CN220011871U - Sheep's horn formula auto-lock safety hook - Google Patents
Sheep's horn formula auto-lock safety hook Download PDFInfo
- Publication number
- CN220011871U CN220011871U CN202321579416.4U CN202321579416U CN220011871U CN 220011871 U CN220011871 U CN 220011871U CN 202321579416 U CN202321579416 U CN 202321579416U CN 220011871 U CN220011871 U CN 220011871U
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- Prior art keywords
- groove
- supporting arm
- hook body
- claw
- hook
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- 241001494479 Pecora Species 0.000 title description 3
- 210000000078 claw Anatomy 0.000 claims abstract description 10
- 230000000670 limiting effect Effects 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a claw-shaped self-locking safety hook, which relates to the field of rigging and comprises a hook body, a supporting arm and a spanner, wherein the top of the supporting arm is provided with a claw head for rope tying; the top of the hook body is provided with a containing groove, the supporting arm is arranged in the containing groove, and the supporting arm is rotationally connected with the hook body through a connecting shaft; the spanner is arranged in the accommodating groove and is rotationally connected with the hook body through a cylindrical pin, a torsion spring is sleeved on the cylindrical pin, and two ends of the torsion spring are respectively propped against the spanner and the hook body; the front end of the spanner is provided with a latch for supporting the supporting arm, the rear end of the spanner is provided with a pressing handle for spanner, the supporting arm is provided with a clamping recess corresponding to the latch, and the supporting arm is provided with a limit groove above the clamping recess, and the limit groove is in limit fit with the latch; the hook body is provided with a concave groove at a position corresponding to the pressing handle. According to the utility model, the limit groove is matched with the spanner, so that the opening amplitude of the swing arm is limited, fingers are prevented from being injured during the use process, and the use safety is improved.
Description
Technical Field
The utility model relates to the field of rigging, in particular to a claw-type self-locking safety hook.
Background
The claw-shaped self-locking safety hook is a rigging which is the most common in hoisting machinery and is widely applied to various industries such as ports, electric power, steel, shipbuilding, construction and the like. As shown in fig. 1, the conventional claw-type self-locking safety hook mainly comprises a hook body 1, a supporting arm 2 and a pulling buckle 3, wherein the supporting arm 2 is rotatably connected to the hook body 1 through a connecting shaft, a claw head for rope tying is integrally formed at the top of the supporting arm 2, the pulling buckle 3 is arranged in a containing groove of the hook body, the pulling buckle 3 is rotatably connected to the hook body through a cylindrical pin, a torsion spring is sleeved on the cylindrical pin, and two ends of the torsion spring respectively support the pulling buckle 3 and the hook body 1. The pulling buckle 3 is provided with a latch for supporting the supporting arm 2, the supporting arm 2 is provided with a clamping recess corresponding to the latch, the closing state of the supporting arm 2 is kept through the supporting limiting action of the latch and the clamping recess, the pulling buckle 3 is pulled downwards, and the supporting arm 2 can be opened.
The safety hook with the structure has the following problems: when the pushing button is pressed to open the supporting arm, the supporting arm is easy to open to be too large, so that the claw head is extruded to hurt the fingers of a person.
Disclosure of Invention
Based on the problems, the utility model aims to provide a claw-shaped self-locking safety hook, which adopts the following technical scheme:
the utility model provides a claw-shaped self-locking safety hook which comprises a hook body, a supporting arm and a pulling buckle, wherein the top of the supporting arm is provided with a claw head for rope tying, and the claw head is provided with a transverse pin; the top of the hook body is provided with a containing groove, the supporting arm is arranged in the containing groove, and the supporting arm is rotationally connected with the hook body through a connecting shaft; the pulling buckle is arranged in the accommodating groove, the pulling buckle is rotationally connected with the hook body through a cylindrical pin, a torsion spring is sleeved on the cylindrical pin, and two ends of the torsion spring are respectively propped against the pulling buckle and the hook body; the front end of the spanner is provided with a latch for propping against the propping arm, the rear end of the spanner is provided with a pressing handle for spanner, the propping arm is provided with a clamping recess corresponding to the latch, the propping arm is provided with a limit groove above the clamping recess, and the limit groove is in limit fit with the latch; the hook body is provided with a concave groove at a position corresponding to the pressing handle.
Preferably, the concave groove is arc-shaped.
Preferably, a sliding rail is arranged on the outer wall surface of the upper part of the hook body, a limiting sliding block capable of sliding up and down is connected to the sliding rail in a sliding and clamping mode, and the front end of the limiting sliding block is abutted to the bottom of the pressing handle.
Preferably, the sliding rail and the hook body are integrally formed.
Preferably, the limit sliding block comprises a sliding block body, the bottom surface of the sliding block body is provided with a sliding groove matched with the sliding rail in a sliding clamping manner, the front end of the sliding groove is of a closed structure, and the rear end of the sliding groove is of an open structure; the rear end of the sliding block body is provided with a detachable tail plate, and the front end of the sliding block body is provided with a bending section.
Preferably, a groove is formed in the tail end of the hook body, a protrusion is arranged at the lower end of the supporting arm, and the protrusion is matched with the groove.
Compared with the prior art, the utility model has the beneficial technical effects that:
according to the utility model, the limit groove is matched with the spanner, so that the opening amplitude of the swing arm is limited, fingers are prevented from being injured during the use process, and the use safety is improved.
Drawings
The utility model is further described with reference to the following description of the drawings.
FIG. 1 is a schematic view of a front view of a self-locking safety hook according to the prior art;
FIG. 2 is a schematic view showing a closed state of a claw-type self-locking safety hook according to an embodiment of the present utility model;
FIG. 3 is a schematic view illustrating an opened state of a claw-type self-locking safety hook according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a hook body according to an embodiment of the present utility model;
FIG. 5 is a schematic structural diagram of a non-contact state between a limit slider and a pressing handle in a second embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a contact state between a limit slider and a pressing handle in a second embodiment of the present utility model;
fig. 7 is a schematic structural diagram of a limit slider in a second embodiment of the present utility model.
Reference numerals illustrate: 1. a hook body; 101. a receiving groove; 102. a concave groove; 103. a groove; 2. a holding arm; 201. a clamping recess; 202. a limit groove; 203. a protrusion; 3. pulling and buckling; 301. latch teeth; 302. pressing a handle; 4. sheep horn head; 401. a transverse pin; 5. a cylindrical pin; 6. a torsion spring; 7. a connecting shaft; 8. a limit sliding block; 801. a slider body; 802. a chute; 803. a tail plate; 804. a curved section; 9. a slide rail.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments.
Example 1
As shown in fig. 2 to 4, the embodiment discloses a claw-type self-locking safety hook, which comprises a hook body 1, a supporting arm 2 and a spanner 3, wherein the top of the supporting arm 2 is provided with a claw head 4 for rope tying, and the claw head 4 is provided with a transverse pin 401; the top of the hook body 1 is provided with a containing groove 101, the supporting arm 2 is arranged in the containing groove 101, and the supporting arm 2 is rotationally connected with the hook body 1 through a connecting shaft 7; the pulling buckle 3 is arranged in the accommodating groove 101, the pulling buckle 3 is rotationally connected with the hook body 1 through a cylindrical pin 5, a torsion spring 6 is sleeved on the cylindrical pin 5, and two ends of the torsion spring 6 are respectively propped against the pulling buckle 3 and the hook body 1; the front end of the spanner 3 is provided with a latch 301 for supporting the supporting arm 2, the rear end of the spanner 3 is provided with a pressing handle 302 for spanner, and the supporting arm 2 is provided with a latch 201 corresponding to the latch 301. The closed state of the holding arm 2 is maintained by the holding limiting action of the latch 301 and the latch 201.
In this embodiment, a limiting groove 202 is disposed above the latch 201 on the holding arm 2, and the limiting groove 202 is in limiting fit with the latch 301; after the pressing handle 302 is pressed to release the abutting limiting function of the latch 301 and the concave 201, the abutting arm 2 can be opened, and when the abutting arm 2 rotates anticlockwise after being opened, the latch 301 can be embedded into the limiting groove 202 to limit the continuing rotation of the abutting arm 2, so that the finger of a person is prevented from being injured by the claw 4.
Meanwhile, in order to further protect the finger, in this embodiment, a concave groove 102 is provided on the hook body 1 at a position corresponding to the pressing handle 302, and the concave groove 102 enlarges the space for finger operation, so as to further protect the finger. In this embodiment, the concave groove 102 has a circular arc shape.
As shown in fig. 3, after the latch 301 is embedded in the limiting groove 202, the latch 301 can enable the holding arm 2 to keep the current open state, so that the hook cannot be closed before no bearing, and the operation is convenient.
As shown in fig. 2 and 3, in this embodiment, a groove 103 is provided at the tail end of the hook body 1, and a protrusion 203 is provided at the lower end of the holding arm 2, and when the safety hook is closed, the protrusion 203 slides into the groove 103 to cooperate with the groove 103, so that the stability of the holding arm 2 in the locked state is improved.
Example two
As shown in fig. 5 to 6, in order to further improve the safety of the hook, in this embodiment, on the basis of the technology of the first embodiment, a sliding rail 9 is disposed on the outer wall surface of the upper portion of the hook body 1, a limiting slider 8 capable of sliding up and down is slidably clamped on the sliding rail 9, and the limiting slider 8 slides up along the sliding rail 9, so that the front end of the limiting slider 8 abuts against the bottom of the pressing handle 302, and thus, the situation that the trigger 3 is pressed and pulled under unexpected conditions can be avoided, and the trigger 3 is opened unexpectedly can be avoided.
As shown in fig. 7, the limit slider 8 includes a slider body 801, a sliding groove 802 slidably engaged with the sliding rail 9 is provided on the bottom surface of the slider body 801, and the front end of the sliding groove 802 is in a closed structure and the rear end thereof is in an open structure. The rear end of the slider body 801 is provided with a tail plate 803, and the tail plate 803 is fixed on the slider body 801 through bolts, so that the limit slider 8 is prevented from falling off the slide rail 9 when sliding.
The front end of the slider body 801 is provided with a bending section 804, and when the limit slider 8 slides upwards along the sliding rail 9, the bending section 804 can just extend to the bottom of the pressing handle 302, so as to form an interference effect on the pressing handle 302.
In this embodiment, the slide rail 9 is integrally formed with the hook body 1. The limit slider 8 can be made of plastic, and the size of the chute 802 is smaller than that of the slide rail 9, so that when the limit slider 8 slides, certain damping exists.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (6)
1. The claw-shaped self-locking safety hook comprises a hook body (1), a supporting arm (2) and a spanner buckle (3), wherein a claw head (4) for rope tying is arranged at the top of the supporting arm (2), and a transverse pin (401) is arranged on the claw head (4); the top of the hook body (1) is provided with a containing groove (101), the supporting arm (2) is arranged in the containing groove (101), and the supporting arm (2) is rotationally connected with the hook body (1) through a connecting shaft (7); the pulling buckle (3) is arranged in the accommodating groove (101), the pulling buckle (3) is rotationally connected with the hook body (1) through a cylindrical pin (5), a torsion spring (6) is sleeved on the cylindrical pin (5), and two ends of the torsion spring (6) are respectively propped against the pulling buckle (3) and the hook body (1); the front end of pulling knot (3) is provided with and is used for supporting to hold latch (301) of arm (2) is held, the rear end of pulling knot (3) is provided with and is used for pulling press handle (302), it is provided with card concave (201) to hold on arm (2) to correspond latch (301), its characterized in that: a limiting groove (202) is formed in the supporting arm (2) above the clamping groove (201), and the limiting groove (202) is in limiting fit with the clamping tooth (301); the hook body (1) is provided with a concave groove (102) at a position corresponding to the pressing handle (302).
2. The claw-type self-locking safety hook according to claim 1, wherein: the concave groove (102) is arc-shaped.
3. The claw-type self-locking safety hook according to claim 1, wherein: the novel hook is characterized in that a sliding rail (9) is arranged on the outer wall surface of the upper portion of the hook body (1), a limiting sliding block (8) capable of sliding up and down is connected to the sliding rail (9) in a sliding and clamping mode, and the front end of the limiting sliding block (8) is abutted to the bottom of the pressing handle (302).
4. A claw-type self-locking safety hook according to claim 3, wherein: the sliding rail (9) and the hook body (1) are integrally formed.
5. A claw-type self-locking safety hook according to claim 3, wherein: the limiting sliding block (8) comprises a sliding block body (801), a sliding groove (802) which is in sliding clamping fit with the sliding rail (9) is arranged on the bottom surface of the sliding block body (801), the front end of the sliding groove (802) is of a closed structure, and the rear end of the sliding groove is of an open structure; the rear end of the sliding block body (801) is provided with a detachable tail plate (803), and the front end of the sliding block body (801) is provided with a bending section (804).
6. The claw-type self-locking safety hook according to claim 1, wherein: the tail end of the hook body (1) is provided with a groove (103), the lower end of the supporting arm (2) is provided with a protrusion (203), and the protrusion (203) is matched with the groove (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321579416.4U CN220011871U (en) | 2023-06-20 | 2023-06-20 | Sheep's horn formula auto-lock safety hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321579416.4U CN220011871U (en) | 2023-06-20 | 2023-06-20 | Sheep's horn formula auto-lock safety hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220011871U true CN220011871U (en) | 2023-11-14 |
Family
ID=88684628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321579416.4U Active CN220011871U (en) | 2023-06-20 | 2023-06-20 | Sheep's horn formula auto-lock safety hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220011871U (en) |
-
2023
- 2023-06-20 CN CN202321579416.4U patent/CN220011871U/en active Active
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| GR01 | Patent grant | ||
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