CN203809756U - Novel spring cover structure for multi-way reversing valve - Google Patents
Novel spring cover structure for multi-way reversing valve Download PDFInfo
- Publication number
- CN203809756U CN203809756U CN201420051497.5U CN201420051497U CN203809756U CN 203809756 U CN203809756 U CN 203809756U CN 201420051497 U CN201420051497 U CN 201420051497U CN 203809756 U CN203809756 U CN 203809756U
- Authority
- CN
- China
- Prior art keywords
- spring
- spool
- cover structure
- ring
- directional control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 8
- 238000005299 abrasion Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 3
- 230000004323 axial length Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model discloses a novel spring cover structure for a multi-way reversing valve. According to the novel spring cover structure, a traditional large spring is changed into an inner small spring and an outer small spring, space is saved, the spring cover interior top is changed to be a flat bottom, the axial length of a spring retainer ring A is increased, a valve core cannot be blocked, and meanwhile oil leakage is avoided due to the fact that installation portions of the spring cover and the multi-way reversing valve are thick.
Description
Technical field
The utility model relates to a kind of spring shield structure, relates in particular to a kind of multiple directional control valve novel spring cover structure.
Background technique
On engineering machinery, building machinery, petroleum machinery, mine equipment and ship machinery etc., the resetting-mechanism of the control spool of the multiple directional control valve of application is fairly simple in the market, the single big spring of its general employing resets, reset is poor and take up room greatlyr, may occur losing reset function after working long hours.Meanwhile, the inner tip of spring shield has a deep gouge, deep gouge be the stroke that increases spool be object, but in the process that promotes spool, there will be the main phenomenon of card, and the part that spring shield and multi-way reversing valve body are installed is thinner, easily occurs oil leakage phenomenon.
Summary of the invention
The purpose of this utility model is, a kind of multiple directional control valve novel spring cover structure is provided, and it is better that it has reset, promote spool and be not prone to stuck phenomenon, and spring shield and multi-way reversing valve body mounting portion thicker, avoid occurring the phenomenon of leakage of oil.
To achieve these goals, technical solutions of the utility model are as follows:
A kind of multiple directional control valve novel spring cover structure, is characterized in that: it comprises check ring A, outer spring, sleeve A, check ring B, interior hexagonal deep gouge screw, valve body, spool, seal ring, socket head screw, sleeve B, inner spring, screw back-up ring, spring shield composition; Spring shield is fixed on the valve body of multiple directional control valve by four socket head screws; In the time that control spool moves upward, spool promotes check ring B and moves up, and check ring A is blocked motionless by spring shield, and then compression inner spring and outer spring; When not in the time controlling spool action, spool resets under the effect of inner spring and outer spring; In the time that control spool moves downward, spool pulls spring back-up ring A to move down, and check ring B is blocked motionless by valve body, and then compression inner spring and outer spring; When not in the time controlling spool action, spool resets under the effect of inner spring and outer spring.
Above-mentioned a kind of multiple directional control valve novel spring cover structure, is characterized in that: between check ring A and spool, increased the sleeve B of a high hardness, prevented that excessive abrasion from appearring in valve core movement process.
Above-mentioned a kind of multiple directional control valve novel spring cover structure, is characterized in that: between check ring B and spool, increased the sleeve A of a high hardness, prevented that excessive abrasion from appearring in valve core movement process.
Above-mentioned a kind of multiple directional control valve novel spring cover structure, is characterized in that: be processed with a deep gouge in the upper end of check ring A, be used for leading to screw back-up ring.
Above-mentioned a kind of multiple directional control valve novel spring cover structure, is characterized in that: be processed with a deep gouge in the lower end of check ring B, be used for leading to spool.
Above-mentioned a kind of multiple directional control valve novel spring cover structure, is characterized in that: interior hexagonal deep gouge screw is used for attachment screw back-up ring and spool.
Above-mentioned a kind of multiple directional control valve novel spring cover structure, is characterized in that: at the attachment face of spring shield and valve body, a seal ring is housed, is used for preventing leaking of fluid.
The beneficial effects of the utility model: this novel spring cover structure becomes big spring of tradition in one and outer two little springs, save space, spring shield inner tip becomes flat, increased the axial length of check ring A simultaneously, make spool there will not be stuck phenomenon, spring shield and multi-way reversing valve body mounting portion are thicker simultaneously, avoid occurring the phenomenon of leakage of oil.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further detailed.
As shown in Figure 1, a kind of multiple directional control valve novel spring cover structure, it comprises that check ring A 1, outer spring 2, sleeve A 3, check ring B 4, interior hexagonal deep gouge screw 5, valve body 6, spool 7, seal ring 8, socket head screw 9, sleeve B 10, inner spring 11, screw back-up ring 12, spring shield 13 form; Spring shield 13 is fixed on the valve body of multiple directional control valve by four socket head screws 9; In the time that control spool 7 moves upward, spool 7 promotes check ring B 4 and moves up, and check ring A 1 is blocked motionless by spring shield 13, and then compression inner spring 11 and outer spring 2; When not in the time that control spool 7 moves, spool 7 resets under the effect of inner spring 11 and outer spring 2; In the time that control spool 7 moves downward, spool 7 pulls spring back-up ring A1 to move down, and check ring B4 is blocked motionless by valve body, and then compression inner spring 11 and outer spring 2; When not in the time that control spool 7 moves, spool 7 resets under the effect of inner spring 11 and outer spring 2; Between check ring A 1 and spool 7, increase the sleeve B 10 of a high hardness, prevented that excessive abrasion from appearring in valve core movement process; Between check ring B 4 and spool 7, increase the sleeve A 3 of a high hardness, prevented that excessive abrasion from appearring in valve core movement process; Be processed with a deep gouge in the upper end of check ring A 1, be used for leading to screw back-up ring 12; Be processed with a deep gouge in the lower end of check ring B 4, be used for leading to spool 7; Interior hexagonal deep gouge screw 5 is used for attachment screw back-up ring 12 and spool 7; At spring shield 13 and the attachment face of valve body, a seal ring 8 is housed, is used for preventing leaking of fluid.
The above is preferred embodiment of the present utility model; the technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in scope of patent protection of the present utility model.
Claims (7)
1. a multiple directional control valve novel spring cover structure, is characterized in that: it comprises check ring A, outer spring, sleeve A, check ring B, interior hexagonal deep gouge screw, valve body, spool, seal ring, socket head screw, sleeve B, inner spring, screw back-up ring, spring shield composition; Spring shield is fixed on the valve body of multiple directional control valve by four socket head screws; In the time that control spool moves upward, spool promotes check ring B and moves up, and check ring A is blocked motionless by spring shield, and then compression inner spring and outer spring; When not in the time controlling spool action, spool resets under the effect of inner spring and outer spring; In the time that control spool moves downward, spool pulls spring back-up ring A to move down, and check ring B is blocked motionless by valve body, and then compression inner spring and outer spring; When not in the time controlling spool action, spool resets under the effect of inner spring and outer spring.
2. a kind of multiple directional control valve novel spring cover structure according to claim 1, is characterized in that: between check ring A and spool, increased the sleeve B of a high hardness, prevented that excessive abrasion from appearring in valve core movement process.
3. a kind of multiple directional control valve novel spring cover structure according to claim 1, is characterized in that: between check ring B and spool, increased the sleeve A of a high hardness, prevented that excessive abrasion from appearring in valve core movement process.
4. a kind of multiple directional control valve novel spring cover structure according to claim 1, is characterized in that: be processed with a deep gouge in the upper end of check ring A, be used for leading to screw back-up ring.
5. a kind of multiple directional control valve novel spring cover structure according to claim 1, is characterized in that: be processed with a deep gouge in the lower end of check ring B, be used for leading to spool.
6. a kind of multiple directional control valve novel spring cover structure according to claim 1, is characterized in that: interior hexagonal deep gouge screw is used for attachment screw back-up ring and spool.
7. a kind of multiple directional control valve novel spring cover structure according to claim 1, is characterized in that: at the attachment face of spring shield and valve body, a seal ring is housed, is used for preventing leaking of fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051497.5U CN203809756U (en) | 2014-01-27 | 2014-01-27 | Novel spring cover structure for multi-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051497.5U CN203809756U (en) | 2014-01-27 | 2014-01-27 | Novel spring cover structure for multi-way reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809756U true CN203809756U (en) | 2014-09-03 |
Family
ID=51448506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420051497.5U Expired - Lifetime CN203809756U (en) | 2014-01-27 | 2014-01-27 | Novel spring cover structure for multi-way reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809756U (en) |
-
2014
- 2014-01-27 CN CN201420051497.5U patent/CN203809756U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |