CN218708571U

CN218708571U - Hoisting clamp and hoisting device

Info

Publication number: CN218708571U
Application number: CN202222743956.3U
Authority: CN
Inventors: 雷衡兵
Original assignee: Zhonglian Hengtong Machinery Co Ltd
Current assignee: Zhonglian Hengtong Machinery Co Ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-24
Anticipated expiration: 2032-10-18

Abstract

The embodiment of the application provides a hoisting clamp and a hoisting device, wherein the hoisting clamp comprises a clamping assembly and a locking assembly; the clamping assembly comprises two clamping arms capable of rotating relatively and a limiting groove with a first opening, and the aperture of the limiting groove is larger than the width of the first opening; a clamping groove with a second opening is formed in the clamping arm and is communicated with the limiting groove; the locking assembly comprises a locking rod movably arranged on the clamping assembly and a locking piece in threaded connection with the locking rod, the locking rod enters a limiting groove and a clamping groove through a first opening and a second opening, the locking piece moves axially along the locking rod to enable at least part of the locking piece to enter the limiting groove, and the locking piece is matched with the limiting groove to lock the locking rod on the clamping assembly. The hoisting clamp provided by the embodiment of the application can better prevent the workpiece from falling.

Description

Hoisting clamp and hoisting device

Technical Field

The application relates to the technical field of engineering machinery, in particular to a hoisting clamp and a hoisting device.

Background

In the related art, a lifting appliance for lifting a cylindrical workpiece generally has two hoops, and in the lifting process, the cylindrical workpiece is clamped by the two hoops so as to prevent the cylindrical workpiece from falling.

However, in the hoisting process, when bumping, shaking and the like occur, the cylindrical workpiece is easy to push away the hoop and fall off.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiments of the present application are expected to provide a lifting clamp and a lifting device capable of better preventing a workpiece from falling.

In order to achieve the above object, an embodiment of the present application provides a stone tongs, including:

the clamping assembly comprises two clamping arms capable of rotating relatively and a limiting groove with a first opening, and the aperture of the limiting groove is larger than the width of the first opening; a clamping groove with a second opening is formed in the clamping arm and is communicated with the limiting groove;

the locking assembly, the locking assembly is including setting up with moving about locking lever on the centre gripping subassembly and with locking lever threaded connection's locking piece, the locking lever warp first opening with the second opening gets into the spacing groove with the draw-in groove, the locking piece is through following the axial displacement of locking lever makes the at least partial region entering of locking piece the spacing groove, the locking piece with the spacing groove cooperation will the locking lever locking is in on the centre gripping subassembly.

In one embodiment, the clamping arm comprises a rotating connecting end and a free end, and the free end is provided with the clamping groove.

In one embodiment, the arm lock includes centre gripping section, rotation linkage segment and free section, two the centre gripping space is injectd between the centre gripping section to the arm lock, rotate the linkage segment with the free section sets up respectively the relative both ends of centre gripping section, the free section to the outside of centre gripping space is turned over, the draw-in groove sets up on the free section.

In one embodiment, the clamping sections of the two clamping arms are bent in opposite directions to define a circular clamping space.

In one embodiment, the locking rod is rotatably disposed on the clamping assembly.

In one embodiment, the two clamping arms are a first clamping arm and a second clamping arm respectively, and the lock rod is rotatably connected with the first clamping arm.

In one embodiment, the limiting groove is disposed on the second clamping arm and is located on a side of the second clamping arm away from the first clamping arm.

In one embodiment, the clamping assembly includes a clamping plate having the limiting groove, and the clamping plate is connected with the second clamping arm.

In one embodiment, the locking member is a sleeve with an internal thread, the sleeve includes a holding portion and a limiting portion, and when the lock rod is in a locking state locked on the clamping assembly, the limiting portion is located in the limiting groove.

Another embodiment of the application provides a hoisting device, which comprises the hoisting clamp.

The embodiment of the application provides a lifting clamp and a lifting device, the lifting clamp comprises a clamping component and a locking component, the clamping component comprises two clamping arms capable of rotating relatively and a limiting groove with a first opening, the aperture of the limiting groove is larger than the width of the first opening, a clamping groove with a second opening is formed in each clamping arm, the clamping groove is communicated with the limiting groove, the locking component comprises a locking rod movably arranged on the clamping component and a locking piece in threaded connection with the locking rod, after the two clamping arms clamp a workpiece through relative rotation, an operator can move the locking rod to enable the locking rod to enter the limiting groove and the clamping groove through the first opening and the second opening, then the locking piece is rotated, the locking piece moves axially along the locking rod, after at least part of the locking piece enters the limiting groove, the locking rod is locked on the clamping component, the two clamping arms are locked by the locking rod and cannot be opened, and therefore the workpiece can be well prevented from being ejected out of the clamping arms.

Drawings

FIG. 1 is a schematic structural view of a ceiling clamp according to an embodiment of the present disclosure;

FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view of the stone tongs illustrated in FIG. 2 with the locking assembly in an unlocked position;

FIG. 4 is a cross-sectional view of the stone tongs shown in FIG. 2 with the locking assembly in a locked condition.

Description of the reference numerals

100, hoisting a clamp; 10 a clamping assembly; 11, clamping arms; 11a first clamping arm; 11b a second clamping arm; 111 a clamping section; 112 rotating the connecting section; 113 a free section; 12, limiting grooves; 12a first opening; 13 card slots; 13a second opening; 14 card boards; 20 a locking assembly; 21 a lock lever; 22 a latch; 221 a holding part; 222 a position-limiting part; 30 rubber pads; 200 parts.

Detailed Description

A stone tongs 100 is provided according to one embodiment of the present application, and as shown in fig. 1-4, the stone tongs 100 includes a clamp assembly 10 and a locking assembly 20. The clamping assembly 10 includes two clamping arms 11 capable of rotating relatively and a limiting groove 12 having a first opening 12a, and the aperture of the limiting groove 12 is larger than the width of the first opening 12 a. The clamping arm 11 is provided with a clamping groove 13 with a second opening 13a, and the clamping groove 13 is communicated with the limiting groove 12. The locking assembly 20 comprises a locking rod 21 movably arranged on the clamping assembly 10 and a locking piece 22 in threaded connection with the locking rod 21, the locking rod 21 enters the limiting groove 12 and the clamping groove 13 through the first opening 12a and the second opening 13a, the locking piece 22 enables at least part of the locking piece 22 to enter the limiting groove 12 through axial movement along the locking rod 21, and the locking piece 22 is matched with the limiting groove 12 to lock the locking rod 21 on the clamping assembly 10.

As shown in fig. 2, two clamping arms 11 are used for clamping a workpiece 200, and the workpiece 200 includes, but is not limited to, a cylindrical workpiece 200.

The locking rod 21 is movably arranged on the clamping component 10, that is, the locking rod 21 can move relative to the clamping component 10, and the locking rod 21 can enter the limiting groove 12 and the clamping groove 13 through the first opening 12a and the second opening 13a and can also be moved out of the limiting groove 12 and the clamping groove 13 through the first opening 12a and the second opening 13 a.

The locking piece 22 is matched with the limiting groove 12, and the locking of the lock rod 21 on the clamping assembly 10 means that the external dimension of at least part of the locking piece 22 is smaller than the external dimension of the limiting groove 12 and larger than the width dimension of the first opening 12a, and after at least part of the locking piece 22 enters the limiting groove 12, the area of the locking piece 22 in the limiting groove 12 cannot be separated from the first opening 12a, so that the lock rod 21 cannot move to the outside of the limiting groove 12 and the clamping groove 13 through the first opening 12a and the second opening 13 a.

Specifically, after the two clamping arms 11 clamp the workpiece 200 through relative rotation, an operator can move the lock rod 21 to enable the lock rod 21 to enter the limiting groove 12 and the clamping groove 13 through the first opening 12a and the second opening 13a, and then rotate the locking member 22 to enable the locking member 22 to move along the axial direction of the lock rod 21, after at least a partial region of the locking member 22 enters the limiting groove 12, the lock rod 21 is locked on the clamping assembly 10, and the two clamping arms 11 are locked by the lock rod 21 and cannot be opened, so that the workpiece 200 can be well prevented from ejecting the clamping arms 11 to fall off.

When the workpiece 200 needs to be taken out from between the two clamping arms 11, the locking piece 22 is only required to be rotated to enable the area, located in the limiting groove 12, of the locking piece 22 to move to the outside of the limiting groove 12, and then the locking rod 21 is moved to the outside of the limiting groove 12 and the clamping groove 13 through the first opening 12a and the second opening 13a, so that the two clamping arms 11 can be opened, the workpiece 200 can be taken out from between the clamping arms 11, and the operation is simple and convenient.

That is, the clamping assembly 10 of the embodiment of the present application can not only prevent the workpiece 200 from falling well, but also facilitate locking and unlocking the lock lever 21.

In one embodiment, as shown in fig. 2 to 4, the clamping arm 11 includes a rotation connecting end and a free end, and the clamping groove 13 may be disposed at the free end.

The rotation connecting end is a connecting end for realizing relative rotation of the clamping arm 11, the free end is an end of the clamping arm 11 opposite to the rotation connecting end, and the two clamping arms 11 can enable the free ends of the two clamping arms 11 to be close to or far away from each other through relative rotation.

When the clamping arms 11 are in the clamping state of clamping the workpiece 200, the distance between the free ends of the two clamping arms 11 is relatively short, so that the clamping groove 13 is provided with the free ends of the clamping arms 11, the length of the lock rod 21 can be shortened, and the lock rod 21 can lock the two clamping arms 11 conveniently.

In a specific embodiment, as shown in fig. 3 and 4, the clamping arms 11 include clamping sections 111, rotating connecting sections 112 and free sections 113, a clamping space is defined between the clamping sections 111 of the two clamping arms 11, the rotating connecting sections 112 and the free sections 113 are respectively disposed at two opposite ends of the clamping sections 111, the free sections 113 are folded towards the outside of the clamping space, and the clamping grooves 13 are disposed on the free sections 113.

Further, as shown in fig. 2 to 4, the clamping sections 111 of the two clamping arms 11 are bent in opposite directions, respectively, to define a circular clamping space, whereby clamping of the cylindrical workpiece 200 can be facilitated.

In one embodiment, as shown in fig. 2 to 4, the lock lever 21 is rotatably disposed on the clamping assembly 10, that is, the lock lever 21 can be rotated relative to the clamping assembly 10 to enter into or move out of the position-limiting groove 12 and the card slot 13 through the first opening 12a and the second opening 13 a.

As shown in fig. 2 to 4, for convenience of description, the two clip arms 11 may be referred to as a first clip arm 11a and a second clip arm 11b, respectively, and illustratively, the lock lever 21 may be rotatably connected to the first clip arm 11 a.

In one embodiment, as shown in fig. 2 to 4, the limiting groove 12 may be disposed on the second clamping arm 11b and located on a side of the second clamping arm 11b away from the first clamping arm 11a, that is, when the lock rod 21 enters the limiting groove 12 and the clamping groove 13 through the first opening 12a and the second opening 13a, the locking member 22 is also located on a side of the second clamping arm 11b away from the first clamping arm 11a, thereby facilitating the rotation of the locking member 22.

The clamping assembly 10 of fig. 2 to 4 is provided with a chucking plate 14 having a limiting groove 12, and the chucking plate 14 is connected with the second clamping arm 11b, whereby it is possible to facilitate the processing of the limiting groove 12.

In some embodiments, the limiting groove 12 may also be disposed on the second clamping arm 11 b.

In one embodiment, as shown in fig. 2 to 4, the locking member 22 is a sleeve with an internal thread, the sleeve includes a holding portion 221 and a position-limiting portion 222, and when the lock rod 21 is in a locked state locked on the clamping assembly 10, the position-limiting portion 222 is located in the position-limiting groove 12.

Specifically, the internal thread is used for being in threaded connection with the external thread on the lock rod 21, the grip portion 221 is a portion for being gripped by an operator for applying force, and the limiting portion 222 is used for being matched with the limiting groove 12 for limiting. That is, when it is required to lock the lock lever 21 to the grip assembly 10, the operator may rotate the sleeve by holding the grip portion 221 so that the stopper portion 222 can enter the stopper groove 12. When unlocking is required, the operator can also rotate the sleeve by gripping the grip portion 221 so that the stopper portion 222 can be removed from the stopper groove 12.

The provision of the grip portion 221 can eliminate the trouble of rotating the lock piece 22 using another tool, whereby the convenience of locking and unlocking the lock lever 21 can be further improved.

In one embodiment, as shown in fig. 2 to 4, the lifting clamp 100 further includes rubber pads 30, and the clamping surfaces of the two clamping arms 11 are respectively provided with the rubber pads 30.

The clamping surface is the one side of clamping arm 11 centre gripping work piece 200, and rubber pad 30 of setting on the clamping surface is used for contacting with work piece 200, and rubber pad 30 not only can provide the frictional force of pressing from both sides tight work piece 200, can also play the cushioning effect, and then can improve stone tongs 100's centre gripping effect.

Another embodiment of the present application further provides a hoisting device, which includes the hoisting clamp 100 described in any of the above embodiments.

The lifting clamp 100 may be connected to a rope such as a wire rope, or may be connected to other members, for example, a hook, or the lifting device may be provided with a hanger, and the hanger is connected to the lifting clamp 100 and then connected to a rope such as a wire rope or may be connected to other members. That is, the lifting clamp 100 can be used alone or in combination with a lifting tool.

It should be noted that, in this document, the term "comprises/comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing shows and describes the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are presented solely for purposes of illustrating the principles of the application and that various changes and modifications may be made without departing from the spirit and scope of the application and these changes and modifications are intended to be within the scope of the application as claimed. The scope of the claims herein is defined by the appended claims and equivalents thereof.

Claims

1. A stone tongs, its characterized in that includes:

the locking subassembly, the locking subassembly sets up including moving about locking lever on the centre gripping subassembly and with locking lever threaded connection's locking piece, the locking lever warp first opening with the second opening gets into the spacing groove with the draw-in groove, the locking piece is through following the axial displacement of locking lever makes the at least partial region entering of locking piece the spacing groove, the locking piece with the spacing groove cooperation will the locking lever locking is in on the centre gripping subassembly.

2. A stone tongs as set forth in claim 1 wherein the arms include a rotationally connected end and a free end, the free end being provided with the catch.

3. A hoist clamp as claimed in claim 2, wherein the clamp arm includes a clamping section, a rotation connecting section and a free section, a clamping space is defined between the clamping sections of the two clamp arms, the rotation connecting section and the free section are respectively disposed at two opposite ends of the clamping section, the free section is folded to the outside of the clamping space, and the clamping groove is disposed on the free section.

4. A hoist clamp according to claim 3, characterised in that the clamping sections of the two clamping arms are each curved in opposite directions to define a circular clamping space.

5. A stone tongs as claimed in claim 1 wherein the locking bar is rotatably disposed on the gripping assembly.

6. A hoisting clamp as claimed in claim 5, wherein the two clamping arms are a first clamping arm and a second clamping arm, respectively, and the lock rod is pivotally connected to the first clamping arm.

7. A lifting clamp according to claim 6, characterized in that the limiting groove is provided on the second clamping arm at a side of the second clamping arm facing away from the first clamping arm.

8. A ceiling-mountable fixture as set forth in claim 7, wherein said clamping assembly includes a clamping plate having said retention slot, said clamping plate being connected to said second clamping arm.

9. The stone tongs as claimed in any one of claims 1 to 3, wherein the locking member is a sleeve having an internal thread, the sleeve including a gripping portion and a limiting portion, the limiting portion being located in the limiting groove when the locking bar is in a locked state locked to the clamping assembly.

10. A lifting device comprising a lifting clamp according to any one of claims 1-9.