CN2254890Y

CN2254890Y - Pressure-increasing lifting device

Info

Publication number: CN2254890Y
Application number: CN 95233635
Authority: CN
Inventors: 高锡铭; 王春乐
Original assignee: Weihai Internal Combustion Engine Fittings Factory
Current assignee: Weihai Internal Combustion Engine Fittings Factory
Priority date: 1995-04-13
Filing date: 1995-04-13
Publication date: 1997-05-28
Anticipated expiration: 2005-04-13

Abstract

The utility model relates to a pressure-increasing lifting device, which is provided with a piston, a cylinder body, a pressure spiral, a sealing ring, and a nipple, wherein, the nipple which is arranged on the cylinder body is connected with a manual oil pump through a high pressure oil pipe; the piston is positioned in the cylinder body, and is formed into a closed type; the inner part of the piston is provided with a spring. When unloading, the utility model can reset automatically, the time is saved, and the labor is saved. The utility model has the advantages of simple and compact structure, reasonable construction, small size, big lifting force, high safety, and easy use and operation. The utility model is suitable for installing and debugging for heavy equipment, and leveling for a big steel beam and a prefabricated part in a building industry.

Description

The supercharging Jack

The utility model relates to a kind of lifting apparatus, specifically a kind of supercharging Jack.

At present, lifting apparatus kind is a lot, as multi-form jack, lifter etc., mostly be bulky, it is exactly one of them that baroque heavy wares, patent CW2150186Y disclose a kind of separation type hydraulic rockshaft, and it is mainly by last, following clamping body, clip-loosing mechanism, hydraulic ram is formed, clamping body separates with hydraulic ram under it, and by caging bolt vertically and raising legs fix, on, the spherical fixture block that fixture block in the following clamping body is made up of three to nine lobes, its outer rim are sphere shape, the pine card device is a screw mechanism, this apparatus structure complexity, volume is big, and end of operation can not automatically reset, and uses inconvenient.

The purpose of this utility model is exactly in order to overcome the deficiency of above-mentioned various weight-lifting equipments, to provide a kind of simple and compact for structure, the supercharging Jack that structure rationally, volume is little, easy to operate.

For achieving the above object, the utility model is provided with piston, cylinder body, pressure spiral shell, seal ring, connects mouth, the mouth that connects on the cylinder body is connected with hand oil pump by high pressure fuel pipe, it is characterized in that piston is that inner chamber is closed, its inner spring of installing, the spring upper end is fixed on the piston cavity top, and the lower end is fixed on the spring perch of cylinder base.

The utility model is simple in structure, compact, and structure is reasonable, and volume is little, is active in one's movements, and a hand oil pump can make many blwrs work simultaneously by oil pipe, and it is big to rise top power.The utility model spring is actually an extension spring, and it can make piston automatically reset, and is in installation, the leveling of heavy wares are used, convenient and strength-saving, effective.

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is the utility model structural representation, also is the scheme drawing of embodiment.

As can be seen from Figure 1, a kind of supercharging Jack, be provided with cylinder body 1, press spiral shell 2, piston 3, seal ring 4, connect mouth 5, cylinder body 1 inwall, top is processed with screw thread, cooperate with the outside thread of pressing spiral shell 2, press spiral shell 2 to be pressed on the cylinder body 1, the inboard engages closely with piston 3, when piston 3 promotes, play guiding and positioning action, press between spiral shell 2 upper inside wall and the piston and also be embedded with a dust-proof seal ring 4, be used for fixing dustproof, piston 3 is positioned at cylinder body 1, it is the inner chamber enclosed construction, and top engages with pressing spiral shell 2, and bottom and cylinder body 2 are by seal ring 4, sealing is harmonious, its inner spring 6 of installing, spring 6 upper ends are fixed on the piston cavity top, and the lower end is fixed on the spring perch 1 of cylinder base, spring 6 is actual to be an extension spring, and it can make piston 3 automatically reset; For easy to install and use, also be connected with one handle 8 on cylinder body 1 outer wall; Connect mouth 5 and be positioned at cylinder body 1 bottom, it is connected with hand oil pump by high pressure fuel pipe, and hand oil pump is an attendant equipment, belongs to prior art, no longer describes in detail, and many blwrs can effect simultaneously under the control of a cover attendant equipment.

When using the utility model, handle hand oil pump, the oil of input blwr obtains certain to give pressure after the inflow-rate of water turbine adjusting in hand oil pump, by connecing the inner chamber that mouth 5 is input to cylinder body 1 and piston 3, obtain the huge top power that rises, the jack-up piston, to realize the purpose of lifting, easy to operate, safe and reliable, be suitable for the leveling of medium-and-large-sized girder steel of building industry and preform and the Installation and Debugging of heavy wares.

Claims

1, a kind of supercharging Jack, be provided with piston, cylinder body, pressure spiral shell, seal ring, connect mouth, the mouth that connects on the cylinder body is connected with hand oil pump by high pressure fuel pipe, it is characterized in that piston is that inner chamber is closed, its inner spring of installing, the spring upper end is fixed on the piston cavity top, and the lower end is fixed on the spring perch of cylinder base.

2, supercharging Jack according to claim 1 is characterized in that said outer wall of cylinder block is provided with one handle.