Polyurethane roof

Abstract

The utility model relates to a polyurethane top plate which comprises a vertically-through body, a supporting ring is arranged in the body and matched with the body to form a buffering cavity, a buffering piece is filled in the buffering cavity, a connecting piece is embedded in the buffering piece, and the buffering piece is made of polyurethane materials. By adopting the buffer piece made of polyurethane, up-and-down jumping of the connecting piece can be absorbed and damped, the bearing capacity of the polyurethane material is better, and the effect on large load is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of shock absorption and bearing, in particular to a polyurethane top plate. Background Art

[0002] To rapidly attenuate vibrations between the vehicle frame and body and improve the smoothness and comfort of the vehicle's ride, automobile suspension systems are generally equipped with shock absorbers. A top plate, mounted on top of the vehicle's shock absorber, bears all loads brought about by the vehicle's movement while absorbing some of the impact. However, existing rubber-equipped top plate structures cannot withstand the heavy loads of the shock absorber piston rod. Utility Model Content

[0003] The utility model addresses the problem of insufficient mechanical strength and cushioning performance of the top plate in the prior art and provides a polyurethane top plate. The specific technical solution is as follows:

[0004] The present application provides a polyurethane top plate, comprising a main body that passes through from top to bottom, wherein the main body has a support ring inside and cooperates with the main body to form a buffer cavity, wherein the buffer cavity is filled with a buffer part, wherein a connector is embedded in the buffer part, and the buffer part is made of polyurethane.

[0005] As a further technical solution of the present invention, the top of the buffer cavity is covered with a cover plate. In the installed state, the cover plate presses against the buffer component and forces it to deform.

[0006] As a further technical solution of the present invention, the top of the buffer cavity has an outward-expanding opening, the opening cooperates with the buffer cavity to form a stepped structure, the cover plate matches the opening, and the cover plate contacts the step surface under an extreme state.

[0007] As a further technical solution of the present invention, the top of the main body has a concave cavity, which is surrounded and spaced outside the buffer cavity. The concave cavity cooperates with the buffer cavity to form a raised vertical edge. In the installed state, the vertical edge bends inward and presses the cover plate.

[0008] As a further technical solution of the present invention, the top of the main body has an extended edge extending outward, and the extended edge has a mounting hole that passes through from top to bottom. A nut is embedded in the mounting hole, and the nut matches the mounting hole. In the installed state, the nut is embedded in the mounting hole.

[0009] As a further technical solution of the present invention, the nut is a stepped structure, comprising a bottom plate and a top plate with outer diameters decreasing from bottom to top. In the installed state, the bottom plate abuts against the step surface in the installation hole.

[0010] As a further technical solution of the present invention, the outer ring wall of the top plate is provided with a plurality of radially protruding side ribs, and in the installed state, the side ribs are snapped into the installation holes.

[0011] The beneficial effects of the utility model are as follows:

[0012] By using polyurethane buffer parts, the up and down bounce of the connecting parts can be absorbed and shock-absorbing, and the polyurethane material has better bearing capacity and should be more effective for large loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Shows a schematic structural diagram of a polyurethane top plate;

[0014] Figure 2 Shows a schematic structural diagram of a buffer member and a connecting member;

[0015] Figure 3 It shows a schematic diagram of the structure in which the buffer member is installed in the body;

[0016] Figure 4 Shows a schematic diagram of the structure of the polyurethane top plate in the installed state;

[0017] Figure 5 A schematic structural diagram of a nut is shown.

[0018] Legend:

[0019] 100. Main body; 110. Support ring; 120. Buffer cavity; 121. Opening; 130. Concave cavity; 140. Vertical edge; 150. Extended edge; 151. Mounting hole; 200. Buffer part; 300. Connector; 400. Cover plate; 500. Nut; 510. Bottom plate; 520. Top plate; 521. Side ribs. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0021] In response to the technical problems of insufficient mechanical strength and cushioning performance of the top plate in the prior art, the present application provides a method of using polyurethane to replace rubber to increase the load-bearing capacity.

[0022] Figure 1 Shows a schematic structural diagram of a polyurethane top plate; Figure 2 Schematic diagram of the structure of the buffer member 200 and the connecting member 300 is shown; Figure 3 It shows a schematic structural diagram of the buffer member 200 being installed in the body 100; Figure 1-Figure 3In the embodiment, the polyurethane top plate includes a main body 100 that passes through from top to bottom. The main body 100 has a support ring 110 inside and cooperates with the main body 100 to form a buffer cavity 120. The buffer cavity 120 is filled with a buffer member 200, and a connector 300 is embedded in the buffer member 200. After installation, the main body 100 is installed between the vehicle body and the shock absorber and connected to the two to withstand the limit load force under extreme working conditions. The piston rod is relatively connected to the connector 300. When the connector 300 moves downward with the piston rod, the support ring 110 and the connector 300 approach each other, and the buffer member 200 filled between the connector 300 and the support ring 110 is squeezed to absorb the impact of the piston rod, and the support ring 110 can limit the downward jump displacement, control the upward movement displacement of the entire vehicle, and thus improve Improve the handling performance of the entire vehicle; the top of the buffer cavity 120 is covered with a cover plate 400, and in the installed state, the cover plate 400 presses against the buffer part 200 and forces it to deform; the cover plate 400 can enter the buffer cavity 120 and press the buffer part 200 in the buffer cavity 120, and the cover plate 400 is allowed to move up and down in the buffer cavity 120 to force the buffer part 200 to deform accordingly to absorb energy; the top of the buffer cavity 120 has an outward-expanding opening 121, and the opening 121 cooperates with the buffer cavity 120 to form a stepped structure, and the cover plate 400 matches the opening 121, and the cover plate 400 contacts the step surface under extreme conditions; that is, the cover plate 400 is only allowed to move within the space of the opening 121, limiting the upward jumping displacement, controlling the downward movement displacement of the entire vehicle, and thus improving the handling performance of the entire vehicle.

[0023] Figure 4 Shows a schematic diagram of the structure of the polyurethane top plate in the installed state; Figure 4 In the figure, the top of the main body 100 has a concave cavity 130, which is surrounded and spaced outside the buffer cavity 120. The cavity 130 cooperates with the buffer cavity 120 to form a raised vertical edge 140. In the installed state, the vertical edge 140 is bent inward and presses the cover plate 400; before installation, the vertical edge 140 is vertically raised. When the cover plate 400 is installed in the buffer cavity 120, the top of the vertical edge 140 is higher than the upper surface of the cover plate 400 adjacent to it, and the vertical edge 140 is pressed from the outside to the inside, so that the top of the vertical edge 140 is bent toward the surface of the cover plate 400 and presses the cover plate 400, thereby limiting the position of the cover plate 400.

[0024] Figure 5 shows a schematic structural diagram of the nut 500; Figure 5In the embodiment, the top of the body 100 has an extended edge 150 extending outward, and the extended edge 150 has a mounting hole 151 which is through-through from top to bottom, and a nut 500 is embedded in the mounting hole 151, and the nut 500 matches the mounting hole 151. In the installed state, the nut 500 is embedded in the mounting hole 151; by embedding the nut 500 in the mounting hole 151, during installation, a bolt is used to pass through the nut 500 and the extended edge 150 in sequence and then connected to the top of the vehicle body to complete the overall connection of the device; the nut 500 is a stepped structure, and the nut 500 includes a bottom plate 510 and a top plate 520 with outer diameters decreasing from bottom to top. In the installed state, the bottom plate 510 contacts the mounting hole 151; since the nut 500 matches the mounting hole 151 and the nut 500 is a stepped structure, the bottom plate 510 can abut against the step surface in the mounting hole 151, and the bolt passes through the mounting hole 151 from top to bottom and is connected with the nut 500, which can complete the connection between the vehicle body and the main body 100; a plurality of radially protruding side ribs 521 are provided on the outer ring wall of the top plate 520, and in the installed state, the side ribs 521 are stuck in the mounting hole 151; during installation, a concave cavity corresponding to the side ribs 521 is provided in the mounting hole 151, and the side ribs 521 are aligned with the concave cavity and then inserted, so that the nut 500 is restricted in the mounting hole 151 as a whole to prevent the nut 500 from rotating relative to each other.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. Polyurethane top plate, characterized in that, The invention comprises a main body (100) which is through-through from top to bottom. The main body (100) has a support ring (110) inside and cooperates with the main body (100) to form a buffer cavity (120). The buffer cavity (120) is filled with a buffer component (200). A connecting component (300) is embedded in the buffer component (200). The buffer component (200) is made of polyurethane.

2. The polyurethane top plate according to claim 1, characterized in that The top of the buffer cavity (120) is covered with a cover plate (400). In an installed state, the cover plate (400) presses against the buffer component (200) and forces it to deform.

3. The polyurethane top plate according to claim 2, characterized in that: The top of the buffer cavity (120) has an outwardly expanding opening (121), and the opening (121) cooperates with the buffer cavity (120) to form a stepped structure. The cover plate (400) matches the opening (121), and the cover plate (400) contacts the stepped surface in an extreme state.

4. The polyurethane top plate according to claim 3, characterized in that: The top of the main body (100) is provided with a concave cavity (130), and the cavity (130) is arranged around and spaced outside the buffer cavity (120). The cavity (130) cooperates with the buffer cavity (120) to form a raised vertical edge (140). In the installed state, the vertical edge (140) is bent inward and presses the cover plate (400).

5. The polyurethane top plate according to claim 4, characterized in that: The top end of the body (100) has an extended edge (150) extending outward, and the extended edge (150) has a mounting hole (151) extending vertically through the body (100). A nut (500) is embedded in the mounting hole (151), and the nut (500) matches the mounting hole (151). In the installed state, the nut (500) is embedded in the mounting hole (151).

6. The polyurethane top plate according to claim 5, characterized in that: The nut (500) is a stepped structure, comprising a bottom plate (510) and a top plate (520) whose outer diameters decrease from bottom to top. In the installed state, the bottom plate (510) contacts the stepped surface in the installation hole (151).

7. The polyurethane top plate according to claim 6, characterized in that: The outer ring wall of the top plate (520) is provided with a plurality of radially protruding side ribs (521), and in the installed state, the side ribs (521) are snapped into the installation hole (151).

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