CN219375915U

CN219375915U - Safety belt hook

Info

Publication number: CN219375915U
Application number: CN202222568100.7U
Authority: CN
Inventors: 金赟; 范广飞
Original assignee: Ninghai Jinsong Stamping Parts Co ltd
Current assignee: Ninghai Jinsong Stamping Parts Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-07-21
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a safety belt hook, which comprises a main hook body, a locking part and a lock catch, wherein the main hook body comprises an open hook part, the hook part is provided with a free end, and the locking part and the lock catch are respectively and rotatably connected with the main hook body, so that the safety belt hook can be kept in a locking state or can be switched to an unlocking state through the rotation of the locking part and the lock catch; the lock catch is provided with a first abutting end capable of being matched with the free end; the lock catch is also provided with a second abutting end, and the locking part is provided with a locking pin; when the safety belt hook is in a locking state, the second abutting end abuts against the locking pin, so that the first abutting end abuts against the free end, at the moment, the lock catch seals the opening of the hook part, so that the lock catch and the hook part jointly form a sealed space, and the first abutting end abuts against the free end from the free end towards one side in the space; when the safety belt hook is in an unlocking state, the locking pin is separated from the second abutting end, and the first abutting end is separated from the free end to open the space.

Description

Safety belt hook

Technical Field

The utility model relates to protective equipment, in particular to a safety belt hook.

Background

The safety belt hook is often applied to an overhead working site, and a user ties a safety belt between waists and then hooks the safety belt hook at one end of the safety belt to a support such as an electric wire to prevent falling.

An existing safety belt hook, such as a safety hook disclosed in Chinese patent application number 201922327797.7, comprises a hook body, wherein the hook body is movably connected with a connecting rod far away from an opening end, and the hook body is fixedly connected with the connecting rod through a rope; the opening end of the hook body is contacted with a locking piece; the hook body and the connecting rod are also provided with fixing holes for fixing the hook body and the connecting rod again; the side surface of the connecting rod is provided with a guide plate, and a guide groove is arranged on the guide plate; the connecting rod is hinged with the other end of the locking piece, and the locking piece moves along a preset track through the guide groove.

The safety belt hook is unstable in abutting of the locking piece and the hook body, and easily slides relative to the guide groove in a locking state, so that the safety belt hook is separated from abutting of the hook body, and the safety belt hook slides out of the support.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the safety belt hook which is stable and reliable in hanging, improves safety and is convenient to operate.

The technical scheme adopted for solving the technical problems is as follows: the safety belt hook comprises a main hook body, a locking part and a lock catch, wherein the main hook body comprises an open hook part, the hook part is provided with a free end, and the locking part and the lock catch are respectively and rotatably connected with the main hook body, so that the safety belt hook can be kept in a locking state or can be switched to an unlocking state through the rotation of the locking part and the lock catch;

the lock catch is provided with a first abutting end capable of being matched with the free end;

the method is characterized in that:

the lock catch is also provided with a second abutting end, and the locking part is provided with a locking pin;

when the safety belt hook is in a locking state, the second abutting end abuts against the locking pin, so that the first abutting end abuts against the free end, at the moment, the lock catch seals the opening of the hook part, so that the lock catch and the hook part jointly form a sealed space, and the first abutting end abuts against the free end from the free end towards one side in the space;

when the safety belt hook is in an unlocking state, the locking pin is separated from the second abutting end, and the first abutting end is separated from the free end to open a space.

Further, in order to keep the locking pin to be abutted with the second abutting end of the lock catch so as to limit the rotation of the lock catch, the locking part is rotationally connected with the main hook body through a first pin shaft, a torsion spring is arranged on the first pin shaft and is respectively abutted with the main hook body and the locking part, and therefore the locking part keeps a trend of resetting to a locking state.

Further, to facilitate limiting rotation of the shackle from both directions, the shackle is positioned between the first abutment end and the second abutment end at the junction with the main hook body.

Further, in order to facilitate the rotary connection between the lock catch and the main hook body, the lock catch is in rotary connection with the main hook body through a second pin shaft.

Further, in order to keep the shackle capable of abutting against the free end and the locking pin, a spring is provided between the main hook body and a side of the shackle facing the main hook body, and the spring abuts between the shackle and the main hook body, so that the shackle keeps a tendency to return to a locked state.

Further, in order to facilitate the connection of the seat belt hook to the seat belt, the main hook body further includes a hooking portion located at a bottom of the hook portion away from the free end.

Further, in order to improve operation safety, an outer surface of at least one of the main hook body, the locking portion and the locker is coated with an insulating layer.

Compared with the prior art, the utility model has the advantages that: through setting up the end of leaning on the hasp, set up on the locking portion and follow locking portion pivoted locking round pin, through the cooperation of leaning on end and locking round pin, can resist the hasp reliably and rotate to the unblock direction, the operation is also very convenient moreover when the unblock.

Drawings

Fig. 1 is a schematic view (locked state) of a seat belt hook according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a seat belt hook according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a hidden locking portion and gasket of a seat belt hanger according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a seat belt hook according to an embodiment of the present utility model;

fig. 5 is a schematic view of a seat belt hook according to an embodiment of the present utility model (unlocked state).

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for purposes of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and because the disclosed embodiments of the present utility model may be arranged in different orientations, these directional terms are merely for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to orientations opposite or coincident with the direction of gravity. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

Referring to fig. 1 to 4, a seat belt hook comprises a main hook body 1, a locking portion 2 and a buckle 3, wherein the main hook body 1 is provided with a hooking portion 12 and an open hook portion 13, the hook portion 13 is provided with a free end 11, the hooking portion 12 is formed at the end of the hook portion 13 away from the free end 11, the free end 11 is used for being matched with the buckle 3, and the hooking portion 12 is in a circular ring shape and used for being matched with a seat belt and the like. In normal use, the hooking portion 12 is located at the bottom of the hooking portion 13.

The locking part 2 is rotatably connected with the main hook body 1, and the connection part can be positioned on the hook part 13. The locking part 2 is rotationally connected with the main hook body 1 through a first pin shaft 21, a torsion spring 22 is arranged on the first pin shaft 21, and the torsion spring 22 is respectively abutted with the main hook body 1 and the locking part 2, so that the torsion spring 22 can enable the locking part 2 to reset after rotating relative to the main hook body 1.

The locking portion 2 is provided with a locking pin 4, the locking pin 4 is parallel to the first pin shaft 21, and the locking pin 4 rotates along with the locking portion 2. In the locked state, the locking pin 4 may be closer to the hitching section 12 than the first pin 21.

The shackle 3 is also rotatably connected to the main hook body 1, the connection being likewise located between the free end 11 and the hooking portion 12. The lock catch 3 is rotatably connected with the main hook body 1 through the second pin shaft 31, and the axes of the first pin shaft 21 and the second pin shaft 31 are parallel, namely, the rotation axis of the locking part 2 is parallel to the rotation axis of the lock catch 3. A spring 32 is arranged between one side of the lock catch 3 facing the main hook body 1 and the main hook body 1, the spring 32 is abutted between the lock catch 3 and the main hook body 1, and a spring seat can be arranged on the main hook body 1 and/or the lock catch 3 so as to limit the position of the spring 32 and avoid the movement of the spring 32.

The shackle 3 also has a first abutment end 33 for cooperation with the free end 11 of the main hook body 1 and a second abutment end 34 for cooperation with the locking pin 4. The latch 3 cooperates with the hook 13 to close the opening of the hook 13, so that the latch 3 and the hook 13 together form a closed space Q, and the first abutting end 31 is located on a side closer to the inside of the space Q than the free end 11 of the main hook 1, i.e., on a side of the free end 11 facing out of the space Q, and abuts against the free end 11 of the main hook 1, so that the first abutting end 31 can only rotate in the direction of the inside of the space Q. In normal use, the first abutment end 33 is located above the second abutment end 34, and the junction of the shackle 3 and the main hook 1 is located between the two abutment ends. In the locked state, the second abutting end 34 can abut against the locking pin 4, at this time, the lock catch 3 cannot rotate in a manner that the second abutting end 34 is pressed down (the first abutting end 33 rotates inwards towards the space Q), and because the first abutting end 33 abuts against the free end 11 of the main hook 1, the lock catch 3 cannot rotate in a manner that the second abutting end 34 rotates upwards (the first abutting end 33 rotates outwards towards the space Q), so that the abutting locking of the lock catch 3 and the main hook 1 is stable, safe and reliable.

Because the safety belt hook is made of metal materials, the safety belt hook can prevent personnel injury caused by breakage, however, because the safety belt hook is often required to be hung on a high-voltage wire, if the metal materials carelessly contact the wire which is not powered off or the wire which is damaged by an insulating layer, the safety belt hook can possibly cause electric shock injury to a human body. Therefore, in order to improve safety, the outer surface of at least one of the main hook body 1, the locking portion 2, and the locker 3 is coated with an insulating layer (not shown in the drawings), and preferably, the outer surfaces of all three components are coated with an insulating layer.

In the locking state, the torsion spring 22 and the spring 32 are in a natural state, the first abutting end 33 of the lock catch 3 abuts against the free end 11 of the main hook body 1, locking between the lock catch 3 and the main hook body 1 is achieved, a closed space Q is formed between the lock catch 3 and the main hook body 1, at the moment, the second abutting end 32 abuts against the locking pin 4, and the lock catch 3 and the main hook body 1 keep a stable locking state.

When the seat belt hook is required to be hung from other external supports, one end of the locking portion 2, which is far away from the locking pin 4, is pressed in a direction approaching the lock catch 3, so that the position of the locking portion 2, where the locking pin 4 is arranged, rotates in a direction far away from the lock catch 3, and the locking pin 4 can be prevented from abutting against the second abutting end 32, at this time, the lock catch 3 can be pressed to enable the first abutting end 31 to rotate in a direction (rotate in a direction approaching the locking portion 2) in a space Q, the first abutting end 31 is separated from the free end 11 of the main hook body 1, the space Q is not closed, and the external supports can enter through a space between the first abutting end 31 and the free end 11 of the main hook body 1, and the seat belt hook is in an unlocking state, as shown in fig. 5. In the above process, the torsion spring 22 and the elastic member 32 are compressed, after the external support is entered, the lock catch 3 is released, under the action of the restoring force of the spring 32, the lock catch 3 is restored, the first abutting end 31 is abutted against the free end 11 again, meanwhile, the locking part 2 is released, and under the action of the torsion spring 22, the locking pin 4 is restored, and is abutted against the second abutting end 32 of the lock catch 3 again, so that the position of the lock catch 3 is limited again, the space Q cannot be opened, stable and reliable connection is formed, the whole process is very convenient to operate, and one hand can be used for completion.

Claims

1. The safety belt hook comprises a main hook body (1), a locking part (2) and a lock catch (3), wherein the main hook body (1) comprises an open hook part (13), the hook part (13) is provided with a free end (11), the locking part (2) and the lock catch (3) are respectively connected with the main hook body (1) in a rotating way, so that the safety belt hook can be kept in a locking state or can be switched to an unlocking state through the rotation of the locking part (2) and the lock catch (3);

the lock catch (3) is provided with a first abutting end (33) which can be matched with the free end (11);

the method is characterized in that:

the lock catch (3) is also provided with a second abutting end (34), and the locking part (2) is provided with a locking pin (4);

when the safety belt hook is in a locking state, the second abutting end (34) abuts against the locking pin (4) so that the first abutting end (33) abuts against the free end (11), at the moment, the lock catch (3) seals the opening of the hook part (13) to enable the lock catch (3) and the hook part (13) to jointly form a sealed space (Q), and the first abutting end (33) abuts against the free end (11) from one side, facing the space (Q), of the free end (11);

when the seat belt hook is in an unlocked state, the locking pin (4) is separated from the second abutting end (34), and the first abutting end (33) is separated from the free end (11) to open the space (Q).

2. The seat belt hanger of claim 1, wherein: the locking part (2) is rotationally connected with the main hook body (1) through a first pin shaft (21), a torsion spring (22) is arranged on the first pin shaft (21), and the torsion spring (22) is respectively abutted with the main hook body (1) and the locking part (2), so that the locking part (2) keeps a trend of resetting to a locking state.

3. The seat belt hanger of claim 1, wherein: the connecting part of the lock catch (3) and the main hook body (1) is positioned between the first abutting end (33) and the second abutting end (34).

4. A seat belt hanger according to claim 3, wherein: the lock catch (3) is rotationally connected with the main hook body (1) through a second pin shaft (31).

5. The seat belt hanger of claim 1, wherein: a spring (32) is arranged between one side, facing the main hook body (1), of the lock catch (3) and the main hook body (1), and the spring (32) is abutted between the lock catch (3) and the main hook body (1) so that the lock catch (3) keeps a trend of resetting to a locking state.

6. The seat belt hanger of claim 1, wherein: the main hook body (1) further comprises a hanging part (12) positioned at the bottom of the hook part (13) far away from the free end (11).

7. The seat belt hook according to any one of claims 1 to 6, wherein: the outer surface of at least one of the main hook body (1), the locking part (2) and the lock catch (3) is coated with an insulating layer.