CN214743412U

CN214743412U - Stop valve for plastic pipeline

Info

Publication number: CN214743412U
Application number: CN202121320689.8U
Authority: CN
Inventors: 岑自成
Original assignee: Chengdu Yifan Plastic Co ltd
Current assignee: Chengdu Yifan Plastic Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-11-16
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses a stop valve for plastic pipeline belongs to valve technical field for the pipeline. The purpose is to improve the impact strength and the wearability of end cap in the stop valve, and the end cap has the sunken poor problem of stop valve water shutoff effect that leads to appearing on some base members after long-time the use in the former raw water in solving current stop valve. Technical scheme is, provides a stop valve for plastic pipeline, including disk seat, valve body, connecting piece, head rod and end cap, the one end of disk seat is equipped with the water inlet, and the other end of disk seat is equipped with the delivery port, is equipped with the installation department on the lateral wall of disk seat, is equipped with first logical groove in the installation department, is equipped with the second in the valve body and leads to the groove, is equipped with the portion of controlling on the head rod, and first logical groove below is equipped with the through-hole, and the bottom of end cap is equipped with the plastics gasket.

Description

Stop valve for plastic pipeline

Technical Field

The utility model belongs to the technical field of the valve for the pipeline, a stop valve for plastic pipeline is related to.

Background

The stop valve is through changing throttle cross section or throttle length with the valve of control fluid flow, and stop valve convenient to use, application range are very extensive, are common valve, and the closure principle of stop valve is: the valve clack sealing surface is tightly attached to the valve seat sealing surface by means of the pressure of the valve rod, and the medium is prevented from flowing.

The common valve body flow passage forms of the stop valve are 3 types of straight-through type, straight-through type and right-angle type, the fluid resistance of the straight-through type stop valve is large, and the valve body is called a spherical valve because the shape of the valve body is similar to a sphere; in order to reduce the fluid resistance, a direct-flow type, namely a Y-type stop valve and a right-angle type stop valve are arranged, and the direct-flow type is mainly used for fluid containing solid particles or high in viscosity; the right-angle type is used for high-pressure and medium-pressure right-angle type pipelines.

Raw water is generally a natural water source collected in nature, including underground water, spring water, reservoir water and the like, and impurities such as silt, gravel and the like generally exist in the raw water without any artificial purification treatment.

In the process of implementing the present invention, the inventor finds that there are at least the following problems in the prior art:

1. the existing stop valve has the problems of complex structure, high maintenance and replacement cost, poor water plugging effect after long-time use and the like;

2. the end cap of current stop valve adopts flavone preparation mostly, and such stop valve after extracting with the pipeline of shutoff raw water work a period, end cap and raw water direct contact's one side because often erode and appear sunken leading to unable shutoff and block up water, form the water clock, need often change, and is with high costs unfavorable for manufacturing.

Disclosure of Invention

In view of this, the utility model aims at providing a stop valve for plastic pipeline adds the plastics gasket in the bottom of end cap, makes it have fabulous shock strength and wearability to be convenient for processing production, reduce cost.

The inventor provides a stop valve for a plastic pipeline through long-term exploration and attempt, multiple experiments and efforts and continuous innovation, and aims to solve the technical problems, the technical scheme provided by the utility model is that the stop valve comprises a valve seat, a valve body, a connecting piece, a first connecting rod and a plug, one end of the valve seat is provided with a water inlet, the other end of the valve seat is provided with a water outlet, the side wall of the valve seat is provided with an installation part, a first through groove is arranged in the installation part and communicated with the inside of the valve seat, the connecting piece is arranged in the first through groove, one end of the valve body is arranged in the first through groove through the connecting piece, a second through groove is arranged in the valve body, the first connecting rod is arranged in the second through groove, one end of the first connecting rod extends out of one end of the second through groove, one end of the first connecting rod is provided with a holding part, the other end of the first connecting rod is detachably connected with one end of the plug, a through hole matched with the other end of the plug is formed below the first through groove, and a plastic sealing sheet is arranged at the bottom of the plug.

According to the utility model relates to a concrete implementation mode of a stop valve for plastic pipeline, be equipped with the extension around the plastic sealing piece, the extension forms first mounting groove, the plastic sealing piece is through first mounting groove suit on the other end of end cap.

According to the utility model relates to a preferred embodiment of a stop valve for plastic pipeline, the end cap includes second connecting rod and water shutoff portion, the second connecting rod is connected with water shutoff portion, be equipped with the second mounting groove in the second connecting rod, the head rod passes through the second mounting groove and is connected with the second connecting rod.

According to the utility model relates to a further embodiment of a stop valve for plastic pipeline, be equipped with the internal thread on the second mounting groove inside wall, be equipped with on the head rod outer wall with interior screw-thread fit's external screw thread.

According to the utility model relates to a further embodiment of a stop valve for plastic pipeline, second mounting groove inside wall both ends are equipped with the internal thread, be equipped with on the head rod outer wall with interior screw-thread fit's external screw thread.

According to the utility model relates to a further embodiment of a stop valve for plastic pipeline, the disk seat is equipped with the rubber seal ring with the valve body department of being connected.

According to the utility model relates to a further embodiment for stop valve of plastic pipeline, the valve body is equipped with corresponding rubber and plastic sealing washer with head rod cooperation department.

According to the utility model relates to a further embodiment of a stop valve for plastic pipeline, the plastic sealing piece is made by ABS engineering plastics.

According to the utility model relates to a further embodiment of a stop valve for plastic pipeline, the head rod serves with one being connected with the handle and is equipped with fastening nut.

According to the utility model relates to a further embodiment of a stop valve for plastic pipeline, be equipped with the gasket between fastening nut and the handle.

Compared with the prior art, one of the technical solutions has the following advantages:

a) the utility model discloses a disk seat, the valve body, the connecting piece, stop valve is constituteed to head rod and end cap, one end through at the disk seat is equipped with the water inlet, the other end of disk seat is equipped with the delivery port, be equipped with the installation department on the lateral wall of disk seat, be equipped with first logical groove in the installation department, first logical groove and the inside intercommunication of disk seat, be equipped with the second in the valve body and lead to the groove, be equipped with on the head rod and control the portion, the head rod is connected with the end cap is detachable, first logical groove below is equipped with the other end complex through-hole with the end cap, the bottom of end cap is equipped with the setting of plastics gasket, the work maintenance personnel of being convenient for go on the utility model discloses a dismouting work, reduction in production cost and cost of labor, fabulous impact strength has, overall structure is firm reliable, long service life and advantage such as the water blocking effect is good, be applicable to the pipeline that is used for extracting the raw water specially.

b) The utility model discloses a be equipped with the extension around the plastics gasket, the extension forms first mounting groove, and the plastics gasket passes through the setting of first mounting groove suit on the other end of end cap, and the staff of being convenient for carries out the dismouting replacement of plastics gasket.

c) The utility model discloses an end cap that second connecting rod and water shutoff portion are constituteed adopts the setting that the head rod passes through the second mounting groove to be connected with the second connecting rod, and the staff of being convenient for carries out the dismouting work of end cap, dismantles the replacement when conveniently overhauing.

d) The utility model discloses a be equipped with the internal thread on the second mounting groove inside wall, be equipped with on the head rod outer wall face with interior screw-thread fit's external screw thread, such relation of connection is simple and practical, and is firm reliable.

e) The utility model discloses a second mounting groove inside wall both ends department is equipped with the internal thread, be equipped with on the head rod outer wall with the setting of interior screw-thread fit's external screw thread, such relation of connection simple and practical, firm reliable to need not set up too much internal thread in the second mounting groove, improve production efficiency, reduce cost.

f) The utility model discloses a disk seat is equipped with the setting of rubber seal ring with the valve body department of being connected, avoids disk seat and valve body direct contact, produces wearing and tearing ageing and lead to unable normal use after long-term work, has improved the utility model discloses a life can also improve the utility model discloses a leakproofness.

g) The utility model discloses a valve body and head rod cooperation department are equipped with the setting of corresponding rubber and plastic sealing washer, avoid head rod and valve body direct contact, produce wear and tear after long-term the use ageing leading to unable normal use, further improved the utility model discloses a life can also further improve the utility model discloses a leakproofness.

h) The utility model discloses a setting that the plastics gasket was made by ABS engineering plastics, ABS engineering plastics are with low costs and have nontoxic, tasteless, have the characteristic cold concurrently, hard, steel.

i) The utility model discloses a setting that serves and be equipped with fastening nut that head rod and control portion are connected improves eight chi portions and head rod relation of connection's steadiness, and makes the utility model discloses the replacement can be dismantled to the control portion, and the staff of being convenient for carries out dismouting work.

j) The utility model discloses a be equipped with the setting of gasket between fastening nut and the control portion, avoid control portion and the long-term rigid contact of head rod to take place to wear out and lead to after ageing unable normal use, the scheduling problem that leaks appears.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a stop valve for a plastic pipe according to a preferred embodiment of the present invention.

Fig. 2 is a schematic structural view of another preferred embodiment of the stop valve for plastic pipes according to the present invention.

The labels in the figure are respectively: 100 valve seats, 110 water inlets, 120 water outlets, 130 installation parts, 131 first through grooves, 140 through holes, 200 valve bodies, 210 second through grooves, 300 connecting pieces, 400 first connecting rods, 500 plugs, 510 plastic sealing pieces, 520 second connecting rods, 521 second installation grooves, 530 water plugging parts, 540 extension parts, 541 first installation grooves, 600 holding parts, 610 fastening nuts, 620 gaskets, 700 rubber and plastic sealing rings and 800 rubber sealing rings.

Detailed Description

The following description is made with reference to the accompanying drawings and a specific embodiment.

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

Example 1:

see fig. 1 to 2. What this embodiment describes is a stop valve for plastic conduit, including disk seat 100, valve body 200, connecting piece 300, first connecting rod 400 and end cap 500, the one end of disk seat 100 is equipped with water inlet 110, and the other end of disk seat 100 is equipped with delivery port 120, is equipped with installation department 130 on the lateral wall of disk seat 100, be equipped with first logical groove 131 in the installation department 130, first logical groove 131 and the inside intercommunication of disk seat 100, connecting piece 300 is installed in first logical groove 131, the one end of valve body 200 is installed in first logical groove 131 through connecting piece 300, be equipped with second logical groove 210 in the valve body 200, first connecting rod 400 is installed in second logical groove 210, the one end of second logical groove 210 is stretched out from to the one end of first connecting rod 400, one end of first connecting rod 400 is equipped with the portion of controlling 600, the other end of first connecting rod 400 is connected with the one end of end detachable of end cap 500, a through hole 140 matched with the other end of the plug 500 is arranged below the first through groove 131, and a plastic sealing sheet 510 is arranged at the bottom of the plug 500. In this embodiment, the valve seat 100 is connected with the water pipe through the water inlet 110 and the water outlet 120 respectively, the connecting piece 300 is an insert, as a transition piece when the valve body 200 is connected with the valve seat 100, it is convenient for the staff to carry out the installation connection work of the valve body 200 and the valve seat 100, the first connecting rod 400 is a valve rod, the holding part 600 is a hand wheel, the first connecting rod 400 can be driven to move up and down by rotating the holding part 600, and then the plug 500 is driven to move up and down to cooperate with the through hole 140 to adjust the water flow, the plastic sealing sheet 510 is arranged at the bottom of the plug 500, and can protect the plug 500, in the pipeline for conveying raw water, the problem that silt or gravel existing in the raw water directly erodes the plug 500 to cause the sinking thereof is avoided, the water plugging effect is poor, the dripping leakage and the like is caused, and the plastic sealing sheet 510 is low in cost, the installation mode is simple, and the production and the manufacturing is facilitated.

Specifically, the plug 500 includes a second connecting rod 520 and a water blocking part 530, the second connecting rod 520 is connected to the water blocking part 530, a second mounting groove 521 is provided in the second connecting rod 520, and the first connecting rod 400 is connected to the second connecting rod 520 through the second mounting groove 521. In this embodiment, the second connecting rod 520 and the water blocking part 530 are integrally formed to form the plug 500, the second mounting groove 521 is disposed in the second connecting rod 520, and when the plug 500 is connected to the first connecting rod 400, a worker can directly insert the first connecting rod 400 into the second mounting groove 521, so that the connection manner is simple and practical.

Specifically, an inner side wall of the second mounting groove 521 is provided with an inner thread, and an outer wall of the first connecting rod 400 is provided with an outer thread matched with the inner thread. The threaded connection mode is simple and practical, and has the advantages of convenient operation, good connection effect and the like.

Specifically, a rubber sealing ring 800 is arranged at the joint of the valve seat 100 and the valve body 200. In this embodiment, make disk seat 100 and valve body 200 not directly carry out the rigid contact through setting up rubber seal ring 800, avoid appearing wearing and tearing ageing, improve its life, still improved the utility model discloses a leakproofness appears leaking after avoiding the live time overlength and waits phenomenon.

Specifically, a corresponding rubber-plastic sealing ring 700 is arranged at the matching position of the valve body 200 and the first connecting rod 400. In this embodiment, make valve body 200 and head rod 400 not directly carry out rigid contact through setting up rubber and plastic sealing washer 700, avoid appearing wearing and tearing ageing, improve its life, still further improved the utility model discloses a leakproofness appears leaking after avoiding the live time overlength and waits.

Specifically, a fastening nut 610 is disposed at one end of the first connecting rod 400 connected to the holding part 600. In the present embodiment, the fastening nut 610 can fix the grip 600 to the first connecting rod 400, and the worker can easily attach and detach the grip 600.

Specifically, a spacer 620 is provided between the fastening nut 610 and the grip 600. In this embodiment, the gasket 620 prevents the holding part 600 from being in rigid contact with the top of the first connecting rod 400, which may cause water leakage after abrasion.

Example 2:

see fig. 1. This embodiment is a further technical solution in embodiment 1, and therefore, the same contents in embodiment 1 are not described again in this embodiment, and the differences in this embodiment in comparison with embodiment 1 are: and internal threads are arranged at two ends of the inner side wall of the second mounting groove 521, and external threads matched with the internal threads are arranged on the outer wall surface of the first connecting rod 400. In this embodiment, only both ends of the second mounting groove 521 are provided with internal threads, which can reduce the overall weight of the utility model discloses a ensure that the plug 500 is connected firmly with the first connecting rod 400.

Example 3:

see fig. 2. This embodiment is a further technical solution in the foregoing embodiment, and therefore the same contents in the foregoing embodiment are not described again in this embodiment, and the difference of this embodiment compared with the foregoing embodiment is: an extension part 540 is arranged around the plastic sealing piece 510, a first installation groove 541 is formed in the extension part 540, and the plastic sealing piece 510 is sleeved on the other end of the plug 500 through the first installation groove 541. In this embodiment, the plastic sealing piece 510 forms a shape structure similar to a plastic sleeve through the extension part 540, a worker directly fits the plastic sleeve to the plug 500 through the first mounting groove 541, the installation method is simple and convenient, when the plastic sleeve needs to be replaced, the worker holds the second connecting rod 520 of the plug 500 in one hand, the other hand rotates the plastic sleeve to detach the plastic sleeve from the plug 500, the disassembly and assembly method is convenient and fast, the whole plug 500 does not need to be replaced when the plastic sleeve is replaced, only the plastic sealing piece 510 needs to be replaced, and the service life of a product is prolonged.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims

1. A stop valve for plastic pipeline which characterized in that: the valve comprises a valve seat (100), a valve body (200), a connecting piece (300), a first connecting rod (400) and a plug (500), wherein a water inlet (110) is formed in one end of the valve seat (100), a water outlet (120) is formed in the other end of the valve seat (100), an installation part (130) is formed in the side wall of the valve seat (100), a first through groove (131) is formed in the installation part (130), the first through groove (131) is communicated with the interior of the valve seat (100), the connecting piece (300) is installed in the first through groove (131), one end of the valve body (200) is installed in the first through groove (131) through the connecting piece (300), a second through groove (210) is formed in the valve body (200), the first connecting rod (400) is installed in the second through groove (210), one end of the first connecting rod (400) extends out of one end of the second through groove (210), and a holding part (600) is arranged at one end of the first connecting rod (400), the other end of the first connecting rod (400) is detachably connected with one end of the plug (500), a through hole (140) matched with the other end of the plug (500) is formed below the first through groove (131), and a plastic sealing sheet (510) is arranged at the bottom of the plug (500).

2. A shut-off valve for plastic conduits as claimed in claim 1, wherein: an extension part (540) is arranged around the plastic sealing piece (510), a first mounting groove (541) is formed by the extension part (540), and the plastic sealing piece (510) is sleeved on the other end of the plug (500) through the first mounting groove (541).

3. A shut-off valve for plastic conduits as claimed in claim 1, wherein: the plug (500) comprises a second connecting rod (520) and a water blocking part (530), the second connecting rod (520) is connected with the water blocking part (530), a second mounting groove (521) is formed in the second connecting rod (520), and the first connecting rod (400) is connected with the second connecting rod (520) through the second mounting groove (521).

4. A shut-off valve for plastic conduits as claimed in claim 3, wherein: and an inner thread is arranged on the inner side wall of the second mounting groove (521), and an outer thread matched with the inner thread is arranged on the outer wall surface of the first connecting rod (400).

5. A shut-off valve for plastic conduits as claimed in claim 3, wherein: and internal threads are arranged at two ends of the inner side wall of the second mounting groove (521), and external threads matched with the internal threads are arranged on the outer wall surface of the first connecting rod (400).

6. A shut-off valve for plastic conduits as claimed in claim 1, wherein: and a rubber sealing ring (800) is arranged at the joint of the valve seat (100) and the valve body (200).

7. A shut-off valve for plastic conduits as claimed in claim 1, wherein: and a corresponding rubber-plastic sealing ring (700) is arranged at the matching position of the valve body (200) and the first connecting rod (400).

8. A shut-off valve for plastic conduits as claimed in claim 1, wherein: the plastic sealing piece is made of ABS engineering plastics.

9. A shut-off valve for plastic conduits as claimed in claim 1, wherein: and a fastening nut (610) is arranged at one end of the first connecting rod (400) connected with the holding part (600).

10. A shut-off valve for plastic conduits as claimed in claim 9, wherein: a gasket (620) is arranged between the fastening nut (610) and the holding part (600).