Quick plugging component for relieving abnormal air leakage of valve port during bilateral air exhaust of train

Abstract

The utility model relates to the technical field of train release valve plugging, in particular to a quick plugging component for abnormal air leakage of a bilateral exhaust release valve port of a train, which comprises a bottom plate, C-shaped fasteners are fixed on one side of the bottom plate close to two sides, a plugging block is arranged on the upper side of the bottom plate, and a fastening bolt is rotatably connected to the lower side of the bottom plate in a threaded penetrating manner. The top end of the fastening bolt abuts against the lower side of the plugging block, limiting rods are fixed to the positions, close to the two ends, of the two sides of the plugging block, limiting sliding ways are formed in the positions, located on the limiting rods, of the side faces of the C-shaped buckles, and a release valve body is arranged between the two C-shaped buckles. The release valve solves the problems that an existing release valve is simple in blocking structure and not ideal in blocking effect.

Description

Technical Field

[0001] This utility model relates to the field of train relief valve sealing technology, specifically to a rapid sealing component for abnormal air leakage at the dual-sided exhaust relief valve ports of a train. Background Technology

[0002] The dual-sided exhaust relief valves of railway passenger cars are installed on the branch pipes of the vehicle's braking system. One end is connected to the unit brake cylinder, and the other end is connected to the intermediate body of the distribution valve. When handling brake malfunctions within the depot, the valves must be closed to exhaust the air supply to the brake cylinders and auxiliary air cylinders, and to cut off the air supply path to the brake cylinders to effectively prevent accidents. After the malfunction is resolved, the valves must be opened to restore the braking system's function. During normal train operation, abnormal air leakage at the lower exhaust port of the dual-sided exhaust relief valves can cause the train to lose pressure after braking, leading to brake system failure. Given the high traffic volume of the railway system, a malfunction that cannot be effectively addressed within 20 minutes of stopping will result in significant economic losses. Using ordinary rubber gaskets and wire for sealing is insufficient to effectively control 600 kPa pressure leakage, offering low safety performance, inconvenient operation, and time-consuming procedures. Utility Model Content

[0003] The technical problem this invention aims to solve is that the existing relief valve sealing structure is relatively simple and the sealing effect is not ideal.

[0004] To solve the above problems, the technical solution adopted by this utility model is a quick-sealing component for abnormal air leakage at the exhaust valve port on both sides of a train. It includes a base plate, with C-shaped buckles fixed on one side of the base plate near both sides. A sealing block is provided on the upper side of the base plate, and a fastening bolt is rotatably connected to the lower side of the base plate by a thread. The top of the fastening bolt abuts against the lower side of the sealing block. Limiting rods are fixed on both sides of the sealing block near both ends. A limiting slide is opened on the side of the C-shaped buckle at the limiting rod. The relief valve body is provided between the two C-shaped buckles.

[0005] As a further embodiment of this utility model: connecting bosses are fixed on both sides of the relief valve body, a limiting boss is fixed at one end of the connecting boss, and an exhaust port is opened on the lower side of the relief valve body.

[0006] As a further embodiment of this utility model: a C-shaped buckle is fastened at the connecting boss and is limited by a limiting boss, which facilitates fastening with the relief valve body.

[0007] As a further embodiment of this utility model: a hexagonal head is fixed at the bottom of the fastening bolt to facilitate rotation of the fastening bolt, and a top nut is rotatably connected to the outer thread of the fastening bolt. By rotating the top nut to the underside of the base plate, the fastening bolt is prevented from reversing.

[0008] As a further embodiment of this utility model: the upper side of the sealing block is provided with an arc groove with the same curvature as the lower side of the relief valve body, and a sealing gasket is fixed on one side of the arc groove, which can fit tightly against the relief valve body and improve the sealing performance of the sealing.

[0009] Compared with the prior art, the advantages of this utility model are as follows: This patent adds a structure specifically designed to alleviate valve blockage. The connecting boss is secured by a C-shaped buckle, and the exhaust port is sealed by moving the sealing block. This not only provides a good sealing effect, but also has a simple structure and is quick and convenient to operate. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0011] Figure 1 This is a three-dimensional view of the overall structure of a quick-seal component for mitigating abnormal air leakage at the dual-side exhaust valve of a train, according to the present invention.

[0012] Figure 2 This is a perspective view of the sealing structure in a quick-sealing component for mitigating abnormal air leakage at the dual-side exhaust valve port of a train, according to the present invention.

[0013] Figure 3 This is a perspective view of the relief valve in a quick-seal component for abnormal air leakage at the dual-side exhaust relief valve port of a train, according to the present invention.

[0014] Figure 4 This is a cross-sectional view of the sealing structure in a quick-sealing component for mitigating abnormal air leakage at the dual-side exhaust valve of a train, according to the present invention.

[0015] In the attached image:

[0016] 1. Base plate; 2. C-shaped buckle; 3. Sealing block; 4. Fastening bolt; 5. Limiting rod; 6. Relief valve body; 7. Tightening nut; 2.1. Limiting slide; 3.1. Arc groove; 3.2. Sealing gasket; 4.1. Hexagonal head; 6.1. Connecting boss; 6.2. Limiting boss; 6.3. Exhaust port. Detailed Implementation

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0019] Combined with appendix Figure 1-4 It can be seen that the base plate 1 is included. C-shaped buckles 2 are fixed on one side of the base plate 1 near both sides. A sealing block 3 is provided on the upper side of the base plate 1. An arc groove 3.1 with the same curvature as the lower side of the relief valve body 6 is opened on the upper side of the sealing block 3. A sealing gasket 3.2 is fixed on one side of the arc groove 3.1, which can fit tightly against the relief valve body 6 and improve the sealing performance. A fastening bolt 4 is rotatably connected to the lower side of the base plate 1 by thread. A hexagonal head 4.1 is fixed at the bottom end of the fastening bolt 4 to facilitate the rotation of the fastening bolt 4. A top nut 7 is rotatably connected to the outer side of the fastening bolt 4 by thread. By rotating the top nut 7 to the lower side of the base plate 1, the fastening bolt 4 is prevented from reversing. The top of the fastening bolt 4 abuts against the lower side of the sealing block 3. Limit rods 5 are fixed on both sides of the sealing block 3 near both ends. A limit slide 2.1 is opened on the side of the C-shaped buckle 2 at the limit rod 5. The relief valve body 6 is provided between the two C-shaped buckles 2.

[0020] Both sides of the relief valve body 6 are fixed with connecting bosses 6.1. One end of the connecting boss 6.1 is fixed with a limiting boss 6.2. An exhaust port 6.3 is opened on the lower side of the relief valve body 6. The C-shaped buckle 2 is fastened at the connecting boss 6.1 and is limited by the limiting boss 6.2, so as to facilitate the fastening with the relief valve body 6.

[0021] The working principle of this application is as follows: When sealing the relief valve body 6, firstly, the C-shaped buckle 2 is fastened to the outside of the connecting boss 6.1 and limited by the limiting boss 6.2. Then, the fastening bolt 4 is rotated to move the sealing block 3, so that the arc groove 3.1 gradually fits against one side of the relief valve body 6, so that the sealing gasket 3.2 can seal the exhaust port 6.3. Then, the top nut 7 is rotated to one side of the base plate 1 for fixation, preventing the fastening bolt 4 from reversing.

[0022] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A component for quickly sealing abnormal air leakage at the dual-sided exhaust valve ports of a train, characterized in that: Includes a base plate (1), with C-shaped buckles (2) fixed on one side near both sides of the base plate (1), a sealing block (3) on the upper side of the base plate (1), and a fastening bolt (4) threaded through and rotatably connected to the lower side of the base plate (1). The top of the fastening bolt (4) abuts against the lower side of the sealing block (3). Limit rods (5) are fixed on both sides of the sealing block (3) near both ends. A limit slide (2.1) is opened on the side of the C-shaped buckle (2) at the limit rod (5). A relief valve body (6) is provided between the two C-shaped buckles (2).

2. The rapid sealing component for abnormal air leakage at the dual-sided exhaust valve port of a train according to claim 1, characterized in that: The relief valve body (6) has connecting bosses (6.1) fixed on both sides, and a limiting boss (6.2) is fixed at one end of the connecting boss (6.1). An exhaust port (6.3) is opened on the lower side of the relief valve body (6).

3. A quick-sealing component for abnormal air leakage at the dual-sided exhaust valve port of a train according to claim 1, characterized in that: The C-shaped buckle (2) is fastened to the connecting boss (6.1) and is limited by the limiting boss (6.2).

4. A quick-sealing component for abnormal air leakage at the dual-sided exhaust valve port of a train according to claim 1, characterized in that: The bottom end of the fastening bolt (4) is fixed with a hexagonal head (4.1), and the outer side of the fastening bolt (4) is rotatably connected with a top nut (7).

5. A quick-sealing component for abnormal air leakage at the dual-sided exhaust valve port of a train according to claim 1, characterized in that: The upper side of the sealing block (3) is provided with an arc groove (3.1) with the same curvature as the lower side of the relief valve body (6), and a sealing gasket (3.2) is fixed on one side of the arc groove (3.1).

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