CN208587348U - A kind of New Type of Differential dynamic formula overflow valve - Google Patents
A kind of New Type of Differential dynamic formula overflow valve Download PDFInfo
- Publication number
- CN208587348U CN208587348U CN201821152281.2U CN201821152281U CN208587348U CN 208587348 U CN208587348 U CN 208587348U CN 201821152281 U CN201821152281 U CN 201821152281U CN 208587348 U CN208587348 U CN 208587348U
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- China
- Prior art keywords
- left end
- spring
- valve
- guide rod
- spool
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- Expired - Fee Related
Links
- 230000013011 mating Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 206010008469 Chest discomfort Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Safety Valves (AREA)
Abstract
A kind of New Type of Differential dynamic formula overflow valve, including valve body, valve inner left end are provided with valve seat, and spool is arranged in the left side of valve seat and is connected with valve seat, and spool left end is provided with spring；It is characterized by: the valve core inside right end is set as staged, and it is provided with retaining ring, retaining ring right end is provided with O-ring seal A；The valve inner is provided with guide rod, and the right end of guide rod is matched with spool, and the left end of guide rod is provided with long waist type through slot；Spring is connected with spring base, and is set in guide rod left end surface；The spring base inner surface is provided with location hole, and pin passes through the location hole that long waist type through slot is fixed on spring base；The left end of spring base is provided with pressure regulation screw rod；The utility model is structurally reasonable, easy to operate, and stability is good；Only overcome spring force i.e. pressure-adjustable, keep pressure regulation more labor-saving, to improve testing efficiency；Work difficulty is not only reduced, and is improved work efficiency, time saving and energy saving, save the cost.
Description
Technical field
The utility model relates to the field of overflow valve more particularly to a kind of New Type of Differential dynamic formula overflow valves.
Background technique
Overflow valve is a kind of hydraulic pressure control valve, mainly plays level pressure overflow, pressure stabilizing in hydraulic device, and system is unloaded
Lotus and safeguard protection effect；The common Differential Relief Valve of the prior art, mainly have valve body, valve seat, spool, spring, piston,
The composition such as red copper pad, pressure regulation screw rod, locking nut；Pressure regulation screw rod need to be adjusted when the valve delivery test changes amount of spring compression to adjust
Pressure needed for fixed, during pressure regulation, P1 is high pressure chest, is formed by hydraulic coupling by piston and acts directly on pressure regulation screw rod
On, and the power is generally greater than spring force, the torsion of rotation pressure regulation screw rod in this way must overcome the hydraulic coupling of spring force and P1 chamber,
To make tester feel arduously, testing efficiency to be caused to reduce.
Summary of the invention
The utility model aim is to provide a kind of New Type of Differential dynamic formula overflow valve, and structure is simple, easy to use, improves work
Efficiency；Solves the above technical problem.
In order to achieve the above technical purposes, reach above-mentioned technical requirements, the technical scheme adopted by the utility model is
A kind of New Type of Differential dynamic formula overflow valve, including valve body, valve inner left end are provided with valve seat, spool be arranged in the left side of valve seat and with
Valve seat is connected, and spool left end is provided with spring；It is characterized by: the valve core inside right end is set as staged, and set
It is equipped with retaining ring, retaining ring right end is provided with O-ring seal A；The valve inner is provided with guide rod, right end and the spool phase of guide rod
Cooperation, the left end of guide rod is provided with long waist type through slot；Spring is connected with spring base, and is set in guide rod left end surface；Described
Spring base inner surface is provided with location hole, and pin passes through the location hole that long waist type through slot is fixed on spring base；The left end of spring base
It is provided with pressure regulation screw rod.
Preferred: the valve body left end inner surface radial direction is provided with seal groove, and O-ring seal B is provided in seal groove；
Plug screw is set as T-shaped, in mating connection with valve body left end, and the left end of plug screw is provided with locking nut.
Preferred: the pressure regulation screw rod is matched with plug screw, and connection type is set as being threadedly coupled.
The beneficial effects of the utility model；A kind of New Type of Differential dynamic formula overflow valve, compared with traditional structure: valve inner setting
There is guide rod, the right end of guide rod is matched with spool, and the left end of guide rod is provided with long waist type through slot；Spring is connected with spring base, and
It is set in guide rod left end surface；The spring base inner surface is provided with location hole, and pin passes through long waist type through slot and is fixed on bullet
The location hole of spring abutment；The left end of spring base is provided with pressure regulation screw rod；The high pressure of P1 chamber is acted on plug screw by guide rod, pressure regulation silk
Bar pushes pin band flexible spring seat, spring force i.e. pressure-adjustable is only overcome, to keep pressure regulation more labor-saving, to improve testing efficiency；
The utility model is structurally reasonable, easy to operate, and stability is good；Work difficulty is not only reduced, and is improved work efficiency,
It is time saving and energy saving, save the cost.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model principle figure；
Fig. 3 is prior art structure of relief valve schematic diagram；
In figure: 1. valve bodies；2. sealing ring A；3. valve seat；4. spool；5. retaining ring；6. spring；7. guide rod；8. long waist type is logical
Slot；9. pin；10. spring base；11. plug screw；12. pressure regulation screw rod；13. locking nut；14. seal groove；15. sealing ring B；16.
Location hole.
Specific embodiment
In order to be more clear the goal of the invention, technical solution and its advantageous effects of the utility model, below in conjunction with
The drawings and specific embodiments, the present invention will be further described in detail；
In the accompanying drawings: a kind of New Type of Differential dynamic formula overflow valve, including valve body 1,1 inside left end of valve body are provided with valve seat 3, spool
4 are arranged in the left side of valve seat 3 and are connected with valve seat 3, and 4 left end of spool is provided with spring 6；It is characterized by: the spool 4
Internal right end is set as staged, and is provided with retaining ring 5, and 5 right end of retaining ring is provided with O-ring seal A2；Inside the valve body 1
It is provided with guide rod 7, the right end of guide rod 7 is matched with spool 4, and the left end of guide rod 7 is provided with long waist type through slot 8；The spring 6
It is connected with spring base 10, and is set in 7 left end surface of guide rod；10 inner surface of spring base is provided with location hole 16, pin 9
The location hole 16 of spring base is fixed on across long waist type through slot 8；The left end of spring base 10 is provided with pressure regulation screw rod 12.
The 1 left end inner surface radial direction of valve body is provided with seal groove 14, and O-ring seal B15 is provided in seal groove 14；
Plug screw 11 is set as T-shaped, and in mating connection with 1 left end of valve body, the left end of plug screw 11 is provided with locking nut 13；The tune
Silk pressing bar 12 is matched with plug screw 11, and connection type is set as being threadedly coupled.
The specific implementation of the utility model: P and P1 is high pressure chest, and P chamber active area is greater than P1 chamber, when pressure reaches
When the difference of certain value, P chamber active force and P1 chamber active force is enough to overcome spring force, spool 4 is moved to the left opening, and high pressure oil is let out
To T mouthfuls, hydraulic system is protected；The pressure of P1 chamber is transmitted on plug screw 11 by guide rod 7, is ultimately applied on valve body 1；Pressure regulation
12 precession plug screw 11 of screw rod pushes when pressure regulation pin 9 to move right compressed spring 6 with flexible spring seat 10, and spring force then acts on
On spool 4, by the decrement of adjustment spring, set pressure required for overflow valve can be obtained；The utility model is in pressure regulation
Screw rod 12 avoids the hydraulic coupling of P1 chamber when rotating, only need to overcome spring force, pressure regulation is more labor-saving, and testing efficiency is higher.
Above-described embodiment is only intended to clearly illustrate description made by the utility model, and not to the limit of embodiment
It is fixed, to those of ordinary skill in the art, other various forms of variations can also be made on the basis of the above description
Or change, there is no necessity and possibility to exhaust all the enbodiments, and the obvious variation thus amplified out
Or it changes among still in the protection scope of the utility model.
Claims (3)
1. a kind of New Type of Differential dynamic formula overflow valve, including valve body (1), the internal left end of valve body (1) is provided with valve seat (3), and spool (4) is set
It sets the left side in valve seat (3) and is connected with valve seat (3), spool (4) left end is provided with spring (6)；It is characterized by: described
The internal right end of spool (4) is set as staged, and is provided with retaining ring (5), and retaining ring (5) right end is provided with O-ring seal A(2)；Institute
The valve body (1) stated is internally provided with guide rod (7), and the right end of guide rod (7) is matched with spool (4), and the left end of guide rod (7) is provided with
Long waist type through slot (8)；The spring (6) is connected with spring base (10), and is set in guide rod (7) left end surface；The bullet
Spring abutment (10) inner surface is provided with location hole (16), and pin (9) passes through the location hole that long waist type through slot (8) is fixed on spring base
(16)；The left end of spring base (10) is provided with pressure regulation screw rod (12).
2. a kind of New Type of Differential dynamic formula overflow valve according to claim 1, it is characterised in that: in described valve body (1) left end
Surface has been arranged radially seal groove (14), is provided with O-ring seal B(15 in seal groove (14))；Plug screw (11) is set as T word
Shape, in mating connection with valve body (1) left end, the left end of plug screw (11) is provided with locking nut (13).
3. a kind of New Type of Differential dynamic formula overflow valve according to claim 1, it is characterised in that: the pressure regulation screw rod (12) with
Plug screw (11) matches, and connection type is set as being threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821152281.2U CN208587348U (en) | 2018-07-20 | 2018-07-20 | A kind of New Type of Differential dynamic formula overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821152281.2U CN208587348U (en) | 2018-07-20 | 2018-07-20 | A kind of New Type of Differential dynamic formula overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208587348U true CN208587348U (en) | 2019-03-08 |
Family
ID=65541292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821152281.2U Expired - Fee Related CN208587348U (en) | 2018-07-20 | 2018-07-20 | A kind of New Type of Differential dynamic formula overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208587348U (en) |
-
2018
- 2018-07-20 CN CN201821152281.2U patent/CN208587348U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190308 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |