Rail-mounted fall protection device

Abstract

The application discloses a track type anti-falling device, which comprises a slide rail, a slide base capable of sliding along the slide rail, and a hook arranged on the slide base. A plurality of locking holes are arranged on the side wall of the slide rail at intervals along the length direction. The slide base is provided with an acceleration sensor, a control module, a locking pin, and a driving assembly for driving the locking pin to extend into the locking hole. The acceleration sensor is connected with the input end signal of the control module, and the output end of the control module is connected with the signal of the driving assembly. The track type anti-falling device has good reliability and is not easily affected by the normal movement of the operating personnel, thereby improving the safety of the operating personnel during normal movement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-altitude operation safety equipment, and particularly relates to a track type anti-falling device. BACKGROUND

[0002] In the process of using and maintaining special equipment such as portal bridge machines and ship lifts, personnel need to frequently go up and down, involving high places and edges, and there are major safety hazards. In order to avoid high-altitude falling and other personal injury accidents caused by hand slipping, sudden illness, heat stroke and other reasons, an anti-falling device is often used. The anti-falling device on the market is often used in cooperation with a track. When a person falls, the braking component in the anti-falling device will rub against the track to achieve the effect of braking and anti-falling. For example, the Chinese patent document with the announcement number CN208785631U discloses a track type high-altitude anti-falling device, which comprises an anti-falling seat body, a swing rod and an elastic reset piece. One end of the swing rod is a braking end and is provided with a protruding brake tooth. The swing rod is swingably connected to the anti-falling seat body. When a falling accident occurs, the swing rod swings under the action of the gravity of the human body. The brake tooth on the braking end is in the guide groove and is clamped on the guide rail to prevent further falling, thereby achieving the effect of safety protection. However, during the movement of the operating personnel downward, the swing rod is easily swung, the brake tooth is clamped on the guide rail, and the normal movement of the operating personnel is affected, so the reliability is poor. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a track type anti-falling device with good reliability, which is not easily affected by the normal movement of operating personnel and is conducive to improving safety.

[0004] To solve the above technical problems, the present application adopts the following technical scheme:

[0005] A track type anti-falling device, comprising a slide rail, a slide seat capable of sliding along the slide rail, and a hook arranged on the slide seat, wherein a plurality of locking holes are arranged on the side wall of the slide rail at intervals along the length direction, the slide seat is provided with an acceleration sensor, a control module, a locking pin and a driving assembly for driving the locking pin to extend into the locking hole, the acceleration sensor is signal connected with the input end of the control module, and the output end of the control module is signal connected with the driving assembly.

[0006] As a further improvement of the above technical scheme, the slide seat is provided with a connecting rod and a push rod, the driving assembly is connected with one end of the push rod, one end of the connecting rod is hinged to the push rod, and the other end of the connecting rod is movably connected with the locking pin.

[0007] As a further improvement of the above technical solution: the connecting rod is an arc-shaped rod, the sliding seat is provided with a guide slot hole, and the end of the arc-shaped rod connected with the lock pin is slidably arranged in the guide slot hole; and / or, the locking holes are arranged on the two side walls of the sliding rail, and the two sides of the push rod are provided with the connecting rod and the lock pin.

[0008] As a further improvement of the above technical solution: the driving assembly comprises an electromagnet and a lever, one end of the lever is matched with the electromagnet, the other end of the lever is abutted with one end of the push rod, and the output end of the control module is signal connected with the electromagnet.

[0009] As a further improvement of the above technical solution: one end of the lever is provided with a spherical abutment part, and the abutment part is abutted with one end of the push rod; and / or, the sliding seat is provided with a limiting piece for limiting the position of the lever.

[0010] As a further improvement of the above technical solution: one end of the push rod away from the driving assembly is provided with an anti-back reset mechanism, the anti-back reset mechanism comprises a reset block, anti-back teeth arranged on the two sides of the push rod, and lock hooks arranged one by one corresponding to the anti-back teeth, a first elastic piece is connected between the push rod and the sliding seat, a second elastic piece is connected between the lock hook and the sliding seat, the lock hook is provided with a first inclined surface and a second inclined surface, the anti-back tooth is provided with a third inclined surface matched with the first inclined surface, and the two sides of the reset block are provided with fourth inclined surfaces matched with the second inclined surfaces.

[0011] As a further improvement of the above technical solution: the reset block is connected with a pressing tube to avoid the push rod, and the pressing tube is connected with a cap body.

[0012] As a further improvement of the above technical solution: the sliding seat is provided with a first guide piece and a second guide piece on the two sides of the push rod, and the first guide piece is located between the second guide piece and the anti-back tooth; and / or, the lock hook is provided with a guide plate away from the reset block.

[0013] As a further improvement of the above technical solution: the sliding seat is provided with a guide slot, and the lock pin is arranged in the guide slot.

[0014] As a further improvement of the above technical solution: the two ends of the sliding rail are provided with detachable baffles.

[0015] Compared with the prior art, the rail type anti-falling device has the advantages that the acceleration sensor arranged on the sliding seat can send the acceleration data of the sliding seat to the control module in real time, the output end of the control module is signal connected with the driving assembly, when the acceleration value received by the control module exceeds the set value (i.e. the situation that the worker may fall or fall down), the control module sends the action signal to the driving assembly, the driving assembly drives the locking pin to extend into the locking hole, and after the locking pin is inserted into the locking hole, the sliding seat cannot continue to move, thereby preventing the movement of the worker. The rail type anti-falling device has the acceleration sensor and the control module, the control module sends the action signal to the driving assembly only when the acceleration of the sliding seat exceeds the set value, the driving assembly drives the locking pin to extend into the locking hole, and the continuous movement of the sliding seat is prevented, so that the reliability is good, the normal movement of the worker is not easily affected, and the safety of the worker during the normal movement is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a sectional view of a slide rail of the rail type anti-falling device.

[0017] Figure 2 is a top view of the rail type anti-falling device.

[0018] Figure 3 is a structure schematic view of the sliding seat in a moving state of the rail type anti-falling device.

[0019] Figure 4 is Figure 3 is an enlarged structure schematic view of part A in the figure.

[0020] Figure 5 is a structure schematic view of the rail type anti-falling device in a locked state.

[0021] Figure 6 is Figure 5 is an enlarged structure schematic view of part B in the figure.

[0022] Figure 7 is a structure schematic view of a reset block of the rail type anti-falling device.

[0023] Figure 8 is a structure schematic view of a lock hook of the rail type anti-falling device.

[0024] Figure 9 is a principle view of the control module of the rail type anti-falling device controlling the energization of the electromagnet.

[0025] The numbers in the figure represent: 1, slide rail; 11, locking hole; 12, first guide; 13, second guide; 14, guide groove; 15, baffle; 16, guide groove hole; 2, slide; 3, hook; 4, locking pin; 5, connecting rod; 6, push rod; 7, driving assembly; 71, lever; 711, magnetic part; 712, abutting part; 72, electromagnet; 73, battery; 8, anti-back reset mechanism; 81, anti-back tooth; 811, third inclined surface; 82, guide plate; 83, reset block; 831, fourth inclined surface; 832, pressing tube; 833, cap; 84, lock hook; 841, first inclined surface; 842, second inclined surface; 85, first elastic member; 86, second elastic member; 9, limiting member. DETAILED DESCRIPTION

[0026] The application will be further described in detail below in conjunction with the accompanying drawings and specific examples.

[0027] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In the present application, unless otherwise explicitly specified and limited, the terms "assembly", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0029] Figures 1 to 9An embodiment of the track type anti-falling device is shown, the track type anti-falling device of the embodiment comprises a slide rail 1, a slide base 2 which can slide along the slide rail 1 and a hook 3 which is arranged on the slide base 2, a plurality of locking holes 11 are arranged on the side wall of the slide rail 1 at intervals along the length direction, the slide base 2 is provided with an acceleration sensor, a control module, a locking pin 4 and a driving assembly 7 which is used to drive the locking pin 4 to extend into the locking hole 11, the acceleration sensor is signal connected with the input end of the control module, and the output end of the control module is signal connected with the driving assembly 7. It should be noted that the slide rail 1 should be fixed before use (the slide rail 1 can be fixed on the stair handrail of the special equipment, or can be fixed on an independent stand, and the fixing position is selected according to the need), the safety rope on the body of the worker is bound on the hook 3, and the safety rope will pull the hook 3 when the worker moves, thereby driving the slide base 2 to move on the slide rail 1.

[0030] The use principle of the track type anti-falling device of the embodiment is as follows: the acceleration sensor arranged on the slide base 2 can send the acceleration data of the slide base 2 to the control module in real time. The output end of the control module is connected with the driving assembly 7, when the acceleration value received by the control module exceeds the set value (that is, the worker may fall or fall), at this time, the control module will send an action signal to the driving assembly 7, the driving assembly 7 drives the locking pin 4 to extend into the locking hole 11, after the locking pin 4 is inserted into the locking hole 11, the slide base 2 cannot continue to move, thereby preventing the movement of the worker.

[0031] The track type anti-falling device of the embodiment is provided with an acceleration sensor and a control module, the control module will only send an action signal to the driving assembly 7 when the acceleration of the slide base 2 reaches the set value or more, the driving assembly 7 drives the locking pin 4 to extend into the locking hole 11, and the continuous movement of the slide base 2 is prevented, so that the reliability is good, the normal movement of the worker is not easily affected, and the safety of the worker during normal movement is improved.

[0032] For details, see Figure 3 and Figure 5 Further, in the embodiment, the slide base 2 is provided with a connecting rod 5 and a push rod 6, the driving assembly 7 is connected with one end of the push rod 6, one end of the connecting rod 5 is hinged with the push rod 6, and the other end of the connecting rod 5 is movably connected with the locking pin 4. When the driving assembly 7 receives the action signal, the push rod 6 will be pushed to move, since the push rod 6 is connected with the locking pin 4 through the connecting rod 5, the push rod 6 will drive the locking pin 4 to move in the moving process of the push rod 6, so that one end of the locking pin 4 extends out of the slide base 2 and is inserted into the locking hole 11.

[0033] For details, see Figure 3 and Figure 5Further, in the embodiment, the connecting rod 5 is an arc-shaped rod, which can reduce the stress inside the connecting rod 5 during relative movement of the locking pin 4 and the push rod 6, and can prolong the service life. The slide 2 is provided with a guide slot hole 16, and the end of the arc-shaped rod connected with the locking pin 4 is slidably arranged in the guide slot hole 16, which is beneficial to ensure that the push rod 6 moves in the correct direction to drive the locking pin 4 to normally extend into the locking hole 11.

[0034] Specifically referring to Figures 1 to 5 Further, in the embodiment, the locking holes 11 are arranged on the two side walls of the slide rail 1, and the push rod 6 is provided with the connecting rod 5 and the locking pin 4 on both sides, which is beneficial to improve the stability of the slide 2 during locking. Specifically, the distance between the adjacent locking holes 11 on the same side wall of the slide rail 1 is 5 cm, and after the control module sends the action signal, the braking distance of the slide 2 is short, which is beneficial to ensure the safety of the operator. Of course, in other embodiments, the distance between the adjacent locking holes 11 on the same side wall of the slide rail 1 can also be other lengths, as long as the slide rail 1 can complete braking at an appropriate distance.

[0035] Specifically referring to Figure 3 and Figure 5 Further, in the embodiment, the driving assembly 7 includes an electromagnet 72 and a lever 71, one end of the lever 71 is matched with the electromagnet 72 (the end has a magnetic part 711), the other end of the lever 71 abuts against one end of the push rod 6, and the output end of the control module is signal connected with the electromagnet 72. In the normal state, the coil of the electromagnet 72 is not electrified, when the control module sends the action signal to the electromagnet 72, the battery 73 of the electromagnet 72 supplies power to the coil of the electromagnet, attracts one end of the lever 71 to the electromagnet, and makes the other end of the lever 71 push the push rod 6 to move.

[0036] Specifically referring to Figure 3 and Figure 5 Further, in the embodiment, one end of the lever 71 is provided with a spherical abutting part 712, and the abutting part 712 abuts against one end of the push rod 6; the abutting part 712 is used to abut against the front end face of the push rod 6. This is beneficial to ensure that when the lever 71 swings towards the electromagnet 72, the abutting part 712 can effectively transmit the force to the push rod 6. Of course, in other embodiments, the abutting part 712 can also have other shapes, as long as it can effectively push the push rod 6 when the lever 71 swings towards the electromagnet 72.

[0037] Specifically referring to Figure 3 and Figure 5 As a preferred embodiment, the slide 2 is provided with a limiting piece 9 for limiting the position of the lever 71. This is beneficial to ensure that the electromagnet 72 can attract the magnetic part 711 to the electromagnet 72 after being electrified. It should be noted that the limiting piece 9 can be a stop block, a stop block or a stop rod, as long as it can prevent the magnetic part 711 from continuing to move away from the electromagnet 72.

[0038] With reference to Figures 3 to 8 , further, in the embodiment, the end of the push rod 6 away from the driving assembly 7 is provided with an anti-back reset mechanism 8, the anti-back reset mechanism 8 comprises a reset block 83, anti-back teeth 81 arranged on both sides of the push rod 6, and a lock hook 84 arranged in one-to-one correspondence with the anti-back teeth 81, the push rod 6 is connected with the sliding seat 2 through a first elastic member 85, the lock hook 84 is connected with the sliding seat 2 through a second elastic member 86, the lock hook 84 is provided with a first inclined surface 841 and a second inclined surface 842, the anti-back teeth 81 are provided with a third inclined surface 811 matched with the first inclined surface 841, and the reset block 83 is provided with a fourth inclined surface 831 matched with the second inclined surface 842. After the push rod 6 is pushed by the driving assembly 7, the third inclined surface 811 of the anti-back teeth 81 will first extrude the first inclined surface 841 of the lock hook 84, drive the lock hook 84 to move away from the push rod 6, and drive the second elastic member 86 to elastically deform; then, the anti-back teeth 81 move to the rear of the lock hook 84 and no longer contact the lock hook 84, the lock hook 84 moves to the direction close to the push rod 6 under the restoring force of the second elastic member 86 to restore the initial position; when the driving assembly 7 no longer pushes the push rod 6, the push rod 6 will have a reset tendency under the restoring force of the first elastic member 85, the lock hook 84 will lock the anti-back teeth 81, thereby preventing the push rod 6 from backtracking, and ensuring that the locking pin 4 will not exit from the locking hole 11. When it is needed to make the locking pin 4 exit from the locking hole 11, the pressing pipe 832 can be pressed to drive the reset block 83, so that the fourth inclined surface 831 of the reset block 83 extrudes the second inclined surface 842 of the lock hook 84, drives the lock hook 84 to move away from the push rod 6, after the anti-back teeth 81 are not in contact with the anti-back teeth 81, the push rod 6 will reset under the restoring force of the first elastic member 85, thereby driving the locking pin 4 to exit from the locking hole 11; after the pressing pipe 832 is no longer pressed, the lock hook 84 moves to the direction close to the push rod 6 under the restoring force of the second elastic member 86 to restore the initial position, at the same time, the second inclined surface 842 of the lock hook 84 extrudes the fourth inclined surface 831 of the reset block 83 to drive the pressing pipe 832 to reset. It needs to be noted that, in the embodiment, when the acceleration data received by the control module for a continuous setting time is zero, the control module will send a stop signal to the electromagnet 72 to make the coil of the electromagnet 72 de-energized, thereby facilitating the reset of the locking pin 4. Of course, in other embodiments, a pressure sensor can also be arranged on the pressing pipe 832, the pressure sensor is signal-connected with the control module, and after the control module receives the pressure data of the pressure sensor, a stop signal is sent to the electromagnet 72 to make the coil of the electromagnet 72 de-energized.

[0039] With reference to Figure 3 , Figure 5 and Figure 6Further, in the embodiment, the reset block 83 is connected with a pressing pipe 832 to avoid the push rod 6, and the pressing pipe 832 is connected with a cap 833. The operator can press the pressing pipe 832 to reset the push rod 6.

[0040] Specifically referring to Figure 3 and Figure 5 Further, in the embodiment, the slide base 2 is provided with the first guide 12 and the second guide 13 on both sides of the push rod 6. The first guide 12 is located between the second guide 13 and the anti-back tooth 81, and can abut against the anti-back tooth 81 during the resetting of the push rod 6, so as to ensure the accuracy of the resetting of the push rod 6. The two first guides 12 and the two second guides 13 form a guide channel, and the push rod 6 is located in the guide channel, which is beneficial to the stability and accuracy of the movement of the push rod 6. The first guide 12 and the second guide 13 can be a baffle, a block or a rod.

[0041] Specifically referring to Figures 3 to 7 Further, in the embodiment, the locking hook 84 is provided with a guide plate 82 on the side away from the reset block 83. When the first inclined surface 841 and the second inclined surface 842 of the locking hook 84 are pressed, the locking hook 84 can move in the correct direction, and the guide plate 82 can also cooperate with the locking hook 84 to prevent the push rod 6 from moving back.

[0042] Specifically referring to Figure 3 and Figure 5 Further, in the embodiment, the slide base 2 is provided with a guide groove 14, and the locking pin 4 is arranged in the guide groove 14, which is beneficial to the stability and accuracy of the movement of the locking pin 4.

[0043] Specifically referring to Figure 2 Further, in the embodiment, the slide rail 1 is provided with a detachable baffle 15 at both ends. The baffle 15 can prevent the slide base 2 from falling out of the slide rail 1 at both ends, and when the slide base 2 needs to be maintained or replaced, the baffle 15 can be detached to facilitate the removal of the slide base 2 from the slide rail 1. Preferably, the slide rail 1 is a T-shaped groove rail, and the slide base 2 is slidably arranged in the T-shaped groove rail, which is beneficial to prevent the slide base 2 from being separated from the slide rail 1 during movement, and has good safety.

[0044] Further, in the embodiment, the hook 3 is threadedly connected with the slide base 2, and a high-strength thread locking agent is applied at the threaded connection, which is beneficial to ensure the connection strength of the hook 3 and the slide base 2. Of course, in other embodiments, the hook 3 can be directly welded to the slide base 2.

[0045] Further, in the embodiment, the slide rail 1 is made of aluminum alloy or stainless steel. The surface of the aluminum alloy slide rail 1 is subjected to anodic oxidation treatment, and the surface of the stainless steel slide rail 1 is sprayed with a corrosion-resistant coating, which has good structural strength and corrosion resistance.

[0046] Further, in the embodiment, the connecting rod 5, the push rod 6, the driving assembly 7 and the anti-back reset mechanism 8 are all arranged in the internal space of the sliding seat 2, so that the related components can be prevented from being damaged by external contact during use, and the service life is improved.

[0047] Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present application, by using the technical contents disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the content of the technical solutions of the present application, shall fall within the protection scope of the technical solutions of the present application.

Claims

1. A track type fall arrest device, comprising a slide rail (1), a slide base (2) sliding along the slide rail (1), and a hook (3) provided on the slide base (2), characterized in that: The side wall of the slide rail (1) is provided with a plurality of locking holes (11) at intervals along the length direction, the slide base (2) is provided with an acceleration sensor, a control module, a locking pin (4) and a driving assembly (7) for driving the locking pin (4) to extend into the locking hole (11), the acceleration sensor is signal connected with the input end of the control module, the output end of the control module is signal connected with the driving assembly (7), the slide base (2) is provided with a connecting rod (5) and a push rod (6), one end of the driving assembly (7) is connected with the push rod (6), one end of the connecting rod (5) is hinged with the push rod (6), the other end of the connecting rod (5) is movably connected with the locking pin (4), one end of the push rod (6) away from the driving assembly (7) is provided with an anti-back reset mechanism (8), the anti-back reset mechanism (8) comprises a reset block (83), anti-back teeth (81) arranged on both sides of the push rod (6) and a lock hook (84) arranged in one-to-one correspondence with the anti-back teeth (81), a first elastic member (85) is connected between the push rod (6) and the slide base (2), a second elastic member (86) is connected between the lock hook (84) and the slide base (2), the lock hook (84) is provided with a first inclined surface (841) and a second inclined surface (842), the anti-back teeth (81) are provided with a third inclined surface (811) matched with the first inclined surface (841), the reset block (83) is provided with a fourth inclined surface (831) matched with the second inclined surface (842); the connecting rod (5) is an arc-shaped rod, the slide base (2) is provided with a guide slot (16), and the end of the arc-shaped rod connected with the locking pin (4) is slidably arranged in the guide slot (16); And / or, the locking hole (11) is arranged on the two side walls of the slide rail (1), and the push rod (6) is provided with the connecting rod (5) and the locking pin (4) on both sides.

2. The rail-mounted fall arrest device of claim 1, wherein: The driving assembly (7) comprises an electromagnet (72) and a lever (71), one end of the lever (71) is matched with the electromagnet (72), the other end of the lever (71) is abutted with one end of the push rod (6), and the output end of the control module is signal connected with the electromagnet (72).

3. The rail-mounted fall arrest device of claim 2, wherein: One end of the lever (71) is provided with a spherical abutment portion (712), and the abutment portion (712) is abutted with one end of the push rod (6); And / or, the slide base (2) is provided with a limiting piece (9) for limiting the position of the lever (71).

4. The rail-mounted fall arrest device of claim 1, wherein: The reset block (83) is connected with a pressing pipe (832) to avoid the push rod (6), and the pressing pipe (832) is connected with a cap body (833).

5. The rail-mounted fall arrest device of claim 1, wherein: The slide base (2) is provided with a first guide piece (12) and a second guide piece (13) on both sides of the push rod (6), and the first guide piece (12) is located between the second guide piece (13) and the anti-back tooth (81); And / or, the lock hook (84) is provided with a guide plate (82) away from the reset block (83).

6. The rail-mounted fall arrest device according to any one of claims 1 to 5, characterized in that: The slide base (2) is provided with a guide slot (14), and the locking pin (4) is arranged in the guide slot (14).

7. The rail-mounted fall arrest device according to any one of claims 1 to 5, characterized in that: The sliding rail (1) is provided with a detachable baffle (15) at both ends.

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