Limiting structure of elevator buffer

Abstract

The limiting structure of the elevator buffer comprises the buffer, an annular limiting plate is placed on the outer side of the buffer, a mounting block is connected to one side of the annular limiting plate, corresponding groove holes are formed in the mounting block and the annular limiting plate, and limiting mechanisms are arranged in the groove holes. Compared with the prior art, the limiting structure of the elevator buffer has the advantages that the problems that an existing limiting structure of the elevator buffer is poor in stability, inconvenient to mount and dismount and the like are solved, and the working reliability and maintenance convenience of the elevator buffer are improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator safety equipment technology, specifically a limiting structure for an elevator buffer. Background Technology

[0002] Elevator buffers are crucial for the safe operation of elevators. In the event of an elevator fall or other unexpected incidents, the buffer absorbs the elevator's kinetic energy and reduces the impact, thus protecting the lives of passengers and the elevator itself. The limiting structure plays a key role in the stable installation and normal operation of the buffer, ensuring it maintains the correct position during operation and preventing displacement or swaying that could affect its buffering effect.

[0003] Currently, existing elevator buffer limiting structures have many problems. Some limiting structures use simple fixing methods, such as bolt fixing. Under the vibration generated by long-term elevator operation, the bolts are prone to loosening, causing the buffer position to shift and reducing the buffer's reliability. Other limiting structures are inconvenient to install and disassemble, requiring a lot of time and manpower for maintenance and repair. Therefore, designing a stable and easy-to-install elevator buffer limiting structure is of great practical significance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a limiting structure for elevator buffers. It aims to solve the problems of poor stability and inconvenient installation and disassembly of existing elevator buffer limiting structures, and improve the reliability of elevator buffer operation and the convenience of maintenance.

[0005] To solve the above problems, the technical solution of this utility model is as follows: a limiting structure for an elevator buffer, including a buffer, an annular limiting plate placed on the outside of the buffer, an mounting block connected to one side of the annular limiting plate, and corresponding slots opened on the mounting block and the annular limiting plate, with a limiting mechanism provided inside the slots.

[0006] Furthermore, the limiting mechanism includes a conical fixing block, the conical fixing block having a threaded groove inside, limiting ball grooves fixedly connected to the bottom of the conical fixing block around its perimeter, limiting blocks fixedly connected to one side of each of the four limiting ball grooves, ball bearings connected to the upper side of each of the four limiting blocks, and a rod inserted inside the conical fixing block.

[0007] Furthermore, a threaded post is fixedly connected to the bottom end of the insertion rod, a spring is fixedly connected to the bottom end of the threaded post, and a conical block is fixedly connected to the bottom end of the spring. The conical block is located in the center of the four balls, and the diameter of the four limiting ball grooves is larger than the diameter of the four balls.

[0008] Furthermore, a screw head is fixedly connected to the end of the insertion rod.

[0009] The advantages of this invention compared to existing technologies are as follows:

[0010] 1. The buffer is initially limited by the annular limiting plate. Combined with the cooperation of the conical fixing block, the plug rod, the spring and other components in the limiting mechanism, the buffer can be effectively prevented from shifting or shaking during elevator operation, which greatly improves the stability and reliability of the buffer.

[0011] 2. Operators can easily move the insertion rod up and down by turning the screw head, thereby completing the installation and disassembly of the limit structure. Compared with the traditional bolt fixing method, this greatly improves the efficiency of installation and maintenance, and saves time and labor costs. Attached Figure Description

[0012] Figure 1 This utility model relates to a three-dimensional limiting structure for an elevator buffer. Figure 1 .

[0013] Figure 2 This utility model relates to a three-dimensional limiting mechanism in the limiting structure of an elevator buffer. Figure 2 .

[0014] Figure 3 This utility model relates to a three-dimensional limiting mechanism in the limiting structure of an elevator buffer. Figure 3 .

[0015] As shown in the figure: 1. Buffer; 2. Annular limiting plate; 3. Mounting block; 4. Limiting mechanism; 401. Conical fixing block; 402. Threaded slot; 403. Limiting ball groove; 404. Limiting block; 405. Ball; 406. Insert rod; 407. Threaded column; 408. Spring; 409. Conical block; 410. Tightening head. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0017] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0018] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0019] like Figures 1 to 3As shown, a limiting structure for an elevator buffer includes a buffer 1. An annular limiting plate 2 is placed on the outer side of the buffer 1. A mounting block 3 is connected to one side of the annular limiting plate 2. Corresponding slots are formed on the mounting block 3 and the annular limiting plate 2, and a limiting mechanism 4 is provided inside the slots. The annular limiting plate 2 surrounds the outer side of the buffer 1, providing initial limiting for the buffer 1. The mounting block 3 facilitates fixing the entire limiting structure to the corresponding position on the elevator, and the limiting mechanism 4 further enhances the stability of the limiting.

[0020] The limiting mechanism 4 includes a conical fixing block 401, which has a threaded slot 402 inside. Limiting ball grooves 403 are fixedly connected to the four sides of the bottom of the conical fixing block 401. Limiting blocks 404 are fixedly connected to one side of each of the four limiting ball grooves 403. Ball bearings 405 are connected to the upper side of each of the four limiting blocks 404. A rod 406 is provided inside the conical fixing block 401. The threaded slot 402 can be used to cooperate with bolts or other connecting parts to fix the conical fixing block 401. The limiting ball grooves 403, limiting blocks 404, and ball bearings 405 cooperate to limit and guide the rod 406.

[0021] The bottom end of the insertion rod 406 is fixedly connected to a threaded post 407, the bottom end of the threaded post 407 is fixedly connected to a spring 408, and the bottom end of the spring 408 is fixedly connected to a conical block 409. The conical block 409 is located in the center of the four balls 405, and the diameter of the four limiting ball grooves 403 is larger than the diameter of the four balls 405. When the insertion rod 406 moves downward, the threaded post 407 can cooperate with the threaded slot 402, the spring 408 provides elastic support, and the conical block 409 contacts the balls 405. Under the action of the spring 408, the stability of the limiting is further enhanced.

[0022] The end of the insertion rod 406 is fixedly connected to a screw head 410, which facilitates manual operation of the insertion rod 406 by the operator, thus enabling convenient installation and disassembly.

[0023] During installation, first, place the annular limiting plate 2 outside the buffer 1, aligning the mounting block 3 with the corresponding installation position on the elevator. Secure the mounting block 3 to the elevator using bolts or other connecting components. Then, insert the conical fixing block 401 into the slot corresponding to the annular limiting plate 2 on the mounting block 3, aligning the threaded slot 402 with the slot. Next, hold the screw head 410 and insert the insertion rod 406 into the threaded slot 402 of the conical fixing block 401. Rotate the screw head 410 downwards to thread the threaded post 407 into the threaded slot 402. As the insertion rod 406 descends, the spring 408 is compressed, and the conical block 409 gradually contacts and presses against the ball 405. Under the constraint of the limiting ball groove 403 and the limiting block 404, the ball 405 further fixes the position of the insertion rod 406, thus completing the installation of the entire limiting structure.

[0024] During disassembly, rotate the screw head 410 in the opposite direction to move the insert rod 406 upward. The spring 408 gradually returns to its original shape, causing the conical block 409 and the threaded column 407 to rise. Once the insert rod 406 is completely disengaged from the threaded slot 402, the conical fixing block 401 can be removed. Then, the connector on the mounting block 3 is removed, and the annular limiting plate 2 is removed from the outside of the buffer 1 to complete the disassembly process.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A limiting structure for an elevator buffer, comprising a buffer (1), characterized in that: An annular limiting plate (2) is placed on the outside of the buffer (1). An installation block (3) is connected to one side of the annular limiting plate (2). Corresponding slots are opened on the installation block (3) and the annular limiting plate (2). A limiting mechanism (4) is provided inside the slot.

2. The limiting structure of an elevator buffer according to claim 1, characterized in that: The limiting mechanism (4) includes a conical fixing block (401), the conical fixing block (401) has a threaded slot (402) inside, the bottom of the conical fixing block (401) is fixedly connected to the four sides of the bottom, the four limiting ball grooves (403) are fixedly connected to one side of each of the four limiting ball grooves (403), the upper side of each of the four limiting blocks (404) is connected to a ball (405), and the conical fixing block (401) has an insert rod (406) inside.

3. The limiting structure of an elevator buffer according to claim 2, characterized in that: The bottom end of the insertion rod (406) is fixedly connected to a threaded post (407), the bottom end of the threaded post (407) is fixedly connected to a spring (408), the bottom end of the spring (408) is fixedly connected to a conical block (409), the conical block (409) is located in the center of the four balls (405), and the diameter of the four limiting ball grooves (403) is larger than the diameter of the four balls (405).

4. The limiting structure of an elevator buffer according to claim 3, characterized in that: The end of the insertion rod (406) is fixedly connected with a screw head (410).

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