CN220850755U

CN220850755U - Low-cost constant voltage constant current solenoid valve

Info

Publication number: CN220850755U
Application number: CN202322557212.7U
Authority: CN
Inventors: 孔万峰; 王休雷; 蔡晓晓; 颜小小; 周宇; 王东
Original assignee: Zhejiang Meishuo Electric Technology Co ltd
Current assignee: Zhejiang Meishuo Electric Technology Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-04-26
Anticipated expiration: 2033-09-19

Abstract

The utility model discloses a low-cost constant-pressure constant-current electromagnetic valve, which comprises: the body is provided with a water inlet cavity, and a water inlet channel is arranged in the water inlet cavity; the valve core assembly comprises a valve core, a first sealing element is sleeved on the valve core, the valve core extends to the water inlet channel, a first channel is formed between the outer wall of the valve core and the inner wall of the water inlet channel, and the first channel is positioned on the movement track of the first sealing element; one end of the energy storage component is propped against the water inlet cavity, the other end of the energy storage component is propped against the valve core component, and the energy storage component has a preset pressure value; when the pressure of the water entering the water inlet cavity is larger than a preset pressure value, the valve core is driven by the pressure of the water to move towards the water inlet channel, and the first sealing piece seals the first channel; when the pressure of water entering the water inlet cavity is smaller than or equal to a preset pressure value, the energy storage assembly drives the valve core to move towards the direction away from the water inlet channel, and the first channel is opened. The effect of flow regulation is realized by adopting the first sealing piece, the structure of the valve core is simpler, and the processing is more convenient, thereby reducing the cost.

Description

Low-cost constant voltage constant current solenoid valve

Technical Field

The utility model relates to the technical field of electromagnetic valves, in particular to a low-cost constant-pressure constant-current electromagnetic valve.

Background

Solenoid valves (Solenoid valve) are solenoid-operated industrial equipment, are automated basic components for controlling fluids, and are actuators, not limited to hydraulic and pneumatic. When the electromagnetic valve is used in a waterway, a constant pressure and constant flow state of the waterway needs to be ensured, so that a corresponding structure needs to be added to meet the functional effect. For example, chinese patent publication No. CN 214618035U, entitled "constant pressure and constant flow inlet pressure reducing valve", discloses a pressure reducing valve for realizing constant pressure and constant flow.

The gap between the copper core and the pressure relief hole is adjusted, so that the adjusting effect is achieved. However, the copper core with the structure has complex shape, and the conical surface needs to be machined on the surface of the copper core, so that the machining cost is greatly increased, the machining cost is reduced, and the effect of constant voltage and constant current can be realized, so that the technical problem which is continuously solved by the technicians in the field is solved.

Disclosure of utility model

Therefore, the utility model aims to solve the technical problems of reducing the processing cost and realizing the effects of constant voltage and constant current. To this end, the present utility model provides a low-cost constant-pressure constant-current solenoid valve comprising:

The device comprises a body, a water inlet cavity and a water inlet pipe, wherein the body is internally provided with the water inlet cavity, and the water inlet cavity is internally provided with a water inlet channel communicated with the interior of the body;

The valve core assembly is positioned in the water inlet cavity and comprises a valve core, a first sealing element is sleeved on the valve core, the valve core extends to the water inlet channel, a first channel is formed between the outer wall of the valve core and the inner wall of the water inlet channel, and the first channel is positioned on the movement track of the first sealing element;

the energy storage component is positioned in the water inlet cavity, one end of the energy storage component is propped against the water inlet cavity, the other end of the energy storage component is propped against the valve core component, and the energy storage component has a preset pressure value;

When the pressure of the water entering the water inlet cavity is larger than the preset pressure value, the valve core is driven by the pressure of the water to move towards the water inlet channel, and the first sealing piece seals the first channel; when the pressure of water entering the water inlet cavity is smaller than or equal to the preset pressure value, the energy storage component drives the valve core to move towards the direction away from the water inlet channel, and the first channel is opened.

The opening of the water inlet channel is provided with a guide surface, and the guide surface extends towards the inside of the water inlet channel and gradually reduces in size.

The opening of the water inlet channel is also provided with a first plane, the first plane is connected with one end of the guide surface, and the first plane is positioned on the movement track of the first sealing element.

The valve core is provided with a fixing groove, and the first sealing piece is sleeved in the fixing groove.

The valve core assembly further comprises a connecting piece, the connecting piece is linked with the valve core, a second channel is arranged between the connecting piece and the valve core, and the second channel is communicated with the water inlet channel.

The body comprises a water inlet pipe and a valve seat, and the water inlet pipe is matched with the valve seat to form the water inlet cavity.

The water inlet pipe is internally provided with a plurality of third channels distributed in a circumferential array.

The valve seat is provided with a first fixed cavity, the valve core assembly extends into the first fixed cavity, and a second sealing piece is arranged between the valve core assembly and the inner wall of the first fixed cavity.

The valve seat is provided with a second fixed cavity, the first fixed cavity is positioned at the inner side of the second fixed cavity, and one end of the energy storage component is propped against the bottom surface of the second fixed cavity.

One of the valve seat and the water inlet pipe is provided with a positioning block, and the other one of the valve seat and the water inlet pipe is provided with a positioning groove matched with the positioning block.

The technical scheme of the utility model has the following advantages:

1. The low-cost constant-pressure constant-current electromagnetic valve provided by the utility model has the advantages that the effect of flow regulation is realized by adopting the first sealing element, the valve core is simpler in structure and more convenient to process, and the cost is reduced. When the pressure of water entering the water inlet cavity is smaller than or equal to a preset pressure value, the energy storage component drives the valve core to move towards the direction away from the water inlet channel, the first channel is opened, water flows to the inside of the body through the first channel, and the output water achieves the constant pressure and constant flow effect due to the fact that the size of the first channel is constant. When the pressure of water entering the water inlet cavity is larger than a preset pressure value, the energy storage component drives the valve core to move towards the water inlet channel, the first sealing piece is attached to the opening position of the water inlet channel and moves continuously, the first sealing piece deforms, so that the effect of sealing the first channel is achieved, and the water inlet cavity is sealed and communicated with the inside of the body.

2. The guide surface of the constant-pressure constant-current electromagnetic valve provided by the utility model has a wide-mouth effect, so that water can better enter the first channel.

3. According to the low-cost constant-pressure constant-current electromagnetic valve provided by the utility model, after the first sealing element is deformed, the first sealing element is attached to the first plane, so that the contact area is increased, and the sealing stability is improved.

4. The low-cost constant-pressure constant-current electromagnetic valve provided by the utility model has the advantages that the fixing groove is arranged, the fixing effect of the first sealing element is better realized, and the purpose of convenient installation is achieved.

5. According to the low-cost constant-pressure constant-current electromagnetic valve provided by the utility model, the second channel forms a buffering effect, and external water inflow reduces the flow rate of water flow through the second channel.

6. The low-cost constant-pressure constant-current electromagnetic valve provided by the utility model has the advantages that the third channel also has a buffering effect, and the flow speed of water flow is reduced.

7. According to the low-cost constant-pressure constant-current electromagnetic valve, the first fixing cavity is used for being matched with the valve core assembly, so that the positioning installation and guiding effects of the valve core assembly are achieved, and the valve core assembly is prevented from shifting and shaking in the moving process.

8. According to the low-cost constant-voltage constant-current electromagnetic valve provided by the utility model, the energy storage component is positioned in the second fixed cavity, so that the energy storage and release stability of the energy storage component is improved.

9. According to the low-cost constant-pressure constant-current electromagnetic valve, the positioning block is matched with the positioning groove, so that the convenience in installation is improved, and the installation efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a low-cost constant-pressure constant-current solenoid valve;

FIG. 2 is a side view of a low cost constant pressure and constant current solenoid valve according to the present utility model;

FIG. 3 is a cross-sectional view of a low cost constant pressure and constant flow solenoid valve according to the present utility model;

FIG. 4 is an enlarged view of a portion A of FIG. 3;

FIG. 5 is a schematic structural view of a valve core assembly according to the present utility model;

fig. 6 is a top view of fig. 5.

Reference numerals illustrate:

11. A body; 12. a water inlet cavity; 13. a water inlet channel; 14. a valve core; 15. a first seal; 16. a first channel; 17. an energy storage assembly; 18. a connecting piece; 19. a second channel; 20. a water inlet pipe; 21. a valve seat; 22. a second seal; 23. a third seal; 24. a positioning block; 25. a positioning groove; 131. a guide surface; 132. a first plane; 141. a fixing groove; 142. an extension; 201. a third channel; 202. a closed end; 211. a first fixed cavity; 212. a second fixed cavity;

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

This embodiment provides a low-cost constant-pressure constant-current solenoid valve, as illustrated in fig. 1-6, comprising:

The body 11 is provided with the water inlet cavity 12 therein, one end of the water inlet cavity 12 is connected with an external waterway, the external waterway enters the body 11 through the water inlet cavity 12 and then flows out through the water outlet cavity, and the structure of the water outlet cavity is irrelevant to the technical scheme protected by the embodiment, so that description is not expanded. The other end of the water inlet cavity 12 is communicated with the inside of the body 11 through a water inlet channel 13 in the water inlet cavity 12, namely, after external water enters the water inlet cavity 12, the external water enters the inside of the body 11 through the water inlet channel 13, and an area which is specifically matched with an electromagnetic assembly in the body 11 is formed in the area, so that an electromagnetic switch area is realized.

The valve core assembly is located in the water inlet cavity 12, and the valve core assembly moves axially relative to the water inlet cavity 12, namely, the valve core assembly reciprocates along the axial direction of the water inlet cavity 12, as shown in the drawing, and can be regarded as horizontal left-right movement. The valve core assembly comprises a valve core 14, a first sealing element 15 is sleeved on the valve core 14, the first sealing element 15 is in linkage with the valve core 14, and when the valve core 14 moves, the first sealing element 15 moves along with the valve core. The valve cartridge 14 extends to the water inlet channel 13. In this embodiment, during the movement of the valve core 14, the end of the valve core 14 extending into the water inlet channel 13 is preferably located in the water inlet channel 13, which mainly has a guiding effect to prevent the movement of the valve core 14 from shifting. When the valve core 14 moves out of the water inlet channel 13, the valve core 14 can be guided to move into the water inlet channel 13 again through other parts of the valve core assembly. A first channel 16 is formed between the outer wall of the valve core 14 and the inner wall of the water inlet channel 13. In this embodiment, the valve core 14 is cylindrical, and the water inlet channel 13 is also hollow and cylindrical, so the first channel 16 forms a ring-like channel. The width of the first channel 16 can be adjusted according to actual requirements to ensure the flow rate under normal water pressure and low water pressure. The first channel 16 is located on the motion track of the first sealing element 15, because the first sealing element 15 is linked with the valve core 14, when the valve core 14 moves towards the water inlet channel 13, the first sealing element 15 moves along with the valve core, the first sealing element 15 abuts against the opening position of the water inlet channel 13, and the first sealing element 15 deforms to seal the first channel 16.

The energy storage component 17 is positioned in the water inlet cavity 12, one end of the energy storage component 17 is propped against the water inlet cavity 12, and the other end of the energy storage component 17 is propped against the valve core component, so that the fixing effect of the energy storage component 17 is formed. After the installation and fixation, the energy storage component 17 has a preset pressure value, in this embodiment, the preset pressure value can be adjusted according to the actual situation, and the adjustment of the preset pressure value can be achieved by adjusting the distance between the two ends of the energy storage component 17. The first sealing element 15 is adopted to achieve the effect of flow regulation, the valve core 14 is simpler in structure and more convenient to process, and therefore the cost is reduced. When the pressure of the water entering the water inlet cavity 12 is smaller than or equal to a preset pressure value, the energy storage component 17 drives the valve core 14 to move towards a direction away from the water inlet channel 13, the first channel 16 is opened, the water flows into the body 11 through the first channel 16, and the output water achieves a constant pressure and constant flow effect due to the fact that the size of the first channel 16 is constant. When the pressure of water entering the water inlet cavity 12 is larger than a preset pressure value, the energy storage assembly 17 drives the valve core 14 to move towards the water inlet channel 13, the first sealing element 15 is attached to the opening position of the water inlet channel 13 and moves continuously, the first sealing element 15 deforms, and therefore the effect of sealing the first channel 16 is achieved, and at the moment, the water inlet cavity 12 is sealed and communicated with the inside of the body 11.

Specifically, as shown in fig. 4, the opening of the water inlet channel 13 is provided with a guiding surface 131, and the guiding surface 131 extends toward the inside of the water inlet channel 13 and gradually reduces in size. The guide surface 131 creates a wide mouth effect allowing better entry of water into the first channel 16. In addition to the present embodiment, the opening of the water inlet passage 13 may be a right angle surface.

Specifically, as shown in fig. 4, the opening of the water inlet channel 13 is further provided with a first plane 132, where the first plane 132 is connected to one end of the guiding surface 131, and the first plane 132 is closest to the side of the valve core assembly, and the first plane 132 is located on the movement track of the first sealing element 15. When the first sealing member 15 is deformed, the first sealing member 15 is attached to the first plane 132, so that the contact area is increased, and the sealing stability is improved.

Specifically, as shown in fig. 4, the valve core 14 is provided with a fixing groove 141, and the first sealing member 15 is sleeved in the fixing groove 141. The fixing groove 141 is provided to better realize the fixing effect of the first sealing member 15, thereby achieving the purpose of facilitating the installation. Further, an extension portion 142 is disposed on a side of the fixing groove 141 away from the water inlet channel 13, and the extension portion 142 extends radially outwards, so that a diameter of the extension portion 142 is larger than that of the first sealing member 15, and after the first sealing member 15 is attached to the opening of the water inlet channel 13, the valve core assembly moves, and the extension portion 142 also applies pressure to the first sealing member 15, so that the first sealing member 15 deforms.

Specifically, as shown in fig. 3 and 5-6, the valve core assembly further includes a connecting member 18, where the connecting member 18 is linked with the valve core 14, and the connecting member 18 and the valve core 14 may be in an integral structure, and the connecting member 18 and the valve core 14 may be in a split structure, and form a linkage effect therebetween through a buckle or other matching. A second channel 19 is arranged between the connecting piece 18 and the valve core 14, and the second channel 19 is communicated with the water inlet channel 13. The second channel 19 creates a cushioning effect and external water inflow through the second channel 19 reduces the water flow rate. In this embodiment, the number of the second channels 19 may be plural, and the size of the second channels 19 is smaller than the inner diameter of the whole water inlet pipe, so as to form a flow-limiting effect, where the size of the second channels 19 may be adjusted according to actual requirements. The cross-sectional shape of the second channel 19 may be circular, square, etc. In addition, the other end of the energy storage component 17 is abutted against the connecting piece 18 to form a fixing effect.

Specifically, as shown in fig. 1-3, the body 11 includes a water inlet tube 20 and a valve seat 21, and the water inlet tube 20 cooperates with the valve seat 21 to form the water inlet chamber 12. The two mutually independent components are matched, so that the processing difficulty is reduced. In addition, the body 11 may be integrally formed to directly form a water inlet chamber 12.

Specifically, as shown in fig. 2, a plurality of third channels 201 distributed in a circumferential array are provided in the water inlet pipe 20. The third channel 201 also has a buffer effect to reduce the flow rate of water. In this embodiment, the third channel 201 is located at the forefront end, and the external water path passes through the third channel 201, the second channel 19, and then enters the body 11 through the first channel 16. The structure and shape of the third channel 201 can be adjusted according to actual requirements.

Specifically, as shown in fig. 3, the valve core 14 has a hollow structure, two ends of the valve core are arranged in a penetrating manner, a closed end 202 is arranged on the water inlet pipe 20, and one end of the valve core 14 extends into the closed end 202 to form a closed effect of one end. The other end of the valve core 14 extends into the water inlet channel 13, so that communication with the interior of the body 11 is realized, and an isobaric effect with the interior of the body 11 is formed.

Specifically, as shown in fig. 3, the valve seat 21 is provided with a first fixed cavity 211, the water inlet channel 13 is located in the first fixed cavity 211, and the water inlet channel 13 and the first fixed cavity 211 are coaxially disposed. The valve core assembly extends into the first fixed chamber 211, and in particular the connector 18 extends into the first fixed chamber 211. A second seal 22 is provided between the connecting member 18 and the inner wall of the first fixing chamber 211. The first fixing cavity 211 is used for being matched with the valve core assembly, so that positioning, installation and guiding effects of the valve core assembly are formed, and the valve core assembly is prevented from shifting and shaking in the moving process. The second seal 22 is to achieve a sealing effect.

Specifically, as shown in fig. 3, the valve seat 21 is provided with a second fixing chamber 212, the first fixing chamber 211 is located inside the second fixing chamber 212, and the side walls of the first fixing chamber 211 form a separation therebetween. In this embodiment, the second fixing cavity 212 has a ring structure. One end of the energy storage component 17 abuts against the bottom surface of the second fixing cavity 212, and the other end of the energy storage component 17 abuts against the connecting piece 18. A third seal 23 is provided between the connecting member 18 and the inner wall of the inlet chamber 12. The third seal 23 also achieves a sealing effect.

Specifically, as shown in fig. 3, a positioning block 24 is provided on one of the valve seat 21 and the water inlet pipe 20, and a positioning groove 25 matched with the positioning block 24 is provided on the other one of the valve seat 21 and the water inlet pipe 20. The matching of the positioning block 24 and the positioning groove 25 forms the effect of positioning and fixing. The convenience of installation is improved, and the installation efficiency is improved. When the positioning block 24 is positioned on the valve seat 21, the positioning groove 25 is positioned on the water inlet pipe 20; when the positioning groove 25 is located on the valve seat 21, the positioning block 24 is located on the water inlet pipe 20.

Specifically, valve seat 21 is bolted to inlet tube 20. After the valve seat 21 is matched with the water inlet pipe 20 in a positioning way, the connecting and fixing effect between the valve seat 21 and the water inlet pipe 20 is achieved through bolts. The connection and fixation means may be a snap connection or other fixation means.

Specifically, the first seal 15, the second seal 22, and the third seal 23 are seal rings.

In particular, the energy storage assembly 17 may be a spring, or may be another elastic structure.

In this embodiment, it should be further noted that the electromagnetic assembly, the water outlet pipe and the membrane structure in the main body 11 are all of the prior art, and therefore will not be described.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A low cost constant pressure and constant current solenoid valve, comprising:

The water inlet device comprises a body (11), wherein a water inlet cavity (12) is formed in the body, and a water inlet channel (13) communicated with the interior of the body (11) is formed in the water inlet cavity (12);

The valve core assembly is positioned in the water inlet cavity (12), the valve core assembly comprises a valve core (14), a first sealing element (15) is sleeved on the valve core (14), the valve core (14) extends to the water inlet channel (13), a first channel (16) is formed between the outer wall of the valve core (14) and the inner wall of the water inlet channel (13), and the first channel (16) is positioned on the movement track of the first sealing element (15);

The energy storage component (17) is positioned in the water inlet cavity (12), one end of the energy storage component (17) is propped against the water inlet cavity (12), the other end of the energy storage component (17) is propped against the valve core component, and the energy storage component (17) has a preset pressure value;

When the pressure of the water entering the water inlet cavity (12) is larger than the preset pressure value, the valve core (14) is driven by the pressure of the water to move towards the water inlet channel (13), and the first sealing piece (15) seals the first channel (16); when the pressure of water entering the water inlet cavity (12) is smaller than or equal to the preset pressure value, the energy storage assembly (17) drives the valve core (14) to move towards the direction away from the water inlet channel (13), and the first channel (16) is opened.

2. The low-cost constant-pressure and constant-current electromagnetic valve according to claim 1, characterized in that a guide surface (131) is arranged on the opening of the water inlet channel (13), and the guide surface (131) extends towards the inside of the water inlet channel (13) and gradually reduces in size.

3. The low-cost constant-pressure and constant-current electromagnetic valve according to claim 2, wherein a first plane (132) is further arranged on the opening of the water inlet channel (13), the first plane (132) is connected with one end of the guiding surface (131), and the first plane (132) is positioned on the movement track of the first sealing element (15).

4. The low-cost constant-pressure and constant-current electromagnetic valve according to claim 1, wherein the valve core (14) is provided with a fixing groove (141), and the first sealing element (15) is sleeved in the fixing groove (141).

5. The low-cost constant-pressure and constant-current electromagnetic valve according to claim 1, characterized in that the valve core assembly further comprises a connecting piece (18), the connecting piece (18) is linked with the valve core (14), a second channel (19) is arranged between the connecting piece (18) and the valve core (14), and the second channel (19) is communicated with the water inlet channel (13).

6. The low-cost constant-pressure and constant-current electromagnetic valve according to claim 1, characterized in that the body (11) comprises a water inlet pipe (20) and a valve seat (21), the water inlet pipe (20) and the valve seat (21) being matched to form the water inlet cavity (12).

7. The low-cost constant-pressure and constant-current electromagnetic valve according to claim 6, wherein a plurality of third channels (201) distributed in a circumferential array are arranged in the water inlet pipe (20).

8. The low-cost constant-pressure and constant-current electromagnetic valve according to claim 6, characterized in that a first fixing cavity (211) is formed on the valve seat (21), the valve core assembly extends into the first fixing cavity (211), and a second sealing piece (22) is arranged between the valve core assembly and the inner wall of the first fixing cavity (211).

9. The low-cost constant-pressure and constant-current electromagnetic valve according to claim 8, wherein a second fixed cavity (212) is arranged on the valve seat (21), the first fixed cavity (211) is positioned on the inner side of the second fixed cavity (212), and one end of the energy storage component (17) is propped against the bottom surface of the second fixed cavity (212).

10. The low-cost constant-pressure and constant-current electromagnetic valve according to claim 6, wherein one of the valve seat (21) and the water inlet pipe (20) is provided with a positioning block (24), and the other one of the valve seat (21) and the water inlet pipe (20) is provided with a positioning groove (25) matched with the positioning block (24).