An inorganic room speed limiter mechanical reset assist device and its operation method

Abstract

The present invention discloses a machine-roomless speed governor mechanical reset assisting device and an operation method. A bottom plate is fixed to the bottom of the side plate, and a floating plate is located above the bottom plate; a first slide rail is fixed to the floating plate, a second reset spring is arranged between the floating plate and the bottom plate, a movable part is arranged on the first slide rail, the upper end of a first reset spring is fixed to the movable part, the lower end of the first reset spring is fixed to the floating plate, one end of an operation cable is located outside the hoistway, and the other end of the operation cable sequentially passes through the bottom plate and the floating plate and is connected to the movable part; from top to bottom, the distance between the first slide rails in the two reset components gradually decreases, and the speed governor steel wire rope is located between the movable parts in the two reset components. This device and its operation method can operate the speed governor outside the hoistway, solve the problem of abnormal mechanical reset of the machine-roomless speed governor, and have the characteristics of small workload and high safety.

Description

Technical Field

[0001] The present invention relates to an auxiliary device and an operation method thereof, and more particularly to a machine-roomless speed governor mechanical reset auxiliary device and an operation method thereof. Background Art

[0002] The elevator speed governor safety gear test is an item that must be inspected during the elevator inspection process, and it is an important way to ensure the reliable operation of the elevator safety gear. In the prior art, when the machine-roomless elevator speed governor safety gear linkage test is reset, when the car is run upward for maintenance, the safety gear can be reset, but the speed governor cannot be reset normally. For a machine room, the speed governor can be directly located in the machine room, and the speed governor can be forcibly operated manually under safe circumstances. However, for a machine-roomless elevator, the speed governor is located in the hoistway and cannot be directly operated. In view of this phenomenon in the reset of the machine-roomless elevator speed governor safety gear linkage test.

[0003] If the speed governor is not reset normally, continued operation of the elevator will cause damage to the equipment. There has been a safety accident on site where after the speed governor safety gear linkage test was successful and reset, the safety gear could be reset normally, but the speed governor was not reset normally. The car ran upward, the compression spring of the speed governor did not bounce open, the wire rope did not rotate, the wire rope on one side of the car was bent, the bent wire rope hit the magnetic isolation plate on the guide rail, pulling off the magnetic isolation plate, and the leveling switch was also damaged. Since the machine-roomless speed governor is in the hoistway and the operating space is insufficient, personnel cannot enter the hoistway to reach the speed governor maintenance position, and the elevator can only run upward, and the downward safety gear will act, causing a great deal of workload for maintenance personnel. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a machine-roomless speed governor mechanical reset auxiliary device and an operation method thereof. The device and the operation method can operate the speed governor outside the hoistway, solve the problem of abnormal mechanical reset of the machine-roomless speed governor, and have the characteristics of small workload and high safety.

[0005] To achieve the above object, the machine-roomless speed governor mechanical reset auxiliary device of the present invention includes a bottom plate, a floating plate and two reset components; the reset component includes a first slide rail, a first reset spring, a second slide rail, a second reset spring, an operation wire rope and a movable member.

[0006] The bottom plate is fixed to the bottom of the side plate, and the floating plate is located above the bottom plate; the first slide rail is fixed to the floating plate, the second reset spring is arranged between the floating plate and the bottom plate, the movable member is arranged on the first slide rail, the upper end of the first reset spring is fixed to the movable member, the lower end of the first reset spring is fixed to the floating plate, one end of the operation wire rope is located outside the hoistway, and the other end of the operation wire rope sequentially passes through the bottom plate and the floating plate and is connected to the movable member.

[0007] From top to bottom, the distance between the first slide rails in the two reset components gradually decreases, and the speed limiter wire rope is located between the movable parts in the two reset components.

[0008] The lower end of the second slide rail is fixed on the bottom plate, and the upper end of the second slide rail passes through the floating plate from bottom to top, and the second return spring is sleeved on the second slide rail.

[0009] The number of the second return springs in one reset component is two, the number of the second slide rails in one reset component is two, and one second return spring corresponds to one second slide rail.

[0010] The second slide rails are distributed in parallel.

[0011] The floating plate is parallel to the bottom plate.

[0012] The first slide rails in the two reset components are both inclined.

[0013] It further includes a protective cover. Among them, the lower end of the protective cover is fixed on the bottom plate, and the floating plate, the first slide rail, the first return spring, the second slide rail, the second return spring and the movable part are all arranged in the protective cover.

[0014] First through holes for the operation pull wire to pass through are arranged on both the bottom plate and the floating plate.

[0015] Second through holes for the speed limiter wire rope to pass through are arranged on the bottom plate, the floating plate and the protective cover.

[0016] The operation method of the machine roomless speed limiter mechanical reset auxiliary device of the present invention includes the following steps:

[0017] When the first return spring does not act, the movable part stays at the upper part of the first slide rail, the second slide rail is fixed on the bottom plate, the floating plate and the second return spring are guided by the second slide rail, and the floating plate and the second return spring move on the second slide rail; when the safety clamp is normally reset after the speed limiter safety clamp linkage test, and the speed limiter is not reset normally, the staff pulls the operation pull wire outside the hoistway, drives the movable part to move downward through the operation pull wire, then clamps the speed limiter wire rope through the movable parts in the two reset components, and at the same time drives the first return spring 3 to compress, then continues to pull the operation pull wire, the floating plate moves downward along with the second slide rail together, compresses the second return spring, the speed limiter wire rope moves downward by a certain distance, and then releases the operation pull wire.

[0018] The present invention has the following beneficial effects:

[0019] When the inorganic machine room speed limiter mechanical reset auxiliary device and its operation method of the present invention are specifically operated, after the safety gear is normally reset during the speed limiter and safety gear linkage test, but the speed limiter is not reset normally, the staff pulls the operation wire outside the hoistway. The operation wire drives the movable part to move downward, and finally the movable parts in the two reset components clamp the speed limiter wire rope, and at the same time drive the first reset spring to compress. Then continue to pull the operation wire, the floating plate moves downward, compresses the second reset spring, and the speed limiter wire rope moves downward by a certain distance. Then release the operation wire, and the elevator moves upward emergently by electricity, and observe whether the speed limiter mechanical part is reset normally. When it is not reset normally, the above operation can be repeated to solve the problem that the inorganic machine room speed limiter mechanical reset is abnormal. It should be noted that when the present invention is used, the staff only needs to pull the operation wire outside the hoistway, without entering the hoistway, so the safety is relatively high. At the same time, the structure is simple, the installation is relatively convenient, and it does not involve electrical structure, so the reliability is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the present invention.

[0021] Figure 2 It is a front view of the present invention.

[0022] Among them, 1 is the first slide rail, 2 is the movable part, 3 is the first reset spring, 4 is the floating plate, 5 is the second slide rail, 6 is the second reset spring, 7 is the protective cover, 8 is the bottom plate, and 9 is the operation wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessarily confusing the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0024] The schematic structural diagrams according to the disclosed embodiments of the present invention are shown in the drawings. These figures are not drawn to scale, and for the purpose of clear expression, some details are enlarged and some details may be omitted. The shapes of various regions and layers shown in the figures and their relative sizes and positional relationships are only exemplary. In practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art can design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0025] Reference Figure 1 and Figure 2 The machine roomless speed limiter mechanical reset assist device according to the present invention includes a protective cover 7, a floating plate 4 and two reset components; the reset components include a first slide rail 1, a second slide rail 5, a first return spring 3, a second return spring 6, an operation cable 9 and a movable member 2;

[0026] The protective cover 7 includes a bottom plate 8, a top plate and side plates, the bottom plate 8 is fixed to the bottom of the side plates, the floating plate 4 is parallel to the bottom plate 8, and the first slide rail 1, the second slide rail 5, the first return spring 3, the second return spring 6, the floating plate 4 and the movable member 2 are all arranged inside the protective cover 7.

[0027] The first slide rail 1 is fixed to the floating plate 4, the lower end of the second slide rail 5 is fixed to the bottom plate 8, the upper end of the second slide rail 5 passes through the floating plate 4 from bottom to top, the second return spring 6 is arranged between the floating plate 4 and the bottom plate 8, wherein the second return spring 6 is sleeved on the second slide rail 5; the movable member 2 is arranged on the first slide rail 1, the upper end of the first return spring 3 is fixed to the movable member 2, the lower end of the first return spring 3 is fixed to the floating plate 4, and one end of the operation cable 9 is located outside the hoistway, and the other end of the operation cable 9 passes through the bottom plate 8 and the floating plate 4 in sequence and is connected to the movable member 2.

[0028] The first slide rails 1 in the two reset components are both inclinedly distributed, and from top to bottom, the distance between the first slide rails 1 in the two reset components gradually decreases. The speed limiter wire rope is located between the movable members 2 in the two reset components. The number of the second return springs 6 in one reset component is two, the number of the second slide rails 5 in one reset component is two, and the second slide rails 5 are parallelly distributed, and one second return spring 6 corresponds to one second slide rail 5.

[0029] Both the bottom plate 8 and the floating plate 4 are provided with first through holes for the operation cable 9 to pass through. At the same time, the bottom plate 8, the floating plate 4 and the protective cover 7 are provided with second through holes for the speed limiter wire rope to pass through, and the speed limiter wire rope passes through the bottom plate 8, the floating plate 4 and the protective cover 7.

[0030] The operation method of the machine roomless speed limiter mechanical reset assist device according to the present invention includes the following steps:

[0031] When the first reset spring 3 is not actuated, the movable member 2 remains at the upper part of the first slide rail 1 and does not affect the normal rotation of the speed limiter. The second slide rail 5 is fixed to the bottom plate 8, and the floating plate 4 and the second reset spring 6 are guided by the second slide rail 5. The floating plate 4 and the second reset spring 6 move on the second slide rail 5. When the safety clamp is normally reset after the speed limiter-safety clamp interlock test, but the speed limiter is not reset normally, the staff pulls the operation wire 9 outside the hoistway. The operation wire 9 drives the movable member 2 to move downward, and finally the speed limiter wire rope is clamped by the movable member 2 in the two reset components. At the same time, the first reset spring 3 is compressed. Then, the operation wire 9 is continuously pulled, and the floating plate 4 moves downward along the second slide rail 5 together, compressing the second reset spring 6. The speed limiter wire rope moves downward by a certain distance. Then, the operation wire 9 is released, and the present invention automatically resets under the action of the first reset spring 3 and the second reset spring 6. The elevator moves upward emergently by electricity, and it is observed whether the speed limit mechanical part is reset normally. When it is not reset normally, the above operation can be repeated. When the reset is normal, the operation of the present invention can be stopped.

[0032] It should be noted that the present invention has the following advantages over the prior art:

[0033] 1) The present invention can operate the speed limiter outside the hoistway, solve the problem that the mechanical reset of the machine-roomless speed limiter is abnormal, and has high safety.

[0034] 2) After the present invention operates, the speed limiter can be reset by reverse operation of the mechanical reset without other operations.

[0035] 3) According to the specific situation, the operation can be carried out outside the hoistway, and the operation can be carried out multiple times until the speed limiter is reset normally.

[0036] 4) The present invention does not involve electrical devices, has a simple mechanical structure, and has high reliability.

[0037] 5) The present invention does not need to change the existing elevator electrical system, building structure and mechanical structure, has low construction cost, and is relatively convenient for construction.

[0038] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the specific implementation manners of the present invention can still be modified or equivalently replaced, and any modification or equivalent replacement without departing from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. An auxiliary device for mechanical reset of a machine-roomless speed limiter, characterized in that It includes a bottom plate (8), a floating plate (4) and two reset components; the reset component includes a first slide rail (1), a first reset spring (3), a second reset spring (6), an operating cable (9) and a movable part (2); The bottom plate (8) is fixed to the bottom of the side plate, and the floating plate (4) is located above the bottom plate (8); the first slide rail (1) is fixed to the floating plate (4), the second reset spring (6) is arranged between the floating plate (4) and the bottom plate (8), the movable part (2) is arranged on the first slide rail (1), the upper end of the first reset spring (3) is fixed to the movable part (2), the lower end of the first reset spring (3) is fixed to the floating plate (4), one end of the operating cable (9) is located outside the hoistway, and the other end of the operating cable (9) sequentially passes through the bottom plate (8) and the floating plate (4) and is connected to the movable part (2); From top to bottom, the distance between the first slide rails (1) in the two reset components gradually decreases, and the governor wire rope is located between the movable parts (2) in the two reset components; The floating plate (4) is parallel to the bottom plate (8); The first slide rails (1) in the two reset components are both inclinedly distributed.

2. The auxiliary device for mechanical reset of a machine-roomless speed limiter according to claim 1, characterized in that The lower end of the second slide rail (5) is fixed to the bottom plate (8), the upper end of the second slide rail (5) passes through the floating plate (4) from bottom to top, and the second reset spring (6) is sleeved on the second slide rail (5).

3. The auxiliary device for mechanical reset of a machine-roomless speed limiter according to claim 2, characterized in that The number of the second reset springs (6) in one reset component is two, the number of the second slide rails (5) in one reset component is two, and one second reset spring (6) corresponds to one second slide rail (5).

4. The auxiliary device for mechanical reset of a machine-roomless speed limiter according to claim 2, characterized in that Each second slide rail (5) is parallelly distributed.

5. The auxiliary device for mechanical reset of a machine-roomless speed limiter according to claim 1, characterized in that It further includes a protective cover (7), wherein the lower end of the protective cover (7) is fixed to the bottom plate (8), and the floating plate (4), the first slide rail (1), the first reset spring (3), the second reset spring (6) and the movable part (2) are all arranged in the protective cover (7).

6. The auxiliary device for mechanical reset of a machine-roomless speed limiter according to claim 1, characterized in that Both the bottom plate (8) and the floating plate (4) are provided with first through holes for the operating cable (9) to pass through.

7. The auxiliary device for mechanical reset of a machine-roomless speed limiter according to claim 1, characterized in that Both the bottom plate (8), the floating plate (4) and the protective cover (7) are provided with second through holes for the governor wire rope to pass through.

8. An operation method of the auxiliary device for mechanical reset of the machine-roomless speed limiter according to claim 1, characterized in that It includes the following steps: When the first reset spring (3) is not actuated, the movable part (2) remains at the upper part of the first slide rail (1), the second slide rail (5) is fixed to the bottom plate (8), the floating plate (4) and the second reset spring (6) are guided by the second slide rail (5), and the floating plate (4) and the second reset spring (6) move on the second slide rail (5); when the safety clamp is normally reset after the governor safety clamp linkage test and the governor is not normally reset, the staff pulls the operating cable (9) outside the hoistway, drives the movable part (2) to move downward through the operating cable (9), then clamps the governor wire rope through the movable parts (2) in the two reset components, simultaneously compresses the first reset spring (3), then continues to pull the operating cable (9), the floating plate (4) moves downward along the second slide rail (5) together, compresses the second reset spring (6), the governor wire rope moves downward by a certain distance, and then releases the operating cable (9).

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