Novel water adding connector with one-way valve

Abstract

The utility model relates to a novel water adding connector with a one-way valve, which comprises a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, the first pipeline comprises a pipe body part and a mounting part fixedly arranged in the pipe body part, and the mounting part is provided with a conical mounting cavity; a part of the connecting pipe is inserted into the pipe body part, and the connecting pipe is connected with the pipe body part; the second pipeline is connected with the connecting pipe, and the connecting strength of the second pipeline and the connecting pipe is smaller than that of the connecting pipe and the pipe body part; the one-way valve is fixedly arranged in the connecting pipe and used for conducting a flow path from the second pipeline to the first pipeline in a one-way mode. The connecting strength of the second pipeline and the connecting pipe is smaller than that of the connecting pipe and the pipe body part, so that the joint of the second pipeline and the connecting pipe is broken, and the water adding pipeline and other equipment are prevented from being dragged away by a vehicle together.

Description

Technical Field

[0001] This utility model relates to the field of water connector equipment, and in particular to a novel water supply connector with a one-way valve. Background Technology

[0002] High-speed trains and bullet trains are common modes of transportation. During operation, to meet the water needs of bullet trains, water supply equipment installed along the line is used. This involves connecting a water inlet connector with a water inlet pipe to the bullet train's water tank pipe, and then opening the valve to supply water. However, existing water inlet connectors lack the capability to prevent breakage at specific points. Therefore, if the bullet train starts moving but the water inlet connector is not yet disconnected from the water tank pipe, the train could drag away the connector and water inlet pipe, potentially leading to an accident. Utility Model Content

[0003] The purpose of this utility model is to provide a novel water filling connector with a one-way valve. The novel water filling connector with a one-way valve has the characteristics of breaking under stress and not overflowing water, and has good applicability.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel water supply connector with a one-way valve includes: a first pipe, including a pipe body and a mounting part fixedly disposed within the pipe body, the mounting part having a conical mounting cavity;

[0006] A connecting pipe, part of which is inserted into the pipe body portion and connected to the pipe body portion;

[0007] The second pipe is connected to the connecting pipe, and the connection strength between the second pipe and the connecting pipe is less than the connection strength between the connecting pipe and the pipe body.

[0008] A one-way valve is fixedly installed inside the connecting pipe and is used to guide the flow from the second pipe to the first pipe in one direction.

[0009] Preferably, the connecting pipe includes a plug portion, the outer diameter of which is smaller than the inner diameter of the pipe body portion; along the axial direction of the first pipe, the outer surface of the plug portion is provided with a plurality of fixing portions, the plug portion can be inserted into the pipe body portion, and the fixing portions abut against the inner wall of the pipe body portion.

[0010] Preferably, the connecting pipe further includes a connecting portion integrally formed with the insertion portion, the outer diameter of the connecting portion being larger than the inner diameter of the pipe body portion, and the connecting portion being able to abut against the pipe body portion.

[0011] Preferably, the fixing part is annular, and the outer diameter of the fixing part gradually increases along the axial direction away from the first pipe.

[0012] Preferably, the novel water inlet connector further includes a pressure plate, which is fixed to the second pipe and the connecting pipe;

[0013] The connection strength between the pressure plate and the second pipe is less than the connection strength between the connecting pipe and the pipe body, and / or the connection strength between the pressure plate and the connecting pipe is less than the connection strength between the connecting pipe and the pipe body.

[0014] Preferably, along the axial direction of the first pipe, the diameter of the tapered mounting cavity gradually decreases towards the connecting pipe;

[0015] The inner wall of the conical mounting cavity is provided with multiple friction protrusions and multiple friction grooves at intervals, and the friction protrusions are located on the side of the friction grooves away from the connecting pipe.

[0016] Preferably, the inner diameter of the plug portion is larger than the inner diameter of the connecting portion, and the one-way valve is fixedly disposed inside the plug portion.

[0017] Preferably, a portion of the second pipe is inserted into the connecting part; the outer surface of the second pipe is provided with an installation groove, and the novel water filling connector further includes a sealing ring disposed in the installation groove, the sealing ring being able to abut against the inner wall of the connecting part.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The above-mentioned technical solution provides a novel water filling connector with a one-way valve. The first pipe can be fixed to the train's water tank pipe, and the second pipe can be connected to the inlet pipe. Therefore, water can flow sequentially from the inlet pipe, the second pipe, the connecting pipe, and the first pipe into the train's water tank pipe, thus filling the train with water. When the train starts but the water filling connector is still connected to the train's water tank pipe, the water filling connector is stretched under stress. Since the connection strength between the second pipe and the connecting pipe is less than the connection strength between the connecting pipe and the pipe body, the connection between the second pipe and the connecting pipe will break, thus preventing the water filling pipe and other equipment from being dragged away by the train, thereby preventing accidents and reducing losses. In addition, the first pipe, the connecting pipe, and the one-way valve will move with the train. At this time, the one-way valve can prevent water in the train's water tank from overflowing, thereby reducing water waste. Attached Figure Description

[0020] Figure 1 An exploded view of the novel water inlet connector provided in this embodiment of the utility model;

[0021] Figure 2This is an exploded cross-sectional view of the novel water inlet connector provided in an embodiment of the present invention.

[0022] 1. First pipe; 11. Pipe body; 12. Mounting part; 13. Conical mounting cavity; 14. Friction protrusion ring; 15. Friction groove; 2. Connecting pipe; 21. Insertion part; 22. Fixing part; 23. Connection part; 3. Second pipe; 31. Mounting groove; 4. One-way valve; 5. Pressure plate. Detailed Implementation

[0023] The present invention will now be described in more detail with reference to the accompanying drawings. It should be noted that the description of the present invention with reference to the accompanying drawings is merely illustrative and not restrictive. Various embodiments can be combined with each other to form other embodiments not shown in the following description.

[0024] Please see Figures 1 to 2 The present invention provides a novel water supply connector with a one-way valve, comprising a first pipe 1, a connecting pipe 2, a second pipe 3, a one-way valve 4, and a pressure plate 5.

[0025] Specifically, the first pipe 1 includes a pipe body 11 and a mounting part 12 fixedly disposed within the pipe body 11, the mounting part 12 having a conical mounting cavity 13; a portion of the connecting pipe 2 is inserted into the pipe body 11 and is connected to the pipe body 11; the second pipe 3 is connected to the connecting pipe 2, and the connection strength between the second pipe 3 and the connecting pipe 2 is less than the connection strength between the connecting pipe 2 and the pipe body 11; a one-way valve 4 is fixedly disposed within the connecting pipe 2 and is used to unidirectionally guide the flow path from the second pipe 3 to the first pipe 1.

[0026] This embodiment provides a novel water supply connector with a one-way valve. The mounting part 12 of the first pipe 1 can be fixed to the train's water tank pipe, and the second pipe 3 can be connected to the inlet pipe. Therefore, water can flow sequentially from the inlet pipe, the second pipe 3, the connecting pipe 2, and the first pipe 1 into the train's water tank pipe, thereby supplying water to the train. When the train starts but the water supply connector is still connected to the train's water tank pipe, the water supply connector is stretched under stress. Since the connection strength between the second pipe 3 and the connecting pipe 2 is less than the connection strength between the connecting pipe 2 and the pipe body 11, the connection between the second pipe 3 and the connecting pipe 2 will break, thereby preventing the water supply pipe and other equipment from being dragged away by the train, thus preventing accidents and reducing losses. In addition, the first pipe 1, the connecting pipe 2, and the one-way valve 4 will move with the train. At this time, the one-way valve 4 can prevent water in the train's water tank from overflowing, thereby reducing water waste.

[0027] It is important to note that the connection strength here refers to the ability to detach under a certain load. Specifically, under a certain force, the connection between the second pipe 3 and the connecting pipe 2 is broken, meaning the second pipe 3 and the connecting pipe 2 are disconnected, while the connection between the connecting pipe 2 and the first pipe 1 remains intact, meaning the connecting pipe 2 and the first pipe 1 remain fixedly connected. More specifically, this force is 600N.

[0028] In addition, the first pipe 1, the connecting pipe 2, and the second pipe 3 can be arranged coaxially, so the axial direction of the first pipe 1 is the same as the axial direction of the connecting pipe 2 and the second pipe 3.

[0029] The connecting pipe 2 includes a plug portion 21, the outer diameter of which is smaller than the inner diameter of the pipe body portion 11; along the axial direction of the first pipe 1, a plurality of fixing portions 22 protrude from the outer surface of the plug portion 21, the plug portion 21 can be inserted into the pipe body portion 11, and the fixing portions 22 abut against the inner wall of the pipe body portion 11.

[0030] The fixing part 22 is annular, and its outer diameter gradually increases along the axial direction away from the first pipe 1.

[0031] It is conceivable that the first pipe 1 is hollow inside for water flow, therefore the connecting pipe 2 and the first pipe 1 can be fixed by insertion. Specifically, the insertion part 21 can be inserted into the pipe body part 11. In order to enhance the connection strength between the insertion part 21 and the pipe body part 11, the fixing part 22 can abut tightly against the pipe body part 11, and there is a large friction between the fixing part 22 and the inner wall of the pipe body part 11, thereby enhancing the connection strength between the insertion part 21 and the pipe body part 11.

[0032] It should be clear that the conical mounting cavity 13 can be connected to the water tank pipe of the train, so the conical mounting cavity 13 also serves to supply water flow. Therefore, in order to improve the sealing performance, when the insertion part 21 is inserted into the pipe body part 11, the conical mounting part 12 can be partially inserted into the insertion part 21, and this part of the mounting part 12 can be interference-fitted with the inner wall of the insertion part 21.

[0033] To further enhance the connection strength between the connecting pipe 2 and the pipe body 11, multiple slots can be provided at intervals along the axial direction of the first pipe 1 on the inner wall of the pipe body 11. When the insertion part 21 is inserted into the pipe body 11, each fixing part 22 can be correspondingly locked into each slot, thereby enhancing the connection strength between the connecting pipe 2 and the pipe body 11.

[0034] The connecting pipe 2 also includes a connecting portion 23 integrally formed with the insertion portion 21. The outer diameter of the connecting portion 23 is larger than the inner diameter of the pipe body portion 11, and the connecting portion 23 can abut against the pipe body portion 11. Therefore, when the insertion portion 21 is inserted into the pipe body portion 11, the connecting portion 23 can abut against the end of the pipe body portion 11 near the connecting pipe 2, thereby limiting the axial distance of the insertion portion 21 inserted into the pipe body portion 11.

[0035] The pressure plate 5 is fixed to the second pipe 3, and the pressure plate 5 is fixed to the connecting pipe 2; the connection strength between the pressure plate 5 and the second pipe 3 is less than the connection strength between the connecting pipe 2 and the pipe body 11, and / or, the connection strength between the pressure plate 5 and the connecting pipe 2 is less than the connection strength between the connecting pipe 2 and the pipe body 11.

[0036] Crucially, the second pipe 3 and the connecting pipe 2 are secured together by a clamping plate 5. Specifically, the clamping plate 5 can be secured to the second pipe 3 first, and then to the connecting pipe 2. The securing method is not limited; it can be achieved through snap-fitting, bonding, or fastener connection. When the train starts but the water supply connector is still connected to the train's water tank pipe, the water supply connector is stretched under stress. At this time, the connection between the clamping plate 5 and the second pipe 3, and the connection between the clamping plate 5 and the connecting pipe 2, will break first, thus preventing the water supply pipe and other equipment from being dragged away by the train.

[0037] Along the axial direction of the first pipe 1, the diameter of the tapered mounting cavity 13 gradually decreases towards the connecting pipe 2; the inner wall of the tapered mounting cavity 13 is provided with a plurality of friction protrusions 14 and a plurality of friction grooves 15 at intervals, and the friction protrusions 14 are located on the side of the friction grooves 15 away from the connecting pipe 2.

[0038] It is conceivable that the conical mounting cavity 13 is used to connect with the water tank pipe of the train. Therefore, in order to enhance the connection strength between the train water tank pipe and the inner wall of the conical mounting cavity 13, the diameter of the conical mounting cavity 13 is set to be larger on the outside and smaller on the inside. When the train water tank pipe is gradually inserted into the conical mounting cavity 13, the train water tank pipe gradually shrinks and deforms, thereby tightly abutting against the inner wall of the conical mounting cavity 13.

[0039] To further enhance the connection strength between the train's water tank pipe and the inner wall of the conical mounting cavity 13, without affecting the normal water flow function of the train's water tank pipe, multiple friction protrusions 14 and multiple friction grooves 15 are provided on the inner wall of the conical mounting cavity 13. Specifically, the friction protrusions 14 are located in the larger diameter portion of the conical mounting cavity 13, and the friction grooves 15 are located in the smaller diameter portion of the conical mounting cavity 13. It is conceivable that as the train water tank pipe is gradually inserted into the conical mounting cavity 13, the friction convex ring 14 will force the train water tank pipe to deform radially inward, thereby increasing the friction between the friction convex ring 14 and the train water tank pipe. However, since the friction convex ring 14 is located in the larger diameter part of the conical mounting cavity 13, even if the train water tank pipe in this part shrinks and deforms radially inward, the water flow area of ​​this part of the train water tank pipe is still large enough to meet the water flow requirements. As the train water tank pipe is gradually inserted into the conical mounting cavity 13, the train water tank pipe can deform slightly radially outward, so that part of the train water tank pipe can be stuck in the friction groove 15, thereby enhancing the friction between the friction groove 15 and the train water tank pipe. At the same time, since this part of the train water tank pipe can deform slightly radially outward, the water flow area of ​​this part of the train water tank pipe can be increased, thereby meeting the water flow requirements.

[0040] The friction convex ring 14 and friction groove 15 can enhance the connection strength between the first pipe 1 and the train water tank pipe, thereby making the connection strength between the first pipe 1 and the train water tank pipe greater than the connection strength between the second pipe 3 and the connecting pipe 2. As a result, when the train starts but the water filling connector is still connected to the train water tank pipe, the connection between the second pipe 3 and the connecting pipe 2 will break first.

[0041] The inner diameter of the plug portion 21 is larger than the inner diameter of the connecting portion 23. The one-way valve 4 is fixedly installed inside the plug portion 21. The one-way valve 4 can abut against the step between the plug portion 21 and the connecting portion 23, thereby restricting the axial movement of the one-way valve 4.

[0042] To enhance the sealing between the second pipe 3 and the connecting pipe 2, a portion of the second pipe 3 is inserted into the connecting part 23; the outer surface of the second pipe 3 is provided with an installation groove 31, and the new water supply connector also includes a sealing ring set in the installation groove 31, which can abut against the inner wall of the connecting part 23.

[0043] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A novel water inlet connector with a one-way valve, characterized in that, include: The first pipe (1) includes a pipe body (11) and a mounting part (12) fixedly disposed in the pipe body (11), the mounting part (12) having a conical mounting cavity (13); A connecting pipe (2) is partially inserted into the pipe body (11), and the connecting pipe (2) is connected to the pipe body (11). The second pipe (3) is connected to the connecting pipe (2), and the connection strength between the second pipe (3) and the connecting pipe (2) is less than the connection strength between the connecting pipe (2) and the pipe body (11). A one-way valve (4) is fixedly installed inside the connecting pipe (2) and is used to unidirectionally guide the flow path from the second pipe (3) to the first pipe (1).

2. The novel water inlet connector with a one-way valve as described in claim 1, characterized in that, The connecting pipe (2) includes a plug-in part (21), the outer diameter of which is smaller than the inner diameter of the pipe body part (11); along the axial direction of the first pipe (1), a plurality of fixing parts (22) protrude from the outer surface of the plug-in part (21), the plug-in part (21) can be inserted into the pipe body part (11), and the fixing parts (22) abut against the inner wall of the pipe body part (11).

3. The novel water inlet connector with a one-way valve as described in claim 2, characterized in that, The connecting tube (2) also includes a connecting part (23) integrally formed with the insertion part (21). The outer diameter of the connecting part (23) is larger than the inner diameter of the tube body part (11), and the connecting part (23) can abut against the tube body part (11).

4. The novel water inlet connector with a one-way valve as described in claim 2, characterized in that, The fixing part (22) is annular, and its outer diameter gradually increases along the axial direction away from the first pipe (1).

5. The novel water inlet connector with a one-way valve as described in claim 1, characterized in that, The new water supply connector also includes a pressure plate (5), which is fixed to the second pipe (3) and the connecting pipe (2); The connection strength between the pressure plate (5) and the second pipe (3) is less than the connection strength between the connecting pipe (2) and the pipe body (11), and / or, the connection strength between the pressure plate (5) and the connecting pipe (2) is less than the connection strength between the connecting pipe (2) and the pipe body (11).

6. The novel water inlet connector with a one-way valve as described in claim 1, characterized in that, Along the axial direction of the first pipe (1), the diameter of the tapered mounting cavity (13) gradually decreases in the direction toward the connecting pipe (2); The inner wall of the conical mounting cavity (13) is provided with a plurality of friction protrusions (14) and a plurality of friction grooves (15) at intervals, and the friction protrusions (14) are located on the side of the friction grooves (15) away from the connecting pipe (2).

7. The novel water inlet connector with a one-way valve as described in claim 3, characterized in that, The inner diameter of the plug part (21) is larger than the inner diameter of the connecting part (23), and the one-way valve (4) is fixedly installed inside the plug part (21).

8. The novel water inlet connector with a one-way valve as described in claim 3, characterized in that, Part of the second pipe (3) is inserted into the connecting part (23); the outer surface of the second pipe (3) is provided with an installation groove (31), and the new water supply connector also includes a sealing ring provided in the installation groove (31), the sealing ring being able to abut against the inner wall of the connecting part (23).

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