Locking structure of anti-falling device

Abstract

The invention relates to a locking structure, and particularly discloses a locking structure of an anti-falling device, the locking structure comprises a rotary locking component and a safety rope, the rotary locking component comprises a rotary disc and a fixed shaft seat, the rotary disc is provided with two locking pieces, the locking pieces are located on one side of the rotary disc, the middle parts of the locking pieces are rotatably connected with the rotary disc, the fixed shaft seat is provided with a locking disc, and the locking disc is connected with the rotary disc. The safety rope is wound on the rotating disc, when the safety rope is pulled, the rotating disc rotates, when the rotating disc rotates, the locking disc on the fixed shaft seat continuously strikes and pushes one end of the locking piece, so that the locking piece rotates, and when the rotating speed of the rotating disc exceeds a set value, the locking piece is locked. The force of striking and pushing one end of the locking piece by the locking disc on the fixed shaft seat can enable the rotation of the locking piece to exceed a preset value and enable the other end of the locking piece to be clamped by the locking disc, so that the turntable cannot continuously rotate.

Description

Technical Field

[0001] The invention relates to a locking structure, in particular to a locking structure of an anti-falling device. Background Art

[0002] The anti-fall device is a safety device that is widely used in aerial work. The size and type of the anti-fall device used in aerial work in different scenarios are different.

[0003] Generally speaking, a fall prevention device usually includes a shell, a safety rope and a locking component. When working at heights, the operator needs to wear a safety belt first. The main part of the fall prevention device is installed on a fixed railing or device, and then one end of the safety rope of the fall prevention device is connected to the safety belt on the body. When the operator is working at heights, when walking or squatting or standing normally, the safety rope of the fall prevention device will be pulled out or retracted at a normal speed. When the operator accidentally falls, the safety rope of the fall prevention device will be pulled out rapidly. At this time, the locking component will be stuck, making it impossible for the safety rope of the fall prevention device to continue to be pulled out, preventing the operator from continuing to fall.

[0004] The working principle of the locking component of the anti-fall device is often as follows: the safety rope is wrapped around the locking component. When the safety rope of the anti-fall device is pulled out rapidly, the locking component will rotate rapidly together. When the locking component rotates rapidly, under the action of centrifugal force, the claw of the locking component is thrown out, and the claw can be stuck on the fixed shell, so that the locking component cannot continue to rotate. Therefore, the safety rope cannot be pulled out any further, thereby achieving the locking effect and protecting the safety of the operators.

[0005] However, the locking component of the anti-fall device mentioned above has the following defects: in normal high-altitude operations, the locking mechanism of the anti-fall device does not need to work. Only when a person falls, the rapid pulling of the safety rope causes a large centrifugal force to throw the locking component out. Therefore, the locking component of the anti-fall device is basically in a relatively static state. Therefore, the locking component will rust, get stuck, and become sluggish, and it is more likely to "fail", posing a greater safety hazard. Summary of the invention

[0006] The object of the present invention is to provide a locking structure of an anti-falling device to solve the deficiencies of the prior art.

[0007] According to one aspect of the present invention, a locking structure of an anti-falling device is provided, including a rotating locking component and a safety rope. The rotating locking component includes a turntable and a fixed shaft seat. Two locking members are arranged on the turntable. The locking member is located on one side of the turntable. The middle part of the locking member is rotatably connected to the turntable. A locking disk is arranged on the fixed shaft seat. The safety rope is wrapped around the turntable. When the safety rope is pulled, the turntable rotates. When the turntable rotates, the locking disk on the fixed shaft seat continuously hits and pushes one end of the locking member to cause the locking member to rotate. When the rotation speed of the turntable exceeds a set value, the force with which the locking disk on the fixed shaft seat hits and pushes one end of the locking member can cause the rotation of the locking member to exceed a preset value, and cause the other end of the locking member to be stuck by the locking disk, so that the turntable cannot continue to rotate.

[0008] In some embodiments, a rigid tooth is provided on the outer ring of the locking disk, and the rigid tooth is inclined and protrudes. An arc-shaped portion is provided at one end of the locking member. When the turntable rotates, the rigid tooth will continuously hit and push the arc-shaped portion at one end of the locking member to cause the locking member to rotate.

[0009] In some embodiments, a protrusion is provided at the other end of the locking member. When the rotation speed of the turntable exceeds a set value, the protrusion will be stuck in the concave portion formed by the rigid teeth and the locking plate, so that the turntable cannot continue to rotate.

[0010] In some embodiments, an elastic member is further provided on the turntable, one end of the elastic member is connected to one end of the locking member, and the other end is connected to the turntable. The elastic member has an elastic tendency, which can make one end of the locking member abut against the rigid tooth and the other end of the locking member away from the rigid tooth.

[0011] In some embodiments, a first hole is provided at one end of the locking member, a second hole is provided on the rotating disk, the elastic member is bent, one end of the elastic member is provided in the first hole, and the other end of the elastic member is provided in the second hole.

[0012] In some embodiments, a cover plate is further included, and the cover plate can be covered on one side of the turntable.

[0013] In some embodiments, a rotating shaft is provided in the middle of the locking member, and the locking member is rotatably connected to the rotating disk via the rotating shaft.

[0014] In some embodiments, it also includes a coil spring and a shell, the coil spring is arranged in the shell, and the inner circle of the coil spring is connected to the other side of the turntable, and the shell is provided with a through hole, and one end of the safety rope can extend from the through hole.

[0015] The beneficial effects of the present invention are as follows: In the present invention, the safety rope can be buckled on the staff, and when there is no accident of sudden falling, the safety rope is generally pulled out at a slower speed. In the process of pulling out the safety rope at a slower speed, the turntable will rotate. When the turntable rotates, the locking disk on the fixed shaft seat will continuously hit and push one end of the locking piece, causing the locking piece to rotate. Due to the slow speed, the rotation angle caused by the locking piece being hit is small, and the other end of the locking piece will not be stuck by the locking disk. When an accident of sudden falling occurs, the rotation speed of the turntable exceeds the set value, and the force of the locking disk on the fixed shaft seat hitting and pushing one end of the locking piece can make the rotation speed of the locking piece exceed the preset value, and the other end of the locking piece will be stuck by the locking disk, so that the turntable cannot continue to rotate, the safety rope will not continue to extend, the staff stops falling, and the locking process is completed, thereby ensuring the safety of the staff.

[0016] The turntable in the present invention will continue to rotate, and the locking piece on the turntable will also rotate accordingly. Therefore, the locking piece will be continuously hit by the locking disk. The present invention uses hitting to achieve locking. Even if the present invention is used normally for a long time without falling, the risk of "failure" caused by rust or jamming can still be avoided, thereby avoiding unnecessary accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a locking structure of an anti-falling device according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the anti-fall device shown in FIG. 1 after the locking structure of the anti-fall device hides part of the housing;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the anti-fall device in another direction after the locking structure of the anti-fall device hides part of the housing;

[0020] Figure 4 for Figure 1 Schematic diagram of the exploded structure of the locking structure of the anti-fall device shown.

[0021] In the figure, 1-rotating locking component; 11-turntable; 111-locking member; 1111-arc-shaped portion; 1112-raised portion; 112-rotating shaft; 113-cover plate; 12-fixed shaft seat; 121-locking disk; 1211-rigid teeth; 1212-concave portion; 13-first hole; 14-second hole; 2-safety rope; 3-elastic member; 4-coil spring; 5-housing; 51-through hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] Figure 1 to Figure 4 The locking structure of the anti-falling device according to one embodiment of the present invention is schematically shown.

[0025] like Figure 1 to Figure 4 As shown, a locking structure of a fall prevention device comprises a rotating locking component 1 and a safety rope 2.

[0026] The rotation locking component 1 includes a rotating disk 11 and a fixed shaft seat 12. Two locking members 111 are installed on the rotating disk 11. The locking members 111 are located on one side of the rotating disk 11 ( Figure 2 The middle part of the locking member 111 is rotatably connected to the rotating disk 11, and a locking plate 121 is fixed on the fixed shaft seat 12. The fixed shaft seat 12 and the locking plate 121 in this embodiment are fixed, that is, when the rotating locking member 1 rotates, the fixed shaft seat 12 and the locking plate 121 do not rotate. Figure 3 As can be seen from the figure, the safety rope 2 is wound around the turntable 11. When the safety rope 2 is pulled, the safety rope 2 will drive the turntable 11 to rotate. Figure 2 and Figure 3 It can be seen that the locking plate 121 on the fixed shaft seat 12 will continuously hit and push one end of the locking member 111 to cause the locking member 111 to rotate. When the rotation speed of the turntable 11 exceeds the set value (for example, the rotation speed setting value of the turntable 11 is N revolutions / min), at this time, the locking plate 121 on the fixed shaft seat 12 hits and pushes one end of the locking member 111 with a force that makes the rotation angle of the locking member 111 exceed the preset value, causing the locking member 111 to rotate to a greater extent.

[0027] Specific as Figure 4 The following is an example for explanation. Figure 4 When the safety rope 2 drives the turntable 11 to rotate counterclockwise, the locking member 111 on the turntable 11 will also rotate counterclockwise during the counterclockwise rotation of the turntable 11. Figure 4 During the counterclockwise rotation of the locking piece 111, the locking plate 121 will hit and push the locking piece 111, and the locking piece 111 will rotate counterclockwise relative to the turntable 11. When the rotation speed of the turntable 11 exceeds the set value, the locking plate 121 on the fixed shaft seat 12 hits and pushes one end of the locking piece 111 with a force that makes the rotation angle of the locking piece 111 exceed the preset value. At this time, the counterclockwise rotation angle of the locking piece 111 is large, and the other end of the upper locking piece 111 rotates downward, so that the other end of the locking piece 111 will be stuck by the locking plate 121, and the turntable 11 cannot continue to rotate.

[0028] Therefore, when the present invention is used on a worker, when the worker falls, the rotation speed of the turntable 11 will exceed the set value (for example, the rotation speed setting value of the turntable 11 is N revolutions / min), and the other end of the locking member 111 will be stuck by the locking plate 121, so that the turntable 11 cannot continue to rotate, thereby preventing the worker from falling further and protecting the worker's safety.

[0029] like Figure 1 to Figure 4 As shown, a circle of rigid teeth 1211 is formed on the outer ring of the locking disc 121, and the rigid teeth 1211 obliquely protrude toward one end of the locking member 111. One end of the locking member 111 is correspondingly integrally formed with an arc-shaped portion 1111, and the arc-shaped portion 1111 will contact one end of the locking member 111 and have a certain abutting force. Since the arc-shaped portion 1111 is an arc-shaped portion, the arc-shaped portion 1111 will not hinder the rotation of the turntable 11. When the turntable 11 rotates, the rigid teeth 1211 will continue to hit and push the arc-shaped portion 1111 at one end of the locking member 111, so that the locking member 111 rotates. After the locking member 111 rotates, the arc-shaped portion 1111 at one end of the locking member 111 will move away from the rigid teeth 1211, and the arc-shaped portion 1111 at the other end of the locking member 111 will be close to the rigid teeth 1211.

[0030] In order to play a locking role, the other end of the locking piece 111 in this embodiment is integrally formed with a protrusion 1112. When the rotation speed of the turntable 11 exceeds the set value, the locking piece 111 will rotate significantly. After the other end of the locking piece 111 rotates significantly, the protrusion 1112 will be stuck in the concave portion 1212 formed by the rigid teeth 1211 and the locking disk 121. Since the protrusion 1112 and the concave portion 1212 cooperate with each other and the turntable 11 has a twisting tendency, the turntable 11 cannot continue to rotate. When the turntable 11 cannot rotate, the safety rope 2 cannot be pulled out further, thereby preventing the operator from continuing to fall.

[0031] In this embodiment, if Figure 2 and Figure 4As shown in the figure, an elastic member 3 can also be provided on the turntable 11. One end of the elastic member 3 is connected to one end of the locking member 111, and the other end is connected to the turntable 11. The elastic member 3 has an elastic tendency, and this elastic tendency can make one end of the locking member 111 abut against the rigid tooth 1211, and the other end of the locking member 111 is away from the rigid tooth 1211. By setting the magnitude of the elastic force of the elastic member 3, the preset value of the rotation angle of the locking member 111 can be adjusted. When the elastic force of the elastic member 3 is large, the preset value of the rotation angle of the locking member 111 is also correspondingly large. That is to say, the locking member 111 needs to have a greater rotation speed to achieve locking. On the contrary, when the elastic force of the elastic member 3 is small, the preset value of the rotation angle of the locking member 111 is also correspondingly small, and the locking member 111 can achieve locking with a smaller rotation speed.

[0032] In order to fix the elastic member 3 and make the elastic member 3 have an elastic torsional force on the locking member 111, in this embodiment, a first hole 13 can be integrally formed at one end of the locking member 111, and a second hole 14 can be integrally formed at the corresponding position of the turntable 11. The elastic member 3 is bent, specifically: the elastic member 3 is in a "U" shape. One end of the elastic member 3 can be inserted into the first hole 13, and the other end of the elastic member 3 can be inserted into the second hole 14. The elastic member 3 can have a certain elastic tendency.

[0033] In addition, on one side of the turntable 11 ( Figure 2 the right side in the figure), a cover plate 113 is installed. The cover plate 113 can cover one side of the turntable 11 and can cover the locking member 111 and the fixed shaft seat 12 on one side of the turntable 11.

[0034] In order to realize the rotation of the locking member 111, a rotating shaft 112 can be installed at the middle position of the locking member 111. The locking member 111 is rotationally connected to the turntable 11 through the rotating shaft 112. When the locking member 111 rotates through the rotating shaft 112, as Figure 4 shown in the figure, the upper locking member 111 will rotate counterclockwise under the impact and push of the locking disc 121, that is, one end of the locking member 111 will move away from the locking disc 121, and the other end of the locking member 111 will approach the locking disc 121.

[0035] In this embodiment, as Figure 4 shown in the figure, the present invention further includes a torsion spring 4 and a housing 5. The torsion spring 4 can be installed in the housing 5, and the inner ring of the torsion spring 4 is connected to the other side of the turntable 11. The torsion spring 4 can always make the turntable 11 have a certain torsional force, that is, the safety rope on the turntable 11 always has a tendency to contract. A through hole 51 can be integrally formed on the housing 5, and one end of the safety rope 2 can extend out from the through hole 51.

[0036] In the present invention, the safety rope 2 can be buckled on the worker. When there is no accident of sudden falling, the safety rope 2 is generally pulled out at a relatively slow speed. During the process of pulling out the safety rope 2 at a relatively slow speed, the turntable 11 will rotate. When the turntable 11 rotates, the locking plate 121 on the fixed shaft seat 12 will continuously hit and push one end of the locking member 111, so that the locking member 111 rotates. Due to the slow speed, the rotation angle caused by the locking member 111 being hit is small, and the locking member 111 The other end of the locking member 111 will not be stuck by the locking disk 121. When a sudden fall occurs, the rotation speed of the turntable 11 exceeds the set value. The locking disk 121 on the fixed shaft seat 12 hits and pushes one end of the locking member 111 with a force that makes the rotation speed of the locking member 111 exceed the preset value. The other end of the locking member 111 will be stuck by the locking disk 121, so that the turntable 11 cannot continue to rotate. At this time, the safety rope 2 will not continue to extend, the staff will stop falling, and the locking process is completed, which can ensure the safety of the staff.

[0037] The turntable 11 in the present invention will continue to rotate, and the locking piece 111 on the turntable 11 will also rotate accordingly. Therefore, the locking piece 111 will be continuously hit by the locking disk 121. The present invention adopts the hitting method to achieve locking. Even if the present invention is used normally for a long time without falling, the risk of "failure" caused by rust or jamming can still be avoided, thereby avoiding unnecessary accidents.

[0038] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A locking structure of an anti-fall device, characterized in that: The invention comprises a rotating locking component (1) and a safety rope (2), wherein the rotating locking component (1) comprises a rotating disk (11) and a fixed shaft seat (12), wherein two locking components (111) are arranged on the rotating disk (11), wherein the locking components (111) are located on one side of the rotating disk (11), wherein the middle part of the locking components (111) is rotatably connected to the rotating disk (11), and wherein a locking disk (121) is arranged on the fixed shaft seat (12), wherein the safety rope (2) is wound around the rotating disk (11), and when the safety rope (2) is pulled, the rotating disk (11) will rotate. When the turntable (11) rotates, the locking plate (121) on the fixed shaft seat (12) will continuously strike and push one end of the locking member (111), so that the locking member (111) rotates. When the rotation speed of the turntable (111) exceeds a set value, the force with which the locking plate (121) on the fixed shaft seat (12) strikes and pushes one end of the locking member (111) can cause the rotation speed of the locking member (111) to exceed a preset value, and cause the other end of the locking member (111) to be stuck by the locking plate (121), so that the turntable (111) cannot continue to rotate.

2. The locking structure of the anti-falling device according to claim 1, characterized in that: The outer ring of the locking disk (121) is provided with rigid teeth (1211), the rigid teeth (1211) are inclined and protruding, and one end of the locking member (111) is provided with an arc-shaped portion (1111), and when the rotating disk (11) rotates, the rigid teeth (1211) continuously strike and push the arc-shaped portion (1111) at one end of the locking member (111), so that the locking member (111) rotates.

3. The locking structure of the anti-falling device according to claim 2, characterized in that: The other end of the locking member (111) is provided with a protrusion (1112). When the rotation speed of the rotating disk (11) exceeds a set value, the protrusion (1112) will be stuck in a concave portion (1212) formed by the rigid teeth (1211) and the locking disk (121), so that the rotating disk (11) cannot continue to rotate.

4. The locking structure of the anti-falling device according to claim 3 is characterized in that: The rotating disk (11) is also provided with an elastic member (3), one end of the elastic member (3) is connected to one end of the locking member (111), and the other end is connected to the rotating disk (11), and the elastic member (3) has an elastic tendency, which can make one end of the locking member (111) abut against the rigid tooth (1211), and the other end of the locking member (111) is away from the rigid tooth (1211).

5. The locking structure of the anti-falling device according to claim 4, characterized in that: A first hole (13) is provided at one end of the locking member (111), a second hole (14) is provided on the rotating disk (11), the elastic member (3) is bent, one end of the elastic member (3) is arranged in the first hole (13), and the other end of the elastic member (3) is arranged in the second hole (14).

6. The locking structure of the anti-falling device according to any one of claims 1 to 5, characterized in that: The utility model also comprises a cover plate (113), wherein the cover plate (113) can cover one side of the turntable (11).

7. The locking structure of the anti-falling device according to claim 6, characterized in that: A rotating shaft (112) is provided in the middle of the locking member (111), and the locking member (111) is rotatably connected to the rotating disk (11) via the rotating shaft (112).

8. The locking structure of the anti-falling device according to claim 7, characterized in that: It also comprises a coil spring (4) and a housing (5), wherein the coil spring (4) is arranged in the housing (5), and the inner ring of the coil spring (4) is connected to the other side of the turntable (11), and the housing (5) is provided with a through hole (51), and one end of the safety rope (2) can extend from the through hole (51).

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