CN220412610U - Lifting appliance with self-locking device - Google Patents

Abstract

The utility model relates to a lifting appliance with a self-locking device, which comprises a lifting ring, a pull rod, a self-locking piece and two clamping jaws, wherein the pull rod is vertically arranged, and the lifting ring is vertically and fixedly arranged at the upper end of the pull rod; the two clamping jaws are oppositely arranged below the pull rod, and the upper ends of the clamping jaws are respectively and rotatably connected with the lower end of the pull rod; the self-locking piece is arranged on the pull rod and used for locking or unlocking the two clamping jaws. The lifting appliance has the beneficial effects of simple structure, reasonable design, safety and reliability, and can realize automatic locking of the lifting appliance and avoid falling off.

Description

Lifting appliance with self-locking device

Technical Field

The utility model relates to the technical field of cranes, in particular to a lifting appliance with a self-locking device.

Background

The crane is the hoisting equipment commonly used in the prior art, but the current hoist lacks self-locking device, easily takes place to open automatically when handling, during the assembly, has the potential safety hazard that drops.

Disclosure of Invention

The utility model provides a lifting appliance with a self-locking device, and aims to solve the problem that the lifting appliance in the prior art does not have a self-locking function.

The technical scheme for solving the technical problems is as follows:

the lifting appliance with the self-locking device comprises a lifting ring, a pull rod, a self-locking piece and two clamping jaws, wherein the pull rod is vertically arranged, and the lifting ring is vertically and fixedly arranged at the upper end of the pull rod; the two clamping jaws are oppositely arranged below the pull rod, and the upper ends of the clamping jaws are respectively and rotatably connected with the lower end of the pull rod; the self-locking piece is arranged on the pull rod and used for locking or unlocking the two clamping jaws.

The beneficial effects of the utility model are as follows: in the hoisting process, the hoisting ring is connected with the crane, the lower ends of the two clamping jaws clamp the article to be hoisted, and the two clamping jaws are locked through the self-locking piece to clamp the article, so that the article is prevented from falling off;

after the articles are sent to the set positions, the self-locking piece loosens the two clamping jaws, and the two clamping jaws loosen the articles, so that the lifting is convenient.

The lifting appliance is simple in structure and reasonable in design, can realize automatic locking of the lifting appliance, avoids falling, and is safe and reliable.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the self-locking piece comprises a fixed sleeve, the fixed sleeve is movably sleeved outside the pull rod, and the fixed sleeve moves downwards to be sleeved outside the upper ends of the two clamping jaws to enable the lower ends of the two clamping jaws to be close to each other, or moves upwards to loosen the upper ends of the two clamping jaws to enable the lower ends of the two clamping jaws to be far away from each other.

The lifting ring is connected with the crane in the lifting process, the lower ends of the two clamping jaws clamp the article to be lifted, and the fixing sleeve moves downwards to enable the two clamping jaws to clamp the article and position the article so as to clamp the article and prevent the article from falling;

after the article is sent to the set position, the fixed sleeve moves upwards to loosen the two clamping jaws, so that the two clamping jaws loosen the article, and the lifting is convenient.

Further, the parts of the two clamping jaws close to the upper ends of the clamping jaws are fixedly connected through springs.

The further scheme has the beneficial effects that when the two clamping jaws are fixed by the fixing sleeve so that the two clamping jaws clamp objects, the springs are in a compressed state; after the fixed sleeve loosens the two clamping jaws, the two clamping jaws are automatically separated under the action of the elastic force of the spring so as to release articles, the structure is simple, the design is reasonable, the automatic return of the two clamping jaws can be realized through the spring, the operation is simple and convenient, and the time and the labor are saved.

Further, the cross section of the fixing sleeve is of a rectangular structure.

The fixing sleeve has the beneficial effects that the fixing sleeve is reasonable in shape and design, and can move up and down to clamp or loosen the two clamping jaws.

Further, a locking pin group is arranged on the fixing sleeve, a locking hole group is arranged on the clamping jaw, and the locking pin group can be inserted into or withdrawn from the locking hole group so as to fix or loosen the fixing sleeve.

The fixing sleeve has the beneficial effects of simple structure, reasonable design, convenient operation, time saving and labor saving, and can be fixed by matching the locking pin group with the locking hole group.

Further, the locking pin group comprises at least one locking pin, and the locking pin is movably arranged on the fixed sleeve; the locking hole group comprises at least one locking hole arranged on any clamping jaw, and the locking pin can be inserted into or withdrawn from the locking hole.

The further scheme has the beneficial effects that when the locking is performed, the locking pin is manually inserted into the locking hole so as to fix the fixing sleeve; or the locking pin is manually pulled out of the locking hole to loosen the fixing sleeve, so that the operation is simple and convenient, and the time and the labor are saved.

Further, the self-locking piece further comprises a fixing plate and a plurality of tension springs, wherein the fixing plate is fixedly sleeved on the pull rod and is positioned above the fixing sleeve; the tension springs are arranged between the fixed plate and the fixed sleeve, and are uniformly distributed at intervals along the circumference of the pull rod, and two ends of the tension springs are respectively connected with the fixed plate and the fixed sleeve.

The fixing sleeve has the beneficial effects that the fixing sleeve is simple in structure and reasonable in design, the fixing sleeve can be installed through the tension springs, the vertical movement of the fixing sleeve is not affected, automatic return can be achieved under the action of the elasticity of the tension springs when the fixing sleeve is loosened, and the fixing sleeve is simple and convenient to operate and saves time and labor.

Further, the fixing plate is of an annular plate-shaped structure.

The fixing plate has the beneficial effects that the fixing plate is reasonable in structural design, and the fixing plate is conveniently arranged on the pull rod and a plurality of tension springs are conveniently arranged.

Further, the upper ends of the fixing plate and the fixing sleeve are provided with a plurality of pairs of through holes relatively, and two ends of the tension springs are respectively buckled into the plurality of pairs of through holes.

The tension spring has the beneficial effects of simple structure, reasonable design, convenient assembly and disassembly of the tension spring and no influence on the up-and-down movement of the fixed sleeve.

Further, the number of the tension springs is two, and the two tension springs are distributed oppositely.

The technical scheme has the beneficial effects that the number of the tension springs is reasonable in design, the tension springs are convenient to assemble and disassemble, and the up-and-down movement of the fixing sleeve is not influenced.

Drawings

FIG. 1 is a schematic perspective view of a jaw in the present utility model;

FIG. 2 is a front view of the utility model with the jaws open;

FIG. 3 is a side view of the utility model with the jaws open;

FIG. 4 is a top view of the utility model with the jaws open;

FIG. 5 is a schematic perspective view of the clamping jaw of the present utility model;

FIG. 6 is a front view of the jaw of the present utility model as locked;

FIG. 7 is a side view of the jaw of the present utility model as locked;

fig. 8 is a top view of the jaw of the present utility model in the locked position.

In the drawings, the list of components represented by the various numbers is as follows:

1. a hanging ring; 2. a pull rod; 3. a clamping jaw; 4. a fixed sleeve; 5. a spring; 6. a locking pin; 7. a locking hole; 8. a fixing plate; 9. and a tension spring.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices 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 present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

As shown in fig. 1 to 8, the present embodiment provides a lifting appliance with a self-locking device, which includes a lifting ring 1, a pull rod 2, a self-locking member and two clamping jaws 3, wherein the pull rod 2 is vertically arranged, and the lifting ring 1 is vertically and fixedly installed at the upper end of the pull rod 2; the two clamping jaws 3 are oppositely arranged below the pull rod 2, and the upper ends of the clamping jaws are respectively and rotatably connected with the lower end of the pull rod 2; the self-locking piece is arranged on the pull rod 2 and is used for locking or unlocking the two clamping jaws 3.

In the hoisting process, the hoisting ring 1 is connected with a crane, the lower ends of the two clamping jaws 3 clamp an article to be hoisted, and the two clamping jaws 3 are locked through the self-locking piece to clamp the article, so that the article is prevented from falling;

after the article is sent to the set position, the self-locking piece loosens the two clamping jaws 3, and the two clamping jaws loosen the article, so that the lifting is convenient.

Preferably, in this embodiment, the suspension ring 1 is preferably in a ring structure.

Preferably, in this embodiment, each clamping jaw 3 is preferably in a T-shaped structure, which is formed by splicing a first plate and a second plate that are perpendicular to each other, wherein the upper end of the first plate is rotatably connected to the lower end of the pull rod 2, and the lower end of the first plate is fixedly connected to the center of the second plate.

In addition, the cross section of the second plate is preferably of a T-shaped structure, so that the design is reasonable, and the article can be clamped more easily.

Preferably, in this embodiment, the pull rod 2 is preferably a circular rod-shaped structure.

The embodiment has simple structure and reasonable design, can realize the automatic locking of the lifting appliance, avoids falling off, and is safe and reliable.

Example 2

On the basis of embodiment 1, in this embodiment, the self-locking member includes a fixing sleeve 4, the fixing sleeve 4 is movably sleeved outside the pull rod 2, and the fixing sleeve 4 can move downward to be sleeved outside the upper ends of the two clamping jaws 3 so as to enable the lower ends of the two clamping jaws 3 to be close to each other, or move upward to loosen the upper ends of the two clamping jaws 3 so as to enable the lower ends of the two clamping jaws 3 to be far away from each other.

In the hoisting process, the hoisting ring 1 is connected with a crane, the lower ends of the two clamping jaws 3 clamp an article to be hoisted, and the fixing sleeve 4 moves downwards to enable the two clamping jaws 3 to clamp the article and position the article so as to clamp the article and prevent the article from falling;

after the article is sent to the set position, the fixed sleeve 4 moves upwards to loosen the two clamping jaws 3, so that the two clamping jaws 3 loosen the article, and the lifting is convenient.

Alternatively, the self-locking member may take other configurations, for example, the self-locking member includes a clip including two clip bodies, the two clip bodies having a through hole therethrough, and bolts installed in the two pairs of through holes to connect the two clip bodies. In addition, the two clamping jaws 3 are respectively provided with a limiting groove on one side far away from each other, the two clamping hoop bodies are respectively arranged at the two limiting grooves, and the two ends of the clamping hoop bodies are respectively detachably connected through bolts.

Example 3

In this embodiment, the two clamping jaws 3 are fixedly connected with each other by a spring 5 at a position near the upper end of the clamping jaw.

The fixing sleeve 4 fixes the two clamping jaws 3, so that when the two clamping jaws 3 clamp an article, the spring 5 is in a compressed state; after the two clamping jaws 3 are loosened by the fixing sleeve 4, the two clamping jaws 3 are automatically separated under the action of the elastic force of the spring 5 to release articles, the structure is simple, the design is reasonable, the automatic return of the two clamping jaws 3 can be realized through the spring 5, the operation is simple and convenient, and the time and the labor are saved.

Preferably, in this embodiment, the spring 5 is horizontally disposed, and two ends of the spring are fixedly connected to the two clamping jaws 3 near the upper ends thereof.

Example 4

In this embodiment, the cross section of the fixing sleeve 4 has a rectangular structure on the basis of any one of embodiments 2 to 3.

The fixing sleeve 4 has reasonable shape and design, and can move up and down to clamp or loosen the two clamping jaws 3.

Alternatively, the fixing sleeve 4 is preferably a cylindrical structure, and a rectangular cavity is formed in the fixing sleeve.

Example 5

In this embodiment, a locking pin set is mounted on the fixing sleeve 4, and a locking hole set is provided on the clamping jaw 3, and the locking pin set may be inserted into or withdrawn from the locking hole set to fix or release the fixing sleeve 4.

This scheme simple structure, reasonable in design can realize the fixed of fixed cover 4 through the cooperation of locking pin group and locking hole group, easy and simple to handle, labour saving and time saving.

Example 6

On the basis of embodiment 5, in this embodiment, the locking pin set includes at least one locking pin 6, and the locking pin 6 is movably mounted on the fixing sleeve 4; the locking hole group comprises at least one locking hole 7 arranged on any one of the clamping jaws 3, and the locking pin 6 can be inserted into or withdrawn from the locking hole 7.

During locking, the locking pin 6 is manually inserted into the locking hole 7 to fix the fixing sleeve 4; or, the locking pin 6 is manually pulled out from the locking hole 7 to loosen the fixing sleeve 4, so that the operation is simple and convenient, and the time and the labor are saved.

Based on the above scheme, be equipped with the round hole that runs through inside and outside on the fixed cover 4, this round hole can be with locking hole 7 intercommunication in the in-process that fixed cover 4 removed, can insert this round hole and locking hole 7 with locking pin 6 this moment in.

Preferably, in this embodiment, the locking pin set includes two locking pins, two circular holes are oppositely arranged on the fixing sleeve 4, and locking holes 7 are oppositely arranged on the two clamping jaws 3. The fixing sleeve 4 is manually moved to a set position so that the two circular holes are respectively communicated with the two locking holes 7, and then the two locking pins 6 are respectively inserted into the two locking holes 7 and the two circular holes to fix the two clamping jaws 3 and the fixing sleeve 4.

Example 7

On the basis of any one of the embodiments 2 to 6, in this embodiment, the self-locking member further includes a fixing plate 8 and a plurality of tension springs 9, the fixing plate 8 is fixedly sleeved on the pull rod 2, and is located above the fixing sleeve 4; the tension springs 9 are arranged between the fixing plate 8 and the fixing sleeve 4 and are uniformly distributed at intervals along the circumferential direction of the pull rod 2, and two ends of the tension springs 9 are respectively connected with the fixing plate 8 and the fixing sleeve 4.

This scheme simple structure, reasonable in design can realize the installation of fixed cover 4 through a plurality of extension springs 9, and does not influence the reciprocates of fixed cover 4, and can realize automatic return under the elasticity effect of a plurality of extension springs 4 when fixed cover loosens, easy and simple to handle, labour saving and time saving.

Preferably, in this embodiment, the fixing plate 8 is horizontally disposed, which is reasonable in arrangement, facilitates installation of the plurality of tension springs 9, and keeps the fixing sleeve 4 stable.

Example 8

On the basis of embodiment 7, in this embodiment, the fixing plate 8 has a ring-shaped plate structure.

The fixing plate 8 is reasonable in structural design, and not only is the fixing plate 8 conveniently installed on the pull rod 2, but also a plurality of tension springs 9 are conveniently installed.

Alternatively, the fixing plate 8 may be a rectangular plate, and a circular hole is formed at the center of the rectangular plate, and the pull rod 2 is inserted into the through hole and fixedly connected with the wall of the through hole.

Example 9

In this embodiment, on the basis of any one of embodiments 7 to 8, a plurality of pairs of through holes are formed at the upper ends of the fixing plate 8 and the fixing sleeve 4, and two ends of the plurality of tension springs 9 are respectively fastened into the plurality of pairs of through holes.

This scheme simple structure, reasonable in design, extension spring 9 easy dismounting, and do not influence the reciprocates of fixed cover 4.

Alternatively, both ends of each tension spring 9 are rotatably connected to the fixing plate 8 and the fixing sleeve 4, respectively.

Example 10

In this embodiment, the number of the tension springs 9 is two, and the two tension springs 9 are distributed relatively on the basis of any one of embodiments 7 to 9.

The number design of the tension springs 9 is reasonable, the tension springs 9 are convenient to assemble and disassemble, and the up-and-down movement of the fixed sleeve 4 is not affected.

Alternatively, other suitable numbers of tension springs 9 may be used, such as three or four.

The working principle of the utility model is as follows:

in the hoisting process, the hoisting ring 1 is connected with a crane, the lower ends of the two clamping jaws 3 clamp an article to be hoisted, the fixing sleeve 4 moves downwards to enable the two clamping jaws 3 to clamp the article, the locking holes 7 are communicated with corresponding round holes, and the locking pins 6 are manually inserted into the locking holes 7 to clamp the article, so that the article is prevented from falling (refer to fig. 5-8);

after the article is sent to the set position, the locking pin 6 is manually withdrawn to release the fixed sleeve 4, and then the fixed sleeve 4 is manually moved upward to release the two jaws 3, so that the two jaws 3 release the article, and the lifting is convenient (refer to fig. 1 to 4).

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. The utility model provides a take self-locking device's hoist which characterized in that: the lifting device comprises a lifting ring (1), a pull rod (2), a self-locking piece and two clamping jaws (3), wherein the pull rod (2) is vertically arranged, and the lifting ring (1) is vertically and fixedly arranged at the upper end of the pull rod (2); the two clamping jaws (3) are oppositely arranged below the pull rod (2), and the upper ends of the clamping jaws are respectively and rotatably connected with the lower end of the pull rod (2); the self-locking piece is arranged on the pull rod (2) and is used for locking or unlocking the two clamping jaws (3).

2. The spreader with self-locking device according to claim 1, wherein: the self-locking piece comprises a fixed sleeve (4), the fixed sleeve (4) is movably sleeved outside the pull rod (2), the fixed sleeve (4) can move downwards to be sleeved outside the upper ends of the two clamping jaws (3) so that the lower ends of the two clamping jaws (3) are close to each other, or move upwards to be loosened from the upper ends of the two clamping jaws (3) so that the lower ends of the two clamping jaws (3) are far away from each other.

3. The spreader with self-locking device according to claim 2, wherein: the parts of the two clamping jaws (3) close to the upper ends of the clamping jaws are fixedly connected through springs (5).

4. The spreader with self-locking device according to claim 2, wherein: the cross section of the fixing sleeve (4) is of a rectangular structure.

5. The spreader with self-locking device according to any one of claims 2-4, wherein: the locking pin group is arranged on the fixing sleeve (4), the locking hole group is arranged on the clamping jaw (3), and the locking pin group can be inserted into or withdrawn from the locking hole group so as to fix or loosen the fixing sleeve (4).

6. The spreader with self-locking device according to claim 5, wherein: the locking pin group comprises at least one locking pin (6), and the locking pin (6) is movably arranged on the fixed sleeve (4); the locking hole group comprises at least one locking hole (7) arranged on any clamping jaw (3), and the locking pin (6) can be inserted into or withdrawn from the locking hole (7).

7. The spreader with self-locking device according to any one of claims 2-4, wherein: the self-locking piece further comprises a fixing plate (8) and a plurality of tension springs (9), wherein the fixing plate (8) is fixedly sleeved on the pull rod (2) and is positioned above the fixing sleeve (4); the tension springs (9) are arranged between the fixed plate (8) and the fixed sleeve (4) and are uniformly distributed at intervals along the circumferential direction of the pull rod (2), and two ends of each tension spring are respectively connected with the fixed plate (8) and the fixed sleeve (4).

8. The spreader with self-locking device according to claim 7, wherein: the fixing plate (8) is of an annular plate-shaped structure.

9. The spreader with self-locking device according to claim 7, wherein: the upper ends of the fixing plate (8) and the fixing sleeve (4) are oppositely provided with a plurality of pairs of through holes, and the two ends of the tension springs (9) are respectively buckled into the plurality of pairs of through holes.

10. The spreader with self-locking device according to claim 7, wherein: the number of the tension springs (9) is two, and the two tension springs (9) are distributed relatively.