Machine-room-less speed limiter mechanical reset auxiliary device

Abstract

The utility model relates to the technical field of elevator speed limiters, and particularly discloses a machine-room-less speed limiter mechanical reset auxiliary device which comprises a shell, a lifting plate is slidably mounted in the shell, a pull wire penetrates through the lifting plate and the shell, a first through hole is formed in the joint of the pull wire and the lifting plate, and a second through hole is formed in the shell. A second through hole is formed in the connecting position of the pull wire and the shell, and protection assemblies are arranged in the first through hole and the second through hole correspondingly. The protection assembly comprises wear-resistant rubber, a movable hole is formed in the wear-resistant rubber, a ball is embedded in the movable hole, a supporting sleeve is arranged on the surface of the ball and fixed to the wear-resistant rubber, and a connecting rod is arranged on one side of the supporting sleeve and fixed into the first through hole and the second through hole correspondingly. According to the utility model, the stay wire can be protected and cannot be in direct contact with the shell and the lifting plate, so that the abrasion between the stay wire and the shell as well as between the stay wire and the lifting plate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator speed limiters, in particular to a mechanical resetting auxiliary device for a speed limiter without a machine room. Background Art

[0002] The elevator speed limiter is one of the safety control components in the elevator safety protection system. When the elevator car is overspeeding or even in danger of falling for any reason during operation, and all other safety protection devices do not work, the speed limiter and safety clamp will work together to stop the elevator car.

[0003] At present, it is inconvenient to inspect and repair the machine room-less speed limiter due to the small operating space of the machine room-less speed limiter;

[0004] The existing public technical scheme, with announcement number CN218909497U, discloses a mechanical reset auxiliary device for a machine room-less speed limiter, in which the lower end of the first reset spring is fixed on a floating plate, one end of the operating wire is located outside the shaft, and the other end of the operating wire passes through the bottom plate and the floating plate in sequence to be connected to the movable part; from top to bottom, the distance between the first slide rails in the two reset assemblies gradually decreases, and the speed limiter wire rope is located between the movable parts in the two reset assemblies. The device can operate the speed limiter outside the shaft, thereby solving the problem of abnormal mechanical reset of the machine room-less speed limiter.

[0005] When the above technical solution is actually implemented, the floating plate is moved by pulling the operating wire, and the operating wire directly runs through the floating plate. As the operating wire is repeatedly pulled, friction with the floating plate is inevitable, which can easily cause wear of the operating wire or the floating plate and affect the normal use of the operating wire. Summary of the invention

[0006] The purpose of the utility model is to provide a mechanical reset auxiliary device for a machine room-less speed limiter, which can protect the pull wire. The pull wire does not directly contact the shell and the lifting plate, reducing the wear between the pull wire and the shell and the lifting plate, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical reset auxiliary device for a speed limiter without a machine room, comprising a shell, a lifting plate is slidably installed inside the shell, and a pull wire is passed through the lifting plate and the shell, a first through hole is opened at the connection between the pull wire and the lifting plate, and a second through hole is opened at the connection between the pull wire and the shell, a protection component is arranged inside the first through hole and the second through hole, a slider component is arranged on the top of the pull wire, and an oblique support frame fixed to the top of the lifting plate is arranged on one side of the slider component;

[0008] The protection component includes wear-resistant rubber. An activity hole is formed inside the wear-resistant rubber, and a ball is embedded in the activity hole. A support sleeve is arranged on the surface of the ball, and the support sleeve is fixed on the wear-resistant rubber. A connecting rod is arranged on one side of the support sleeve, and the connecting rod is respectively fixed in the first through hole and the second through hole. A buffer spring is sleeved outside the support sleeve, and two ends of the buffer spring are respectively connected to the wear-resistant rubber and the first through hole.

[0009] Preferably, the ball protrudes from the wear-resistant rubber, and the wear-resistant rubber is distributed in a cross shape inside the first through hole and the second through hole.

[0010] Preferably, the slider component includes a sliding block. An installation hole is formed inside the sliding block, and a fixing bolt is connected to one side of the sliding block. The end of the fixing bolt is threadedly connected to an internal nut fixed on the sliding block.

[0011] Preferably, the slider component further includes an iron ring arranged on the wire. An inclined chute is arranged between the inclined support frame and the sliding block.

[0012] Preferably, connecting springs are installed at the four corners of the bottom of the lifting plate, and guide posts are arranged inside the connecting springs. The guide posts penetrate through the lifting plate and are fixedly connected with anti-detaching stoppers.

[0013] Preferably, a support spring is arranged between the sliding block and the lifting plate.

[0014] Preferably, a lifting chute is arranged between the housing and the lifting plate, and a lifting slider is arranged inside the lifting chute.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By arranging the protection component, the wire can be protected. The wire does not directly contact the housing and the lifting plate, reducing the wear between the wire and the housing and the lifting plate, and further reducing the friction through the ball;

[0017] 2. By arranging the slider component, the sliding block and the wire can be quickly connected, facilitating the replacement of the damaged wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is the overall structural view of the present utility model;

[0020] Figure 2 It is the schematic structural view of the housing of the present utility model;

[0021] Figure 3 It is the schematic structural view of the wear-resistant rubber of the present utility model;

[0022] Figure 4 It is the schematic structural view of the sliding block of the present utility model.

[0023] Explanation of reference numerals:

[0024] 1. Housing; 2. Lifting plate; 3. Pull wire; 4. Slide block assembly; 401. Sliding block; 402. Iron ring; 403. Mounting hole; 404. Fixing bolt; 405. Built-in nut; 5. Protection assembly; 501. Wear-resistant rubber; 502. Movable hole; 503. Support sleeve; 504. Connecting rod; 505. Buffer spring; 506. Ball; 6. First through hole; 7. Second through hole; 8. Oblique support frame; 9. Support spring; 10. Lifting chute; 11. Lifting slider; 12. Guide post; 13. Connecting spring; 14. Anti-disengagement plug; 15. Oblique chute. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] The present utility model provides a technical solution:

[0027] Please refer to Figures 1 to 4 , a mechanical reset assist device for a machine roomless speed limiter, including a housing 1, a lifting plate 2 is slidably installed inside the housing 1, and a pull wire 3 passes through the inside of the lifting plate 2 and the housing 1. A first through hole 6 is opened at the connection between the pull wire 3 and the lifting plate 2, and a second through hole 7 is opened at the connection between the pull wire 3 and the housing 1. A protection assembly 5 is arranged inside both the first through hole 6 and the second through hole 7. A slide block assembly 4 is arranged at the top of the pull wire 3, and an oblique support frame 8 fixed to the top of the lifting plate 2 is arranged on one side of the slide block assembly 4;

[0028] The protection component 5 includes wear-resistant rubber 501. An activity hole 502 is formed inside the wear-resistant rubber 501, and a ball 506 is embedded inside the activity hole 502. A support sleeve 503 is arranged on the surface of the ball 506, and the support sleeve 503 is fixed on the wear-resistant rubber 501. A connecting rod 504 is arranged on one side of the support sleeve 503, and the connecting rod 504 is respectively fixed in the first through hole 6 and the second through hole 7. A buffer spring 505 is sleeved outside the support sleeve 503, and both ends of the buffer spring 505 are respectively connected to the wear-resistant rubber 501 and the first through hole 6.

[0029] The ball 506 protrudes from the wear-resistant rubber 501, and the wear-resistant rubber 501 is distributed in a cross shape inside the first through hole 6 and the second through hole 7.

[0030] By adopting the above technical solution, the pull wire 3 passes through the first through hole 6 and the second through hole 7 to be connected with the slider assembly 4. Pulling the slider assembly 4 can drive the slider assembly 4 to move downward, thereby driving the lifting plate 2 to move through the slider assembly 4. The pull wire 3 does not directly contact the first through hole 6 and the second through hole 7. The pull wire 3 is composed of a steel wire rope. Since the stiffness of the wear-resistant rubber 501 is less than that of the pull wire 3, the friction between the pull wire 3 and the wear-resistant rubber 501 will damage the wear-resistant rubber 501, thus playing a certain protective role for the pull wire 3. And the pull wire 3 directly contacts the ball 506. When the pull wire 3 moves, it can drive the ball 506 to roll in the support sleeve 503, thereby reducing the frictional force on the surface of the pull wire 3.

[0031] Specifically, as Figure 2 and Figure 4 shown, the slider assembly 4 includes a sliding block 401. An installation hole 403 is formed inside the sliding block 401, and a fixing bolt 404 is connected to one side of the sliding block 401. The end of the fixing bolt 404 is threadedly connected to an internal nut 405 fixed on the sliding block 401. The slider assembly 4 further includes an iron ring 402 arranged on the pull wire 3. An inclined chute 15 is arranged between the inclined support frame 8 and the sliding block 401. Connecting springs 13 are installed at the four corners of the bottom of the lifting plate 2, and a guide post 12 is inserted inside the connecting spring 13. The guide post 12 passes through the lifting plate 2 and is fixedly connected with an anti-detachment plug 14. A support spring 9 is arranged between the sliding block 401 and the lifting plate 2. A lifting chute 10 is arranged between the housing 1 and the lifting plate 2, and a lifting slider 11 is arranged inside the lifting chute 10.

[0032] By adopting the above technical solution, when the wire rope 3 is installed inside the sliding block 401, one end of the iron ring 402 of the wire rope 3 is inserted into the mounting hole 403, and the fixing bolt 404 is screwed into the sliding block 401 to connect the fixing bolt 404 with the built-in nut 405, so that the wire rope 3 can be replaced conveniently, quickly and timely. When the wire rope 3 pulls the sliding block 401 to move, the sliding block 401 can slide on the inclined support frame 8 through the inclined chute 15, thereby reducing the distance between the sliding block 401 and the lifting plate 2. As the wire rope 3 is continuously pulled, the lifting plate 2 can be driven to move downward, and then the lifting plate 2 is driven to press the connecting spring 13.

[0033] Working principle: The wire rope 3 passes through the first through hole 6 and the second through hole 7 and is connected to the slider assembly 4. Pulling the slider assembly 4 can drive the slider assembly 4 to move downward, so as to drive the lifting plate 2 to move through the slider assembly 4. The wire rope 3 does not directly contact the first through hole 6 and the second through hole 7. The wire rope 3 is composed of a steel wire rope. Since the stiffness of the wear-resistant rubber 501 is less than that of the wire rope 3, the friction between the wire rope 3 and the wear-resistant rubber 501 will damage the wear-resistant rubber 501, thus playing a certain protective role for the wire rope 3. The wire rope 3 directly contacts the ball 506. When the wire rope 3 moves, it can drive the ball 506 to roll in the support sleeve 503, thereby reducing the friction force on the surface of the wire rope 3.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mechanical reset auxiliary device for a speed limiter without a machine room, comprising a housing (1), characterized in that: A lifting plate (2) is slidably mounted inside the shell (1), and a pull wire (3) is passed through the lifting plate (2) and the shell (1), a first through hole (6) is provided at the connection between the pull wire (3) and the lifting plate (2), and a second through hole (7) is provided at the connection between the pull wire (3) and the shell (1), a protection component (5) is provided inside the first through hole (6) and the second through hole (7), a slider component (4) is provided at the top of the pull wire (3), and an oblique support frame (8) fixed to the top of the lifting plate (2) is provided on one side of the slider component (4); The protection component (5) comprises a wear-resistant rubber (501), a movable hole (502) is provided inside the wear-resistant rubber (501), and a ball (506) is embedded and installed inside the movable hole (502), a support sleeve (503) is provided on the surface of the ball (506), and the support sleeve (503) is fixed on the wear-resistant rubber (501), a connecting rod (504) is provided on one side of the support sleeve (503), and the connecting rod (504) is respectively fixed in the first through hole (6) and the second through hole (7), and a buffer spring (505) is sleeved on the outside of the support sleeve (503), and two ends of the buffer spring (505) are respectively connected to the wear-resistant rubber (501) and the first through hole (6).

2. The mechanical reset auxiliary device for a speed limiter without a machine room according to claim 1, characterized in that: The rolling balls (506) protrude from the wear-resistant rubber (501), and the wear-resistant rubber (501) is distributed in a cross shape inside the first through hole (6) and the second through hole (7).

3. The mechanical reset auxiliary device for a speed limiter without a machine room according to claim 1, characterized in that: The slider assembly (4) comprises a sliding block (401), a mounting hole (403) is provided inside the sliding block (401), a fixing bolt (404) is connected to one side of the sliding block (401), and a built-in nut (405) is threadedly connected to the end of the fixing bolt (404) and fixed to the sliding block (401).

4. The mechanical reset auxiliary device for a speed limiter without a machine room according to claim 3 is characterized in that: The slider assembly (4) further comprises an iron ring (402) arranged on the pull wire (3), and an oblique sliding groove (15) is arranged between the oblique support frame (8) and the sliding block (401).

5. The mechanical reset auxiliary device for a speed limiter without a machine room according to claim 4, characterized in that: Connecting springs (13) are installed at the four corners of the bottom of the lifting plate (2), and a guide column (12) is inserted into the interior of the connecting spring (13). The guide column (12) passes through the lifting plate (2) and is fixedly connected with an anti-slip plug (14).

6. The mechanical reset auxiliary device for a speed limiter without a machine room according to claim 5, characterized in that: A supporting spring (9) is provided between the sliding block (401) and the lifting plate (2).

7. The mechanical reset auxiliary device for a speed limiter without a machine room according to claim 1, characterized in that: A lifting slot (10) and a lifting slider (11) are arranged inside the lifting slot (10) and between the housing (1) and the lifting plate (2).

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