A safety clamp arrangement structure for heavy-duty elevators
By adopting a buffer structure that defines square grooves, guide rods, springs, slide rails and guide columns in the safety pliers of heavy-duty elevators, the problem of weakening braking effect caused by loose and shaking of the safety pliers is solved, and precise braking and cushioning protection of the elevator rails is achieved.
Patent Information
- Application Number
- CN202421323717.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The safety pliers of existing heavy-load elevators are likely to affect the braking effect due to loose connections and slight shaking during installation and use.
A buffer structure including a defined square groove, guide rod, spring, slide rail and guide column is adopted to assist in buffer protection and reset adjustment to prevent loosening and shaking from affecting the braking operation of the safety clamp.
It effectively prevents the problem of weakening braking effect caused by loosening and shaking of the safety clamp, ensures the precise braking of the elevator guide rail by the safety clamp, and ensures the braking effect after reset and adjustment.
Smart Images
Figure CN222699779U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heavy-load elevators, in particular to a safety clamp arrangement structure for heavy-load elevators. Background Art
[0002] Compared with ordinary elevators, heavy-duty elevators are specially used to transport goods, machinery and equipment, large objects and personnel, etc. They are usually used in commercial, industrial and public places. When assembling safety clamps on heavy-duty elevators, 4-6 safety clamps are usually arranged and installed on the top and bottom of the elevator car in sequence;
[0003] In the prior art, when the safety clamps need to be arranged and installed, multiple safety clamps are mainly connected to the upper and lower beam frames by bolts, so as to be quickly arranged and installed at the top and bottom positions of the elevator car. However, due to the influence of multiple lifting and lowering of the elevator, the connection structure of the safety clamp arrangement is loose and easy to loosen. The looseness generated at this time will not only cause slight shaking problems in the stable arrangement and installation of the safety clamps, but also affect the normal precise braking operation of the safety clamps on the elevator guide rails, and the overall braking effect will also be weakened. Therefore, in view of the above problems, a safety clamp arrangement structure for heavy-load elevators is proposed. Utility Model Content
[0004] The utility model aims to provide a safety clamp arrangement structure for a heavy-load elevator, so as to solve the problem in the prior art proposed in the above-mentioned background technology that when the safety clamp arranged and installed on the beam frame is used for braking operation, the braking operation is affected due to loose connection or shaking of accessories.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A safety clamp arrangement structure for a heavy-load elevator comprises a shell top plate, guide blocks are fixedly connected to the two sides of the bottom of the shell top plate, and a car beam frame body is fixedly connected to the top bolts of the shell top plate, a square opening is opened in the middle position of the front end of the shell top plate, and limited square grooves are opened at the two sides of the front end of the shell top plate respectively, a guide rod is slidably connected to one side of the inner side of the limited square groove, and a spring is arranged on the other side of the inner side of the limited square groove, a small pulley is arranged on one side of the guide rod close to the middle position of the square opening, a slide rail is fixedly connected to the front end position of the inner side of the limited square groove, a guide column is slidably connected to the inner side of the slide rail, an elevator guide rail body is inserted in the middle position of the square opening, and the guide column and guide rod are fixedly connected.
[0007] Preferably, the bottom of the guide block is fixedly connected to a limiting frame, and a brake wedge body is provided on one side of the limiting frame close to the elevator guide rail body. The brake wedge bodies are provided in one group, and one end of the brake wedge body is fixedly connected to a lifting connecting rod.
[0008] Preferably, a large pulley is rotatably mounted on the bottom end of the brake wedge body, and the large pulley and the small pulley are respectively arranged in contact with and in close contact with the side end surface of the elevator guide rail body.
[0009] Preferably, one side end of the guide rod and one side end of the spring are fixedly connected, and the guide rod is slidably connected through a guide column and a slide rail, the spring and the slide rail are adjacent to each other in front and back positions, the small pulley extends to the interior of the square opening, and the small pulley is symmetrically arranged along the vertical center axis of the front end of the shell top plate as the axis of symmetry.
[0010] Preferably, a pointer is fixedly connected to the front end of the guide column, and scales are provided at the lower positions of both sides of the front end of the shell top plate, and the sharp end of the pointer is opposite to the scales.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] In the utility model, by setting the limiting square groove, guide rod, spring, slide rail and guide column, it will be convenient for the heavy-load elevator safety clamp to be used during the arrangement and installation. For the problem of loose connection and slight shaking of accessories, the buffer structure assembled by the limiting square groove, guide rod, spring, slide rail and guide column can be used to perform auxiliary buffer protection and auxiliary reset adjustment on the use of the entire safety clamp accessories, so as to prevent the safety clamp from being unable to perform accurate braking operation on the elevator guide rail normally due to the influence of looseness and shaking, and after the auxiliary reset adjustment is obtained, the braking effect of the safety clamp when actually braking the elevator can also be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;
[0015] Figure 3 This is a schematic diagram of the top plate structure of the shell of the utility model.
[0016] In the figure: 1, shell top plate; 2, guide block; 3, car beam frame body; 4, square opening; 5, elevator guide rail body; 6, limiting square groove; 7, guide rod; 8, spring; 9, slide rail; 10, guide column; 11, pointer; 12, scale; 13, small pulley; 14, limiting frame; 15, brake wedge body; 16, lifting connecting support rod; 17, large pulley. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-3 , the utility model provides a technical solution:
[0019] A safety clamp arrangement structure for a heavy-load elevator comprises a shell top plate 1, guide blocks 2 are fixedly connected to both sides of the bottom of the shell top plate 1, and a car beam frame body 3 is fixedly connected to the top bolts of the shell top plate 1, a square opening 4 is opened in the middle position of the front end of the shell top plate 1, and limited square grooves 6 are respectively opened at both sides of the front end of the shell top plate 1, a guide rod 7 is slidably connected to one side of the inner side of the limited square groove 6, and a spring 8 is provided on the other side of the inner side of the limited square groove 6, a small pulley 13 is provided on one side of the guide rod 7 near the middle position of the square opening 4, a slide rail 9 is fixedly connected to the inner front end of the limited square groove 6, a guide column 10 is slidably connected to the inner side of the slide rail 9, an elevator guide rail body 5 is inserted in the middle position of the square opening 4, and the guide column 10 and the guide rod 7 are fixedly connected.
[0020] like Figure 1 and Figure 2 As shown, a limiting frame 14 is fixedly connected to the bottom of the guide block 2, and a brake wedge body 15 is provided at a side position of the limiting frame 14 close to the elevator guide rail body 5. A group of brake wedge bodies 15 are provided, and one end of the brake wedge body 15 is fixedly connected to a pulling connecting support rod 16. When the elevator stops running and braking operation is required, a group of brake wedge bodies 15 linked by the pulling rope assembly will abut against the elevator guide rail body 5 through its own clamping, and cooperate with the entire accessory to achieve the braking operation of the elevator guide rail; a large pulley 17 is rotatably installed on the bottom end of the brake wedge body 15, and the large pulley 17 and the small pulley 13 are respectively arranged in contact with the side end surface of the elevator guide rail body 5. By setting a group of large pulleys 17, this setting can assist the safety clamp in centering installation without affecting the normal operation of the elevator.
[0021] like Figure 1 , Figure 2 and Figure 3As shown, one side end of the guide rod 7 and one side end of the spring 8 are fixedly connected, and the guide rod 7 is slidably connected through a guide column 10 and a slide rail 9. The spring 8 and the slide rail 9 are adjacent to each other in front and back positions. The small pulley 13 extends to the inside of the square hole 4, and the small pulley 13 is symmetrically arranged along the vertical center axis of the front end of the shell top plate 1 as the symmetry axis. When the guide rod 7 squeezes the spring 8 to cause a lateral displacement, the guide column 10 will slide synchronously along the inside of the slide rail 9 to guide and assist in limiting the guide rod 7; a pointer 11 is fixedly connected to the front end of the guide column 10, and scales 12 are provided at the lower positions on both sides of the front end of the shell top plate 1. The sharp end of the pointer 11 is opposite to the scale 12. When the guide rod 7 is moved, the pointer 11 will realize synchronous movement along the scale 12 provided below, so that subsequent maintenance personnel can judge the current loose connection status of the safety clamp by observing whether the left and right sets of pointers 11 are on the same scale 12.
[0022] Working process: The safety clamp accessories in the utility model need to be quickly connected to the elevator pulling rope assembly through the lifting connecting support rod 16 before use. When it is necessary to arrange and install the safety clamps of multiple heavy-load elevators, first, the elevator guide rail body 5 passes through the middle position of the square through-hole 4 and a group of brake wedge block bodies 15, and after the shell top plate 1 is arranged to the bottom position of the car beam frame body 3, the shell top plate 1 and the car beam frame body 3 are fixed together through multiple bolt fixings under the one-to-one adaptation of the upper and lower hole grooves, and a group of small pulleys 13 and a group of large pulleys 17 are respectively in contact with the elevator guide rail body 5. The arrangement and installation of the entire heavy-load elevator safety clamp accessories can be completed, so that the entire heavy-load elevator can be conveniently installed. When emergency braking is required, under the transmission action of the connecting rod mechanism, a group of brake wedge block bodies 15 are in clamping contact with the elevator guide rail body 5 to tightly brake the elevator. Due to the influence of multiple lifting and lowering actions of the elevator, the safety clamp connection becomes loose and slightly shakes. Under the limiting action of the slide rail 9, guide column 10 and limiting square groove 6, a group of small pulleys 13 that has been close to the elevator guide rail body 5 will use the rebound force generated by the deformation of the spring 8 after squeezing the spring 8 to slow down the connection shaking between the shell top plate 1 and the car beam frame body 3, which is also beneficial for the entire structure to use the generated rebound force to assist in resetting and adjusting the safety clamp structure, so that the safety clamp can accurately brake the elevator in the later stage.
[0023] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A safety clamp arrangement structure for a heavy-duty elevator, comprising a housing top plate (1), characterized in that: Guide blocks (2) are fixedly connected to both sides of the bottom of the shell top plate (1), and the top of the shell top plate (1) is fixedly connected to a car beam frame body (3) by bolts, a square opening (4) is provided at the middle position of the front end of the shell top plate (1), and limited square grooves (6) are respectively provided at both sides of the front end of the shell top plate (1), a guide rod (7) is slidably connected to one side of the limited square groove (6), and a spring (8) is provided on the other side of the limited square groove (6), a small pulley (13) is provided on one side of the guide rod (7) close to the middle position of the square opening (4), a slide rail (9) is fixedly connected to the front end of the limited square groove (6), and a guide column (10) is slidably connected to the inside of the slide rail (9), an elevator guide rail body (5) is inserted in the middle position of the square opening (4), and the guide column (10) and the guide rod (7) are fixedly connected.
2. A safety clamp arrangement structure for a heavy-load elevator according to claim 1, characterized in that: The bottom of the guide block (2) is fixedly connected to a limiting frame (14), and a brake wedge block body (15) is provided at a side position of the limiting frame (14) close to the elevator guide rail body (5). A group of brake wedge block bodies (15) is provided, and one end of the brake wedge block body (15) is fixedly connected to a lifting connection support rod (16).
3. A safety clamp arrangement structure for a heavy-load elevator according to claim 2, characterized in that: A large pulley (17) is rotatably mounted on the bottom end of the brake wedge body (15), and the large pulley (17) and the small pulley (13) are respectively arranged in contact with the side end surface of the elevator guide rail body (5).
4. The safety clamp arrangement structure of a heavy-load elevator according to claim 1, characterized in that: One side end of the guide rod (7) and one side end of the spring (8) are fixedly connected, and the guide rod (7) is slidably connected via a guide column (10) and a slide rail (9). The spring (8) and the slide rail (9) are adjacently arranged in front and rear positions. The small pulley (13) extends into the interior of the square opening (4), and the small pulley (13) is symmetrically arranged along the vertical center axis of the front end of the shell top plate (1) as a symmetry axis.
5. The safety clamp arrangement structure of a heavy-load elevator according to claim 1, characterized in that: A pointer (11) is fixedly connected to the front end of the guide column (10), and scales (12) are provided at the lower positions on both sides of the front end of the shell top plate (1), and the sharp end of the pointer (11) faces the scales (12).