Vulcanization corner structure and rail transit door

Abstract

The utility model belongs to the technical field of rail transit door manufacturing, and particularly relates to a vulcanization corner structure and a rail transit door, the vulcanization corner structure comprises a mounting block and an elastic supporting piece, a first extending wall is arranged on the side, close to the rear side wall, of the top wall of the mounting block, and a second extending wall is arranged on the side, close to the rear side wall, of the left side wall of the mounting block; the first extending wall and the second extending wall are in seamless connection, the upper edge of the first extending wall and the left side edge of the second extending wall intersect and form a right angle, and the distance from the upper edge of the first extending wall to the top wall of the mounting block is equal to the distance from the left side edge of the second extending wall to the left side wall of the mounting block. The outer diameter of the elastic supporting piece is smaller than or equal to the distance from the upper edge of the first extending wall to the top wall of the mounting block, the vulcanization angle has supporting force without the procedures of embedding a core pulling mold, cutting a groove, taking the core pulling mold, cutting the groove and then bonding, and the required sealing effect is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of rail transit door manufacturing, specifically to a vulcanized corner structure and a rail transit door. Background Art

[0002] In the process of manufacturing the "vulcanization corner" of the hollow rubber strip, a "core-pulling mold" is usually embedded in the vulcanization mold. After vulcanization, the rubber strip is cut open, the "core-pulling mold" is removed, and finally the "cut" is glued together.

[0003] The process is complicated and the cost is high, and the effect of glue bonding is poor, which reduces the toughness and service life of the "vulcanized corner". Utility Model Content

[0004] The purpose of this application is mainly to address the shortcomings of the existing technology. By adopting a single-sided thin-walled structure in combination with an elastic support member, a vulcanized corner structure and a rail transit door are designed. In this way, there is no need to pre-embed a "core-pulling mold", cut a "slit", remove the "core-pulling mold", "slit" and then glue the process, so that the vulcanized corner has supporting force and achieves the required sealing effect.

[0005] In order to achieve the above objectives, the technical solution adopted in this application is:

[0006] A vulcanized angle structure includes a mounting block and an elastic support member, wherein a first extension wall is provided on the side of the top wall of the mounting block close to the rear side wall, and a second extension wall is provided on the side of the left side wall of the mounting block close to the rear side wall, the first extension wall and the second extension wall are seamlessly connected, the upper edge of the first extension wall intersects with the left edge of the second extension wall and forms a right angle, the distance from the upper edge of the first extension wall to the top wall of the mounting block is equal to the distance from the left edge of the second extension wall to the left wall of the mounting block, and the outer diameter of the elastic support member is less than or equal to the distance from the upper edge of the first extension wall to the top wall of the mounting block.

[0007] Preferably, the elastic support member is bent, and the angle between the two ends of the elastic support member is 90 degrees.

[0008] Preferably, the elastic support member is a sponge rubber strip.

[0009] Preferably, the cross-section of the sponge rubber strip is non-circular.

[0010] Preferably, the elastic support member is a side wall on the sponge rubber strip parallel to the plane where the right angle of the sponge rubber strip is located, which is fixedly connected to the front side of the first extension wall and the second extension wall, and the two side walls on the sponge rubber strip located within the right angle are respectively fixedly connected to the top wall and the left side wall of the mounting block.

[0011] A rail transit door includes the above-mentioned vulcanized corner structure and a door body, wherein four sealing strips are provided on the inner wall of the door body, and the four sealing strips form a virtual rectangle with four missing corners. The two ends of the elastic support member are respectively axially fixedly connected to the ends of the two adjacent sealing strips on the door body, the right side wall and the bottom wall of the mounting block are respectively fixedly connected to the ends of the two adjacent sealing strips on the door body, the two ends of the elastic support member are fixedly connected to the top wall and the left side wall of the mounting block, and the elastic support member is on the front side of the first extension wall and the front side of the second extension wall.

[0012] Preferably, a socket is axially provided at the end of each sealing strip, and the two ends of the elastic support member are respectively inserted into one of the sockets.

[0013] Preferably, the sealing strip is made of a profile with a hollow interior.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] 1. This application adopts a single-sided thin-wall structure combined with an elastic support member to design a vulcanized corner structure and a rail transit door. In this way, there is no need to pre-embed a "core-pulling mold", cut a "slit", remove the "core-pulling mold", "slit" and then glue it together, so that the vulcanized corner has supporting force and achieves the required sealing effect.

[0016] 2. The elastic support member in the present application is bent, and the angle between the two ends of the elastic support member is 90 degrees, so that one elastic support member can support the first extension wall and the second extension wall at the same time.

[0017] 3. The cross-section of the sponge rubber strip in the present application is rectangular, which facilitates the fixed connection of the sponge rubber strip to the mounting block (generally by bonding, that is, using glue), and also facilitates the bonding of the sponge rubber strip to the first extension wall and the second extension wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of this application;

[0019] Figure 2 This is a schematic diagram of the structure installed on the door body for this application;

[0020] Figure 3 This is a structural diagram of the door body when the vulcanized angle structure is installed;

[0021] Figure 4 Schematic diagram of the door body after installing the vulcanized corner structure and closing it on the door frame.

[0022] Among them, 1. mounting block; 2. first extension wall; 3. second extension wall; 4. sponge rubber strip; 5. door body; 6. socket; 7. sealing strip; 8. door body. DETAILED DESCRIPTION

[0023] like Figure 1-4 As shown, a vulcanized angle structure includes a mounting block 1 and an elastic support member, a first extension wall 2 is provided on the top wall of the mounting block 1 on the side close to the rear side wall, and a second extension wall 3 is provided on the left side wall of the mounting block 1 on the side close to the rear side wall, the first extension wall 2 and the second extension wall 3 are seamlessly connected, the upper edge of the first extension wall 2 intersects with the left edge of the second extension wall 3 and forms a right angle, the distance from the upper edge of the first extension wall 2 to the top wall of the mounting block 1 is equal to the distance from the left edge of the second extension wall 3 to the left wall of the mounting block 1, and the outer diameter of the elastic support member is less than or equal to the distance from the upper edge of the first extension wall 2 to the top wall of the mounting block 1.

[0024] After such arrangement, when in use, the mounting block 1 is mounted on the notched corner of the door body 5, and the right side wall and bottom wall of the mounting block 1 are respectively fixedly connected to the ends of the two adjacent sealing strips 7 on the door body 5. Then, the elastic support member is mounted on the mounting block 1 and the elastic support member is fixedly connected to the front side of the first extension wall 2 and the front side of the second extension wall 3. At the same time, the two ends of the elastic support member are also fixedly connected (axially fixedly connected) to the ends of the two adjacent sealing strips 7 on the door body 5. After such arrangement, the elastic support member provides elastic support for the first extension wall 2 and the second extension wall 3, so that there is no need to pre-embed a "core-pulling mold" during vulcanization. At the same time, since there is no "core-pulling mold" during the vulcanization process, there is no need to remove the "core-pulling mold" (traditional hollow rubber strips need to be inserted into the "core-pulling mold" for vulcanization to provide support for the hollow rubber strip, and the "core-pulling mold" must be removed after vulcanization, otherwise the hollow rubber strip will lose its elasticity and the door will not be sealed). After the door body 5 is installed and formed, it can achieve a sealing effect when closed.

[0025] As a preferred embodiment, the elastic support member is bent, and the angle between the two ends of the elastic support member is 90 degrees. After such arrangement, one elastic support member can support the first extension wall 2 and the second extension wall 3 at the same time.

[0026] As a preferred embodiment, the elastic support member is a sponge rubber strip 4.

[0027] As a preferred embodiment, the cross-section of the sponge rubber strip 4 is non-circular, such as rectangular, triangular, trapezoidal, etc. This configuration facilitates the fixed connection (generally by gluing, i.e., gluing) of the sponge rubber strip 4 to the mounting block 1, and also facilitates the gluing of the sponge rubber strip 4 to the first extension wall 2 and the second extension wall 3, thereby increasing the connection area between the side wall of the sponge rubber strip 4 and the mounting block 1.

[0028] As a preferred embodiment, the elastic support member is a side wall of the sponge rubber strip 4 parallel to the plane of the right angle of the sponge rubber strip 4, which is fixedly connected to the front sides of the first extension wall 2 and the second extension wall 3. The side walls of the sponge rubber strip 4 located within the right angle are respectively fixedly connected to the top wall and left side wall of the mounting block 1. This arrangement prevents the first extension wall 2 and the second extension wall 3 from separating from the sponge rubber strip 4.

[0029] A rail transit door includes the above-mentioned vulcanized corner structure and a door body 5, wherein four sealing strips 7 are provided on the inner wall of the door body 5, and the four sealing strips 7 form a virtual rectangle with four missing corners. The two ends of the elastic support member are respectively axially fixedly connected to the ends of two adjacent sealing strips 7 on the door body 5, and the right side wall and bottom wall of the mounting block 1 are respectively fixedly connected to the ends of two adjacent sealing strips 7 on the door body 5. The two ends of the elastic support member are fixedly connected to the top wall and left side wall of the mounting block 1. The elastic support member is on the front side of the first extension wall 2 and the front side of the second extension wall 3. After the mounting block 1 and the elastic support member are installed on the door body 5, the mounting block 1, the elastic support member, and the four sealing strips 7 form a rectangle without missing corners on the inner wall of the door body 1, so that when the door body 5 is closed, the sealing strips 7 and the first extension wall 2 and the second extension wall 3 on the mounting block 1 are tightly attached to the door frame 8, thereby achieving a sealing and waterproofing effect.

[0030] As a preferred embodiment, each end of the sealing strip 7 is axially provided with a socket 6, and the two ends of the elastic support member are respectively inserted into one of the sockets 6. In this way, the provision of the socket 6 facilitates the insertion of the elastic support member into the sealing strip 7 and facilitates the connection of the elastic support member and the sealing strip 7 together.

[0031] As a preferred embodiment, the sealing strip 7 is made of a hollow profile.

Claims

1. A vulcanized corner structure, characterized in that: The invention comprises a mounting block (1) and an elastic support member, wherein a first extension wall (2) is provided on the top wall of the mounting block (1) on a side close to the rear side wall, and a second extension wall (3) is provided on the left side wall of the mounting block (1) on a side close to the rear side wall, the first extension wall (2) and the second extension wall (3) are seamlessly connected, the upper edge of the first extension wall (2) intersects with the left side edge of the second extension wall (3) and forms a right angle, the distance from the upper edge of the first extension wall (2) to the top wall of the mounting block (1) is equal to the distance from the left side edge of the second extension wall (3) to the left side wall of the mounting block (1), and the outer diameter of the elastic support member is less than or equal to the distance from the upper edge of the first extension wall (2) to the top wall of the mounting block (1).

2. A vulcanized corner structure according to claim 1, characterized in that: The elastic support member is bent, and the angle between the two ends of the elastic support member is 90 degrees.

3. A vulcanized corner structure according to claim 1, characterized in that: The elastic supporting member is a sponge rubber strip (4).

4. A vulcanized corner structure according to claim 3, characterized in that: The cross-section of the sponge rubber strip (4) is non-circular.

5. A vulcanized corner structure according to claim 2, characterized in that: The elastic support member is a side wall of the sponge rubber strip (4) parallel to the plane where the right angle of the sponge rubber strip (4) is located, which is fixedly connected to the front side of the first extension wall (2) and the second extension wall (3), and the two side walls of the sponge rubber strip (4) located within the right angle are respectively fixedly connected to the top wall and the left side wall of the mounting block (1).

6. A rail transit door, comprising the vulcanized corner structure according to any one of claims 1 to 5, characterized in that: It also includes a door body (5), the inner wall of which is provided with four sealing strips (7), the four sealing strips (7) forming a virtual rectangle with four missing corners, the two ends of the elastic support member are respectively axially fixedly connected to the ends of the two adjacent sealing strips (7) on the door body (5), the right side wall and the bottom wall of the mounting block (1) are respectively fixedly connected to the ends of the two adjacent sealing strips (7) on the door body (5), the two ends of the elastic support member are fixedly connected to the top wall and the left side wall of the mounting block (1), and the elastic support member is on the front side of the first extension wall (2) and the front side of the second extension wall (3).

7. A rail transit door according to claim 6, characterized in that: The end of each sealing strip (7) is axially provided with a socket (6), and the two ends of the elastic support member are respectively inserted into one of the sockets (6).

8. A rail transit door according to claim 7, characterized in that: The sealing strip (7) is made of a profile with a hollow interior.

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