CN110778776B

CN110778776B - Electromagnetic valve device capable of eliminating negative pressure in valve

Info

Publication number: CN110778776B
Application number: CN201910959240.7A
Authority: CN
Inventors: 钱月萍
Original assignee: Zhejiang Jinhua Cypress Electrical Technology Co ltd
Current assignee: Zhejiang Jinhua Cypress Electrical Technology Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2021-12-28
Anticipated expiration: 2039-10-10
Also published as: CN110778776A

Abstract

The invention provides a solenoid valve device capable of eliminating negative pressure in a valve, aiming at the problem that the negative pressure is easily generated in the interior of a solenoid valve in the working process of the solenoid valve in the prior art to influence the normal work, and belongs to the technical field of solenoid valves. The electromagnetic valve device capable of eliminating negative pressure in the valve has the advantages of being simple in structure, convenient to use and low in cost, not only can realize pressure balance inside a valve body of the electromagnetic valve, but also can realize control over water flow to avoid water flow backflow.

Description

Electromagnetic valve device capable of eliminating negative pressure in valve

Technical Field

The invention belongs to the technical field of electromagnetic valves, and particularly relates to an electromagnetic valve device capable of eliminating negative pressure in a valve.

Background

In daily life, the solenoid valve that drains uses as intelligent switch, has a lot of water equipment of being connected with the running water delivery pipe, generally installs the switch that the solenoid valve that drains is used for controlling rivers between delivery pipe and the water equipment, thereby the theory of operation of solenoid valve produces electromagnetic force drive sealing member work for solenoid realizes opening or closing of valve.

Because the solenoid valve needs to play sealed effect among the prior art, so the leakproofness of solenoid valve itself is also better, because the valve rod is done in the valve rod cover and is similar to the flexible work of piston after the solenoid valve circular telegram work, leads to making valve rod cover both sides to produce the pressure differential very easily among the solenoid valve working process, produces negative pressure in the valve very easily after the air in the valve rod cover is constantly extruded, thereby influences the work of valve rod in the valve rod cover, and then influences the normal use of solenoid valve.

Disclosure of Invention

According to the electromagnetic valve device capable of eliminating the negative pressure in the valve, the first pressure balance device is arranged on the valve rod sleeve, the second pressure balance device is arranged on the movable sealing head, so that the pressure balance in the valve body of the electromagnetic valve is realized, and the problem that the normal work is influenced by the negative pressure generated in the valve body in the working process of the electromagnetic valve in the prior art is effectively solved.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the utility model provides a can eliminate solenoid valve device of interior negative pressure of valve, includes solenoid valve body and fixed set up in solenoid valve body bottom and with solenoid valve body sealing connection's water knockout drum, solenoid valve body includes electromagnetic component and valve body subassembly, electromagnetic component including the shell that has the cavity, fixed set up in the inside coil of shell with fixed set up in quiet iron core in the cavity, valve body subassembly includes the valve rod cover of being connected with quiet iron core cooperation, the activity sets up the spring in the valve rod cover and has the valve rod of the movable seal head, the valve rod cover is provided with first pressure balance device with the fixed second pressure balance device that is provided with of movable seal head contact one end, the activity is sealed overhead fixedly.

Further, the sealed one end of valve rod cover one end is opened, and the valve rod cover is including the first cover body that is provided with sealed end and the second cover body with first cover body integrated into one piece, the external diameter of the first cover body is the same with the internal diameter of quiet iron core, and the fixed joint of first cover body is in quiet iron core, and second cover body external diameter is greater than first cover body internal diameter, and the second cover body sets up in the electromagnetic component outside and is connected with the cooperation of water knockout drum.

Furthermore, first pressure balance device is for fixed first ring that sets up in first box body open end, first ring is cut apart by a plurality of logical grooves are evenly, and the quantity that leads to the groove is the odd number strip.

Further, the second pressure balancing device is a second ring which is arranged on the movable sealing head and is connected with one side of the valve rod in a clamping mode, the second ring is uniformly divided by a plurality of convex strips, and the number of the convex strips is even.

Further, the valve rod includes the body of rod, sets up in the first connector of body of rod one end and sets up in the second connector of the other end, first connector is connected with the spring fit, and the second connector can be dismantled with the activity sealing head and be connected, the inside cavity of activity sealing head just is the flying saucer form, the axis of activity sealing head in the home range becomes the acute angle all the time with the axis of valve rod.

Furthermore, a water distribution cavity is formed in the water distributor, a water inlet pipe and a water outlet pipe are fixedly arranged outside the water distributor and communicated with the water distribution cavity, the water inlet pipe and the water outlet pipe are perpendicular to each other, the central axis of the water outlet pipe is overlapped with the central axis of the electromagnetic valve body, the water distribution cavity is also communicated with a regulating and controlling pipe, a regulating rod which can regulate and control water outlet flow and is hollow inside is arranged in the regulating and controlling pipe, and an air outlet communicated with the water distribution cavity is formed in the top of the regulating rod.

Furthermore, the motion path of the adjusting rod coincides with the central axis of the adjusting and controlling pipe, the adjusting rod is in threaded connection with the adjusting and controlling pipe and controls the water outlet flow through the screwing-in and screwing-out actions of the adjusting rod, the adjusting and controlling pipe, the water inlet pipe and the water outlet pipe are all located in the same plane, the adjusting and controlling pipe and the water inlet pipe are arranged at 135 degrees, and the adjusting and controlling pipe and the water outlet pipe are also arranged at 135 degrees.

Further, adjust the pole and include integrated into one piece and be the first body of rod, the second body of rod and the pole cap that the straight line was arranged, set up the ring channel between the first body of rod and the second body of rod, the sealed rubber ring of ring channel internalization joint, the fixed external screw thread of being connected with the cooperation of regulation and control pipe that is provided with in the pole body of the second body of rod, the water storage chamber has been seted up to pole cap inside, and a plurality of gas vents that link up with the water storage chamber are seted up at pole cap top.

Further, first exhaust passage has been seted up to first body of rod inside, the second exhaust passage who communicates with the water storage chamber is seted up to second body of rod inside, still be provided with the flaring portion that is used for water storage once on the second exhaust passage, the water storage chamber is used for the secondary water storage, first exhaust passage's diameter is greater than the diameter of flaring portion, and the diameter of flaring portion is greater than the diameter of second exhaust passage, and the diameter of water storage chamber is greater than first exhaust passage's diameter.

The invention has the following characteristics and beneficial effects:

1. according to the invention, the first pressure balance device is arranged on the valve rod sleeve, and the second pressure balance device is arranged on the movable sealing head, so that the pressure balance inside the valve body of the electromagnetic valve is effectively realized, and the service life of the electromagnetic valve is further effectively prolonged.

2. According to the invention, the flying saucer-shaped movable sealing head is detachably connected to the valve rod, so that displacement compensation can be realized due to inaccurate position in the sealing process of the movable sealing head and the water outlet, and the influence on the sealing property of the electromagnetic valve due to long-time position misalignment is avoided.

3. According to the invention, the flow of the water outlet pipe is regulated by screwing in and out the regulating rod, the exhaust channel is formed in the regulating rod body, the water pressure balance in the water distribution cavity is realized, the primary water storage is formed by arranging the flared part in the exhaust channel, and the secondary water storage is formed by arranging the water storage cavity in the rod cap, so that the problem of backflow of the water flow is effectively avoided.

Drawings

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

FIG. 1 is an exploded view of a solenoid valve assembly of the present invention for eliminating negative pressure within the valve;

FIG. 2 is a schematic structural diagram of a solenoid valve body of a solenoid valve device capable of eliminating negative pressure in the valve according to the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 4 is a schematic structural diagram of a valve stem sleeve of a solenoid valve device capable of eliminating negative pressure in the valve according to the present invention;

FIG. 5 is a schematic structural diagram of a movable sealing head of an electromagnetic valve device capable of eliminating negative pressure in the valve according to the present invention;

FIG. 6 is an exploded view of a valve stem, a spring and a movable sealing head of a solenoid valve assembly of the present invention for eliminating negative pressure in the valve;

FIG. 7 is a schematic structural diagram (1) of an adjusting rod of a solenoid valve device capable of eliminating negative pressure in the valve according to the present invention;

FIG. 8 is a schematic structural diagram (2) of an adjusting rod of the solenoid valve device capable of eliminating negative pressure in the valve according to the present invention;

fig. 9 is a cross-sectional view taken along the plane a-a in fig. 8.

In the figure, 1-the solenoid valve body; 2-a water separator; 3-an electromagnetic assembly; 31-a housing; 32-a coil; 33-a stationary core; 4-a valve body assembly; 41-valve stem sleeve; 411-the first sleeve body; 412-a second sleeve; 42-a spring; 43-a movable sealing head; 44-a valve stem; 441-a first connector; 442-a second connector; 443-a rod body; 5-a first pressure balancing device; 6-a second pressure balancing device; 61-a first circular ring; 62-through groove; 63-a second ring; 64-convex strips; 7-water dividing cavity; 8-water inlet pipe; 9-water outlet pipe; 10-regulating and controlling; 11-adjusting rod; 111-a first stick; 112-a second stick body; 113-a stem cap; 114-an annular groove; 115-sealing rubber ring; 116-a water storage cavity; 117-flared portion; 118-a first exhaust passage; 119-a second exhaust channel; 12-exhaust port.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, 2 and 3, an explosion diagram of a solenoid valve device capable of eliminating negative pressure in a valve, a schematic structural diagram of a solenoid valve body 1 and a sectional view of a B-B surface of the solenoid valve body 1 include the solenoid valve body 1 and a water separator 2 fixedly disposed at the bottom of the solenoid valve body 1 and hermetically connected with the solenoid valve body 1, the solenoid valve body 1 includes a solenoid assembly 3 and a valve body assembly 4, the solenoid assembly 3 includes a housing 31 with a cavity, a coil 32 fixedly disposed inside the housing 31 and a stationary core 33 fixedly disposed in the cavity, the valve body assembly 4 includes a valve stem 44 sleeve 41 cooperatively connected with the stationary core 33, a spring 42 movably disposed in the valve stem 44 sleeve 41 and a valve stem 44 with a movable sealing head 43, a first pressure balancing device 5 is fixedly disposed at a contact end of the valve stem 44 sleeve 41 and the movable sealing head 43, a second pressure balancing device 6 is fixedly disposed on the movable sealing head 43, the first pressure balance device 5 is arranged on the valve rod 44 sleeve 41, and the second pressure balance device 6 is arranged on the movable sealing head 43, so that the pressure balance inside the valve body of the electromagnetic valve is effectively realized, and the service life of the electromagnetic valve can be prolonged.

Referring to fig. 4 and 5, the structural schematic diagram of the valve stem 44 sleeve 41 and the movable sealing head 43, one end of the valve stem 44 sleeve 41 is sealed and the other end is open, the valve stem 44 sleeve 41 includes a first sleeve 411 provided with a sealed end and a second sleeve 412 integrally formed with the first sleeve 411, the outer diameter of the first sleeve 411 is the same as the inner diameter of the stationary iron core 33, the first sleeve 411 is fixedly clamped in the stationary iron core 33, the outer diameter of the second sleeve 412 is larger than the inner diameter of the first sleeve 411, the second sleeve 412 is arranged outside the electromagnetic assembly 3 and is connected with the water separator 2 in a matching manner, the mounting structure enables the valve stem 44 sleeve 41 to be fixed in the electromagnetic assembly 3, and the valve stem 44 moves in the valve stem 44 sleeve 41 through electromagnetic induction.

The first pressure balance device 5 is a first ring 61 fixedly arranged at the opening end of the first sleeve body 411, the first ring 61 is uniformly divided by a plurality of through grooves 62, and the number of the through grooves 62 is odd.

The second pressure balancing device 6 is a second ring 63 which is arranged on the movable sealing head 43 and is connected with one side of the valve rod 44 in a clamping mode, the second ring 63 is uniformly divided by a plurality of convex strips 64, and the number of the convex strips 64 is even.

The number difference exists between the through grooves 62 and the protruding strips 64 of the first pressure balancing device 5 and the second pressure balancing device 6, the protruding strips 64 and the through grooves 62 can be prevented from being matched and clamped, the pressure balancing function can be effectively realized by the two pressure balancing devices, and the mode of 3 through

grooves

62 and 4 protruding strips 64 is generally adopted in production.

Referring to fig. 6, the valve rod 44, the spring 42 and the movable sealing head 43 are exploded, the valve rod 44 includes a rod body 443, a first connector 441 disposed at one end of the rod body 443, and a second connector 442 disposed at the other end, the first connector 441 is connected with the spring 42 in a matching manner, the second connector 442 is detachably connected with the movable sealing head 43, the movable sealing head 43 is hollow and in a flying saucer shape, a central axis of the movable sealing head 43 in a movable range and a central axis of the valve rod 44 always form an acute angle, and the movable sealing head 43 in a flying saucer shape is detachably connected to the valve rod 44, so that displacement compensation can be realized due to inaccurate position in a sealing process of the movable sealing head 43 and a water outlet, and the influence on the sealing performance of the electromagnetic valve due to long-time position misalignment is avoided.

Referring to fig. 7, 8 and 9, a structure schematic diagram (1), (2) of an adjusting rod 11 in an electromagnetic valve device capable of eliminating negative pressure in a valve and a sectional view water separator 2 of an A-A surface are provided with a water separating cavity 7 chamber inside, a water inlet pipe 8 and a water outlet pipe 9 communicated with the water separating cavity 7 chamber are fixedly arranged outside the water separator 2, the water inlet pipe 8 and the water outlet pipe 9 are mutually vertical, the central axis of the water outlet pipe 9 is coincident with the central axis of the electromagnetic valve body 1, the water separating cavity 7 chamber is also communicated with a regulating pipe 10, an adjusting rod 11 capable of regulating and controlling water flow and hollow inside is arranged in the regulating pipe 10, the top of the adjusting rod 11 is also provided with an air outlet 12 communicated with the water separating cavity 7, the movement path of the adjusting rod 11 is coincident with the central axis of the regulating pipe 10, the adjusting rod 11 is connected in the regulating pipe 10 in a thread manner and realizes the control of the water flow through the screwing-in and screwing-out actions of the adjusting rod 11, the regulating and controlling pipe 10, the water inlet pipe 8 and the water outlet pipe 9 are all located in the same plane, the regulating and controlling pipe 10 and the water inlet pipe 8 are arranged at 135 degrees, the regulating and controlling pipe 10 and the water outlet pipe 9 are also arranged at 135 degrees, the internal and external pressure balance of the water distributor 2 can be realized by arranging the hollow regulating rod 11, the screwing-in and screwing-out actions of the regulating rod 11 can be realized through the thread regulation of the regulating rod 11, and then the regulation of the water outlet flow of the water outlet pipe 9 is realized.

Adjust pole 11 including integrated into one piece and be the first body of rod 111 of sharp arranging, the second body of rod 112 and pole cap 113, annular groove 114 has been seted up between the first body of rod 111 and the second body of rod 112, the sealed rubber ring 115 of annular groove 114 internal activity joint, fixed being provided with on the pole body of the second body of rod 112 and adjusting the external screw thread that is connected with the cooperation of accuse pipe 10, water storage chamber 116 has been seted up to pole cap 113 inside, a plurality of gas vents 12 that link up with water storage chamber 116 have been seted up at pole cap 113 top, it can exhaust the inside gas of liquid and make the inside and outside pressure balance of water knockout drum 2 to set up gas vent 12.

The first rod body 111 is internally provided with a first exhaust passage 118, the second rod body 112 is internally provided with a second exhaust passage 119 communicated with the water storage cavity 116, the second exhaust passage 119 is also provided with an expanded part 117 for primary water storage, the water storage cavity 116 is used for secondary water storage, the diameter of the first exhaust passage 118 is larger than that of the expanded part 117, the diameter of the expanded part 117 is larger than that of the second exhaust passage 119, the diameter of the water storage cavity 116 is larger than that of the first exhaust passage 118, the electromagnetic valve device is generally vertically arranged, when the electromagnetic valve device and the water separator 2 are horizontally arranged, because the water inlet pipe 8, the water outlet pipe 9 and the regulating and controlling pipe 10 are positioned in the same horizontal height, the inlet water is easy to flow out from the regulating and controlling pipe 10, the flared part 117 is arranged in the regulating rod 11 to form primary water storage, the water storage cavity 116 forms secondary water storage, so that a certain pressure is formed on the water distributor 2 and the water flow is prevented from flowing out of the regulating pipe 10 through the exhaust passages with different diameters.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims

1. The utility model provides a can eliminate solenoid valve device of interior negative pressure of valve, includes solenoid valve body and fixed the water knockout drum that sets up in solenoid valve body bottom and with solenoid valve body sealing connection, solenoid valve body includes electromagnetic component and valve body subassembly, its characterized in that: the electromagnetic assembly comprises a shell with a cavity, a coil fixedly arranged in the shell and a static iron core fixedly arranged in the cavity, the valve body assembly comprises a valve rod sleeve in matched connection with the static iron core, a spring movably arranged in the valve rod sleeve and a valve rod with a movable sealing head, a first pressure balancing device is fixedly arranged at one end, in contact with the movable sealing head, of the valve rod sleeve, a second pressure balancing device is fixedly arranged on the movable sealing head, the valve rod comprises a rod body, a first connector arranged at one end of the rod body and a second connector arranged at the other end of the rod body, the first connector is in matched connection with the spring, the second connector is detachably connected with the movable sealing head, the movable sealing head is hollow and is in a flying saucer shape, an acute angle is formed between the central axis of the movable sealing head in a movable range and the central axis of the valve rod all the time, and a water diversion cavity is formed in the water diverter, the water distributor is fixedly provided with a water inlet pipe and a water outlet pipe which are communicated with the water distribution cavity, the water inlet pipe and the water outlet pipe are mutually vertical, the central axis of the water outlet pipe is superposed with the central axis of the electromagnetic valve body, the water distribution cavity is also communicated with a regulating pipe, a regulating rod which can regulate and control the water outlet flow and is hollow inside is arranged in the regulating pipe, the top of the regulating rod is also provided with an air outlet communicated with the water distribution cavity, the motion path of the regulating rod is superposed with the central axis of the regulating pipe, the regulating rod is in threaded connection in the regulating pipe and realizes the control of the water outlet flow through the screwing-in and screwing-out actions of the regulating rod, the regulating pipe, the water inlet pipe and the water outlet pipe are all positioned in the same plane, the regulating pipe and the water inlet pipe are arranged at 135 degrees, the regulating pipe and the water outlet pipe are also arranged at 135 degrees, and the regulating rod comprises a first rod body, a second rod body and a rod cap which are integrally formed and are linearly arranged, the water storage device is characterized in that an annular groove is formed between the first rod body and the second rod body, the annular groove is movably clamped with a sealing rubber ring, an external thread matched and connected with the regulating and controlling pipe is fixedly arranged on the rod body of the second rod body, a water storage cavity is formed in the rod cap, and a plurality of exhaust ports communicated with the water storage cavity are formed in the top of the rod cap.

2. A solenoid valve device according to claim 1, wherein said solenoid valve device comprises: the valve rod sleeve is characterized in that one end of the valve rod sleeve is sealed and opened, the valve rod sleeve comprises a first sleeve body and a second sleeve body, the first sleeve body is provided with a sealing end, the second sleeve body is integrally formed with the first sleeve body, the outer diameter of the first sleeve body is the same as the inner diameter of the static iron core, the first sleeve body is fixedly clamped in the static iron core, the outer diameter of the second sleeve body is larger than the inner diameter of the first sleeve body, and the second sleeve body is arranged outside the electromagnetic assembly and is connected with the water segregator in a matched mode.

3. A solenoid valve device according to claim 1 or 2, wherein the negative pressure in the valve is eliminated by: the first pressure balancing device is a first circular ring fixedly arranged at the opening end of the first sleeve body, the first circular ring is uniformly divided by a plurality of through grooves, and the number of the through grooves is odd.

4. A solenoid valve device according to claim 1 or 2, wherein the negative pressure in the valve is eliminated by: the second pressure balancing device is a second ring which is arranged on the movable sealing head and is connected with one side of the valve rod in a clamping mode, the second ring is uniformly divided by a plurality of raised lines, and the number of the raised lines is even.

5. A solenoid valve device according to claim 1 or 2, wherein the negative pressure in the valve is eliminated by: first exhaust passage has been seted up to first body of rod inside, the second exhaust passage who communicates with the water storage chamber is seted up to second body of rod inside, still be provided with the flaring portion that is used for once water storage on the second exhaust passage, the water storage chamber is used for the secondary water storage, first exhaust passage's diameter is greater than the diameter of flaring portion, and the diameter of flaring portion is greater than the diameter of second exhaust passage, and the diameter in water storage chamber is greater than first exhaust passage's diameter.