CN107477219B - Double-insurance magnetic one-way valve - Google Patents

Abstract

The invention relates to a double-insurance magnetic one-way valve. The device comprises a hollow valve body, a hollow valve core is inserted in a valve cavity of the valve body, a gap between the inner wall of the valve body and the valve core forms an inlet channel, a hollow structure of the valve core forms an outlet channel, the outlet channel comprises a first through hole communicated with the inlet channel, a first magnet used for blocking the first through hole is arranged at the position, opposite to the direction of fluid, of the first through hole, a second magnet which is repelled with the first magnet is arranged at the middle part of the outlet channel, a second through hole is arranged at the outlet end of the outlet channel, a third magnet used for blocking the second through hole is arranged at the position, opposite to the direction of fluid, of the second through hole, and the third magnet is attracted with the second magnet. The first magnet can block the first through hole of the discharge channel due to the like repulsion of the first magnet and the second magnet, and the third magnet can block the second through hole of the discharge channel due to the opposite attraction of the second magnet and the third magnet.

Description

A double insurance magnetic one-way valve

Technical field

The present invention relates to a one-way valve, in particular to a double insurance magnetic one-way valve.

Background technique

The existing Chinese patent database discloses a patent named magnet type one-way valve. The application number of this patent is: 201420324686.5, the application date is 2014.06.18, the authorization announcement number is CN 203880160 U, and the authorization announcement date is 2014.10.15 , its structure includes: a valve body, a poppet valve core, a valve seat and a retaining ring. It is characterized in that between the upper part of the poppet valve core and the valve body is the lower part of an annular magnetic isolation sleeve, and the upper part of the annular magnetic isolation sleeve is provided with There is a valve core annular permanent magnet, the center hole of the valve core annular permanent magnet matches the through hole of the poppet valve core; a concave hollow magnetic isolation sleeve is provided below the valve seat, and the concave hollow magnetic isolation sleeve is provided with an internal There is a valve seat annular permanent magnet, the center hole of the valve seat annular permanent magnet matches the through hole of the valve seat; the valve core annular permanent magnet and the valve seat annular permanent magnet are arranged in opposite directions and repel each other. Its shortcomings are: since the device has only one poppet valve core, when the poppet valve core is damaged or the sealing is poor, the device is difficult to continue working. At the same time, the device is not suitable for high-pressure working environments, and the performance of the device is inconsistent with the performance of the device. Poor stability.

Contents of the invention

The purpose of the present invention is to provide a double-safety magnetic one-way valve suitable for high pressure and with better performance and stability in view of the shortcomings of the existing technology.

In order to achieve the purpose of the above invention, the technical solutions adopted by the present invention are:

A double-safety magnetic one-way valve includes a hollow valve body. A hollow valve core is inserted into the valve cavity of the valve body. The gap between the inner wall of the valve body and the valve core constitutes an inlet channel. The hollow structure of the valve core constitutes a discharge channel. The discharge channel includes a first through hole connected with the inlet channel. The first through hole is provided with a first magnet for blocking the first through hole against the direction of the fluid. A second magnet that repels the first magnet is provided in the middle of the discharge channel. A second through hole is provided at the discharge end of the discharge channel. The second through hole is provided against the direction of the fluid for blocking the second through hole. The third magnet of the hole attracts the third magnet to the second magnet.

When the invention works, the external medium is connected to the valve body, so that the medium flows along the inlet channel to the first passage hole of the valve core. Since the first magnet and the second magnet are of the same nature and repel each other, the medium will be blocked in the first passage hole of the valve core. The first magnet in the hole pushes open, and because the second magnet and the third magnet are oppositely attracted, the medium pushes open the third magnet blocked on the second through hole, and the medium is discharged from the valve body.

In order to enhance the sealing performance of the first magnet and the first through hole, and at the same time enhance the sealing performance of the third magnet and the second through hole, the joint between the first through hole and the first magnet is set as an inner cone surface. The tip direction is opposite to the direction of fluid flow, the joint between the second through hole and the third magnet is set as an inner cone surface, and the tip direction of the cone is opposite to the direction of fluid flow.

In order to enhance the sealing performance of the first magnet and the first through hole, enhance the sealing performance of the third magnet and the second through hole, and at the same time absorb the friction between the third magnet and the second through hole when the first magnet cooperates with the first through hole. To prevent vibration when mated, the first magnet and the third magnet are wrapped with an elastic layer.

In order to prevent the valve core from shaking in the valve cavity, thus affecting the overall performance and stability, a number of first ribs for positioning the valve core are spaced on the inner wall of the valve cavity of the valve body. The first ribs connect the valve core to the valve core. Separated from the inner wall of the valve chamber, an inlet channel is formed.

In order to prevent the first magnet from shaking in the discharge channel and to facilitate the flow of fluid in the discharge channel, the inner wall of the discharge channel is provided with a number of second protruding ribs that are in sliding contact with the first magnet. The second protruding ribs connect the first The magnet is separated from the inner wall of the discharge channel, forming a gap for fluid flow.

In order to prevent the third magnet from shaking in the discharge channel and to facilitate the flow of fluid in the discharge channel, the inner wall of the discharge channel is also provided with a number of third protruding ribs that are in sliding contact with the third magnet. The third protruding ribs connect the third magnet to the Separated from the inner wall of the discharge channel, a gap is formed for the fluid to pass.

In order to prevent the second magnet from blocking the second through hole and affecting the passage of fluid through the second through hole, the discharge channel is provided with a bracket that prevents the second magnet from moving toward the second through hole.

In order to facilitate the removal or installation of the first magnet, the second magnet and the third magnet, the valve core includes an upper valve core, a middle valve core and a lower valve core that are inserted in sequence, and the upper valve core is provided with a first through hole. And a first inner hole is slidably connected to the first magnet. The middle valve core is provided with a second inner hole for placing the second magnet and a third inner hole for slidingly connecting the third magnet. Between the second inner hole and the third inner hole There is a second through hole connecting the two.

In order to prevent the first magnet, the second magnet and the third magnet from shaking in the valve core, thereby affecting the performance of the entire device, several second magnets are arranged in the first inner hole of the upper valve core in sliding contact with the first magnet. The convex rib and the second convex rib separate the first magnet from the inner wall of the first inner hole, forming a gap for fluid to pass through. A plurality of third magnets are arranged in the third inner hole of the middle valve core and are in sliding contact with the third magnet. Three protruding ribs separate the third magnet from the inner wall of the third inner hole, forming a gap for fluid to pass through. A plurality of third ribs for positioning the second magnet are arranged in the second inner hole of the middle valve core. Four protruding ribs separate the second magnet from the inner wall of the second inner hole, forming a gap for fluid to pass.

In order to ensure the sealing of the entire device, the connection between the upper valve core and the middle valve core, the connection between the middle valve core and the lower valve core, and the connection between the lower valve core and the valve body are all provided with Seals.

Compared with the prior art, the beneficial effects of the present invention are: since the first magnet and the second magnet are of the same nature and repel each other, the first magnet can block the first through hole of the discharge channel; The third magnet can block the second through hole of the discharge channel. At the same time, because the first magnet, the second magnet and the third magnet are spaced apart in the valve cavity, the magnetic force is constant and the corrosion resistance is better. When the car is driving, During the process, as the car vibrates, the first magnet, the second magnet and the third magnet follow in the valve cavity to form a dynamic seal.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a top view of the present invention.

Figure 3 is a cross-sectional view along line A-A in Figure 2 .

Among them, 1 valve body, 101 valve chamber, 102 first rib, 2 valve core, 201 upper valve core, 202 middle valve core, 203 lower valve core, 204 first inner hole, 205 second inner hole, 206 third Inner hole, 207 second protruding rib, 208 third protruding rib, 209 fourth protruding rib, 3 inlet channel, 4 discharge channel, 401 first through hole, 402 second through hole, 5 first magnet, 6 second magnet , 601 bracket, 7 third magnet, 8 elastic layer, 9 sealing ring.

Detailed ways

As shown in Figures 1 to 3, it is a double insurance magnetic one-way valve, which includes a hollow valve body 1. A hollow valve core 2 is inserted into the valve cavity 101 of the valve body 1. In order to prevent the valve core 2 from being The inner wall of the valve cavity 101 is rocked, thereby affecting the overall performance and stability. The inner wall of the valve cavity 101 of the valve body 1 is provided with a number of first ribs 102 for positioning the valve core 2 at intervals. The first ribs 102 position the valve core 2 The inlet channel 3 is formed apart from the inner wall of the valve cavity 101. In order to facilitate the removal or installation of the first magnet 5, the second magnet 6 and the third magnet 7, the valve core 2 includes an upper valve core 201, a middle valve core 201 and a middle valve core 201 which are inserted in sequence. Core 202 and lower valve core 203. The upper valve core 201 is provided with a first through hole 401 and a first inner hole 204 slidingly connected to the first magnet 5. The middle valve core 202 is provided with a second inner hole 205 for placing the second magnet 6. And the third inner hole 206 is slidingly connected to the third magnet 7. A second through hole 402 is provided between the second inner hole 205 and the third inner hole 206 to connect the two. In order to avoid the first magnet 5 and the second magnet 6 And the third magnet 7 rocks in the valve core 2, thus affecting the performance of the entire device. A number of second ribs 207 are arranged in the first inner hole 204 of the upper valve core 201 and are in sliding contact with the first magnet 5. The convex rib 207 separates the first magnet 5 from the inner wall of the first inner hole 204, forming a gap for fluid to pass through. Several third inner holes 206 of the middle valve core 202 are arranged in sliding contact with the third magnet 7. The convex rib 208 and the third convex rib 208 separate the third magnet 7 from the inner wall of the third inner hole 206, forming a gap for fluid to pass through. A plurality of second inner holes 205 for positioning the second valve core 202 are arranged in the second inner hole 205 of the middle valve core 202. The fourth protruding rib 209 of the magnet 6 separates the second magnet 6 from the inner wall of the second inner hole 205, forming a gap for fluid to pass through. The hollow structure of the valve core 2 forms the discharge channel 4. The discharge channel 4 includes a first through hole 401 connected with the inlet channel 3. The first through hole 401 is provided with a first magnet 5 for blocking the first through hole 401 against the direction of the fluid. In the middle of the discharge channel 4, a first magnet 5 is provided with The second magnet 6 that repels the first magnet 5 is provided with a second through hole 402 at the discharge end of the discharge channel 4. The second through hole 402 is provided with a third through hole 402 against the direction of the fluid for blocking the second through hole 402. Magnet 7, the third magnet 7 and the second magnet 6 are attracted to each other. The discharge channel 4 is provided with a bracket 601 that prevents the second magnet 6 from moving to the second through hole 402. In order to enhance the cooperation between the first magnet 5 and the first through hole 401 The sealing performance enhances the sealing performance of the third magnet 7 and the second through hole 402, and at the same time absorbs the vibration when the first magnet 5 cooperates with the first through hole 401 and the third magnet 7 cooperates with the second through hole 402. The first magnet 5 and the third magnet 7 are wrapped with an elastic layer 8. In order to enhance the sealing performance of the first magnet 5 and the first through hole 401, and at the same time enhance the sealing performance of the third magnet 7 and the second through hole 402, the first The place where the through hole 401 is attached to the first magnet 5 is set as an inner cone surface, and the cone tip is against the fluid flow direction. The place where the second through hole 402 is attached to the third magnet 7 is set up as an inner cone surface, and the cone tip is against the fluid flow. direction, in order to ensure the sealing of the entire device, the connection between the upper valve core 201 and the middle valve core 202, the connection between the middle valve core 202 and the lower valve core 203, the connection between the lower valve core 203 and the valve body 1 The joints are all provided with sealing rings 9 .

During operation, the medium is connected to the valve chamber 101 of the valve body 1, so that the medium flows along the inlet channel 3 to the first through hole 401. Since the first magnet 5 and the second magnet 6 are of the same nature and repel each other, the medium will be blocked on them. The first magnet 5 of the first passage hole 401 of the valve core 201 is pushed open, and because the second magnet 6 and the third magnet 7 are oppositely attracted, the medium pushes open the third magnet 7 blocked on the second passage hole 402. The medium is discharged from the valve body 1 .

The present invention is not limited to the above embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some of the technical features without any creative work based on the disclosed technical content. Modifications, these substitutions and modifications are within the protection scope of the present invention.

Claims (8)

1. The utility model provides a double insurance magnetic force type check valve, includes hollow valve body, peg graft in the valve pocket of valve body has hollow case, and the clearance between valve body inner wall and the case has constituted the entering passageway, the hollow structure of case has constituted discharge passage, its characterized in that: the discharge channel including with the first through hole that gets into the passageway intercommunication, first through hole is provided with the first magnet that is used for shutoff first through hole in opposition to the fluid direction department, be provided with the second magnet that repels with first magnet in the middle part of discharge channel, be provided with the second through hole at the discharge end of discharge channel, second through hole is provided with the third magnet that is used for shutoff second through hole in opposition to the fluid direction department, the third magnet is inhaled with the second magnet, first through hole and first magnet laminating department set up to interior conical surface, second through hole and third magnet laminating department set up to interior conical surface, first magnet and third magnet parcel have the elastic layer.

2. The double safety magnetic check valve according to claim 1, wherein: the valve body is characterized in that a plurality of first ribs for positioning the valve core are arranged on the inner wall of the valve cavity of the valve body at intervals, and the valve core and the inner wall of the valve cavity are separated by the first ribs to form an inlet channel.

3. The double safety magnetic check valve according to claim 1, wherein: the inner wall of the discharge channel is provided with a plurality of second convex ribs which are in sliding contact with the first magnet, and the second convex ribs separate the first magnet from the inner wall of the discharge channel to form a gap for fluid flow.

4. The double safety magnetic check valve according to claim 1, wherein: the inner wall of the discharge channel is also provided with a plurality of third ribs which are in sliding contact with the third magnet, and the third ribs separate the third magnet from the inner wall of the discharge channel to form a gap for fluid to pass through.

5. The double safety magnetic check valve according to claim 1, wherein: the discharge passage is provided with a bracket for preventing the second magnet from moving to the second through hole.

6. The double safety magnetic check valve according to claim 1, wherein: the valve core comprises an upper valve core, a middle valve core and a lower valve core which are sequentially spliced, the upper valve core is provided with a first through hole and a first inner hole which is connected with the first magnet in a sliding mode, the middle valve core is provided with a second inner hole for placing the second magnet and a third inner hole which is connected with the third magnet in a sliding mode, and a second through hole for communicating the second inner hole with the third inner hole is formed in the middle valve core.

7. The double safety magnetic check valve according to claim 6, wherein: the first inner hole of the upper valve core is internally provided with a plurality of second convex ribs which are in sliding contact with the first magnet, the second convex ribs separate the first magnet from the inner wall of the first inner hole to form a gap for fluid to pass through, the third inner hole of the middle valve core is internally provided with a plurality of third convex ribs which are in sliding contact with the third magnet, the third convex ribs separate the third magnet from the inner wall of the third inner hole to form a gap for fluid to pass through, the second inner hole of the middle valve core is internally provided with a plurality of fourth convex ribs for positioning the second magnet, and the fourth convex ribs separate the second magnet from the inner wall of the second inner hole to form a gap for fluid to pass through.

8. A double safety magnetic check valve according to claim 6 or 7, wherein: sealing rings are arranged at the connecting positions of the upper valve core and the middle valve core, the connecting positions of the middle valve core and the lower valve core and the connecting positions of the lower valve core and the valve body.