CN111271485A - Movable valve core structure and electromagnetic valve - Google Patents

Movable valve core structure and electromagnetic valve Download PDF

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Publication number
CN111271485A
CN111271485A CN202010201980.7A CN202010201980A CN111271485A CN 111271485 A CN111271485 A CN 111271485A CN 202010201980 A CN202010201980 A CN 202010201980A CN 111271485 A CN111271485 A CN 111271485A
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CN
China
Prior art keywords
valve core
movable valve
diaphragm
movable
electromagnetic valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010201980.7A
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Chinese (zh)
Inventor
张宏
龙汉钊
胡云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Better Carry Electrics Shenzhen Co ltd
Original Assignee
Better Carry Electrics Shenzhen Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Better Carry Electrics Shenzhen Co ltd filed Critical Better Carry Electrics Shenzhen Co ltd
Priority to CN202010201980.7A priority Critical patent/CN111271485A/en
Publication of CN111271485A publication Critical patent/CN111271485A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0236—Diaphragm cut-off apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0672—One-way valve the valve member being a diaphragm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention discloses a movable valve core structure and an electromagnetic valve, wherein the movable valve core structure comprises a movable valve core body, and the movable valve core body moves under the action of electromagnetism to open the electromagnetic valve or moves under the action of the elasticity of an elastic component to close the electromagnetic valve; the elastic component is arranged at the tail part of the movable valve core body; the diaphragm structure is flexible material, includes: the valve comprises a central sealing body, a peripheral sealing ring and a diaphragm connected with the central sealing body and the peripheral sealing ring, wherein the central sealing body is installed on the head of the movable valve core body and used for realizing the opening function and the closing function of the valve body, and the peripheral sealing ring is used for sealing the joint of the shell of the movable valve core body and a bent pipe structure. According to the invention, the diaphragm structure is arranged and connected at the head part of the movable valve core body, so that cooling liquid does not flow through the interior of the valve core of the electromagnetic valve in the opening and closing processes of the electromagnetic valve, the service life of the electromagnetic valve is prolonged on one hand, and the pressure loss of the cooling liquid is reduced on the other hand.

Description

Movable valve core structure and electromagnetic valve
Technical Field
The invention relates to the technical field of electromagnetic valves, in particular to a movable valve core structure and an electromagnetic valve.
Background
The electromagnetic valve is an actuating element controlled by electromagnetism, and in an SCR (selective Catalytic reduction) aftertreatment system, the on-off of cooling liquid is mainly controlled by the cooling liquid electromagnetic valve, so that the heating of a urea box of the SCR aftertreatment system is realized. The existing cooling liquid electromagnetic valve adopts the design that the cooling liquid flows through the movable valve core and the inner part of the sleeve, the inner structure of the valve core is complex, the processing cost is high, and the inner parts of the valve core and the sleeve are in long-term contact with the cooling liquid, so that the valve core and the sleeve are easily blocked or corroded by impurities in the cooling liquid, and the service life of the electromagnetic valve is influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a movable valve core structure, wherein a diaphragm structure is arranged and connected at the head part of a movable valve core body, so that cooling liquid does not flow through the interior of the valve core in the opening and closing processes of an electromagnetic valve, the service life of the electromagnetic valve is prolonged, and the pressure loss of the cooling liquid is reduced.
The technical scheme of the invention is as follows: the invention provides a movable valve core structure, comprising:
the movable valve core body moves under the action of electromagnetism to open the electromagnetic valve or moves under the action of the elasticity of the elastic piece to close the electromagnetic valve;
the elastic piece is arranged at the tail part of the movable valve core body;
the diaphragm structure is flexible material, includes: the valve comprises a central sealing body, a peripheral sealing ring and a diaphragm connected with the central sealing body and the peripheral sealing ring, wherein the central sealing body is installed on the head of the movable valve core body and used for realizing the opening function and the closing function of the valve body, and the peripheral sealing ring is used for sealing the joint of the shell of the movable valve core body and a bent pipe structure.
Further, the cross section of the diaphragm is arc-shaped.
Further, the membrane is provided with transverse corrugations.
Further, the center seal body is integrally formed with the diaphragm.
Further, the elastic component is a spring.
Furthermore, the tail part of the movable valve core body is sleeved into one end of the spring, and the other end of the spring is abutted to the fixed valve core; or the tail part of the movable valve core body is provided with an installation cavity, one end of the spring is embedded into the installation cavity, and the other end of the spring is abutted to the fixed valve core through a positioning column.
Furthermore, the central sealing body is buckled on the head part of the movable valve core body.
Further, a clamping table is arranged on the head of the movable valve element body, a clamping groove is formed in the clamping table, a clamping hole matched with the clamping table is formed in the bottom surface of the central sealing body, a clamping protrusion is formed on the side wall of the clamping hole, and when the head of the movable valve element body is sleeved with the central sealing body, the clamping protrusion is clamped in the clamping groove.
The present invention also provides a solenoid valve comprising: the valve comprises a pipe bending structure, a shell connected with the pipe bending structure, a fixed valve core arranged in the shell, and a movable valve core arranged in the shell and corresponding to the fixed valve core, wherein the movable valve core is of the above structure.
Furthermore, the elbow structure is provided with a first port, a cavity communicated with the first port and a second port communicated with the cavity, the central sealing body is arranged corresponding to an opening where the second port is connected with the cavity, and the joint of the shell and the elbow structure is provided with the peripheral sealing ring.
By adopting the scheme, the invention provides the movable valve core structure, the head of the movable valve core body is connected with the diaphragm structure in an installing manner, so that cooling liquid does not flow through the inside of the valve core in the opening and closing processes of the electromagnetic valve, and directly flows out of the bent pipe structure above the diaphragm structure to realize cooling or heating of equipment, on one hand, the service life of the electromagnetic valve is prolonged, on the other hand, the pressure loss of the cooling liquid is reduced, and the movable valve core structure is simple in structure, convenient to produce and convenient to reduce the production cost. The invention also provides an electromagnetic valve which is provided with the movable valve core structure, and the diaphragm structure is arranged between the elbow structure and the electromagnetic valve body to isolate the elbow structure from the electromagnetic valve body, so that cooling liquid does not flow through the interior of the valve core in the opening and closing processes of the electromagnetic valve, the service life of the electromagnetic valve is prolonged, and the pressure loss of the cooling liquid is reduced.
Drawings
Fig. 1 is a schematic cross-sectional view of a movable valve core structure according to a first embodiment of the present invention.
FIG. 2 is a schematic sectional view of a solenoid valve structure provided with a movable valve element structure according to a first embodiment of the present invention
Fig. 3 is a schematic cross-sectional view of a movable valve core structure according to a second embodiment of the present invention.
Fig. 4 is a schematic sectional view of a solenoid valve structure provided with a movable valve element structure of a second embodiment of the present invention.
Fig. 5 is a perspective view of a movable valve core structure according to a first embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Example 1
As shown in fig. 1-2 and 5, the present embodiment is a movable valve core structure, including: the electromagnetic valve comprises a movable valve core body 1, an elastic component 2 and a diaphragm structure 3, wherein the movable valve core body 1 moves under the action of electromagnetism to open the electromagnetic valve or moves under the action of the elasticity of the elastic component 2 to close the electromagnetic valve; the elastic component 2 is arranged at the tail part of the movable valve core body 1 and is positioned between the movable valve core body 1 and the fixed valve core 4. The diaphragm structure 3 includes a central sealing body 32, a peripheral sealing ring 33, and a diaphragm 31 connecting the central sealing body 32 and the peripheral sealing ring 33. The central sealing body 32 is mounted on the head of the movable valve core body 1 and used for realizing the opening function and the closing function of the valve body, and the peripheral sealing ring 33 is used for sealing the joint of the shell of the movable valve core body 1 and the elbow structure 6. Specifically, the central sealing body 32, the diaphragm 31 and the peripheral sealing ring 33 are integrally formed and made of flexible materials, more preferably, flexible corrosion-resistant rubber materials, and the central sealing body 32 is sealed with the inner wall of the elbow structure 6 to isolate the cooling liquid outside the electromagnetic valve. As shown in fig. 2, the cross section of the diaphragm 31 is arc-shaped, and preferably, the diaphragm structure 3 is bowl-shaped. The edge of the diaphragm 31 is provided with a circle of peripheral sealing ring 33, the arc-shaped structure of the diaphragm 31 improves the ductility of the diaphragm, when the central sealing body 32 moves downwards together with the movable valve core body 1, the diaphragm is pulled to deform so as to support the movement of the central sealing body 32, and when the central sealing body 32 moves upwards together with the movable valve core body 1, the electromagnetic valve is closed. In a preferred embodiment, the membrane 31 may also be provided with transverse corrugations, further improving the longitudinal stretch properties of the membrane 31.
The central sealing body 32 is fastened to the head of the movable valve element body 1, specifically, a fastening table 11 is disposed on the head of the movable valve element body 1, a fastening groove (not labeled) is disposed on the fastening table 11, a fastening hole (not labeled) matched with the fastening table 11 is disposed on the bottom surface of the central sealing body 32, a fastening protrusion is disposed on a side wall of the fastening hole, and when the central sealing body 32 is sleeved on the head of the movable valve element body 1, the fastening protrusion is fastened in the fastening groove. The diaphragm structure 3 is tightly connected with the movable valve core body 1 through the central sealing body 32, and the central sealing body 32 moves up and down along with the movable valve core body 1 to realize the opening and closing of the electromagnetic valve.
Further, the elastic component 2 includes a spring 21 and a positioning column 22 sleeved at the bottom of the spring 21, an installation cavity 12 is provided in the movable valve core body 1, the spring 21 and the positioning column 22 are accommodated in the installation cavity 12, and the positioning column 22 protrudes out of the bottom surface of the movable valve core body 1 in a natural state of the spring 21. Specifically, the positioning column 22 includes a stem 221 and an end 222 connected to one end of the stem 221, the diameter of the stem 221 is smaller than that of the end 222, the diameter of the end 222 is the same as that of the installation cavity 12, and the spring 21 is sleeved on the stem 221. That is, when the electromagnetic coil is powered on, the fixed valve core generates magnetic force, the movable valve core body 1 is attracted to the fixed valve core 4 by the magnetic force, the movable valve core body 1 extrudes the spring to drive the central sealing body 32 of the diaphragm structure 3 to move downwards, so that the central sealing body 32 is separated from the inlet of the elbow 64 in the elbow structure, and the cooling liquid flows in from the inlet of the elbow 64 and flows to the third port 63 along the elbow 64. When the electromagnetic coil is powered off, the magnetic force disappears, the movable valve core body 1 returns to the original position under the elastic force action of the elastic component 2, and meanwhile, the central sealing body 32 is pressed to the inlet of the bent pipe 64 again, so that the function of closing the electromagnetic valve is realized.
Example 2
As shown in fig. 3-4, the present embodiment is a movable valve core structure, which is different from the structure in embodiment 1 in that the elastic component 2 ' is a spring, a tail portion of the movable valve core body 1 ' is sleeved into one end of the spring, and the other end of the spring is abutted to the fixed valve core 4 '. Specifically, the outer diameter of the lower portion of the movable valve core body 1 ' is smaller than the outer diameter of the upper portion of the movable valve core body 1 ', namely, a step 12 ' is arranged between the upper portion and the lower portion of the movable valve core body 1 ', the lower portion of the movable valve core body 1 ' is sleeved in the spring, one end of the spring abuts against the top of the step 12 ', and the other end of the spring abuts against the fixed valve core 4 '. The elastic member 2' exerts the same technical effects as the elastic member 2 in embodiment 1.
As shown in fig. 2 and 4, the present invention also provides a solenoid valve provided with the movable valve element structure described in embodiment 1 or embodiment 2 above, the solenoid valve further including: the valve comprises a pipe bending structure 6, a shell 8 connected with the pipe bending structure 6, a fixed valve core 4 arranged in the shell 8, and a movable valve core structure arranged in the shell 8 and corresponding to the fixed valve core 4. The elbow structure 6 has a first port 61, a cavity communicated with the first port 61, and a second port 62 communicated with the cavity, the central sealing body 32 is arranged corresponding to the opening of the second port 62 connected with the cavity, and the peripheral sealing ring 33 is arranged at the joint of the outer shell 8 and the elbow structure 6.
Specifically, the elbow structure 6 is provided with a first port 61 and a second port 62 at two ends in the vertical direction, and a third port 63 in the horizontal direction, the first port 61 is communicated with the second port 62, the first port 61 is a cooling liquid inlet, the third port 63 is a cooling liquid outlet, and the housing 8 is fixedly connected with the elbow structure 6 through a connecting pipe 7. An elbow 64 is arranged in the elbow structure 6, the diameter of the elbow 64 is smaller than the diameters of the first, second and third ports, the inlet of the elbow 64 is communicated with the second port 62, and the outlet of the elbow 64 is communicated with the third port 63; the outer wall of the elbow 64 is fixedly connected to the inner wall of the elbow structure 6. Set up diaphragm structure 3 between elbow structure 6 with solenoid valve body 1 keeps apart both for coolant liquid is kept apart in solenoid valve switching process above diaphragm structure 3, and does not flow through inside the case, has improved the life of solenoid valve on the one hand, and on the other hand has reduced the loss of pressure of coolant liquid. When the solenoid valve is opened, the central sealing body 32 of the diaphragm structure 3 is separated from the inlet of the elbow 64, and cooling liquid enters the elbow 64 and flows into equipment through the third port 63 for cooling; when the solenoid valve is closed, the central sealing body 32 is pressed against the inlet of the elbow 64 again, and the cooling liquid cannot flow into the elbow 64 and further cannot flow into the equipment for cooling.
In summary, according to the invention, the diaphragm structure is connected to the head of the movable valve core body, the extended flexible diaphragm is arranged on the diaphragm structure, the cooling liquid is isolated outside the movable valve core body, the peripheral sealing ring arranged on the edge of the diaphragm is sealed with the inner wall of the bent pipe structure, so that the cooling liquid does not pass through the inside of the working electromagnetic valve core, the probability of damage to the inside of the electromagnetic valve is reduced, the service life of the electromagnetic valve is prolonged, and the pressure loss of the cooling liquid is reduced to a certain extent. The invention also provides an electromagnetic valve which is provided with the movable valve core structure. The movable valve core structure and the electromagnetic valve have simple structures, but obtain better use effect and are worth being widely popularized and used.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A movable valve core structure is characterized by comprising:
the movable valve core body moves under the action of electromagnetism to open the electromagnetic valve or moves under the action of the elasticity of the elastic piece to close the electromagnetic valve;
the elastic piece is arranged at the tail part of the movable valve core body;
the diaphragm structure is flexible material, includes: the valve comprises a central sealing body, a peripheral sealing ring and a diaphragm connected with the central sealing body and the peripheral sealing ring, wherein the central sealing body is installed on the head of the movable valve core body and used for realizing the opening function and the closing function of the valve body, and the peripheral sealing ring is used for sealing the joint of the shell of the movable valve core body and a bent pipe structure.
2. The dynamic valve core structure according to claim 1, wherein the cross section of the diaphragm is arc-shaped.
3. The dynamic spool structure of claim 1, wherein said diaphragm is provided with transverse corrugations.
4. The dynamic spool structure according to claim 1, wherein said central seal body, said peripheral seal ring and said diaphragm are integrally formed.
5. The dynamic spool structure according to any one of claims 1-4, wherein said resilient member is a spring.
6. The movable valve core structure according to claim 5, wherein the tail part of the movable valve core body is sleeved into one end of the spring, and the other end of the spring is abutted against the fixed valve core;
or the tail part of the movable valve core body is provided with an installation cavity, one end of the spring is embedded into the installation cavity, and the other end of the spring is abutted to the fixed valve core through a positioning column.
7. The movable valve element structure according to claim 1, wherein the central sealing body is fastened to the head portion of the movable valve element body.
8. The movable valve element structure according to claim 7, wherein a locking platform is disposed on the head of the movable valve element body, a locking groove is disposed on the locking platform, a locking hole matched with the locking platform is disposed on the bottom surface of the central sealing body, a locking protrusion is disposed on the side wall of the locking hole, and when the central sealing body is sleeved on the head of the movable valve element body, the locking protrusion is locked in the locking groove.
9. A solenoid valve, comprising: the valve comprises a bent pipe structure, a shell connected with the bent pipe structure, a fixed valve core arranged in the shell, and a movable valve core arranged in the shell and corresponding to the fixed valve core, wherein the movable valve core is the movable valve core structure according to any one of claims 1-4 or 6-8.
10. The electromagnetic valve according to claim 9, wherein the elbow structure has a first port, a cavity communicating with the first port, and a second port communicating with the cavity, the central sealing body is disposed corresponding to an opening of the second port connected to the cavity, and the peripheral sealing ring is disposed at a connection position of the outer shell and the elbow structure.
CN202010201980.7A 2020-03-20 2020-03-20 Movable valve core structure and electromagnetic valve Pending CN111271485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010201980.7A CN111271485A (en) 2020-03-20 2020-03-20 Movable valve core structure and electromagnetic valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010201980.7A CN111271485A (en) 2020-03-20 2020-03-20 Movable valve core structure and electromagnetic valve

Publications (1)

Publication Number Publication Date
CN111271485A true CN111271485A (en) 2020-06-12

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ID=71002609

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010201980.7A Pending CN111271485A (en) 2020-03-20 2020-03-20 Movable valve core structure and electromagnetic valve

Country Status (1)

Country Link
CN (1) CN111271485A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114017513A (en) * 2021-10-27 2022-02-08 安徽熹贾精密技术有限公司 Automobile oil tank isolating valve and valve core sealing structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114017513A (en) * 2021-10-27 2022-02-08 安徽熹贾精密技术有限公司 Automobile oil tank isolating valve and valve core sealing structure

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Address after: 215101 floor 1-3, building 5, No. 8, Yangyun Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province

Applicant after: Bedkelly electric (Suzhou) Co.,Ltd.

Address before: 518000 Room 101, building a, 33 Jinlong 3rd road, Tongle community, Baolong street, Longgang District, Shenzhen City, Guangdong Province

Applicant before: BETTER-CARRY ELECTRICS SHENZHEN CO.,LTD.