CN216430512U - Straight-through electromagnetic valve - Google Patents

Abstract

The application relates to a straight-through electromagnetic valve, relates to the technical field of electromagnetic valves, and aims to solve the problem that the working stability of the electromagnetic valve is low. A straight-through electromagnetic valve comprises a valve body, wherein a cavity is formed in the top of the valve body, a water outlet hole communicated with the cavity is formed in the bottom wall of the valve body in a penetrating mode, a water inlet hole is formed in the outer peripheral wall of the valve body, and an electromagnetic coil is arranged at the top of the valve body; a flow guide ring cavity is arranged on the inner side wall of the cavity around the water outlet hole and communicated with the water inlet hole; and a sealing mechanism for sealing the water outlet hole is arranged in the electromagnetic coil. This application has the effect that improves the job stabilization nature of solenoid valve.

Description

Straight-through electromagnetic valve

Technical Field

The application relates to the technical field of electromagnetic valves, in particular to a straight-through electromagnetic valve.

Background

At present, an electromagnetic valve is a valve that is opened and closed by using electromagnetism, and is generally used for adjusting other parameters such as direction, flow rate, speed and the like of a medium in an industrial control system.

Chinese patent with publication number CN206299895U discloses a counting energy-saving high-vacuum solenoid valve, which comprises a valve body, wherein a cavity is formed at the top of the valve body, a water inlet hole communicated with the cavity penetrates through the outer peripheral wall of the valve body, and a water outlet hole communicated with the cavity penetrates through the bottom of the valve body; the inner side wall of the cavity is provided with a foldable and telescopic corrugated pipe; a valve rod capable of sealing the water outlet hole is arranged on the inner side wall of the corrugated pipe, and a spring for pushing the valve rod to seal the water outlet hole through elasticity is arranged between the valve rod and the corrugated pipe; a shell is arranged at the top of the valve body, the top end of the valve rod is positioned in the shell and is provided with a movable iron core, and a static iron core is arranged in the shell and above the movable iron core; and the inner part of the shell is provided with an electromagnetic coil around the movable iron core and the static iron core. An operator starts the electromagnetic coil and the static iron core to generate electromagnetic attraction to adsorb the movable iron core and drive the valve rod to move upwards, so that the water inlet hole is communicated with the water outlet hole; after the electromagnetic coil is closed, the spring pushes the valve rod to close the water outlet hole so as to close the electromagnetic valve.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: open when stopping the solenoid valve, move the iron core and drive the valve rod displacement for bellows contracts folding or tensile expansion along length direction, and the medium in the inlet opening plays the axial effort of edge inlet opening to the bellows, easily leads to the bellows to buckle, thereby influences the stability of solenoid valve work, so remain to improve.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the working stability of the electromagnetic valve is lower, the straight-through electromagnetic valve is provided.

The application provides a through-type solenoid valve adopts following technical scheme:

a straight-through electromagnetic valve comprises a valve body, wherein a cavity is formed in the top of the valve body, a water outlet hole communicated with the cavity is formed in the bottom wall of the valve body in a penetrating mode, a water inlet hole is formed in the outer peripheral wall of the valve body, an electromagnetic coil is arranged at the top of the valve body, and a static iron core is arranged at one end, away from the valve body, of the electromagnetic coil; a flow guide ring cavity is arranged on the inner side wall of the cavity around the water outlet hole and communicated with the water inlet hole; and a sealing mechanism for sealing the water outlet hole is arranged in the electromagnetic coil.

By adopting the technical scheme, when the electromagnetic valve works, the medium in the water inlet hole flows into the guide ring groove, and axial acting force along the guide ring groove is generated on the sealing mechanism, so that the sealing mechanism is separated from sealing the water outlet hole, the axial acting force along the water inlet hole generated by the medium in the water inlet hole on the sealing mechanism is reduced, the interference influence on the sealing mechanism during working is reduced, and the working stability of the electromagnetic valve is improved.

Preferably, the sealing mechanism comprises a positioning sleeve, a sealing assembly and a resetting piece; the positioning sleeve is arranged in the electromagnetic coil in a penetrating mode, one end of the positioning sleeve is connected with the inner side wall of the cavity, and the other end of the positioning sleeve abuts against the static iron core; the sealing assembly is arranged in the positioning sleeve in a sliding mode and can be magnetically attracted with the static iron core; the reset piece is sleeved outside the sealing assembly and used for pushing the sealing assembly to seal the water outlet hole through elasticity.

By adopting the technical scheme, the static iron core adsorbs the sealing assembly by the electrified electromagnetic coil, and the resetting piece elastically contracts under the action of pressure, so that the sealing assembly is separated from the sealing of the water outlet hole, and the electromagnetic valve is opened; after solenoid powered off, quiet iron core removes the absorption to seal assembly, and the piece that resets carries out the elasticity inflation for seal assembly seals the apopore, in order to close the solenoid valve, thereby has ensured the normal work of solenoid valve.

Preferably, the sealing assembly comprises a movable iron core and a sealing plug; the movable iron core is arranged in the positioning sleeve in a sliding mode, and an installation hole penetrates through the end wall of the movable iron core; the sealing plug sets up in the mounting hole, the sealing plug is located the one end that moves the iron core and be close to the valve body in order to be used for sealing the mounting hole, the one end that the static iron core was kept away from to the sealing plug can be used to seal the apopore.

By adopting the technical scheme, when the movable iron core moves towards the static iron core, air between the top end of the movable iron core and the positioning sleeve flows into the mounting hole, so that resistance of the air between the top end of the movable iron core and the positioning sleeve to the movable iron core is reduced; when the movable iron core moves towards the valve body, part of air in the mounting hole flows between the top end of the movable iron core and the positioning sleeve, so that the air pressure between the top end of the movable iron core and the positioning sleeve is increased, the reset movement of the movable iron core is ensured, and the working stability of the electromagnetic valve is improved; the sealing plug seals the mounting hole to reduce the medium in the cavity from flowing into the mounting hole and reduce the influence of the medium on the movable iron core and the internal structure of the movable iron core; the soft sealing plug of texture has reduced the rigid collision of movable iron core with the valve body, and the sealing plug has also improved the gas tightness to apopore confined simultaneously.

Preferably, the movable iron core lateral wall and the one end that is close to the valve body are provided with the installation ring groove, form the installation ring chamber in installation ring groove department between movable iron core and the position sleeve, the piece that resets is located the installation ring chamber.

Through adopting above-mentioned technical scheme, the piece that resets is located the installation ring intracavity, has reduced the medium in the cavity to moving the iron core and the axial effort of following the inlet opening that the piece produced that resets, has reduced the interference influence to moving the iron core and the piece function that resets, has improved the job stabilization nature of solenoid valve.

Preferably, the sealing plug periphery wall is provided with the butt ring piece that is used for restricting the sealing plug to break away from the mounting hole, the butt annular that supplies the butt ring piece to go into is seted up to the mounting hole inner wall, butt ring piece periphery wall is provided with the guide ring face that the sealing plug of being convenient for supports into the mounting hole.

By adopting the technical scheme, the guide ring surface reduces the resistance when the sealing plug is propped into the mounting hole; in the sealing plug supports the mounting hole for butt ring piece supports the butt annular, and the end wall that quiet iron core was kept away from to the butt ring piece this moment offsets with butt annular inside wall, breaks away from the mounting hole with the restriction sealing plug, realizes the quick firm installation of sealing plug promptly.

Preferably, the sealing assembly further comprises a sealing plate, and the sealing plate is arranged at one end of the sealing plug close to the static iron core and used for sealing the mounting hole; and a sealing ring groove for the sealing plate to abut into is arranged on the inner side wall of the mounting hole.

By adopting the technical scheme, the sealing plate seals the mounting hole, so that the influence of corrosion on the movable iron core and the internal structure of the movable iron core caused by the fact that a medium in the cavity enters the mounting hole is reduced; the sealing plate reduces the phenomenon that the sealing plug with soft texture is propped into the mounting hole, thereby ensuring the service life of the sealing plug.

Preferably, a buffer part is arranged at one end of the mounting hole, which is far away from the sealing plug, and the buffer part comprises a sliding block and an elastic piece; the sliding block is arranged in the mounting hole in a sliding manner; the elastic piece is arranged between the sliding block and the sealing plate.

By adopting the technical scheme, when the movable iron core moves, the speed difference exists between the movable iron core and the sliding block, and the sliding block and the movable iron core slide relatively to enable the elastic piece to generate elastic deformation; partial kinetic energy of the movable iron core is converted into kinetic energy of the sliding block and elastic potential energy of the elastic piece, so that the movable iron core moving fast can be buffered to a certain extent, and the working stability of the electromagnetic valve is further improved.

Preferably, the sliding block periphery wall is provided with the spacing ring piece that is used for restricting the sliding block to break away from the mounting hole, the mounting hole inner wall is provided with the gliding spacing ring groove of confession spacing ring piece.

Through adopting above-mentioned technical scheme, when the sliding block slided in the mounting hole, the end wall that the elastic component was kept away from to the spacing ring piece can offset with spacing annular inside wall to the restriction sliding block breaks away from the mounting hole, has ensured buffering part's normal operating.

Preferably, the sliding block is provided with the air vent near the lateral wall of elastic component through, spacing annular inside wall is provided with the air guide hole through.

By adopting the technical scheme, the ventilation hole is convenient for the air at the top end of the movable iron core and in the positioning sleeve to circulate with the air in the mounting hole, so that the resistance on the movable iron core during movement is reduced, and the working stability of the electromagnetic valve is improved; the air guide hole reduces the resistance of the movable iron core when the movable iron core moves in the positioning sleeve, and the working stability of the movable iron core is guaranteed.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the medium in the water inlet changes the flowing direction of the medium through the guide ring cavity, the acting force of the flowing medium on the movable iron core along the axial direction of the water inlet is reduced, the interference influence on the sealing mechanism during working is reduced, and therefore the working stability of the electromagnetic valve is improved.

2. Through setting up mounting hole, air vent and guiding hole for the air between movable iron core top and the position sleeve circulates with the air in the mounting hole, has reduced the resistance that receives when moving iron core's removal, thereby has improved the job stabilization nature of solenoid valve.

3. Through setting up sliding block and elastic component, will move the partial kinetic energy of iron core and convert the kinetic energy of sliding block and the elastic potential energy of elastic component in order to consume to the realization plays certain cushioning effect to quick travel's moving iron core, further improvement the job stabilization nature of solenoid valve.

Drawings

FIG. 1 is a schematic structural diagram of a straight-through solenoid valve according to an embodiment of the present disclosure;

FIG. 2 is a schematic sectional view taken along the line A-A in FIG. 1;

fig. 3 is an enlarged schematic view of a portion B in fig. 2.

Description of reference numerals:

1. a valve body; 11. a cavity; 111. a flow guide ring cavity; 12. a water outlet hole; 13. a water inlet hole; 14. an electromagnetic coil; 141. a stationary iron core; 2. a sealing mechanism; 21. a positioning sleeve; 211. installing a ring cavity; 22. a seal assembly; 221. a movable iron core; 2211. mounting a ring groove; 222. a sealing plug; 2221. an abutment ring block; 2222. a guide ring surface; 223. a sealing plate; 23. a reset member; 3. mounting holes; 31. abutting against the ring groove; 32. sealing the ring groove; 33. a limiting ring groove; 331. a gas-guide hole; 4. a buffer member; 41. a slider; 411. a limit ring block; 412. a vent hole; 42. an elastic member.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a straight-through electromagnetic valve.

Referring to fig. 1 and 2, the straight-through electromagnetic valve comprises a valve body 1, wherein a cavity 11 is formed in the top of the valve body 1, a water outlet hole 12 communicated with the cavity 11 penetrates through the lower surface of the valve body 1 along the vertical direction, and a water inlet hole 13 is formed in the outer peripheral wall of the valve body 1 along a horizontal direction pipe; the top of the valve body 1 is fixedly connected with an electromagnetic coil 14, a static iron core 141 is fixedly connected in the electromagnetic coil 14 through a bolt, and the static iron core 141 is located at one end, far away from the valve body 1, of the electromagnetic coil 14.

Referring to fig. 2, the electromagnetic coil 14 is sleeved with a sealing mechanism 2 for sealing the water outlet hole 12. 11 diapalls of cavity encircle apopore 12 and have seted up water conservancy diversion ring chamber 111 along vertical direction, and water conservancy diversion ring chamber 111 is linked together with inlet opening 13 to reduce the inside medium impact sealing mechanism 2 of inlet opening 13, thereby improved sealing mechanism 2's job stabilization nature.

Referring to fig. 2 and 3, the seal mechanism 2 includes a positioning sleeve 21, a seal assembly 22, and a restoring member 23; the sealing assembly 22 comprises a plunger 221, a sealing plug 222 and a sealing plate 223 for closing the outlet hole 12.

Referring to fig. 2, the positioning sleeve 21 is inserted into the electromagnetic coil 14, and the positioning sleeve 21 is located between the valve body 1 and the stationary core 141; one end of the positioning sleeve 21 close to the valve body 1 is in threaded connection with the inner side wall of the cavity 11, and the other end of the positioning sleeve 21 abuts against the static iron core 141.

Referring to fig. 2 and 3, the movable iron core 221 is slidably connected inside the positioning sleeve 21; an installation ring groove 2211 is concavely arranged at one end, close to the central axis of the movable iron core 221, of the outer side wall of the movable iron core 221, of the valve body 1 along the direction close to the central axis of the movable iron core 221, so that an installation ring cavity 211 is formed between the movable iron core 221 and the positioning sleeve 21 at the installation ring groove 2211; the reset member 23 is located in the mounting ring cavity 211, and in this embodiment, the reset member 23 is a conical coil spring. The smaller end of the reset piece 23 is fixedly connected with one end of the movable iron core 221 close to the valve body 1, and the other end of the reset piece 23 is fixedly connected with the inner side wall of the positioning sleeve 21, so that the reset piece 23 pushes the movable iron core 221 to close the water outlet hole 12 through elasticity.

Referring to fig. 2 and 3, the end wall of the movable iron core 221 penetrates through the mounting hole 3 in the vertical direction, so that when the movable iron core 221 and the stationary iron core 141 are magnetically attracted by the electromagnetic coil 14, air between the top end of the movable iron core 221 and the positioning sleeve 21 is extruded into the mounting hole 3, and resistance of the air to the movable iron core 221 is reduced.

Referring to fig. 2 and 3, a sealing plug 222 is connected in the mounting hole 3, the sealing plug 222 is made of soft rubber, and the sealing plug 222 is located at one end of the plunger 221 close to the valve body 1; the outer peripheral wall of the sealing plug 222 is integrally formed with a contact ring block 2221, the contact ring block 2221 is made of soft rubber, and a contact ring groove 31 for the contact ring block 2221 to contact is formed in the inner side wall of the mounting hole 3, so that the end wall of the contact ring block 2221 is attached to the inner side wall of the contact ring groove 31.

Referring to fig. 2 and 3, the outer peripheral wall of the abutting ring 2221 is provided with a guide ring surface 2222, and the section of the abutting ring 2221 close to the stationary core 141 is smaller than the section of the abutting ring 2221 far from the stationary core 141, so as to reduce the resistance received when the sealing plug 222 abuts against the mounting hole 3. In the process that the sealing plug 222 is abutted into the mounting hole 3, the outer peripheral wall of the abutment ring block 2221 is in a deformed state by being pressed by the inner side wall of the mounting hole 3, and when the abutment ring block 2221 moves to the abutment ring groove 31, the abutment ring block 2221 restores to an original state and abuts against the inside of the abutment ring groove 31.

Referring to fig. 2 and 3, the sealing plug 222 closes the mounting hole 3 to reduce the medium inside the cavity 11 from entering the mounting hole 3. The soft sealing plug 222 at the end far from the plunger 221 can be used to seal the water outlet hole 12, so as to reduce the rigid collision between the plunger 221 and the valve body 1.

Referring to fig. 2 and 3, the sealing plate 223 is connected to one end of the sealing plug 222 close to the stationary core 141, a sealing ring groove 32 for the sealing plate 223 to abut into is formed in the inner side wall of the mounting hole 3, the sealing plate 223 is fixedly connected to the inside of the sealing ring groove 32 to seal the mounting hole 3, and meanwhile, the phenomenon that the soft sealing plug 222 abuts into the mounting hole 3 is reduced.

Referring to fig. 2 and 3, a buffer member 4 is connected to an end of the mounting hole 3 away from the sealing plug 222, and the buffer member 4 includes a sliding block 41 and an elastic member 42.

Referring to fig. 2 and 3, the sliding block 41 is slidably connected inside the mounting hole 3, a limit ring block 411 is integrally formed on the outer peripheral wall of the sliding block 41, and a limit ring groove 33 for the limit ring block 411 to slide is formed on the inner side wall of the mounting hole 3; the end wall of the stop ring block 411 away from the sealing plug 222 can abut against the inner side wall of the stop ring groove 33 to limit the sliding block 41 from separating from the mounting hole 3.

Referring to fig. 2 and 3, the elastic member 42 is connected between the sliding block 41 and the sealing plate 223, and in the present embodiment, the elastic member 42 is a spring. One end of the elastic member 42 is fixedly connected to the sliding block 41, and the other end of the elastic member 42 is fixedly connected to the sealing plate 223.

Referring to fig. 2 and 3, a vent hole 412 is formed through the end wall of the slide block 41 near the elastic member 42 to facilitate the air flow between the top end of the plunger 221 and the positioning sleeve 21 to enter the inside of the mounting hole 3; the inner sidewall of the position-limiting ring groove 33 is penetrated with an air-guiding hole 331, and the air-guiding hole 331 penetrates through the movable iron core 221.

The implementation principle of a straight-through solenoid valve of the embodiment of the application is as follows:

when the electromagnetic valve needs to be opened, the electromagnetic coil 14 is powered on, the static iron core 141 generates magnetic force, the movable iron core 221 is adsorbed, the movable iron core 221 slides towards the static iron core 141 in the positioning sleeve 21, the sealing plug 222 releases the sealing of the water outlet hole 12, so that the medium in the water inlet hole 13 flows into the water outlet hole 12, and the electromagnetic valve is opened. Air between the top end of the movable iron core 221 and the positioning sleeve 21 enters the mounting hole 3 through the vent hole 412, so that air resistance is reduced, and the moving stability of the movable iron core 221 is improved, so that the working stability of the electromagnetic valve is improved.

The inside medium of inlet opening 13 gets into in water conservancy diversion ring chamber 111, water conservancy diversion ring chamber 111 makes along the medium of inlet opening 13 axial flow, become along water conservancy diversion ring chamber 111 axial flow, make the inside medium of cavity 11 produce the axial effort along moving iron core 221 to the mounting ring surface 2211 of moving iron core 221, so that promote to move iron core 221 and move towards quiet iron core 141, the medium of inlet opening 13 inside has been reduced and has been produced along the axial effort of inlet opening 13, the interference influence to moving iron core 221 work, thereby the job stabilization nature of solenoid valve has been improved.

In the process that the movable iron core 221 moves towards the stationary iron core 141, the reset piece 23 is stressed, so that the reset piece 23 elastically contracts to generate an acting force far away from the stationary iron core 141 for the movable iron core 221, and the movable iron core 221 which is quickly adsorbed to the stationary iron core 141 is buffered.

When the electromagnetic valve needs to be closed, the electromagnetic coil 14 is powered off, and the static iron core 141 loses the magnetic adsorption force on the movable iron core 221; the reset piece 23 expands elastically to apply a force to the movable iron core 221 away from the stationary iron core 141, so that the sealing plug 222 closes the water outlet hole 12, thereby closing the electromagnetic valve.

In the process that the movable iron core 221 moves towards the static iron core 141 or towards the valve body 1 quickly, a speed difference exists between the movable iron core 221 and the sliding block 41, so that the sliding block 41 slides relative to the movable iron core 221; the moving slide block 41 generates acting force on the elastic member 42 to make the elastic member 42 elastically deform; partial kinetic energy of the movable iron core 221 is converted into the kinetic energy of the sliding block 41 and the elastic potential energy of the elastic element 42 for consumption, so that the movable iron core 221 moving fast is buffered to a certain extent, and the working stability of the electromagnetic valve is further improved.

The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited in sequence, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A straight-through electromagnetic valve comprises a valve body (1), wherein a cavity (11) is formed in the top of the valve body (1), a water outlet hole (12) communicated with the cavity (11) is formed in the bottom wall of the valve body (1) in a penetrating mode, a water inlet hole (13) is formed in the outer peripheral wall of the valve body (1), an electromagnetic coil (14) is arranged at the top of the valve body (1), and a static iron core (141) is arranged at one end, away from the valve body (1), of the electromagnetic coil (14); the method is characterized in that: a flow guide ring cavity (111) is formed in the inner side wall of the cavity (11) around the water outlet hole (12), and the flow guide ring cavity (111) is communicated with the water inlet hole (13); and a sealing mechanism (2) for sealing the water outlet hole (12) is arranged in the electromagnetic coil (14).

2. A straight through solenoid valve according to claim 1 wherein: the sealing mechanism (2) comprises a positioning sleeve (21), a sealing assembly (22) and a resetting piece (23); the positioning sleeve (21) penetrates through the electromagnetic coil (14), one end of the positioning sleeve (21) is connected with the inner side wall of the cavity (11), and the other end of the positioning sleeve (21) abuts against the static iron core (141); the sealing assembly (22) is arranged inside the positioning sleeve (21) in a sliding mode, and the sealing assembly (22) can be magnetically attracted with the static iron core (141); the reset piece (23) is sleeved outside the sealing component (22), and the reset piece (23) is used for pushing the sealing component (22) to close the water outlet hole (12) through elasticity.

3. A straight through solenoid valve according to claim 2 wherein: the sealing assembly (22) comprises a movable iron core (221) and a sealing plug (222); the movable iron core (221) is arranged in the positioning sleeve (21) in a sliding mode, and a mounting hole (3) penetrates through the end wall of the movable iron core (221); the sealing plug (222) is arranged in the mounting hole (3), the sealing plug (222) is located at one end, close to the valve body (1), of the movable iron core (221) and used for sealing the mounting hole (3), and one end, far away from the static iron core (141), of the sealing plug (222) can be used for sealing the water outlet hole (12).

4. A straight through solenoid valve according to claim 3 wherein: move iron core (221) lateral wall and be close to the one end of valve body (1) and be provided with installation ring groove (2211), move between iron core (221) and position sleeve (21) and locate in installation ring groove (2211) and form installation ring chamber (211), piece (23) that resets is located installation ring chamber (211).

5. A straight through solenoid valve according to claim 3 wherein: the sealing plug (222) periphery wall is provided with the butt ring piece (2221) that is used for restricting sealing plug (222) to break away from mounting hole (3), the butt ring groove (31) that supplies butt ring piece (2221) to support into are seted up to mounting hole (3) inside wall, butt ring piece (2221) periphery wall is provided with the guide ring face (2222) that are convenient for sealing plug (222) to support into mounting hole (3).

6. A straight through solenoid valve according to claim 5 wherein: the sealing assembly (22) further comprises a sealing plate (223), and the sealing plate (223) is arranged at one end, close to the static iron core (141), of the sealing plug (222) and used for closing the mounting hole (3); and a sealing ring groove (32) for the sealing plate (223) to abut into is arranged on the inner side wall of the mounting hole (3).

7. A straight through solenoid valve according to claim 6 wherein: a buffer component (4) is arranged at one end, away from the sealing plug (222), in the mounting hole (3), and the buffer component (4) comprises a sliding block (41) and an elastic piece (42); the sliding block (41) is arranged in the mounting hole (3) in a sliding manner; the elastic member (42) is disposed between the slide block (41) and the seal plate (223).

8. A straight through solenoid valve according to claim 7 wherein: the sliding block (41) periphery wall is provided with spacing ring piece (411) that are used for restricting sliding block (41) to break away from mounting hole (3), mounting hole (3) inside wall is provided with supplies spacing ring piece (411) gliding spacing ring groove (33).

9. A straight through solenoid valve according to claim 8 wherein: the side wall of the sliding block (41) close to the elastic piece (42) is provided with a vent hole (412) in a penetrating mode, and the inner side wall of the limiting ring groove (33) is provided with an air guide hole (331) in a penetrating mode.

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