Wedge block dismounting tool

Abstract

A wedge dismounting tool is used for dismounting a wedge of a lifting rope from an elevator rope head sleeve and is characterized in that the wedge dismounting tool comprises a frame which is provided with a top wall, a bottom wall, a first side wall and a second side wall, the first side wall and the second side wall are opposite, so that an internal space is formed, and the internal space is configured to be capable of receiving the elevator rope head sleeve; the first side wall and the second side wall are spaced in the front-back direction. And a slider slidably mounted to the frame and configured to be movable in the frame in the vertical direction between a first position, in which the slider is configured to begin abutting against a wedge of the hoisting rope, and a second position, in which the slider is configured to push the wedge out of the elevator rope head sleeve, the front-back direction being perpendicular to the vertical direction.

Description

TECHNICAL FIELD

[0001] The present application relates to a wedge dismounting tool for dismounting a wedge of a hoisting rope from a rope head sleeve of an elevator. BACKGROUND

[0002] A rope head is used for rope end connection of a hoisting system of an elevator. Generally, the rope head comprises a rope head sleeve, a wedge is arranged around a hoisting rope, and the wedge is capable of being locked into the rope head sleeve under the driving of the hoisting rope and locking the hoisting rope.

[0003] When the hoisting rope is replaced, the wedge needs to be removed by overcoming the high friction force between the hoisting rope and the wedge, and currently the wedge is mainly knocked out by using a hammer or the like. However, when the hoisting rope is a coated steel wire rope, it is difficult to remove the wedge by using the conventional method. CONTENT OF THE INVENTION

[0004] The present application provides a wedge dismounting tool for dismounting a wedge of a hoisting rope from a rope head sleeve of an elevator, the wedge dismounting tool comprising:

[0005] a frame having a top wall, a bottom wall, opposite first and second side walls to form an inner space configured to be capable of receiving the rope head sleeve, the first and second side walls being spaced apart along a front-rear direction;

[0006] a slide member slidably mounted to the frame and configured to be capable of moving in a vertical direction within the frame between a first position and a second position, the front-rear direction being perpendicular to the vertical direction,

[0007] in the first position, the slide member is configured to start abutting the wedge of the hoisting rope, and in the second position, the slide member is configured to push the wedge out of the rope head sleeve.

[0008] Advantageously, the first side wall is provided with a first groove extending in the vertical direction, and the second side wall is provided with a second groove extending in the vertical direction.

[0009] Advantageously, the first groove and the second groove are both open downward.

[0010] Advantageously, the slide member has:

[0011] a body;

[0012] a push portion extending upward from the body and located in the inner space of the frame and configured to abut the wedge.

[0013] Advantageously, the slide member has:

[0014] a pressure receiving portion extending downward from the body and positioned in the interior space of the frame, the pressure receiving portion having an arcuate portion and a flat pressure receiving wall extending in the left-right direction, the arcuate portion being positioned between the body and the flat pressure receiving wall, the left-right direction being perpendicular to the vertical direction and the front-rear direction.

[0015] Advantageously, the slide has:

[0016] a first guide portion and a second guide portion each extending upward from the body and positioned on both sides of the push portion and spaced apart from the push portion by a first gap and a second gap, respectively, the first guide portion and the second guide portion being positioned outside the frame such that the first gap matches the first groove and the second gap matches the second groove, the first guide portion further extending in the left-right direction beyond the first groove, and the second guide portion further extending in the left-right direction beyond the second groove; and / or

[0017] a third guide portion and a fourth guide portion each extending downward from the body and positioned on both sides of the pressure receiving portion and spaced apart from the pressure receiving portion by a third gap and a fourth gap, respectively, the third guide portion and the fourth guide portion being positioned outside the frame such that the third gap matches the first groove and the fourth gap matches the second groove, the third guide portion further extending in the left-right direction beyond the first groove, and the fourth guide portion further extending in the left-right direction beyond the second groove.

[0018] Advantageously, the push portion has a tapered portion and a straight portion, the tapered portion being positioned between the body and the straight portion and tapering from the body toward the straight portion, the straight portion having a tapered free end configured to abut the wedge.

[0019] Advantageously, further comprising a power screw passing through the bottom wall and configured to abut the flat pressure receiving wall to push the slide to move.

[0020] Advantageously, the frame includes a first plate having the first side wall and a first top wall, and a second plate having the second side wall and a second top wall, the first top wall and the second top wall being overlapped with each other and fixed together.

[0021] Advantageously, the top wall has an opening open to the left or to the right. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and other features and advantages of exemplary embodiments of the present application will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the application. This description and the drawings are not to be taken in a limiting sense, but are made merely for the purposes of exemplification and are not intended as a definition of the limits of the application, wherein:

[0023] Figure 1 A perspective view of a wedge removal tool according to the present application is shown.

[0024] Figure 2 A front view of a wedge removal tool according to the present application is shown.

[0025] Figure 3 A side view of a wedge removal tool according to the present application is shown.

[0026] Figure 4 A perspective view of a slide of a wedge removal tool according to the present application is shown. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the technical solutions of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below in combination with the drawings of the embodiments of the present disclosure. The same reference signs in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of protection of the present disclosure.

[0028] Compared with the embodiments shown in the drawings, the feasible implementation solutions within the protection scope of the present disclosure can have fewer components, have other components not shown in the drawings, have different components, have differently arranged components or differently connected components, etc. In addition, two or more components in the drawings can be implemented in a single component, or a single component shown in the drawings can be implemented as multiple separate components.

[0029] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the common meaning in the field of the present disclosure to which they pertain. The terms “first”, “second” and similar terms used in the specification and claims of the present disclosure do not denote any order, quantity or importance, but are used to distinguish different components. When the number of components is not specified, the number of components can be one or more; similarly, the terms “one”, “the”, “said” and the like do not necessarily mean a quantity limitation. The terms “comprise”, “contain” and similar terms mean that the components or objects before the terms encompass the components or objects listed after the terms and their equivalents, without excluding other components or objects. The terms “upper”, “lower”, “left”, “right” and the like only denote the relative positional relationship of the device in use or the positional relationship shown in the drawings, and when the absolute position of the described object changes, the relative positional relationship can also change accordingly.

[0030] For the convenience of the following description, the present application defines Figure 1 the coordinate system X-axis corresponds to the left-right direction, the Y-axis corresponds to the front-rear direction, and the Z-axis corresponds to the vertical direction, so that the left-right direction, the front-rear direction and the vertical direction are perpendicular to each other.

[0031] Figure 1A perspective view of a wedge removal tool according to the present application is shown. The wedge removal tool is used to dismount a wedge of a hoisting rope from an elevator rope thimble. The wedge dismounting tool comprises a frame having a top wall 1, a bottom wall 2, opposite first and second side walls 3, 4 to form an inner space configured to receive the elevator rope thimble, the first and second side walls being spaced apart in a front-rear direction.

[0032] In examples of the present application, the frame has a first plate having the first side wall and the first top wall, and a second plate having the second side wall and a second top wall, the first and second top walls being overlapped with each other and fixed together to form the top wall. The first and second plates can be fixed together by a fixing member 5. However, the frame can also be integral.

[0033] The top wall has an opening 11 which can be open to the left or to the right, configured for the elevator rope thimble to pass through to enter the inner space.

[0034] The wedge dismounting tool further comprises a slide 6 slidably mounted to the frame, configured to be movable in a vertical direction within the frame between a first position and a second position. In the first position, the slide is configured to initially abut against the wedge of the hoisting rope, and then, as the slide moves towards the second position, the slide gradually pushes against the wedge to gradually disengage the wedge from the thimble, and finally in the second position, the slide pushes the wedge out of the elevator rope thimble.

[0035] As shown in Figure 1 , a first groove (not shown) extending in a vertical direction is provided on the first side wall, and a second groove 41 extending in a vertical direction is provided on the second side wall 41. The first and second grooves are preferably both open downward to facilitate mounting of the slide to the frame.

[0036] As shown in Figure 2 , Figure 3 and Figure 4 , the slide 6 has a body 61, a pushing portion 62 extending upwardly from the body, located in the inner space of the frame, and configured to abut against the wedge. The pushing portion 62 has a tapered portion 621 and a straight portion 622, the tapered portion being located between the body and the straight portion, gradually narrowing from the body towards the straight portion, the straight portion having a tapered free end 623 configured to abut against the wedge.

[0037] The slide 6 further has a pressure receiving portion 63 extending downwardly from the body, located in the inner space of the frame. As Figure 4As shown, the pressure receiving portion 63 has an arc-shaped portion 631 and a flat pressure receiving wall 632 extending in the left-right direction, with the arc-shaped portion being located between the body and the flat pressure receiving wall 632. The flat pressure receiving wall 632 is configured to be able to receive an external force for moving the sliding member from the first position to the second position. In the present example, a power screw 7 passes through the bottom wall 20 and is configured to be able to abut against the flat pressure receiving wall to push the sliding member to move.

[0038] The sliding member also has a first guide portion 64 and a second guide portion 65 extending upward from the body and located on both sides of the pushing portion and spaced apart from the pushing portion by a first gap 641 and a second gap 651, respectively. In the case where the sliding member is mounted to the frame, the first guide portion 64 and the second guide portion 65 are located outside the frame, such that the first gap matches the first groove and the second gap matches the second groove. In order to prevent the sliding member from moving in the front-rear direction, the first guide portion is also configured to extend beyond the first groove in the left-right direction, and the second guide portion is also configured to extend beyond the second groove in the left-right direction. In the present example, the first guide portion and the second guide portion each have an arc-shaped portion extending beyond the corresponding groove to prevent the sliding member from moving in the front-rear direction. However, this is merely exemplary, and one skilled in the art can also choose other forms to prevent the sliding member from moving in the front-rear direction.

[0039] Alternatively or additionally, the sliding member has a third guide portion 66 and a fourth guide portion 67 extending downward from the body and located on both sides of the pressure receiving portion 63 and spaced apart from the pressure receiving portion by a third gap and a fourth gap, respectively. In the case where the sliding member is mounted to the frame, the third guide portion and the fourth guide portion are located outside the frame, such that the third gap matches the first groove and the fourth gap matches the second groove. Likewise, in order to prevent the sliding member from moving in the front-rear direction, the third guide portion is also configured to extend beyond the first groove in the left-right direction, and the fourth guide portion is also configured to extend beyond the second groove in the left-right direction.

[0040] By means of the wedge removal tool of the present application, the wedge can be reliably removed, especially when the hoisting rope is a coated hoisting rope.

[0041] Although the present application has been described in the specification and illustrated in the drawings with reference to various embodiments, it is understood that the embodiments are merely exemplary and that certain technical features in the embodiments can not be essential for solving the specific technical problems, so that these technical features can be omitted or left out without affecting the solution of the technical problems or the formation of the technical scheme; moreover, the features, elements and / or functions of one embodiment can be properly combined, integrated or matched with those of another one or more embodiments, unless the combination, integration or matching is obviously unfeasible.

Claims

1. A wedge dismounting tool for dismounting a wedge of a hoisting rope from a rope head sleeve of an elevator, characterized in that, The wedge dismounting tool comprises: a frame having a top wall, a bottom wall, opposite first and second side walls to form an inner space configured to receive a elevator rope thimble, the first and second side walls being spaced apart in a front-rear direction, a slider slidably mounted to the frame and configured to move in a vertical direction within the frame between a first position and a second position, the front-rear direction being perpendicular to the vertical direction, in the first position, the slider is configured to start abutting the wedge of the hoisting rope, and in the second position, the slider is configured to push the wedge out of the elevator rope thimble.

2. The wedge extraction tool of claim 1, wherein, The first side wall is provided with a first groove extending in the vertical direction, and the second side wall is provided with a second groove extending in the vertical direction.

3. The wedge extraction tool of claim 2, wherein, The first groove and the second groove are both open downward.

4. The wedge extraction tool of claim 2, wherein, The slider has: a body; a pushing portion extending upward from the body and located in the inner space of the frame and configured to abut the wedge.

5. The wedge extraction tool of claim 2, wherein, The slider has: a pressed portion extending downward from the body and located in the inner space of the frame, the pressed portion having an arc-shaped portion and a flat pressed wall extending in a left-right direction, the arc-shaped portion being located between the body and the flat pressed wall, the left-right direction being perpendicular to the vertical direction and the front-rear direction.

6. The wedge extraction tool of claim 4, wherein, The slider has: a first guide portion and a second guide portion respectively extending upward from the body and located on both sides of the pushing portion and spaced apart from the pushing portion by a first gap and a second gap, the first guide portion and the second guide portion being located outside the frame such that the first gap matches the first groove and the second gap matches the second groove, the first guide portion further extending beyond the first groove in the left-right direction, and the second guide portion further extending beyond the second groove in the left-right direction; and / or a third guide portion and a fourth guide portion respectively extending downward from the body and located on both sides of the pressed portion and spaced apart from the pressed portion by a third gap and a fourth gap, the third guide portion and the fourth guide portion being located outside the frame such that the third gap matches the first groove and the fourth gap matches the second groove, the third guide portion further extending beyond the first groove in the left-right direction, and the fourth guide portion further extending beyond the second groove in the left-right direction.

7. The wedge extraction tool of claim 4, wherein, The pushing portion has a tapered portion and a straight portion, the tapered portion being located between the body and the straight portion and gradually narrowing from the body toward the straight portion, and the straight portion having a tapered free end configured to abut the wedge.

8. The wedge extraction tool of claim 5, wherein, A power screw is further included, the power screw passing through the bottom wall and configured to abut the flat pressed wall to push the slider to move.

9. The wedge extraction tool of claim 1, wherein, The frame includes a first plate having the first side wall and a first top wall, and a second plate having the second side wall and a second top wall, the first top wall and the second top wall being overlapped with each other and fixed together.

10. The wedge extraction tool of claim 1, wherein, The top wall has an opening open to the left or to the right.

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