformation of the buffer pad 42. During high-altitude operations, the buffer pad 42 deforms under the force between the pole fixing strap 30 and the pole. When the force between the pole fixing strap 30 and the pole is a preset pressure threshold, the deformation of the buffer pad 42 is a preset deformation threshold. During high-altitude operations, the first detection element 43 detects the deformation of the buffer pad 42 to indirectly detect the force between the pole fixing strap 30 and the pole. If the worker's posture causes the waist to relax, the first detection element 43 detects that the deformation of the buffer pad 42 is less than the preset deformation threshold, and the control element controls the drive element 22 to work. If the first detection element 43 detects that the deformation of the buffer pad 42 is greater than or equal to the preset deformation threshold, the control element controls the drive element 22 to stop working.

[0031] Specifically, the cushioning pad 42 is made of silicone.

[0032] like Figure 2 As shown, the buffer pad 42 has an annular structure. The inner sidewall of the annular structure and the sidewall of the mounting shell 41 facing the pole form an adsorption cavity 44. The mounting shell 41 has a suction port 411 that communicates with the adsorption cavity 44. The anti-slip pole safety belt also includes a vacuuming component disposed inside the mounting shell 41 and communicating with the suction port 411. When the force between the pole fixing strap 30 and the pole is greater than or equal to a preset pressure threshold, the outer sidewall of the pole seals the opening of the annular structure facing the pole. At this time, the vacuuming component can evacuate the adsorption cavity 44 through the suction port 411, so that the pressure detection element 40 is adsorbed and fixed on the pole.

[0033] like Figure 1 As shown, the anti-slip pole safety belt also includes a switch valve installed in the mounting housing 41. The switch valve has an open state that connects the adsorption chamber 44 to the outside world and a closed state that isolates the adsorption chamber 44 from the outside world. When it is necessary to remove the pressure detection element 40 from the pole, the switch valve is switched to the open state, causing the adsorption chamber 44 to depressurize and releasing the adsorption between the pressure detection element 40 and the pole. When the switch valve is switched to the closed state, and the force between the pole fixing strap 30 and the pole is greater than or equal to a preset pressure threshold, a vacuum device can be used to evacuate the adsorption chamber 44, so that the pressure detection element 40 is adsorbed and fixed on the pole.

[0034] The switching valve can be controlled manually or by signal.

[0035] like Figure 1As shown, the regulating mechanism 20 includes a release button 23, a limit member 26, and a stroke detection member 27. The release button 23 is signal-connected to the switching valve. When the release button 23 is pressed, the switching valve switches to the open state. When the release button 23 is released, the switching valve switches to the closed state. The limit member 26 has a clearance state that allows the rotating drum 21 to rotate and a limit state that restricts the rotation of the rotating drum 21. The stroke detection member 27 can detect the rotation stroke of the rotating drum 21. The control member is signal-connected to the stroke detection member 27 and the limit member 26 respectively. When the stroke detection member 27 detects that the rotation stroke of the rotating drum 21 has reached the preset maximum stroke, the control member controls the limit member 26 to switch to the limit state. When the stroke detection member 27 detects that the rotation stroke of the rotating drum 21 has not reached the preset maximum stroke, the limit member 26 switches to the clearance state. Pressing the release button 23 switches the switch valve to the open state, releasing the adsorption between the pressure detection element 40 and the pole. The operator climbs up and down the pole. When the operator reaches the working height, the release button 23 is released, switching the switch valve to the closed state. The operator leans back relative to the pole, so that the force between the pole fixing strap 30 and the pole is greater than or equal to the preset pressure threshold. The vacuuming device can be used to evacuate the adsorption chamber 44, so that the pressure detection element 40 is re-adsorbed and fixed on the pole.

[0036] like Figure 1 As shown, the adjustment mechanism 20 also includes a transmission component and an adjustment button 25. The transmission component is movably disposed between the drive component 22 and the rotating drum 21. The transmission component has a transmission position and a separation position. When the transmission component is in the transmission position, the drive component 22 and the transmission component are driven connected, and the transmission component and the rotating drum 21 are driven connected. When the transmission component is in the separation position, the transmission component is separated from the drive component 22 and the rotating drum 21 respectively. The adjustment button 25 is driven connected to the transmission component. When the adjustment button 25 is pressed, the transmission component moves to the separation position. When the adjustment button 25 is released, the transmission component moves to the transmission position. When workers are climbing up and down the pole, the force between the pole fixing strap 30 and the pole is less than the preset pressure threshold. After the rotating drum 21 rotates to the preset maximum stroke, the limiting member 26 restricts the rotation of the rotating drum 21 to prevent the pole fixing strap 30 from continuing to tighten and affecting the climbing. When the workers reach the working height, they release the release button 23 and press the adjustment button 25. The transmission component moves to the separation position, and the workers lean back relative to the pole to adjust their posture. The rotating drum 21 reverses so that the pole fixing strap 30 extends relative to the adjustment mechanism 20. When the posture is adjusted to the correct position, the adjustment button 25 is released, and the transmission component moves to the transmission position. The drive component 22 can drive the rotating drum 21 to rotate through the transmission component to tighten the pole fixing strap 30.

[0037] like Figure 1As shown, the pressure detection element 40 also includes a second detection element 45, which is disposed inside the mounting housing 41 and communicates with the suction port 411 to detect the negative pressure in the adsorption chamber 44. When the force between the pole fixing strap 30 and the pole is greater than or equal to the preset pressure threshold, the opening of the annular structure on the outer wall of the pole facing the pole is sealed. At this time, the vacuuming component can evacuate the adsorption chamber 44 through the suction port 411. When the force between the pole fixing strap 30 and the pole is less than the preset pressure threshold, the opening of the annular structure on the outer wall of the pole cannot be sealed, and the vacuuming component cannot evacuate the adsorption chamber 44. Thus, during high-altitude operations, the negative pressure in the adsorption chamber 44 is detected by the second detection component 45 to indirectly detect the force between the pole fixing strap 30 and the pole. When the vacuuming component is working, if the posture of the operator causes the waist to relax, the second detection component 45 detects that the air pressure in the adsorption chamber 44 is less than the negative pressure threshold, and the control component controls the drive component 22 to work. If the second detection component 45 detects that the air pressure in the adsorption chamber 44 is greater than or equal to the negative pressure threshold, the control component controls the drive component 22 to stop working.

[0038] like Figure 1 As shown, the mounting housing 41 includes a housing 412 and two threading rings 413. The two threading rings 413 are respectively disposed at both ends of the housing 412, and their inner holes are connected to form a threading channel. The pole fixing strap 30 passes through the inner holes of the two threading rings 413. A buffer pad 42 is disposed on one side of the housing 412, and the pole fixing strap 30 is wrapped around the side of the housing 412 away from the buffer pad 42. The first detection element 43 is disposed inside the housing 412. With the above structure, by sequentially threading the pole fixing strap 30 through the two threading rings 413 and wrapping the pole fixing strap 30 around the side of the housing 412 away from the buffer pad 42, the mounting housing 41 can be easily and quickly installed on the pole fixing strap 30.

[0039] Furthermore, the mounting housing 41 is in a slidable and adjustable position on the pole fixing strap 30.

[0040] like Figure 1 As shown, the pressure detection element 40 also includes a buffer layer 46, which is filled between the mounting shell 41 and the first detection element 43. The buffer layer 46 provides cushioning protection for the first detection element 43, preventing impact damage between the first detection element 43 and the mounting shell 41. Specifically, the buffer layer 46 is made of polypropylene foam as the cushioning material.

[0041] In this embodiment, the buffer pad 42 is detachably mounted on the mounting housing 41. When the buffer pad 42 ages due to long-term use or the power supply pole wears out, the buffer pad 42 can be removed and installed for easy maintenance.

[0042] Specifically, a locking block is provided on the side of the buffer pad 42 facing the mounting shell 41, and a locking groove is provided on the side of the mounting shell 41 facing the buffer pad 42. The locking block and the locking groove engage with each other, which facilitates quick and easy installation and removal of the buffer pad 42, and ensures that the buffer pad 42 can be reliably installed on the mounting shell 41, preventing the buffer pad 42 from falling off during normal use.

[0043] like Figure 1 As shown, the adjustment mechanism 20 also includes a mounting base 281 and a pressure band member 282. The mounting base 281 is fixedly mounted on the wearing fixing strap 10. The rotating drum 21 and the driving member 22 are both mounted inside the mounting base 281. The pressure band member 282 is movably mounted on the mounting base 281. The pressure band member 282 has a locked state connected to the wearing fixing strap 10 and an unlocked state separated from the wearing fixing strap 10.

[0044] Specifically, the mounting base 281 has a strap threading member 2811, the wearing and fixing strap 10 is threaded through the strap threading member 2811, and the pressing member 282 has a pin 2811. When the pressing member 282 is in the locked state, the pin 2811 is threaded through the wearing and fixing strap 10.

[0045] like Figure 1 As shown, the adjustment mechanism 20 also includes a switch button. The drive unit 22 has an on-state and an off-state, and the pressure detection unit 40 also has an on-state and an off-state. The switch button is connected to the drive unit 22 and the pressure detection unit 40 respectively. When the switch button is pressed and held, both the drive unit 22 and the pressure detection unit 40 switch to the on-state. When the switch button is double-clicked, both the drive unit 22 and the pressure detection unit 40 switch to the off-state.

[0046] like Figure 1 As shown, the adjustment mechanism 20 also includes a pole fixing belt 30 comprising a single-layer belt 31, a double-layer belt 32, and an adjustment buckle 33. The first end of the single-layer belt 31 is connected to the adjustment mechanism 20, the first end of the double-layer belt 32 is connected to the second end of the single-layer belt 31, the middle part of the double-layer belt 32 is detachably connected to the connecting part 11, and the adjustment buckle 33 is slidably sleeved on the single-layer belt 31 and connected to the second end of the double-layer belt 32. Because the adjustment mechanism 20 has a stroke detection element 27 and a limiting element 26, the adjustment mechanism 20 can only adjust the extension length of the pole fixing belt 30 within a range less than or equal to the preset maximum stroke. The preset maximum stroke is set as a parameter based on the changes in the posture of the operator. By sliding the adjustment buckle 33 on the single-layer belt 31, the length of the pole fixing belt 30 can be adjusted within a range greater than the preset maximum stroke to meet the usage requirements of poles of different diameters and adjust the distance between the operator and the pole.

[0047] like Figure 1As shown, the adjustment mechanism 20 also includes a connecting part 11 with a retaining ring, which is fixedly connected to the wearing and fixing strap 10. The second end of the pole fixing strap 30 is provided with a buckle 34, which is detachably connected to the retaining ring. By changing the connection state between the buckle 34 and the retaining ring, the connection state between the second end of the wearing and fixing strap 10 and the connecting part 11 can be changed, which has the advantages of simple structure, easy operation and low cost.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0050] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0051] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0052] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A safety belt for preventing slippage on a fence pole, characterized in that, The anti-slip safety belt for the guardrail includes: Wearing fixing strap (10) has a connecting part (11); An adjustment mechanism (20) is fixedly mounted on the wearing fixing strap (10). The adjustment mechanism (20) includes a rotating drum (21) and a driving member (22) for driving the rotating drum (21) to rotate. The pole fixing strap (30) has its first end wrapped around the rotating drum (21). When the rotating drum (21) rotates, the extension length of the pole fixing strap (30) can be adjusted. The second end of the pole fixing strap (30) is detachably connected to the connecting part (11). A pressure detection element (40) is disposed in the middle of the pole fixing band (30) to detect the pressure between the pole fixing band (30) and the pole; The control unit is connected to the pressure detection unit (40) and the drive unit (22) respectively, so as to control the drive unit (22) according to the detection result of the pressure detection unit (40) to drive the rotating drum (21) to rotate. When the detection result of the pressure detection unit (40) is greater than or equal to the preset pressure threshold, the control unit controls the drive unit (22) to stop working. When the detection result of the pressure detection unit (40) is less than the preset pressure threshold, the control unit controls the drive unit (22) to work so that the rotating drum (21) rotates to shorten the extension length of the pole fixing belt (30). The pressure sensing element (40) includes: The mounting housing (41) has a strapping channel through which the pole fixing strap (30) passes; A buffer pad (42) is provided on the side of the mounting housing (41) facing the pole; The first detection element (43) is set inside the mounting shell (41) and detects the deformation of the buffer pad (42); The buffer pad (42) is an annular structure. The inner sidewall of the annular structure and the sidewall of the mounting shell (41) facing the pole are arranged to form an adsorption cavity (44). The mounting shell (41) has a suction port (411) that communicates with the adsorption cavity (44). The anti-slip pole safety belt also includes a vacuuming component that is set inside the mounting shell (41) and communicates with the suction port (411).

2. The anti-slip safety belt for the guardrail according to claim 1, characterized in that, The anti-slip safety belt also includes a switch valve installed in the mounting housing (41), the switch valve having an open state that connects the adsorption chamber (44) to the outside world and a closed state that isolates the adsorption chamber (44) from the outside world.

3. The anti-slip safety belt for the guardrail according to claim 2, characterized in that, The adjustment mechanism (20) includes: Release button (23) is connected to the switch valve signal. When the release button (23) is pressed, the switch valve switches to the open state. When the release button (23) is released, the switch valve switches to the closed state. The limiting member (26) has a clearance state that allows the rotating drum (21) to rotate and a limiting state that restricts the rotation of the rotating drum (21); The stroke detection component (27) can detect the rotation stroke of the drum (21). The control component is connected to the stroke detection component (27) and the limit component (26) respectively. When the stroke detection component (27) detects that the rotation stroke of the drum (21) reaches the preset maximum stroke, the control component controls the limit component (26) to switch to the limit state. When the stroke detection component (27) detects that the rotation stroke of the drum (21) does not reach the preset maximum stroke, the limit component (26) switches to the avoidance state.

4. The anti-slip safety belt for the guardrail according to claim 3, characterized in that, The adjustment mechanism (20) further includes: A transmission component is movably disposed between the drive component (22) and the rotating drum (21). The transmission component has a transmission position and a separation position. When the transmission component is in the transmission position, the drive component (22) and the transmission component are driven connected, and the transmission component and the rotating drum (21) are driven connected. When the transmission component is in the separation position, the transmission component is separated from the drive component (22) and the rotating drum (21) respectively. Adjustment button (25) is driven to the transmission component. When the adjustment button (25) is pressed, the transmission component moves to the separation position. When the adjustment button (25) is released, the transmission component moves to the transmission position.

5. The anti-slip safety belt for the guardrail according to claim 1, characterized in that, The pressure sensing element (40) also includes: The second detection element (45) is disposed inside the mounting shell (41) and communicates with the suction port (411) to detect the negative pressure in the adsorption chamber (44).

6. The anti-slip safety belt for the guardrail according to claim 1, characterized in that, The mounting housing (41) includes a housing (412) and two threading rings (413). The two threading rings (413) are respectively disposed at both ends of the housing (412). The inner holes of the two threading rings (413) are connected to form the threading channel. The pole fixing strap (30) passes through the inner holes of the two threading rings (413). The buffer pad (42) is disposed on one side of the housing (412). The pole fixing strap (30) is wrapped around the side of the housing (412) away from the buffer pad (42). The first detection element (43) is disposed inside the housing (412). The pressure detection element (40) further includes a buffer layer (46) which fills the space between the mounting housing (41) and the first detection element (43); The buffer pad (42) is detachably mounted on the mounting housing (41).

7. The anti-slip safety belt for the guardrail according to claim 1, characterized in that, The adjustment mechanism (20) further includes: A mounting base (281) and a pressure band member (282) are fixedly disposed on the wearing fastening strap (10). The rotating drum (21) and the driving member (22) are both disposed within the mounting base (281). The pressure band member (282) is movably disposed on the mounting base (281). The pressure band member (282) has a locked state connected to the wearing fastening strap (10) and an unlocked state separated from the wearing fastening strap (10); and / or, The switch button has a power-on state and a power-off state. The pressure detection element (40) also has a power-on state and a power-off state. The switch button is signal-connected to the power-on element (22) and the pressure detection element (40) respectively. When the switch button is pressed for a long time, both the power-on element (22) and the pressure detection element (40) switch to the power-on state. When the switch button is double-clicked, both the power-on element (22) and the pressure detection element (40) switch to the power-off state.

8. The anti-slip safety belt for the guardrail according to claim 1, characterized in that, The pole fixing strap (30) includes a single-layer strap (31), a double-layer strap (32), and an adjusting buckle (33). The first end of the single-layer strap (31) is connected to the adjusting mechanism (20), the first end of the double-layer strap (32) is connected to the second end of the single-layer strap (31), the middle part of the double-layer strap (32) is detachably connected to the connecting part (11), and the adjusting buckle (33) is slidably sleeved on the single-layer strap (31) and connected to the second end of the double-layer strap (32); and / or, The connecting part (11) includes a retaining ring, which is fixedly connected to the wearing fixing strap (10). The second end of the pole fixing strap (30) is provided with a buckle (34), which is detachably connected to the retaining ring.

Images