CN203877836U - Overload protection device of jack two-way hydraulic integration block - Google Patents
Overload protection device of jack two-way hydraulic integration block Download PDFInfo
- Publication number
- CN203877836U CN203877836U CN201420135568.XU CN201420135568U CN203877836U CN 203877836 U CN203877836 U CN 203877836U CN 201420135568 U CN201420135568 U CN 201420135568U CN 203877836 U CN203877836 U CN 203877836U
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- China
- Prior art keywords
- valve body
- valve
- assembly
- integration block
- hydraulic
- 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.)
- Withdrawn - After Issue
Links
- 230000010354 integration Effects 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 16
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 210000004907 gland Anatomy 0.000 claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 238000009987 spinning Methods 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 abstract description 4
- 239000003921 oil Substances 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Valve Housings (AREA)
Abstract
The utility model relates to an overload protection device of a jack two-way hydraulic integration block. The overload protection device comprises a manual reversing valve, an adjusting hand wheel switch, a valve adjusting rod, a stop valve assembly, a safety valve assembly, a hydraulic integration block assembly and a one-way valve assembly. The safety valve assembly is embedded in an installation hole of the hydraulic integration block assembly, a valve compressing shaft is assembled in an inner cavity hole of the safety valve assembly, a spring, a plug and a steel ball are sequentially arranged between the valve compression shaft and the safety valve assembly, and a valve pressing cover is connected with the valve compression shaft. The one-way valve assembly is matched with a corresponding hole of the hydraulic integration block assembly in a sealed mode and is fixedly connected with the hydraulic integration block assembly through a plug screw and an inner hexagon screw, and the stop valve assembly is matched with a corresponding hole of the hydraulic integration block assembly through the valve adjusting rod in a sealed mode. When a hydraulic jack exceeds a set pressure value, a safety valve is automatically opened, hydraulic oil is discharged into an oil storage barrel after being released through the safety valve, use safety of the jack is guaranteed, and meanwhile the service life of the jack is prolonged.
Description
Technical field
The utility model relates to jack, especially a kind of overload safety protection device of jack hydraulic integrated package.
Background technology
At present, existing conventional hydraulic jack jacking system is without any overload safety protection device, and the pressure setting during jack work, in blind area, can cause so directly product over burdening being used, thereby cause damage of jack or out of control, forms potential safety hazard.Jack for some for Grand Equipments, for example hydraulic air jack, if can not realize Overload Protection, tends to bring immeasurable loss.
Utility model content
For above the deficiencies in the prior art; the purpose of this utility model is to provide a kind of hydraulic jack overload safety protection device; when hydraulic jack surpasses setup pressure value; safety valve is opened automatically; hydraulic oil is discharged and is drained back oil drum by safety valve; guarantee that jack is used safety, the service life of simultaneously improving jack.
The purpose of this utility model is achieved by the following technical solution:
Jack bidirectional hydraulic integrated package overload protection device, comprises hand change over valve, control hand wheel switch, regulates pole cap, valve body adjust bar, valve body gland, steel ball, shut-off valve assemblies, safety valve body assembly, Hydraulic integration block assembly and check valve assembly; Hand change over valve be located at Hydraulic integration block assembly above, safety valve body assembly is embedded in the mounting hole of Hydraulic integration block assembly by the O type sealing member III in its seal groove, valve body last item is assemblied in the lumen orifice of safety valve body assembly, between valve body last item and safety valve body assembly, be provided with successively spring, plug and steel ball, described valve body gland is connected with valve body last item by O type sealing member II; Described check valve assembly is sealed and matched by the respective aperture of O type sealing member IV and steel ball and Hydraulic integration block assembly, and is connected and fixes with Hydraulic integration block assembly with socket head cap screw by plug screw; Described shut-off valve assemblies is sealed and matched by the respective aperture of valve body adjust bar and O type sealing member I and Hydraulic integration block assembly, and the upper end of valve body adjust bar is provided with adjusting pole cap, regulates pole cap to be provided with control hand wheel switch.
As optimal technical scheme of the present utility model, the T-shaped groove of the termination of described valve body adjust bar and shut-off valve assemblies is connected.
As optimal technical scheme of the present utility model, the square hole that described control hand wheel switch is provided with by its center matches with the square termination of valve body adjust bar.
As optimal technical scheme of the present utility model, described adjusting pole cap is connected and fixes with Hydraulic integration block assembly by outer-hexagonal bolts II.
As optimal technical scheme of the present utility model, described valve body gland is connected and fixes with Hydraulic integration block assembly by outer-hexagonal bolts I.
As optimal technical scheme of the present utility model, described hand change over valve is the upper surface at Hydraulic integration block assembly by four socket head cap screw spinning.
The beneficial effects of the utility model are: with respect to prior art; the utility model provides a kind of hydraulic jack overload protection device; when hydraulic jack surpasses setup pressure value; safety valve is opened automatically; hydraulic oil is discharged and is drained back oil drum by safety valve; guarantee that jack is used safety, the service life of simultaneously improving jack.
The utility model, for hydraulic air jack, can meet the working condition requirement of aircraft under severe service conditions, guarantees the stable performance of jack hydraulic system, thereby does not glide while making jack work, does not damage parts.The utility model work efficiency is high, safe and reliable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
Fig. 1 is fractionation structural representation of the present utility model.
In figure: 1. hand change over valve, 2. control hand wheel switch, 3. regulates pole cap, 4. valve body adjust bar, 5. shut-off valve assemblies, 6.O type sealing member I, 7. valve body gland, 8.O type sealing member II, 9. valve body last item, 10. spring, 11. plugs, 12. steel balls, 13. safety valve body assemblies, 14.O type sealing member III, 15. Hydraulic integration block assemblies, 16. plug screws, 17. check valve assemblies, 18.O type sealing member IV, 19. steel balls, 20. outer-hexagonal bolts I, 21. socket head cap screws, 22. outer-hexagonal bolts II.
The specific embodiment
As shown in Figure 1, jack bidirectional hydraulic integrated package overload protection device, comprises hand change over valve 1, control hand wheel switch 2, regulates pole cap 3, valve body adjust bar 4, valve body gland 7, steel ball, shut-off valve assemblies 5, safety valve body assembly 13, Hydraulic integration block assembly and check valve assembly 17; Hand change over valve 1 be located at Hydraulic integration block assembly 15 above, safety valve body assembly 13 is embedded in the mounting hole of Hydraulic integration block assembly 15 by the O type sealing member III 14 in its seal groove, valve body last item 9 is assemblied in the lumen orifice of safety valve body assembly 13, between valve body last item 9 and safety valve body assembly 13, be provided with successively spring 10, plug 11 and steel ball 12, described valve body gland 7 is connected with valve body last item 9 by O type sealing member II 8; Described check valve assembly 17 is sealed and matched with the respective aperture of Hydraulic integration block assembly 15 by O type sealing member 18 IV and steel ball 19, and is connected and fixes with Hydraulic integration block assembly 15 with socket head cap screw 21 by plug screw 16; Described shut-off valve assemblies 5 is sealed and matched with the respective aperture of Hydraulic integration block assembly 15 by valve body adjust bar 4 and O type sealing member I 6, and the upper end of valve body adjust bar 4 is provided with and regulates pole cap 3, regulates pole cap 3 to be provided with control hand wheel switch 2.
In the present embodiment, the T-shaped groove of the termination of described valve body adjust bar 4 and shut-off valve assemblies 5 is connected.The square hole that control hand wheel switch 2 is provided with by its center matches with the square termination of valve body adjust bar 4.Described adjusting pole cap 3 is connected and fixes with Hydraulic integration block assembly 15 by outer-hexagonal bolts II 22, and valve body gland 7 is connected and fixes with Hydraulic integration block assembly 15 by outer-hexagonal bolts I 20.Described hand change over valve 1 is the upper surface at Hydraulic integration block assembly 15 by four socket head cap screw spinning.
The utility model overload protection device is mainly used in hydraulic air jack, particularly in the maintaining or repairing of fighter plane series of products, as the safety control key mechanism of hydraulic lifting system.When the utility model is used, open bleed serew, get rid of fluid inner chamber residual gas; Change-over valve is seated in the position rising, shutoff valve control hand wheel switch, and clockwise direction rotation, fastens to feel, can lift up and down handle, makes jack piston increase, jack-up weight, on the contrary decline.The utility model the key technical indexes: rated pressure 16Mpa, oil pump capacity 300mL/min, 70 ℃ to-40 ℃ of heatproofs; The utility model is used No. 15 aeronautic hydraulic oils, notices that in use hydraulic manifold block inner chamber is without any foreign material, and fluid must be used after 100 order corrosion-resistant steel wire nets filter.
Claims (6)
1. a jack bidirectional hydraulic integrated package overload protection device, is characterized in that: described overload protection device comprises hand change over valve (1), control hand wheel switch, regulates pole cap, valve body adjust bar (4), valve body gland (7), steel ball, shut-off valve assemblies (5), safety valve body assembly (13), Hydraulic integration block assembly and check valve assembly (17); Hand change over valve (1) be located at Hydraulic integration block assembly (15) above, safety valve body assembly (13) is embedded in the mounting hole of Hydraulic integration block assembly (15) by the O type sealing member III (14) in its seal groove, valve body last item (9) is assemblied in the lumen orifice of safety valve body assembly (13), between valve body last item (9) and safety valve body assembly (13), be provided with successively spring (10), plug (11) and steel ball (12), described valve body gland (7) is connected with valve body last item (9) by O type sealing member II (8);
Described check valve assembly (17) is sealed and matched with the respective aperture of Hydraulic integration block assembly (15) by O type sealing member (18) IV and steel ball (19), and is connected and fixes with Hydraulic integration block assembly (15) with socket head cap screw (21) by plug screw (16);
Described shut-off valve assemblies (5) is sealed and matched with the respective aperture of Hydraulic integration block assembly (15) by valve body adjust bar (4) and O type sealing member I (6), the upper end of valve body adjust bar (4) is provided with and regulates pole cap (3), regulates pole cap (3) to be provided with control hand wheel switch (2).
2. jack bidirectional hydraulic integrated package overload protection device according to claim 1, is characterized in that: the T-shaped groove of the termination of described valve body adjust bar (4) and shut-off valve assemblies (5) is connected.
3. jack bidirectional hydraulic integrated package overload protection device according to claim 1 and 2, is characterized in that: the square hole that described control hand wheel switch (2) is provided with by its center matches with the square termination of valve body adjust bar (4).
4. jack bidirectional hydraulic integrated package overload protection device according to claim 1, is characterized in that: described adjusting pole cap (3) is connected and fixes with Hydraulic integration block assembly (15) by outer-hexagonal bolts II (22).
5. jack bidirectional hydraulic integrated package overload protection device according to claim 1, is characterized in that: described valve body gland (7) is connected and fixes with Hydraulic integration block assembly (15) by outer-hexagonal bolts I (20).
6. jack bidirectional hydraulic integrated package overload protection device according to claim 1, is characterized in that: described hand change over valve (1) is the upper surface in Hydraulic integration block assembly (15) by four socket head cap screw spinning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420135568.XU CN203877836U (en) | 2014-03-24 | 2014-03-24 | Overload protection device of jack two-way hydraulic integration block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420135568.XU CN203877836U (en) | 2014-03-24 | 2014-03-24 | Overload protection device of jack two-way hydraulic integration block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203877836U true CN203877836U (en) | 2014-10-15 |
Family
ID=51678361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420135568.XU Withdrawn - After Issue CN203877836U (en) | 2014-03-24 | 2014-03-24 | Overload protection device of jack two-way hydraulic integration block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203877836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879917A (en) * | 2014-03-24 | 2014-06-25 | 江苏江北液压机械制造有限公司 | Bidirectional hydraulic integrated block overloading protective device of lifting jack |
-
2014
- 2014-03-24 CN CN201420135568.XU patent/CN203877836U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879917A (en) * | 2014-03-24 | 2014-06-25 | 江苏江北液压机械制造有限公司 | Bidirectional hydraulic integrated block overloading protective device of lifting jack |
| CN103879917B (en) * | 2014-03-24 | 2017-04-12 | 江苏江北液压机械制造有限公司 | Bidirectional hydraulic integrated block overloading protective device of lifting jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141015 Effective date of abandoning: 20170412 |
|
| AV01 | Patent right actively abandoned |