A waterproof structure of a rod for rail transit switch conversion

Abstract

The present invention relates to a rod member waterproof structure for rail transit turnout conversion, characterized in that it comprises at least: a first rod member (1), a second rod member (2), a device housing (3), a hole sleeve part (4), a waterproof column (5), and a sealing ring (6), wherein the first rod member (1) and the second rod member (2) are arranged in parallel to form a two-piece structure rod member, the hole sleeve part (4) has a middle opening, and the two-piece structure rod member passes through the middle opening, the hole sleeve part (4) is fixed on the device housing (3), the sealing ring (6) is sleeved on the outer periphery of the two-piece structure rod member and fixed in the hole sleeve part (4), and the waterproof column (5) is installed in the hole sleeve part (4) and inserted into the gap between the first rod member (1) and the second rod member (2). The rod member waterproof structure for rail transit turnout conversion can reduce the probability of water flowing into the interior of the device from the joint seam of the two-piece structure rod member.

Description

Technical Field

[0001] The invention belongs to rail transit turnout switching equipment, in particular to a rod waterproof structure for rail transit turnout switching, which is suitable for a detection rod of a two-piece structure with a joint seam and extending out of a shell in the rail transit turnout switching equipment. Background Art

[0002] When the turnout switching equipment realizes the function of detecting the turnout status, a detection rod (also commonly called an indication rod or a locking rod) is usually extended from the equipment housing to connect with the movable part of the turnout (heart rail or point rail) and move with it. The position of the detection rod is detected inside the equipment to reflect the turnout status. In order to facilitate the adjustment of the detection range, the detection rod is usually composed of two pieces of rods that are fitted together. Changing the relative offset distance can change its detection range; when used for split turnouts, the two pieces of rods also need to be able to shift relative to each other because the turnout has a differential requirement. In the end, there is usually a fine gap between the two fitted rods. When there is water on the surface of the rod, even if there is a sealing ring on the outer periphery of the rod, water will flow into the protective housing of the equipment from the fine gap, thereby affecting the normal use of the equipment. During on-site use, the number of equipment failures, equipment repairs, and replacements caused by water ingress is large, which seriously consumes resources and affects the normal application of the equipment.

[0003] In order to solve the problem of water ingress along the two-piece structural rods, a variety of waterproof covers were used on site to prevent water from entering the equipment. However, this brought inconvenience to maintenance and inspection. Moreover, the failure of the waterproof cover to fix it affected driving safety. It can be seen that the waterproofing of the rod structure itself and the improvement of the waterproof structure at the entrance of the shell rod are of great significance. Summary of the invention

[0004] The object of the present invention is to provide a waterproof rod structure for rail transit turnout conversion, so as to reduce the probability of water flowing into the interior of the device from the joint seam between two structural rods.

[0005] The technical solution of the present invention is: it relates to a rod waterproof structure for rail transit turnout conversion, which is characterized by: at least including: a first rod, a second rod, an equipment housing, a hole sleeve part, a waterproof column, and a sealing ring. The first rod and the second rod are arranged in parallel to form a two-piece structure rod, the hole sleeve part has a middle opening, and the two-piece structure rod passes through the middle opening, the hole sleeve part is fixed on the equipment housing, the sealing ring is sleeved on the outer periphery of the two-piece structure rod and fixed in the hole sleeve part, and the waterproof column is installed in the hole sleeve part and inserted into the gap between the first rod and the second rod.

[0006] The gap between the first rod and the second rod is a straight gap or a step gap along the movement direction of the rods.

[0007] The inner hole shape of the sealing ring is the same as or similar to the outer periphery shape of the rod of the two-piece structure, and the dimensions of the inner hole of the sealing ring are smaller than the corresponding dimensions of the outer periphery of the rod of the two-piece structure formed by the first rod and the second rod.

[0008] A mounting hole for a sealing ring is provided at one end of the hole sleeve part, and the mounting hole for the sealing ring is coaxial with the middle opening of the hole sleeve part; a mounting hole for a waterproof column is provided on the hole sleeve part in a direction intersecting with the middle hole, and the mounting hole for the waterproof column is close to but does not intersect with the mounting hole for the sealing ring, and the axis of the mounting hole for the waterproof column passes through the gap between the two structural rods.

[0009] The core of the waterproof column is made of supporting material, the middle section of the surface is made of elastic material, and the outer diameter of the elastic material section is greater than the gap size between the first rod and the second rod.

[0010] The waterproof column mounting hole has at least one section of thread, and the end of the waterproof column has a thread that matches the thread of the waterproof column mounting hole. After the thread is screwed in, the waterproof column is prevented from falling out; or the waterproof column is installed in the waterproof column mounting hole, including a tightening screw plug that matches the thread of the waterproof column mounting hole, which is used to prevent the waterproof column from falling out of the waterproof column mounting hole.

[0011] The elastic material on the surface of the waterproof column includes but is not limited to polyurethane, polytetrafluoroethylene, etc.

[0012] The principles and advantages of the present invention are:

[0013] The sealing ring separates the moisture attached to the outer surface of the two structural rods during their movement and prevents them from entering the equipment housing. The surface of the waterproof column is made of elastic material, and its outer diameter is slightly larger than the gap size between the two structural rods. After being installed in this gap, it is tightly attached to the surface of the rod and maintains a certain pressure. When relative movement occurs, the attachments (including water) with weak adhesion on the surface of the rod gap can be scraped off, so that they cannot enter the equipment with the rod. In this way, the outer periphery of the rods and the joint seam (fitting surface) of the two-piece structure are sealed, preventing moisture from entering the equipment housing with the moving rods.

[0014] The waterproof column installed in the hole sleeve part can be pulled out or inserted into the gap between the two structural rods, and can be replaced after being damaged or worn.

[0015] The invention has a simple and reliable structure and is conducive to the transformation of existing equipment.

[0016] The present invention will be further described below in conjunction with the accompanying drawings of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of embodiment 1 of the present invention;

[0018] Figure 2 yes Figure 1AA section view;

[0019] Figure 3 yes Figure 1 BB cross-sectional view;

[0020] Figure 4 It is a structural schematic diagram of embodiment 2 of the present invention;

[0021] Figure 5 yes Figure 4 CC section view;

[0022] Figure 6 yes Figure 4 DD cross-sectional view.

[0023] In the figure, 1. first rod; 2. second rod; 3. equipment housing; 4. hole sleeve parts; 5. waterproof column; 6. sealing ring; 7. tightening screw plug. DETAILED DESCRIPTION

[0024] Example 1

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention relates to a rod waterproof structure for rail transit switch conversion, which at least comprises: a first rod 1, a second rod 2, an equipment housing 3, a hole sleeve part 4, a waterproof column 5, and a sealing ring 6, wherein the hole sleeve part 4 has a central opening; the equipment housing 3 has an opening matching the outer periphery of the hole sleeve part 4, the hole sleeve part 4 is installed in the opening and fixedly installed, and the rod formed by the first rod 1 and the second rod 2 sticking out from the central opening of the hole sleeve part 4; it can reciprocate along the hole axis direction of the central opening; the ends of the two structural rods are exposed to the equipment housing 3, and the first rod 1 and the second rod 2 have steps on one side of the sticking surface, so that the sticking surface of the two structural rods is extended when extending. A gap is formed at one end of the hole sleeve part 4. The sealing ring 6 is made of elastic material, which is sleeved on the outer periphery of the two structural rods and fixed in the hole sleeve part 4. The inner hole of the sealing ring 6 is smaller than the outer periphery of the two structural rods. After installation, they are squeezed against each other. The waterproof column 5 is installed in the hole sleeve part 4 and inserted into the gap between the two structural rods. The core of the waterproof column 5 is a supporting material for fixing the surface material. The surface of the waterproof column 5 is an elastic wear-resistant material, and its outer diameter is larger than the gap value between the two structural rods. When the two structural rods are extended and pulled into the opening of the equipment housing 3, the elastic material on the surface of the waterproof column 5 rubs against the two side surfaces of the gap between the two structural rods, scraping off the moisture on the surface to prevent it from entering the interior of the equipment.

[0026] A sealing ring 6 mounting hole is provided at one end of the middle opening of the hole sleeve part 4, and the sealing ring 6 mounting hole is coaxial with the middle opening of the hole sleeve part 4. A waterproof column 5 mounting hole is provided in the direction of intersection of the middle opening of the hole sleeve part 4, and the waterproof column 5 mounting hole is close to the sealing ring 6 mounting hole but does not intersect. The axis of the waterproof column 5 mounting hole passes through the gap between the two structural rods, and the waterproof column 5 mounting hole is divided into two sections by the middle hole, and at least one of the two sections has threads.

[0027] There is no elastic material at the two ends of the waterproof column 5, and one of the ends has a thread matching its mounting hole. The waterproof column 5 is inserted into its mounting hole and passes through the gap between the two structural rods. After the threads are screwed in, the waterproof column 5 can be relatively fixed in the gap between the two structural rods.

[0028] Example 2

[0029] like Figure 3 , Figure 4 and Figure 5 As shown, Example 2 is different from Example 1 in that the mounting hole of the waterproof column 5 is divided into two sections by the middle hole, the lower section is a smooth hole, and the upper section is a threaded hole. The outer circumference of the clamping screw plug 7 is threaded, matching the thread of the mounting hole of the waterproof column 5. One end of the clamping screw plug 7 is provided with a blind hole, and the outlet of the blind hole is on the side where the clamping screw plug 7 is screwed into the mounting hole of the waterproof column 5. There is no elastic material at the two ends of the waterproof column 5, one of which can be inserted into the smooth hole of the mounting hole of the waterproof column 5, and the other end matches the blind hole of the clamping screw plug 7, and is limited by the clamping screw plug 7 and cannot fall out of the mounting hole of the waterproof column 5.

[0030] The rest is basically the same as in Example 1 and will not be described in detail.

[0031] The present invention can be applied in this field, and can also be applied in other fields using the same technology.

Claims

1. A rod waterproof structure for rail transit switch switching, comprising: a first rod (1), a second rod (2), wherein: The device also comprises a device housing (3), a hole sleeve part (4), a waterproof column (5), and a sealing ring (6); the first rod member (1) and the second rod member (2) are arranged side by side to form a two-piece structure rod member; the hole sleeve part (4) has a middle opening, and the two-piece structure rod member passes through the middle opening; the hole sleeve part (4) is fixed to the device housing (3); the sealing ring (6) is sleeved on the outer periphery of the two-piece structure rod member and fixed in the hole sleeve part (4); the waterproof column (5) is installed in the hole sleeve part (4) and inserted into the gap between the first rod member (1) and the second rod member (2); the gap between the first rod member (1) and the second rod member (2) is a straight gap along the movement direction of the rod member. The core of the waterproof column (5) is a supporting material, and the middle section of the surface is an elastic material. The outer diameter of the elastic material section is larger than the gap size between the first rod (1) and the second rod (2). After being installed in the gap, it is tightly attached to the surface of the rod and maintains a certain pressure. When relative movement occurs, the attachments with weak adhesion on the surface of the rod gap can be scraped off, so that they cannot enter the interior of the device with the rod. The hole sleeve part (4) has a mounting hole for the waterproof column (5) in the direction intersecting with the middle hole. The mounting hole of the waterproof column (5) is close to but not intersecting with the sealing ring (6). The axis of the mounting hole of the waterproof column (5) passes through the gap between the two structural rods.

2. According to claim 1, a rod waterproof structure for rail transit turnout conversion is characterized by: The installation hole of the waterproof column (5) has at least one threaded section, which is used to prevent the waterproof column (5) from falling out.

3. According to claim 1, a rod waterproof structure for rail transit turnout conversion is characterized by: The end of the waterproof column (5) is provided with a thread which matches the thread of the installation hole of the waterproof column (5), and after the thread is screwed in, the waterproof column is prevented from falling out.

4. According to claim 1, a rod waterproof structure for rail transit turnout conversion is characterized by: The waterproof column (5) is installed in the hole sleeve part (4), and includes a compression screw plug (7) threadedly connected to the installation hole of the waterproof column (5) to prevent the waterproof column (5) from falling out of the waterproof column installation hole.

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