Elevator car bottom structure

Abstract

The utility model relates to the technical field of elevator manufacturing, in particular to an elevator car bottom structure which comprises a front car bottom plate, a rear car bottom plate, a rear surrounding plate, a side surrounding plate, car bottom reinforcing ribs, a bracket, a damping block, a sill bracket, a toe guard, a toe guard inclined strut, correction rubber, a balance block, a buffer plate and a toe guard support. The front car bottom plate and the rear car bottom plate are directly formed by punching galvanized steel sheets and connected with the rear coaming and the side coaming in a riveting mode, the car bottom reinforcing ribs are fixed below the front car bottom plate and the rear car bottom plate, and the brackets are arranged at the four corners of the car bottom and connected with the front car bottom plate, the rear car bottom plate and the side coaming through bolts. The damping block is installed on the bracket, and the sill bracket is fixed to the inner side of the side coaming. According to the elevator car platform structure, the production process is simplified, the labor cost is reduced, the manufacturing time is shortened, the flexibility and the response speed of a production line are improved, and meanwhile the structural strength and durability are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of elevator manufacturing technology, specifically to an elevator car bottom structure. Background Technology

[0002] In modern architecture, elevators are playing an increasingly important role as vertical transportation tools. With the acceleration of urbanization and the continuous increase in the number of high-rise buildings, higher demands are being placed on the safety, comfort, and efficiency of elevators. The elevator car, as a crucial component of the elevator, bears the key function of supporting the weight of passengers and goods, and directly affects the overall performance of the elevator.

[0003] Traditional car chassis manufacturing methods require welding all components together before surface treatment steps such as powder coating. This not only increases the production cycle but also raises labor costs. Furthermore, since each car chassis needs to undergo similar complex processes, the production line has low flexibility and is difficult to respond quickly to market changes or urgent orders. Especially in mass production, this production model may become a bottleneck, limiting the company's production capacity and development speed. Utility Model Content

[0004] The purpose of this utility model is to provide an elevator car bottom structure to solve the problems of complex production process, long time consumption, high labor cost and low production line flexibility in the current elevator car bottom manufacturing process mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elevator car bottom structure, including a front car bottom plate, a rear car bottom plate, a rear panel, a side panel, a car bottom reinforcing rib, a bracket, a shock absorber, a sill bracket, a foot guard, a foot guard diagonal brace, a correction rubber, a balance block, a buffer plate, and a foot guard bracket. The front and rear car bottom plates are directly formed by punching holes in galvanized steel plates and are connected to the rear panel and side panel by riveting. The car bottom reinforcing rib is fixed under the front and rear car bottom plates. The bracket is located at the four corners of the car bottom and is connected to the front car bottom plate, the rear car bottom plate, and the side panel by bolts. The shock absorber is installed on the bracket, and the sill bracket is fixed to the inside of the side panel.

[0006] Preferably, both the front and rear car floor panels are provided with multiple grooves and pre-drilled holes on the edges. The car floor reinforcing ribs are U-shaped structures and are fixed to the bottom of the front and rear car floor panels by multiple rivets.

[0007] Preferably, the bracket consists of two vertical support members and a horizontal connector, wherein the horizontal connector has multiple pre-drilled holes, and the shock-absorbing block is embedded in the reserved hole on the bracket, and is rectangular in shape with positioning protrusions.

[0008] Preferably, the sill bracket includes an L-shaped bracket and several fixing screws. One side of the L-shaped bracket is close to the inner side of the side panel. The foot guard is fixed to the bottom edge of the car floor structure by the foot guard bracket. The foot guard bracket has multiple sets of bolt holes.

[0009] Preferably, one end of the foot protection plate diagonal brace is connected to the foot protection plate by bolts, and the other end is fixed to the car bottom reinforcing rib by welding. The correction rubber is placed on the lower part of the foot protection plate and fixed by buckles.

[0010] Preferably, the balance block is located at the center of the car floor and is fixed between the front and rear car floor plates by bolts, and the buffer plate is located at the center of the bottom of the car floor and is fixed next to the balance block by adhesive.

[0011] Compared with existing technologies, the advantages of this utility model are: the elevator car bottom structure simplifies the production process, reduces labor costs and manufacturing time, and improves the flexibility and response speed of the production line, while ensuring structural strength and durability. The elevator car bottom structure, through the design of directly punching galvanized steel sheets for the front and rear car bottom plates, avoids complex welding processes. Combined with the efficient connection method of brackets and shock absorbers, it not only improves assembly efficiency but also enhances passenger comfort. Meanwhile, the stable connection between the sill bracket and the side panels ensures the reliability of the car door operation. The overall design allows the car bottom structure to achieve lightweight while maintaining high strength, making it ideal for large-scale production and urgent delivery needs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an elevator car bottom according to the present invention;

[0013] Figure 2 This is a top view schematic diagram of an elevator car bottom structure according to the present invention;

[0014] Figure 3 This is a front view schematic diagram of an elevator car bottom structure according to the present invention.

[0015] In the diagram: 1. Front car floor; 2. Rear car floor; 3. Rear panel; 4. Side panel; 5. Car floor reinforcing rib; 6. Bracket; 7. Shock absorber; 8. Sill bracket; 9. Foot guard; 10. Foot guard diagonal brace; 11. Correction rubber; 12. Balance block; 13. Buffer plate; 14. Foot guard bracket. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3This utility model provides a technical solution: an elevator car bottom structure, including a front car bottom plate 1, a rear car bottom plate 2, a rear enclosure plate 3, a side enclosure plate 4, a car bottom reinforcing rib 5, a bracket 6, a shock absorber 7, a sill bracket 8, a foot guard 9, a foot guard diagonal brace 10, a correction rubber 11, a balance block 12, a buffer plate 13, and a foot guard bracket 14. The front car bottom plate 1 and the rear car bottom plate 2 are directly formed by punching holes in galvanized steel plates and are connected to the rear enclosure plate 3 and the side enclosure plate 4 by riveting. The car bottom reinforcing rib 5 is fixed under the front car bottom plate 1 and the rear car bottom plate 2. The bracket 6 is located at the four corners of the car bottom and is connected to the front car bottom plate 1, the rear car bottom plate 2, and the side enclosure plate 4 by bolts. The shock absorber 7 is installed on the bracket 6, and the sill bracket 8 is fixed to the inner side of the side enclosure plate 4. This structure is the front car bottom... The front and rear car floor panels 1 and 2 are directly formed by punching holes in galvanized steel sheets, ensuring the flatness and rigidity of the car floor. They are also securely connected to the rear panel 3 and side panel 4 via riveting, avoiding the complexity and time costs of traditional welding processes. The car floor reinforcing ribs 5 enhance the overall structural strength, ensuring stability even under heavy loads. The brackets 6 are tightly connected to the front car floor panel 1, rear car floor panel 2, and side panel 4 via bolts, and effectively absorb vibrations through shock absorbers 7, improving ride comfort. Furthermore, the sill brackets 8 are securely installed inside the side panel 4, providing additional support and ensuring the normal operation of the car door. This structure simplifies the production process, enabling rapid assembly and delivery without the need for complex welding and powder coating steps, significantly reducing labor costs. This design reduces labor costs and manufacturing time, improves production line flexibility and response speed, and solves the problems of long production cycles, high labor costs, and low production line flexibility in existing technologies. It is particularly suitable for mass production and urgent delivery needs. Both the front car floor 1 and the rear car floor 2 have multiple grooves and pre-drilled holes on the edges. The car floor reinforcing rib 5 has a U-shaped structure and is fixed to the bottom of the front car floor 1 and the rear car floor 2 by multiple rivets. This structure not only reduces the overall weight of the front car floor 1 and the rear car floor 2, but also increases rigidity, ensuring that the car floor is not easily deformed when bearing loads. The pre-drilled holes on the edges facilitate quick and secure riveting connections with other components such as the rear panel 3 and the side panels 4, improving assembly efficiency. The car floor reinforcing rib 5 is fixed by multiple rivets. Beneath the front car floor 1 and rear car floor 2, this structure enhances the overall strength and stability of the car floor, enabling the car to effectively resist external impacts and vibrations during operation. The bracket 6 consists of two vertical supports and one horizontal connector. The horizontal connector has multiple pre-drilled holes, and the shock-absorbing block 7, rectangular in shape and with positioning protrusions, is embedded in the pre-drilled holes on the bracket 6. This structure provides a stable support base for the two vertical supports of the bracket 6, ensuring the car floor structure can firmly bear the weight of passengers and cargo. The horizontal connector is bolted to the front car floor 1, rear car floor 2, and side panels 4 through multiple pre-drilled holes. This design not only simplifies the installation process but also allows for flexible adjustment of the position according to actual needs, improving assembly efficiency.The shock absorber 7 is embedded in the pre-drilled hole of the bracket 6. Its rectangular design and positioning protrusions ensure precise and secure installation, effectively absorbing and mitigating vibrations generated during operation, thus improving ride comfort. Overall, the combined design of the bracket 6 and the shock absorber 7 enhances the overall stability and durability of the car floor structure, reducing the risk of loosening or damage caused by long-term vibration. The sill bracket 8 includes an L-shaped support and several fixing screws. One side of the L-shaped support is tightly attached to the inner side of the side panel 4. The foot guard 9 is fixed to the bottom edge of the car floor structure via the foot guard bracket 14, which has multiple sets of bolt holes. This L-shaped support structure, through its shape advantage, fits tightly to the inner side of the side panel 4, providing stable support and ensuring a tight connection between the sill bracket 8 and the side panel 4, preventing... To prevent shaking or displacement during operation, the fixing screws further reinforce this connection, improving the overall structural stability and safety. The foot guard 9 is fixed to the bottom edge of the car floor structure via the foot guard bracket 14. Multiple bolt holes on the foot guard bracket 14 allow for flexible position adjustment according to actual installation needs, ensuring the foot guard 9 is accurately and securely installed in the predetermined position, protecting the car floor and guiding passengers in and out of the elevator. One end of the foot guard diagonal brace 10 is connected to the foot guard 9 via bolts, and the other end is welded to the car floor reinforcing rib 5. The correction rubber 11 is placed under the foot guard 9 and secured with clips. This structure, with the foot guard diagonal brace 10 securely connected to one side of the foot guard 9 via bolts, provides additional support and enhances... The stability and deformation resistance of the foot guard plate 9 are ensured, guaranteeing that it will not bend or shift due to external pressure during long-term use. The other end of the foot guard plate diagonal brace 10 is fixed to the car bottom reinforcing rib 5 by welding. This connection method not only increases the overall rigidity of the structure but also further enhances the load-bearing capacity and durability of the car bottom structure, enabling it to withstand greater external impacts. The alignment rubber 11 is placed under the foot guard plate 9 and fixed with clips. It plays a role in buffering and shock absorption during elevator operation, reducing vibration and noise generated when the car contacts the ground, improving ride comfort. The design of the alignment rubber 11 also facilitates quick replacement and maintenance, reducing later maintenance costs and time consumption. The balance block 12 is located at the center of the car bottom, through... The buffer plate 13 is bolted between the front car floor plate 1 and the rear car floor plate 2. Located at the center of the bottom of the car floor, it is fixed to the counterweight 12 with adhesive. This structure ensures the stability of the car's center of gravity, effectively preventing tilting or instability during operation and improving the safety and smoothness of elevator operation. The buffer plate 13, located at the center of the bottom of the car floor and firmly fixed to the counterweight 12 with adhesive, provides additional cushioning during elevator operation, especially when the car contacts the ground or other buffer devices. It absorbs and disperses impact forces, reducing direct impact on the car floor structure and protecting internal components from damage.

[0018] Working principle: When using this elevator car bottom structure, the front car bottom plate 1 and the rear car bottom plate 2 are first formed directly by punching holes in galvanized steel plates and connected to the rear panel 3 and the side panel 4 by riveting. Next, the car bottom reinforcing ribs 5 are fixed to the bottom of the front car bottom plate 1 and the rear car bottom plate 2 by multiple rivets. Then, brackets 6 are located at the four corners of the car bottom and connected to the front car bottom plate 1, the rear car bottom plate 2, and the side panel 4 by bolts. Shock absorbers 7 are embedded in the pre-drilled holes on the brackets 6. The sill bracket 8 includes an L-shaped support and is tightly attached to the inner side of the side panel 4 by several fixing screws. The foot guard 9 is fixed to the bottom edge of the car bottom structure by the foot guard bracket 14. One end of the footplate brace 10 is connected to the foot guard plate 9 by bolts, and the other end is fixed to the car bottom reinforcing rib 5 by welding. The correction rubber 11 is placed under the foot guard plate 9 and fixed by buckles. The balance block 12 is located at the center of the car bottom and is fixed between the front car bottom plate 1 and the rear car bottom plate 2 by bolts to ensure the stability of the car's center of gravity. Finally, the buffer plate 13 is located at the center of the bottom of the car bottom and is fixed next to the balance block 12 by adhesive to provide additional buffer protection for the car. Through these steps, the entire elevator car bottom structure can be quickly assembled without going through complicated welding and powder coating steps, which significantly reduces labor costs and production time, thus completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An elevator car bottom structure, comprising a front car bottom plate (1), a rear car bottom plate (2), a rear panel (3), side panels (4), car bottom reinforcing ribs (5), a bracket (6), a shock absorber (7), a sill bracket (8), a foot guard (9), a foot guard diagonal brace (10), a correction rubber (11), a balance block (12), a buffer plate (13), and a foot guard bracket (14), characterized in that: The front car floor (1) and the rear car floor (2) are formed directly by punching holes in galvanized steel plates and are connected to the rear panel (3) and the side panel (4) by riveting. The car floor reinforcing rib (5) is fixed under the front car floor (1) and the rear car floor (2). The bracket (6) is located at the four corners of the car floor and is connected to the front car floor (1), the rear car floor (2) and the side panel (4) by bolts. The shock absorber (7) is installed on the bracket (6). The sill bracket (8) is fixed on the inside of the side panel (4).

2. An elevator car floor structure as defined in claim 1, characterized in that: The front car floor (1) and the rear car floor (2) are provided with multiple grooves and pre-drilled holes on the edges. The car floor reinforcing rib (5) is a U-shaped structure and is fixed to the bottom of the front car floor (1) and the rear car floor (2) by multiple rivets.

3. The elevator car bottom structure according to claim 1, characterized in that: The bracket (6) consists of two vertical support members and a horizontal connector, wherein the horizontal connector has multiple pre-drilled holes, and the shock-absorbing block (7) is embedded in the reserved hole on the bracket (6), and is rectangular in shape with positioning protrusions.

4. An elevator car floor structure as defined in claim 1, wherein: The sill bracket (8) includes an L-shaped bracket and several fixing screws. One side of the L-shaped bracket is close to the inside of the side panel (4). The foot guard (9) is fixed to the bottom edge of the car bottom structure by the foot guard bracket (14). The foot guard bracket (14) has multiple sets of bolt holes.

5. An elevator car floor structure as defined in claim 1, wherein: One end of the foot protection plate diagonal brace (10) is connected to the foot protection plate (9) by bolts, and the other end is fixed to the car bottom reinforcing rib (5) by welding. The correction rubber (11) is placed on the lower part of the foot protection plate (9) and fixed by buckles.

6. An elevator car floor structure as defined in claim 1, wherein: The balance block (12) is located at the center of the car floor and is fixed between the front car floor plate (1) and the rear car floor plate (2) by bolts. The buffer plate (13) is located at the center of the bottom of the car floor and is fixed next to the balance block (12) by adhesive.

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