A speed limiter wire rope clamping device suitable for speed limiter action speed verification

Abstract

The present invention discloses a speed limiter wire rope clamping device suitable for speed limiter action speed verification, comprising a pressure block and a support, the support comprising a clamping plate and a connecting plate, the clamping plate having a first clamping surface; the first end of the pressure block is rotatably connected to the connecting plate of the support, the second end of the pressure block is freely arranged and located above the first end of the pressure block, and the pressure block is provided with a second clamping surface corresponding to the first clamping surface. The present invention provides an enlarged contact area when the wire rope is clamped by arranging the first clamping surface and the second clamping surface, thereby effectively avoiding damage to the wire rope, and at the same time, the wire rope clamping can be completed by simple operations such as installing the clamping device and moving the pressure block, which is convenient to operate and can greatly improve the efficiency of elevator speed limiter action speed verification, and the wire rope will not slip off the clamping device, which can effectively ensure the personal safety of the verification personnel; at the same time, the clamping device of the present invention has a simple structure, a small volume, and is easy to carry.

Description

Technical Field

[0001] The invention relates to the technical field of elevator inspection devices, and in particular to a speed governor wire rope clamping device suitable for speed governor action speed verification. Background Art

[0002] With the rapid growth of social economy, the application scope of elevators is becoming more and more extensive. Ensuring the effective implementation of elevator maintenance and inspection is of vital importance to safeguarding the safety of people's lives and property and promoting the healthy and stable development of social economy. This is also the core responsibility of elevator maintenance and inspection personnel.

[0003] As a key safety protection device for the safe operation of elevators, the speed limiter can quickly start and link the safety clamp to stop the car safely on the guide rail in emergency situations such as elevator overspeed or brake failure, causing the elevator to fall out of control or hit the top, thereby effectively protecting the lives of passengers. To ensure that the speed limiter can continue to operate safely and accurately, the maintenance unit must regularly calibrate the speed of the speed limiter.

[0004] When checking the speed limiter, the wire rope of the speed limiter needs to be separated from the speed limiter rope pulley, and then reinstalled on the rope pulley after the check is completed. In traditional operations, most people use pliers to clamp the wire rope to achieve separation, but this method has obvious disadvantages: the contact area between the jaws of the pliers and the wire rope is small. If the clamping force is too large, it is easy to cause damage to the wire rope; if the clamping force is insufficient, it may cause the wire rope to slip, which will cause harm to the operator. Another method is for the operator to climb onto the top of the car and use a clamp to pull the speed limiter wire rope, but this method is cumbersome and physically demanding.

[0005] Therefore, in order to ensure the personal safety of personnel performing on-site verification of the elevator speed limiter action speed and improve the verification efficiency, a wire rope clamping device specifically suitable for speed limiter action speed verification is urgently needed. Summary of the invention

[0007] The object of the present invention is to overcome the shortcomings of the prior art and provide a speed limiter wire rope clamping device suitable for speed limiter action speed verification. By setting the first clamping surface and the second clamping surface, the wire rope has an increased contact area when clamped, which can effectively avoid damage to the wire rope.

[0008] The objective of the present invention is achieved through the following technical solutions: A speed governor wire rope clamping device suitable for speed governor action speed verification, comprising a pressure block and a support, wherein the support comprises a clamping plate and a connecting plate, and the clamping plate has a first clamping surface; The first end of the pressure block is rotatably connected to the connecting plate of the support, the second end of the pressure block is freely set and located above the first end of the pressure block, the pressure block is provided with a second clamping surface corresponding to the first clamping surface, an arc-shaped clamping gap is formed between the second clamping surface and the first clamping surface, the wire rope is set in the clamping gap, when the wire rope runs from the second end of the pressure block toward the first end, the second clamping surface moves in the direction close to the first clamping surface to clamp the wire rope.

[0009] Furthermore, the pressing block is a bow-shaped structure, and the second clamping surface is an arc-shaped structure.

[0010] Furthermore, the second clamping surface is provided with a plurality of locking teeth inclined upward.

[0011] Furthermore, the first end of the pressing block is rotatably connected to the connecting plate via a pin.

[0012] Furthermore, a gasket is provided on the pin shaft, and the gasket is arranged between the pressing block and the connecting plate.

[0013] Furthermore, the support is also provided with a support plate, the support plate is connected to the connecting plate, the clamping plate, the connecting plate and the support plate form a U-shaped structure, and a spring is provided between the pressure block and the support plate.

[0014] Furthermore, a strip groove is provided on the support plate, the second end of the pressure block is connected to the first end of the pull rod, the second end of the pull rod extends from the strip groove to the outside of the support plate, and the spring is coaxially sleeved outside the pull rod.

[0015] Furthermore, the spring is a conical spring, the large-sized end of the spring abuts against the inner side of the support plate, and the small-sized end of the spring abuts against a side of the pressing block away from the second clamping surface.

[0016] Furthermore, a limit plate and a handle are sequentially provided at the second end of the pull rod along the axial direction, and the limit plate is larger in size than the strip groove.

[0017] Furthermore, the pull rod is threadedly connected to the pressing block.

[0018] The beneficial effects of the present invention are: 1) The present invention provides a first clamping surface and a second clamping surface so that the steel wire rope has an increased contact area when being clamped, thereby effectively avoiding damage to the steel wire rope.

[0019] 2) At the same time, the wire rope clamping can be completed by simple operations such as installing the clamping device and turning the pressure block. The convenient operation can greatly improve the efficiency of the elevator speed limiter action speed verification, and the wire rope will not slip off the clamping device, which can effectively ensure the personal safety of the verification personnel.

[0020] 3) At the same time, the clamping device of the present invention has a simple structure, a small size, and is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of a speed governor wire rope clamping device before clamping a wire rope, which is suitable for speed governor action speed verification in an embodiment of the present invention; Figure 2 It is a three-dimensional diagram of the speed governor wire rope clamping device which is suitable for speed governor action speed verification when clamping the wire rope; Figure 3 is a front view of the pressing block; Figure 4 is a three-dimensional diagram of the pull rod; Figure 5 It is a diagram of the use state of the clamping device; Figure 6 It is a schematic diagram of the state of the clamping device when the speed governor wire rope is separated from the speed governor wheel groove; In the figure, 1, pressure block; 2, support; 3, clamping plate; 4, connecting plate; 5, first clamping surface; 6, second clamping surface; 7, wire rope; 8, latching tooth; 9, pin shaft; 10, gasket; 11, support plate; 12, spring; 13, strip groove; 14, pull rod; 15, limit plate; 16, handle. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 6 , the present invention provides a technical solution: Example: like Figure 1-Figure 6 As shown, a speed governor wire rope clamping device suitable for speed governor action speed verification comprises a pressure block 1 and a support 2, wherein the support 2 comprises a clamping plate 3 and a connecting plate 4, wherein the clamping plate 3 has a first clamping surface 5 (wherein the inner side surface of the clamping plate 3 is the first clamping surface 5); The first end of the pressure block 1 is rotatably connected to the connecting plate 4 of the support 2 through a pin shaft 9, and the second end of the pressure block 1 is freely set and located above the first end of the pressure block 1. The pressure block 1 is provided with a second clamping surface 6 corresponding to the first clamping surface 5 (the correspondence here refers to the first clamping surface 5 and the second clamping surface 6 being arranged relative to each other), and the second clamping surface 6 is provided with a plurality of upwardly inclined teeth 8, and an arc-shaped clamping gap is formed between the second clamping surface 6 and the first clamping surface 5. The wire rope 7 is arranged in the clamping gap, and when the wire rope 7 runs from the second end of the pressure block 1 toward the first end, the second clamping surface 6 moves toward the direction close to the first clamping surface 5 to clamp the wire rope 7.

[0024] The pressing block 1 is an arched structure, and the second clamping surface 6 is an arc-shaped structure.

[0025] Working principle: Stop the elevator and switch it to the maintenance state, install the clamping device to the speed limiter wire rope 7 on the side of the speed limiter away from the car. Move the second end of the pressure block 1 to rotate it around the first end, and the clamping gap is increased to allow the wire rope 7 to be inserted.

[0026] After the steel wire rope 7 is put into the clamping gap, the pressure block 1 is moved toward the first clamping surface 5 until the second clamping surface 6 of the pressure block 1 is pressed against the steel wire rope. When the elevator is started for maintenance and jog upward, the speed limiter wheel groove also rotates, driving the speed limiter steel wire rope 7 to rotate. At this time, the speed limiter steel wire rope 7 on the side away from the car generates a downward force. Due to the arched structure of the pressure block 1 (i.e., the clamping gap is wide at both ends and narrow in the middle) and the upwardly inclined teeth 8 on the second clamping surface 6, the steel wire rope 7 is clamped tighter and tighter between the clamping surface of the pressure block 1 and the inner wall of the support 2 and cannot run. When the speed limiter steel wire rope 7 on the car side continues to move upward driven by the speed limiter wheel groove, the speed limiter steel wire rope 7 is separated from the speed limiter wheel groove.

[0027] The present invention provides a first clamping surface 5 and a second clamping surface 6 so that the wire rope 7 has an increased contact area when being clamped, thereby effectively avoiding damage to the wire rope 7. At the same time, the wire rope 7 can be clamped by simple operations such as installing the clamping device and turning the pressure block 1. The convenient operation can greatly improve the efficiency of the elevator speed limiter action speed verification, and the wire rope 7 will not slip off the clamping device, which can effectively ensure the personal safety of the verification personnel. At the same time, the clamping device of the present invention has a simple structure, a small size, and is easy to carry.

[0028] Furthermore, if Figure 2 As shown, a gasket 10 is provided on the pin shaft 9, and the gasket 10 is arranged between the pressing block 1 and the connecting plate 4. The arrangement can prevent the pressing block 1 from contacting with the connecting plate 4 and causing wear.

[0029] Furthermore, if Figure 1 and Figure 2As shown, the support 2 is further provided with a support plate 11, and the support plate 11 is connected to the connecting plate 4. The clamping plate 3, the connecting plate 4 and the support plate 11 form a U-shaped structure, and a spring 12 is provided between the pressing block 1 and the support plate 11.

[0030] The support plate 11 is provided with a strip groove 13 (the strip groove 13 is provided to prevent the support plate 11 from interfering with the displacement of the pull rod 14), the second end of the pressure block 1 is connected to the first end of the pull rod 14, the second end of the pull rod 14 extends from the strip groove 13 to the outside of the support plate 11, and the spring 12 is coaxially sleeved outside the pull rod 14.

[0031] The spring 12 is a conical spring 12 , the large end of the spring 12 abuts against the inner side of the support plate 11 , and the small end of the spring 12 abuts against a side of the pressing block 1 away from the second clamping surface 6 .

[0032] A second end of the pull rod 14 is provided with a limit plate 15 and a handle 16 in sequence along the axial direction. The limit plate 15 is larger than the strip groove 13 .

[0033] The pull rod 14 is threadedly connected to the pressing block 1 .

[0034] When the wire rope 7 is clamped, the pull rod 14 is pulled, and the pull rod 14 is displaced in the strip groove 13, and the pull rod 14 drives the second end of the pressure block 1 to move, and in this process the pressure block 1 squeezes the spring 12. When the wire rope 7 enters the clamping gap, the pull rod 14 is released, and the pull rod 14 and the pressure block 1 move toward the first clamping surface 5 under the action of the spring 12 until the second clamping surface 6 of the pressure block 1 is pressed against the wire rope 7.

[0035] In addition to being used for resetting the pressing block 1 and the pull rod 14 as mentioned above, the spring 12 cannot completely restore its original length due to the presence of the steel wire, so the pressing block 1 is always pressed against the steel wire rope 7 under the pressure of the spring 12.

[0036] At the same time, the clamping plate 3, the connecting plate 4, and the supporting plate 11 form a U-shaped support 2, and the opposite side of the connecting plate 4 is an opening for the steel wire rope 7 to enter.

[0037] When the clamping device is in action, the support is supported by the bracket and base of the speed limiter.

[0038] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A speed governor wire rope clamping device suitable for speed governor action speed verification, characterized in that: It includes a pressing block and a support, wherein the support includes a clamping plate and a connecting plate, and the clamping plate has a first clamping surface; The first end of the pressing block is rotatably connected to the connecting plate of the support, the second end of the pressing block is freely arranged and located above the first end of the pressing block, the pressing block is provided with a second clamping surface corresponding to the first clamping surface, an arc-shaped clamping gap is formed between the second clamping surface and the first clamping surface, the steel wire rope is arranged in the clamping gap, and when the steel wire rope runs from the second end of the pressing block toward the first end, the second clamping surface moves toward the direction close to the first clamping surface to clamp the steel wire rope; The second clamping surface is provided with a plurality of locking teeth with an upward inclination angle.

2. The speed governor wire rope clamping device suitable for speed governor action speed verification according to claim 1 is characterized in that: The pressing block is an arched structure, and the second clamping surface is an arc-shaped structure.

3. The speed governor wire rope clamping device suitable for speed governor action speed verification according to claim 2 is characterized in that: The first end of the pressing block is rotatably connected to the connecting plate via a pin shaft.

4. The speed governor wire rope clamping device suitable for speed governor action speed verification according to claim 3 is characterized in that: A gasket is arranged on the pin shaft, and the gasket is arranged between the pressing block and the connecting plate.

5. The speed governor wire rope clamping device suitable for speed governor action speed verification according to any one of claims 2 to 4, characterized in that: The support is further provided with a support plate, and the support plate is connected to the connecting plate. The clamping plate, the connecting plate and the support plate form a U-shaped structure, and a spring is provided between the pressing block and the support plate.

6. The speed governor wire rope clamping device suitable for speed governor action speed verification according to claim 5, characterized in that: The support plate is provided with a strip groove, the second end of the pressure block is connected to the first end of the pull rod, the second end of the pull rod extends from the strip groove to the outside of the support plate, and the spring is coaxially sleeved outside the pull rod.

7. The speed governor wire rope clamping device suitable for speed governor action speed verification according to claim 6, characterized in that: The spring is a conical spring, the large-size end of the spring abuts against the inner side of the support plate, and the small-size end of the spring abuts against a side of the pressing block away from the second clamping surface.

8. The speed governor wire rope clamping device suitable for speed governor action speed verification according to claim 7, characterized in that: The second end of the pull rod is provided with a limit plate and a handle in sequence along the axial direction, and the limit plate is larger than the strip groove.

9. The speed governor wire rope clamping device suitable for speed governor action speed verification according to claim 6, characterized in that: The pull rod is threadedly connected to the pressing block.

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