Goods cover sealing strip of railway covered hopper car

Abstract

The utility model discloses a railway covered hopper car cargo cover sealing strip, which relates to the technical field of sealing structures, and comprises a hollow sealing strip and a pressing strip, the hollow sealing strip comprises an arc-shaped part, a clamping part connected to the bottom of the arc-shaped part and a special-shaped auxiliary sealing element which is arranged at the top of the arc-shaped part, is contacted with a top plate and has a rainproof function; the clamping part is connected into the pressing strip in a sealed embedding mode, and the pressing strip is installed on the top of the installation base. The sealing rubber strip is reasonable in design, the hollow part is arranged in the arc-shaped part, the extrusion deformation capacity between the sealing rubber strip and the top plate and the recovery capacity of the rubber strip are improved, and the sealing waterproof performance is improved through the special-shaped auxiliary sealing piece.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, and more specifically to the technical field of a cargo cover sealing strip for a covered hopper car on railways. Background Art

[0002] A sealing strip is a product that seals something to make it not easy to open and plays roles such as shock absorption, waterproofing, sound insulation, heat insulation, dust prevention, and fixing. Sealing strips are made of various materials such as rubber, paper, metal, and plastic. The following technologies have been disclosed in existing patents:

[0003] The patent with the publication number CN207647429U and the patent name "A sealing strip for rail vehicles and a door system using the sealing strip" discloses the following content: The sealing strip includes a sealing part with an airbag cavity, and one or more exhaust holes are opened on the side wall of the airbag cavity located on the outer side of the vehicle. In the utility model, the exhaust holes are arranged on the outer side of the vehicle of the sealing strip, which can effectively prevent the water in the circumferential sealing strip from entering the door through the exhaust holes. Even if rainwater enters the inside of the sealing strip through the exhaust holes, it will not enter the vehicle interior, further improving the waterproof performance of the door.

[0004] The patent with the publication number CN112252112A and the patent name "An expansion joint sealing strip and its application" discloses the following content: The sealing strip includes a sealing strip body in a strip structure, and several side sealing strips arranged parallel to each other on both axial sides of the sealing strip body and extending along the axial direction of the sealing strip body. The expansion joint sealing strip of the utility model can be used for sealing the expansion joints of concrete highway pavements or railway concrete bases. The utility model is reasonably designed, and the side sealing strips arranged on both sides of the sealing strip body make the utility model have a unique "fishbone-shaped" structure. When installed, the side sealing strips on both sides of the product are closely attached to both sides of the concrete expansion joint, achieving a good sealing effect.

[0005] One of the sealing forms adopted on railway freight cars in our country is liquid sealant or foam sealant sealing, and the other is mechanical sealing. The first sealing form is used more in static structures. If it is for a moving mechanism, it cannot achieve the sealing effect; the second sealing form can be applied to moving structures, but mechanical sealing requires a certain gap to ensure the flexible movement of the mechanism. Due to reasons such as the deformation of the steel structure, this sealing structure cannot seal situations such as rainwater. Content of the Utility Model

[0006] The purpose of the utility model is to provide a cargo cover sealing strip for a covered hopper car on railways in order to solve the technical problems of poor flexibility of existing sealing strips and inability to seal during movement. It can reduce the influence of the sealing strip on the steel structure, assembly tolerance, etc., and still play a sealing role.

[0007] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0008] The utility model provides a cargo cover sealing strip for a covered hopper car on railways, which comprises a hollow sealing strip and a pressing strip. The hollow sealing strip includes an arc portion, a clamping portion connected to the bottom of the arc portion, and a special-shaped auxiliary sealing member arranged at the top of the arc portion in contact with the top plate and having a rainproof function. The clamping portion is connected to the pressing strip in a sealed and embedded manner, and the pressing strip is installed on the top of the mounting seat.

[0009] In one embodiment, a hollow portion is arranged inside the arc portion. The bottom of the arc portion is a bottom plane, the top of the arc portion is a convex arc surface at the top, the special-shaped auxiliary sealing member is located on the convex arc surface at the top, and the clamping portion is connected to the bottom plane through a connecting portion.

[0010] Specifically, a hollow portion is arranged inside the arc portion to improve the extrusion deformation ability between the sealing strip and the top plate and the recovery ability of the strip.

[0011] [[ID=,13]]In one embodiment, the pressing strip is strip-shaped, and a two-stage stepped strip-shaped groove with a smaller upper part and a larger lower part is arranged on the upper surface of the pressing strip along the length direction. The clamping portion has a shape adapted to the bottom groove of the two-stage stepped strip-shaped groove.

[0012] In one embodiment, a plurality of serrated first anti-slip teeth are arranged inside the bottom groove of the two-stage stepped strip-shaped groove, and a plurality of serrated second anti-slip teeth are arranged on the outer surface of the clamping portion. The first anti-slip teeth are engaged with the second anti-slip teeth.

[0013] Specifically, a serrated mounting base is adopted to increase the friction with the mounting surface and improve the anti-slip performance of the sealing strip. An embedded installation method is adopted to pull the sealing strip along the length direction thereof, which is convenient for disassembly and reduces the labor intensity.

[0014] In one embodiment, the hollow sealing strip further includes a side rainproof skirt vulcanized into one body with the arc portion, and the side rainproof skirt is connected to one side of the bottom of the arc portion.

[0015] In one embodiment, the special-shaped auxiliary sealing member includes a left upper top rainproof edge and a right upper top rainproof edge. The joints of the left upper top rainproof edge and the right upper top rainproof edge with the top of the arc portion are arc-shaped strips, and bending portions with the same bending direction are arranged at the free ends of the two arc-shaped strips. The bending portions are in sealed contact with the top plate.

[0016] Specifically, the clamping portion is installed in the pressing strip, and the top plate presses the hollow sealing strip to compress the left upper top rainproof edge, the arc portion, and the right upper top rainproof edge by a certain amount to achieve a sealing effect.

[0017] In one embodiment, the shape of the hollow portion is the same as the external contour shape of the arc portion.

[0018] In one embodiment, the side rain skirt includes an inclined plate connected to the arc-shaped portion and a vertical plate connected to the inclined plate, wherein a bottom position of the vertical plate is lower than a top position of the mounting seat.

[0019] Specifically, the side rain skirts wrap around the mounting base to provide side rain protection. The sealing strip features a hollow arc shape, increasing the strip's deformation tolerance and resilience. The serrated mounting base enhances the strip's slip resistance. The snap-in mounting method improves assembly ease. The top rain guard and side skirts enhance rain protection and sealing performance. The addition of a side rain skirt on one side effectively prevents side water from entering.

[0020] In one embodiment, the tops of the left upper rainproof edge and the right upper rainproof edge are at the same height and are higher than the highest point of the arc-shaped portion.

[0021] Specifically, the sealing strip adopts a hollow arc cross-section, and rainproof edges are added on the left and right sides of the top. The height is higher than the top surface of the arc part, which allows a certain degree of non-flatness of the installation object without affecting the sealing structure.

[0022] The beneficial effects of the utility model are as follows:

[0023] 1. A hollow part is provided inside the arc-shaped part to improve the extrusion deformation ability between the sealing strip and the top plate and the recovery ability of the strip. The anisotropic auxiliary seal increases the sealing and waterproof performance.

[0024] 2. Side rain skirts wrap around the mounting base to provide side rain protection. The sealing strip features a hollow arc shape, increasing the strip's deformation and resilience. The serrated mounting base enhances the strip's slip resistance. The flush-mount installation method improves assembly ease. The top rain guard and side skirts enhance rain protection and sealing performance. The addition of a side rain skirt on one side effectively prevents side intrusion of rainwater.

[0025] 3. The sealing strip adopts a hollow arc cross-section, and rainproof edges are added on the left and right sides of the top. The height is higher than the top surface of the arc part, which allows a certain degree of non-planarity of the installation object without affecting the sealing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is an installation diagram of a sealing strip for a railway covered hopper car cargo cover provided by the utility model;

[0028] Figure 2 The front view of a cargo cover sealing strip for a covered hopper car on railways provided by the present utility model;

[0029] Figure 3 The side view of a cargo cover sealing strip for a covered hopper car on railways provided by the present utility model;

[0030] Reference numerals: 1 - top plate, 2 - hollow sealing strip, 3 - pressing strip, 4 - mounting seat, 2.1 - upper left top rain shield, 2.2 - arc portion, 2.3 - upper right top rain shield, 2.4 - clamping portion, 2.5 - side rain skirt. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0033] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0034] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0035] It should also be noted that, unless otherwise clearly specified and limited, the terms "set" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances, and thus it should not be construed as a limitation to the present invention.

[0036] Embodiment 1

[0037] As Figures 1 to 3 shown, this embodiment provides a cargo cover sealing strip for a covered hopper car of a railway, which includes a hollow sealing strip 2 and a pressing strip 3. The hollow sealing strip 2 includes an arc portion, a clamping portion connected to the bottom of the arc portion, and a special-shaped auxiliary sealing member provided at the top of the arc portion and in contact with the top plate 1 and having a rainproof function. The clamping portion is connected to the pressing strip 3 in a sealed and embedded manner, and the pressing strip 3 is installed on the top of the mounting seat 4.

[0038] Embodiment 2

[0039] As Figures 1 to 3 shown, this embodiment provides a cargo cover sealing strip for a covered hopper car of a railway, which includes a hollow sealing strip 2 and a pressing strip 3. The hollow sealing strip 2 includes an arc portion, a clamping portion connected to the bottom of the arc portion, and a special-shaped auxiliary sealing member provided at the top of the arc portion and in contact with the top plate 1 and having a rainproof function. The clamping portion is connected to the pressing strip 3 in a sealed and embedded manner, and the pressing strip 3 is installed on the top of the mounting seat 4.

[0040] A hollow portion is provided inside the arc portion. The bottom of the arc portion is a bottom plane, the top of the arc portion is a top convex arc surface, the special-shaped auxiliary sealing member is located on the top convex arc surface, and the clamping portion is connected to the bottom plane through a connecting portion.

[0041] Specifically, a hollow portion is provided inside the arc portion to improve the extrusion deformation ability between the sealing strip and the top plate 1 and the recovery ability of the strip.

[0042] Embodiment 3

[0043] As Figures 1 to 3 shown, this embodiment provides a cargo cover sealing strip for a covered hopper car of a railway, which includes a hollow sealing strip 2 and a pressing strip 3. The hollow sealing strip 2 includes an arc portion, a clamping portion connected to the bottom of the arc portion, and a special-shaped auxiliary sealing member provided at the top of the arc portion and in contact with the top plate 1 and having a rainproof function. The clamping portion is connected to the pressing strip 3 in a sealed and embedded manner, and the pressing strip 3 is installed on the top of the mounting seat 4.

[0044] A hollow portion is provided inside the arc portion. The bottom of the arc portion is a bottom plane, the top of the arc portion is a top convex arc surface, the special-shaped auxiliary sealing member is located on the top convex arc surface, and the clamping portion is connected to the bottom plane through a connecting portion.

[0045] The caulking strip 3 is strip-shaped, and a second-level stepped strip-shaped groove with a smaller upper part and a larger lower part is arranged along the length direction on the upper surface of the caulking strip 3. The clamping part has a shape adapted to the bottom groove of the second-level stepped strip-shaped groove.

[0046] A number of serrated first anti-slip teeth are arranged on the inner part of the bottom groove of the second-level stepped strip-shaped groove, and a number of serrated second anti-slip teeth are arranged on the outer surface of the clamping part. The first anti-slip teeth and the second anti-slip teeth are meshed with each other.

[0047] Specifically, a serrated mounting base is adopted to increase the friction with the mounting surface and improve the anti-slip performance of the sealing strip. An embedded mounting method is adopted to pull the sealing strip along its length direction, which is convenient for disassembly and assembly and reduces the labor intensity.

[0048] Embodiment 4

[0049] This embodiment is further optimized on the basis of Embodiment 2 or Embodiment 3. Specifically:

[0050] The hollow sealing strip 2 further includes a side rainproof skirt vulcanized integrally with the arc part, and the side rainproof skirt is connected to one side of the bottom of the arc part.

[0051] The special-shaped auxiliary seal includes a left upper top rainproof edge 2.1 and a right upper top rainproof edge. The joints of the left upper top rainproof edge 2.1 and the right upper top rainproof edge with the top of the arc part are arc-shaped strips, and bending parts with the same bending direction are arranged at the free ends of the two arc-shaped strips. The bending parts are in sealing contact with the top plate 1.

[0052] Specifically, the clamping part is installed in the caulking strip 3, and the top plate 1 presses the hollow sealing strip 2 to compress the left upper top rainproof edge 2.1, the arc part, and the right upper top rainproof edge by a certain amount to achieve the sealing effect.

[0053] Embodiment 5

[0054] This embodiment is further optimized on the basis of Embodiment 4. Specifically:

[0055] The shape of the hollow part is the same as the external contour shape of the arc part.

[0056] The side rainproof skirt includes an inclined plate connected to the arc part and a vertical plate connected to the inclined plate. The bottom position of the vertical plate is lower than the top position of the mounting seat 4.

[0057] Specifically, the side rainproof skirt wraps around the outside of the mounting seat 4 to achieve the side rainproof effect. The sealing strip adopts a hollow circular arc form to increase the extrusion deformation amount and recovery ability of the rubber strip. The serrated mounting base improves the anti-slip property of the rubber strip. The embedded mounting method improves the assembly ability. The top rainproof edge and the side skirt increase the rainproof ability and improve the sealing performance. A side rainproof skirt is added on one side to effectively prevent rainwater and the like from entering from the side.

[0058] Example 6

[0059] This example is a further optimization based on Example 4 or Example 5, specifically:

[0060] The top rainproof edges 2.1 on the upper left and the top rainproof edge on the upper right have the same height and are higher than the highest position of the arc part.

[0061] Specifically, the sealing strip adopts a hollow circular arc cross-section, and rainproof edges are added on both the left and right sides of the top. The height is higher than the circular arc top surface of the arc part, allowing a certain degree of unevenness of the installation object without affecting the sealing structure.

Claims

1. A sealing strip for the cargo cover of a covered hopper car for railways, characterized in that, It includes a hollow sealing strip (2) and a pressing strip (3). The hollow sealing strip (2) includes an arc-shaped portion (2.2), a clamping portion (2.4) connected to the bottom of the arc-shaped portion (2.2), and a special-shaped auxiliary seal provided at the top of the arc-shaped portion (2.2) in contact with the top plate (1) and having a rainproof function. The clamping portion (2.4) is connected to the pressing strip (3) in a sealed embedding manner, and the pressing strip (3) is installed on the top of the mounting seat (4).

2. The sealed strip for the cargo cover of a covered hopper car for railways according to claim 1, characterized in that, A hollow portion is provided inside the arc-shaped portion (2.2). The bottom of the arc-shaped portion (2.2) is a bottom plane, the top of the arc-shaped portion (2.2) is a top convex arc surface, the special-shaped auxiliary seal is located on the top convex arc surface, and the clamping portion (2.4) is connected to the bottom plane through a connecting portion.

3. A seal strip for the cargo cover of a covered hopper car for railways according to claim 2, characterized in that, The pressing strip (3) is strip-shaped, and a second-level stepped strip-shaped groove with a smaller upper part and a larger lower part is provided along the length direction on the upper surface of the pressing strip (3). The clamping portion (2.4) has a shape adapted to the bottom groove of the second-level stepped strip-shaped groove.

4. A seal strip for the cargo cover of a covered hopper car for railways according to claim 3, characterized in that, A number of serrated first anti-slip teeth are provided inside the bottom groove of the second-level stepped strip-shaped groove, and a number of serrated second anti-slip teeth are provided on the outer surface of the clamping portion (2.4). The first anti-slip teeth and the second anti-slip teeth are engaged with each other.

5. A seal strip for the cargo cover of a covered hopper car for railways according to claim 3, characterized in that, The hollow sealing strip (2) further includes a side rainproof skirt (2.5) vulcanized integrally with the arc-shaped portion (2.2), and the side rainproof skirt (2.5) is connected to one side of the bottom of the arc-shaped portion (2.2).

6. The sealed strip for the cargo cover of the covered hopper car for railways according to claim 5, characterized in that, The special-shaped auxiliary seal includes a left upper top rainproof edge (2.1) and a right upper top rainproof edge (2.3). The connections between the left upper top rainproof edge (2.1) and the right upper top rainproof edge (2.3) and the top of the arc-shaped portion (2.2) are arc-shaped strips, and the free ends of the two arc-shaped strips are both provided with bending portions with the same bending direction, and the bending portions are in sealed contact with the top plate (1).

7. A sealing strip for the cargo cover of a covered hopper car for railways according to claim 2, characterized in that, The shape of the hollow portion is the same as the external contour shape of the arc-shaped portion (2.2).

8. The sealed strip for the cargo cover of a covered hopper car for railways according to claim 5, characterized in that, The side rainproof skirt (2.5) includes an inclined plate connected to the arc-shaped portion (2.2) and a vertical plate connected to the inclined plate. The bottom position of the vertical plate is lower than the top position of the mounting seat (4).

9. A seal strip for the cargo cover of a covered hopper car for railways according to claim 6, characterized in that, The top heights of the left upper top rainproof edge (2.1) and the right upper top rainproof edge (2.3) are the same.

10. The sealing strip for the cargo cover of a covered hopper car for railways according to claim 6, characterized in that, The top heights of the left upper top rainproof edge (2.1) and the right upper top rainproof edge (2.3) are higher than the highest position of the arc-shaped portion (2.2).

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