CN211449247U

CN211449247U - Thread cartridge reversing valve for oil way reversing

Info

Publication number: CN211449247U
Application number: CN201922148632.3U
Authority: CN
Inventors: 王波
Original assignee: Ningbo Hankos Hydraulic Co ltd
Current assignee: Ningbo Hankos Hydraulic Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-09-08
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a screw-thread cartridge reversing valve for oil-way reversing, which comprises a valve sleeve, a valve core, a movable iron core, a spring, a fixed sleeve, a sleeve and a magnetic conductive sleeve; the valve sleeve is provided with valve sleeve output holes which are communicated with each other; the top end of the valve core is designed into a T-shaped structure; the bottom end of the valve core is provided with a valve core input hole and a valve core output hole which are mutually communicated; the top end of the movable iron core is provided with a spring sleeve hole, and the bottom end of the movable iron core is also provided with a T-shaped clamping hole; the valve core is sleeved in the valve core mounting hole; the fixed sleeve is matched, sleeved and fixed at the top end of the valve sleeve; the T-shaped clamping hole is matched, clamped and fixed on the T-shaped structure; the sleeve is sleeved on the movable iron core in a matching manner, and the bottom end of the sleeve is sleeved and fixed in a sleeve hole of the fixed sleeve in a matching manner; the spring is matched and arranged in a spring sleeving hole of the movable iron core; the magnetic sleeve is matched and sleeved and fixed at the top end of the sleeve hole of the sleeve. The utility model discloses an electromagnetism break-make controls the break-make of two pairs of case delivery outlets and valve barrel delivery outlet, and simple structure is practical again.

Description

Thread cartridge reversing valve for oil way reversing

Technical Field

The utility model belongs to the technical field of the valve, especially, relate to a screw-thread cartridge switching-over valve for oil circuit switching-over.

Background

Valves (Valve) are mechanical devices that control the flow, direction, pressure, temperature, etc. of a flowing fluid medium, and are essential components in piping systems. Among them, the Electromagnetic valve (Electromagnetic valve) is a kind of valve, it is the industrial equipment that uses the electromagnetism to control, is the automation basic element who is used for controlling fluid, belongs to the executor, and is not limited to hydraulic pressure, pneumatics. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured. There are many types of solenoid valves, with different solenoid valves functioning at different locations in the control system, the most common being one-way valves, safety valves, directional control valves, speed control valves, etc. However, the solenoid valve generally belongs to an element which is easy to wear and is more frequently replaced than other matched components, so that the connection structure needs to be simple and practical; in addition, in the oil path, the oil may be blocked due to the viscosity of the oil, and the oil needs to be frequently disassembled and cleaned.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide an oil circuit solenoid directional valve who realizes the cartridge through threaded connection.

(II) technical scheme

In order to solve the technical problem, the utility model provides a screw-in cartridge reversing valve for oil circuit reversing, which comprises a valve sleeve, a valve core, a movable iron core, a spring, a fixed sleeve, a sleeve and a magnetic sleeve; the bottom end of the valve sleeve is provided with a valve core mounting hole which is coaxially communicated with the valve sleeve and is matched with the valve core, and the outer side of the valve sleeve is provided with two groups of valve sleeve output holes which are distributed at intervals up and down and are communicated with the valve core mounting hole; the outer side of the valve core is provided with a limiting step with the outer diameter larger than the aperture of the valve core mounting hole, and the top end of the valve core is arranged into a T-shaped structure coaxial with the valve core; the bottom end of the valve core is provided with a valve core input hole coaxial with the valve core; two groups of valve core output holes which are distributed at intervals up and down and run through the valve core input holes are also formed in the outer side of the valve core, and the distance between the outer sides of the two groups of valve core output holes is smaller than the distance between the inner sides of the two groups of valve sleeve output holes; the top end of the movable iron core is provided with a spring sleeving hole which is coaxial with the movable iron core and matched with the spring, and the bottom end of the movable iron core is also provided with a T-shaped clamping hole which is coaxial with the movable iron core and matched with the T-shaped structure;

the valve core is inserted into the limiting step from the top end of the valve core mounting hole to be in matched contact with the top surface of the valve sleeve; the fixed sleeve is matched, sleeved and fixed at the top end of the valve sleeve; the bottom end of the movable iron core is matched, clamped and fixed on the T-shaped structure through the T-shaped clamping hole to realize the fixed connection of the top ends of the rest valve cores; the sleeve is sleeved on the movable iron core in a matching way, and the bottom end of the sleeve is sleeved and fixed in a sleeve hole of the fixed sleeve in a matching way; the spring is matched and arranged in a spring sleeving hole of the movable iron core; the bottom end of the magnetic conduction sleeve is matched, sleeved and fixed at the top end of the sleeve hole of the sleeve; two ends of the spring act between the magnetic conduction sleeve and the movable iron core;

when the magnetic conduction sleeve is electrified, the movable iron core is adsorbed by the magnetic conduction sleeve and overcomes the acting force of the spring to move upwards and drive the valve core to move upwards, the valve core output holes distributed on the upper group of the movable iron core are matched and butted with the valve sleeve output holes distributed on the upper group of the valve sleeve, and the valve core output holes distributed on the lower group of the movable iron core are distributed on the valve sleeve output holes of the lower group of the valve sleeve in a staggered manner; when the magnetic conduction sleeve is powered off, the movable iron core loses adsorption force and pushes the movable iron core downwards under the action of the reset force of the spring, the valve core is driven to move downwards, the valve core output holes distributed on the movable iron core upper group are distributed on the valve sleeve output holes of the valve sleeve upper group in a staggered mode, and the valve core output holes distributed on the movable iron core lower group are matched and butted with the valve sleeve output holes distributed on the valve sleeve lower group.

The thread cartridge reversing valve for reversing the oil path also comprises a locking nut; the outer side of the top end of the magnetic sleeve is provided with a locking thread matched with the locking nut; the locking nut is in threaded connection with the locking thread.

The outer side of the top end of the valve sleeve is provided with a connecting thread, and the bottom end of a sleeve hole of the fixed sleeve is provided with a threaded hole matched with the connecting thread; the sleeve and the fixed sleeve are fixedly connected through the threaded connection between the connecting threads and the threaded hole.

Wherein, the top of the valve core is provided with a through hole which is coaxial with the valve core and penetrates through the valve core input hole, and the middle of the movable iron core is also provided with a communicating hole which simultaneously penetrates through the spring sleeve joint hole and the T-shaped clamping hole.

The outer side of the valve core is also provided with a group of diversion holes which are far away from the valve sleeve output hole and communicated with the through hole, the outer side of the valve core is also provided with a first diversion groove, the first diversion groove is arranged to the limiting step, and the first diversion groove is arranged to the communicated diversion holes.

The outer side of the valve core is also provided with a second diversion trench, the second diversion trench is arranged above the valve sleeve output holes distributed on the valve sleeve upper group in a communicating manner, and the second diversion trench is arranged below the valve sleeve output holes distributed on the valve sleeve lower group; the groove width of the second diversion groove is smaller than the inner side distance of the two groups of valve sleeve output holes.

The outer side of the valve sleeve is also provided with a first sealing groove and a second sealing groove; the first sealing groove is distributed between the two groups of valve sleeve output holes, and a first O-shaped ring and a first check ring are arranged in the first sealing groove in a matched manner; the second sealing groove is distributed below the output holes of the lower valve sleeves, and a second O-shaped ring and a second check ring are arranged in the second sealing groove in a matched mode.

Wherein, the bottom outside of fixed cover still is provided with fixed screw thread.

The tail end of the fixed thread is also provided with a third sealing groove, and a third O-shaped ring is arranged in the third sealing groove in a matching mode.

(III) advantageous effects

Compared with the prior art, the utility model controls the on-off switching of the two pairs of valve core output holes and the valve sleeve output holes through the electromagnetic on-off, thereby realizing the reversing of the oil circuit, and having simple and practical structure; wherein, this product passes through threaded connection fixed, and the dismouting is changed very conveniently.

Drawings

Fig. 1 is a schematic structural diagram of the thread cartridge reversing valve for oil path reversing of the present invention.

Description of reference numerals: 1. a valve housing; 2. a valve core; 3. a movable iron core; 4. a spring; 5. fixing a sleeve; 6. A sleeve; 7. a flux sleeve; 8. locking the nut; 11. a valve core mounting hole; 12. A valve housing output aperture; 13. connecting threads; 14. a first seal groove; 15. a second seal groove; 21. a limiting step; 22. a T-shaped structure; 23. a spool input aperture; 24. a spool output port; 25. a through hole; 26. a flow guide hole; 27. a first diversion trench; 28. a second guiding gutter; 31. a spring sleeve hole; 32. a T-shaped clamping hole; 33. a communicating hole; 51. a threaded hole; 52. fixing threads; 53. a third seal groove; 71. locking the threads; 141. a first O-ring; 142. a first retainer ring; 151. a second O-ring; 152. a second retainer ring; 531. and a third O-ring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The structure of the thread cartridge reversing valve for oil circuit reversing of the utility model is shown in figure 1, and the thread cartridge reversing valve for oil circuit reversing comprises a valve sleeve 1, a valve core 2, a movable iron core 3, a spring 4, a fixed sleeve 5, a sleeve 6 and a magnetic sleeve 7; the bottom end of the valve sleeve 1 is provided with a valve core mounting hole 11 which is coaxially communicated with the valve sleeve and is matched with the valve core 2, and the outer side of the valve sleeve 1 is provided with two groups of valve sleeve output holes 12 which are distributed at intervals up and down and are communicated with the valve core mounting hole 11; the outer side of the valve core 2 is provided with a limit step 21 with the outer diameter larger than the aperture of the valve core mounting hole 11, and the top end of the valve core 2 is provided with a T-shaped structure 22 coaxial with the valve core; the bottom end of the valve core 2 is provided with a valve core input hole 23 which is coaxial with the valve core 2; two groups of valve core output holes 24 which are distributed at intervals up and down and penetrate through the valve core input holes 23 are also formed in the outer side of the valve core 2, and the distance between the outer sides of the two groups of valve core output holes 24 is smaller than the distance between the inner sides of the two groups of valve sleeve output holes 12; the top end of the movable iron core 3 is provided with a spring sleeving hole 31 which is coaxial with the movable iron core and matched with the spring 4, and the bottom end of the movable iron core 3 is also provided with a T-shaped clamping hole 32 which is coaxial with the movable iron core and matched with the T-shaped structure 22;

the valve core 2 is inserted into the limiting step 21 from the top end of the valve core mounting hole 11 to be in matched contact with the top surface of the valve sleeve 1; the fixed sleeve 5 is matched, sleeved and fixed at the top end of the valve sleeve 1; the bottom end of the movable iron core 3 is matched, clamped and fixed on the T-shaped structure 22 through the T-shaped clamping hole 32 to realize the fixed connection of the top ends of the rest valve cores 2; the sleeve 6 is sleeved on the movable iron core 3 in a matching way, and the bottom end of the sleeve is sleeved and fixed in a sleeve hole of the fixed sleeve 5 in a matching way; the spring 4 is arranged in the spring sleeving hole 31 of the movable iron core 3 in a matching way; the bottom end of the magnetic conduction sleeve 7 is matched, sleeved and fixed at the top end of the trepanning of the sleeve 6; two ends of the spring 4 act between the magnetic sleeve 7 and the movable iron core 3;

when the magnetic conduction sleeve 7 is electrified, the movable iron core 3 is adsorbed by the magnetic conduction sleeve 7 and overcomes the acting force of the spring 4 to move upwards and drive the valve core 2 to move upwards, the valve core output holes 24 distributed on the upper group of the movable iron core 2 are matched and butted with the valve sleeve output holes 12 distributed on the upper group of the valve sleeve 1, and the valve core output holes 24 distributed on the lower group of the movable iron core 2 are staggered and distributed on the valve sleeve output holes 12 of the lower group of the valve sleeve 1; when the magnetic conduction sleeve 7 is powered off, the movable iron core 3 loses the adsorption force and pushes the movable iron core 3 downwards under the action of the reset force of the spring 4, the valve core 2 is driven to move downwards, the valve core output holes 24 distributed on the movable iron core 2 are distributed on the valve sleeve output holes 12 of the upper valve sleeve 1 in a staggered mode, and the valve core output holes 24 distributed on the lower valve core 2 are matched and butted on the valve sleeve output holes 12 of the lower valve sleeve 1.

The electromagnetic valve controls the on-off switching of the two pairs of valve core output holes and the valve sleeve output holes through electromagnetic on-off, so that the oil circuit is reversed, and the electromagnetic valve is simple and practical in structure.

As shown in fig. 1, in the present embodiment, the threaded cartridge type directional control valve for oil path direction change further includes a lock nut 8; the outer side of the top end of the magnetic sleeve 7 is provided with a locking thread 71 matched with the locking nut 8; the lock nut 8 is screwed at the lock thread 71. The utility model adopts the above structure, further fix locking to this product, improve firm in connection degree.

As shown in fig. 1, in this embodiment, the outer side of the top end of the valve sleeve 1 is provided with a connecting thread 13, and the bottom end of the sleeve hole of the fixed sleeve 5 is provided with a threaded hole 51 matched with the connecting thread 13; the fixed connection between the sleeve 1 and the fixed sleeve 5 is achieved by a threaded connection between the connecting thread 13 and the threaded hole 51. The connection between the valve sleeve 1 and the fixed sleeve 5 is simple and convenient; wherein, a sealing structure can be arranged at the joint between the valve sleeve 1 and the fixed sleeve 5, so as to improve the sealing performance.

As shown in fig. 1, in the present embodiment, the top end of the valve core 2 is provided with a through hole 25 which is coaxial with the top end and passes through the valve core input hole 23, and the middle of the movable iron core 3 is provided with a communication hole 33 which passes through both the spring sleeve hole 31 and the t-shaped clamping hole 32. The utility model adopts the above structure, can effectively stabilize the pressure of moving the inside cavity of iron core 3 in the removal, guarantee its smooth and easy that removes.

As shown in fig. 1, in this embodiment, a set of guiding holes 26 far away from the valve sleeve output hole 12 and communicating with the through hole 25 are further formed on the outer side of the valve core 2, a first guiding groove 27 is further formed on the outer side of the valve core 2, the first guiding groove 27 is up to the limiting step 21, and the first guiding groove 27 is down to the communicating guiding holes 26. The utility model adopts the above structure, can further stabilize the pressure balance of the inside cavity of product.

As shown in fig. 1, in this embodiment, a second diversion trench 28 is further disposed on the outer side of the valve core 2, the second diversion trench 28 is up to the valve sleeve output holes 12 distributed in the upper group of the valve sleeve 1, and the second diversion trench 28 is down to the valve sleeve output holes 12 distributed in the lower group of the valve sleeve 1; the width of the second guide grooves 28 is smaller than the inner spacing of the two sets of valve housing output holes 12. The utility model adopts the above structure, even the circulation also can be stabilized when mated valve barrel output hole 12 and case output hole 24 are not just to last.

As shown in fig. 1, in this embodiment, a first sealing groove 14 and a second sealing groove 15 are further disposed on the outer side of the valve housing 1; the first sealing groove 14 is distributed between the two groups of valve sleeve output holes 12, and a first O-ring 141 and a first retaining ring 142 are arranged in the first sealing groove 14 in a matching manner; the second sealing groove 15 is distributed below the output hole 12 of the valve sleeve in the lower group, and a second O-ring 151 and a second stop ring 152 are arranged in the second sealing groove 14 in a matching manner. The utility model adopts the above structure, effectively improve sealing performance, effectively separate two sets of valve barrel delivery outlets 12, avoid the interpenetration intercommunication between the two.

As shown in fig. 1, in this embodiment, the outer side of the bottom end of the fixing sleeve 5 is further provided with a fixing thread 52 for fixedly connecting the product, so that the product is very convenient to disassemble, assemble and replace. Wherein, the fixing thread 52 can be replaced by a clamping structure.

As shown in fig. 1, in this embodiment, a third sealing groove 53 is further disposed at the end of the fixing thread 52, and a third O-ring 531 is disposed in the third sealing groove 53 in a matching manner, so that the sealing performance of the product after assembling other components is effectively improved.

As shown in fig. 1, in this embodiment, the top end of the movable iron core 3 may be provided with a tapered table, and the bottom end of the corresponding flux sleeve 7 is also provided with a tapered recess matching with the tapered table.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a screw-in cartridge switching-over valve for oil circuit switching-over which characterized in that: the thread cartridge reversing valve for oil path reversing comprises a valve sleeve (1), a valve core (2), a movable iron core (3), a spring (4), a fixed sleeve (5), a sleeve (6) and a magnetic conductive sleeve (7); the bottom end of the valve sleeve (1) is provided with a valve core mounting hole (11) which is coaxially communicated with the valve sleeve and is matched with the valve core (2), and the outer side of the valve sleeve (1) is provided with two groups of valve sleeve output holes (12) which are distributed at intervals up and down and are communicated with the valve core mounting hole (11); a limiting step (21) with the outer diameter larger than the aperture of the valve core mounting hole (11) is arranged on the outer side of the valve core (2), and the top end of the valve core (2) is provided with a T-shaped structure (22) coaxial with the valve core; the bottom end of the valve core (2) is provided with a valve core input hole (23) which is coaxial with the valve core; two groups of valve core output holes (24) which are distributed at intervals up and down and penetrate through the valve core input hole (23) are also formed in the outer side of the valve core (2), and the distance between the outer sides of the two groups of valve core output holes (24) is smaller than the distance between the inner sides of the two groups of valve sleeve output holes (12); the top end of the movable iron core (3) is provided with a spring sleeve hole (31) which is coaxial with the movable iron core and matched with the spring (4), and the bottom end of the movable iron core (3) is also provided with a T-shaped clamping hole (32) which is coaxial with the movable iron core and matched with the T-shaped structure (22);

the valve core (2) is inserted into the limiting step (21) from the top end of the valve core mounting hole (11) to be in matched contact with the top surface of the valve sleeve (1); the fixed sleeve (5) is matched, sleeved and fixed at the top end of the valve sleeve (1); the bottom end of the movable iron core (3) is matched, clamped and fixed on the T-shaped structure (22) through the T-shaped clamping hole (32) to realize the fixed connection of the top ends of the rest valve cores (2); the sleeve (6) is sleeved on the movable iron core (3) in a matching manner, and the bottom end of the sleeve is sleeved and fixed in a sleeve hole of the fixed sleeve (5) in a matching manner; the spring (4) is installed in a spring sleeve hole (31) of the movable iron core (3) in a matching mode; the bottom end of the magnetic conduction sleeve (7) is matched, sleeved and fixed at the top end of the sleeve hole of the sleeve (6); two ends of the spring (4) act between the magnetic sleeve (7) and the movable iron core (3);

when the magnetic sleeve (7) is electrified, the movable iron core (3) is adsorbed by the magnetic sleeve (7) and overcomes the acting force of the spring (4) to move upwards and drive the valve core (2) to move upwards, the valve core output holes (24) distributed on the upper group of the movable iron core (3) are matched and butted with the valve sleeve output holes (12) distributed on the upper group of the valve sleeve (1), and the valve core output holes (24) distributed on the lower group of the movable iron core (3) are distributed on the valve sleeve output holes (12) of the lower group of the valve sleeve (1) in a staggered manner; after the magnetic conduction sleeve (7) is powered off, the movable iron core (3) loses adsorption force and pushes the movable iron core (3) downwards under the action of the reset force of the spring (4), and simultaneously drives the valve core (2) to move downwards, the valve core output holes (24) distributed on the movable iron core (3) are distributed on the valve sleeve output holes (12) distributed on the valve sleeve (1) in a staggered manner, and the valve core output holes (24) distributed on the movable iron core (3) are matched and butted on the valve sleeve output holes (12) distributed on the valve sleeve (1) in a lower group.

2. The threaded cartridge reversing valve for oil circuit reversing according to claim 1, characterized in that: the thread cartridge reversing valve for oil path reversing also comprises a locking nut (8); a locking thread (71) matched with the locking nut (8) is arranged on the outer side of the top end of the magnetic sleeve (7); the locking nut (8) is in threaded connection with the locking thread (71).

3. The threaded cartridge reversing valve for oil circuit reversing according to claim 1, characterized in that: the outer side of the top end of the valve sleeve (1) is provided with a connecting thread (13), and the bottom end of a sleeve hole of the fixed sleeve (5) is provided with a threaded hole (51) matched with the connecting thread (13); the sleeve (6) and the fixed sleeve (5) are fixedly connected through the threaded connection between the connecting thread (13) and the threaded hole (51).

4. The threaded cartridge reversing valve for oil circuit reversing according to claim 1, characterized in that: the top end of the valve core (2) is provided with a through hole (25) which is coaxial with the valve core and penetrates through the valve core input hole (23), and the middle of the movable iron core (3) is also provided with a communicating hole (33) which simultaneously penetrates through the spring sleeve joint hole (31) and the T-shaped clamping hole (32).

5. The threaded cartridge reversing valve for oil circuit reversing according to claim 4, characterized in that: the outer side of the valve core (2) is further provided with a group of diversion holes (26) which are far away from the valve sleeve output hole (12) and communicated with the through hole (25), the outer side of the valve core (2) is further provided with a first diversion groove (27), the first diversion groove (27) is arranged to the limiting step (21), and the first diversion groove (27) is arranged to the communicated diversion holes (26).

6. The threaded cartridge reversing valve for oil circuit reversing according to claim 1, characterized in that: a second diversion trench (28) is further formed in the outer side of the valve core (2), the second diversion trench (28) is arranged above the valve sleeve output holes (12) distributed in the upper group of the valve sleeve (1) in a communicating mode, and the second diversion trench (28) is arranged below the valve sleeve output holes (12) distributed in the lower group of the valve sleeve (1); the width of the second diversion groove (28) is smaller than the inner side distance of the two groups of valve sleeve output holes (12).

7. The threaded cartridge reversing valve for oil circuit reversing according to claim 1, characterized in that: a first sealing groove (14) and a second sealing groove (15) are further formed in the outer side of the valve sleeve (1); the first sealing groove (14) is distributed between the two groups of valve sleeve output holes (12), and a first O-shaped ring (141) and a first check ring (142) are arranged in the first sealing groove (14) in a matching manner; the second sealing groove (15) is distributed below the lower valve sleeve output hole (12), and a second O-shaped ring (151) and a second retaining ring (152) are arranged in the second sealing groove (15) in a matched mode.

8. The threaded cartridge reversing valve for oil circuit reversing according to claim 1, characterized in that: the outer side of the bottom end of the fixed sleeve (5) is also provided with a fixed thread (52).

9. The threaded cartridge reversing valve for oil circuit reversing according to claim 8, characterized in that: the tail end of the fixed thread (52) is further provided with a third sealing groove (53), and a third O-shaped ring (531) is arranged in the third sealing groove (53) in a matched mode.