CN209084037U - High leakproofness concealed installation gate valve - Google Patents

Abstract

The utility model discloses a kind of high leakproofness concealed installation gate valves, it includes valve body made of copper and can move up and down to the flashboard spool with valve body cooperation block fluid, the drive rod that flashboard spool can be driven to move up and down is installed on valve body, the overhanging end of the drive rod is equipped with driving handle, the both ends that integrally formed PPR shell and PPR shell are coated with outside the valve body are formed to connecting line, the top of valve body is embedded with the lower seal circle cooperated with flashboard seal spool, the top of valve body is connected with valve deck, middle part sealing ring is equipped between valve deck and valve body, the top of valve deck is equipped with the sleeve sections being pierced by upwards for drive rod, upper sealing gasket is housed between sleeve sections and drive rod.The utility model has the advantages that quickly to be docked with PPR pipe road and self seal effect is good, long service life.

Description

High leakproofness concealed installation gate valve

Technical field

The utility model relates to a kind of high leakproofness concealed installation gate valves.

Background technique

Currently, pipeline industry, agricultural and urban construction in be widely used, such as apply supply water, in terms of. Gate valve is mainly used to do the flowing of cutting medium in pipeline, compact-sized, sealed reliable and easily operated and maintenance, each A industry is used widely.These years, the extensive use on PPR pipe road, big multi-pipeline all use PPR pipe road, original gate valve (metal is made) cannot be directly interfaced, thus needs to be arranged corresponding crossover sub structure, thus increases pipeline laying Cost, construction period are elongated.In addition, traditional gate valve has the following problems, the sealing effect between valve body and drive rod is undesirable, It is be easy to cause poorly sealed close problem, fluid leakage problem occurs；Furthermore it is sealed between flashboard and valve seat using side, During when prolonged, with the friction between flashboard and valve seat, it be easy to appear poorly sealed close problem, causes gate valve Failure.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of height that can be directly connected to PPR pipe road and good seal performance Leakproofness concealed installation gate valve.

In order to solve the above technical problems, provided high leakproofness concealed installation gate valve includes valve body made of copper and can move up and down To the flashboard spool with valve body cooperation block fluid, the drive rod that flashboard spool can be driven to move up and down is installed on valve body, The overhanging end of the drive rod is equipped with driving handle, is structurally characterized in that: integrally formed PPR shell is coated with outside the valve body And the both ends of PPR shell are formed to connecting line, the top of valve body is embedded with the lower seal cooperated with flashboard seal spool Circle, the top of valve body is connected with valve deck, is equipped with middle part sealing ring between valve deck and valve body, the top of valve deck be equipped with for drive rod to On the sleeve sections that are pierced by, upper sealing gasket is housed between sleeve sections and drive rod.

After adopting the above structure, due to using plastic technique, after the assembly is completed by valve body made of copper and flashboard spool, Make to be coated with PPR shell outside valve body, and is arranged to connecting line, thus the utility model can be carried out directly with PPR pipe road Heat-melting butt-joint improves the labor efficiency of operation, reduces installation cost；By the setting on top, middle part, lower seal circle, Make entirely to install gate valve with better sealing, substantially prolongs its service life.

Be set with the thread bush stretched out upwards outside the valve deck, the driving handle be rotatably connected on the top of thread bush and The top of drive rod is connect with driving handle, and lower part and the flashboard spool of the drive rod are spirally connected, and the valve deck is equipped with for lock The flashboard chamber that plate valve core enters after moving upwards.

It is set with outer cover outside the thread bush, the rubber ring of energy sealed valve cap and valve body junction is set in outer cover.

The valve body is equipped with and outwardly protrudes the ear protruded into PPR shell.

Flashboard spool two sides have the sleeve being spirally connected for drive rod, sealed end face ring with sealed end face ring, middle part Seal face be gradually obliquely installed inwards from the outside to the core, the inner bottom surface of valve body is equipped with to sink for what flashboard spool bottom be inserted into Slot, the sealed end face ring are contacted with valve body line.

In conclusion the utility model have can quickly be docked with PPR pipe road and self seal effect it is good, using the longevity Order long advantage.

Detailed description of the invention

The utility model will be further described below with reference to the accompanying drawings:

Fig. 1 is a kind of structural schematic diagram of preferred embodiment of the utility model；

Fig. 2 is the schematic diagram of flashboard spool in Fig. 1 embodiment；

Fig. 3 is the schematic diagram of valve body in Fig. 1 embodiment.

Specific embodiment

With reference to attached drawing 1, the utility model provides a kind of preferred embodiment of high leakproofness concealed installation gate valve comprising copper Valve body 2 and can move up and down to valve body cooperation block fluid flashboard spool 1, in conjunction with shown in Fig. 2 and Fig. 3, in this reality It applies in example, 1 two sides of flashboard spool have sealed end face ring 1-1, and the seal face of sealed end face ring gradually inclines inwards from the outside to the core Tiltedly setting, the inner bottom surface of valve body 2 are equipped with the deep gouge being inserted into for flashboard spool bottom, and the sealed end face ring connects with valve body line Touching, i.e., when flashboard spool moves downward block fluid, the contour line at the diameter maximum position of sealed end face ring and the side of valve body Wall contact is sealed, and is changed existing surface seal structure, is changed to linear sealing, sealing effect is more preferable, the use of entire gate valve Longer life expectancy.The drive rod 4 that flashboard spool 1 can be driven to move up and down is installed, specifically, in flashboard spool on valve body 2 Portion is equipped with the sleeve being spirally connected for drive rod, and lower part and the flashboard spool of drive rod are spirally connected, and the overhanging end of the drive rod 4 is equipped with drive Fixed handle 7, when driving handle rotation of drive rod 4, flashboard spool can move up and down, to realize block fluid or conducting Function, and above-mentioned driving handle uses disk structure, has a spider, ring is furnished with multiple stir on spider Bar, poke rod not only facilitate manual operation, but also can be used as sunning support rod, extend the scope of application of the concealed installation gate valve.

With reference to shown in Fig. 1, Fig. 3, the both ends of integrally formed PPR shell 5 and PPR shell are coated with outside the valve body 2 It is formed to connecting line 51, valve body 2 is equipped with and outwardly protrudes the ear 13 protruded into PPR shell 5, can in above-mentioned plastic technique Keep the combination of valve body and PPR shell 5 more preferable, avoids the occurrence of the problem of the two is detached from.The top of valve body 2 is embedded with and flashboard spool The lower seal circle 3 of cooperation is sealed, the top of valve body 2 is connected with valve deck 6, middle part sealing ring 8 is equipped between valve deck 6 and valve body 2, The top of valve deck 6 is equipped with the sleeve sections being pierced by upwards for drive rod, and upper sealing gasket 9 is housed between sleeve sections and drive rod, leads to Above-mentioned multiple-sealed circle is crossed, the sealing performance of the installation gate valve is greatly strengthened, to prolong its service life.

Shown in referring to Fig.1, the thread bush 10 stretched out upwards is set with outside the valve deck 6, the driving handle 7 is rotatablely connected At the top of thread bush 10 and the top of drive rod is connect with driving handle, the lower part of the drive rod 4 and 1 spiral shell of flashboard spool It connects, the valve deck 6 screws driving hand by above structure equipped with the flashboard chamber 61 entered after moving upwards for flashboard spool 1 Handle 7 easily can drive drive rod to rotate, so that flashboard spool 1 be driven to move up and down, realize block fluid or conducting.It is described It is set with outer cover 11 outside thread bush 10, the rubber ring 12 of energy sealed valve cap 6 and 2 junction of valve body is set in outer cover 11, into one Step improves sealing effect, avoids sealed valve cap 6 and 2 junction bleeding leakage problem of valve body.

The utility model can also have other embodiments, other technical sides formed in the record of claims Case is no longer repeated one by one, and the present utility model is not limited to the above embodiments, based on the utility model above-described embodiment Equivalent variations and part replacement are all within the protection scope of the present utility model.

Claims (5)

1. a kind of high leakproofness concealed installation gate valve, including valve body made of copper (2) and can move up and down to cooperate with valve body and block stream The flashboard spool (1) of body is equipped with the drive rod (4) that flashboard spool (1) can be driven to move up and down, the driving on valve body (2) The overhanging end of bar (4) is equipped with driving handle (7), it is characterized in that: being coated with integrally formed PPR shell (5) outside the valve body (2) And the both ends of PPR shell are formed to connecting line (51), the top of valve body (2) with flashboard seal spool under cooperating Portion's sealing ring (3), the top of valve body (2) are connected with valve deck (6), are equipped with middle part sealing ring (8) between valve deck (6) and valve body (2), The top of valve deck (6) is equipped with the sleeve sections being pierced by upwards for drive rod, and upper sealing gasket is housed between sleeve sections and drive rod (9).

2. high leakproofness concealed installation gate valve according to claim 1 is stretched upwards it is characterized in that: being set with outside the valve deck (6) Thread bush (10) out, the driving handle (7) are rotatably connected on the top of thread bush (10) and top and the driving of drive rod Handle connection, lower part and the flashboard spool (1) of the drive rod (4) are spirally connected, and the valve deck (6) is equipped with for flashboard spool (1) The flashboard chamber (61) entered after moving upwards.

3. high leakproofness concealed installation gate valve according to claim 2, it is characterized in that: being set with outer cover outside the thread bush (10) (11), the rubber ring (12) of energy sealed valve cap (6) and valve body (2) junction is set in outer cover (11).

4. high leakproofness concealed installation gate valve according to any one of claim 1-3, it is characterized in that: the valve body (2) is equipped with Outwardly protrude the ear (13) protruded into PPR shell (5).

5. high leakproofness concealed installation gate valve according to any one of claim 1-3, it is characterized in that: the flashboard spool (1) Two sides have the sleeve being spirally connected for drive rod (4) with sealed end face ring (1-1), middle part, and the seal face of sealed end face ring is certainly It is gradually obliquely installed inwards outside to inside, the inner bottom surface of valve body (2) is equipped with the deep gouge being inserted into for flashboard spool bottom, the sealing End face ring is contacted with valve body line.