CN220320440U

CN220320440U - Proportional control solenoid valve

Info

Publication number: CN220320440U
Application number: CN202322052996.8U
Authority: CN
Inventors: 陈军; 褚华鹤; 周海芬
Original assignee: Wenzhou Hanhao Electronic Technology Co ltd
Current assignee: Wenzhou Hanhao Electronic Technology Co ltd
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-01-09
Anticipated expiration: 2033-08-01

Abstract

The utility model discloses a proportional regulating electromagnetic valve, which comprises an electromagnetic iron core assembly, a valve seat, a valve sleeve, a valve core, a compression spring and a spring seat, wherein the spring seat is arranged at the outlet end of the valve sleeve, an overflow channel is axially arranged on the spring seat, and the compression spring is clamped between the spring seat and the valve core; the spring positioning assembly comprises a positioning ring and a locking ring, a limiting flange is arranged on the inner wall of the flow passage, the positioning ring and the locking ring are in threaded fit, the limiting flange is clamped between the positioning ring and the locking ring, the positioning ring is arranged on one side, close to the compression spring, of the limiting flange, the positioning ring is in a conical shape, one end, far away from the valve core, of the compression spring is sleeved on the positioning ring, and a positioning groove for embedding the end part of the compression spring is formed in the valve core. According to the utility model, the compression spring is effectively positioned by arranging the spring positioning assembly, the universality is good, the multi-specification spring is adapted, the assembly production is convenient, and the service life of the compression spring can be prolonged.

Description

Proportional control solenoid valve

Technical Field

The utility model relates to the technical field of valves, in particular to a proportional regulating electromagnetic valve.

Background

The existing engine lubricating oil system mainly comprises an oil pump, an oil filter and a proportion adjusting electromagnetic valve, wherein engine oil pumped by the oil pump enters an oil inlet of the proportion adjusting electromagnetic valve after being filtered by the oil filter, a magnetic core (usually an iron core, the lower part of the magnetic core is the same as the upper part of the magnetic core) pushes a valve core to move left and right relative to a valve sleeve in a straight line mode after the electromagnetic valve is electrified, so that the opening size of an adjusting oil port on the electromagnetic valve is adjusted, and part of engine oil flows out from the adjusting oil port on the electromagnetic valve and then enters the oil pump again.

The existing proportional regulating electromagnet generally comprises an electromagnetic iron core assembly, a valve seat, a valve sleeve, a valve core, a compression spring and a spring seat, wherein the position of the valve core is controlled through the balance of the electromagnetic force of the electromagnetic iron core assembly and the spring force of the compression spring, so that the size of a throttling hole is regulated to control the flow. The compression spring in the existing proportion adjusting electromagnet is arranged between the valve core and the spring seat, and in order to position the spring, positioning grooves for embedding the end parts of the compression spring are usually formed in the valve core and the spring seat. However, during assembly, the specification of the compression spring and the diameter of the positioning groove cannot be completely matched, if the diameter of the positioning groove is larger than that of the compression spring, the positioning groove loses the positioning effect, and the compression spring assembled in this way is easy to distort in the long-term use process, namely, deformation deviating from the central shaft is generated, so that the service life of the compression spring is greatly reduced.

Disclosure of Invention

The utility model aims to provide a proportional regulating electromagnetic valve which is used for effectively positioning a compression spring by arranging a spring positioning assembly, has good universality, is suitable for multiple specifications of springs, is convenient for assembly and production, and can prolong the service life of the compression spring.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the proportional regulating electromagnetic valve comprises an electromagnetic iron core assembly, a valve seat, a valve sleeve, a valve core, a compression spring and a spring seat, wherein the valve seat is arranged at one end of the electromagnetic iron core assembly, the valve sleeve is arranged on one side of the valve seat, the valve core is arranged in the valve sleeve, the spring seat is arranged at the outlet end of the valve sleeve, the spring seat is axially provided with a flow passage, and the compression spring is clamped between the spring seat and the valve core; still including spring positioning assembly, spring positioning assembly includes retainer plate and lock ring, be equipped with the spacing flange that extends to the inner circumference on the inner wall of overflow passageway, retainer plate and lock ring screw-thread fit, spacing flange presss from both sides and establishes between retainer plate and lock ring, and the retainer plate sets up in one side that the spacing flange is close to compression spring, the appearance of retainer plate is interior little outside big toper shape, compression spring keeps away from one end cover of case and establishes on the retainer plate, and be provided with the constant head tank that is used for supplying compression spring tip embedding on the case.

Through adopting above-mentioned technical scheme, set up the location that spring positioning assembly is used for compression spring on the spring holder, spring positioning assembly comprises retainer plate and lock ring, both screw-thread fit and clamp the installation of spring positioning assembly in the spacing flange in the spring holder, wherein, the retainer plate appearance is interior little outside big toper shape, compression spring can overlap and establish on the retainer plate, the diameter is different in the retainer plate axial direction, but the compression spring of adaptation difference, one end through spring positioning assembly to compression spring is fixed a position, compression spring's the other end only need support tightly in the constant head tank of case can, thereby guarantee the coaxial at compression spring both ends. Therefore, the spring positioning assembly can effectively position the compression spring, is good in universality, is suitable for multiple specifications of springs, is convenient for assembly production, and can prolong the service life of the compression spring.

The utility model is further characterized in that the outer end of the positioning ring is provided with a thread groove, the periphery of the locking ring is provided with a thread section matched with the thread groove, and the locking ring is provided with a compression flange which extends outwards and is used for propping against the outer end of the limit flange.

Through adopting above-mentioned technical scheme, screw retainer plate and lock ring to when the tight flange clamp limit flange of edge and lock ring of retainer plate, can accomplish the equipment of spring positioning assembly, stable in structure is reliable, and the dismouting is very convenient.

The utility model is further characterized in that an elastic washer is sleeved on the periphery of the locking ring, and the elastic washer is clamped between the pressing flange and the limiting flange.

Through adopting above-mentioned technical scheme, when screwing retainer plate and lock ring, the elastic washer can provide an axial pretightning force of lock ring, promotes the screw thread frictional force between lock ring and the retainer plate, and then plays locking effect.

The utility model is further characterized in that a first inner hexagonal groove is formed in the inner end of the positioning ring, and a second inner hexagonal groove is formed in the outer end of the locking ring.

Through adopting above-mentioned technical scheme, during the installation, can insert two hexagon spanners respectively in the first interior hexagon groove of retainer plate and the second interior hexagon groove of locking circle, both are anti-rotatory, realize locking or the separation of both for the dismouting operation is lighter.

The utility model is further arranged that the inner diameter of the positioning ring is the same as the inner diameter of the locking ring.

Through adopting above-mentioned technical scheme, avoid inside production step when the two cooperations, resistance and noise when can reduce the fluid and pass through.

The utility model further provides that the flow passage is externally provided with the stepped grooves from inside to outside, and tapered guide surfaces are arranged between every two stepped grooves.

By adopting the technical scheme, the diameter adaptation range of the compression spring can be improved by matching the stepped groove with the positioning ring.

The utility model is further arranged that the inner end of the flow passage is provided with a first guide flaring, and the outer end of the positioning groove is provided with a second guide flaring.

Through adopting above-mentioned technical scheme, be convenient for compress spring both ends insert fast in the passageway that overflows and constant head tank.

The utility model further provides that the spring seat is in threaded connection with the outlet end of the valve sleeve, the outer end of the spring seat is provided with a limiting convex edge extending towards the periphery, and the limiting convex edge abuts against the outer end of the valve sleeve.

Through adopting above-mentioned technical scheme, the connection structure of spring holder is simple reliable, and the dismouting is very convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

fig. 2 is an enlarged schematic view of the portion a in fig. 1.

In the figure: 1. an electromagnetic core assembly; 2. a valve seat; 3. a valve sleeve; 4. a valve core; 5. a compression spring; 6. a spring seat; 7. a flow-through channel; 8. a spring positioning assembly; 9. a positioning ring; 10. a locking ring; 11. a limit flange; 12. a positioning groove; 13. a thread groove; 14. a threaded section; 15. a pressing flange; 16. an elastic washer; 17. a first inner hexagonal groove; 18. a second inner hexagonal groove; 19. a stepped groove; 20. a conical guide surface; 21. a first guide flare; 22. a second guide flare; 23. and a limit convex edge.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: the proportional adjustment electromagnetic valve comprises an electromagnetic iron core assembly 1, a valve seat 2, a valve sleeve 3, a valve core 4, a compression spring 5 and a spring seat 6, wherein the valve seat 2 is arranged at one end of the electromagnetic iron core assembly 1, the valve sleeve 3 is arranged on one side of the valve seat 2, the valve core 4 is arranged in the valve sleeve 3, the spring seat 6 is arranged at the outlet end of the valve sleeve 3, the spring seat 6 is axially provided with a through-flow channel 7, and the compression spring 5 is clamped between the spring seat 6 and the valve core 4; the proportional adjustment solenoid valve further comprises a spring positioning assembly 8, the spring positioning assembly 8 comprises a positioning ring 9 and a locking ring 10, a limiting flange 11 extending towards the inner periphery is arranged on the inner wall of the through-flow channel 7, the limiting flange 11 and the spring seat 6 are of an integrated structure, the positioning ring 9 and the locking ring 10 are in threaded fit, the limiting flange 11 is clamped between the positioning ring 9 and the locking ring 10, the positioning ring 9 is arranged on one side, close to the compression spring 5, of the positioning ring 9, the outer shape of the positioning ring 9 is in a conical shape with the small inner side and the large outer side, one end of the compression spring 5, far away from the valve core 4, is sleeved on the positioning ring 9, a positioning groove 12 used for embedding the end part of the compression spring 5 is arranged on the valve core 4, and the diameter of the positioning groove 12 is slightly larger than the diameter of the spring, so that the positioning is not affected. The spring positioning assembly 8 is arranged on the spring seat 6 and used for positioning the compression spring 5, the spring positioning assembly 8 is composed of a positioning ring 9 and a locking ring 10, the positioning ring 9 is in a conical shape with the inner small and the outer large in an outer shape, the positioning ring 9 is in threaded fit and clamped in a limiting flange 11 in the spring seat 6, the compression spring 5 can be sleeved on the positioning ring 9, the diameters of the positioning ring 9 in the axial direction are different, different compression springs 5 can be adapted, one end of the compression spring 5 is positioned through the spring positioning assembly 8, and the other end of the compression spring 5 only needs to be abutted in a positioning groove 12 of the valve core 4, so that the coaxiality of two ends of the compression spring 5 is ensured. Therefore, the spring positioning assembly 8 can effectively position the compression spring 5, is good in universality, is suitable for multiple specifications of springs, is convenient for assembly production, and can prolong the service life of the compression spring 5.

As shown in fig. 2, the outer end of the positioning ring 9 is provided with a thread groove 13, the outer periphery of the locking ring 10 is provided with a thread section 14 matched with the thread groove 13, namely, the inner wall of the thread groove 13 is provided with an internal thread, the outer wall of the thread section 14 is provided with an external thread matched with the internal thread, and the locking ring 10 is provided with a compression flange 15 which extends towards the outer periphery and is used for propping against the outer end of the limit flange 11. When the positioning ring 9 and the locking ring 10 are screwed, and the edge of the positioning ring 9 and the compression flange 15 of the locking ring 10 clamp the limit flange 11, the assembly of the spring positioning assembly 8 can be completed, the structure is stable and reliable, and the disassembly and assembly are very convenient.

The outer periphery of the locking ring 10 is sleeved with an elastic washer 16, the elastic washer 16 is made of rubber materials, and the elastic washer 16 is clamped between the pressing flange 15 and the limiting flange 11. When the positioning ring 9 and the locking ring 10 are screwed, the elastic washer 16 can provide an axial pretightening force for the locking ring 10, so that the thread friction force between the locking ring 10 and the positioning ring 9 is improved, and further, the anti-loosening effect is achieved.

As shown in fig. 2, the inner end of the positioning ring 9 is provided with a first inner hexagonal groove 17, and the outer end of the locking ring 10 is provided with a second inner hexagonal groove 18. During installation, two hexagonal wrenches can be inserted into the first inner hexagonal groove 17 of the positioning ring 9 and the second inner hexagonal groove 18 of the locking ring 10 respectively, and the two wrenches are reversely rotated, so that the locking or the separation of the two wrenches is realized, and the disassembly and the assembly operations are easier.

Wherein the inner diameter of the positioning ring 9 is the same as the inner diameter of the locking ring 10. The design can avoid the step generated in the process of matching the two, and can reduce the resistance and noise when the fluid passes through.

As shown in fig. 2, the through-flow channel 7 is provided with stepped grooves 19 from inside to outside, and tapered guide surfaces 20 are provided between every two stepped grooves 19. The stepped groove 19 cooperates with the retainer ring 9 to enable the diameter adaptation range of the compression spring 5 to be increased.

As shown in fig. 2, a first guiding flaring 21 is arranged at the inner end of the through-flow channel 7, and a second guiding flaring 22 is arranged at the outer end of the positioning groove 12. This design facilitates quick insertion of the ends of the compression spring 5 into the flow channel 7 and into the positioning groove 12.

As shown in fig. 2, the spring seat 6 is in threaded connection with the outlet end of the valve sleeve 3, that is, the outer periphery of the spring seat 6 is provided with external threads, the inner periphery of the outlet end of the valve sleeve 3 is provided with internal threads matched with the external threads, the outer end of the spring seat 6 is provided with a limiting convex edge 23 extending towards the outer periphery, and the limiting convex edge 23 abuts against the outer end of the valve sleeve 3. The spring seat 6 has simple and reliable connection structure and convenient disassembly and assembly.

Claims

1. The utility model provides a proportion adjusting solenoid valve, includes electromagnetic core assembly (1), disk seat (2), valve pocket (3), case (4), compression spring (5) and spring holder (6), disk seat (2) are installed in the one end of electromagnetic core assembly (1), valve pocket (3) set up in disk seat (2) one side, case (4) set up in valve pocket (3), spring holder (6) set up at valve pocket (3) exit end, and spring holder (6) are provided with overflow channel (7) along the axial, compression spring (5) clamp is established between spring holder (6) and case (4); the method is characterized in that: still including spring positioning assembly (8), spring positioning assembly (8) include retainer plate (9) and lock ring (10), be equipped with limit flange (11) of inwards circumference extension on the inner wall of crossing flow channel (7), retainer plate (9) and lock ring (10) screw-thread fit, limit flange (11) clamp are established between retainer plate (9) and lock ring (10), and retainer plate (9) set up in one side that limit flange (11) is close to compression spring (5), the appearance of retainer plate (9) is interior little outside big toper shape, the one end cover that compression spring (5) kept away from case (4) is established on retainer plate (9), and be provided with on case (4) and be used for supplying constant head tank (12) of compression spring (5) tip embedding.

2. A proportional solenoid valve according to claim 1, wherein: the outer end of the positioning ring (9) is provided with a thread groove (13), the periphery of the locking ring (10) is provided with a thread section (14) matched with the thread groove (13), and the locking ring (10) is provided with a compression flange (15) which extends towards the periphery and is used for propping against the outer end of the limit flange (11).

3. A proportional solenoid valve according to claim 2, wherein: an elastic washer (16) is sleeved on the periphery of the locking ring (10), and the elastic washer (16) is clamped between the pressing flange (15) and the limiting flange (11).

4. A proportional solenoid valve according to claim 2, wherein: the inner end of the positioning ring (9) is provided with a first inner hexagonal groove (17), and the outer end of the locking ring (10) is provided with a second inner hexagonal groove (18).

5. A proportional solenoid valve according to claim 2, wherein: the inner diameter of the positioning ring (9) is the same as the inner diameter of the locking ring (10).

6. A proportional solenoid valve according to claim 1, wherein: the through-flow channel (7) is externally provided with stepped grooves (19) from inside to outside, and tapered guide surfaces (20) are arranged between every two stepped grooves (19).

7. A proportional solenoid valve according to claim 1, wherein: the inner end of the flow passage (7) is provided with a first guide flaring (21), and the outer end of the positioning groove (12) is provided with a second guide flaring (22).

8. A proportional solenoid valve according to claim 1, wherein: the spring seat (6) is in threaded connection with the outlet end of the valve sleeve (3), a limiting convex edge (23) extending towards the periphery is arranged at the outer end of the spring seat (6), and the limiting convex edge (23) abuts against the outer end of the valve sleeve (3).