Convenient-to-assemble and reliable plastic valve assembly

Abstract

The utility model relates to the technical field of plastic valves, and discloses a reliable plastic valve assembly convenient to assemble, which comprises a plastic valve, a valve ball and a channel, a connecting pipe is arranged on one side of a feeding end of the plastic valve, a connecting end is integrally formed at the end part of the connecting pipe, and a sealing pressure pad is sleeved on the periphery of the connecting end. According to the utility model, when the plastic valve is connected with the connecting pipe, the connecting pipe can be directly inserted into the plastic valve through the connecting end, the plurality of groups of sealing pressure pads outside the connecting end can be mutually extruded, sealed and matched with the inner side of the plastic valve, and then the outer jacket is controlled to rotate; the inner threads on the inner side of the outer clamping sleeve are in threaded connection with the outer threads on the periphery of the mounting ring piece, the threaded pad is in a threaded meshing state through the outer threads and the inner threads, the outer clamping sleeve can be conveniently and rotationally disassembled subsequently through the elasticity of the threaded pad, disassembly is similar, and therefore the plastic valve and the connecting pipe can be conveniently and rapidly disassembled, assembled and used.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic valves, in particular to a plastic valve assembly that is convenient for assembly and reliable. Background Technique

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, and adjust and control the parameters of the transported medium. There are various types of valves, which are widely used in pipelines. Among them, due to the advantages of light weight, corrosion resistance, non-scaling, integratable connection with plastic pipelines, and long service life of plastic valves, the advantages of plastic valves in the application of plastic pipeline systems for water supply and other fluids in industry are incomparable to other valves.

[0003] When the existing plastic valve assembly is connected and assembled with an external pipeline, internal threads are provided on the inner side of the valve pipe, and the external pipeline is threadedly connected and assembled with the valve pipe through external threads. However, during long-term transportation and use of the valve pipe, the threaded connection between the valve and the connecting pipe may become stuck due to impurities in the transported medium itself, resulting in inconvenient disassembly of the subsequent external connecting pipe. For this reason, we propose a plastic valve assembly that is convenient for assembly and reliable. Summary of the Utility Model

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a plastic valve assembly that is convenient for assembly and reliable.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme. A plastic valve assembly that is convenient for assembly and reliable includes a plastic valve, a valve ball, and a channel. A connecting pipe is arranged on one side of the feeding end of the plastic valve. A connecting end is integrally formed at the end of the connecting pipe. A sealing gasket is sleeved and installed on the periphery of the connecting end. The cross-section of the sealing gasket is a trapezoidal structure and the sealing gasket itself has a deformation characteristic. A butt gasket connected to the end face of the connecting pipe is sleeved outside the connecting end, and the butt gasket itself has a deformation characteristic.

[0006] Preferably, after the connecting pipe is inserted into the inside of the feeding end of the plastic valve through the connecting end, the sealing gasket outside the connecting end is in an extrusion sealing state with the inner side of the feeding end of the plastic valve, and the butt gasket at the end of the connecting pipe is in a mutually sealed butt state with the end of the plastic valve.

[0007] Preferably, first limit sleeves are sleeved and installed at both ends of the periphery of the plastic valve. An outer clamping sleeve that is in limit cooperation with the first limit sleeve is sleeved on the periphery of the plastic valve. An installation ring is sleeved and installed on the periphery of the connecting pipe. External threads are provided on the periphery of the installation ring. Internal threads are provided on the inner side of the outer clamping sleeve. A thread gasket is coated on the surface of the external threads. A second limit sleeve is sleeved and installed on the periphery of the plastic valve.

[0008] Preferably, when the outer part of the connecting pipe is threadedly connected to the inner thread on the inner side of the outer jacket through the external thread on the periphery of the mounting ring, the thread pad is in a thread-engaging state through the external thread and the internal thread during the threaded connection.

[0009] Preferably, when the outer jacket is threadedly connected to the mounting ring on the outer part of the connecting pipe, a sealing limit state is formed between the plastic valve and the end of the connecting pipe through a butt joint gasket.

[0010] Preferably, a flow guide cover is fixedly installed at the end of the connecting end. The flow guide cover is an elliptical hollow cover body. An outwardly expanding groove communicating with the channel is formed on the surface of the valve ball. The flow guide cover and the outwardly expanding groove are in a horizontally corresponding state.

[0011] Beneficial effects

[0012] The utility model provides a plastic valve assembly that is convenient for assembly and reliable, having the following beneficial effects:

[0013] 1. For the plastic valve assembly that is convenient for assembly and reliable, in this article, a plurality of sealing gaskets are arranged on the periphery of the connecting end. When connecting the plastic valve and the connecting pipe, the connecting pipe can be directly inserted into the plastic valve through the connecting end, and the plurality of sealing gaskets on the outside of the connecting end can be mutually extruded and sealed with the inner side of the plastic valve. The cross-section of the sealing gasket is a trapezoidal structure, which can increase the tight sealing effect between the plastic valve and the connecting end. At this time, after controlling the outer jacket to slide close to the mounting ring, the outer jacket can be rotated, and the inner thread on the inner side of the outer jacket is threadedly connected to the outer thread on the periphery of the mounting ring, and the thread pad is in a thread-engaging state through the external thread and the internal thread. The elasticity of the thread pad facilitates the subsequent rotation and disassembly of the outer jacket. The disassembly is the same. After rotating the outer jacket to separate from the mounting ring, the connecting pipe can be directly pulled out horizontally, without external jamming resistance, so as to achieve the effect of facilitating the quick disassembly and assembly of the plastic valve and the connecting pipe for use.

[0014] 2. For the plastic valve assembly that is convenient for assembly and reliable, a flow guide cover is installed at one end of the connecting end. The flow guide cover is an elliptical hollow structure, and the narrower end is horizontally corresponding to the channel. An outwardly expanding groove communicating with the channel is formed on the surface of the valve ball, and the outwardly expanding groove is an elliptical outwardly diffusing structure. In this way, when the external medium is conveyed from the connecting end to the inside of the plastic valve through the connecting pipe, the medium can be directly guided and contracted through the flow guide cover and then introduced into the channel for circulation, reducing the contact area with the surface of the valve ball, so as to achieve the effect of improving the conveying effect of the medium inside the plastic valve and avoiding impact penetration and leakage on the surface of the valve ball. Description of the drawings

[0015] To more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained by extension based on the provided drawings.

[0016] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions for the implementation of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present utility model.

[0017] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 For the present utility model Figure 1 Enlarged view of A in;

[0019] Figure 3 For the present utility model Figure 1 Enlarged view of B in;

[0020] Figure 4 Partial schematic diagram of the sealing gasket of the present utility model.

[0021] Legend description:

[0022] 1. Plastic valve; 2. Valve ball; 3. Channel; 4. Connecting pipe; 5. Connecting end; 6. Sealing gasket; 7. Docking gasket; 8. First limiting sleeve; 9. Outer clamping sleeve; 10. Mounting ring part; 11. External thread; 12. Internal thread; 13. Thread gasket; 14. Second limiting sleeve; 15. Flow guide cover; 16. Outer expansion groove. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0024] Embodiment: A plastic valve assembly that is convenient for assembly and reliable, such as Figures 1-4As shown in the figure, it includes a plastic valve 1, a valve ball 2 and a channel 3. On one side of the feeding end of the plastic valve 1, there is a connecting pipe 4. At the end of the connecting pipe 4, a connecting end 5 is integrally formed. An outer sealing gasket 6 is sleeved and installed around the connecting end 5. The cross-section of the sealing gasket 6 is a trapezoidal structure and the sealing gasket 6 itself has a deformation characteristic. An abutting gasket 7 connected to the end face of the connecting pipe 4 is sleeved outside the connecting end 5. The abutting gasket 7 itself has a deformation characteristic. At both ends of the periphery of the plastic valve 1, first limiting sleeves 8 are sleeved and installed. An outer clamping sleeve 9 that is in limiting cooperation with the first limiting sleeve 8 is sleeved on the periphery of the plastic valve 1. An installation ring member 10 is sleeved and installed around the connecting pipe 4. An external thread 11 is provided on the periphery of the installation ring member 10. An internal thread 12 is provided on the inner side of the outer clamping sleeve 9. A thread gasket 13 is provided on the surface of the external thread 11. A second limiting sleeve 14 is sleeved and installed on the periphery of the plastic valve 1. A flow guide cover 15 is fixedly installed at the end of the connecting end 5. An outward expanding groove 16 communicating with the channel 3 is provided on the surface of the valve ball 2.

[0025] Further, after the connecting pipe 4 is inserted into the inside of the feeding end of the plastic valve 1 through the connecting end 5, the sealing gasket 6 outside the connecting end 5 and the inner side of the feeding end of the plastic valve 1 are in an extrusion sealing state, and the abutting gasket 7 at the end of the connecting pipe 4 and the end of the plastic valve 1 are in a mutually sealed butt joint state.

[0026] Further, when the external thread 11 on the periphery of the installation ring member 10 of the connecting pipe 4 is threadedly connected with the internal thread 12 on the inner side of the outer clamping sleeve 9, the thread gasket 13 is in a thread biting state through the external thread 11 and the internal thread 12 during the threaded connection.

[0027] Further, when the outer clamping sleeve 9 is threadedly connected with the installation ring member 10 outside the connecting pipe 4, the plastic valve 1 and the end of the connecting pipe 4 are in a sealed limiting state through the abutting gasket 7.

[0028] Further, the flow guide cover 15 is an elliptical hollow cover body, and the flow guide cover 15 and the outward expanding groove 16 are in a horizontally corresponding state.

[0029] The working principle of the present utility model:

[0030] When connecting the plastic valve 1 and the connecting pipe 4, the connecting pipe 4 can be directly inserted into the plastic valve 1 through the connecting end 5, and multiple groups of sealing gaskets 6 outside the connecting end 5 can be mutually extrusion-sealed with the inner side of the plastic valve 1. The cross-section of the sealing gasket 6 is a trapezoidal structure, which can increase the tight sealing effect between the plastic valve 1 and the connecting end 5. At this time, after controlling the outer jacket 9 to slide close to the mounting ring member 10, the outer jacket 9 can be controlled to rotate. The inner thread 12 inside the outer jacket 9 is threadedly connected with the outer thread 11 on the periphery of the mounting ring member 10, and the thread pad 13 is in a thread-engaging state through the outer thread 11 and the inner thread 12. The elasticity of the thread pad 13 facilitates the subsequent rotation and disassembly of the outer jacket 9. The disassembly is the same. After rotating the outer jacket 9 to separate it from the mounting ring member 10, the connecting pipe 4 can be directly pulled out horizontally, without external jamming resistance, so as to facilitate the quick disassembly and assembly of the plastic valve 1 and the connecting pipe 4 for use.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic valve assembly that is convenient for assembly and reliable, comprising a plastic valve (1), a valve ball (2) and a passage (3), characterized in that: On one side of the feeding end of the plastic valve (1), there is a connecting pipe (4). At the end of the connecting pipe (4), a connecting end (5) is integrally formed. An end face sealing gasket (6) is sleeved and installed on the periphery of the connecting end (5). The cross-section of the end face sealing gasket (6) is a trapezoidal structure, and the end face sealing gasket (6) itself has a deformation characteristic. A butt gasket (7) connected to the end face of the connecting pipe (4) is sleeved on the outside of the connecting end (5), and the butt gasket (7) itself has a deformation characteristic.

2. The convenient and reliable plastic valve assembly according to claim 1, wherein: After the connecting pipe (4) is inserted into the inside of the feeding end of the plastic valve (1) through the connecting end (5), the end face sealing gasket (6) outside the connecting end (5) is in an extrusion sealing state with the inner side of the feeding end of the plastic valve (1), and the butt gasket (7) at the end of the connecting pipe (4) is in a mutually sealed butt state with the end of the plastic valve (1).

3. A convenient-to-assemble and reliable plastic valve assembly according to claim 1, characterized in that: On both ends of the periphery of the plastic valve (1), first limiting sleeves (8) are sleeved and installed. An outer clamping sleeve (9) is sleeved on the periphery of the plastic valve (1). An installation ring part (10) is sleeved and installed on the periphery of the connecting pipe (4). An external thread (11) is provided on the periphery of the installation ring part (10). An internal thread (12) is provided on the inner side of the outer clamping sleeve (9). A thread gasket (13) is coated on the surface of the external thread (11). A second limiting sleeve (14) is sleeved and installed on the periphery of the plastic valve (1).

4. A convenient-to-assemble and reliable plastic valve assembly according to claim 3, characterized in that: When the connecting pipe (4) is threadedly connected to the internal thread (12) on the inner side of the outer clamping sleeve (9) through the external thread (11) on the periphery of the installation ring part (10), the thread gasket (13) is in a thread biting state during the threaded connection through the external thread (11) and the internal thread (12).

5. A convenient-to-assemble and reliable plastic valve assembly according to claim 4, characterized in that: When the outer clamping sleeve (9) is threadedly connected to the installation ring part (10) outside the connecting pipe (4), the plastic valve (1) and the end of the connecting pipe (4) are in a sealed and limited state through the butt gasket (7).

6. A convenient-to-assemble and reliable plastic valve assembly according to claim 2, characterized in that: A flow guiding cover (15) is fixedly installed at the end of the connecting end (5). The flow guiding cover (15) is an elliptical hollow cover body. An outward expanding groove (16) communicating with the channel (3) is provided on the surface of the valve ball (2). The flow guiding cover (15) and the outward expanding groove (16) are in a horizontally corresponding state.

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