Separable and sealable water feeding connector

Abstract

The utility model belongs to the technical field of water conservancy equipment, and particularly relates to a separable and sealable water feeding connector which is divided into a front end enclasping part, a middle separating part and a water sealing structure part. The specific structure comprises a rubber sleeve, a valve element, an outer steel ring, a positioning ball fixing piece, a first O-shaped ring, a spring positioning ball, a one-way valve element, a middle connecting piece, a sealing gasket, a second O-shaped ring, a spring and a connector base. When the connector is separated, water can be automatically sealed, and safety accidents caused by the fact that water is sprayed to a contact net are avoided. When water enters the water filling nozzle of the train water tank, a part of water enters the cavity of the rubber sleeve to generate pressure on the inner wall, so that the water filling nozzle is tightly held. The separable structure of the connector adopts a spring positioning bead structure, and when the connector is subjected to external force, namely the rubber tube is dragged, a spring in the spring positioning bead is compressed, and the ball shrinks inwards, so that the positioning bead fixing piece is separated from the middle connecting piece.

Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy equipment, and particularly relates to a detachable and sealable water supply joint. Background Art

[0002] The detachable and sealable water supply joint has a simple structure in theory, meets the function of water supply for different types of vehicles, and can complete the water supply operation of various trains very well. Due to the detachability of the joint, it is easy to be dragged off the water injection pipe when encountering a train towing pipe, and is not restricted by the direction of the water pipe. It solves the safety hazards caused by the short stop time of the train, the failure to remove the pipe in time, or the over-tight connection between the water supply pipe and the water injection port, which cannot be separated normally.

[0003] When filling water into the bus, the water supply joint needs to be connected to the water supply hose and the water inlet of the bus to add water to the bus. After the water is added, the water supply joint needs to be unplugged from the water inlet of the bus to complete the water filling process.

[0004] However, in the actual operation process, the water supply personnel often forget to unplug the water supply connector after completing the water supply, resulting in the water supply hose being dragged away by the bus.

[0005] The detachable and sealable water supply joint in the prior art has the following problems and defects:

[0006] Easy to be dragged and fall off: Due to the detachable nature of the joint, if the train is not disconnected in time or the connection is too tight, it is easy to be dragged and fall off when the train starts, causing safety hazards.

[0007] Operators are prone to negligence: After the water supply is completed, the operator may forget to unplug the water supply joint due to negligence, causing the bus to drag away the water supply hose, causing equipment damage and safety accidents.

[0008] It does not mention whether the existing technology can meet the water supply needs of different types of vehicle bodies: the existing technology may not be able to adapt to the water supply needs of different types of vehicle bodies, which limits its scope of application.

[0009] Therefore, it is necessary to design an improved detachable and sealable water supply joint to solve the above problems and improve the safety, reliability and convenience of water supply operations. Utility Model Content

[0010] In view of the problems existing in the prior art, the utility model provides a detachable and sealable water supply joint.

[0011] The utility model is realized in this way, a detachable and sealable water supply joint is divided into a front end holding part, a middle separation part, and a water sealing structure part, and the specific structure includes a rubber sleeve, a valve core, an outer steel ring, a positioning bead fixing part, a first O-ring, a spring positioning bead, a one-way valve core, an intermediate connecting part, a sealing gasket, a second O-ring, a spring, and a joint base;

[0012] When the joint is separated, it can automatically seal the water to prevent water from spraying onto the contact network and causing safety accidents.

[0013] Furthermore, the rubber sleeve is provided with a cavity for containing water. When water enters the cavity, pressure is generated on the inner wall, so that the rubber sleeve tightly holds the water injection port.

[0014] Furthermore, the positioning bead fixing part and the intermediate connecting part are connected via a spring positioning bead. When the joint is subjected to external force, the spring inside the spring positioning bead is compressed and the ball retracts inward, thereby separating the positioning bead fixing part from the intermediate connecting part.

[0015] Furthermore, the one-way valve core abuts against the positioning bead fixing under the action of the spring. When the positioning bead fixing is separated from the intermediate connecting piece, the one-way valve core moves forward under the action of the spring and gets stuck on a circle smaller than one end of the valve core, thereby closing the water flow channel.

[0016] Furthermore, when water enters the water filling port of the train water tank, a portion of the water enters the cavity of the rubber sleeve to generate pressure on the inner wall, thereby holding the water filling port tightly.

[0017] Furthermore, the detachable joint structure adopts a spring positioning bead structure. When the joint is subjected to external force, i.e., the hose is dragged, the spring inside the spring positioning bead is compressed and the ball shrinks inward, thereby separating the positioning bead fixing part from the intermediate connecting part.

[0018] Furthermore, when the joint is intact, one end of the one-way valve core presses against the spring to compress it, and the other end presses against the positioning bead fixing part. When the joint is separated, that is, the positioning bead fixing part is separated from the intermediate connecting part, there is no obstruction at one end of the one-way valve core, and the spring recovers from the compressed state, thereby pushing the one-way valve core forward and getting stuck on a circle smaller than one end of the valve core, so that the incoming water cannot pass through, thereby achieving the purpose of sealing water.

[0019] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the utility model are as follows:

[0020] First, the detachable and sealable water supply joint has a simple structure in theory, which can meet the function of water supply for different types of vehicles and complete the water supply operation of various trains. Because the joint is detachable, it is easy to be dragged off the water injection pipe when encountering a train towing pipe, and is not restricted by the direction of the water pipe. It solves the safety hazards caused by the short stop time of the train, the failure to remove the pipe in time, or the over-tight connection between the water supply pipe and the water injection port, which cannot be separated normally.

[0021] Second, the utility model solves the problems of existing water joints being easily dragged off, operators being easily negligent, and limited applicability. By introducing an automatic disconnection mechanism, it effectively avoids safety hazards caused by not disconnecting the connection in time or connecting too tightly, and improves the safety of water operations.

[0022] In addition, the automatic disconnection mechanism of the utility model also reduces the dependence on the operator, reduces the risk of accidents caused by human negligence, and improves the reliability of water operations.

[0023] At the same time, the utility model adopts a detachable design, so that the joint can automatically fall off when it is dragged, thereby protecting the safety of equipment and personnel and further improving the safety of water operations.

[0024] To sum up, the utility model solves the technical problems existing in the existing water joints through innovative design, achieves significant technical progress such as automatic disconnection, safety and reliability, and wide applicability, and provides a safer and more efficient solution for water supply operations on railway passenger cars. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the embodiments of the utility model. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of a detachable and sealable water supply joint provided by an embodiment of the utility model;

[0027] Figure 2 This is a diagram of the spring positioning bead structure provided by the embodiment of the utility model

[0028] Figure 3 This is a schematic diagram of the installation form of the spring positioning bead provided in the embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of a joint separation state provided by an embodiment of the utility model;

[0030] Figure 5It is a schematic diagram of a spring provided by an embodiment of the utility model;

[0031] Figure 6 It is a schematic diagram of a top bead fixing member provided in an embodiment of the utility model;

[0032] Figure 7 It is a schematic diagram of a top bead provided in an embodiment of the utility model;

[0033] Figure 8 It is a schematic diagram of the valve core provided by the embodiment of the utility model;

[0034] Fig. 9 It is a schematic diagram of a steel ring provided in an embodiment of the utility model;

[0035] Fig.10 It is a schematic diagram of a hose provided by an embodiment of the utility model;

[0036] Fig.11 This is a schematic diagram of a joint valve core provided by an embodiment of the utility model;

[0037] Fig.12 It is a schematic diagram of a joint jacket provided by an embodiment of the utility model;

[0038] Fig.13 It is a schematic diagram of a connection thread provided by an embodiment of the utility model;

[0039] Fig.14 It is a schematic diagram of a rubber connector provided by an embodiment of the utility model;

[0040] Fig.15 It is a schematic diagram of an assembly provided by an embodiment of the utility model;

[0041] In the figure: 1. rubber sleeve; 2. valve core; 3. outer steel ring; 4. positioning bead fixing piece; 5. first O-ring; 6. spring positioning bead; 7. one-way valve core; 8. intermediate connecting piece; 9. sealing gasket; 10. second O-ring; 11. spring; 12. connector base DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0043] In view of the problems existing in the prior art, the utility model provides a detachable and sealable water supply joint, and the utility model is described in detail below in conjunction with the accompanying drawings.

[0044] Separable and sealable water supply joint functional design.

[0045] 1.Hydraulic clamping function

[0046] The hydraulic clamping function uses water pressure to achieve a tight fit between the inner wall of the joint and the water injection port of the train, achieving a clamping effect that prevents them from falling off.

[0047] 2 Separable structure under external force

[0048] When the equipment is without power or due to improper operation or the water supply joint is not detached in time, the water supply joint can be directly separated in the event of dragging to achieve secondary protection.

[0049] 3. The joint has water sealing function after separation.

[0050] When the joint is separated, it can automatically seal the water to prevent water from spraying onto the contact network and causing safety accidents.

[0051] Structural analysis of detachable water supply joint

[0052] It is divided into the front end holding part, the middle separation part and the water sealing structure part. The specific structure includes rubber sleeve, valve core, outer steel ring, positioning bead fixing part, first O-ring, spring positioning bead, one-way valve core, middle connecting part, sealing gasket, second O-ring, spring and joint base.

[0053] When the joint is separated, it can automatically seal the water to prevent water from spraying onto the contact network and causing safety accidents.

[0054] When water enters the water filling port of the train water tank, a part of the water enters the cavity of the rubber sleeve to generate pressure on the inner wall, thereby holding the water filling port tightly.

[0055] The detachable joint structure adopts a spring positioning bead structure. When the joint is subjected to external force, i.e., the hose is dragged, the spring inside the spring positioning bead is compressed and the ball shrinks inward, thereby separating the positioning bead fixing part 4 from the intermediate connecting part 8.

[0056] When the joint is intact, one end of the one-way valve core 7 presses against the spring 11 to compress it, and the other end presses against the positioning bead fixing part 4. When the joint is separated, that is, the positioning bead fixing part 4 is separated from the intermediate connecting part 8, one end of the one-way valve core 7 is not blocked, and the spring 11 recovers from the compressed state, thereby pushing the one-way valve core 7 forward and getting stuck on a circle smaller than one end of the valve core, so that the incoming water cannot pass through, thereby achieving the purpose of sealing water.

[0057] like Figure 1 As shown, the detachable and sealable water supply joint assembly and its working principle.

[0058] Rubber sleeve 1: Located at the outermost layer of the joint, in direct contact with the water inlet of the bus, playing a sealing and buffering role.

[0059] Valve core 2: Located inside the rubber sleeve, it controls the flow of water by moving up and down.

[0060] Outer steel ring 3: It is put on the outside of the rubber sleeve and connected to the joint base through threads to play a fixing and sealing role.

[0061] Positioning bead fixing part 4: fixed on the upper part of the valve core, used for accommodating and fixing the spring positioning bead.

[0062] The first O-ring 5 is located between the positioning bead fixing part and the valve core to play a sealing role.

[0063] Spring positioning bead 6: located in the positioning bead fixing part, cooperates with the valve core of the one-way valve to control the movement of the valve core.

[0064] One-way valve core 7: located below the spring positioning bead, controls water flow to only pass in one direction.

[0065] Intermediate connecting piece 8: connects the valve core and the joint base to transmit water flow.

[0066] Sealing gasket 9: located between the middle connector and the joint base, and plays a sealing role.

[0067] The second O-ring 10 is located between the intermediate connecting piece and the valve core and plays a sealing role.

[0068] Spring 11: Located inside the connector base, it provides a reset force for the valve core.

[0069] Joint base 12: connected to the water supply hose, it is the foundation of the entire joint.

[0070] The rubber sleeve 1 is provided with a cavity for containing water. When water enters the cavity, pressure is generated on the inner wall, so that the rubber sleeve tightly holds the water injection port.

[0071] The positioning bead fixing part 4 and the intermediate connecting part 8 are connected via a spring positioning bead. When the joint is subjected to external force, the spring inside the spring positioning bead 6 is compressed, and the ball retracts inward, so that the positioning bead fixing part is separated from the intermediate connecting part.

[0072] The one-way valve core 7 abuts against the positioning bead fixing part under the action of the spring. When the positioning bead fixing part is separated from the intermediate connecting part, the one-way valve core 7 moves forward under the action of the spring and gets stuck on a circle smaller than one end of the valve core, thereby closing the water flow channel.

[0073] The working principle of the embodiment of the utility model:

[0074] First, connect the joint base 12 to the water supply hose and insert the rubber sleeve 1 into the water inlet of the bus. This step ensures that the water can flow smoothly from the hose through the joint into the water tank of the bus. The design of the rubber sleeve 1 closely matches the water inlet of the bus, ensuring the stability of the connection and preventing water from overflowing.

[0075] During the water adding process, water flows into the intermediate connector 8 through the connector base 12, pushing the one-way valve core 7 to open. The water flows through the valve core 7, the positioning bead fixing part 4 and the rubber sleeve 1, and finally flows into the bus water tank. At this time, the first O-ring 5 and the second O-ring 10 provide double sealing, ensuring that there is no water leakage during the entire connection process, and ensuring the reliability of the water adding process.

[0076] After water is added, due to the drop in water pressure, the spring 11 pushes the valve core 2 upward, and the spring positioning bead 6 is stuck in the groove of the one-way valve core 7, so that the valve core 7 is separated from the intermediate connector 8. At the same time, the spring 11 in the joint base 12 pushes the sealing gasket 9 upward to separate it from the rubber sleeve 1. This design realizes automatic disconnection after water is added through the cooperation of the spring and the positioning bead, avoiding the situation where the connection is not disconnected due to negligence of the operator.

[0077] Since the valve core 7 and the sealing gasket 9 have been separated, the joint will not be dragged even if the bus is started immediately after the water is added. The water supply hose will automatically fall off to prevent equipment damage or safety hazards caused by the joint not being disconnected. This detachable design not only improves the safety of operation, but also ensures the reliability of the connection through the double sealing of the rubber sleeve 1 and the O-rings 5 ​​and 10, preventing the occurrence of water leakage, thereby realizing safe, reliable and convenient water supply operations.

[0078] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0079] The above description is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A detachable and sealable water supply joint, characterized in that: It includes a rubber sleeve, a valve core, an outer steel ring, a positioning bead fixing part, a first O-ring, a spring positioning bead, a one-way valve core, an intermediate connecting part, a sealing gasket, a second O-ring, a spring and a joint base. The rubber sleeve is located at the outermost layer of the joint and is in direct contact with the water filling port of the bus; the valve core is located inside the rubber sleeve and controls the on and off of the water flow by moving up and down; the outer steel ring is sleeved on the outside of the rubber sleeve and is connected to the joint base through a thread; the positioning bead fixing part is fixed to the upper part of the valve core; the first O-ring is located between the positioning bead fixing part and the valve core; the spring positioning bead is located inside the positioning bead fixing part; the one-way valve core is located below the spring positioning bead; the intermediate connecting part connects the valve core and the joint base; the sealing gasket is located between the intermediate connecting part and the joint base; the second O-ring is located between the intermediate connecting part and the valve core; the spring is located inside the joint base; and the joint base is connected to the water supply hose.

2. The detachable and sealable water supply joint according to claim 1, characterized in that: The rubber sleeve is provided with a cavity for containing water. When water enters the cavity, pressure is generated on the inner wall, so that the rubber sleeve tightly holds the water injection port.

3. The detachable and sealable water supply joint according to claim 1, characterized in that: The positioning bead fixing part and the intermediate connecting part are connected via a spring positioning bead. When the joint is subjected to external force, the spring inside the spring positioning bead is compressed, and the ball retracts inward, so that the positioning bead fixing part is separated from the intermediate connecting part.

4. The detachable and sealable water supply joint according to claim 1, characterized in that: The one-way valve core abuts against the positioning bead fixing part under the action of the spring. When the positioning bead fixing part is separated from the intermediate connecting part, the one-way valve core moves forward under the action of the spring and is stuck on a circle smaller than one end of the valve core, thereby closing the water flow channel.

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