Self-hoisting and self-lowering pipe head
The self-locking and self-detaching water inlet connector uses a combination of rubber posts and stainless steel nuts to dynamically adjust water pressure, solving the problems of leakage and unstable connection caused by water pressure fluctuations. It achieves automated, reliable sealing and stable connection, improving the efficiency and safety of fluid transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TENGZHOU EURASIA MASCH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-14
AI Technical Summary
Existing water pipe connection devices are prone to insufficient clamping force or poor sealing when water pressure fluctuates, resulting in water leakage and unstable connection, which affects the efficiency and safety of fluid transportation, especially in scenarios with frequent water pressure changes.
The self-clamping and self-detaching water inlet pipe head uses the elastic contraction of the rubber column and the mechanical clamping structure of the stainless steel nut, combined with the limit spring and reset assembly, to achieve dynamic adjustment of water flow pressure and automatic disconnection, ensuring sealing and stable connection.
It achieves reliable sealing and stable connection under water pressure changes, preventing water leakage, and can automatically disconnect after the water supply operation is completed, without manual operation, thus improving the efficiency and safety of fluid transportation.
Smart Images

Figure CN224497900U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water supply pipe head technology, and in particular to a self-clamping and self-detaching water supply pipe head. Background Technology
[0002] A water inlet connector is a connection device used in the field of fluid transportation. It is mainly used to connect and disconnect water pipes from external water injection components and is widely applicable to scenarios such as train water supply, municipal water supply, and industrial fluid transportation. Its core requirement is to maintain a stable connection during water flow and prevent leakage. As the requirements for automation and reliability in fluid transportation scenarios increase, higher demands are placed on the structural stability, sealing performance, and ease of operation of this type of device.
[0003] Currently, most common water pipe connection devices adopt a single clamping structure, such as using a pure rubber sleeve to wrap around the external connector based on its own elasticity, or using a metal clamp for manual locking to achieve the connection. The technical principle mainly relies on the friction of the rubber or the mechanical pressure of the clamp to maintain the seal. When water is flowing, the rubber sleeve needs to be manually put onto the external connector and the clamp needs to be manually tightened. After the water is stopped, the clamp needs to be loosened in reverse to achieve separation.
[0004] However, in existing technologies, the pure rubber sleeve structure is limited by the elasticity of the material, and is prone to insufficient clamping force when water pressure fluctuates, resulting in gaps between the external component and the rubber sleeve. Although metal clamps can provide mechanical force, uneven tightening force during manual operation can easily lead to localized sealing problems. Neither of these structures can maintain a stable seal throughout the water flow process, and both generally suffer from problems such as easy leakage at the connection and poor clamping stability. These problems are particularly prominent in scenarios with frequent water pressure changes, seriously affecting the efficiency and safety of fluid transportation. Therefore, a self-clamping and self-detaching water inlet pipe head is proposed to solve these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a self-clamping and self-detaching water supply pipe head, which aims to improve the problems of easy leakage and poor clamping stability of existing connections.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] The self-clamping and self-detaching water inlet pipe includes a rubber column, a connecting component is provided above the rubber column, and a water pressure regulating component is provided below the connecting component;
[0008] The water pressure regulating component includes a water-saving pipe. A second external threaded groove is formed at the bottom of the outer wall of the water-saving pipe, which is threadedly connected to the inner wall of the rubber column. The upper part of the outer wall of the water-saving pipe is slidably connected inside the connecting component. Symmetrical water control holes are formed on the upper part of the outer wall of the water-saving pipe. A first connecting rod is rotatably connected to the upper part of the inner wall of the water-saving pipe. A water-blocking plate is positioned below the first connecting rod. A connecting seat is fixedly connected to the bottom of the water-blocking plate. A second connecting rod is fixedly connected inside the connecting seat. Both ends of the second connecting rod are rotatably connected to the inner wall of the water-saving pipe. A reset component is positioned between the first connecting rod and the water-blocking plate.
[0009] As a further description of the above technical solution:
[0010] The reset assembly includes a spring seat, which is slidably connected to the outer wall of the connecting rod. A limit spring is provided between the spring seat and the water blocking plate. One end of the limit spring is fixedly connected to the bottom of the spring seat, and the other end of the limit spring is fixedly connected to the top side of the water blocking plate.
[0011] As a further description of the above technical solution:
[0012] The connecting assembly includes a stainless steel nut, the outer wall of which has multiple fitting grooves arranged in an array, and the outer wall of the stainless steel nut is fitted into the upper part of the rubber column.
[0013] As a further description of the above technical solution:
[0014] The stainless steel nut has an external threaded groove fixedly connected to its top, and a washer is threadedly connected to the outer wall of the external threaded groove. Both the external threaded groove and the washer are located above the stainless steel nut.
[0015] As a further description of the above technical solution:
[0016] The stainless steel nut has screw holes on both the left and right sides, and the screw holes are used to fix the water-saving pipe inside the stainless steel nut.
[0017] As a further description of the above technical solution:
[0018] The rubber column has an internal threaded groove at its lower interior, which is used to connect a water pipe.
[0019] As a further description of the above technical solution:
[0020] The outer wall of the rubber column is provided with multiple clamping grooves, which are arranged in an array and are used to accommodate clamps.
[0021] This utility model has the following beneficial effects:
[0022] In this invention, during water supply operations, water flows in through the inlet end, passes through the water pipe and water control hole, and impacts the water-blocking plate. The water-blocking plate dynamically adjusts its position and controls the pressure using the elasticity of the limiting spring. The rubber column elastically contracts and clamps the external component. The stainless steel nut and threaded structure convert water pressure into mechanical force to enhance the clamping. The fitting groove stabilizes the position of the component, solving the problems of easy leakage and unstable clamping in traditional connections, and achieving reliable sealing and stable water supply. Attached Figure Description
[0023] Figure 1 This is a three-dimensional schematic diagram of the self-clamping and self-detaching water pipe head proposed in this utility model;
[0024] Figure 2 This is a cross-sectional view of the rubber column structure of the self-clamping and self-detaching water pipe head proposed in this utility model.
[0025] Figure 3 An exploded view of the rubber column structure of the self-clamping and self-detaching water pipe head proposed in this utility model;
[0026] Figure 4 This is a schematic diagram of the stainless steel nut structure of the self-clamping and self-detaching water supply pipe head proposed in this utility model.
[0027] Figure 5 This is a cross-sectional view of the water-saving pipe structure of the self-clamping and self-detaching water inlet pipe head proposed in this utility model.
[0028] Legend:
[0029] 1. Rubber column; 2. Clamp groove; 3. Stainless steel nut; 4. External thread groove one; 5. Washer; 6. Fitting groove; 7. Screw hole; 8. Internal thread groove; 9. Water-saving pipe; 10. Water control hole; 11. External thread groove two; 12. Connecting rod one; 13. Connecting rod two; 14. Connecting seat; 15. Water-blocking plate; 16. Spring seat; 17. Limiting spring. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figures 1-5One embodiment of this utility model is a self-clamping and self-detaching water inlet pipe head, including a rubber column 1. The rubber column 1 is made of nitrile rubber, which has good elasticity and oil resistance. It is used to fit with external water inlet nozzles and other components to achieve a tight seal. The connecting component above the rubber column 1 is used to connect to the external pipeline and fix the water pressure regulating component. The water pressure regulating component below is used to control the water pressure and flow rate.
[0032] The water-saving pipe 9 of the water pressure regulating component is made of 304 stainless steel. The inner wall is polished to reduce water flow resistance. An external threaded groove 11 is opened at the bottom of the outer wall. The external threaded groove 11 engages with the internal thread of the inner wall of the rubber column 1 to achieve a fixed connection between the water-saving pipe 9 and the rubber column 1. The upper part of the outer wall of the water-saving pipe 9 forms a sliding fit with the inside of the connecting component. Symmetrical water control holes 10 are opened on the upper part of the outer wall. The water control holes 10 are used to guide the water flow in the water-saving pipe 9 into the internal passage of the water supply pipe head. The upper part of the inner wall of the water-saving pipe 9 is rotatably connected to the connecting rod 12 via a bearing. The connecting rod 12 is made of 45# steel and is used to install the reset component and transmit force. The water-blocking plate 15 below the connecting rod 12 is made of stainless steel and is circular. It is used to adjust the size of the water flow channel by changing its own position. To control water pressure, a fixed connecting seat 14 is welded to the bottom of the water-blocking plate 15. The connecting seat 14 is made of 45# steel and is internally fixed to the connecting rod 13 via a pin. Both ends of the connecting rod 13 are rotatably connected to the inner wall of the water-saving pipe 9 via bearings, providing a fulcrum for the rotation of the water-blocking plate 15. A reset assembly between the connecting rod 12 and the water-blocking plate 15 is used to reset the water-blocking plate 15. The spring seat 16 of the reset assembly is made of 304 stainless steel and is slidably connected to the outer wall of the connecting rod 12, allowing it to slide along the connecting rod 12. The limiting spring 17 between the spring seat 16 and the water-blocking plate 15 is made of spring steel, with one end welded to the bottom of the spring seat 16 and the other end welded to one side of the top of the water-blocking plate 15, providing elastic support for the water-blocking plate 15 so that the water-blocking plate 15 can dynamically adjust its position.
[0033] The stainless steel nut 3 of the connecting component is made of 304 stainless steel, which is high in strength and corrosion resistant. Multiple matching grooves 6 are arranged in an array on the outer wall. The matching grooves 6 are used to enhance the connection strength with the rubber column 1 and prevent loosening. The outer wall of the stainless steel nut 3 is fitted into the upper part of the rubber column 1. The top is welded to fix the external thread groove 4. The external thread of the outer wall of the external thread groove 4 matches the internal thread of the inner wall of the gasket 5. The gasket 5 is made of 304 stainless steel and is used to seal the connection between the stainless steel nut 3 and the external pipeline to prevent water leakage. Screw holes 7 are opened on the left and right sides of the stainless steel nut 3. Bolts can be installed in the screw holes 7 to fix the water-saving pipe 9 inside the stainless steel nut 3 and limit the sliding range of the water-saving pipe 9. An internal thread groove 8 is opened at the lower part of the inside of the rubber column 1. The internal thread groove 8 matches the external thread of the water pipe and is used to connect the water pipe to introduce water flow. Multiple clamp grooves 2 are arranged in an array on the outer wall of the rubber column 1. The clamp grooves 2 are used to accommodate clamps and enhance the clamping force of the rubber column 1 on the external components.
[0034] Working principle: When water is supplied, the water flows in from the inlet end, passes through the water-saving pipe 9 and the water control hole 10 in sequence, and enters the internal passage of the water supply pipe head. The water flow impacts the water-blocking plate 15. At this time, the water-blocking plate 15 is provided with elastic support by the limiting spring 17, which allows it to dynamically adjust its position and accurately control the water pressure. Within the preset effective water pressure range, the rubber column 1, relying on the elastic properties of its rubber material, contracts and deforms towards the center, tightly gripping the external water inlet and other components. At the same time, the threaded connection structure of the stainless steel nut 3 with the external thread groove 4 and external thread groove 11 converts the water pressure into mechanical clamping force, which helps to enhance the clamping effect. The fitting groove 6 and other structures ensure that each component maintains a stable relative position under pressure, achieving a reliable and continuous clamping state, ensuring the stable operation of the water supply process, and effectively preventing water leakage.
[0035] After water supply is completed and the water flow is stopped, the water pressure inside the water supply pipe head gradually decreases. Under the rebound force of the limit spring 17, the water baffle 15 returns to its initial position, and the water pressure on the rubber column 1 disappears. The rubber column 1 gradually recovers its deformation due to the elasticity of its own rubber material, and the clamping force continues to decrease. When the clamping force is less than the slight external tension, the clamp in the clamp groove 2 is released. The connection force between the water supply pipe head and the external component cannot be maintained, thus realizing the automatic detachment action and completing the entire self-clamping and self-detaching process. There is no need for manual forced disassembly, which protects the equipment structure and can adapt to different water supply scenarios.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A self-clamping and self-detaching water supply pipe head, comprising a rubber column (1), characterized in that: A connecting component is provided above the rubber column (1), and a water pressure regulating component is provided below the connecting component; The water pressure regulating component includes a water-saving pipe (9), with an external threaded groove (11) at the bottom of the outer wall of the water-saving pipe (9). The external threaded groove (11) is threadedly connected to the inner wall of the rubber column (1). The upper part of the outer wall of the water-saving pipe (9) is slidably connected inside the connecting component. The upper part of the outer wall of the water-saving pipe (9) has symmetrical water control holes (10). The upper part of the inner wall of the water-saving pipe (9) is rotatably connected to a connecting rod (12). A water-blocking plate (15) is provided below the connecting rod (12). A connecting seat (14) is fixedly connected to the bottom of the water-blocking plate (15). A connecting rod (13) is fixedly connected inside the connecting seat (14). The two ends of the connecting rod (13) are rotatably connected to the inner wall of the water-saving pipe (9). A reset component is provided between the connecting rod (12) and the water-blocking plate (15).
2. The self-clamping and self-detaching water supply pipe head according to claim 1, characterized in that: The reset assembly includes a spring seat (16), which is slidably connected to the outer wall of the connecting rod (12). A limit spring (17) is provided between the spring seat (16) and the water blocking plate (15). One end of the limit spring (17) is fixedly connected to the bottom of the spring seat (16), and the other end of the limit spring (17) is fixedly connected to the top side of the water blocking plate (15).
3. The self-clamping and self-detaching water supply pipe head according to claim 1, characterized in that: The connecting component includes a stainless steel nut (3), the outer wall of which has a plurality of fitting grooves (6) arranged in an array, and the outer wall of the stainless steel nut (3) is fitted into the upper part of the rubber column (1).
4. The self-clamping and self-detaching water supply pipe head according to claim 3, characterized in that: The stainless steel nut (3) is fixedly connected to the top of the external thread groove (4), and the outer wall of the external thread groove (4) is threaded with a washer (5). The external thread groove (4) and the washer (5) are both located above the stainless steel nut (3).
5. The self-clamping and self-detaching water supply pipe head according to claim 4, characterized in that: The stainless steel nut (3) has screw holes (7) on both the left and right sides. The screw holes (7) are used to fix the water-saving pipe (9) inside the stainless steel nut (3).
6. The self-clamping and self-detaching water supply pipe head according to claim 1, characterized in that: The rubber column (1) has an internal thread groove (8) at its lower interior, which is used to connect a water pipe.
7. The self-clamping and self-detaching water supply pipe head according to claim 6, characterized in that: The outer wall of the rubber column (1) is provided with multiple clamping grooves (2), which are arranged in an array and are used to accommodate clamps.