CN208980243U - A kind of more piston jack - Google Patents

Abstract

The utility model discloses a kind of more piston jack, being intended to provide a kind of same high housing, it jacks size and several times can be improved and can up and the jack of past horizontal direction pushing tow, the main points of its technical scheme are that: under conditions of other structures are constant, it is arranged above and below outside within single piston is changed to multiple, there is sealing ring to be separated by each other, and cylinder sleeve and every single piston upper end top edge week plane are widened and are used to hang bracing wire with equidistant system, for restricting hoisting depth, it is multiple pistons by interior top, outer top is that the top of single piston i.e. two is two-in-one, bottom has channel to flow back and forth for hydraulic oil, piston during acting in interior top rises, piston decline in outer top, as long as having enough oil masses that can push away interior top piston lifts to position, it or by one for perpendicular one is the two-in-one combinations in flat two top, wherein flat includes multiple pistons and is used for Horizontal pushing tow, transposition is the next so that hydraulic oil is back to single-piston both when not doing work or erecting top.

Description

A kind of more piston jack

Technical field

The utility model relates to be promoted to be repaired tool i.e. jack compared with heavy object for the common small size of repair shop.

Background technique

Hydraulic jack in the prior art is as shown in Figure 1.By oil pump core 1, pump cylinder 2, piston glue bowl 3, top cap 4, liquid Pressure oil 5, adjusting screw rod 6, piston 7, inner sleeve 8, housing 9, piston glue bowl 10, pedestal 11, oil return switch 12, check valve 13,14,15 It is formed with each main spare and accessory parts group of crank 16 and hand handle 17.Biggish weight can be jacked with the manpower of very little, acting is former Reason are as follows: when hydraulic jack work, first locking oil return switch 12 is swung up by hand handle 17 and crank 16 and promotes oil pump core 1, the oil in shell shoe cream room is inhaled into oil pump body through check valve 13, when oil pump core 1 down when, the intracorporal oil of the oil pump being inhaled into Liquid is forced out, and the bottom of piston glue bowl 3 is entered by check valve 14, and piston 7 is jacked up, and the hand handle 17 that often fluctuates promotees Increase little by little piston, is limited device when piston rises to operational height and blocks and no longer rise, when needing to land, as long as (unscrewing) oil return switch 12 is opened, check valve 15 is released, and the oil in piston cylinder is flowed back in housing 9 by check valve 15, with this Piston descending at slow speed resets simultaneously.It is easy to use although top lift is big, it is small to there is jacking size, and be only limitted to up pushing tow, It is just helpless when needing horizontal pushing tow.

Summary of the invention

The utility model is to overcome above-mentioned deficiency, it is desirable to provide a kind of same high housing its jack size several times can be improved And can up and toward horizontal direction pushing tow jack, be achieved using following technical scheme.

Under conditions of other structures are constant, within single piston is changed to it is outer be arranged above and below it is double a or multiple, each other There is sealing ring to be separated by, and (outer) end top edge week plane on cylinder sleeve and every single piston is widened and is drawn for being hung with equidistant system Line, i.e., will adjacent inside and outside (interior upper, outer under, contain housing) two pistons top surface outer rim it is mutual with three or three or more bracing wires Involve for restricting hoisting depth, wherein a piston of middle can also be by the T-shaped bar at the center that is mounted on for replacing Bracing wire controls lifting height.By interior top be multiple pistons, outer top is that the top of single piston i.e. two is two-in-one, and bottom has channel for hydraulic Oil flows back and forth, and piston during acting in interior top rises, the piston decline in outer top, hydraulic oil by flowing inside outside, As long as having enough oil masses that can push away interior top piston lifts to position.

Or by one for perpendicular one be the two-in-one combinations in flat two top, wherein flat includes multiple pistons for horizontal top It pushes away, vertical to include flowing of the single piston for hydraulic oil, transposition i.e. single-piston body is flat, more pistons both when not doing work Body is perpendicular so that hydraulic oil is back to single-piston bottom.

In conclusion the utility model the main points of its technical scheme are that: within outer double to be arranged above and below or multiple interior tops Piston has sealing ring to be separated by each other, and cylinder sleeve and the girth sheets per single interior top piston top edge week plane have bracing wire by two adjacent rings Plate is implicative of each other or a piston of middle is used to replace bracing wire by the T-shaped bar at the center that is mounted on, and is more by interior top A piston, outer top are that the top of single piston i.e. two is two-in-one, and bottom has channel.

It for perpendicular one is the two-in-one combinations in flat two top by one, wherein flat includes multiple pistons, does not do work or when perpendicular top The two transposition, that is, single-piston body be it is flat, more piston bodies are perpendicular.

The utility model it has the advantage that: first is that pushing tow height can save because increasing more times again and again will be by Pushed up certain altitude but not up to should have the object of height prop up take out again jack promote its rising after piston decline after again Secondary pushing tow；Second is that can be used for horizontal pushing tow and the scope of application is wider；The piston of the more piston bodies of this external cause rises (extension) and single living The piston decline (retrogressing) of cock body provides a much smoother condition for hydraulic oil, unlike in the housing in traditional structure Oil liquid will form vacuum in decline and cause resistance, thus top lift is bigger.

Detailed description of the invention

Fig. 1 is its structure of its hydraulic jack of the prior art i.e. traditional method and acting principle display diagram；

Fig. 2 is its its structure of multiple inner pistons of the utility model and acting principle display figure；

Fig. 3 be erect for single-piston body, put down be its two-in-one structure of more piston bodies and acting schematic illustration；

It is more piston bodies that Fig. 4, which is left, and the right side is its two-in-one structure of single-piston body and acting schematic illustration；

Fig. 5 is its shape perspective view after its piston of more piston bodies in Fig. 4 rises.

Specific embodiment

It does below with reference to each attached drawing and further illustrates.

Referring to Fig.1, Fig. 1 has been described in more detail in the background technology, is not repeated herein.

It lays referring to Fig. 2 under conditions of former other structures (prior art, similarly hereinafter) are constant in cylinder sleeve 26 with inside and outside There is bracing wire 22 mutually to involve with three pistons 18 girth sheets 25 that each adjacent two top surface is widened each other being arranged above and below, the length of bracing wire 22 Degree (not shown) is subject to hoisting depth, and each piston is affixed up and down with oil-leakage-prevention with the sealing ring 19 of outside, staving 27 and It is hydraulic oil 5 between cylinder sleeve 26.Its principle (not shown) difference identical as Fig. 1 of doing work is only to rise because of more pistons Height is multiplied.

It for perpendicular one is the two-in-one combinations in flat two top by one under conditions of former other structures are constant referring to Fig. 3, Its cylinder sleeve 26 of middle flat, which includes, pushes up piston 18 for horizontal pushing tow in 3, its vertical cylinder includes single outer top piston 23 and is used for The flowing of hydraulic oil 5, the i.e. single outer top piston body of transposition be flat both when not doing work, piston body is pushed up in three for erect so as to It is the next that hydraulic oil is back to single outer top piston.

Referring to Fig. 4, under conditions of former other structures are constant, outer two titles being arranged above and below within single piston is changed to For interior top piston 18, there is sealing ring 19 to be separated by each other, per top piston in single on (outer) end come directly towards the girth sheets 25 of edge week plane with Bracing wire 22 is hung by equidistant system, i.e., the top surface outer rim of adjacent inside and outside two pistons is implicative of each other with three or three or more bracing wires For restricting hoisting depth, wherein a piston of middle is by the T-shaped bar 21 at the center that is mounted on for controlling upper raising Degree, interior top is top piston 18 in double, outer push up is that single outer top piston 23 i.e. two top is two-in-one, and bottom has channel next for hydraulic oil Flow back dynamic (not shown), and the interior top piston 18 during acting in interior top rises, outer top piston 23 decline in outer top, Then on the contrary, its hydraulic oil by flowing inside outside, as long as having enough oil masses that can push away interior top piston lifts to position when return.

Referring to Fig. 5, the girth sheets 25 of the respective top outer rim of piston 18 and cylinder sleeve 26 is pushed up in two by bracing wire 22 by every phase Adjacent two girth sheets circumference are connected with equidistant drawing.

Claims (2)

1. a kind of more piston jack, by oil pump core, pump cylinder, piston glue bowl, top cap, hydraulic oil, adjusting screw rod, piston, cylinder Set, cylinder, piston glue bowl, pedestal, oil return switch, check valve and crank and each main spare and accessory parts group of hand handle form, feature Be: within outer double to be arranged above and below or multiple interior top pistons, there is sealing ring to be separated by each other, cylinder sleeve and per top piston top in single The girth sheets of head edge week plane has that two adjacent rings plate is implicative of each other by bracing wire or a piston of middle is by being mounted on center T-shaped bar for replacing bracing wire, by interior top be multiple pistons, outer top is that the top of single piston i.e. two is two-in-one, and bottom has channel.

2. a kind of more piston jack according to claim 1, it is characterized in that: for perpendicular one being that flat two top two is closed by one One combination, wherein flat includes multiple pistons, does not do work or transposition i.e. single-piston body is flat, more piston bodies both when perpendicular top It is perpendicular.