CN210484230U - Manual control one-way valve - Google Patents
Manual control one-way valve Download PDFInfo
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- CN210484230U CN210484230U CN201921236789.5U CN201921236789U CN210484230U CN 210484230 U CN210484230 U CN 210484230U CN 201921236789 U CN201921236789 U CN 201921236789U CN 210484230 U CN210484230 U CN 210484230U
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- way valve
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- valve core
- valve
- end cover
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Abstract
A manual one-way valve comprises a valve body, a spring end cover and a manual end cover; a valve hole is formed in the valve body, and a push rod, a first one-way valve core, a second one-way valve core, a one-way valve seat, a spring, a plug and an oil inlet are arranged in the valve hole; the one-way valve seat is arranged on the right side of the first one-way valve core, the push rod is arranged on the right side of the second one-way valve core, and a plurality of oil inlets are formed in the lower portion of the valve body; the valve body top is equipped with the end cap, be equipped with the connecting rod in the manual end cover, the other end hinged joint of connecting rod has the dead lever, fixed mounting has manual handle on the dead lever, the utility model discloses a manual handle promotes the push rod and can promote the check valve core and remove, overcomes the effect of spring force, and the seal opening is opened this moment, and hydraulic oil circulates to realize opening of manual control check valve, can use in some occasions that do not have hydraulic control pressure or need the manual check valve of opening, need not to set up the control valve in addition and can control the two-way flow of check valve.
Description
Technical Field
The utility model belongs to the technical field of hydraulic pressure valve technique and specifically relates to a manual check valve is related to.
Background
The liquid in the general one-way valve can only flow in a single direction, the hydraulic control one-way valve can be opened under the hydraulic control to enable the liquid to flow reversely, so that the liquid can flow back in the oil way, but the hydraulic control one-way valve must be additionally provided with a special control valve in the oil way, so that the one-way valve is opened through the control valve under the action of higher hydraulic force, the control valve is additionally provided with the one-way valve, the pressure loss is increased, the efficiency of a hydraulic system is reduced, in actual use, the oil way is not convenient to adjust, and the one-way locking of the oil way cannot be ensured.
Therefore, there is a need to provide a new technical solution to overcome the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can effectively solve above-mentioned technical problem's manual check valve.
In order to achieve the purpose of the utility model, the following technical proposal is adopted:
a manual one-way valve comprises a valve body, a spring end cover and a manual end cover; the spring end cover is fixedly arranged on one side of the valve body, and the manual end cover is fixedly arranged on the other side of the valve body; a valve hole is formed in the valve body, and a push rod, a first one-way valve core, a second one-way valve core, a one-way valve seat, a spring, a plug and an oil inlet are arranged in the valve hole; the first one-way valve core is abutted against the valve hole and is in sliding contact with the inner surface of the valve body, a second one-way valve core is arranged in the first one-way valve core, the second one-way valve core penetrates through the inner surface of the first one-way valve core and is in sliding contact with the inner surface of the first one-way valve core, a spring is arranged in the second one-way valve core, one end of the spring is abutted against the second one-way valve core, and the other end of the spring is abutted against the inner surface of a spring; the check valve seat is arranged on the right side of the first check valve core, is hollow, and has an inner hole with a diameter smaller than that of the first check valve core; a plurality of push rods are arranged on the right side of the second one-way valve core, the push rods are T-shaped, the push rods are accommodated in the valve holes and abut against the inner surface of the valve body, one side of each push rod abuts against the second one-way valve core, and the oil inlets are arranged below the valve body; the valve body top is equipped with the end cap, manual end cover is hollow form, be equipped with the connecting rod in the manual end cover, the connecting rod top is leaned on manual end cover internal surface and rather than sliding contact, the one end top of connecting rod is leaned on the push rod, the other end hinged joint of connecting rod has the dead lever, fixed mounting has manual handle on the dead lever.
Preferably, the end of the manual control handle is provided with a spherical protective head.
Preferably, the surface of the spherical protection head is knurled.
Compared with the prior art, the utility model discloses following beneficial effect has: the one-way valve core can be pushed to move by pushing the push rod through the manual control handle, the action of the spring force is overcome, the sealing port is opened at the moment, hydraulic oil circulates, and therefore the opening of the one-way valve is manually controlled, the one-way valve can be used in occasions without hydraulic control pressure or occasions needing to manually open the one-way valve, and the two-way flow of the one-way valve can be controlled without additionally arranging a control valve.
Drawings
Fig. 1 is a schematic structural view of the manual check valve of the present invention.
Wherein: 1, a valve body; 2, a spring end cover; 3, manually closing the end cover; 4 connecting rods; 6, fixing the rod; 7, a manual control handle; 8, pushing a rod; 9 a first one-way valve spool; 10 a second one-way valve spool; 11 a one-way valve seat; 12 springs; 13, a plug; 14 oil inlet; 15 valve hole.
Detailed Description
The manual check valve of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a manual check valve of the present invention, which comprises a valve body 1, a spring end cover 2 and a manual end cover 3; the spring end cover 2 is fixedly arranged on one side of the valve body 1, and the manual end cover 3 is fixedly arranged on the other side of the valve body 1; a valve hole 15 is formed in the valve body 1, the valve hole 15 is irregular in shape, and a push rod 8, a first one-way valve core 9, a second one-way valve core 10, a one-way valve seat 11, a spring 12, a plug 13 and an oil inlet 14 are arranged in the valve hole 15; the first check valve core 9 is abutted against the valve hole 15 and is in sliding contact with the inner surface of the valve body 1, so that the first check valve core 9 can stably move, a second check valve core 10 is arranged in the first check valve core 9, the second check valve core 10 penetrates through the inner surface of the first check valve core 9 and is in sliding contact with the inner surface of the first check valve core 9, so that the second check valve core 10 can stably move, a spring 12 is arranged in the second check valve core 10, one end of the spring 12 is abutted against the second check valve core 10, and the other end of the spring 12 is abutted against the inner surface of a spring end cover 2; the check valve seat 11 is arranged on the right side of the first check valve core 9 and plays a role in limiting the first check valve core 9 to move rightwards, the check valve seat 11 is hollow, and the diameter of an inner hole of the check valve seat is smaller than that of the first check valve core 9; a push rod 8 is arranged on the right side of the second one-way valve core 10, the push rod 8 is T-shaped, the push rod 8 is accommodated in the valve hole 15 and abuts against the inner surface of the valve body 1, so that the push rod 8 can stably move on the inner surface of the valve body 1, and one side of the push rod 8 abuts against the second one-way valve core 10 and can push the second one-way valve core 10 to move; the oil inlets 14 are arranged in plurality and are arranged below the valve body 1; a plug 13 is arranged above the valve body 1 to prevent leakage and reduce pressure; manual end cover 3 is hollow form, be equipped with connecting rod 4 in the manual end cover 3, connecting rod 4 top is leaned on 3 internal surfaces of manual end cover and rather than sliding contact make connecting rod 4 can be stable remove about, the one end top of connecting rod 4 is leaned on push rod 8, can promote push rod 8 removes, the other end hinged joint of connecting rod 4 has dead lever 6, fixed mounting has manual handle 7 on the dead lever 6, and its tip is equipped with spherical protection head (not mark), is convenient for grip and use.
The surface of the spherical protection head is subjected to knurling treatment, the friction force is certain, and the spherical protection head is anti-skidding.
The working principle is as follows: firstly, hydraulic oil enters from an oil inlet 14, at the moment, the hydraulic oil cannot circulate due to the sealing effect of the first one-way valve core 9 and the one-way valve seat 11, so that the function of one-way control of the flow direction of the hydraulic oil is achieved, if the hydraulic oil needs to circulate, the manual control handle 7 on the manual control end cover 3 needs to be manually operated, the manual control handle 7 is pressed backwards, the manual control handle 7 pushes the connecting rod 4 to move, the connecting rod 4 further pushes the push rod 8 to move towards the second one-way valve core 10, the pushing force of the manual control handle 7 overcomes the spring force of the second one-way valve core 10, the second one-way valve core 10 is pushed to move, a sealing opening is opened, and the hydraulic oil.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (3)
1. A manual one-way valve comprises a valve body, a spring end cover and a manual end cover; the method is characterized in that: the spring end cover is fixedly arranged on one side of the valve body, and the manual end cover is fixedly arranged on the other side of the valve body; a valve hole is formed in the valve body, and a push rod, a first one-way valve core, a second one-way valve core, a one-way valve seat, a spring, a plug and an oil inlet are arranged in the valve hole; the first one-way valve core is abutted against the valve hole and is in sliding contact with the inner surface of the valve body, a second one-way valve core is arranged in the first one-way valve core, the second one-way valve core penetrates through the inner surface of the first one-way valve core and is in sliding contact with the inner surface of the first one-way valve core, a spring is arranged in the second one-way valve core, one end of the spring is abutted against the second one-way valve core, and the other end of the spring is abutted against the inner surface of a spring; the check valve seat is arranged on the right side of the first check valve core, is hollow, and has an inner hole with a diameter smaller than that of the first check valve core; a plurality of push rods are arranged on the right side of the second one-way valve core, the push rods are T-shaped, the push rods are accommodated in the valve holes and abut against the inner surface of the valve body, one side of each push rod abuts against the second one-way valve core, and the oil inlets are arranged below the valve body; the valve body top is equipped with the end cap, manual end cover is hollow form, be equipped with the connecting rod in the manual end cover, the connecting rod top is leaned on manual end cover internal surface and rather than sliding contact, the one end top of connecting rod is leaned on the push rod, the other end hinged joint of connecting rod has the dead lever, fixed mounting has manual handle on the dead lever.
2. The manual check valve of claim 1, wherein: the end part of the manual control handle is provided with a spherical protection head.
3. The manual check valve of claim 2, wherein: and knurling the surface of the spherical protective head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921236789.5U CN210484230U (en) | 2019-08-01 | 2019-08-01 | Manual control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921236789.5U CN210484230U (en) | 2019-08-01 | 2019-08-01 | Manual control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484230U true CN210484230U (en) | 2020-05-08 |
Family
ID=70533888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921236789.5U Active CN210484230U (en) | 2019-08-01 | 2019-08-01 | Manual control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628221A (en) * | 2020-12-16 | 2021-04-09 | 宁波盛德气动液压有限公司 | Pneumatic hydraulic element capable of being manually finely adjusted based on feeding degree |
-
2019
- 2019-08-01 CN CN201921236789.5U patent/CN210484230U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628221A (en) * | 2020-12-16 | 2021-04-09 | 宁波盛德气动液压有限公司 | Pneumatic hydraulic element capable of being manually finely adjusted based on feeding degree |
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