CN214365093U

CN214365093U - Falling protector

Info

Publication number: CN214365093U
Application number: CN202023105493.5U
Authority: CN
Inventors: 于春生
Original assignee: Cooper Tianjin Technology Co Ltd
Current assignee: Cooper new energy Co.,Ltd.
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-10-08
Anticipated expiration: 2030-12-22

Abstract

The utility model relates to a falling protector. The device comprises a first base body and a second base body which are connected in a butt joint mode and can be disassembled, wherein a locking structure is arranged between the first base body and the second base body; a first rail groove is formed in the inner side of the first base body, a second rail groove is formed in the inner side of the second base body, and two side edges of the lifeline rail respectively fall into the first rail groove and the second rail groove; the anti-falling device is characterized in that an inclined locking groove with an open upper end and a sealed lower end is arranged in the first base body, a locking assembly is arranged in the inclined locking groove and comprises a locking wedge which is separated from the inclined locking groove by means of inertia when the anti-falling device falls, and the separated locking wedge is embedded into a wedge joint between the anti-falling device and the life line track to realize locking. The utility model discloses a safety hook structural design is simple reasonable, the simple operation, and the impact of action response is little, and the part of being convenient for is changed and is maintained.

Description

Falling protector

Technical Field

The utility model belongs to the technical field of high altitude construction safety protection articles for use, especially, relate to a safety hook.

Background

The safety protection device is characterized in that high-altitude operation is usually involved in industries such as wind power construction and building construction, the danger coefficient of the high-altitude operation is high, and in order to guarantee the personal safety of operators and prevent the operators from accidentally falling from the high altitude, a life line is usually required to be arranged and the operators wear the anti-falling device connected with the life line. The lifeline is usually a vertically mounted track, and the fall arrest device worn by the operator is usually a safety belt connected to the lifeline via a fall arrest device. When the worker falls, the aim of safe falling prevention is achieved through the locking action between the falling protector and the life line; under the condition of normal operation, the falling protector and the life line have no locking relation, but the falling protector flexibly moves on the life line along with the movement of the operator along the life line.

The existing falling protector is generally matched with a lock hole formed in a lifeline to realize the safe falling prevention function through the lock block, specifically, the lock block of the falling protector is abutted against a lock hook, a safety belt is connected to the lock hook, when an operator falls, the lock hook is pulled to incline through the safety belt, the lock hook after the inclination can eject the lock block from the original position, and the lock block extends into the lock hole in the lifeline in the process of continuing falling, so that the locking between the falling protector and the lifeline is realized.

The falling protector with the structure has the following problems: firstly, the falling protector generates a falling prevention effect and simultaneously generates a larger impact effect on falling operators, which is determined by a matching connection mode between the falling protector and a life line; secondly, the locking block of the falling protector is easy to deform due to rigid collision between the locking block and the life line, so that the locking block needs to be replaced in order to ensure the continuous effectiveness of the falling protector, and the structure of the existing falling protector is inconvenient to replace; further, the safety hook is usually attached to the end of a safety belt worn by an operator, and the safety hook is attached to a lifeline disposed on the site before the operator climbs the work site.

In summary, the fall arrester needs to be designed optimally in structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a falling protector which has simple and reasonable structural design, convenient operation, small impact effect of action response and convenient part replacement and maintenance for solving the technical problems in the prior art.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: the falling protector comprises a first base body and a second base body which are connected in a butt joint mode and can be disassembled, and a locking structure is arranged between the first base body and the second base body; a first rail groove is formed in the inner side of the first base body, a second rail groove is formed in the inner side of the second base body, and two side edges of the lifeline rail respectively fall into the first rail groove and the second rail groove; the anti-falling device is characterized in that an inclined locking groove with an open upper end and a sealed lower end is arranged in the first base body, a locking assembly is arranged in the inclined locking groove and comprises a locking wedge which is separated from the inclined locking groove by means of inertia when the anti-falling device falls, and the separated locking wedge is embedded into a wedge joint between the anti-falling device and the life line track to realize locking.

The utility model has the advantages that:

the utility model provides a simple reasonable safety hook of structural design compares with current safety hook, the utility model provides a safety hook has revoluted the mode of action response, changes the action response mode that rigid collision, gomphosis are connected between original locking piece and the lifeline track into the inertia that relies on the locking subassembly makes locking voussoir embedding safety hook and the action response mode between the lifeline track. Therefore, compared with the operation response method of rigid collision fitting locking, the operation response method of the present invention has less impact on the operator. The utility model discloses in through setting up the locking subassembly in putting the locking groove to one side and the locking voussoir is as accepting frictional part, when taking place excessive wearing and tearing, deformation and need change, change the simple operation and easily go on, consequently be convenient for maintain. The utility model discloses in first base member and the second base member through the design safety hook adopt the closure structure closure to connect, make whole safety hook be convenient for carry out the partition and the combination, consequently the safety hook is very convenient to the installation on the lifeline track with dismantle the operation.

Preferably: the locking subassembly is equipped with the cushion in energy storage spring's upper end still including placing the energy storage spring in putting the locking groove to one side, and the locking voussoir is located the top of cushion, and energy storage spring is in compression state, and locking voussoir and cushion fall into to one side completely and put the locking groove.

Preferably: the locking structure comprises an upper locking rod and a lower locking rod which are arranged on the inner end face of the first base body, an upper locking hole and a lower locking hole are formed in the second base body, the upper locking rod is located in the upper locking hole, the lower locking rod is located in the lower locking hole, and the upper locking rod and the lower locking rod are locked or released through locking connecting rods.

Preferably: an upper locking groove is arranged on the side wall of the outer end of the upper locking rod, and a lower locking groove is arranged on the side wall of the outer end of the lower locking rod; a shaft hole extending upwards from the lower end face is formed in the second base body, the shaft hole is intersected with the upper lock hole and the lower lock hole, and the locking connecting rod is located in the shaft hole; the locking connecting rod comprises a connecting rod body, an upper locking shaft section and a lower locking shaft section are arranged on the connecting rod body, and when the locking connecting rod moves along the shaft hole, the two locking shaft sections are synchronously matched with or separated from the upper locking groove and the lower locking groove.

Preferably: a return spring is arranged between the upper end of the locking connecting rod and the blind end of the shaft hole.

Preferably: and a threaded hole which penetrates through the shaft hole inwards is formed in the side wall of the second base body, a limiting screw is arranged in the threaded hole, and the inner end of the limiting screw is positioned below the bottom edge of the upper locking shaft section.

Preferably: an upper threaded hole and a lower threaded hole are formed in the side wall of the first base body, and an upper fixing screw for fixing the upper locking rod and a lower fixing screw for fixing the lower locking rod are respectively arranged in the two threaded holes.

Preferably: and a limiting safety rod is arranged at the bottom of the first base body.

Preferably: a first wear-resistant bushing is installed in the first track groove, and a second wear-resistant bushing is installed in the second track groove.

Preferably: and the back of the first base body or the second base body is provided with an connecting ear plate for connecting with a safety belt.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the first substrate and its accompanying components of FIG. 1, from an upper perspective;

FIG. 3 is a schematic view of the first substrate and its accompanying components of FIG. 1, from a lower perspective;

FIG. 4 is a schematic view of the second substrate and its accompanying components of FIG. 1, from an upper perspective;

FIG. 5 is a schematic view of the second substrate and its accompanying components of FIG. 1, from a lower perspective;

FIG. 6 is a schematic structural view of the locking assembly of FIG. 1;

FIG. 7 is a schematic view of the structure of the bushing and locking mechanism portion of the present invention;

fig. 8 is a schematic view of the structure of the usage state of the present invention.

In the figure: 1. a limiting safety rod; 2. a lower fixing screw; 3. a locking assembly; 3-1, locking the wedge block; 3-2, cushion blocks; 3-3, an energy storage spring; 4. a locking groove is obliquely arranged; 5. an upper fixing screw; 6. a first wear-resistant bushing; 7. a first track groove; 8. a first substrate; 9. a limiting groove; 10. a second substrate; 11. a second wear-resistant bushing; 12. a second track groove; 13. a limit screw; 14. locking the connecting rod; 15. an upper lock lever; 15-1, an upper locking groove; 16. a lock-down lever; 16-1, a lower locking groove; 17. connecting the ear plates; 18. an upper lock hole; 19. a lower lock hole; 20. a return spring; 21. a lifeline track.

Detailed Description

For further understanding of the contents, features and effects of the present invention, the following embodiments are described in detail.

Referring to fig. 1, the safety catch of the present invention comprises a first base body 8 and a second base body 10 which are connected in a butt joint manner and can be disassembled and assembled, and a locking structure is arranged between the first base body 8 and the second base body 10, and the first base body 8 and the second base body 10 can be disassembled and locked in a butt joint manner by operating the locking structure, so that the whole safety catch is convenient to disassemble and assemble on the life line rail 21, and is convenient to use.

Referring to fig. 2, 3, 4 and 5, it can be seen that:

the first rail groove 7 is provided on the inner side of the first base body 8, the second rail groove 12 is provided on the inner side of the second base body 10, and both side edges of the lifeline rail 21 fall into the first rail groove 7 and the second rail groove 12, respectively, so that the safety hook slides on the lifeline rail 21.

In the present embodiment, in order to improve the wear resistance of both the first base body 8 and the second base body 10 and to extend the service life of the safety brake device, the first wear-resistant bush 6 is installed in the first track groove 7, and the second wear-resistant bush 11 is installed in the second track groove 12. Referring to fig. 7, the first wear-resistant bushing 6 and the second wear-resistant bushing 11 have the same structure, the cross sections of the first wear-resistant bushing 6 and the second wear-resistant bushing 11 are C-shaped, the edges of the two sides of the lifeline track 21 respectively fall into the first wear-resistant bushing 6 and the second wear-resistant bushing 11, and when the falling protector slides and moves along the lifeline track 21, the wear-resistant bushings contact and rub with the edges of the lifeline track 21, so that the problem of over-rapid abrasion caused by direct contact and rubbing of the first base body 8 and the second base body 10 with the lifeline track 21 is solved.

An inclined locking groove 4 with an open upper end and a sealed lower end is formed in the first base body 8, a locking assembly 3 is arranged in the inclined locking groove 4, the locking assembly 3 comprises a locking wedge 3-1 which is separated from the inclined locking groove 4 by means of inertia when the falling protector falls, and the separated locking wedge 3-1 is embedded into a wedge seam between the falling protector and the life line rail 21 to realize locking.

Referring to fig. 6, it can be seen that:

the locking assembly 3 further comprises an energy storage spring 3-3 placed in the inclined locking groove 4, a cushion block 3-2 is arranged at the upper end of the energy storage spring 3-3, the locking wedge block 3-1 is located above the cushion block 3-2, the energy storage spring 3-3 is in a compressed state, and the locking wedge block 3-1 and the cushion block 3-2 completely fall into the inclined locking groove 4.

The action principle is as follows: when the main body part of the falling protector is pulled downwards suddenly by a safety belt worn by an operator in a falling state, the locking wedge 3-1 and the cushion block 3-2 are kept in place due to the self inertia effect, the lower end of the energy storage spring 3-3 extends gradually due to losing of support, when the main body part of the falling protector falls for a certain distance, the locking wedge 3-1 is separated from the upper end opening of the inclined locking groove 4 where the locking wedge 3-1 is located and enters a wedge seam between the falling protector main body and the life line rail 21, and in the process that the falling protector continues to descend for a certain distance, the locking wedge 3-1 is clamped more and more in the wedge seam, the friction force between the first wear-resistant bushing 6 and the second wear-resistant bushing 11 and the edge of the life line rail 21 is increased, and the falling protector cannot continue to descend on the life line rail 21 after being completely clamped, so that the locking and falling prevention actions are completed, producing an anti-falling safety result.

As the locking wedge 3-1 is subjected to strong friction action in the locking action process, the locking wedge 3-1 is used as a loss piece of the anti-falling device and needs to be replaced after a certain number of times of use. When the locking wedge 3-1 is replaced, the original locking wedge 3-1 is taken out of the inclined locking groove 4 and is placed into a new locking wedge 3-1, and the operation is convenient.

It should be noted that the shape of the locking wedge 3-1 can be set according to design requirements and is not limited to the spherical shape shown in the drawings. The shape of the locking wedge 3-1 depends on the cross section shape of the inclined locking groove 4 and the outer facade shape of the lifeline track 21, and the design standard is that the locking wedge 3-1 flexibly moves in the inclined locking groove 4 and smoothly enters the wedge gap after being separated from the inclined locking groove 4 to realize the clamping effect. Further, the energy storage spring 3-3 can be fixed in the inclined locking groove 4, and specifically, the bottom end of the energy storage spring 3-3 can be fixed by screwing a pin from the side wall of the first base body 8 or screwing a pin from the port of the inclined locking groove 4 to the groove bottom.

Referring to fig. 2, 4 and 7, it can be seen that:

the locking structure comprises an upper lock rod 15 and a lower lock rod 16 which are arranged on the inner end face of the first base body 8, an upper lock hole 18 and a lower lock hole 19 are arranged on the second base body 10, the upper lock rod 15 is positioned in the upper lock hole 18, the lower lock rod 16 is positioned in the lower lock hole 19, and the upper lock rod 15 and the lower lock rod 16 are locked or released by a locking connecting rod 14. The locking link 14 is operated to lock or release both the upper lock lever 15 and the lower lock lever 16, and when both lock levers are locked, both the first base 8 and the second base 10 are locked, and when both lock levers are released, both the first base 8 and the second base 10 can be unlocked.

In this embodiment, an upper threaded hole and a lower threaded hole are provided in the side wall of the first base 8, and an upper fixing screw 5 for fixing the upper lock lever 15 and a lower fixing screw 2 for fixing the lower lock lever 16 are provided in the two threaded holes, respectively. An upper and a lower two insertion holes are arranged on the first base body 8, the upper and the lower two threaded holes extend inwards and are communicated with the two insertion holes, and the end parts of the upper locking rod 15 and the lower locking rod 16 are respectively inserted into the upper and the lower two insertion holes and are respectively fixed by an upper fixing screw 5 and a lower fixing screw 2.

As shown in the figure, an upper locking groove 15-1 is arranged on the outer end side wall of the upper locking rod 15, a lower locking groove 16-1 is arranged on the outer end side wall of the lower locking rod 16, and the upper locking groove 15-1 and the lower locking groove 16-1 are both connected with the locking connecting rod 14 in a matching way; in the second base 10, a shaft hole extending upward from the lower end is provided, and the shaft hole intersects with the upper lock hole 18 and the lower lock hole 19, and the lock link 14 is located in the shaft hole. The locking connecting rod 14 comprises a connecting rod body, an upper locking shaft section and a lower locking shaft section are arranged on the connecting rod body, the diameter of the locking shaft sections is larger than that of the connecting rod body, and when the locking connecting rod 14 moves along a shaft hole, the two locking shaft sections are synchronously matched with or separated from the upper locking groove 15-1 and the lower locking groove 16-1.

Further, the upper locking groove 15-1 and the lower locking groove 16-1 are both arc-shaped grooves, and the radii of the two arc-shaped grooves are equal to the radii of the upper locking shaft section and the lower locking shaft section, so that when the locking shaft sections are placed into the locking grooves, stable locking of the lock rod is achieved.

In this embodiment, a return spring 20 is disposed between the upper end of the locking link 14 and the blind end of the shaft hole, so that the locking link 14 is forced to move upward manually, i.e., the locking link 14 is pushed upward from the lower end, and the return spring 20 provides the locking link 14 with an elastic force for moving downward. As shown in the figures, a recess may be provided in the upper end of the upper locking shaft section, into which recess the lower end of the return spring 20 falls.

The whole locking connecting rod 14 can be made of a whole metal bar, and in order to ensure the stability of movement, the outer diameters of the upper and lower locking shaft sections are slightly smaller than the inner diameter of the shaft hole. An arc-shaped end cap is provided at the lower end of the locking link 14 to improve comfort during manual operation.

In order to prevent the whole locking connecting rod 14 from falling out of the shaft hole, a threaded hole penetrating inwards to the shaft hole is formed in the side wall of the second base body 10, a limit screw 13 is arranged in the threaded hole, and the inner end of the limit screw 13 is located below the bottom edge of the upper locking shaft section. Thus, under the elastic force of the return spring 20, the final position of the downward movement of the locking link 14 is the position where the bottom edge of the upper locking shaft section abuts against the inner end of the limit screw 13, and in this position, the locking shaft section is in the locking state in the locking groove.

In consideration of the fact that the locking connecting rod 14 can be mistakenly triggered by touching another object in a wrong way during the descending movement of the falling protector, so that the locking connecting rod is unlocked mistakenly and dangerous, the limiting safety rod 1 is arranged at the bottom of the first base body 8 in the embodiment. As shown in the figure, the limiting safety rod 1 and the lower end of the locking connecting rod 14 are both positioned below the falling protector main body, and due to the fixed connection relationship between the limiting safety rod 1 and the first base body 8, when the falling protector touches other objects at the bottom in the process of descending and moving along the lifeline track 21, the locking connecting rod 14 is prevented from being triggered by mistake due to the effect of the limiting safety rod 1, and the safety is improved. In this embodiment, the limit safety rod 1 may be connected to the first base 8 by a screw, and an arc-shaped end cap may be disposed at an end of the limit safety rod 1.

In order to facilitate connection with a safety belt worn by an operator, in the present embodiment, an engaging lug plate 17 for connection with the safety belt is provided on the back of the first base body 8 or the second base body 10, and an attachment hole is provided in the engaging lug plate 17. It is contemplated that the form of attachment to the harness is not limited to the form of attachment ear plate 17 shown in the drawings and any form of attachment that provides a stable attachment to the end of the harness may be used.

As shown in fig. 1, a limiting groove 9 may be further provided on the second substrate 10, and the limiting groove 9 is used to cooperate with a limiting plate provided on the lifeline rail 21.

The using method comprises the following steps:

the safety hook is connected to the end of a safety belt worn by an operator, the operator moves to the front of the lifeline track 21, and the locking connecting rod 14 is operated to separate the first base body 8 from the second base body 10 before climbing; then, the first base body 8 and the second base body 10 are clamped on the lifeline track 21 from the left direction and the right direction, so that the lock rod is inserted into the lock hole and the locking connecting rod 14 is operated to lock the two lock rods; the fall arrester completes the installation on the lifeline rail 21;

the worker then climbs in the direction of the lifeline track 21, at which time the fall arrester is free to move along the lifeline track 21; when an operator falls, under the traction action of a safety belt, the main body part of the falling protector moves downwards along the life line track 21, under the action of self inertia, the locking wedge 3-1 keeps the position, the energy storage spring 3-3 gradually extends along with the falling protector moves downwards, and finally the locking wedge 3-1 is separated from the inclined locking groove 4 and embedded into a wedge seam between the falling protector and the life line track 21 to finish locking and falling prevention;

after the falling risk is eliminated by an operator, the falling protector is pushed upwards to move upwards along the lifeline track 21, the locking wedge 3-1 falls into the inclined locking groove 4 again, and the energy storage spring 3-3 is in a compressed state again;

after the operation is finished, the locking connecting rod 14 is operated to disassemble the falling protector and detach the falling protector from the lifeline rail 21.

Claims

1. The utility model provides a safety hook which characterized by: comprises a first basal body (8) and a second basal body (10) which are connected in a butt joint way and can be disassembled, and a locking structure is arranged between the first basal body and the second basal body; a first rail groove (7) is formed in the inner side of the first base body (8), a second rail groove (12) is formed in the inner side of the second base body (10), and edges of two sides of the lifeline rail (21) respectively fall into the first rail groove (7) and the second rail groove (12); an inclined locking groove (4) with an open upper end and a sealed lower end is arranged in the first base body (8), a locking assembly (3) is arranged in the inclined locking groove (4), the locking assembly (3) comprises a locking wedge block (3-1) which is separated from the inclined locking groove (4) by means of inertia when the falling protector falls, and the separated locking wedge block (3-1) is embedded into a wedge joint between the falling protector and the life line rail (21) to realize locking.

2. The fall arrester of claim 1 wherein: the locking assembly (3) further comprises an energy storage spring (3-3) placed in the inclined locking groove (4), a cushion block (3-2) is arranged at the upper end of the energy storage spring (3-3), the locking wedge block (3-1) is located above the cushion block (3-2), the energy storage spring (3-3) is in a compression state, and the locking wedge block (3-1) and the cushion block (3-2) completely fall into the inclined locking groove (4).

3. The fall arrester of claim 2 wherein: the locking structure comprises an upper locking rod (15) and a lower locking rod (16) which are arranged on the inner end face of the first base body (8), an upper locking hole (18) and a lower locking hole (19) are formed in the second base body (10), the upper locking rod (15) is located in the upper locking hole (18), the lower locking rod (16) is located in the lower locking hole (19), and the upper locking rod (15) and the lower locking rod (16) are locked or released by a locking connecting rod (14).

4. The fall arrester of claim 3 wherein: an upper locking groove (15-1) is arranged on the side wall of the outer end of the upper locking rod (15), and a lower locking groove (16-1) is arranged on the side wall of the outer end of the lower locking rod (16); a shaft hole extending upwards from the lower end is formed in the second base body (10), the shaft hole is intersected with the upper lock hole (18) and the lower lock hole (19), and the locking connecting rod (14) is positioned in the shaft hole; the locking connecting rod (14) comprises a connecting rod body, an upper locking shaft section and a lower locking shaft section are arranged on the connecting rod body, and when the locking connecting rod (14) moves along the shaft hole, the two locking shaft sections are synchronously matched with or separated from the upper locking groove (15-1) and the lower locking groove (16-1).

5. The fall arrester of claim 4 wherein: a return spring (20) is arranged between the upper end of the locking connecting rod (14) and the blind end of the shaft hole.

6. The fall arrester of claim 5 wherein: and a threaded hole which penetrates through the shaft hole inwards is formed in the side wall of the second base body (10), a limiting screw (13) is arranged in the threaded hole, and the inner end of the limiting screw (13) is positioned below the bottom edge of the upper locking shaft section.

7. The fall arrester of claim 6 wherein: an upper threaded hole and a lower threaded hole are formed in the side wall of the first base body (8), and an upper fixing screw (5) for fixing an upper lock rod (15) and a lower fixing screw (2) for fixing a lower lock rod (16) are respectively arranged in the two threaded holes.

8. The fall arrester of claim 7 wherein: the bottom of the first base body (8) is provided with a limiting safety rod (1).

9. The fall arrester of claim 8 wherein: a first wear-resistant bushing (6) is mounted in the first track groove (7), and a second wear-resistant bushing (11) is mounted in the second track groove (12).

10. The fall arrester of claim 9 wherein: an engaging lug plate (17) for connection with a safety belt is arranged on the back of the first base body (8) or the second base body (10).