Composite car platform based on pressing rivet connection

Abstract

The utility model discloses a compound type car platform based on press riveting connection, which comprises a bottom frame composed of a front bottom plate and a rear bottom plate which are arranged side by side, the bottom of the bottom frame is connected with a first reinforcing rib in a press riveting mode, two ends of the bottom frame are provided with first bending portions, the top of the bottom frame is connected with a cover plate, and the cover plate is formed by arranging a front cover plate and a rear cover plate side by side. The front bottom plate is sleeved with the front cover plate, the front cover plate is connected with the top of the front bottom plate in a glued mode, the rear bottom plate is sleeved with the rear cover plate, the rear cover plate is connected with the top of the front bottom plate in a glued mode, second bent parts are arranged at the two ends of the cover plate, the inner sides of the second bent parts are attached to the first bent parts, and flanges are arranged on the outer sides of the second bent parts. A plurality of surrounding plates are distributed on the periphery of the top of the cover plate, the lower ends of the surrounding plates are fixed to the bottom frame and the cover plate, and first mounting holes used for being connected with a car wall are formed in the outer portions of the surrounding plates. The utility model has the characteristics of high surface levelness and good structural stability.

Description

Technical Field

[0001] The utility model relates to an elevator car platform, in particular to a composite car platform based on pressure riveting connection. Background Art

[0002] The traditional elevator car bottom is mainly composed of a base frame, a cover plate and reinforcing ribs. The base frame is a frame structure and is used to connect the elevator car wall. The cover plate is installed on the top of the base frame and provides support for the laying of the car floor, thereby ensuring the horizontality of the car floor after installation. The reinforcing ribs are installed on the inner side of the cover plate and are used to support and strengthen the cover plate and the base frame, thereby preventing the cover plate from being uneven after being stressed, and on the other hand, it is used to improve the overall structural strength of the elevator car bottom and reduce the possibility of deformation of the elevator car bottom under stress. The three are welded together to form an integrated structure. However, due to the low assembly efficiency and poor environmental protection effect of the traditional welding forming method, manufacturers need to improve the assembly method of the elevator car bottom to eliminate the welding process of the elevator car bottom during the assembly process in order to achieve the pursuit of elevator assembly efficiency and operational convenience.

[0003] In this regard, some manufacturers are currently trying to assemble the elevator car bottom by riveting instead of welding. Specifically, the cover plate, the base frame and the reinforcement are fixed to each other by riveting after assembly, and multiple cover plates and base frames are connected to each other by adding side panels, thereby overcoming the technical defect that the cover plate and the base frame cannot be formed at one time due to the width limitation of the plate. However, the defect of this assembly method is that, on the one hand, since the cover plate will form a depression on the surface after riveting, if the elevator car bottom is connected by riveting, the top installation surface will be uneven, reducing the support effect and comfort of the car bottom plate. On the other hand, due to the process limitations of riveting, manufacturers cannot use high-hardness profiles such as steel pipes as raw materials to make the base frame and reinforcement, but need to be directly bent and formed by the plate, resulting in that even if the cover plate and the base frame are connected and reinforced by reinforcement and side panels after assembly, their structural stability cannot reach the traditional welded elevator car bottom structure, and the connection stability to the elevator car wall is reduced.

[0004] Therefore, the existing press-riveted elevator car bottom has the problems of low surface levelness and poor structural stability. Utility Model Content

[0005] The utility model aims to provide a composite car platform based on riveting connection, which has the characteristics of high surface levelness and good structural stability.

[0006] The technical solution of the utility model: a composite car bottom based on riveting connection, including a base frame composed of a front bottom plate and a rear bottom plate arranged side by side, the bottom of the base frame is riveted with a first reinforcing rib, two ends of the base frame are provided with a first bending portion, the top of the base frame is connected with a cover plate, the cover plate is formed by a front cover plate and a rear cover plate arranged side by side, the front cover plate is sleeved on the outside of the front bottom plate and glued to the top of the front bottom plate, the rear cover plate is sleeved on the outside of the rear bottom plate and glued to the top of the front bottom plate, two ends of the cover plate are provided with a second bending portion, the inner side of the second bending portion is in contact with the first bending portion, the outer side of the second bending portion is provided with a rib, the rib, the second bending portion and the first bending portion are fixedly connected, a plurality of enclosures are distributed around the top of the cover plate, the lower end of the enclosure is fixed to the base frame and the cover plate, and the outside of the enclosure is provided with a first mounting hole for connecting to the car wall.

[0007] In the aforementioned composite car platform based on riveting connection, the retaining edge, the second bending portion and the first bending portion are connected in sequence via rivets or bolts, and the enclosure, the cover plate and the base frame are connected in sequence via bolts.

[0008] In the aforementioned composite car platform based on riveting connection, the cross-sectional shape of the first reinforcing rib is an I-shape, and one end of the retaining edge extends from the bottom of the first bending portion to the inner side of the first bending portion and interlocks with the first reinforcing rib.

[0009] In the aforementioned composite car platform based on riveting connection, the cross-sectional shape of the enclosure is C-shaped, and the bottom of the enclosure is provided with a second mounting hole for connecting the base frame and the cover plate, and the first mounting hole is arranged at the top of the enclosure.

[0010] In the aforementioned composite car platform based on riveting connection, a second reinforcing rib with a C-shaped cross-section is provided on the enclosure inside the first mounting hole and the second mounting hole, the second reinforcing rib and the enclosure are nested inside and outside and form a rectangular frame after connection, the bottom of the second reinforcing rib is connected to the enclosure, the cover plate and the base frame in sequence, and the top of the second reinforcing rib is connected to the enclosure and the car wall in sequence.

[0011] In the aforementioned composite car platform based on riveting connection, the first mounting hole and the second mounting hole are staggered with each other along the length direction of the enclosure, the second reinforcement rib has a long strip shape, the bottom of the second reinforcement rib is provided with a third mounting hole matching the second mounting hole, and the top of the second reinforcement rib is provided with a fourth mounting hole matching the first mounting hole.

[0012] In the aforementioned composite car platform based on riveting connection, the third mounting holes are located at the left and right ends of the second reinforcing rib, and the fourth mounting holes are located in the middle of the third reinforcing rib.

[0013] Compared with the prior art, the utility model has the following characteristics:

[0014] (1) The utility model cooperates with the structure of the base frame and the cover plate so that the base frame can be connected to the first reinforcing rib by riveting during assembly, and then the cover plate is installed on the outside of the base frame by gluing, thereby realizing the riveting connection between the base frame and the first reinforcing rib on the one hand, and eliminating the depression on the surface of the cover plate caused by riveting on the other hand, thereby improving the horizontality of the surface of the cover plate and the supporting effect on the car floor; through the connection structure cooperation of the first bending part, the second bending part and the retaining edge, on the one hand, the cover plate and the base frame can be connected to each other to prevent the cover plate from loosening and detaching, and on the other hand, the front bottom plate, the rear bottom plate, the front cover plate and the rear cover plate can be connected and limited during the assembly process, thereby facilitating the assembly and riveting operations of the manufacturer;

[0015] (2) Through the connection structure between the enclosure, the cover plate and the base frame, the enclosure can be used as the main connection component between the base frame and the cover plate after installation, that is, the front base plate and the rear base plate, as well as the front cover plate and the rear cover plate are connected and fixed to each other, ensuring the structural stability of the base frame and the cover plate; on the other hand, it can also be used to connect the car wall; on this basis, since the enclosure, the base frame and the cover plate adopt a bolt connection structure, the manufacturer can also use profiles with higher structural strength as raw materials to make the enclosure, thereby further improving the structural strength of the utility model after assembly and the connection stability to the car wall;

[0016] (3) Through the structural coordination between the enclosure and the second reinforcing rib, the second reinforcing rib can also play a role in reinforcing the enclosure at various connection locations after installation, further improving the structural strength and anti-deformation capability of the enclosure after installation; on this basis, by defining the connection structure between the enclosure and the second reinforcing rib, the bottom of the second reinforcing rib can be installed on the base frame together with the enclosure during installation, and the bottom of the second reinforcing rib is connected to the car wall together with the enclosure, thereby achieving a stable connection of the second reinforcing rib and facilitating assembly by operators;

[0017] Therefore, the utility model has the characteristics of high surface levelness and good structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of the utility model;

[0019] Figure 2 yes Figure 1 A-direction sectional view;

[0020] Figure 3 It is a bottom view of the utility model.

[0021] The markings in the accompanying drawings are: 1-front bottom plate, 2-rear bottom plate, 3-first reinforcement rib, 4-first bending portion, 5-front cover plate, 6-rear cover plate, 7-second bending portion, 8-edge, 9-enclosure, 10-first mounting hole, 11-second mounting hole, 12-second reinforcement rib, 13-third mounting hole, 14-fourth mounting hole. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0023] Embodiment. A large-scale drying and rod making device is composed of Figure 1 As shown, it includes a chassis composed of a front bottom plate 1 and a rear bottom plate 2 arranged side by side, the bottom of the chassis is riveted with a first reinforcing rib 3, both ends of the chassis are provided with a first bending portion 4, the top of the chassis is connected with a cover plate, the cover plate is formed by a front cover plate 5 and a rear cover plate 6 arranged side by side, the front cover plate 5 is sleeved on the outside of the front bottom plate 1 and is glued to the top of the front bottom plate 1, the rear cover plate 6 is sleeved on the outside of the rear bottom plate 2 and is glued to the top of the front bottom plate 1, both ends of the cover plate are provided with a second bending portion 7, the inner side of the second bending portion 7 is in contact with the first bending portion 4, the outer side of the second bending portion 7 is provided with an L-shaped cross-section retaining edge 8, the retaining edge 8, the second bending portion 7 and the first bending portion 4 are fixedly connected, a plurality of enclosures 9 are distributed around the top of the cover plate, the lower end of the enclosure 9 is fixed to the chassis and the cover plate, and the outside of the enclosure 9 is provided with a first mounting hole 10 for connecting to the car wall.

[0024] The retaining edge 8, the second bending portion 7 and the first bending portion 4 are connected in sequence via rivets or bolts, and the enclosure 9, the cover plate and the base frame are connected in sequence via bolts.

[0025] The cross-sectional shape of the first reinforcing rib 3 is an I-shape, and one end of the retaining edge 8 extends from the bottom of the first bending portion 4 to the inner side of the first bending portion 4 and is interlocked with the first reinforcing rib 3 .

[0026] The cross-sectional shape of the enclosure 9 is C-shaped. A second mounting hole 11 for connecting the base frame and the cover plate is provided at the bottom of the enclosure 9 , and the first mounting hole 10 is provided at the top of the enclosure 9 .

[0027] A second reinforcing rib 12 with a C-shaped cross-section is provided on the enclosure 9 inside the first mounting hole 10 and the second mounting hole 11. The second reinforcing rib 12 and the enclosure 9 are nested inside and outside and form a rectangular frame after being connected. The bottom of the second reinforcing rib 12 is connected to the enclosure 9, the cover plate and the base frame in sequence, and the top of the second reinforcing rib 12 is connected to the enclosure 9 and the car wall in sequence; the first mounting hole 10 and the second mounting hole 11 are both long holes in appearance.

[0028] The first mounting hole 10 and the second mounting hole 11 are staggered with each other along the length direction of the enclosure 9. The second reinforcing rib 12 is in the shape of a long strip. The bottom of the second reinforcing rib 12 is provided with a third mounting hole 13 that matches the second mounting hole 11, and the top of the second reinforcing rib 12 is provided with a fourth mounting hole 14 that matches the first mounting hole 10.

[0029] The third mounting hole 13 is located at the left and right ends of the second reinforcing rib 12, and the fourth mounting hole 14 is located in the middle of the third reinforcing rib. The third mounting hole 13 is a long hole, and the fourth mounting hole 14 is a U-shaped hole with one end connected to the outside.

[0030] Working principle of the utility model: When assembling the utility model, the operator can first connect the two ends of the front bottom plate 1 and the rear bottom plate 2 to each other through the first bending portion 4 and the retaining edge 8, so that after the retaining edge 8 is installed, on the one hand, the front bottom plate 1 and the rear bottom plate 2 can be spliced ​​to form an integrated bottom frame, and on the other hand, the inner end of the retaining edge 8 can also horizontally limit the first reinforcing rib 3, thereby realizing the rapid positioning of the first reinforcing rib 3 and facilitating the manufacturer's riveting connection between the bottom frame and the first reinforcing rib 3. After the bottom frame and the first reinforcing rib 3 are riveted to each other, the operator removes the retaining edge 8 from the first bending portion 4, and then lays double-sided tape on the top surface of the bottom frame, and then respectively sets the front cover plate 5 and the rear cover plate 6 on the front bottom plate 1 and the rear bottom plate 2, so that the middle part of the cover plate can be attached to the bottom frame through the double-sided tape after installation, and the second bending portions 7 at both ends of the cover plate can be aligned with the first bending portion 4.

[0031] After the cover is installed in place, the operator installs the retaining edge 8 on the outside of the second bending part 7 and connects them by bolts or rivets, so as to realize the mutual connection and fixation between the retaining edge 8, the bottom frame and the cover, forming an integrated frame structure. After the retaining edge 8 is installed, the operator installs the enclosure 9 and the second reinforcing rib 12 on the top sides and the rear end of the cover, and connects and fixes the lower ends of the enclosure 9 and the second reinforcing rib 12 to the cover and the bottom by bolts, and installs bolts for connecting the upper ends of the enclosure 9 and the second reinforcing rib 12 to the car wall.

Claims

1. Composite car platform based on riveting connection, characterized by: The invention comprises a chassis composed of a front bottom plate (1) and a rear bottom plate (2) arranged side by side, the bottom of the chassis is riveted with a first reinforcing rib (3), both ends of the chassis are provided with a first bending portion (4), the top of the chassis is connected with a cover plate, the cover plate is composed of a front cover plate (5) and a rear cover plate (6) arranged side by side, the front cover plate (5) is sleeved on the outside of the front bottom plate (1) and is glued to the top of the front bottom plate (1), the rear cover plate (6) is sleeved on the outside of the rear bottom plate (2) and is glued to the top of the front bottom plate (1), The cover plate is glued to each other, a second bending portion (7) is provided at both ends of the cover plate, the inner side of the second bending portion (7) is in contact with the first bending portion (4), a retaining edge (8) is provided on the outer side of the second bending portion (7), the retaining edge (8), the second bending portion (7) and the first bending portion (4) are fixedly connected, a plurality of enclosures (9) are distributed around the top of the cover plate, the lower end of the enclosure (9) is fixed to the base frame and the cover plate, and a first mounting hole (10) for connecting to the car wall is provided on the outside of the enclosure (9).

2. The composite car platform based on riveting connection according to claim 1 is characterized in that: The retaining edge (8), the second bent portion (7) and the first bent portion (4) are connected in sequence via rivets or bolts, and the enclosure (9), the cover plate and the base frame are connected in sequence via bolts.

3. The composite car platform based on riveting connection according to claim 1 is characterized in that: The cross-sectional shape of the first reinforcing rib (3) is an I-shape, and one end of the retaining edge (8) extends from the bottom of the first bending portion (4) to the inner side of the first bending portion (4) and interlocks with the first reinforcing rib (3).

4. The composite car platform based on riveting connection according to claim 1 is characterized in that: The cross-sectional shape of the enclosure (9) is C-shaped, and a second mounting hole (11) for connecting the base frame and the cover plate is provided at the bottom of the enclosure (9), and the first mounting hole (10) is provided at the top of the enclosure (9).

5. The composite car platform based on riveting connection according to claim 4 is characterized in that: A second reinforcing rib (12) with a C-shaped cross section is provided on the enclosure (9) inside the first mounting hole (10) and the second mounting hole (11); the second reinforcing rib (12) and the enclosure (9) are nested inside and outside and form a rectangular frame after being connected; the bottom of the second reinforcing rib (12) is connected to the enclosure (9), the cover plate and the bottom frame in sequence; and the top of the second reinforcing rib (12) is connected to the enclosure (9) and the car wall in sequence.

6. The composite car platform based on riveting connection according to claim 5 is characterized in that: The first mounting hole (10) and the second mounting hole (11) are mutually offset along the length direction of the enclosure (9); the second reinforcing rib (12) is in the shape of an elongated strip; a third mounting hole (13) matching the second mounting hole (11) is provided at the bottom of the second reinforcing rib (12); and a fourth mounting hole (14) matching the first mounting hole (10) is provided at the top of the second reinforcing rib (12).

7. The composite car platform based on riveting connection according to claim 6 is characterized in that: The third mounting hole (13) is located at the left and right ends of the second reinforcing rib (12), and the fourth mounting hole (14) is located in the middle of the third reinforcing rib.

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