Plastic pipe valve with anti-dropping structure

Abstract

The utility model relates to valve technical field especially has a kind of plastic pipe valve with anti -drop structure, including valve body, the butt joint end of both ends of valve body is provided, the upper end of valve body is integrally formed with the mounting end of upward protruding, knob is cooperatively provided on mounting end, and the lower end of knob is butt joint with valve core;Adjusting abutting member, the adjusting abutting member is set outside mounting end;Connecting pipe, the connecting pipe is fixedly arranged on the outside of water pipe, a plurality of slots are evenly arranged on the connecting pipe;The utility model is connected by sleeve to the butt joint of connecting pipe end portion in use respectively setting butt joint end and connecting pipe, provides a locking force, simultaneously, through the butt joint of abutting end and abutting ring, keep connection positioning and realize sealing, avoid the phenomenon of accidental drop of pipeline from the receiving port due to abnormal pressure rise of system.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a plastic tube valve with an anti-detachment structure. Background Technology

[0002] Valves, as a key control element, are widely used in many fields such as agricultural irrigation, landscaping, building water supply and drainage, and industrial cooling water circulation. There are various connection methods between plastic pipe valves and pipelines on the market, the most common being threaded connections, flange connections, press-fit connections, and socket connections. For soft or semi-rigid plastic pipes, socket connections with a sealing ring are a relatively common connection method. This connection method is simple to install, requiring no special tools; assembly can be achieved quickly by directly inserting the pipe into the valve's socket.

[0003] Existing socket-type plastic pipe valves have insufficient anti-detachment capability in actual use. When the fluid pressure in the pipeline fluctuates drastically and produces a water hammer effect, or when the system pressure rises abnormally for some reason, the inner wall of the pipeline will be subjected to a huge radial expansion force and axial thrust. This axial thrust will act on the mating point between the pipeline and the valve socket, which can easily cause the pipeline to accidentally detach from the socket.

[0004] Therefore, a plastic tube valve with an anti-detachment structure is needed to improve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a plastic pipe valve with an anti-detachment structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A plastic tube valve with an anti-detachment structure includes:

[0008] The valve body has mating ends at both ends, and an upwardly protruding mounting end is integrally formed on the upper end of the valve body. A knob is fitted on the mounting end, and a valve core is mated at the lower end of the knob.

[0009] An adjusting abutment is provided on the outside of the mounting end;

[0010] A connecting pipe is fixedly installed on the outside of the water pipe, and a number of slots are opened at equal intervals on the connecting pipe;

[0011] An abutment ring is fixedly installed on the outside of the connecting pipe. The abutment ring cooperates with the adjusting abutment member to achieve locking and sealing.

[0012] As a preferred embodiment of this utility model, the outer side of both the mating end and the adjacent mating end of the connecting pipe is provided with external threads.

[0013] As a preferred embodiment of this utility model, the adjusting abutment includes a sleeve that is screwed to the mating end, and the outer end of the sleeve is fixedly connected to the abutment end.

[0014] As a preferred embodiment of this utility model, the cross-section of the abutting end is conical.

[0015] As a preferred embodiment of this utility model, the end of the abutting ring is provided with an abutting groove, and a sealing element is provided inside the abutting groove.

[0016] As a preferred embodiment of this utility model, the sealing element includes a plurality of sealing rings and a sealing ring, wherein the cross-section of the sealing ring is trapezoidal and the sealing ring has a conical groove in the middle.

[0017] As a preferred embodiment of this utility model, the size of the groove in the middle of the sealing ring is smaller than the size of the abutting end.

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

[0019] This utility model provides a locking force by separately setting a docking end and a connecting pipe. During use, the docking end and the end of the connecting pipe are connected by a sleeve. At the same time, the connection is maintained and sealed by the docking of the abutting end and the abutting ring, which prevents the pipe from accidentally coming out of the socket due to abnormal increase in system pressure. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0023] In the diagram: 1. Valve body; 2. Knob; 3. Connecting pipe; 4. Groove; 5. Butt joint; 6. Sleeve; 7. Abutting end; 8. External thread; 9. Abutting ring; 10. Abutting groove; 11. Sealing ring; 12. Sealing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figure 1-3 This utility model provides a technical solution:

[0029] For an example, please refer to... Figure 1 , 2 3. A plastic pipe valve with an anti-detachment structure includes a valve body 1, a knob 2, a connecting pipe 3, and adjusting abutment components. The valve body 1 is integrally molded from engineering plastics such as PP, PVC, or ABS using an injection molding process to ensure its structural strength and corrosion resistance. Both ends of the fluid passage of the valve body 1 are equipped with mating ends 5 for connection to a piping system. At the upper end of the valve body 1, an integrally molded upward-protruding mounting end is provided, which contains a valve cavity to accommodate and fix the valve core. The knob 2 is fitted onto the top of this mounting end via threads or snap-fit ​​mechanisms. By rotating the knob 2, the user can drive the valve core at its lower end to rotate or rise and fall, thereby opening, closing, or regulating the flow rate of the fluid passage.

[0030] The connecting pipe 3 is used to be pre-fixed and sleeved on the outside of the water pipe. The connecting pipe 3 is preferably made of plastic with a certain degree of elasticity. Multiple slots 4 are opened at equal intervals along the axial direction on its pipe wall. The presence of these slots 4 facilitates fixing and bonding with glue.

[0031] To achieve reliable locking and sealing, an abutment ring 9 is fixedly installed on the outer wall of the connecting pipe 3. The abutment ring 9 can be integrally injection molded with the connecting pipe 3, or it can be fixed by interference fit or bonding.

[0032] Please refer to Figure 1 , 2 3. The adjusting abutment is located on the outside of the mating end 5 of the valve body 1. In a preferred embodiment, the adjusting abutment includes a sleeve 6 that is screwed to the mating end 5. Specifically, an external thread 8 is machined on the outer side wall of the mating end 5, and a matching internal thread is machined on the inner side wall of the sleeve 6. Through the threaded engagement, the sleeve 6 can rotate and move axially relative to the valve body 1. An abutment end 7 is fixedly connected to the outer end of the sleeve 6. The cross-section of the abutment end 7 is preferably conical, forming a guide slope. The end of the connecting pipe 3 is also provided with an external thread 8. The sleeve 6 moves to the mating point of the mating end 5 and the connecting pipe 3 to maintain a stable connection between the mating end 5 and the connecting pipe 3.

[0033] The pipe is connected to the connecting pipe 3 by heat fusion. After the connection is completed, the sleeve 6 is rotated and moved to the connection point between the connecting end 5 and the connecting pipe 3. Then the abutting end 7 is connected to the abutting ring 9. An abutting groove 10 can be opened at the end of the abutting ring 9. A sealing element is provided inside the abutting groove 10. The sealing element may include one or more sealing rings 12 and a sealing ring 11.

[0034] The sealing ring 12 preferably has a trapezoidal cross-section, which can produce good deformation sealing when under pressure. The sealing ring 11 has a conical groove in the middle, and the size of the conical groove is designed to be slightly smaller than the conical size of the abutment end 7.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic pipe valve with an anti-detachment structure, characterized in that, include: The valve body (1) has docking ends (5) at both ends. The upper end of the valve body (1) is integrally formed with an upwardly protruding mounting end. A knob (2) is provided on the mounting end, and a valve core is docked at the lower end of the knob (2). An adjusting abutment is provided on the outside of the mounting end; Connecting pipe (3), the connecting pipe (3) is fixedly installed on the outside of the water pipe, and the connecting pipe (3) has a number of slots (4) at equal intervals. The abutment ring (9) is fixedly installed on the outside of the connecting pipe (3). The abutment ring (9) cooperates with the adjusting abutment to achieve locking and sealing.

2. The plastic tube valve with anti-detachment structure according to claim 1, characterized in that: External threads (8) are provided on the outer sides of the adjacent joints of the docking end (5) and the connecting pipe (3).

3. The plastic tube valve with an anti-detachment structure according to claim 2, characterized in that: The adjusting abutment includes a sleeve (6) that is screwed into the mating end (5), and the outer end of the sleeve (6) is fixedly connected to the abutment end (7).

4. The plastic tube valve with an anti-detachment structure according to claim 3, characterized in that: The cross-section of the abutment end (7) is conical.

5. The plastic tube valve with an anti-detachment structure according to claim 4, characterized in that: The end of the abutment ring (9) is provided with an abutment groove (10), and a sealing element is provided inside the abutment groove (10).

6. The plastic tube valve with an anti-detachment structure according to claim 5, characterized in that: The sealing element includes several sealing rings (12) and sealing rings (11). The sealing rings (12) have a trapezoidal cross-section, and the sealing rings (11) have a conical groove in the middle.

7. The plastic tube valve with an anti-detachment structure according to claim 6, characterized in that: The size of the groove in the middle of the sealing ring (11) is smaller than the size of the abutment end (7).

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