CN103879917B - Bidirectional hydraulic integrated block overloading protective device of lifting jack - Google Patents

Bidirectional hydraulic integrated block overloading protective device of lifting jack Download PDF

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Publication number
CN103879917B
CN103879917B CN201410112594.5A CN201410112594A CN103879917B CN 103879917 B CN103879917 B CN 103879917B CN 201410112594 A CN201410112594 A CN 201410112594A CN 103879917 B CN103879917 B CN 103879917B
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China
Prior art keywords
valve body
hydraulic
assembly
valve
block assembly
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Active
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CN201410112594.5A
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Chinese (zh)
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CN103879917A (en
Inventor
陈其根
孔令飞
孔德伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Heng Gao Electrical Manufacturing Co., Ltd.
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JIANGSU JIANGBEI HYDRAULIC MACHINERY MANUFACTURING Co Ltd
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Priority to CN201410112594.5A priority Critical patent/CN103879917B/en
Publication of CN103879917A publication Critical patent/CN103879917A/en
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Abstract

The invention relates to a bidirectional hydraulic integrated block overloading protective device of a lifting jack. The bidirectional hydraulic integrated block overloading protective device of the lifting jack comprises a manual reversing valve, an adjustment hand wheel switch, a valve body adjusting rod, a check valve assembly, a safety valve body assembly, a hydraulic integrated block assembly and a one-way valve assembly, wherein the safety valve body assembly is embedded in an installation hole of the hydraulic integrated block assembly, a valve body pressing shaft is assembled in an inner cavity hole of the safety valve body assembly, a spring, a plugging head and a steel ball are sequentially arranged between the valve body pressing shaft and the safety valve body assembly, a valve body gland is connected with the valve body pressing shaft, the one-way valve assembly is matched with a corresponding hole of the hydraulic integrated block assembly in a sealing mode and is connected and fixed to the hydraulic integrated block assembly through a plug screw and a socket head cap screw, and the check valve assembly is matched with a corresponding hole of the hydraulic integrated block assembly through the valve body adjusting rod in a sealing mode. When the hydraulic lifting jack exceeds a set pressure value, a safety valve is automatically opened, hydraulic oil is released through the safety valve and discharged back to an oil storage barrel, use safety of the lifting jack is guaranteed, and meanwhile the service life of the lifting jack is prolonged.

Description

Jack bidirectional hydraulic integrated package overload protection arrangement
Technical field
The present invention relates to jack, especially a kind of overload safety protection device of jack hydraulic integrated package.
Background technology
At present, existing conventional hydraulic jacks jacking system is without any overload safety protection device, when jack works Set pressure is in blind area, can so cause directly to use product over burdening, so as to cause damage of jack or out of control, Constitute potential safety hazard.For some are used for the jack of Grand Equipments, such as hydraulic air jack, if overload can not be realized Safeguard protection, often brings immeasurable loss.
The content of the invention
For above the deficiencies in the prior art, it is an object of the invention to provide a kind of hydraulic jack Overload Protection dress Put, when hydraulic jack exceedes setup pressure value, relief valve is automatically opened up, hydraulic oil drains back oil storage by relief valve release Cylinder, it is ensured that jack is using safety, while improving the service life of jack.
The purpose of the present invention is achieved by the following technical solution:
Jack bidirectional hydraulic integrated package overload protection arrangement, including hand-operated direction valve, adjusting handle switch, adjusting rod Cap, valve body adjusting rod, valve body gland, steel ball, shut-off valve assemblies, safety valve body component, Hydraulic integration block assembly and unidirectional valve group Part;Hand-operated direction valve is located above Hydraulic integration block assembly, and safety valve body component is by the O-shaped sealing member III in its seal groove It is embedded in the installing hole of Hydraulic integration block assembly, valve body last item is assemblied in the lumen orifice of safety valve body component, valve body last item Spring, plug and steel ball are sequentially provided between safety valve body component, the valve body gland is by O-shaped sealing member II and valve body pressure Axle connects;The check valve assembly is coordinated with the respective aperture sealing of Hydraulic integration block assembly by O-shaped sealing member IV and steel ball, and It is connected with Hydraulic integration block assembly by plug screw and soket head cap screw and fixed;The shut-off valve assemblies by valve body adjusting rod and O-shaped sealing member I is coordinated with the respective aperture sealing of Hydraulic integration block assembly, and the upper end of valve body adjusting rod is provided with regulation pole cap, adjusts Pole cap is provided with adjusting handle switch.
Used as the preferred technical solution of the present invention, the termination of the valve body adjusting rod is coordinated with the T-slot of shut-off valve assemblies Connection.
Used as the preferred technical solution of the present invention, the adjusting handle switch is adjusted with valve body by the square hole that its center is provided with The square termination of pole is engaged.
Used as the preferred technical solution of the present invention, the regulation pole cap is by outer-hexagonal bolts II and Hydraulic integration block assembly Connect and fixed.
Used as the preferred technical solution of the present invention, the valve body gland is by outer-hexagonal bolts I and Hydraulic integration block assembly Connect and fixed.
Used as the preferred technical solution of the present invention, the hand-operated direction valve is by four soket head cap screw spinning in hydraulic collection The upper surface of lump elements.
The invention has the beneficial effects as follows:Relative to prior art, the invention provides a kind of hydraulic jack overload protection Device, when hydraulic jack exceedes setup pressure value, relief valve is automatically opened up, and hydraulic oil drains back storage by relief valve release Oily cylinder, it is ensured that jack is using safety, while improving the service life of jack.
The present invention is protected for, in hydraulic air jack, disclosure satisfy that working condition requirement of the aircraft under poor working conditions The stable performance of card jack hydraulic system, so that jack does not glide when working, does not damage parts.Work efficiency of the present invention Height, it is safe and reliable.
Description of the drawings
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the fractionation structural representation of the present invention.
In figure:1. hand-operated direction valve, 2. adjusting handle switch, 3. adjusts pole cap, 4. valve body adjusting rod, 5. ends valve group Part, 6.O types sealing member I, 7. valve body gland, 8.O types sealing member II, 9. valve body last item, 10. spring, 11. plugs, 12. steel balls, 13. safety valve body components, 14.O types sealing member III, 15. Hydraulic integration block assemblies, 16. plug screws, 17. check valve assemblies, 18.O types Sealing member IV, 19. steel balls, 20. outer-hexagonal bolts I, 21. soket head cap screws, 22. outer-hexagonal bolts II.
Specific embodiment
As shown in figure 1, jack bidirectional hydraulic integrated package overload protection arrangement, including hand-operated direction valve 1, adjusting handle is opened Close 2, adjust pole cap 3, valve body adjusting rod 4, valve body gland 7, steel ball, shut-off valve assemblies 5, safety valve body component 13, Hydraulic integration Block assembly and check valve assembly 17;Hand-operated direction valve 1 is located above Hydraulic integration block assembly 15, and safety valve body component 13 passes through O-shaped sealing member III 14 in its seal groove is embedded in the installing hole of Hydraulic integration block assembly 15, and valve body last item 9 is assemblied in safety In the lumen orifice of valve component 13, spring 10, plug 11 and steel ball between valve body last item 9 and safety valve body component 13, are sequentially provided with 12, the valve body gland 7 is connected with valve body last item 9 by O-shaped sealing member II 8;The check valve assembly 17 passes through O-shaped sealing member 18 IV and steel ball 19 coordinate with the respective aperture sealing of Hydraulic integration block assembly 15, and pass through plug screw 16 and soket head cap screw 21 and liquid Integrated block assembly 15 is pressed to connect and fix;The shut-off valve assemblies 5 pass through valve body adjusting rod 4 and O-shaped sealing member I 6 and hydraulic collection The respective aperture sealing of lump elements 15 coordinates, and the upper end of valve body adjusting rod 4 is provided with regulation pole cap 3, adjusts pole cap 3 and is provided with regulation Handwheel switch 2.
In the present embodiment, termination and the T-slot of shut-off valve assemblies 5 of the valve body adjusting rod 4 are connected.Adjusting handle Switch 2 is engaged with the square termination of valve body adjusting rod 4 by the square hole that its center is provided with.The regulation pole cap 3 passes through outer six Angle screw II 22 is connected with Hydraulic integration block assembly 15 and fixed, and valve body gland 7 passes through outer-hexagonal bolts I 20 and hydraulic manifold block Component 15 connects and fixes.The hand-operated direction valve 1 is by four soket head cap screw spinning in the upper of Hydraulic integration block assembly 15 Surface.
Overload protection arrangement of the present invention is mainly used in hydraulic air jack, particularly in the maintenance of fight machine series products In maintenance or repairing, as the safety guarantee key mechanism of hydraulic lifting system.When the present invention is used, bleed screw, row are opened Degreasing fluid inner chamber residual gas;Reversal valve is seated in the position for rising, and stop valve adjusting handle switch is rotated clockwise, extremely Feel is fastened, you can lift handle up and down, jack piston is increased, jack-up weight, otherwise is declined.Major technique of the present invention refers to Mark:Rated pressure 16Mpa, oil pump capacity 300mL/min, 70 DEG C to -40 DEG C of heatproof;The present invention uses No. 15 aircraft fluids, Hydraulic manifold block inner chamber is noted during use without any debris, fluid must be used Jing after 100 mesh rustless steel steel wire net filtrations.

Claims (5)

1. a kind of jack bidirectional hydraulic integrated package overload protection arrangement, is characterized in that:The overload protection arrangement includes manually Reversal valve (1), adjusting handle switch, adjust pole cap, valve body adjusting rod (4), valve body gland (7), steel ball, shut-off valve assemblies (5), Safety valve body component (13), Hydraulic integration block assembly and check valve assembly (17);Hand-operated direction valve (1) is located at hydraulic manifold block group Above part (15), safety valve body component (13) is embedded in hydraulic manifold block by the O-shaped sealing member III (14) in its seal groove In the installing hole of component (15), valve body last item (9) is assemblied in the lumen orifice of safety valve body component (13), valve body last item (9) with Spring (10), plug (11) and steel ball (12) are sequentially provided between safety valve body component (13), the valve body gland (7) is by O Type sealing member II (8) is connected with valve body last item (9);
The check valve assembly (17) is corresponding to Hydraulic integration block assembly (15) by O-shaped sealing member (18) IV and steel ball (19) Hole sealing coordinates, and is connected with Hydraulic integration block assembly (15) by plug screw (16) and soket head cap screw (21) and fixed;It is described Shut-off valve assemblies (5) are sealed with the respective aperture of Hydraulic integration block assembly (15) by valve body adjusting rod (4) and O-shaped sealing member I (6) Coordinate, the upper end of valve body adjusting rod (4) is provided with regulation pole cap (3), adjust pole cap (3) and be provided with adjusting handle switch (2);It is described The termination of valve body adjusting rod (4) is connected with the T-slot of shut-off valve assemblies (5).
2. jack bidirectional hydraulic integrated package overload protection arrangement according to claim 1, is characterized in that:The regulation handss Wheel switch (2) is engaged with the square termination of valve body adjusting rod (4) by the square hole that its center is provided with.
3. jack bidirectional hydraulic integrated package overload protection arrangement according to claim 1, is characterized in that:The adjusting rod Cap (3) is connected with Hydraulic integration block assembly (15) by outer-hexagonal bolts II (22) and fixed.
4. jack bidirectional hydraulic integrated package overload protection arrangement according to claim 1, is characterized in that:The valve body pressure Lid (7) is connected with Hydraulic integration block assembly (15) by outer-hexagonal bolts I (20) and fixed.
5. jack bidirectional hydraulic integrated package overload protection arrangement according to claim 1, is characterized in that:It is described to change manually To valve (1) by four soket head cap screw spinning Hydraulic integration block assembly (15) upper surface.
CN201410112594.5A 2014-03-24 2014-03-24 Bidirectional hydraulic integrated block overloading protective device of lifting jack Active CN103879917B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410112594.5A CN103879917B (en) 2014-03-24 2014-03-24 Bidirectional hydraulic integrated block overloading protective device of lifting jack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410112594.5A CN103879917B (en) 2014-03-24 2014-03-24 Bidirectional hydraulic integrated block overloading protective device of lifting jack

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CN103879917A CN103879917A (en) 2014-06-25
CN103879917B true CN103879917B (en) 2017-04-12

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111099513A (en) * 2018-10-28 2020-05-05 国营四达机械制造公司 Hydraulic jack for airplane

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1465519A (en) * 2002-07-02 2004-01-07 鲁才略 Electric jack
KR20060007558A (en) * 2004-07-20 2006-01-26 현대모비스 주식회사 Portable jack of vehicle
CN101318614A (en) * 2007-06-08 2008-12-10 孔照根 Gas control hydraulic jack
CN203877836U (en) * 2014-03-24 2014-10-15 江苏江北液压机械制造有限公司 Overload protection device of jack two-way hydraulic integration block

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1465519A (en) * 2002-07-02 2004-01-07 鲁才略 Electric jack
KR20060007558A (en) * 2004-07-20 2006-01-26 현대모비스 주식회사 Portable jack of vehicle
CN101318614A (en) * 2007-06-08 2008-12-10 孔照根 Gas control hydraulic jack
CN203877836U (en) * 2014-03-24 2014-10-15 江苏江北液压机械制造有限公司 Overload protection device of jack two-way hydraulic integration block

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Inventor after: Chen Jiayu

Inventor after: Chen Qigen

Inventor after: Kong Lingfei

Inventor after: Kong Dewei

Inventor before: Chen Qigen

Inventor before: Kong Lingfei

Inventor before: Kong Dewei

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Effective date of registration: 20170410

Address after: 225500 Jiangsu city of Taizhou province Jiangyan jinguiyuan town Jiangyan District No. 7 Building 205 room

Patentee after: Chen Jiayu

Address before: 225300 Taizhou Province medicine high tech Zone Phoenix Street Zhenxing Road, No. 118, Jiangsu

Patentee before: JIANGSU JIANGBEI HYDRAULIC MACHINERY MANUFACTURING CO., LTD.

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Effective date of registration: 20180426

Address after: 225500 high tech equipment Industrial Park, Bai Mi Town, Jiangyan District, Taizhou, Jiangsu

Patentee after: Jiangsu Heng Gao Electrical Manufacturing Co., Ltd.

Address before: 225500 room 205, building 7, Jin Gui Yuan, Jiangyan Town, Jiangyan District, Taizhou, Jiangsu.

Patentee before: Chen Jiayu

TR01 Transfer of patent right