CN213511444U

CN213511444U - Leakage-proof precision hydraulic valve core

Info

Publication number: CN213511444U
Application number: CN202022320363.7U
Authority: CN
Inventors: 邹建文
Original assignee: Jiangsu Yinghua Precision Machinery Technology Co ltd
Current assignee: Jiangsu Yinghua Precision Machinery Technology Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-06-22
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses an accurate hydrovalve case of preventing revealing relates to hydrovalve technical field. The utility model discloses a case main part, case main part are fixed in the inside of valve body and disk seat, and the inner wall of valve body and disk seat is fixed with first sealing rod cover and second sealing rod cover respectively, are fixed with the bolt on the valve body, and the bolt passes disk seat and valve body fixed connection in proper order, is equipped with first seal ring and second seal ring from inside to outside in proper order between valve body and the disk seat. The valve body and the valve seat can be separated by rotating the bolt, then the first sealing rod sleeve and the valve body can be separated by rotating the first sealing rod sleeve, then the second sealing rod sleeve and the valve seat can be separated by rotating the second sealing rod sleeve, then the sealing plug and the round rod can be separated by rotating the sealing plug, and finally the first sealing rod sleeve and the second sealing rod sleeve are moved until the first sealing rod sleeve and the second sealing rod sleeve are completely separated from the round rod, so that the valve core can be replaced conveniently, and then the medium can be prevented from leaking through double-layer sealing of the first sealing washer and the second sealing washer.

Description

Leakage-proof precision hydraulic valve core

Technical Field

The utility model relates to a hydrovalve technical field specifically is an prevent revealing accurate hydrovalve case.

Background

The hydraulic valve is an automatic element operated by pressure oil, is controlled by the pressure oil of a distribution valve, is usually combined with an electromagnetic distribution valve for use, and can be used for remotely controlling the connection and disconnection of oil, gas and water pipeline systems of hydropower stations. It is commonly used for oil circuits of clamping, controlling, lubricating and the like. The direct-acting type and the pilot type are divided into a multi-purpose pilot type. In general, a hydraulic valve has a spool inside, and the spool is a valve part for realizing basic functions of direction control, pressure control or flow control by means of movement of the valve body.

At present, the valve core of the existing precise hydraulic valve can not be detached, time and labor are consumed during replacement and maintenance, the sealing performance is poor, leakage is easy, limitation is large, and the requirement in actual use can not be met, so that the technology capable of being improved is urgently needed in the market to solve the problems.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For the technical problem who exists among the solution background art, the utility model provides a prevent revealing precision hydraulic valve case has the characteristics that can dismantle and prevent leaking.

(II) technical scheme

For solving the technical problem, the utility model provides a prevent revealing precision hydraulic valve case, including the case main part, the case main part includes the round bar, and the upper and lower end of round bar is fixed with piston and sealing plug respectively, the outer wall of round bar is provided with the second external screw thread, and the round bar passes through second external screw thread and sealing plug fixed connection, the inside at valve body and disk seat is fixed to the case main part, the inner wall of valve body and disk seat is fixed with first sealing rod cover and second sealing rod cover respectively, be fixed with the bolt on the valve body, and the bolt passes disk seat and valve body fixed connection in proper order, be equipped with first seal ring and second seal ring from inside to outside in proper order between valve body and the disk seat.

Furthermore, an oil cavity is arranged inside the valve seat, and an oil pipe is fixed at the right end of the valve seat.

Furthermore, the outer wall of the first sealing rod sleeve is provided with a first external thread, and the first sealing rod sleeve is rotatably connected with the valve body through the first external thread.

Furthermore, baffles are fixed at symmetrical positions of the upper end of the first sealing rod sleeve, a first round hole is formed in the middle of the first sealing rod sleeve, and a first rubber pad is fixed on the inner wall of the first round hole.

Furthermore, the outer wall of the second sealing rod sleeve is provided with a third external thread, and the second sealing rod sleeve is rotatably connected with the valve seat through the third external thread.

Furthermore, a second round hole is formed in the middle of the second sealing rod sleeve, and a second rubber pad is fixed on the inner wall of the second round hole.

The above technical scheme of the utility model has following profitable technological effect: the utility model discloses a first sealing rod cover, second sealing rod cover and the bolt that set up make the case can dismantle, when dismantling, through rotatory separable valve body of bolt and disk seat, then through rotatory separable first sealing rod cover of first sealing rod cover and valve body, rethread separable second sealing rod cover of second sealing rod cover and disk seat, later through separable sealing plug of rotatory sealing plug and round bar, last first sealing rod cover and second sealing rod cover remove to break away from the round bar completely can, be convenient for change the case, then the utility model discloses a first sealing rod cover, second sealing rod cover, first seal ring and the second seal ring that set up, can prevent through the first rubber pad on the first sealing rod cover that the medium from getting into the disk seat, and can further prevent through the second rubber pad on the second sealing rod cover that the medium from getting into the disk seat, then the double-deck sealed effect through first seal ring and second seal ring is better, the effect of preventing leakage is achieved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a first seal rod sleeve of the present invention;

fig. 3 is a schematic structural view of the valve core main body of the present invention;

fig. 4 is a schematic structural view of a second seal rod sleeve of the present invention;

fig. 5 is an enlarged view of a structure in fig. 1 according to the present invention.

Reference numerals:

1. a valve body; 2. a first seal rod sleeve; 201. a first external thread; 202. a first circular hole; 203. a first rubber pad; 204. a baffle plate; 3. a valve seat; 4. an oil chamber; 5. an oil pipe; 6. a valve core main body; 601. a round bar; 602. a piston; 603. a sealing plug; 604. a second external thread; 7. a second seal rod sleeve; 701. a third external thread; 702. a second circular hole; 703. a second rubber pad; 8. a first sealing gasket; 9. a second sealing gasket; 10. and (4) bolts.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1, 3 and 5, the present invention relates to a leakage-proof precision hydraulic valve core, which comprises a core body 6, wherein the core body 6 comprises a round rod 601, the upper and lower ends of the round rod 601 are respectively fixed with a piston 602 and a sealing plug 603, the piston 602 facilitates oil pressure, the sealing plug 603 facilitates opening and closing of a valve, the outer wall of the round rod 601 is provided with a second external thread 604, the round rod 601 is fixedly connected with the sealing plug 603 through the second external thread 604, the sealing plug 603 can be fixed on the round rod 601 through the second external thread 604, the sealing plug 603 and the round rod 601 are convenient to install and disassemble, the core body 6 is fixed inside the valve body 1 and the valve seat 3, the inner walls of the valve body 1 and the valve seat 3 are respectively fixed with a first sealing rod sleeve 2 and a second sealing rod sleeve 7, a bolt 10 is fixed on the valve body 1, and the bolt 10 sequentially passes through the valve seat 3 and is fixedly connected with the valve, be equipped with first seal ring 8 and second seal ring 9 from inside to outside in proper order between valve body 1 and the disk seat 3, first seal ring 8 and second seal ring 9 can both play sealed effect, and the double-deck sealed effect is better.

As shown in FIG. 1, an oil chamber 4 is arranged inside the valve seat 3, the oil chamber 4 is convenient for injecting hydraulic oil, and an oil pipe 5 is fixed at the right end of the valve seat 3.

Wherein as shown in fig. 1 and 3, the outer wall of the first seal rod sleeve 2 is provided with a first external thread 201, the first seal rod sleeve 2 is rotatably connected with the valve body 1 through the first external thread 201, the first seal rod sleeve 2 can be fixed on the valve body 1 through the first external thread 201, the first seal rod sleeve 2 is convenient to mount and dismount, a baffle 204 is fixed at the upper end symmetrical position of the first seal rod sleeve 2, the baffle 204 facilitates the rotation of the first seal rod sleeve 2, a first round hole 202 is formed in the middle position of the first seal rod sleeve 2, a first rubber pad 203 is fixed on the inner wall of the first round hole 202, and a sealing effect is achieved through the first rubber pad 203.

As shown in fig. 1 and 4, the outer wall of the second seal rod sleeve 7 is provided with a third external thread 701, the second seal rod sleeve 7 is rotatably connected with the valve seat 3 through the third external thread 701, the second seal rod sleeve 7 can be fixed on the valve seat 3 through the third external thread 701, the second seal rod sleeve 7 is convenient to mount and dismount, a second round hole 702 is formed in the middle of the second seal rod sleeve 7, a second rubber pad 703 is fixed on the inner wall of the second round hole 702, and a sealing effect is achieved through the second rubber pad 703.

The working principle is as follows: when in use, the first rubber gasket 203 in the first sealing rod sleeve 2 can prevent a medium from entering the valve seat 3, the second rubber gasket 703 in the second sealing rod sleeve 7 can further prevent the medium from entering the valve seat 3, then the first sealing washer 8 can prevent the medium from leaking, and the second sealing washer 9 can further prevent the medium from leaking, when in disassembly, the bolt 10 is rotated upwards until the bolt 10 is completely separated from the valve seat 3, so that the valve body 1 and the bolt 10 can be separated, then the first sealing rod sleeve 2 is rotated upwards until the first sealing rod sleeve 2 is completely separated from the valve body 1, so that the valve body 1 and the first sealing rod sleeve 2 can be separated, then the sealing plug 603 is rotated downwards until the sealing plug 603 is completely separated from the round rod 601, so that the sealing plug 603 and the round rod 601 can be separated, then the second sealing rod sleeve 7 is rotated downwards until the second sealing rod sleeve 7 is completely separated from the valve seat 3, so that the second sealing rod sleeve 7 and the valve seat 3 can be separated, and finally, the first sealing rod sleeve 2 and the second sealing rod sleeve 7 are moved downwards, so that the first sealing rod sleeve 2, the round rod 601 and the second sealing rod sleeve 7 can be separated, and the valve core is convenient to replace.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides an anti-leakage precision hydraulic valve case, includes case main part (6), its characterized in that: the valve core main part (6) includes round bar (601), and the upper and lower end of round bar (601) is fixed with piston (602) and sealing plug (603) respectively, the outer wall of round bar (601) is provided with second external screw thread (604), and round bar (601) are through second external screw thread (604) and sealing plug (603) fixed connection, the inside at valve body (1) and disk seat (3) is fixed in valve core main part (6), the inner wall of valve body (1) and disk seat (3) is fixed with first sealing rod cover (2) and second sealing rod cover (7) respectively, be fixed with bolt (10) on valve body (1), and bolt (10) pass disk seat (3) and valve body (1) fixed connection in proper order, be equipped with first seal ring (8) and second seal ring (9) from inside to outside in proper order between valve body (1) and disk seat (3).

2. The valve core of the anti-leakage precision hydraulic valve according to claim 1, wherein an oil cavity (4) is arranged inside the valve seat (3), and an oil pipe (5) is fixed at the right end of the valve seat (3).

3. The valve core of the anti-leakage precision hydraulic valve according to claim 1, wherein the outer wall of the first sealing rod sleeve (2) is provided with a first external thread (201), and the first sealing rod sleeve (2) is rotatably connected with the valve body (1) through the first external thread (201).

4. The valve core of the anti-leakage precision hydraulic valve according to claim 1, wherein a baffle plate (204) is fixed at the upper end of the first sealing rod sleeve (2) at a symmetrical position, a first round hole (202) is formed in the middle of the first sealing rod sleeve (2), and a first rubber pad (203) is fixed on the inner wall of the first round hole (202).

5. The valve core of the anti-leakage precision hydraulic valve according to claim 1, wherein the outer wall of the second sealing rod sleeve (7) is provided with a third external thread (701), and the second sealing rod sleeve (7) is rotatably connected with the valve seat (3) through the third external thread (701).

6. The valve core of the anti-leakage precision hydraulic valve according to claim 1, wherein a second round hole (702) is formed in the middle position of the second sealing rod sleeve (7), and a second rubber pad (703) is fixed on the inner wall of the second round hole (702).