Car floor structure of an elevator car

Abstract

The utility model provides a car bottom structure of elevator car, including car bottom tray frame, the car bottom bottom plate of fixed installation above car bottom tray frame is arranged with numerous antiskid lines, at least three support steel beams are fixedly installed on car bottom tray frame, car bottom tray frame is fixedly connected with shock absorbing baffle through the collapse support plate, and the rubber seat arranged on the support steel beam slides and inserts into the guide cylinder fixedly installed on the shock absorbing baffle, the utility model discloses safety collapse support plate and shock absorbing baffle cooperate, and the damping buffer of combining rubber seat reduces vibration transmission, and car bottom tray frame and support steel beam form double -deck support, and the antiskid line of bottom plate enhances stability, still cooperates with bottom shock absorber, and the impact is coped with, prolongs the life of equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of elevator car bottom structure, and particularly relates to an elevator car bottom structure. Background Technology

[0002] In elevator car design, the car floor structure directly affects passenger comfort and safety, especially during elevator start-up, stopping, or sudden impacts, requiring effective cushioning of vibrations and impacts between the car and the bottom of the elevator shaft. However, existing elevator car floor structures generally adopt a single-layer flat design, connected to the car frame only by simple support components, lacking a professional vibration damping mechanism that works in conjunction with vibration dampers at the bottom of the elevator pit. When severe vibrations or a bottoming-out accident occur during elevator operation, the single-layer structure is insufficient to absorb impact energy, easily leading to car swaying, component damage, and even threatening passenger safety. Furthermore, the traditional anti-slip and support structure design of the car floor is rudimentary and cannot meet the high load and high stability requirements of modern elevators.

[0003] Therefore, it is essential to invent a car floor structure for elevators. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a car bottom structure for an elevator car, including a car bottom tray frame, a car bottom plate, anti-slip patterns, supporting steel beams, a collapsible support plate, a shock-absorbing impact plate, a guide cylinder, and a rubber seat. The car bottom plate, which is fixedly installed above the car bottom tray frame, is provided with a plurality of the aforementioned anti-slip patterns. At least three of the aforementioned supporting steel beams are fixedly installed on the car bottom tray frame. The car bottom tray frame is fixedly connected to the shock-absorbing impact plate through the collapsible support plate. The rubber seat provided on the supporting steel beam slides into the guide cylinder fixedly installed on the shock-absorbing impact plate.

[0005] Preferably, the car floor tray frame is a rectangular frame structure welded from four C-shaped steels, and the car floor plate fixedly installed above the car floor tray frame is a rectangular plate structure, the surface of which is formed by stamping to create the anti-slip textured protrusions.

[0006] Preferably, the supporting steel beams fixedly installed on the inner side of the car bottom tray frame are H-shaped steel structures, and the supporting steel beams are located below the car bottom plate. Several rubber seats are arranged along their own axis below the two outermost supporting steel beams.

[0007] Preferably, the rubber seat has a circular cross-section, with the upper end of each rubber seat fixedly installed on the supporting steel beam, and its lower end slidingly extending into the guide tube fixedly installed on the shock-absorbing impact plate.

[0008] Preferably, the shock-absorbing impact plate is an I-shaped steel plate structure, with several guide cylinders corresponding to the rubber seat arranged on the inner sides of both ends.

[0009] Preferably, the four corners of the shock-absorbing impact plate are fixedly connected to the car bottom tray frame through the collapse support plate, and each of the collapse support plates is provided with a number of collapse holes, which are elliptical through holes.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This utility model's safety crumple support plate (with elliptical crumple holes) works in conjunction with the shock-absorbing impact plate to form an elastic buffer structure. When the car is impacted, the crumple holes deform and absorb energy. Combined with the damping buffering effect of the rubber seat (slidingly embedded in the guide cylinder), it can significantly reduce vibration transmission, reduce rigid collisions between the car and the bottom of the hoistway, and significantly improve passenger safety and comfort.

[0012] This utility model car floor tray frame adopts a C-shaped steel welded frame, which is matched with the supporting steel beam with an H-shaped steel structure to form a stable double-layer support system and improve the load-bearing capacity; the surface of the car floor plate is stamped with anti-slip texture protrusions to enhance the stability of the passenger standing and avoid the risk of slipping.

[0013] This utility model, in conjunction with the bottom shock absorber, adapts to the guide cylinders and rubber seats at both ends of the shock-absorbing impact plate, allowing for precise connection with the shock absorber at the bottom of the elevator pit, forming an upper and lower linkage shock absorption system. This effectively copes with dynamic loads and sudden impacts during elevator operation, extending the service life of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the bottom structure of this utility model.

[0016] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0017] In the picture:

[0018] 1. Car floor tray frame; 2. Car floor plate; 3. Anti-slip texture; 4. Support steel beam; 5. Collapse support plate; 6. Shock-absorbing impact plate; 7. Guide cylinder; 8. Rubber seat. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0021] As attached Figure 1 To be continued Figure 3 As shown:

[0022] This utility model provides a car bottom structure for an elevator car, including a car bottom tray frame 1, a car bottom plate 2, anti-slip patterns 3, supporting steel beams 4, a collapsible support plate 5, a shock-absorbing impact plate 6, a guide cylinder 7, and a rubber seat 8. The car bottom plate 2, which is fixedly installed above the car bottom tray frame 1, is provided with a plurality of anti-slip patterns 3. At least three supporting steel beams 4 are fixedly installed on the car bottom tray frame 1. The car bottom tray frame 1 is fixedly connected to the shock-absorbing impact plate 6 through the collapsible support plate 5. The rubber seat 8 provided on the supporting steel beam 4 slides into the guide cylinder 7 fixedly installed on the shock-absorbing impact plate 6.

[0023] Furthermore, the car bottom pallet frame 1 is constructed by welding four Q235 C-shaped steel beams together using a full welding process to form a rectangular frame structure. The four C-shaped steel beams serve as the four sides of the rectangular frame, and adjacent C-shaped steel beams are fixed together by 90° right-angle welding to ensure the structural strength and stability of the frame. Above the car bottom pallet frame 1, the car bottom plate 2 is evenly bolted and fixedly installed. The car bottom plate 2 is a rectangular bottom plate structure made of Q235 steel, and its surface is stamped to form a raised structure with anti-slip texture 3. The anti-slip texture 3 is distributed in a diamond-shaped grid pattern, which effectively increases the friction between the bottom of the car and passengers or cargo, preventing slippage.

[0024] Furthermore, a support steel beam 4 is fixedly installed on the inner side of the car floor tray frame 1 by welding. The support steel beam 4 is an H-shaped steel structure made of Q345 material. The support steel beam 4 is evenly distributed laterally under the car floor plate 2, with at least three beams. The middle beam is located on the center line of the car floor plate 2, and the two outermost beams are 50-100mm away from the two sides of the car floor tray frame 1. Rubber seats 8 are equidistantly arranged below the two outermost support steel beams 4 along their own axis. The rubber seats 8 are made of natural rubber, which has good elasticity and shock absorption performance. Their upper ends are fixedly connected to the bottom surface of the support steel beams 4 through a vulcanization process.

[0025] Furthermore, the rubber seat 8 has a circular cross-section with a diameter of 80mm and a height of 100mm. The upper end of each rubber seat 8 is fixedly mounted on the supporting steel beam 4 via a vulcanization process, and the lower end is machined with a cylindrical sliding part with a diameter of 70mm. A guide cylinder 7 is fixedly mounted on the shock-absorbing impact plate 6. The guide cylinder 7 is a cylindrical structure made of Q235 material, with a smooth inner wall, an inner diameter of 72mm, and a depth of 120mm. The lower sliding part of the rubber seat 8 extends into the guide cylinder 7, forming a sliding fit with a clearance of 2mm, ensuring that the rubber seat 8 can freely expand and contract in the vertical direction while restricting horizontal displacement.

[0026] Furthermore, the shock-absorbing impact plate 6 adopts an I-beam steel plate structure made of Q345 material. On the inner sides of the two parallel ends of the shock-absorbing impact plate 6, guide cylinders 7 corresponding to the rubber seats 8 are evenly distributed along the length direction. The guide cylinders 7 are fixed to the shock-absorbing impact plate 6 by welding. Each guide cylinder 7 corresponds one-to-one with the rubber seat 8 below the outermost supporting steel beam 4, ensuring that the lower end of the rubber seat 8 can accurately extend into the guide cylinder 7.

[0027] Furthermore, the four corners of the shock-absorbing impact plate 6 are fixedly connected to the car bottom tray frame 1 via collapsible support plates 5, which are made of Q235 steel plates. Each collapsible support plate 5 has multiple elliptical collapsible holes arranged through it, with the major axis of the holes aligned with the direction of force on the car. One end of the collapsible support plate 5 is fixedly connected to the corner of the shock-absorbing impact plate 6 using M16 bolts, and the other end is fixed to the corner of the car bottom tray frame 1 by welding. When the car is impacted, the collapsible holes on the collapsible support plate 5 undergo plastic deformation, absorbing impact energy and providing cushioning protection.

[0028] The working principle is as follows: First, the anti-slip texture 3 on the surface of the car floor plate 2 is formed into a diamond-shaped grid-like raised structure through stamping, increasing the contact friction with passengers or cargo and preventing slippage caused by starting, stopping, or shaking during car operation, thus ensuring passenger safety. Second, when the car is subjected to vertical vibration or impact, the rubber seat 8 under the supporting steel beam 4 plays an elastic buffering role: the upper end of the rubber seat 8 is fixed to the supporting steel beam 4, and the lower end slides into the guide cylinder 7 of the shock-absorbing impact plate 6, absorbing vibration energy through its own elastic deformation. At the same time, the guide cylinder 7 restricts the horizontal displacement of the rubber seat 8, ensuring that the buffering process proceeds stably in the vertical direction. Finally, if a severe impact occurs, the collapse support plates 5 at the four corners of the shock-absorbing impact plate 6 begin to work: the elliptical collapse holes on their surface undergo plastic deformation along the direction of force on the car, further absorbing impact energy through structural collapse, forming a double buffer with the elastic damping of the rubber seat 8, preventing rigid impact from being transmitted to the car floor tray frame 1 and the car body, and improving the overall impact resistance of the structure.

[0029] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A car floor structure for an elevator car, characterized in that, The car includes a car bottom tray frame (1), a car bottom plate (2), anti-slip patterns (3), supporting steel beams (4), a collapsible support plate (5), a shock-absorbing impact plate (6), a guide cylinder (7), and a rubber seat (8). The car bottom plate (2) fixedly installed above the car bottom tray frame (1) is provided with numerous anti-slip patterns (3). At least three supporting steel beams (4) are fixedly installed on the car bottom tray frame (1). The car bottom tray frame (1) is fixedly connected to the shock-absorbing impact plate (6) through the collapsible support plate (5). The rubber seat (8) provided on the supporting steel beams (4) slides into the guide cylinder (7) fixedly installed on the shock-absorbing impact plate (6).

2. The elevator car floor structure as described in claim 1, characterized in that: The car bottom tray frame (1) is a rectangular frame structure welded from four C-shaped steels. The car bottom plate (2) fixedly installed above the car bottom tray frame (1) is a rectangular bottom plate structure, and the surface of the plate is formed by stamping to create the anti-slip texture (3) protrusion structure.

3. The elevator car floor structure as described in claim 2, characterized in that: The supporting steel beam (4) fixedly installed on the inner side of the car bottom tray frame (1) is an H-shaped steel structure. The supporting steel beam (4) is located below the car bottom plate (2). Several rubber seats (8) are arranged along their own axis below the two outermost supporting steel beams (4).

4. The elevator car floor structure as described in claim 3, characterized in that: The rubber seat (8) has a circular cross section. The upper end of each rubber seat (8) is fixedly installed on the supporting steel beam (4), and its lower end slides into the guide tube (7) fixedly installed on the shock-absorbing impact plate (6).

5. The elevator car floor structure as described in claim 4, characterized in that: The shock-absorbing impact plate (6) is an I-shaped steel plate structure, with several guide cylinders (7) corresponding to the rubber seat (8) arranged on the inner sides of both ends.

6. The elevator car floor structure as described in claim 5, characterized in that: The four corners of the shock-absorbing impact plate (6) are fixedly connected to the car bottom tray frame (1) through the collapse support plate (5). Each of the collapse support plates (5) is provided with a number of collapse holes, which are elliptical through holes.

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