CN211574273U - Normally closed electromagnetic valve for automobile braking - Google Patents
Normally closed electromagnetic valve for automobile braking Download PDFInfo
- Publication number
- CN211574273U CN211574273U CN201922350307.5U CN201922350307U CN211574273U CN 211574273 U CN211574273 U CN 211574273U CN 201922350307 U CN201922350307 U CN 201922350307U CN 211574273 U CN211574273 U CN 211574273U
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- valve
- kinetoplast
- seat
- steel ball
- normally closed
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Abstract
The utility model discloses a normally closed solenoid valve for automobile braking, including deciding the body, the magnet tube, reset spring, the kinetoplast, disk seat and supporting seat, the kinetoplast is installed in the magnet tube, decide body lower part and magnet tube inner wall fixed connection, reset spring installs between the body and the kinetoplast, supporting seat upper portion is installed in the magnet tube, the interference fit mounting is in the supporting seat for the disk seat, the kinetoplast is inlayed and is had the steel ball, the valve port position at disk seat top is formed with the conical surface, the steel ball of kinetoplast portion aims at the conical surface of disk seat, the valve port position that the kinetoplast passes through steel ball and below disk seat. In the normally closed solenoid valve of the utility model, the fixed body is fixed on the inner wall of the magnetism isolating pipe, the steel ball at the end part of the moving body and the valve port position of the valve seat below form sealing due to the action of the reset spring in the magnetism isolating pipe, and the solenoid valve is closed; the mover is moved upward against the hydraulic pressure and the restoring spring force by the action of the electromagnetic force, thereby opening the oil passage of the electromagnetic valve. The valve body is closed under the action of the spring, and is opened under the action of electrification or external force.
Description
Technical Field
The utility model relates to a normally closed solenoid valve, concretely relates to normally closed solenoid valve for automobile braking.
Background
In the existing scheme, the key sealing surface on the valve seat is determined by a thin-wall metal deep-drawing forming process, the requirement on the precision of a die is high, the cost of the die is high, the qualification rate of the existing product is low, and the production cost of parts is high. In order to ensure that the electromagnetic valve is sealed at the critical position of the valve port, the head of the moving body is embedded with the steel ball, but the spherical surface cannot be better attached to the position of the valve port, so that the sealing effect is general. In order to prevent the working medium from leaking and ensure that the sliding of the moving body is more reliable, a new technical scheme needs to be provided.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a sealed effectual, working medium does not leak normally closed solenoid valve for automobile braking.
The utility model provides a following technical scheme:
a normally closed electromagnetic valve for automobile braking comprises a fixed body, a magnetism isolating pipe, a return spring, a movable body, a valve seat and a supporting seat, wherein the movable body is installed in the magnetism isolating pipe, the lower portion of the fixed body is fixedly connected with the inner wall of the magnetism isolating pipe, the return spring is installed between the fixed body and the movable body, the upper portion of the supporting seat is installed in the magnetism isolating pipe, the valve seat is installed in the supporting seat in an interference fit mode, a steel ball is embedded in the end portion of the movable body, a conical surface is formed in the valve port position of the top of the valve seat, the steel ball at the end portion of the movable body is aligned to the conical surface of the valve seat.
Furthermore, a filter screen is arranged on the periphery of the supporting seat.
Furthermore, the magnetism isolating pipe, the fixed body and the supporting seat are welded and fixed at the upper and lower positions.
Compared with the prior art, the beneficial effects of the utility model are that: in the normally closed solenoid valve of the utility model, the fixed body is fixed on the inner wall of the magnetism isolating pipe, the steel ball at the end part of the moving body and the valve port position of the valve seat below form sealing due to the action of the reset spring in the magnetism isolating pipe, and the solenoid valve is closed; the mover is moved upward against the hydraulic pressure and the restoring spring force by the action of the electromagnetic force, thereby opening the oil passage of the electromagnetic valve. The valve body is closed under the action of the spring, and is opened under the action of electrification or external force.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional view of the valve seat of the present invention.
Fig. 3 is a perspective view of the valve seat of the present invention.
In the figure: 1. fixing the body; 2. a magnetism isolating pipe; 3. a return spring; 4. a moving body; 5. a valve seat; 6. a supporting seat; 7. a steel ball; 8. a conical surface; 9. filter screen, 10, valve port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-3, the utility model discloses a normally closed solenoid valve for automobile brake, including stationary block 1, magnetic isolation pipe 2, reset spring 3, kinetoplast 4, disk seat 5 and supporting seat 6, kinetoplast 4 is installed in magnetic isolation pipe 2, stationary block 1 lower part and 2 inner wall fixed connection of magnetic isolation pipe, reset spring 3 installs between stationary block 1 and kinetoplast 4, 6 upper portions of supporting seat are installed in magnetic isolation pipe 2, disk seat 5 is installed in supporting seat 6 with interference fit, kinetoplast 4 tip is inlayed and is had steel ball 7, for making the solenoid valve sealed effect better at the critical position of valve port, valve port 10 position at disk seat 5 top is formed with conical surface 8, the steel ball 7 of kinetoplast 4 tip aims at the conical surface 8 of disk seat 5, kinetoplast 4 forms sealedly through steel ball 7 and the valve port 10 position of disk seat 5 below.
In order to control the quality of the oil and prevent impurities from influencing the performance of the electromagnetic valve, a filter screen 9 is arranged on the periphery of the supporting seat 6. Can filter impurities in the oil.
The magnetism isolating pipe 2 is welded and fixed with the fixed body 1 and the supporting seat 6 at the upper and lower positions. The fixation of the fixing body 1 is ensured to be more reliable.
The moving body 4 slides in the magnetism isolating pipe 2, the magnetism isolating pipe 2 provides a guiding movement space for the moving body 4 to form a heart assembly for the work of the electromagnetic valve, and the magnetism isolating pipe 2 is used for isolating the working medium from the coil component so that the working medium is not leaked.
In the initial state, due to the action of the return spring 3, the ball 7 of the moving body 4 is in contact with the conical surface 8 of the valve seat 5, and the electromagnetic valve is in a closed state. When the coil is energized, the mover 4 is moved upward by the action of the electromagnetic force against the hydraulic pressure and the return spring force, thereby opening the oil passage of the electromagnetic valve.
The valve seat 5 adopts a machining method to ensure the dimensional accuracy of the key sealing conical surface, the yield of the valve seat is high, and the production cost is low.
In the normally closed solenoid valve of the utility model, the fixed body 1 is fixed on the inner wall of the magnetism isolating pipe 2, the moving body 4 forms a seal with the steel ball 7 at the end of the moving body 4 and the valve port 10 of the valve seat 5 below due to the action of the reset spring 3 in the magnetism isolating pipe 2, and the solenoid valve is closed; the mover 4 is moved upward against the hydraulic pressure and the restoring spring force by the electromagnetic force, thereby opening the oil passage of the electromagnetic valve. The valve body is closed under the action of the spring, and is opened under the action of electrification or external force.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A normally closed electromagnetic valve for automobile braking is characterized in that: comprises a fixed body (1), a magnetism isolating pipe (2), a return spring (3), a moving body (4), a valve seat (5) and a supporting seat (6), the moving body (4) is arranged in the magnetism isolating pipe (2), the lower part of the fixed body (1) is fixedly connected with the inner wall of the magnetism isolating pipe (2), the return spring (3) is arranged between the fixed body (1) and the moving body (4), the upper part of the supporting seat (6) is arranged in the magnetism isolating pipe (2), the valve seat (5) is arranged in the supporting seat (6) by interference fit, a steel ball (7) is embedded at the end part of the moving body (4), a conical surface (8) is formed at the position of a valve port (10) at the top of the valve seat (5), the steel ball (7) at the end of the moving body (4) is aligned with the conical surface (8) of the valve seat (5), the moving body (4) forms a seal through the steel ball (7) and the position of the valve port (10) of the lower valve seat (5).
2. The normally closed electromagnetic valve for braking an automobile according to claim 1, characterized in that: the periphery of the supporting seat (6) is provided with a filter screen (9).
3. The normally closed electromagnetic valve for braking an automobile according to claim 1, characterized in that: the magnetism isolating pipe (2) is welded and fixed with the fixed body (1) and the supporting seat (6) at the upper and lower positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922350307.5U CN211574273U (en) | 2019-12-24 | 2019-12-24 | Normally closed electromagnetic valve for automobile braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922350307.5U CN211574273U (en) | 2019-12-24 | 2019-12-24 | Normally closed electromagnetic valve for automobile braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211574273U true CN211574273U (en) | 2020-09-25 |
Family
ID=72548767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922350307.5U Active CN211574273U (en) | 2019-12-24 | 2019-12-24 | Normally closed electromagnetic valve for automobile braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211574273U (en) |
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2019
- 2019-12-24 CN CN201922350307.5U patent/CN211574273U/en active Active
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