CN214999480U

CN214999480U - Pressure valve

Info

Publication number: CN214999480U
Application number: CN202121134734.0U
Authority: CN
Inventors: 周栋; 张涛; 龚圆杰; 何海; 范婷
Original assignee: Guangdong Chunmi Electrical Technology Co Ltd
Current assignee: Guangdong Chunmi Electrical Technology Co Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-12-03
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a pressure valve, it includes: the valve seat is provided with a first water inlet, a first water outlet and a second water inlet respectively, the first water inlet and the second water inlet are both configured to be used for flowing water with pressure into the valve seat, and the pressure of water flowing into the valve seat from the second water inlet is greater than that of water flowing into the valve seat from the first water inlet; and the valve rod is movably arranged in the valve seat and is configured to be capable of opening the first water inlet so as to communicate the first water inlet with the first water outlet or close the first water inlet so as to separate the first water inlet from the first water outlet. By means of the action of the water pressure difference, the valve rod can be pushed towards the first water inlet, so that the first water inlet is communicated with the first water outlet, and the pressure valve is switched to be in an opening state to normally work. This scheme adopts pure mechanical structure and realizes opening and closing operating condition switching of pressure valve with the help of the water pressure difference, and structure and theory of operation are simpler, and operational reliability is high.

Description

Pressure valve

Technical Field

The utility model relates to a valve technical field especially relates to a pressure valve.

Background

At present, along with the continuous promotion of people's standard of living, people also are constantly improving the quality requirement of drinking water, based on this, can purify filterable water purification unit to water and obtain wide application. For example, in a home, an office, etc., a water purifying apparatus is usually installed between a water inlet pipeline of municipal tap water and a faucet to filter out impurities, chlorine, germs, etc., so as to improve the quality of drinking water.

The water inlet pipeline of the water purifying equipment is usually provided with a water inlet electromagnetic valve for controlling the water flow to flow into the equipment in an on-off mode. However, the existing water inlet electromagnetic valve has both an electric device for control and signal transmission and a structural member for flowing water. Adopt automatically controlled principle work, not only the structure is complicated, and use cost is high, and the fault rate is higher simultaneously, and the reliability is low, and later stage dimension guarantor is with high costs, is unfavorable for reducing water purification unit's overall cost.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a pressure valve for it is complicated to solve structure among the prior art, and the operational reliability is poor, uses and later stage dimension guarantor problem with high costs.

To achieve one or a part or all of the above or other objects, the present invention provides a pressure valve, including:

the water inlet and the water outlet are configured to be used for flowing pressurized water into the valve seat, and the pressure of water flowing into the valve seat from the second water inlet is greater than that of water flowing into the valve seat from the first water inlet; and

the valve rod is movably arranged in the valve seat and is configured to be capable of opening the first water inlet so as to enable the first water inlet to be communicated with the first water outlet or close the first water inlet so as to enable the first water inlet to be separated from the first water outlet.

In one embodiment, a second water outlet is further arranged on the valve seat, and the second water outlet is communicated with the second water inlet.

In one embodiment, the valve rod comprises a sealing head, the inner wall of the valve seat is provided with a step, and the sealing head can abut against the step to close the first water inlet.

In one embodiment, the pressure valve further comprises a seal disposed on the sealing head, the seal being sealingly engageable against the step.

In one embodiment, the valve rod and the inner wall of the valve seat are in spaced fit to form a water passing channel, one end of the water passing channel is communicated with the first water inlet, and the other end of the water passing channel is communicated with the first water outlet.

In one of them embodiment, the pressure valve still includes the stopper, the stopper set up in on the inner wall of first water inlet and can with it is spacing to seal the head butt, the stopper is equipped with the water hole, the water hole with cross water channel intercommunication.

In one embodiment, the pressure valve further includes a first elastic pressing element, and the first elastic pressing element is arranged between the limiting block and the sealing head in an abutting mode.

In one embodiment, the valve seat is provided with a sliding cavity, and the valve rod further comprises a sliding head which is slidably arranged in the sliding cavity.

In one embodiment, the pressure valve further comprises a sealing ring, the sliding head is provided with a sealing groove, and the sealing ring is inserted into the sealing groove and is in sealing abutting joint with the inner wall of the sliding cavity.

In one embodiment, the pressure valve further includes a fixed block disposed on an inner wall of the sliding cavity, and a second elastic pressing member abutting between the fixed block and the sliding head.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

the pressure valve of the scheme is applied to a water inlet pipeline of a water purification system, and on-off control of water flow can be achieved in a mode that the structure is simpler and the operation reliability is higher. Specifically, when the pressure valve is installed in the water inlet pipeline, the first water outlet needs to be communicated with a water inlet of an additional device (such as a water pump), and the second water inlet needs to be communicated with a water outlet of the pressurizing device. Therefore, when the supercharging equipment is closed, because the second water inlet does not flow pressurized water into the valve seat, and only the first water inlet flows pressurized water into the valve seat, the valve rod is pushed by the water flow flowing into the first water inlet towards the direction of the second water inlet, so that the first water inlet is closed, the first water inlet is separated from the first water outlet, and the pressure valve is in a closed state; after the supercharging equipment is opened, pressurized water also flows into the valve seat from the second water inlet at the moment, the pressure of the water flowing into the valve seat from the second water inlet is greater than that of the water flowing into the valve seat from the first water inlet, and the valve rod is pushed towards the first water inlet under the action of the water pressure difference, so that the first water inlet is communicated with the first water outlet, and the pressure valve is switched to enter an opening state to normally work. Compared with the traditional electric control electromagnetic valve, the scheme adopts a pure mechanical structure and realizes the switching of the opening and closing working states of the pressure valve by means of water pressure difference, the structure and the working principle are simpler, the operation reliability is high, the durability is good, and the manufacturing, use and later maintenance cost can be greatly reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

fig. 1 is a schematic structural diagram of a pressure valve according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pressure valve according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a pressure valve according to another embodiment of the present invention.

Description of reference numerals:

10. a valve seat; 11. a first water inlet; 12. a first water outlet; 13. a second water inlet; 14. a second water outlet; 15. a step; 16. a sliding cavity; 20. a valve stem; 30. a sealing head; 40. a seal member; 50. a water passage; 60. a limiting block; 61. water passing holes; 70. a first elastic pressing member; 80. a sliding head; 90. a seal ring; 100. a fixed block; 110. the second elastic pressing piece.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, a pressure valve shown in an embodiment of the present application, which is specifically a mechanical valve that is controlled by water pressure difference, has the advantages of simple working principle, high reliability, and low use and maintenance costs.

Continuing to refer to FIG. 1, exemplary, a pressure valve includes: a valve seat 10 and a valve stem 20. A first water inlet 11, a first water outlet 12 and a second water inlet 13 are respectively arranged on the valve seat 10, the first water inlet 11 and the second water inlet 13 are both configured to be used for flowing pressurized water into the valve seat 10, and the pressure of the water flow flowing in from the second water inlet 13 is greater than that of the water flow flowing in from the first water inlet 11; the valve rod 20 is movably disposed in the valve seat 10, and the valve rod 20 is configured to open the first water inlet 11 so as to communicate the first water inlet 11 with the first water outlet 12, or close the first water inlet 11 so as to block the first water inlet 11 from the first water outlet 12.

To sum up, implement the embodiment of the utility model provides a, will have following beneficial effect: the pressure valve of the scheme is applied to a water inlet pipeline of a water purification system, and on-off control of water flow can be achieved in a mode that the structure is simpler and the operation reliability is higher. Specifically, when the pressure valve is installed in the water inlet pipeline, the first water outlet 12 needs to be communicated with a water inlet of an additional device (such as a water pump), and the second water inlet 13 needs to be communicated with a water outlet of a pressurizing device.

In this way, when the pressure boosting device is closed, because the second water inlet 13 does not flow pressurized water into the valve seat 10, but only the first water inlet 11 flows pressurized water into the valve seat 10, the valve rod 20 is pushed by the water flow flowing in from the first water inlet 11 toward the second water inlet 13 (i.e., downward in fig. 1), so as to close the first water inlet 11, the first water inlet 11 is isolated from the first water outlet 12, and the pressure valve is in a closed state; after the pressure boosting device is opened, at this time, pressurized water also flows into the valve seat 10 from the second water inlet 13, and the pressure of the water flow flowing in from the second water inlet 13 is greater than the pressure of the water flow flowing in from the first water inlet 11, and by virtue of the water pressure difference, the valve rod 20 is pushed towards the direction of the first water inlet 11 (i.e., towards the upper side in fig. 1), so that the first water inlet 11 is communicated with the first water outlet 12, and the pressure valve is switched to an open state to normally operate.

Compared with the traditional electric control electromagnetic valve, the scheme adopts a pure mechanical structure and realizes the switching of the opening and closing working states of the pressure valve by means of water pressure difference, the structure and the working principle are simpler, the operation reliability is high, the durability is good, and the manufacturing, use and later maintenance cost can be greatly reduced.

Referring to fig. 1, on the basis of the above embodiment, a second water outlet 14 is further disposed on the valve seat 10, and the second water outlet 14 is communicated with the second water inlet 13. The second water outlet 14 is used for communicating with water using equipment. Thus, the water flow pressurized by the pressurization device flows into the valve seat 10 from the second water inlet 13, and in addition to pushing the valve rod 20 upward to open the pressure valve, the water flow also flows out from the second water outlet 14 through the interior of the valve seat 10 to supply water to the water using device.

It will be appreciated that the second water inlet 13 is normally open to the second water outlet 14. Therefore, water flow can directly turn from the second water inlet 13 to flow out from the second water outlet 14, the structure of the pressure valve is simplified, and the water outlet efficiency is improved.

Alternatively, the above-mentioned water consuming device may be a water tap or the like.

With reference to fig. 1, in addition, on the basis of any of the above embodiments, the valve rod 20 includes a sealing head 30, the inner wall of the valve seat 10 is provided with a step 15, and the sealing head 30 can abut against the step 15 to close the first water inlet 11.

The sealing head 30 is embodied as an end cap integrally formed at the upper end of the valve stem 20. The diameter of the end cap is larger than the diameter of the valve stem 20 to form an inverted structure. When the pressurized water flowing into the first water inlet 11 acts on the sealing head 30, the valve rod 20 is pushed downwards, and the sealing head 30 is buckled and fixed on the step 15 through the inverted buckle structure, so that the first water inlet 11 can be blocked, the water flow is prevented from flowing into the pressure valve, and the pressure valve is enabled to enter a closed state.

With reference to fig. 1, the pressure valve further includes a sealing element 40, the sealing element 40 is disposed on the sealing head 30, and the sealing element 40 can abut against and be in sealing engagement with the step 15. Specifically, the sealing member 40 is provided as a rubber pad that is snap-fitted to the inverted structure. After valve rod 20 slided downwards, and under the pressure effect of rivers, the rubber pad can tightly compress tightly on step 15, can play better sealed effect to rivers with the help of the deformation effect of rubber pad to promote the sealed water blocking performance of pressure valve under the closed condition.

Of course, it should be noted that, in other embodiments, other technical means in the prior art may also be used to realize the sealing of the first water inlet 11 between the sealing head 30 and the valve seat 10, and the sealing is flexibly selected according to actual needs.

With continued reference to fig. 1, in some embodiments, the valve stem 20 and the inner wall of the valve seat 10 are in spaced fit to form a water passage 50, one end of the water passage 50 is communicated with the first water inlet 11, and the other end of the water passage 50 is communicated with the first water outlet 12. Therefore, when the valve rod 20 moves upwards to switch the pressure valve into an open state, the water flowing into the first water inlet 11 can flow through the water passage 50 and finally flows into the supercharging equipment from the first water outlet 12, and the water flow is guaranteed to be smooth.

Referring to fig. 1, in still another embodiment, the pressure valve further includes a limiting block 60, the limiting block 60 is disposed on an inner wall of the first water inlet 11 and can abut against and limit the sealing head 30, the limiting block 60 is provided with a water passing hole 61, and the water passing hole 61 is communicated with the water passing channel 50. In this way, the stopper 60 abuts against the seal head 30 which has moved up to the limit position, and restricts the valve stem 20 from moving up too much to be flushed out of the valve seat 10. On the basis, the water through hole 61 formed on the limiting block 60 can allow water to normally flow into the water passage 50.

Optionally, the stopper 60 may be integrally formed with the valve seat 10, or may be detachably connected, specifically selected according to actual needs.

With reference to fig. 2, the pressure valve further includes a first elastic pressing element 70, and the first elastic pressing element 70 is disposed between the stopper 60 and the sealing head 30 in an abutting manner. The first elastic pressing member 70 is used for increasing the force for pushing the valve rod 20 to move downwards, so that when the water inlet pressure of the first water inlet 11 is relatively small, the sealing head 30 at the end of the valve rod 20 can still press the step 15, and effective water sealing is realized.

The first elastic pressing member 70 may be a spring, an elastic column, an elastic sheet, or the like. For example, the first elastic pressing member 70 in this embodiment is a spring.

With reference to fig. 1, on the basis of any of the above embodiments, the valve seat 10 is provided with a sliding cavity 16, and the valve stem 20 further includes a sliding head 80, wherein the sliding head 80 is slidably disposed in the sliding cavity 16. Thus, the sliding head 80 slides up and down in the sliding chamber 16, which helps the valve rod 20 to move stably and accurately switch the working state of the pressure valve.

In order to avoid the valve rod 20 from wobbling in the valve seat 10 and to improve the sealing of the sliding head 80 with the sliding chamber 16, the diameter of the sliding head 80 and the diameter of the sliding chamber 16 are designed to be matched.

Further, in order to improve the sealing matching performance of the sliding head 80 and the sliding cavity 16, the pressure valve further comprises a sealing ring 90, the sliding head 80 is provided with a sealing groove, and the sealing ring 90 is inserted into the sealing groove and is in sealing abutment with the inner wall of the sliding cavity 16.

For example, the sealing ring 90 is a rubber ring or other sealing member with equivalent technical effect.

According to actual needs, two or more than two sealing rings 90 can be arranged at the same time to form a multi-sealing effect.

Still referring to fig. 3, in a further step, the pressure valve further includes a fixing block 100 and a second elastic pressing element 110, the fixing block 100 is disposed on the inner wall of the sliding cavity 16, and the second elastic pressing element 110 is abutted between the fixing block 100 and the sliding head 80. The fixing block 100 is used for fixing the second elastic pressing element 110. The second elastic pressing member 110 is used to increase the force for pushing the valve rod 20 to move upward to overcome the frictional resistance between the sliding head 80 and the sliding cavity 16, which causes the problem that the valve rod 20 is difficult to move upward.

Optionally, the fixing block 100 may be integrally formed with the valve seat 10, or may be detachably connected, specifically selected according to actual needs.

Alternatively, the second elastic pressing element 110 may be a spring, an elastic column, an elastic sheet, or the like. For example, the second elastic pressing element 110 in this embodiment is a spring.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A pressure valve, comprising:

2. The pressure valve of claim 1, wherein said valve seat further defines a second water outlet, said second water outlet being in communication with said second water inlet.

3. The pressure valve according to claim 1, wherein said stem comprises a sealing head, the inner wall of said valve seat being provided with a step, said sealing head being capable of abutting against said step to close said first water inlet.

4. The pressure valve of claim 3, further comprising a seal disposed on said sealing head, said seal capable of sealing engagement against said step.

5. The pressure valve of claim 4, wherein the valve stem and the inner wall of the valve seat are in spaced fit to form a water passage, one end of the water passage is communicated with the first water inlet, and the other end of the water passage is communicated with the first water outlet.

6. The pressure valve according to claim 5, further comprising a limiting block, wherein the limiting block is arranged on the inner wall of the first water inlet and can be abutted against and limited by the sealing head, and the limiting block is provided with a water through hole which is communicated with the water through channel.

7. The pressure valve according to claim 6, further comprising a first elastic pressing member disposed in abutment between said stopper and said sealing head.

8. The pressure valve of claim 3, wherein said valve seat defines a sliding chamber and said valve stem further includes a sliding head slidably disposed within said sliding chamber.

9. The pressure valve of claim 8, further comprising a sealing ring, wherein the sliding head defines a sealing groove, and the sealing ring is inserted into the sealing groove and sealingly abuts against an inner wall of the sliding chamber.

10. The pressure valve according to claim 8, further comprising a fixed block disposed on an inner wall of the sliding chamber and a second elastic pressing member abutting between the fixed block and the sliding head.