CN210484661U

CN210484661U - Plastic valve core

Info

Publication number: CN210484661U
Application number: CN201921115218.6U
Authority: CN
Inventors: 王波
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-05-08
Anticipated expiration: 2029-07-16

Abstract

The utility model provides a plastic valve core belongs to valve technical field. The problem that how to reduce the weight of the valve core and improve the service life of the valve core is solved. The plastic valve core comprises a valve core shell, a valve core rod, a movable valve sheet and a static valve sheet, wherein a cavity is formed inside the valve core shell, the valve core rod is arranged in the cavity and can be in running fit with the valve core shell, the valve core shell comprises a lower shell and a gland positioned above the lower shell, the valve core rod, the movable valve sheet and the static valve sheet are all made of plastic, an installation part is arranged at the upper end of the valve core rod, the movable valve sheet is clamped on the installation part, the static valve sheet is clamped inside the valve body, the lower surface of the movable valve sheet is attached to the upper surface of the static valve sheet, the static valve sheet is provided with a water through. The plastic valve core optimizes the structure of the valve core on the premise of reducing the weight of the valve core, and greatly prolongs the service life of the valve core.

Description

Plastic valve core

Technical Field

The utility model belongs to the technical field of the valve, a case is related to, especially, relate to a plastic valve core.

Background

Generally, a valve core assembly of a water faucet is installed and fixed in a valve core seat, the valve core seat of the general water faucet is integrally formed by brass materials, but the cost of a copper valve core is greatly increased due to the high price of the brass materials, and the manufacturing process of the copper valve core seat needs to be subjected to complex machining and subsequent treatment, so that a large amount of equipment and human resources are consumed, and the energy consumption is greatly increased. Moreover, the valve core seat made of copper contains heavy metal substances (such as lead, cadmium or other heavy metal ions), and the heavy metal ions can be slowly released into water in the long-term use process, so that the water quality is influenced, and the harm is brought to human bodies. In addition, the copper valve core is difficult to process and heavy in weight.

In current bathroom trade, the switch in angle valve as the water route is generally all equipped with to the front end of intaking of various taps, and the switch case that the angle valve used generally all is that the outer wall is from taking the copper valve core of locking screw thread, and when installation case on the angle valve, the pulling force of screw thread forms a reaction moment with the holding power of angle valve assembly terminal surface, makes the case bear the pressure and the reaction force of water for a long time simultaneously to reduce the life of case, the case exists bursts and causes the hidden danger of leaking.

Therefore, the problem to be solved is not very slow at present.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a plastic valve core, the technical problem that solve is the life who improves the case when how to reduce case weight.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a plastic valve core, includes case shell, case pole and moves, quiet valve piece, the inside vacuole formation of case shell, the case pole is established in the cavity and can with case shell normal running fit, its characterized in that, the case shell includes the casing down and is located the gland of casing top down, case shell, case pole and move, quiet valve piece are made by plastics, case pole upper end is equipped with the installation department, and the movable valve piece clamps on the installation department, quiet valve piece card is inside the valve body, the laminating of movable valve piece lower surface and quiet valve piece upper surface, quiet valve piece is provided with the limbers, the movable valve piece lower extreme set up with limbers assorted water gap.

The valve core shell, the valve core rod and the movable valve plate and the static valve plate are all made of plastic, so that the production cost is greatly reduced, the plastic product is light and convenient to install, the weight of the whole valve is also reduced, the plastic product is used, heavy metal pollution is avoided, and the water quality is better and safer.

The movable valve plate is fixedly connected with the mounting part, a water passing notch is formed in the movable valve plate, and the static valve plate is fixedly connected to the inner wall of the valve body. The lower surface of the movable valve plate is attached to the upper surface of the static valve plate, the outer surface of the movable valve plate covers the outer surface of the static valve plate and is smooth and flat in process, and when the lower surface of the movable valve plate is attached to the upper surface of the static valve plate, sealing is formed between the lower surface of the movable valve plate and the upper surface of the static valve plate.

In the plastic valve core, the lower end face of the gland is provided with a convex shoulder which can be abutted against the lower end face of the static valve plate, and the position of the gland, which is right opposite to the water through hole of the static valve plate, is provided with a water through groove.

The arrangement of the convex shoulder can apply an axial force towards the movable valve plate to the static valve plate, so that the movable valve plate can be abutted against the static valve plate more tightly, and the sealing effect is improved. The shoulder also enables the static valve plate to firmly abut against the inner wall of the lower shell to limit the axial displacement of the static valve plate. Prevent the valve core from being damaged because the static valve sheet falls out when the water flow is overlarge or flows back.

In the plastic valve core, the periphery of the static valve piece is provided with a clamping groove, and the inner wall of the valve body is provided with a clamping block matched with the clamping groove.

In above-mentioned plastic valve core, gland and lower casing joint, be equipped with the flange on the terminal surface under the gland, the flange can support with lower casing upper end medial surface formation and lean on, still be equipped with the lug on the gland outer peripheral face, be equipped with on the casing up end down and can match the cooperation portion with the lug mutually.

The gland engages with the lower housing and the engagement is common knowledge and will not be explained here. The flange can be accomplished with lower casing upper end medial surface and support to lean on forming one and heavily sealed when the joint, and the cooperation portion on the casing up end can form the second with the lug cooperation and heavily sealed down. The double sealing greatly improves the sealing effect of the valve body.

In the plastic valve core, the two water through holes and the two water passing notches are symmetrically arranged, and the bottom surface of the valve core rod is provided with a water passing channel communicated with the two water passing notches.

In the plastic valve core, the water through hole and the water passing notch are both arranged in a fan shape.

The fan-shaped setting makes when opening the case, and the limbers can keep very even opening with crossing the water breach for rivers keep gentle circulation, can not cause the too big excessive damage valve body of velocity of flow.

In the plastic valve core, the lower end of the lower shell is provided with a mounting hole, the valve core rod part penetrates through the mounting hole, the outer peripheral surface of the valve core rod is provided with an annular groove, the O-shaped gasket is arranged in the annular groove, and the O-shaped gasket can abut against the inner wall of the mounting hole to form sealing.

The valve core rod port penetrating through the mounting hole is provided with the sawtooth-shaped threads for connecting a handle or a switch knob, and the design is simple, convenient and practical. The outer side wall of the middle section of the valve core rod is provided with an annular groove and further comprises an O-shaped gasket, the O-shaped gasket is arranged in the annular groove, and the O-shaped gasket and the inner wall of the mounting hole form sealing, so that water flow cannot flow out from one end of the mounting hole. Two annular grooves and two O-shaped gaskets are arranged on the valve core rod, and the sealing performance is greatly improved due to the double sealing effect.

Compared with the prior art, this plastic valve core case, case pole and move, quiet valve plate are made by plastics, and the benefit that plastics were made lies in having alleviateed manufacturing cost greatly, and plastic products is light, and simple to operate also makes the weight reduction of whole valve, and plastic products uses and has also avoided heavy metal pollution for quality of water is better safer.

The internal components are only the valve core rod, the movable valve plate and the static valve plate, the structure is simple, the damage probability of the components can be effectively reduced, and the service life of the valve core is greatly prolonged.

Drawings

FIG. 1 is an assembled front view of a plastic valve cartridge;

FIG. 2 is a detail view of the gland of the plastic poppet;

FIG. 3 is a detail view of a static plate of the plastic poppet;

FIG. 4 is a detail view of the movable plate of the plastic valve core;

FIG. 5 is a detail view of the lower housing of the plastic cartridge;

fig. 6 is a detail view of a core rod of a plastic core.

In the figure, 1, a valve core shell; 11. a lower housing; 111. a fitting portion; 12. a gland; 121. A shoulder is formed; 122. a water passing through groove; 123. a flange; 124. a bump; 13. mounting holes; 2. a valve core rod; 21. an installation part; 211. a water passage; 22. an annular groove; 23. An O-shaped gasket; 3. a movable valve plate; 31. a water passing notch; 4. a static valve plate; 41 water through holes; 42. a clamping groove.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the outer peripheral surface of a valve core rod 2 close to a lower port is provided with a sawtooth thread for connecting a handle or a switch knob, and the plastic valve core is simple, convenient and practical in design. An annular groove 22 is formed in the outer side wall of the middle section of the valve core rod 2, an O-shaped gasket 23 is arranged in the annular groove 22, and the O-shaped gasket 23 and the inner wall of the mounting hole 13 form sealing, so that water flow cannot flow out from one end of the mounting hole 13. The valve core rod of the embodiment is provided with two annular grooves 22 and two O-shaped gaskets 23, and the sealing performance is greatly improved due to the double sealing effect.

The upper end of the valve core rod 2 is provided with an installation part 21, the movable valve plate 3 is clamped on the installation part, the lower end of the movable valve plate 3 is provided with a water passing notch 31, the water passing notch 31 is of a fan-shaped structure, and the static valve plate 4 is clamped inside the valve body and cannot axially rotate. The lower surface of the movable valve plate 3 is attached to the upper surface of the static valve plate 4, the static valve plate 4 is provided with a water through hole 41, the water through hole 41 is also of a fan-shaped structure, when the valve core is filled with water, the valve core rod 2 is rotated to drive the movable valve plate 3 to rotate until the water passing notch 31 is opposite to the water through hole 41, and a water passing channel is formed to complete opening of the valve core.

Have on the gland 12 and cross water through groove 122, it is just right with limbers 41 to cross water through groove 122 position, be close to the lower terminal surface that crosses water through groove 122, terminal surface is equipped with convex shoulder 121 under the gland 12, convex shoulder 121 can support with 4 lower terminal surfaces of static valve piece and lean on, restriction static valve piece 4 carries out axial displacement, convex shoulder 121 extrudes static valve piece 4 simultaneously and can form hard seal, 4 extrusion movable valve pieces of static valve piece also can form hard seal, make rivers can be stable follow and cross water through groove 122, limbers 41 and cross and pass through in the water breach 31, great reinforcing the structural strength and the stability of case. The water passing through groove 122 is arranged on the gland 12 and is opposite to the water passing hole 41, so that water flow is facilitated, resistance is reduced, and the service life of the valve body is effectively prolonged.

The cap 12 is snap-fitted to the lower housing 11, the snap-fitting being common knowledge and not explained here. The flange 123 can be accomplished to support with lower casing 11 upper end medial surface and lean on forming one while the joint, and cooperation portion 111 on the lower casing 11 upper end can cooperate with lug 124 and form the second and reseal. The double sealing greatly improves the sealing effect of the valve body.

When assembling, the rod body of the valve core rod 2 needs to pass through the mounting hole 13 on the lower shell 11, then the movable valve plate 3 and the mounting part 21 are sequentially placed in a clamping manner, then the static valve plate 4 is placed in a clamping manner on the inner wall of the lower shell 11, then the gland 12 is covered and the lower shell 11 is clamped, so that the assembling can be completed, the outer side wall of the lower shell 11 is provided with a water outlet right opposite to the water passing notch 31, water flows through the water through groove 122, flows through the water through hole 41 and flows into the pipeline from the water outlet through the water notch 31, the structure is simple.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A plastic valve core comprises a valve core shell (1), a valve core rod (2), a movable valve plate (3) and a static valve plate (4), wherein a cavity is formed inside the valve core shell (1), the valve core rod (2) is arranged in the cavity and can be matched with the valve core shell (1) in a rotating mode, the plastic valve core is characterized in that the valve core shell (1) comprises a lower shell (11) and a gland (12) located above the lower shell (11), the valve core shell (1), the valve core rod (2), the movable valve plate (3) and the static valve plate (4) are all made of plastic, an installation portion (21) is arranged at the upper end of the valve core rod (2), the movable valve plate (3) is clamped on the installation portion (21), the static valve plate (4) is clamped inside the valve core shell (1), the lower surface of the movable valve plate (3) is attached to the upper surface of the static valve plate (4), a water through hole (41) is, the lower end of the movable valve plate (3) is provided with a water passing notch (31) matched with the water through hole (41).

2. The plastic valve core as claimed in claim 1, characterized in that the lower end face of the gland (12) is provided with a shoulder (121), the shoulder (121) can abut against the lower end face of the static valve plate (4), and the gland (12) is provided with a water passing through groove (122) at a position opposite to the water passing hole (41) of the static valve plate (4).

3. The plastic valve core according to claim 1, wherein a clamping groove (42) is formed in the periphery of the static valve plate (4), and a clamping block matched with the clamping groove (42) is arranged on the wall of an inner cavity of the valve core shell (1).

4. The plastic valve core as claimed in claim 1, wherein the gland (12) is clamped with the lower shell (11), a flange (123) is arranged on the upper end face of the gland (12), the flange (123) can abut against the inner side face of the upper end of the lower shell (11), a convex block (124) is further arranged on the outer peripheral face of the gland (12), and a matching portion (111) which can match with the convex block (124) is arranged on the upper end face of the lower shell (11).

5. The plastic valve core according to claim 1, wherein the two water through holes (41) and the two water passing notches (31) are symmetrically arranged, and the mounting part (21) of the valve core rod (2) is provided with a water passing channel (211) communicated with the two water passing notches (31).

6. A plastic valve trim according to claim 5, characterized in that the water passage opening (41) and the water passage opening (31) are both provided in the shape of a sector.

7. The plastic valve core of claim 1, wherein the lower end of the lower shell (11) is provided with a mounting hole (13), the valve core rod (2) partially penetrates through the mounting hole (13), the outer peripheral surface of the valve core rod (2) is provided with an annular groove (22), and the plastic valve core further comprises an O-shaped gasket, wherein the O-shaped gasket (23) is arranged in the annular groove (22), and the O-shaped gasket (23) can abut against the inner wall of the mounting hole (13) to form a seal.