CN201284206Y - Long-term supporting hydraulic operating gear - Google Patents

Long-term supporting hydraulic operating gear Download PDF

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Publication number
CN201284206Y
CN201284206Y CNU2008201383167U CN200820138316U CN201284206Y CN 201284206 Y CN201284206 Y CN 201284206Y CN U2008201383167 U CNU2008201383167 U CN U2008201383167U CN 200820138316 U CN200820138316 U CN 200820138316U CN 201284206 Y CN201284206 Y CN 201284206Y
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CN
China
Prior art keywords
piston rod
hydraulic jack
clasp nut
long time
support
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
Application number
CNU2008201383167U
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Chinese (zh)
Inventor
戴志玉
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CNU2008201383167U priority Critical patent/CN201284206Y/en
Application granted granted Critical
Publication of CN201284206Y publication Critical patent/CN201284206Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a hydraulic jack capable of supporting for long-term, which comprises a base, a jacket, an oil cylinder, a piston rod, a top cap, a pump body, a pump core, a handle, a pinning hand, an oil return valve, pressure caps and split nuts. The split nuts are sleeved outside the piston rod, and matches with the piston rod through threads. The pressure caps are arranged at the upper ends of the split nut and the top cap, and are sleeved on the piston rod. The utility model has the advantages of safer and more reliable lifting operation.

Description

The hydraulic jack that can support for a long time
Technical field
The utility model relates to a kind of jack up unit, and specifically a kind of hydraulic jack that can support load when jacking is operated for a long time can further strengthen the safety of jacking work.
Background technology
Existing hydraulic jack has advantages such as structure is compact, easy to operate, but in the jacking operating process, leakage of oil decline phenomenon can take place also occasionally, like this jack normal jacking workpiece just sometimes, thereby still exist and to be in the jacking mode of operation for a long time, shortcoming such as safety is relatively poor.If the staff need enter and be worked under the weight of jack-up, or need long-time jacking weight, then must prop up load with support in addition, could guarantee safety, operating so not only bothers but also require great effort.
Summary of the invention
Technical problem to be solved in the utility model is to propose a kind of hydraulic jack that can support for a long time that can further guarantee the jacking processing safety.
For solving the problems of the technologies described above, the hydraulic jack that the utility model can support for a long time comprises base, overcoat, oil cylinder, piston rod, top cap, the pump housing, pump core, handle, presses hand, fuel-return valve, pressure cap and clasp nut, described clasp nut is sheathed on the outside of described piston rod, both screw togather mutually, described pressure cap is located at the upper end of described clasp nut and top cap, and it is sheathed on the described piston rod.
The above-mentioned hydraulic jack that can support for a long time, the inwall of described clasp nut and the outer wall of described piston rod are respectively equipped with oppositely directed sawtooth pattern screw thread.
The above-mentioned hydraulic jack that can support for a long time, the longitudinal cross-section of described clasp nut is made of two monomers for falling echelon form, is provided with the hole at two joint faces of described monomer, is provided with the connection spring in the hole.
The above-mentioned hydraulic jack that can support for a long time also is respectively equipped with the hole on two joint faces of described clasp nut monomer, is provided with the connection bearing pin in the described hole.
The above-mentioned hydraulic jack that can support for a long time, described pressure cap and described top cap link together by two set leverages of two ends, described each leverage comprises bending shape lever, stage clip, connecting rod and back-up ring, the centre of described bending shape lever is connected in the recess of offering on the described pressure cap with bearing pin, the upper end of described connecting rod is arranged on the described bearing pin, described connecting rod is passed down through in the through hole of offering at cap two ends, described top, described compression spring sleeve is located at the bottom of described connecting rod, described back-up ring is located at the bottom of described connecting rod, blocks described stage clip.
The above-mentioned hydraulic jack that can support for a long time, described pressure cap is screwed on described top cap.
The utility model is owing to adopted above-mentioned technical pattern, and when jack was operated in jacking, under the effect that connects spring, left and right monomer separately can normally rise piston rod when clasp nut was subjected to top power.When being subjected to downforce, the clasp nut closure, and because of its with piston rod between be threaded, and with the piston rod locking, thereby can stably support load.Can adopt multiple mode such as be threaded, leverage is connected between pressure cap and the top cap.When employing is threaded, in the jacking operating process, unscrew pressure cap, make clasp nut that activity space be arranged.Jacking screws pressure cap to needs when height, makes clasp nut and pressure cap can stably support load.When adopting lever to connect, in the jacking operating process, need not move bending shape lever by plate, when piston rod rises, screw thread above the piston rod drives clasp nut and rises, spring in the tapering clasp nut in the cap of top is opened clasp nut, finishes piston rod and rises, during to the needs height, make clasp nut downward with the stage clip of pressure cap bonded assembly connecting rod lower end, tapering makes the clasp nut closure in the cap of top, and the locking piston rod makes clasp nut and pressure cap can stably support load.Thereby the utility model jack has the advantage of safety and reliability.Set connection bearing pin in the clasp nut can guarantee that two monomers of clasp nut after unclamping, can also closely link together once more as the home position.
Description of drawings
Fig. 1 is the external structure scheme drawing of the utility model jack;
Fig. 2 be among Fig. 1 A-A to the semi-sictional view structural representation;
Fig. 3 is the structural representation of clasp nut;
Fig. 4 is that B-B among Fig. 3 is to cross-sectional view;
Fig. 5 is that C-C among Fig. 3 is to cross-sectional view;
Fig. 6 is the structure for amplifying scheme drawing of I part among Fig. 2.
The specific embodiment
As depicted in figs. 1 and 2, the hydraulic jack that can support for a long time comprises base 34, overcoat 15, oil cylinder 14, piston rod 2, adjusts screw rod 1, top cap 5, the pump housing 20, pump core 21, handle 37, presses hand 36, fuel-return valve 39, pressure cap 3, clasp nut 4 and leverage.Be provided with O-ring seals 9 between overcoat 15 and the top cap 5, be provided with back-up ring 13 between the upper end of oil cylinder 14 and the top cap 5.Clasp nut 4 is sheathed on the outside of piston rod 2, and both outer walls are respectively equipped with oppositely directed sawtooth pattern screw thread and screw togather mutually, as shown in Figure 6.Pressure cap 3 is located at the upper end of clasp nut 4, and it is sheathed on the piston rod 2.Pressure cap 3 and top cap 5 link together by two leverages at two ends, each leverage comprises bending shape lever 11, stage clip 8, connecting rod 6, packing ring 10 and back-up ring 12, be connected in the recess of offering on the pressure cap 3 with bearing pin 7 in the middle of the bending shape lever 11, the upper end of connecting rod 6 is arranged on the bearing pin 7, connecting rod 6 is passed down through in the through hole of offering at cap 5 two ends in top, stage clip 8 is sheathed on the bottom of connecting rod 6, and back-up ring 12 is located at the bottom of connecting rod 6, and blocks stage clip 8.Certainly, in the structure of the utility model hydraulic jack, can adopt simple screw connection structure between pressure cap 3 and the top cap 5, but the inconvenience relatively that operates.
As shown in Figure 3, the longitudinal cross-section of clasp nut 4 is for falling echelon form.As shown in Figure 4, it is made of left and right two monomers 41,42, and two joint faces of left and right two monomers are provided with the hole, is provided with in the hole to connect spring 43.As shown in Figure 5, also be respectively equipped with the hole on two joint faces of left and right monomer 41,42, be provided with connection bearing pin 44 in the hole.
In the utility model structure, can also adopt the screw thread of other shapes such as angular thread, Acme thread to link to each other between clasp nut and the piston rod.

Claims (6)

1, the hydraulic jack that can support for a long time, comprise base, overcoat, oil cylinder, piston rod, top cap, the pump housing, pump core, handle, press hand and fuel-return valve, it is characterized in that, it also comprises pressure cap and clasp nut, described clasp nut is sheathed on the outside of described piston rod, both screw togather mutually, and described pressure cap is located at the upper end of described clasp nut and top cap, and it is sheathed on the described piston rod.
2, the hydraulic jack that can support for a long time as claimed in claim 1 is characterized in that, the inwall of described clasp nut and the outer wall of described piston rod are respectively equipped with oppositely directed sawtooth pattern screw thread.
3, the hydraulic jack that can support for a long time as claimed in claim 1 or 2 is characterized in that, the longitudinal cross-section of described clasp nut is made of two monomers for falling echelon form, is provided with the hole at two joint faces of described monomer, is provided with the connection spring in the hole.
4, the hydraulic jack that can support for a long time as claimed in claim 1 or 2 is characterized in that, also is respectively equipped with the hole on two joint faces of described clasp nut monomer, is provided with the connection bearing pin in the described hole.
5, the hydraulic jack that can support for a long time as claimed in claim 1 or 2, it is characterized in that, described pressure cap and described top cap link together by two set leverages of two ends, described each leverage comprises bending shape lever, stage clip, connecting rod and back-up ring, the centre of described bending shape lever is connected in the recess of offering on the described pressure cap with bearing pin, the upper end of described connecting rod is arranged on the described bearing pin, described connecting rod is passed down through in the through hole of offering at cap two ends, described top, described compression spring sleeve is located at the bottom of described connecting rod, described back-up ring is located at the bottom of described connecting rod, blocks described stage clip.
6, the hydraulic jack that can support for a long time as claimed in claim 1 or 2 is characterized in that, described pressure cap is screwed on described top cap.
CNU2008201383167U 2008-09-16 2008-09-16 Long-term supporting hydraulic operating gear Expired - Lifetime CN201284206Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201383167U CN201284206Y (en) 2008-09-16 2008-09-16 Long-term supporting hydraulic operating gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201383167U CN201284206Y (en) 2008-09-16 2008-09-16 Long-term supporting hydraulic operating gear

Publications (1)

Publication Number Publication Date
CN201284206Y true CN201284206Y (en) 2009-08-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201383167U Expired - Lifetime CN201284206Y (en) 2008-09-16 2008-09-16 Long-term supporting hydraulic operating gear

Country Status (1)

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CN (1) CN201284206Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111410135A (en) * 2020-03-31 2020-07-14 成都飞机工业(集团)有限责任公司 Jack with fine adjustment and locking functions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111410135A (en) * 2020-03-31 2020-07-14 成都飞机工业(集团)有限责任公司 Jack with fine adjustment and locking functions

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20090805

Effective date of abandoning: 20080916