Valve pipe fitting

Abstract

The utility model relates to the technical field of valve pipe fittings, in particular to a valve pipe fitting which comprises a valve body used for controlling on-off of water flow. The pipe fitting body is connected to the two ends of the valve body, and the pipe fitting body is connected with an external pipeline; the limiting assembly is arranged between the valve body and the pipe fitting body and used for quickly connecting the valve body and the pipe fitting body; external connectors are arranged at the two ends of the valve body, the limiting assembly comprises a sliding sleeve capable of sliding on the pipe fitting body, a plurality of limiting grooves are formed in the position, close to the valve body, of the sliding sleeve, and limiting blocks capable of being matched with the limiting grooves are further arranged on the inner walls of the external connectors. One end of the sliding sleeve can be inserted into the external connector, and the limiting block can be clamped in the limiting groove. A traditional screw and nut structure is replaced by the limiting assembly, so that the valve and the pipe fitting are rapidly disassembled and assembled.

Description

Technical Field

[0001] This utility model relates to the field of valve and pipe fitting technology, specifically to a valve and pipe fitting. Background Technology

[0002] Valves are control components in fluid transport systems, used to control the flow direction, pressure, and flow rate of fluids (liquids, gases, semi-fluids, etc.). They have functions such as shutting off, regulating, guiding, preventing backflow, stabilizing pressure, diverting flow, or overflowing and relieving pressure. Valve fittings are generally installed at both ends of the valve and are connected to external pipelines through valve fittings.

[0003] Chinese patent CN220727480U discloses a detachable valve fitting, including a valve fitting with first connecting pipes on both sides. One side of each first connecting pipe is connected to a second connecting pipe. The second connecting pipe is locked to the first connecting pipe by rotation, and the first and second connecting pipes seal against each other after connection, preventing leakage at the connection point. This prior art, by inserting a connecting pipe into the main pipe and rotating it, causes a slider to slide into one end of a fixing groove, thus fixing the connecting pipe to the main pipe. At this time, the outer shell of the connecting pipe enters the sealing shell, and one end of the main pipe enters the sealing cavity, achieving a multi-layered sealing effect at the connection point between the connecting pipe and the main pipe. This not only facilitates overall assembly and disassembly but also prevents leakage.

[0004] In this existing technology, the connecting pipe is inserted into the main pipe, and rotating the connecting pipe causes the slider to slide into one end of the fixing groove, thereby fixing the connecting pipe to the main pipe. However, the connection and fixing between the pipe and the valve currently mainly relies on the cooperation of screws and nuts. Although this method of fixing with screws and nuts can ensure the stability of the pipe-valve connection to a certain extent, it has obvious drawbacks when it is necessary to disassemble, repair, or replace related parts. Due to the tightening characteristics of screws and nuts, the disassembly process must be completed with special tools. This not only increases the complexity and time cost of disassembly operations, but also makes disassembly impossible without special tools, greatly limiting the flexibility and convenience of valve fittings in practical applications and causing many inconveniences for maintenance and repair work. Utility Model Content

[0005] The purpose of this utility model is to provide a valve fitting that uses a limiting component to replace the traditional screw and nut structure, enabling the valve and fitting to be quickly disassembled and installed.

[0006] To address the problems of existing technologies, this utility model provides a valve fitting, including a valve body for controlling the flow of water; a fitting body connected to both ends of the valve body and connected to an external pipe; and a limiting assembly disposed between the valve body and the fitting body for quick connection between them. The valve body has external interfaces at both ends, and the limiting assembly includes a sliding sleeve that can slide on the fitting body. The sliding sleeve has several limiting grooves near the valve body, and the inner wall of the external interface has limiting blocks that cooperate with the limiting grooves. When the valve body and the fitting body are connected, one end of the sliding sleeve can be inserted into the external interface, and the limiting block can be engaged in the limiting groove.

[0007] Preferably, the pipe fitting body is provided with at least two limiting posts near the valve body, and the inner ring of the external interface is provided with an inner ring, and the inner ring is also provided with a slot that can cooperate with the limiting posts. When the inner ring is inserted into the external interface, one end of the pipe fitting body can be inserted into the inner ring, and the limiting post can be rotated into the slot.

[0008] Preferably, the slot is L-shaped and the end of the slot is arc-shaped. After the pipe body and the valve body are connected, the limiting post can be locked in the arc-shaped structure of the slot.

[0009] Preferably, at least two sealing rings are provided at the joint between the pipe body and the inner ring for sealing.

[0010] Preferably, the pipe body is further provided with a limiting ring, the sliding sleeve is further provided with a stop, and the pipe body is further provided with a spring, one end of the spring being connected to the limiting ring and the other end of the spring being connected to the stop.

[0011] Preferably, the pipe fitting body is provided with several sliding grooves near the valve body, and the inner wall of the stop is provided with a slider that can slide and cooperate with the sliding grooves.

[0012] The advantages of this utility model compared to the prior art are:

[0013] In this application, the valve body has external interfaces at both ends. Several limiting blocks are distributed on the inner wall of the external interfaces. A limiting groove is provided on the outside of the sliding sleeve, which can be inserted into the external interface. When the limiting groove is inserted into the external interface, the limiting block is inserted into the limiting groove to achieve a limiting position, preventing relative rotation between the valve body and the fitting body, thereby preventing the limiting pin from dislodging from the slot. Furthermore, a spring is fitted on the fitting body, providing elastic force to the sliding sleeve to ensure that the limiting block is always inserted into the limiting groove. Simultaneously, the cooperation between the slider and the groove prevents the sliding sleeve from rotating. Attached Figure Description

[0014] Figure 1This is a first three-dimensional structural diagram of a valve fitting according to this utility model.

[0015] Figure 2 This is a front view structural diagram of a valve fitting according to this utility model.

[0016] Figure 3 This is a first exploded structural diagram of a valve fitting according to this utility model.

[0017] Figure 4 This is a second exploded view of a valve fitting according to this utility model.

[0018] Figure 5 This is a schematic diagram of the internal structure of the external interface of a valve fitting according to this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of a valve fitting limiting component according to this utility model.

[0020] The following are the labels in the diagram: 1. Valve body; 11. External interface; 111. Limiting block; 12. Inner ring; 121. Slot; 2. Fitting body; 21. Limiting ring; 22. Limiting post; 23. Sealing ring; 24. Slide groove; 25. Spring; 3. Limiting assembly; 31. Sliding sleeve; 311. Stop; 3111. Sliding block; 312. Limiting groove. Detailed Implementation

[0021] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0022] Reference Figures 1-6 As shown, this utility model provides a valve fitting, including a valve body 1 for controlling the flow of water; a fitting body 2 connected to both ends of the valve body 1 and connected to an external pipe; and a limiting component 3 disposed between the valve body 1 and the fitting body 2 for quick connection of the valve body 1 and the fitting body 2. External interfaces 11 are provided at both ends of the valve body 1. The limiting component 3 includes a sliding sleeve 31 that can slide on the fitting body 2. Several limiting grooves 312 are provided on the sliding sleeve 31 near the valve body 1. A limiting block 111 that can cooperate with the limiting grooves 312 is also provided on the inner wall of the external interface 11. When the valve body 1 and the fitting body 2 are connected, one end of the sliding sleeve 31 can be inserted into the external interface 11, and the limiting block 111 can be locked in the limiting groove 312.

[0023] The valve body 1 and the pipe fitting body 2 are connected so that one end of the sliding sleeve 31 can be inserted into the external interfaces 11 at both ends of the valve body 1. The inner wall of the external interface 11 is provided with a limiting block 111 that can cooperate with the limiting groove 312. During the insertion of the sliding sleeve 31 into the external interface 11, when the sliding sleeve 31 reaches the appropriate position, the limiting block 111 can be locked in the limiting groove 312. This locking structure keeps the valve body 1 and the pipe fitting body 2 relatively fixed, preventing easy relative movement or separation.

[0024] The pipe body 2 is provided with at least two limiting posts 22 near the valve body 1. The external interface 11 is provided with an inner ring 12, and the inner ring 12 is also provided with a slot 121 that can cooperate with the limiting posts 22. When the inner ring 12 is inserted into the external interface 11, one end of the pipe body 2 can be inserted into the inner ring 12, and the limiting posts 22 can be rotated and inserted into the slot 121.

[0025] Insert one end of the pipe fitting body 2 toward the external interface 11 of the valve body 1. Simultaneously, the inner ring 12 in the external interface 11 provides a guide for the insertion of the pipe fitting body 2, allowing it to be inserted relatively accurately into the inner ring 12. During the insertion of the pipe fitting body 2 into the inner ring 12, the limiting post 22 on the pipe fitting body 2 aligns with the slot 121 on the inner ring 12. At this time, by rotating the pipe fitting body 2, the limiting post 22 can be rotated and inserted into the slot 121. Once the limiting post 22 is fully inserted into the slot 121, the pipe fitting body 2 and the valve body 1 are further fixed, restricting not only their relative axial movement but also preventing relative rotation, thereby greatly improving the overall robustness and stability of the valve fitting connection.

[0026] The slot 121 is L-shaped, with an arc-shaped end. After the pipe body 2 and valve body 1 are connected, the limiting post 22 can be locked in the arc-shaped structure of the slot 121. The L-shaped design of the slot 121 has unique guiding and limiting functions. The L-shaped slot 121 consists of a relatively straight guide section and a limiting section perpendicular to the guide section. The guide section facilitates the smooth entry of the limiting post 22, while the limiting section is used to fix the limiting post 22.

[0027] When the fitting body 2 is inserted into the external interface 11 of the valve body 1 and enters the inner ring 12, the limiting post 22 on the fitting body 2 will first move along the guide section of the "L"-shaped groove 121. The guide section provides a clear insertion direction for the limiting post 22. As the fitting body 2 continues to be inserted, when the limiting post 22 reaches the end of the guide section, by rotating the fitting body 2, the limiting post 22 will enter the limiting section of the groove 121 along the turning direction of the "L". The existence of the limiting section restricts the radial and axial movement of the limiting post 22, thus initially fixing the fitting body 2 and the valve body 1 in the connection direction.

[0028] At least two sealing rings 23 are provided at the joint between the pipe body 2 and the inner ring 12 for sealing. The provision of at least two sealing rings 23 further enhances the reliability of the seal. Even if one sealing ring 23 experiences a decline in sealing performance due to long-term use or accidental damage, the other sealing ring 23 can still continue to perform its sealing function to prevent water leakage, thereby improving the overall sealing performance and service life of the valve fitting.

[0029] The pipe fitting body 2 is also provided with a limit ring 21, and the sliding sleeve 31 is also provided with a stop 311. The pipe fitting body 2 is also fitted with a spring 25, one end of which is connected to the limit ring 21, and the other end of which is connected to the stop 311. Several sliding grooves 24 are also provided on the pipe fitting body 2 near the valve body 1, and the inner wall of the stop 311 is also provided with a slider 3111 that can slide and cooperate with the sliding grooves 24.

[0030] When the valve body 1 and the pipe fitting body 2 are not connected or are in an initial separated state, the spring 25 is in a certain initial state. When it is necessary to connect the valve body 1 and the pipe fitting body 2, the sliding sleeve 31 moves. During the movement of the sliding sleeve 31, the spring 25 is further compressed, generating a spring force opposite to the pushing direction. After the valve body 1 and the pipe fitting body 2 are connected, the spring 25 is still in a compressed state. Its spring force acts on the sliding sleeve 31 through the stop 311, so that the sliding sleeve 31 always maintains a tight contact with the external interface 11 of the valve body 1, ensuring that the limit block 111 is stably locked in the limit groove 312, preventing the two from being accidentally separated due to external force.

[0031] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A valve fitting, characterized in that: include The valve body (1) is used to control the flow of water. The fitting body (2) is connected to both ends of the valve body (1), and the fitting body (2) is connected to an external pipeline; A limiting component (3) is provided between the valve body (1) and the pipe fitting body (2) for quick connection of the valve body (1) and the pipe fitting body (2). The valve body (1) has external interfaces (11) at both ends. The limiting component (3) includes a sliding sleeve (31) that can slide on the pipe body (2). The sliding sleeve (31) has several limiting grooves (312) near the valve body (1). The inner wall of the external interface (11) also has a limiting block (111) that can cooperate with the limiting groove (312). When the valve body (1) and the pipe body (2) are connected, one end of the sliding sleeve (31) can be inserted into the external interface (11), and the limiting block (111) can be locked in the limiting groove (312).

2. A valve fitting according to claim 1, characterized in that: The pipe body (2) is provided with at least two limiting posts (22) near the valve body (1). The external interface (11) is provided with an inner ring (12), and the inner ring (12) is also provided with a slot (121) that can cooperate with the limiting posts (22). When the inner ring (12) is inserted into the external interface (11), one end of the pipe body (2) can be inserted into the inner ring (12), and the limiting posts (22) can be rotated into the slot (121).

3. A valve fitting according to claim 2, characterized in that: The slot (121) is "L" shaped and the end of the slot (121) is arc-shaped. After the pipe body (2) and the valve body (1) are connected, the limiting post (22) can be locked in the arc-shaped structure of the slot (121).

4. A valve fitting according to claim 3, characterized in that: At least two sealing rings (23) are provided at the joint between the pipe body (2) and the inner ring (12) for sealing.

5. A valve fitting according to claim 1, characterized in that: The pipe body (2) is also provided with a limiting ring (21), the sliding sleeve (31) is also provided with a stop (311), and the pipe body (2) is also provided with a spring (25). One end of the spring (25) is connected to the limiting ring (21), and the other end of the spring (25) is connected to the stop (311).

6. A valve fitting according to claim 5, characterized in that: The pipe fitting body (2) is provided with several sliding grooves (24) near the valve body (1), and the inner wall of the stop (311) is provided with a slider (3111) that can slide and cooperate with the sliding grooves (24).

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