Elevator ultra-thin car bottom structure with shock absorption function

Abstract

This utility model discloses an ultra-thin elevator car bottom structure with shock absorption function, relating to the field of elevator technology. It includes an elevator car body, with a car bottom mechanism at the bottom of the car body. The car bottom mechanism includes a shock absorption mechanism, which comprises three U-shaped connecting steel plates. Each of the three U-shaped connecting steel plates has a portal-shaped connecting steel plate snapped onto its top, and L-shaped steel plates are fixedly welded to both ends of each of the three U-shaped connecting steel plates. This utility model integrates the shock absorption function with the load-bearing structure by rationally arranging the rubber cylindrical shock absorption components within the internal area of ​​the car bottom structure. The structure is compact, rigid, and strong, ensuring load-bearing capacity while reducing the thickness of the bottom plate. This achieves an ultra-thin car bottom structure, significantly reducing the requirements for pit space, making it particularly suitable for home or retrofitted elevators with limited pit space.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an ultra-thin elevator car bottom structure with shock absorption function. Background Technology

[0002] In traditional traction elevators, the car's bottom structure typically employs a frame structure welded from steel plates and structural steel sections to ensure sufficient load-bearing strength and rigidity. However, this type of bottom structure is generally quite thick, usually requiring a deep elevator pit. In space-constrained installation scenarios, such as home elevators, renovations of old buildings, and elevator retrofitting projects, this can be limited by building structural conditions, affecting the layout and installation efficiency of the elevator system. With the trend towards diversified and compact elevator installation applications, the demand for elevator structures with "low pits and small shafts" is gradually increasing, especially in residential renovations and machine-room-less elevator scenarios, which place "lightweight and thin" design requirements on the car's bottom structure. The following problems exist with existing technologies:

[0003] Elevators are subject to various disturbances during operation, such as uneven guide rails, braking impacts, and cable swaying. If the bottom structure of the elevator car is excessively thinned, it can easily lead to insufficient strength or vibration problems, affecting ride comfort and operational safety. Therefore, how to optimize the design of the bottom structure of the elevator car to achieve its ultra-thinness while ensuring the structural strength and ride comfort is a key technical problem that urgently needs to be solved in the elevator manufacturing industry. Utility Model Content

[0004] This invention provides an ultra-thin elevator car bottom structure with shock absorption function to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An ultra-thin elevator car bottom structure with shock absorption function includes an elevator car body. A car bottom mechanism is provided at the bottom of the elevator car body. The car bottom mechanism includes a shock absorption mechanism, which comprises three U-shaped connecting steel plates. A portal-shaped connecting steel plate is snapped onto the top of each of the three U-shaped connecting steel plates. L-shaped steel plates are fixedly welded to the left and right ends of each of the three U-shaped connecting steel plates. An L-shaped base plate is fixedly installed on the side of each of the two L-shaped steel plates away from the U-shaped connecting steel plates at their vertical positions. L-shaped top plates are fixedly installed on the left and right ends of each of the three portal-shaped connecting steel plates. The horizontal positions of the two L-shaped top plates are respectively located above the horizontal positions of the two L-shaped base plates. Three rubber cylindrical blocks are respectively provided between the horizontal positions of the two L-shaped base plates and the horizontal positions of the two L-shaped top plates.

[0007] A further improvement of this utility model is that a protective top plate is provided on the top of the shock absorption mechanism, and a car floor plate is fixedly installed on the top of the protective top plate.

[0008] A further improvement of this utility model is that: the L-shaped top plate has several vertically penetrating positioning holes 1 at its horizontal position, the L-shaped base plate has several vertically penetrating positioning holes 2 at its horizontal position, and the rubber cylindrical block has a positioning rod inserted through it along its central axis. The upper end of the positioning rod is fixedly connected to the corresponding positioning hole 1, and the lower end is inserted into the corresponding positioning hole 2.

[0009] A further improvement of this utility model is that: two vertically penetrating bolt holes are respectively opened at the horizontal position of the two L-shaped base plates on the left and right sides, and bolts are provided in the inner circle of the bolt holes, with the top of the bolts fixedly connected to the inner circle of the corresponding positioning hole one.

[0010] A further improvement of this utility model is that a limiting nut is installed on the outer wall thread of the bolt, and the limiting nut is located above the horizontal position of the L-shaped base plate.

[0011] A further improvement of this utility model is that: the horizontal part of the L-shaped top plate is located above the horizontal part of the L-shaped steel plate, and there is a gap between the horizontal part of the L-shaped top plate and the horizontal part of the L-shaped steel plate; the vertical part of the L-shaped top plate is located on the side of the vertical part of the L-shaped steel plate close to the U-shaped connecting steel plate, and there is a gap between the vertical part of the L-shaped top plate and the vertical part of the L-shaped steel plate.

[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0013] This utility model provides an ultra-thin elevator car bottom structure with shock absorption function. By rationally arranging the shock absorption component rubber cylindrical blocks in the internal area of ​​the car bottom structure, the shock absorption function and the load-bearing structure are integrated. The structure is compact, rigid, and strong. While reducing the thickness of the bottom plate, the load-bearing capacity is guaranteed, and the ultra-thin car bottom structure is achieved, which significantly reduces the requirements for pit space. It is particularly suitable for home or retrofit elevator scenarios with limited pit space.

[0014] This utility model provides an ultra-thin elevator car bottom structure with shock absorption function. Through the design of bolts, limit nuts and gaps between the L-shaped top plate and the L-shaped steel plate, the structure can provide multi-directional limit protection for the large-range displacement of the car bottom plate in the front-back, left-right and up-down directions, thereby improving the operational safety of the ultra-thin car bottom structure. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the car bottom mechanism of this utility model.

[0017] Figure 3 This is a schematic diagram of the shock absorption mechanism of the present invention.

[0018] Figure 4 This is a schematic diagram of the U-shaped connecting steel plate and the portal-shaped connecting steel plate of this utility model.

[0019] Figure 5 This is a schematic diagram of the bolts in the structure of this utility model;

[0020] Figure 6 This utility model Figure 5 Enlarged diagram of point A in the middle

[0021] Figure 7 This is a schematic diagram showing the positional relationship between the L-shaped steel plate and the L-shaped top plate in the structure of this utility model.

[0022] In the diagram: 1. Elevator car body; 2. Car bottom mechanism; 21. Shock absorption mechanism; 211. U-shaped connecting steel plate; 212. Portal-shaped connecting steel plate; 213. L-shaped steel plate; 214. L-shaped base plate; 2141. Bolt hole; 2142. Bolt; 2143. Limit nut; 215. Rubber cylindrical block; 216. L-shaped top plate; 217. Positioning rod; 218. Positioning hole one; 219. Positioning hole two; 22. Protective top plate; 23. Car bottom plate. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand

[0024] Understood. The present invention will now be further described in conjunction with specific implementation methods.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, this utility model provides an ultra-thin elevator car bottom structure with shock absorption function, including an elevator car body 1, a car bottom mechanism 2 at the bottom of the elevator car body 1, a shock absorption mechanism 21, a shock absorption mechanism 21 including three U-shaped connecting steel plates 211, a portal-shaped connecting steel plate 212 respectively snapped onto the top of each of the three U-shaped connecting steel plates 211, an L-shaped steel plate 213 respectively fixedly welded to the left and right ends of each of the three U-shaped connecting steel plates 211, an L-shaped base plate 214 fixedly installed on the side of each of the two L-shaped steel plates 213 away from the U-shaped connecting steel plates 211 at the vertical position, an L-shaped top plate 216 fixedly installed on the left and right ends of each of the three portal-shaped connecting steel plates 212, the horizontal position of each of the two L-shaped top plates 216 being above the horizontal position of each of the two L-shaped base plates 214, and three rubber cylindrical blocks 215 respectively provided between the horizontal positions of the two L-shaped base plates 214 and the horizontal positions of the two L-shaped top plates 216. The top of the shock absorption mechanism 21 is provided with a protective top plate 22, and the top of the protective top plate 22 is fixedly installed with a car bottom plate 23. Several vertically penetrating positioning holes 218 are opened at the horizontal position of the L-shaped top plate 216, and several vertically penetrating positioning holes 219 are opened at the horizontal position of the L-shaped base plate 214. A positioning rod 217 is provided through the rubber cylindrical block 215 along its central axis. The upper end of the positioning rod 217 is fixedly connected to the corresponding positioning hole 218, and the lower end is inserted into the corresponding positioning hole 219.

[0026] When in use, the protective top plate 22 and the car bottom plate 23 are installed on the overall shock absorption mechanism 21 for protection, ensuring that people riding the elevator car body 1 can stand on the car bottom plate 23. At the same time, the rubber cylindrical block 215 between the L-shaped top plate 216 and the L-shaped base plate 214 at the horizontal position can make the overall shock absorption mechanism 21 at the bottom of the elevator car body 1 ultra-thin. By reasonably arranging the rubber cylindrical block 215, the safety of operation and the comfort of riding are ensured. The rubber cylindrical block 215 can be limited by the positioning rod 217 passing through the positioning hole 1 218 and the positioning hole 219.

[0027] like Figure 5 , Figure 6 As shown, two vertically penetrating bolt holes 2141 are respectively opened at the horizontal position of the two L-shaped base plates 214. Bolts 2142 are provided on the inner ring of the bolt holes 2141. The top of the bolts 2142 is fixedly connected to the inner ring of the corresponding positioning hole 218. A limit nut 2143 is installed on the thread of the outer wall of the bolts 2142. The limit nut 2143 is located above the horizontal position of the L-shaped base plate 214.

[0028] Since the rubber cylindrical block 215 is a rubber part, when the rubber cylindrical block 215 is damaged or moves under certain fault conditions, the bolt 2142 on the inner ring of the bolt hole 2141 and the positioning hole 218 can limit it, thereby preventing the car from moving forward and causing danger. At the same time, there is a tolerance space between the limiting nut 2143 and the horizontal position of the L-shaped base plate 214. During assembly, the bolt 2142 is specially designed to have a certain gap. When the rubber cylindrical block 215 is damaged and the car moves downward, the limiting nut 2143 can limit the L-shaped base plate 214, preventing the car from moving downward continuously and ensuring safety.

[0029] like Figure 7 As shown, the horizontal part of the L-shaped top plate 216 is located above the horizontal part of the L-shaped steel plate 213, and there is a gap between the horizontal part of the L-shaped top plate 216 and the horizontal part of the L-shaped steel plate 213. The vertical part of the L-shaped top plate 216 is located on the side of the vertical part of the L-shaped steel plate 213 close to the U-shaped connecting steel plate 211, and there is a gap between the vertical part of the L-shaped top plate 216 and the vertical part of the L-shaped steel plate 213.

[0030] The gap between the horizontal part of the L-shaped top plate 216 and the horizontal part of the L-shaped steel plate 213 allows the L-shaped top plate 216 to limit the movement of the L-shaped steel plate 213. When the rubber cylindrical block 215 is damaged, the car moves downward, and the L-shaped top plate 216 limits the movement of the L-shaped steel plate 213, preventing the car from continuing to move downward due to the damage to the rubber cylindrical block 215, thus ensuring passenger safety. Similarly, the gap between the vertical part of the L-shaped top plate 216 and the vertical part of the L-shaped steel plate 213 also allows the L-shaped top plate 216 to limit the movement of the L-shaped steel plate 213, preventing the U-shaped connecting steel plate 211, the L-shaped steel plate 213 and the L-shaped base plate 214 from shifting left and right within a certain range, thus improving safety.

[0031] The working principle of this ultra-thin elevator car bottom structure with shock absorption function will be explained in detail below.

[0032] like Figure 1-7As shown, during use, the protective top plate 22 and the car bottom plate 23 are installed on the overall shock absorption mechanism 21 for protection, ensuring that passengers riding the elevator car body 1 can stand on the car bottom plate 23. Simultaneously, the rubber cylindrical block 215 between the L-shaped top plate 216 and the L-shaped base plate 214 at the horizontal position allows the overall shock absorption mechanism 21 at the bottom of the elevator car body 1 to be ultra-thin. By rationally arranging the rubber cylindrical blocks 215, operational safety and passenger comfort are ensured. The rubber cylindrical block 215 can be limited by the positioning rods 217 on the upper and lower sides passing through the positioning hole 1 218 and the positioning hole 219. Since the rubber cylindrical block 215 is a rubber component, when the rubber cylindrical block 215 is damaged or moves under certain fault conditions, the bolt 2142 in the bolt hole 2141 and the inner ring of the positioning hole 1 218 can limit it, thereby preventing the car from moving forward and causing danger. At the same time, the limiting nut 2143 is positioned horizontally with the L-shaped base plate 214. There is a tolerance space between them. During assembly, bolts 2142 are specifically designed with a certain gap. When the rubber cylindrical block 215 is damaged and the car moves downwards, the limiting nut 2143 can limit the L-shaped base plate 214, preventing the car from continuing to move downwards and ensuring safety. The gap between the horizontal L-shaped top plate 216 and the horizontal L-shaped steel plate 213 allows the L-shaped top plate 216 to limit the L-shaped steel plate 213. When the rubber cylindrical block 215 is damaged... As the car moves downward, the L-shaped top plate 216 limits the L-shaped steel plate 213, preventing the car from continuing to move downward due to damage to the rubber cylindrical block 215, thus ensuring passenger safety. Similarly, the gap between the vertical part of the L-shaped top plate 216 and the vertical part of the L-shaped steel plate 213 also allows the L-shaped top plate 216 to limit the L-shaped steel plate 213, preventing the U-shaped connecting steel plate 211, the L-shaped steel plate 213 and the L-shaped base plate 214 from shifting left and right within a certain range, thereby improving safety.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A thin elevator car bottom structure with shock absorption function, comprising an elevator car body (1), characterized in that: The bottom of the elevator car body (1) is provided with a car bottom mechanism (2), which includes a shock absorption mechanism (21). The shock absorption mechanism (21) includes three U-shaped connecting steel plates (211). The top of each of the three U-shaped connecting steel plates (211) is snapped with a portal-shaped connecting steel plate (212). The left and right ends of each of the three U-shaped connecting steel plates (211) are fixedly welded with L-shaped steel plates (213). The two L-shaped steel plates (213) are perpendicular to each other and far away from each other. One side of each of the U-shaped connecting steel plates (211) is fixedly installed with an L-shaped base plate (214), and the left and right ends of each of the three gate-shaped connecting steel plates (212) are fixedly installed with L-shaped top plates (216). The horizontal positions of the two L-shaped top plates (216) are respectively located above the horizontal positions of the two L-shaped base plates (214). Three rubber cylindrical blocks (215) are respectively set between the horizontal positions of the two L-shaped base plates (214) and the horizontal positions of the two L-shaped top plates (216).

2. The ultra-thin elevator car bottom structure with shock absorption function according to claim 1, characterized in that: The shock absorption mechanism (21) is provided with a protective top plate (22), and the car floor plate (23) is fixedly installed on the top of the protective top plate (22).

3. The ultra-thin elevator car bottom structure with shock absorption function according to claim 1, characterized in that: The L-shaped top plate (216) has several vertically penetrating positioning holes 1 (218) at its horizontal position, and the L-shaped base plate (214) has several vertically penetrating positioning holes 2 (219) at its horizontal position. The rubber cylindrical block (215) has a positioning rod (217) penetrating along its central axis. The upper end of the positioning rod (217) is fixedly connected to the corresponding positioning hole 1 (218), and the lower end is inserted into the corresponding positioning hole 2 (219).

4. The ultra-thin elevator car bottom structure with shock absorption function according to claim 3, characterized in that: Two through bolt holes (2141) are respectively opened at the horizontal position of the two L-shaped base plates (214) on the left and right sides, and bolts (2142) are provided in the inner ring of the bolt holes (2141). The top of the bolts (2142) is fixedly connected to the inner ring of the corresponding positioning hole (218).

5. The ultra-thin elevator car bottom structure with shock absorption function according to claim 4, characterized in that: The bolt (2142) has a limit nut (2143) threaded on its outer wall, and the limit nut (2143) is located above the horizontal position of the L-shaped base plate (214).

6. The ultra-thin elevator car bottom structure with shock absorption function according to claim 1, characterized in that: The horizontal part of the L-shaped top plate (216) is located above the horizontal part of the L-shaped steel plate (213), and there is a gap between the horizontal part of the L-shaped top plate (216) and the horizontal part of the L-shaped steel plate (213). The vertical part of the L-shaped top plate (216) is located on the side of the vertical part of the L-shaped steel plate (213) close to the U-shaped connecting steel plate (211), and there is a gap between the vertical part of the L-shaped top plate (216) and the vertical part of the L-shaped steel plate (213).

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