CN220910614U - Novel anti-blocking electromagnetic valve - Google Patents

Abstract

The utility model discloses a novel electromagnetic valve with an anti-blocking structure, which comprises the following components: the valve body is internally provided with a valve cavity and a wastewater channel, the two sides of the valve cavity are respectively provided with a water inlet and a water outlet, and the valve cavity is internally provided with a main flow channel communicated with the water inlet and the water outlet; a waste water port is arranged at the joint of the waste water channel and the valve cavity; the filter screen is positioned in the valve cavity, the filter screen is matched with the inner wall of the valve cavity to form a filter cavity, and the waste water port is positioned in the filter cavity. The filter screen is arranged in the valve cavity, so that the filtering effect of the waste water port is formed, and other impurities or foreign matters can flow out through the main runner and the water outlet, so that the waste water port is not blocked.

Description

Novel anti-blocking electromagnetic valve

Technical Field

The utility model relates to the technical field of electromagnetic valves, in particular to a novel electromagnetic valve with an anti-blocking structure.

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. For example, chinese patent publication No. CN109654237A, entitled "Low pressure Water inlet anti-blocking wastewater solenoid valve", discloses that when the solenoid valve is in working state, water is drained through the main flow passage, and the wastewater passage is in closed state; when the electromagnetic valve is in a closed state, under a low water pressure state, when the water pressure overcomes the spring in the waste water channel, the waste water channel is opened, and at the moment, the waste water is discharged through the waste water channel.

However, this structure has a problem in that the size of the main channel is larger than that of the waste water port, and when foreign matter larger than that of the waste water port and smaller than that of the main channel is present in the waterway, the waste water port is easily blocked. In the prior art, a filtering structure is added to the water inlet, and if the aperture of the filtering structure is too small, foreign matters larger than the size of the wastewater outlet are directly intercepted, so that the water inlet is frequently cleaned; if the aperture of the filter structure is arranged only for intercepting foreign matters larger than the size of the main runner, the foreign matters larger than the size of the waste water port and smaller than the size of the main runner can block the waste water port. So that the small foreign matters can be discharged without blocking the waste water gap.

Disclosure of utility model

Therefore, the utility model aims to solve the technical problem of how to realize the discharge of small foreign matters without blocking the waste water gap. Therefore, the utility model provides a novel electromagnetic valve with an anti-blocking structure, which comprises the following components:

The valve body is internally provided with a valve cavity and a wastewater channel, the two sides of the valve cavity are respectively provided with a water inlet and a water outlet, and the valve cavity is internally provided with a main flow channel communicated with the water inlet and the water outlet; a waste water port is arranged at the joint of the waste water channel and the valve cavity;

the filter screen is positioned in the valve cavity, the filter screen is matched with the inner wall of the valve cavity to form a filter cavity, and the waste water port is positioned in the filter cavity.

The height of the side, close to the water inlet, of the filter cavity is higher than the height of the side, close to the water outlet, of the filter cavity.

The filter screen is in clamping connection or bolt connection or plug-in connection or interference fit with the valve cavity.

The filter screen is provided with a first supporting leg, and a first slot matched with the first supporting leg is arranged in the valve cavity.

The filter screen is provided with a second supporting leg, the second supporting leg is provided with a first inclined plane, and the main runner is provided with a second inclined plane matched with the first inclined plane.

The waste water port is positioned on one side of the waste water channel close to the water outlet.

The waste water channel is internally provided with a plug, a slide bar, a flow needle, a guide sleeve and a resetting piece, the plug and the guide sleeve are matched to form a cavity, the cavity is provided with a first through hole communicated with the waste water port and a second through hole communicated with the water outlet, the resetting piece, the slide bar and the flow needle are both positioned in the cavity, one end of the slide bar abuts against the resetting piece, the other end of the slide bar is linked with the flow needle, and the resetting piece drives the flow needle to move towards one side far away from the second through hole under the action of water pressure.

The first through hole is positioned at the joint of the plug and the guide sleeve.

The plug is in adjustable connection with the wastewater channel.

The front end of the guide sleeve is provided with a buffer cavity which is communicated with the water outlet.

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

1. According to the novel anti-blocking structure electromagnetic valve provided by the utility model, the filter screen is arranged in the valve cavity, so that the filtering effect of the waste water gap is formed, and other impurities or foreign matters can flow out through the main flow channel and the water outlet, so that the waste water gap is not blocked.

2. According to the novel anti-blocking electromagnetic valve, the height is increased due to the fact that water flow impact on one side close to the water inlet is large, and a certain buffering effect is achieved.

3. The novel anti-blocking electromagnetic valve has a plurality of fixing modes between the filter screen and the valve cavity, and can select a proper fixing mode according to actual requirements.

4. According to the novel anti-blocking structure electromagnetic valve provided by the utility model, the first support leg is matched with the first slot, so that the fixing effect between the filter screen and the valve cavity is achieved.

5. According to the novel anti-blocking structure electromagnetic valve provided by the utility model, the first inclined surface on the second supporting leg is attached to the second inclined surface, so that the fixing effect of abutting the surface is achieved.

6. The novel electromagnetic valve with the anti-blocking structure provided by the utility model has the advantages that the position of the waste water port is adjusted, and the water entering the waste water channel is prevented from affecting the sealing grade of the waste water channel.

7. According to the novel anti-blocking structure electromagnetic valve provided by the utility model, the guide sleeve is matched with the flow needle to form a linkage effect, and when the water pressure overcomes the elasticity of the reset piece, the flow needle moves away from the second through hole to realize the effect of releasing the sealing. When the water pressure can not overcome the elasticity of the resetting piece, the flow needle stretches into the second through hole at the moment, and the sealing effect is achieved.

8. According to the novel anti-blocking electromagnetic valve, the adjusting effect under different water pressures is achieved by adjusting the position of the plug, so that the use requirements under different conditions are met.

9. The novel electromagnetic valve with the anti-blocking structure provided by the utility model has the advantages that the buffer cavity is arranged, so that the buffer effect is formed, and the noise reduction is realized.

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 structural view of a novel anti-blocking electromagnetic valve;

FIG. 2 is a cross-sectional view of a novel anti-blocking solenoid valve according to the present utility model;

FIG. 3 is a cross-sectional view of a novel anti-blocking solenoid valve according to the present utility model;

FIG. 4 is a schematic view of a valve body according to the present utility model;

Fig. 5 is a schematic structural diagram of a filter screen provided by the present utility model.

Reference numerals illustrate:

11. A valve body; 12. a valve cavity; 13. a waste water channel; 14. an electromagnetic assembly; 15. a waste water port; 16. a filter screen; 17. a filter chamber; 18. a plug; 19. a slide bar; 20. a flow needle; 21. a guide sleeve; 22. a reset member; 23. a cavity; 121. a water inlet; 122. a water outlet; 123. a first slot; 124. a main flow passage; 161. a first leg; 162. a second leg; 211. a buffer chamber; 231. a first through hole; 232. a second through hole; 1241. a second inclined surface; 1621. a first inclined surface;

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

The embodiment provides a novel anti-blocking electromagnetic valve, as shown in fig. 1-5, comprising:

The valve body 11 is internally provided with a valve cavity 12 and a waste water channel 13, two sides of the valve cavity 12 are respectively provided with a water inlet 121 and a water outlet 122, the valve cavity 12 is internally provided with a main flow channel 124 communicated with the water inlet 121 and the water outlet 122, and the main flow channel 124 is used for communicating the water inlet 121 and the water outlet 122, so that the communication effect of the whole valve body 11 is realized. The electromagnetic assembly 14 is further arranged in the valve body 11, and the conduction or sealing effect of the main runner 124 is achieved through the operation of the electromagnetic assembly 14, so that the overall working effect is achieved. The present embodiment is not described in detail because it is related art.

The waste water channel 13 is communicated with the valve cavity 12, a waste water port 15 is arranged at the joint of the waste water channel 13 and the valve cavity 12, and water in the valve cavity 12 enters the waste water channel 13 through the waste water port 15. In this embodiment, the aperture of the waste gate 15 is smaller than the aperture of the main channel 124, which is the prior art.

A filter screen 16 is positioned within the valve chamber 12. The filter screen 16 cooperates with the inner wall of the valve chamber 12 to form a filter chamber 17, and the filter chamber 17 has a filtering effect and prevents foreign matters or other impurities from entering the filter chamber 17. The filter chamber 17 is located in the valve chamber 12, and water entering the valve chamber 12 can also enter the filter chamber 17, with the only difference that the filter screen 16 will perform the filtering operation. The filtering mode can be a plurality of modes, can be pore filtering, can also be cotton filtering and the like. The waste water port 15 is positioned in the filter cavity 17, water in the valve cavity 12 is filtered by the filter screen 16, and can enter the filter cavity 17 and then enter the waste water channel 13 through the waste water port 15. The filter screen 16 is arranged in the valve cavity 12, so that the filtering effect of the waste water port 15 is formed, and other impurities or foreign matters can flow out through the main flow channel 124 and the water outlet 122 without blocking the waste water port 15.

Specifically, as shown in fig. 2, the height of the filter chamber 17 near the water inlet 121 is higher than the height of the filter chamber 17 near the water outlet 122. The water flow impact on the side close to the water inlet 121 is large, so that the height is increased, and a certain buffering effect is formed. In addition to the present embodiment, the filter chamber 17 may be provided at an equal height, and a filtering effect may be achieved.

Specifically, the filter screen 16 is in a snap-fit connection or a bolt connection or a plug-in connection or an interference fit with the valve cavity 12. There are many ways of fixing the filter screen 16 to the valve chamber 12, and a suitable fixing way can be selected according to actual requirements. In this embodiment, it is necessary to ensure the fixing firmness between the filter screen 16 and the valve cavity 12, so as to prevent the filter screen 16 from shaking or shifting under the impact of water flow, which affects the actual filtering effect of the filter cavity 17. In addition, the convenience of installation of the filter screen 16 is considered, and the fixing effect can be realized through simple installation.

Specifically, as shown in fig. 4-5, the filter screen 16 is provided with a first leg 161, and the valve cavity 12 is provided with a first slot 123 that mates with the first leg 161. The cooperation of the first leg 161 and the first slot 123 creates a securing effect between the filter screen 16 and the valve chamber 12. In this embodiment, the first slot 123 specifically forms a slot with the inner wall of the valve cavity 12 through the outer wall of the water outlet 122. The lower end of the first support leg 161 stretches into the first slot 123, and meanwhile, the lower end of the first support leg 161 is also provided with an arc surface, so that the attachment with the outer wall of the water outlet 122 is realized, and the fixing strength is improved. In this embodiment, the first leg 161 is located on a side proximate to the outlet 122. In addition, the valve cavity 12 may be integrally formed with the first slot 123 by injection molding. The filter screen 16 can also be connected and fixed with the valve cavity 12 through other structures.

Specifically, as shown in fig. 3-5, the filter screen 16 is provided with a second support leg 162, the second support leg 162 is provided with a first inclined surface 1621, and the main flow channel 124 is provided with a second inclined surface 1241 matched with the first inclined surface 1621. The first inclined surface 1621 of the second leg 162 is attached to the second inclined surface 1241 to form a surface-to-surface fixing effect. In this embodiment, the second leg 162 is located on a side near the water inlet 121. The first leg 161 cooperates with the second leg 162 to provide a fixed end effect. The second support leg 162 is in the fixed in-process, and the lateral wall of second support leg 162 still laminates with the inner wall of valve pocket 12, improves fixed strength. Further, in the embodiment, the second leg 162 is a closed surface structure, the second leg 162 is not provided with a filtering hole, and the second leg 162 is close to the water inlet 121, so that after the water inlet 121 is filled with water, the water flow is abutted against the second leg 162 to impact the filter screen 16 towards the waste water inlet 15, and the fixing strength between the filter screen 16 and the valve cavity 12 is also increased. The filter screen 16 can also be connected and fixed with the valve cavity 12 through other structures.

Specifically, as shown in fig. 2, the waste water port 15 is located on a side of the waste water channel 13 near the water outlet 122. The position of the waste gate 15 is adjusted to prevent water entering the waste channel 13 from affecting the sealing level of the waste channel 13. Compared with the prior art, the waste water port 15 directly offsets against the sealing position of the waste water channel 13, and the sealing effect of the waste water channel 13 is affected, so that the waste water port 15 is arranged on one side close to the water outlet 122. The position of the waste water gap 15 can be adjusted according to actual requirements, but the water pressure needs to be ensured to drive mechanisms inside the waste water channel 13 to work.

Specifically, the filter screen 16 is provided with a plurality of filter holes, and the filter holes can be formed by stamping, cross knitting or integral injection molding. The aperture of the filtering hole in this embodiment is smaller than that of the waste water port 15, thereby satisfying the filtering effect. Here, the filter hole may be a round hole or a square hole.

Specifically, as shown in fig. 2, a plug 18, a slide bar 19, a flow needle 20, a guide sleeve 21 and a reset piece 22 are arranged in the waste water channel 13, the plug 18 and the guide sleeve 21 are matched to form a cavity 23, and the outer wall of the cavity 23 abuts against the inner edge wall of the waste water channel 13 to form a fixing effect. The cavity 23 is provided with a first through hole 231 communicated with the waste water port 15 and a second through hole 232 communicated with the water outlet 122. The water filtered by the filter cavity 17 enters the cavity 23 through the first through hole 231, then flows out through the second through hole 232 in the cavity 23, and finally is discharged through the water outlet 122. The resetting piece 22, the slide bar 19 and the flow needle 20 are all positioned in the cavity 23, and the slide bar 19 and the flow needle 20 are arranged in a linkage way. One end of the sliding rod 19 extends into the plug 18, one end of the resetting piece 22 abuts against one end of the sliding rod 19 extending into the plug 18, and the other end of the resetting piece 22 abuts against the plug 18, so that an energy storage effect is achieved. The other end of the slide bar 19 is connected with a flow needle 20, thereby realizing linkage effect. The other end of the slide bar 19 extends into the guide sleeve 21, and the axial sliding effect is realized through the guide effect of the guide sleeve 21. The second through hole 232 is positioned on the movement track of the flow needle 20, and the flow needle 20 extends into the second through hole 232, so that the effect of closing the waste water channel 13 is realized. In this embodiment, when the water pressure entering the waste water channel 13 overcomes the elastic force of the restoring member 22, the flow needle 20 moves towards the side far away from the second through hole 232, so as to achieve the unblocking effect, as shown in the drawing, that is, the slide rod 19 moves towards the plug 18. When the water pressure cannot overcome the elastic force of the reset piece 22, the flow needle 20 extends into the second through hole 232, so as to achieve the sealing effect, that is, the reset piece 22 acts, so that the slide rod 19 moves towards one side of the second through hole 232.

Specifically, the first through hole 231 is located at the junction of the plug 18 and the guide sleeve 21. The position of the first through hole 231 is selected to achieve the communication effect between the first through hole 231 and the waste water port 15, and the overall sealing effect is ensured. The first through hole 231 may be located on the plug 18, the first through hole 231 may also be located on the guide sleeve 21, and the first through hole 231 may also be formed by matching the plug 18 with the guide sleeve 21. In this embodiment, the first through hole 231 is specifically located on the guide sleeve 21.

Specifically, the return member 22 is a spring.

Specifically, the plug 18 is adjustably connected to the waste channel 13. By adjusting the position of the plug 18, the adjusting effect under different water pressures is realized so as to meet the use requirements under different conditions. The position of the plug 18 is adjusted, namely the elastic pressure of the reset piece 22 is adjusted, so that the adjusting effect between the reset piece 22 and the water pressure is realized. There are many ways of adjusting, in this embodiment, only adjustment is implemented by threaded connection, that is, the plug 18 and the waste water channel 13 are in threaded fit, and the plug 18 is rotated, so that a relative adjusting effect is achieved. In addition, other adjustment methods can be used for adjustment. Further, a driving groove is formed in the outer side of the plug 18, so that the plug 18 can be conveniently driven to rotate.

The front end of the guide sleeve 21 is provided with a buffer cavity 211, and the buffer cavity 211 is communicated with the water outlet 122. The front end of the guide sleeve 21 here is in particular the end remote from the plug 18. The water flows out into the buffer chamber 211 through the second through hole 232 and then flows out through the water outlet 122. The buffer cavity 211 is arranged to form a buffer effect, so that noise reduction is realized.

Specifically, the sealing rings are sleeved on the plugs 18 and the guide sleeves 21, so that the sealing effect between the plugs 18 and the guide sleeves 21 and the wastewater channel 13 is improved. The sealing ring is also sleeved on the sliding rod 19, so that the sealing effect between the sliding rod 19 and the plug 18 is improved.

Specifically, the water inlet 121 and the water outlet 122 are disposed in parallel.

Specifically, the valve chamber 12 is also provided with a diaphragm structure, which is also known in the art, and is not described in the present embodiment. In addition, those skilled in the art can modify other structures, such as a lead structure, etc., according to actual needs.

Specifically, the water inlet 121 and the water outlet 122 may also be provided with filtering devices, so as to improve the overall filtering effect.

Specifically, the principle of this embodiment is that when the electromagnetic assembly 14 is not energized, the electromagnetic assembly 14 is in a closed state, the electromagnetic assembly 14 closes the main flow channel 124, so that the pressure of the upper pressure cavity is greater than that of the lower pressure cavity, the electromagnetic valve is in a closed state, when the water inlet valve at the front end of the water purifier is pressurized, the continuously pressurized water pressure in the inner cavity overcomes the reset piece 22 to press the slide rod 19 inside the plug 18, and the flow needle 20 is moved out of the second through hole 232.

When the electromagnetic assembly 14 is electrified, the electromagnetic valve is in an open state, the main flow passage 124 is opened, when the pressure of the lower pressure cavity is greater than that of the upper pressure cavity, the water pressure cannot overcome the resetting piece 22, the resetting piece 22 drives the sliding rod 19 to move towards one side of the second through hole 232, and the flow needle 20 extends into the second through hole 232 to realize the sealing of the waste water channel 13.

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 (10)

1. Novel prevent stifled structure solenoid valve, its characterized in that includes:

The valve body (11) is internally provided with a valve cavity (12) and a waste water channel (13), a water inlet (121) and a water outlet (122) are respectively arranged on two sides of the valve cavity (12), and a main flow channel (124) which is communicated with the water inlet (121) and the water outlet (122) is arranged in the valve cavity (12); a waste water port (15) is arranged at the joint of the waste water channel (13) and the valve cavity (12);

The filter screen (16) is positioned in the valve cavity (12), the filter screen (16) is matched with the inner wall of the valve cavity (12) to form a filter cavity (17), and the waste water port (15) is positioned in the filter cavity (17).

2. The novel anti-blocking structure electromagnetic valve according to claim 1, wherein the height of one side of the filter cavity (17) close to the water inlet (121) is higher than the height of one side of the filter cavity (17) close to the water outlet (122).

3. The novel anti-blocking electromagnetic valve according to claim 1 or 2, characterized in that the filter screen (16) and the valve cavity (12) are in clamping connection or bolt connection or plug-in connection or interference fit.

4. A novel anti-blocking electromagnetic valve according to claim 3, characterized in that the filter screen (16) is provided with a first support leg (161), and the valve cavity (12) is internally provided with a first slot (123) matched with the first support leg (161).

5. A novel anti-blocking electromagnetic valve according to claim 3, wherein the filter screen (16) is provided with a second support leg (162), the second support leg (162) is provided with a first inclined plane (1621), and the main runner (124) is provided with a second inclined plane (1241) matched with the first inclined plane (1621).

6. The novel anti-blocking structure electromagnetic valve according to claim 1, characterized in that the waste water port (15) is located on a side of the waste water channel (13) close to the water outlet (122).

7. The novel anti-blocking structure electromagnetic valve according to claim 1, characterized in that a plug (18), a slide bar (19), a flow needle (20), a guide sleeve (21) and a reset piece (22) are arranged in the waste water channel (13), the plug (18) is matched with the guide sleeve (21) to form a cavity (23), a first through hole (231) communicated with the waste water outlet (15) and a second through hole (232) communicated with the water outlet (122) are arranged on the cavity (23), the reset piece (22), the slide bar (19) and the flow needle (20) are all positioned in the cavity (23), one end of the slide bar (19) is abutted against the reset piece (22), the other end of the slide bar (19) is linked with the flow needle (20), and the reset piece (22) drives the flow needle (20) to move towards one side far away from the second through hole (232) under the action of water pressure.

8. The novel anti-blocking structure electromagnetic valve according to claim 7, wherein the first through hole (231) is located at the joint of the plug (18) and the guide sleeve (21).

9. The novel anti-blocking structure electromagnetic valve according to claim 7, wherein the plug (18) is adjustably connected with the waste water channel (13).

10. The novel anti-blocking structure electromagnetic valve according to claim 7, wherein a buffer cavity (211) is arranged at the front end of the guide sleeve (21), and the buffer cavity (211) is communicated with the water outlet (122).