CN219526017U - Claw type suspender safety grapple - Google Patents

Abstract

The utility model relates to the technical field of safety hooks, in particular to a claw-shaped sling safety grapple, which comprises: the hook body is provided with a through hole above the hook opening along the width direction of the hook body, a stop pin is arranged in the through hole in a penetrating way and is connected with the inner wall of the through hole in a sliding structure mode, the peripheral wall of the stop pin is provided with a first locking hole, a pin hole is arranged along the thickness direction of the hook body, the through hole is communicated with the outside through the pin hole, a pin shaft is connected with the inner wall of the pin hole in the sliding structure direction, and the pin shaft is matched with the first locking hole in a plug structure mode; the pin shaft is arranged to be matched with the first locking hole, so that the blocking pin is locked at the opening position, and the operation of an operator is facilitated; when the pin shaft is matched with the second locking hole, the stop pin is fixed at the locking position, so that the stop pin is prevented from being opened under the unexpected condition, and the safety performance is greatly improved.

Description

Claw type suspender safety grapple

Technical field:

the utility model relates to the technical field of safety hooks, in particular to a claw-shaped sling safety grapple.

The background technology is as follows:

the claw-shaped grapple is the most common lifting appliance in hoisting machinery, and the claw-shaped sling safety grapple is commonly used for hooking a sling with a certain width.

The utility model relates to an anti-drop lifting hook for a bridge crane, which is disclosed in the national patent of application number 202021482762.7, wherein a limiting groove is formed in the surface of a lifting hook body, a first pressure-resistant layer is fixedly arranged on the inner wall of the limiting groove, protrusions are fixedly arranged on the surface of the first pressure-resistant layer at equal intervals, through holes are formed in the surface of the lifting hook body, a limiting rod is slidably arranged on the inner wall of the through holes, a connecting plate is fixedly arranged at one end of the limiting rod, a second pressure-resistant layer is fixedly arranged on the surface of the limiting rod, a buffer layer is fixedly arranged on the surface of the second pressure-resistant layer, and limiting holes are formed in the surface of the lifting hook body.

The patent utilizes the limiting rod to prevent the steel wire rope, the chain or the hanging strip in the hook body from falling off, but in actual use, an operator always needs to pull the outer end of the limiting rod by one hand to prevent the resetting of the limiting rod under the action of the elastic force of the spring, and the grapple is easily pulled to be deviated during pulling, and inconvenience is brought to the operator when the hanging strip is hooked by the other hand; and in the hoisting process, when the object collides with the limiting rod, the limiting rod is at risk of opening, and the safety is lower.

The utility model comprises the following steps:

in order to solve the technical problems, the utility model provides a claw hook, namely a claw-shaped sling safety claw hook, which solves the technical problems that: when an operator pulls the limiting rod by one hand and hooks the hanging belt by the other hand, inconvenience is brought to the operator. In order to solve the technical problems, the utility model adopts the following technical scheme:

a claw-type sling safety grapple comprising:

the hook body is provided with a through hole above the hook opening along the width direction of the hook body;

the retaining pin is penetrated in the through hole and connected with the inner wall of the through hole in a sliding structure mode, and a first locking hole is formed in the peripheral wall of the retaining pin;

the pin hole is formed along the thickness direction of the hook body, and the through hole is communicated with the outside through the pin hole;

the pin shaft is connected with the inner wall of the pin hole in the sliding structure direction, and is matched with the first locking hole in the plug structure mode.

Further, a plurality of outer ratchets are uniformly distributed on the outer peripheral wall of the pin shaft along the axial direction, inclined teeth are arranged on the upper end face of each outer ratchet, and a second spring is sleeved on the pin shaft at the lower part of each outer ratchet;

the inner circumferential wall of the pin hole is axially provided with inner ratchets, the lower end of each inner ratchet is provided with a clamping groove for guiding the outer ratchets to slide and position, a guide groove is arranged between two adjacent inner ratchets, and the depth of the guide groove is larger than that of each clamping groove;

the button is arranged in the pin hole in a sliding structure mode, the upper end of the button protrudes out of the hook body, the lower portion of the button is uniformly distributed with a preset number of protrusions along the circumferential wall, the protrusions are matched with the clamping grooves or the guide grooves in a sliding structure mode, and the lower end face of the button is provided with edge teeth matched with the helical teeth.

Further, a retainer ring for supporting the second spring is fixedly arranged at the lower part of the inner wall of the pin hole.

Further, the outer end of the stop pin is fixedly provided with a stop head.

Further, the outer end face of the baffle head is fixedly provided with anti-slip particles.

Further, the upper end of the hook body is fixedly provided with a claw, and two sides of the groove at the lower part of the hook body are provided with wide grooves.

Further, the outer peripheral wall of the stop pin is also provided with a second locking hole.

Further, a first spring is sleeved on the outer wall of the ground stop pin in the through hole and used for resetting the stop pin.

The beneficial effects of the utility model are as follows: the pin shaft is arranged to be matched with the first locking hole, so that the blocking pin is locked at the opening position, and the operation of an operator is facilitated; when the pin shaft is matched with the second locking hole, the stop pin is fixed at the locking position, so that the stop pin is prevented from being opened under the unexpected condition, and the safety performance is greatly improved.

Through setting up outer ratchet, helical tooth, second spring, interior ratchet, draw-in groove and guide way structure, form the ball-point pen and press the reset and pop out the structure, press the button, the round pin axle just pops out the location, presses once more, the round pin axle resets the unblock, convenient and fast.

Description of the drawings:

fig. 1 is a schematic diagram of the front view structure of the present utility model.

Fig. 2 is a schematic view of the present utility model in front view partially cut-away.

Fig. 3 is a schematic view of a portion of the left-hand construction of the present utility model.

Fig. 4 is a schematic diagram of the explosion structure of the pin hole, the pin shaft and the button of the utility model.

In the figure:

1. hook body, 2, through-hole, 3, backing pin, 4, first locking hole, 5, first spring, 6, pinhole, 61, interior ratchet, 62, draw-in groove, 63, guide slot, 64, retaining ring, 7, round pin axle, 71, outer ratchet, 72, helical tooth, 73, second spring, 8, button, 81, protruding, 82, edge tooth, 9, sheep's horn, 10, wide groove, 11, backing head, 12, second locking hole.

The specific embodiment is as follows:

for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will now be described in further detail with reference to the accompanying drawings and the following examples, so that the public can better understand the method of practicing the present utility model, and the specific embodiments of the present utility model are as follows:

embodiment one: a claw-type sling safety grapple comprising: the hook comprises a hook body 1, wherein a through hole 2 is formed in the hook body 1 above a hook opening along the width direction of the hook body 1; the retaining pin 3 is arranged in the through hole 2 in a penetrating way and is connected with the inner wall of the through hole 2 in a sliding structure mode, and a first locking hole 4 is formed in the peripheral wall of the retaining pin 3; the pin hole 6 is formed along the thickness direction of the hook body 1, and the through hole 2 is communicated with the outside through the pin hole 6; the pin shaft 7 is connected with the inner wall of the pin hole 6 in the sliding structure direction, the pin shaft 7 is matched with the first locking hole 4 in the plug structure mode, and when the pin shaft 7 is inserted into the first locking hole 4, the stop pin 3 is locked at the opening position, so that an operator can conveniently hang a sling into the hook body, and convenience and rapidness are realized.

Further, the outer end of the stop pin (3) is fixedly provided with a stop head 11, and the outer end surface of the stop head 11 is fixedly provided with anti-slip particles, so that an operator can conveniently pull the stop pin 3.

The fixed sheep horn 9 that is provided with in hook body 1 upper end, hook body 1 lower part slot both sides have been seted up wide groove 10, and the convenience cooperates with the suspender, can also avoid its wearing and tearing, increases suspender life.

In this embodiment, the pin 7 has a cylindrical structure.

In the second embodiment, on the basis of the first embodiment, a first spring 5 is sleeved on the outer wall of the ground blocking pin 3 in the through hole 2 and used for resetting the blocking pin 3, namely, the blocking pin seals the hook opening.

It should be further described that the second locking hole 12 is formed in the outer portion Zhou Bihai of the stop pin 3, and when the pin shaft 7 is inserted into the second locking hole 12, the stop pin 3 is locked in the closed position, so that the stop pin 3 is prevented from being opened due to accidental collision when an article is lifted, and potential safety hazards are eliminated.

In the third embodiment, on the basis of the first embodiment, a plurality of outer ratchets 71 are uniformly distributed on the outer peripheral wall of the pin shaft 7 along the axial direction, inclined teeth 72 are arranged on the upper end surface of the outer ratchets 71, and a second spring 73 is sleeved on the pin shaft 7 at the lower part of the outer ratchets 71; the inner circumferential wall of the pin hole 6 is axially provided with an inner ratchet 61, the lower end of the inner ratchet 61 is provided with a clamping groove 62 for guiding the outer ratchet 71 to slide and position, a guide groove 63 is arranged between two adjacent inner ratchets 61, and the depth of the guide groove 63 is larger than that of the clamping groove 62; the button 8 is arranged in the pin hole 6 in a sliding structure mode, the upper end of the button 8 protrudes out of the hook body 1, a preset number of protrusions 81 are uniformly distributed on the lower portion of the button 8 along the circumferential wall, the protrusions 81 are matched with the clamping grooves 62 or the guide grooves 63 in a sliding structure mode, and edge teeth 82 matched with the inclined teeth 72 are arranged on the lower end face of the button 8. Through setting up outer ratchet, helical tooth, second spring, interior ratchet, draw-in groove and guide way structure, form the ball-point pen and press the reset and pop out the structure, press the button, the round pin axle just pops out the location, presses once more, the round pin axle resets the unblock, convenient and fast.

The retainer ring 64 for supporting the second spring 73 is fixedly arranged at the lower part of the inner wall of the pin hole 6, so that the lower end of the second spring 73 is prevented from being directly contacted with the stop pin 3 to cause abrasion.

The working principle and working process of the utility model are described in the following by the third embodiment:

when the hanging strip is required to be hooked, the button 8 applies pressure, the outer ratchet 71 slides towards the guide groove 63 along the inclined surface on one side of the clamping groove 62 under the drive of the button 8, when the hanging strip is slightly over the forefront position on the other side of the inner ratchet 61, the pressing force is cancelled, the outer ratchet 71 is pushed into the guide groove 63 under the action of the restoring force of the second spring 73 and retreats to the upper part of the guide groove 63, the lower end of the pin shaft 7 retreats from the second locking hole 12 to release the locking, and at the moment, the blocking pin 3 opens the hook opening under the elasticity of the first spring 5 to hook the hanging strip into the hook body.

After the hanging belt is hooked, the blocking head 11 is pressed, the blocking head 11 drives the blocking pin 3 to close the hook opening, the button 8 is pressed again, the button 8 slides downwards, the edge teeth 82 at the front end drive the outer ratchet teeth 71 and the inclined teeth 72 to move downwards, the second spring 73 is pressed at the moment, the inclined teeth 72 are separated from the guide grooves 63, the button 8 is continuously pressed down, the pin shaft 7 rotates leftwards under the action of the inclined teeth 72 and the inclined surfaces of the edge teeth 82, when the outer ratchet teeth 71 slightly exceed the position of the front-most inclined surface at one side of the inner ratchet teeth 61, the operating force of the button 8 is released, at the moment, the pin shaft 7 can retract upwards under the reset action of the second spring 73, the outer ratchet teeth 71 are pushed into the clamping grooves 62 to be clamped, and the pin shaft 7 is positioned in the second pin holes 12 to be locked.

In describing the present utility model, it should be understood that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "front", "rear", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present utility model. Furthermore, the terms "first," "second," "third," and the like 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 the above description, will appreciate that other embodiments are contemplated within the scope of the utility model as described herein.

Claims (8)

1. A claw-type sling safety grapple, comprising:

the hook comprises a hook body (1), wherein a through hole (2) is formed in the hook body (1) above a hook opening along the width direction of the hook body (1);

the retaining pin (3) is penetrated in the through hole (2) and is connected with the inner wall of the through hole (2) in a sliding structure mode, and a first locking hole (4) is formed in the outer peripheral wall of the retaining pin (3);

the pin hole (6), the pin hole (6) is arranged along the thickness direction of the hook body (1), and the through hole (2) is communicated with the outside through the pin hole (6);

the pin shaft (7), the pin shaft (7) is connected with the inner wall of the pin hole (6) in the sliding structure direction, and the pin shaft (7) is matched with the first locking hole (4) in the plug structure mode.

2. The claw-type sling safety grapple of claim 1 wherein: a plurality of outer ratchets (71) are uniformly distributed on the outer peripheral wall of the pin shaft (7) along the axial direction, inclined teeth (72) are arranged on the upper end surface of the outer ratchets (71), and a second spring (73) is sleeved on the pin shaft (7) at the lower part of the outer ratchets (71);

an inner ratchet (61) is arranged on the inner circumferential wall of the pin hole (6) along the axial direction, a clamping groove (62) for guiding the outer ratchet (71) to slide and position is arranged at the lower end of the inner ratchet (61), a guide groove (63) is arranged between two adjacent inner ratchets (61), and the depth of the guide groove (63) is larger than that of the clamping groove (62);

the button (8) is arranged in the pin hole (6) in a sliding structure mode, the upper end of the button (8) protrudes out of the hook body (1), a preset number of protrusions (81) are uniformly distributed on the lower portion of the button (8) along the circumferential wall, the protrusions (81) are matched with the clamping grooves (62) or the guide grooves (63) in a sliding structure mode, and edge teeth (82) matched with the helical teeth (72) are arranged on the lower end face of the button (8).

3. The claw-type sling safety grapple according to claim 2, wherein: the lower part of the inner wall of the pin hole (6) is fixedly provided with a retainer ring (64) for supporting a second spring (73).

4. The claw-type sling safety grapple of claim 1 wherein: the outer end of the baffle pin (3) is fixedly provided with a baffle head (11).

5. The claw-type sling safety grapple of claim 4 wherein: anti-slip particles are fixedly arranged on the outer end face of the baffle head (11).

6. The claw-type sling safety grapple of claim 1 wherein: the upper end of the hook body (1) is fixedly provided with a claw (9), and the two sides of the groove at the lower part of the hook body (1) are provided with wide grooves (10).

7. The claw-type sling safety grapple of claim 1 wherein: the outer Zhou Bihai of the baffle pin (3) is provided with a second locking hole (12).

8. The claw-type sling safety grapple of claim 1 wherein: the outer wall of the ground stop pin (3) in the through hole (2) is sleeved with a first spring (5) for resetting the stop pin (3).