Elevator pulley convenient to overhaul

Abstract

The utility model provides an elevator pulley convenient to overhaul, which belongs to the technical field of elevators and comprises an elevator car, a mounting rod, pulley mounting blocks and a pulley block, the mounting rod is fixedly arranged in the center of the upper surface of the elevator car, the pulley mounting blocks are mounted at the left end and the right end of the mounting rod, and the pulley block is fixedly mounted above the pulley mounting blocks; when the pulley block needs to be overhauled, the pawl is rotated to be separated from the gear, then the rotating shaft is rotated to drive the gear, the gear drives the rack to move, the two sliding blocks move in the opposite directions along the sliding grooves, and the sliding blocks drive the pulley installation blocks and the pulley block installed above the sliding blocks to move in the opposite directions. And the pulley block is separated from the sliding rail in the elevator shaft, so that the pulley block is convenient to overhaul.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator pulley which is easy to repair. Background Art

[0002] An elevator is a mechanical device used to transport people or goods between different floors in a building. It usually consists of a car and a drive system. The car is raised and lowered in the elevator shaft through a motor and a steel wire rope to transport people or goods between different floors.

[0003] During the lifting process of the elevator car, in order to reduce the friction between the car and the elevator shaft, it is usually necessary to install a pulley block on the side of the elevator car, install a slide rail in the elevator shaft, and the pulley block rolls on the slide rail to reduce the friction between the car and the elevator shaft. The pulley block in the prior art is usually fixedly installed on the side of the elevator car, which is not convenient for maintenance of the pulley block. Therefore, an elevator pulley that is easy to maintain is designed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the above-mentioned background technology and to propose an elevator pulley which is easy to repair.

[0005] The technical problem to be solved by the utility model is to provide an elevator pulley which is easy to repair, conveniently adjust the position of the pulley block for the repair of the pulley block, and conveniently disassemble and replace the pulley block, and has high practicality.

[0006] The utility model provides an elevator pulley which is easy to repair, comprising: an elevator car, a mounting rod, a pulley mounting block and a pulley block, wherein a mounting rod is fixedly arranged at the center of the upper surface of the elevator car, pulley mounting blocks are installed at both left and right ends of the mounting rod, and a pulley block is fixedly installed above the pulley mounting block;

[0007] The mounting rod includes a slide groove, a slider, a rack, a rotating shaft, a gear and a pawl. A slide groove is provided on the upper surface of the mounting rod. Slide blocks are slidably provided on the left and right sides of the slide groove. The slider and the slider are fixedly provided with a rack on the side facing the center of the slide groove. A rotating shaft is rotatably provided at the inner center of the slide groove. A gear is fixed on the rotating shaft. A pawl is rotatably provided at the inner center of the slide groove. The pulley mounting block is installed on the slider. Track grooves are provided on both sides of the bottom of the slide groove, and the rack slides in the track groove.

[0008] Preferably, the racks on the two sliders are respectively located on both sides of the gear, and the gear and the two racks are meshed with each other.

[0009] Preferably, the pawl is detachably engaged with the gear.

[0010] Preferably, the slider includes an embedding groove and a positioning hole, an embedding groove is opened in the center of the upper surface of the slider, and a positioning hole is opened on the upper surface of the slider. The pulley mounting block includes an embedding block, a fixing plate, a positioning bolt and a sleeve spring. An embedding block is fixedly provided in the center of the bottom surface of the pulley mounting block, a fixing plate is fixedly provided on the left surface of the pulley mounting block, a positioning bolt is provided through the center of the upper surface of the fixing plate, and a sleeve spring is fixedly provided between the positioning bolt and the upper surface of the fixing plate.

[0011] Preferably, the embedding groove is in a "convex" shape, and the embedding block is matched with the embedding groove, and the embedding block can slide in the embedding groove.

[0012] Preferably, the positioning bolt matches the positioning hole, and when the embedding block can slide in the embedding groove, the positioning bolt can be embedded in the positioning hole.

[0013] 1. When the pulley block needs to be inspected and repaired, the utility model rotates the ratchet pawl to separate the ratchet pawl from the gear, and then rotates the rotating shaft to rotate and drive the gear, so that the gear drives the rack to move, so that the two sliders move along the slide groove in relative directions, and the slider drives the pulley mounting block and the pulley block installed thereon to move in relative directions, so that the pulley block is separated from the slide rail in the elevator shaft, which is convenient for the inspection and repair of the pulley block. After the inspection and repair is completed, the rotating shaft is reversed, so that the rotating shaft drives the gear to reverse, and the gear drives the rack to move, so that the two sliders move in opposite directions until the pulley block contacts the slide rail in the elevator shaft, and the ratchet pawl is rotated to make the ratchet pawl and the gear mesh with each other, so as to achieve the effect of positioning the pulley block, and ensure that the pulley block slides stably on the slide rail in the elevator shaft.

[0014] 2. The utility model is provided with a pulley mounting block. When the pulley block needs to be replaced, the positioning bolt is pulled upward so that the positioning bolt comes out of the positioning hole. Then the pulley mounting block is slid left and right along the embedding groove so that the embedding block at the bottom of the pulley mounting block slides out of the embedding groove, making it convenient to take out the pulley mounting block and replace the pulley block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a three-dimensional schematic diagram of the local structure of the utility model.

[0018] Figure 3 For this utility model Figure 2A is an enlarged schematic diagram of the structure.

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the installation rod of the utility model when viewed from above.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the slider of the utility model.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the pulley mounting block of the utility model.

[0022] [Reference Signs]

[0023] 1. Elevator car; 2. Mounting rod; 201. Slide groove; 2011. Track groove; 202. Slider; 2021. Embedded groove; 2022. Positioning hole; 203. Rack; 204. Rotating shaft; 205. Gear; 206. Ratchet; 3. Pulley mounting block; 301. Embedded block; 302. Fixing plate; 303. Positioning bolt; 304. Sleeve spring; 4. Pulley block. DETAILED DESCRIPTION Example

[0024] like Figure 1-Figure 4 As shown, the embodiment of the utility model provides an elevator pulley that is easy to repair, including: an elevator car 1, a mounting rod 2, a pulley mounting block 3 and a pulley block 4, the mounting rod 2 is fixedly arranged at the center of the upper surface of the elevator car 1, the pulley mounting blocks 3 are installed at both left and right ends of the mounting rod 2, and the pulley block 4 is fixedly installed above the pulley mounting block 3;

[0025] The mounting rod 2 includes a slide groove 201, a slider 202, a rack 203, a rotating shaft 204, a gear 205 and a pawl 206. The upper surface of the mounting rod 2 is provided with a slide groove 201, and sliders 202 are slidably arranged on the left and right sides of the slide groove 201. The slider 202 and the slider 202 are fixedly provided with a rack 203 on the side facing the center of the slide groove 201. A rotating shaft 204 is rotatably arranged at the inner center of the slide groove 201, and a gear 205 is fixedly arranged on the rotating shaft 204. A pawl 206 is rotatably arranged at the inner center of the slide groove 201. The pulley mounting block 3 is installed on the slider 202. Track grooves 2011 are provided on both sides of the bottom of the slide groove 201, and the rack 203 slides in the track groove 2011.

[0026] The gear 205 drives the rack 203 to move, so that the two sliders 202 move in opposite directions along the slide groove 201, and the slider 202 drives the pulley mounting block 3 and the pulley block 4 installed thereon to move in opposite directions, so that the pulley block 4 is separated from the slide rail in the elevator shaft, which is convenient for the maintenance of the pulley block 4. After the maintenance is completed, the rotating shaft 204 is reversed, so that the rotating shaft 204 drives the gear 205 to reverse, and the gear 205 drives the rack 203 to move, so that the two sliders 202 move in opposite directions until the pulley block 4 contacts the slide rail in the elevator shaft, and the ratchet 206 is rotated to make the ratchet 206 and the gear 205 mesh with each other, so as to achieve the effect of positioning the pulley block 4, and ensure that the pulley block 4 slides stably on the slide rail in the elevator shaft.

[0027] In this embodiment, the racks 203 on the two sliders 202 are respectively located on both sides of the gear 205, and the gear 205 and the two racks 203 are meshed with each other, so that the gear 205 rotates and drives the two racks 203 to rotate at the same time, thereby achieving the effect of driving the two sliders 202 to move left and right.

[0028] In this embodiment, the pawl 206 and the gear 205 are detachably meshed, so that the pawl 206 can position the gear 205 easily.

[0029] In this embodiment, refer to Figure 5-Figure 6 As shown, the slider 202 includes an embedding groove 2021 and a positioning hole 2022. The embedding groove 2021 is opened in the center of the upper surface of the slider 202, and the positioning hole 2022 is opened in the upper surface of the slider 202. The pulley mounting block 3 includes an embedding block 301, a fixing plate 302, a positioning bolt 303 and a sleeve spring 304. The embedding block 301 is fixedly arranged in the center of the bottom surface of the pulley mounting block 3, and the fixing plate 302 is fixedly arranged on the left surface of the pulley mounting block 3. The positioning bolt 303 is penetrated in the center of the upper surface of the fixing plate 302, and the sleeve spring 304 is fixedly arranged between the positioning bolt 303 and the upper surface of the fixing plate 302.

[0030] In this embodiment, the embedding groove 2021 is in a “convex” shape, and the embedding block 301 matches the embedding groove 2021 . The embedding block 301 can slide in the embedding groove 2021 to ensure the stability of the embedding block 301 embedded in the embedding groove 2021 .

[0031] In this embodiment, the positioning bolt 303 is matched with the positioning hole 2022, and when the embedding block 301 can slide in the embedding groove 2021, the positioning bolt 303 can be embedded in the positioning hole 2022, so as to facilitate the positioning of the pulley mounting block 3 on the slider 202.

[0032] By providing the pulley mounting block 3, when the pulley assembly 4 needs to be replaced, the positioning bolt 303 is pulled upwards so that the positioning bolt 303 comes out of the positioning hole 2022, and then the pulley mounting block 3 is slid left and right along the embedding groove 2021, so that the embedding block 301 at the bottom of the pulley mounting block 3 slides out of the embedding groove 2021, making it convenient to take out the pulley mounting block 3 and replace the pulley assembly 4.

[0033] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model. These should also be regarded as the protection scope of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. An elevator pulley that is easy to maintain, characterized in that: include: An elevator car (1), a mounting rod (2), a pulley mounting block (3) and a pulley block (4), wherein a mounting rod (2) is fixedly arranged at the center of the upper surface of the elevator car (1), pulley mounting blocks (3) are installed at both left and right ends of the mounting rod (2), and a pulley block (4) is fixedly installed above the pulley mounting block (3); The mounting rod (2) comprises a slide groove (201), a slider (202), a rack (203), a rotating shaft (204), a gear (205) and a pawl (206). The upper surface of the mounting rod (2) is provided with a slide groove (201). Slide blocks (202) are slidably arranged on both sides of the slide groove (201). The slider (202) and the side of the slider (202) facing the center of the slide groove (201) are fixedly provided with a rack (203). A rotating shaft (204) is rotatably arranged at the inner center of the slide groove (201). A gear (205) is fixedly arranged on the rotating shaft (204). A pawl (206) is rotatably arranged at the inner center of the slide groove (201). The pulley mounting block (3) is mounted on the slider (202). Track grooves (2011) are provided on both sides of the bottom of the slide groove (201), and the rack (203) slides in the track groove (2011).

2. The elevator pulley for easy maintenance according to claim 1, characterized in that: The racks (203) on the two sliders (202) are respectively located on both sides of the gear (205), and the gear (205) and the two racks (203) are meshed with each other.

3. The elevator pulley for easy maintenance according to claim 2, characterized in that: The pawl (206) is detachably meshed with the gear (205).

4. The elevator pulley for easy maintenance according to claim 1, characterized in that: The slider (202) comprises an embedding groove (2021) and a positioning hole (2022); an embedding groove (2021) is provided at the center of the upper surface of the slider (202); a positioning hole (2022) is provided at the upper surface of the slider (202); the pulley mounting block (3) comprises an embedding block (301), a fixing plate (302), a positioning bolt (303) and a sleeve spring (304); an embedding block (301) is fixedly provided at the center of the bottom surface of the pulley mounting block (3); a fixing plate (302) is fixedly provided at the left side surface of the pulley mounting block (3); a positioning bolt (303) is provided through the center of the upper surface of the fixing plate (302); and a sleeve spring (304) is fixedly provided between the positioning bolt (303) and the upper surface of the fixing plate (302).

5. The elevator pulley for easy maintenance according to claim 4, characterized in that: The embedding groove (2021) is in the shape of a "convex" character, and the embedding block (301) matches the embedding groove (2021), and the embedding block (301) can slide in the embedding groove (2021).

6. The elevator pulley for easy maintenance according to claim 5, characterized in that: The positioning bolt (303) matches the positioning hole (2022), and when the embedding block (301) can slide in the embedding groove (2021), the positioning bolt (303) can be embedded in the positioning hole (2022).

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