CN216583772U

CN216583772U - Self-locking claw hook for claw chain ring

Info

Publication number: CN216583772U
Application number: CN202122986430.3U
Authority: CN
Inventors: 秦威; 张来星; 张体学; 孟海亮; 王秀刚; 付善举; 张熙
Original assignee: Shandong Shenli Rigging Co ltd
Current assignee: Shandong Shenli Rigging Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-24
Anticipated expiration: 2031-12-01

Abstract

The application relates to couple technical field, especially relate to from locking-type goat's horn chain ring grapple: the hook comprises a hook body, a coupler knuckle, a pin shaft A and a self-locking safety device which is arranged on the hook body and can lock the coupler knuckle to swing, wherein a through groove is formed in the upper part of the hook body, and the coupler knuckle is connected with the through groove in a rotating mode through the pin shaft A; the lower end of the hook body is bent to form a groove, concave chain sockets matched with the transverse chain links are arranged on the hook body on two sides of the bottom of the groove, and a groove matched with the vertical chain links is arranged on the hook body at the bottom of the groove; by arranging the self-locking safety device, the chain is prevented from falling off from the groove in the using process, and the safety is improved; the chain nest design of department innovation on the coupler body can enough adjust the length of chain, can prevent again that the coupler body from cuting the chain, increases the life of chain link, reasonable in design, and the reliability is high.

Description

Self-locking claw hook for claw chain ring

The technical field is as follows:

the application relates to the technical field of hooks, in particular to a self-locking claw hook for a goat's horn chain ring.

The background art comprises the following steps:

the national utility model patent with application number 201720386791.5 applied by my company: a claw hook with claw chain rings comprises a hook body and double ring buckles, wherein the bent hook body forms a groove, and is characterized in that a ring buckle seat is arranged at the upper part of the hook body, three insertion blocks matched with the double ring buckles are arranged at the upper end of the ring buckle seat, and the double ring buckles and the insertion blocks of the ring buckle seat are fixedly connected through a pin shaft II; two side wing convex parts are respectively arranged on two sides of the hook body, and the two side wing convex parts on each side are respectively arranged on the hook body on two sides of the groove bottom; a claw fork head of two fork arms is arranged below the hook body, pin shaft holes are transversely arranged on the fork arms, and pin shafts I are inserted into the pin shaft holes; an annular clamping groove is formed in the middle section of the pin shaft II, a clamping ring is clamped on the clamping groove and inserted into the ring seat, and the clamping ring is tightly attached to an inward-convex ring platform at the left end of the ring seat; the right side of the clamping groove is provided with a key groove, and a positioning key is inserted into the key groove.

The problem that the service life of the chain is short due to the fact that the service length of the chain is adjusted and a welding joint of the first chain buckle is easy to damage is well solved; however, in long-term use, we have found that there are 2 disadvantages to this grapple:

1. the flank convex part that sets up is worn and torn easily in long-term use, can't effectively fix the link, has the potential safety hazard.

2. When the chain is hoisted, a locking structure is not arranged, and the chain is easy to fall off in the groove.

The utility model has the following contents:

the utility model provides a self-locking claw hook for a claw chain ring, which overcomes the defects in the background art.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

the self-locking claw hook comprises a hook body, a knuckle, a pin shaft A and a self-locking safety device which is arranged on the hook body and can lock the knuckle to swing, wherein the upper part of the hook body is provided with a through groove, and the knuckle is connected with the through groove in a rotating mode through the pin shaft A;

the hook body lower extreme bending forms the slot, and slot bottom both sides are provided with on the hook body with horizontal chain link complex interior concavity chain nest, be provided with on the hook body of slot bottom with vertical chain link complex recess.

Furthermore, a claw in a fork arm structure is arranged at the bottom of the hook body, a pin hole is transversely formed in the claw, and a pin shaft B is arranged in the pin hole.

Furthermore, an elastic cylindrical pin is further arranged, and the pin shaft B is connected with the pin hole through the elastic cylindrical pin.

Furthermore, a single ring is arranged at the upper part of the coupler knuckle, a concave-convex slot matched with the single ring and a pin shaft C are arranged at the upper end of the coupler knuckle, and the single ring is connected with the concave-convex slot through the pin shaft C.

Furthermore, the outer wall of the coupler knuckle is provided with a limiting bump.

Furthermore, safety device protective wings are arranged on the hook bodies on the two sides of the outer portion of the through groove, and the safety device protective wings protrude out of the side walls of the hook bodies.

Further, the hook body is provided with a mounting hole.

The utility model has the beneficial effects that: by arranging the self-locking safety device, the chain is prevented from falling off from the groove in the using process, and the safety is improved; the chain nest design of department innovation on the coupler body can enough adjust the length of chain, can prevent again that the coupler body from cuting the chain, increases the life of chain link, reasonable in design, and the reliability is high.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a hook and a chain according to an embodiment of the present invention;

fig. 3 is a schematic view of a hook and a chain according to another embodiment of the present invention.

In the figure:

1. the safety guard comprises a hook body, 2 parts of a hook tongue, 3 parts of a through groove, 4 parts of pin shafts A and 5 parts of a safety guard wing, 6 parts of a groove, 7 parts of a chain pit, 8 parts of a claw, 9 parts of a pin shaft B and 10 parts of an elastic cylindrical pin, 11 parts of a pin hole, 12 parts of a single ring, 13 parts of a pin shaft C and 14 parts of a concave-convex slot, 15 parts of a limiting bump, 16 parts of a groove, 17 parts of a mounting hole, 18 parts of a chain link A and 19 parts of a chain link B and 20 parts of a chain link C.

The specific implementation mode is as follows:

to further clarify the objects, technical solutions and advantages of the present invention, the present invention will now be described in further detail with reference to the accompanying drawings and the following examples so that the public may better understand the method of practice of the present invention, and the specific embodiments of the present invention are:

in the first embodiment, as shown in fig. 2, the self-locking claw hook for the knuckle chain ring comprises a hook body 1, a knuckle 2, a pin shaft a4 and a self-locking safety device which is arranged on the hook body 1 and can lock the knuckle 2 to swing, wherein the self-locking safety device is a safety hook self-locking safety device with the application number of 201920055475.9 applied by the company of our;

the upper part of the hook body 1 is provided with a through groove 3, and the coupler knuckle 2 is connected with the through groove 3 in a rotating mode through a pin shaft A4; by arranging the self-locking safety device, the chain is prevented from falling off from the groove, and the safety is improved;

the crooked slot 6 that forms of coupler body 1 lower extreme, 6 bottom both sides of slot are provided with on the coupler body 1 with horizontal chain link complex concave chain nest 7, be provided with on the coupler body 1 of slot 6 bottom with vertical chain link complex recess 16, chain nest 7 and recess 16's design, just in time with adjacent chain link block on the coupler body 1, prevent that the coupler body 1 from shearing the chain, increase the life of chain link.

The single ring 12 is arranged on the upper portion of the coupler knuckle 2, the concave-convex slot 14 matched with the single ring 12 and the pin shaft C13 are arranged at the upper end of the coupler knuckle 2, the single ring 12 is connected with the concave-convex slot 14 through the pin shaft C13, the single ring 12 can meet different use scenes of the grapple, and the use range is enlarged.

The outer wall of the coupler knuckle 2 is provided with a limiting convex block 15, and the limiting convex block 15 can limit the rotation range of the lock tongue 2, so that the self-locking safety device is prevented from being damaged.

The hook body 1 of logical groove 3 outside both sides is provided with the protector flap 5 on, and protector flap 5 protrusion in the side wall of hook body 1, the design of protector flap 5 can prevent that at the hoist and mount in-process, auto-lock safeties is bumped by the mistake and is opened.

Be provided with mounting hole 17 on the coupler body 1, mounting hole 17 is used for placing the chip of storing product information, and the staff of being convenient for operates and uses and traces back product information.

The working principle and the working process of the utility model are as follows: the lock tongue 2 is opened, the chain link A18 is clamped in the groove 6, the two adjacent chain links B19 of the chain link A18 are clamped in the chain socket 7, the chain link C20 arranged at one end, far away from the chain link A18, of the chain link B19 is clamped in the groove 16, the connection is clamped in the chain socket 7 and the groove 16, the chain is lifted together when the hook body 1 is lifted, the chain is limited in the groove 6 by the lock tongue 2, and the lifting safety is guaranteed.

As shown in fig. 3, as another embodiment of the present application, on the basis of the first embodiment, a claw 8 having a fork arm structure is further disposed at the bottom of the hook body 1, a pin hole 11 is transversely disposed on the claw 8, and a pin B9 is disposed in the pin hole 11; an elastic cylindrical pin 10 is further arranged, and the pin shaft B9 is connected with the pin hole 11 through the elastic cylindrical pin 10.

The working principle and the working process of the utility model are equivalent to that in the working principle and the working process of the first embodiment, the chain link at the end part of the chain is clamped on the pin shaft B9 to realize the fixation of the end part of the chain, on the basis of the first embodiment, one more safety guarantee is provided, and when the length of the chain is not required to be adjusted, the chain can be directly hooked on the pin shaft B9 to be hoisted.

In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "front", "rear", "left lower", "right upper", "outer", "clockwise", "counterclockwise", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. While the utility model has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that other embodiments can be devised which do not depart from the scope of the utility model as disclosed herein.

Claims

1. Self-locking claw hook for claw chain ring, which is characterized in that: the hook comprises a hook body (1), a coupler knuckle (2), a pin shaft A (4) and a self-locking safety device which is arranged on the hook body (1) and can lock the coupler knuckle (2) to swing, wherein a through groove (3) is formed in the upper part of the hook body (1), and the coupler knuckle (2) is connected with the through groove (3) in a rotating mode through the pin shaft A (4);

the lower end of the hook body (1) is bent to form a groove (6), concave chain sockets (7) matched with the transverse chain links are arranged on the hook body (1) on two sides of the bottom of the groove (6), and grooves (16) matched with the vertical chain links are arranged on the hook body (1) at the bottom of the groove (6).

2. The self-locking claw link of a claw link according to claim 1, characterized in that: the bottom of the hook body (1) is provided with a claw (8) in a fork arm structure, a pin hole (11) is transversely arranged on the claw (8), and a pin shaft B (9) is arranged in the pin hole (11).

3. The self-locking claw link of a claw link according to claim 2, characterized in that: the pin shaft B (9) is connected with the pin hole (11) through the elastic cylindrical pin (10).

4. The self-locking claw link of a claw link according to claim 1, characterized in that: the upper part of the coupler knuckle (2) is provided with a single ring (12), the upper end of the coupler knuckle (2) is provided with a concave-convex slot (14) and a pin shaft C (13) which are matched with the single ring (12), and the single ring (12) is connected with the concave-convex slot (14) through the pin shaft C (13).

5. The self-locking claw link of a claw link according to claim 1, characterized in that: the outer wall of the coupler knuckle (2) is provided with a limit bump (15).

6. The self-locking claw link of a claw link according to claim 1, characterized in that: safety device protecting wings (5) are arranged on the hook bodies (1) on the two sides of the outer portion of the through groove (3), and the safety device protecting wings (5) protrude out of the side walls of the hook bodies (1).

7. The self-locking claw link of a claw link according to claim 1, characterized in that: the hook body (1) is provided with a mounting hole (17).