CN204079360U - A kind of Pneumahydraulic jack - Google Patents
A kind of Pneumahydraulic jack Download PDFInfo
- Publication number
- CN204079360U CN204079360U CN201420519891.7U CN201420519891U CN204079360U CN 204079360 U CN204079360 U CN 204079360U CN 201420519891 U CN201420519891 U CN 201420519891U CN 204079360 U CN204079360 U CN 204079360U
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- Prior art keywords
- cylinder
- annular ridge
- oil
- circular groove
- wear
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Abstract
The utility model discloses a kind of Pneumahydraulic jack, comprise base, base is provided with oil cylinder, valve body, oil pump and fuel tank, fuel tank afterbody is provided with free handle, free handle is provided with air valve, and oil cylinder adopts special fin and auxiliary wear-resisting copper strips design thereon.On each cylinder body, be provided with annular ridge by hydraulic actuating cylinder, fin be coated with wear-resisting copper strips, different cylinder body Contact can be made tight, and wear resisting property is good, pull-cylinder phenomena does not occur.
Description
Technical field
The utility model relates to a kind of jack, in particular to a kind of long service life, effectively prevents the Pneumahydraulic jack of scuffing of cylinder bore.
Background technology
Hydraulic jack is a kind of small lifting equipment, and it utilizes valve body to be sucked by the oil in fuel tank, and then the oil pressure of suction is entered oil cylinder, under the condition that pressure is equal, produce larger jacking force by the large area of hydraulic cylinder body, and then by weight jack-up.Pneumahydraulic jack is generally connected with extraneous air pump, distribution of gas is carried out as power by air valve, gas-powered oil pump is from valve body oil suction, and then sucked oil pressure is entered valve body, by arranging of valve body internal check valve, hydraulic oil is pressed in oil cylinder, oil pump and valve body are the part of prior art, directly can buy and install and use.Hydraulic actuating cylinder generally comprises outer shell and solid inner casing, or cylinder in being also provided with between outer shell and inner casing, nested successively between them, several roads seal ring is set by inside wall of cylinder top outside and several roads seal ring is set at inner casing outer wall and carry out mutual sealing, prevent hydraulic oil through to keep pressure, these seal rings are generally plastic material, be installed in be arranged on outer wall or inwall circular groove in.When hydraulic actuating cylinder rises, there is gap between inner casing and outer shell or middle cylinder, the less sealing effectiveness in gap is better, and lifting effect is also better.But, the mounting structure of circular groove and the plastic support ring of seal ring limited in unbalance loading state lower support, between interior outer shell gap strengthen, seal ring easily damages, time one easily generation of a specified duration seal ring breaks, leakage of oil, thus hydraulic actuating cylinder pull-cylinder phenomena occurs, and has a strong impact on lifting usefulness.
Utility model content
The purpose of this utility model is to provide a kind of Pneumahydraulic jack, the oil cylinder of this jack is provided with annular ridge on each cylinder body, fin is coated with wear-resisting copper strips, different cylinder body Contact is tight, resistance to unbalance loading performance is good, between cylinder tube, gap is little, and during unbalance loading, copper strips bearing force is strong, not easily scuffing of cylinder bore or oil leakage phenomenon occurs.
To achieve these goals, the utility model takes following technical scheme:
A kind of Pneumahydraulic jack, comprise base, base is provided with oil cylinder, valve body, oil pump and fuel tank, fuel tank afterbody is provided with free handle, and free handle is provided with air valve, it is characterized in that:
Described oil cylinder comprises outer shell and is nested in the inner casing in outer shell, outer shell is arranged on base, base leaves oil-through hole, outer shell leaves the first annular ridge on the inwall at top, first annular ridge is coated with the first wear-resisting copper strips, leave the first circular groove above first annular ridge, in the first circular groove, be equipped with the first seal ring, below the first annular ridge, leave the first breather hole; Described inner casing leaves the second annular ridge on the outer wall of bottom, the second annular ridge is coated with the second wear-resisting copper strips, and the second circular groove is left in the below of the second annular ridge, is equipped with the second seal ring in the second circular groove;
The oil pipeline of described oil-through hole on base is connected with unloading port with the oil outlet of valve body, the oil inlet of valve body is connected with fuel tank through the first pipeline, the inlet line of oil suction on base of valve body is connected with oil pump, oil pump is connected with air valve through the second pipeline, fuel tank is connected with air valve through the 3rd pipeline, and the emptying piston of described first breather hole and valve body to be connected and through the 4th pipeline connection to air valve through the 4th pipeline.
Further, cylinder in first is nested with between described outer shell and inner casing, in described first, cylinder leaves the 3rd annular ridge on the outer wall of bottom, 3rd annular ridge is coated with the 3rd wear-resisting copper strips, the 3rd circular groove is left below 3rd annular ridge, the 3rd seal ring is equipped with in 3rd circular groove, in described first, cylinder leaves the 4th annular ridge on the inwall at top, 4th annular ridge is coated with the 4th wear-resisting copper strips, the 4th circular groove is provided with above 4th annular ridge, the 4th seal ring is equipped with in 4th circular groove, the second breather hole is left below 4th annular ridge.
Further, cylinder in second is also nested with between cylinder and inner casing in described first, in described second, cylinder leaves the 5th annular ridge on the outer wall of bottom, 5th annular ridge is coated with the 5th wear-resisting copper strips, the 5th circular groove is left below 5th annular ridge, the 5th seal ring is equipped with in 5th circular groove, in described second, cylinder leaves the 6th annular ridge on the inwall at top, 6th annular ridge is coated with the 6th wear-resisting copper strips, the 6th circular groove is provided with above 6th annular ridge, the 6th seal ring is equipped with in 6th circular groove, the 3rd breather hole is left below 6th annular ridge.
Cylinder bottom inside bracing ring can also be provided with in described first.
Can also in described first in cylinder and second cylinder bottom inside be equipped with bracing ring.
The beneficial effect that the utility model obtains is, annular ridge on annular ridge on the outer inside wall of cylinder and middle cylinder or inner casing outer wall can close contact, wear-resisting copper strips on middle cylinder outer wall on annular ridge and outer inside wall of cylinder joint, strengthen resistance to abrasion, annular ridge on annular ridge on the middle inside wall of cylinder and inner casing outer wall can close contact, the middle inside wall of cylinder contacts with the wear-resisting copper strips on the annular ridge of inner casing outer wall, strengthen resistance to abrasion, by outer shell, middle cylinder, inner casing combines, obtain twin-tub, three cylinders, the jack hydraulic cylinder of four cylinders, long service life, prevent pull-cylinder phenomena from occurring.
Accompanying drawing explanation
Fig. 1 is inner casing cross-sectional view;
Fig. 2 is middle cylinder cross-sectional view;
Fig. 3 outer shell cross-sectional view;
Fig. 4 is the sectional structure schematic diagram of base at oil-through hole place;
Fig. 5 is that in valve body, pipeline arranges schematic diagram;
Fig. 6 is base upper pipeline relation schematic diagram;
Fig. 7 is the utility model structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further:
In the utility model, key is the structure of oil cylinder, first describes the structure of oil cylinder below in detail, then describes integral structure of the present utility model oil cylinder is placed in whole jack:
Oil cylinder can be combined by outer shell and inner casing, also three cylinder hydraulic actuating cylinders can be synthesized by outer shell, middle cylinder, inner casing three kinds successively nested groups, can also by outer shell, two nested successively in cylinder, inner casing be combined into the hydraulic actuating cylinder of four cylinders, describe the structure of outer shell, middle cylinder and inner casing below respectively, carry out being combined into hydraulic actuating cylinder after possessing this structure again and usually operate for those skilled in the art.
As shown in Figure 1, inner casing 1 is cylindrical, and top 5 is for plane or be provided with groove, to pacify into parallels for supporting weight, inner casing 1 is the piston of hydraulic actuating cylinder.The outer wall of bottom leaves the second annular ridge 2, second annular ridge 2 is coated with the second wear-resisting copper strips 3, the second circular groove 4 is left in the below of the second annular ridge 2, the second seal ring (not shown) is equipped with in second circular groove 4, second wear-resisting copper strips 3 and the contact internal walls of middle cylinder 6 described later, have the effect of Wear-resistant scratch-resistant wound.
As shown in Figure 2, in first, cylinder 6 is nested between aftermentioned outer shell 15 and inner casing 1, in first, cylinder 6 leaves the 3rd annular ridge 14 on the outer wall of bottom, 3rd annular ridge 14 is coated with the 3rd wear-resisting copper strips 13, the 3rd circular groove 12 is left below 3rd annular ridge 14, the 3rd seal ring (not shown) is equipped with in 3rd circular groove 12, in first, cylinder 6 leaves the 4th annular ridge 7 on the inwall at top, 4th annular ridge 7 is coated with the 4th wear-resisting copper strips 8, the 4th circular groove 9 is provided with above 4th annular ridge 7, the 4th seal ring (not shown) is equipped with in 4th circular groove 9, the second breather hole 20 is left below 4th annular ridge 7.In first, cylinder 6 top is left annular opening 10 and is stretched out to make inner casing 1.In first, cylinder 6 is enclosed within outside inner casing 1,4th wear-resisting copper strips 8 and the 4th seal ring all seal with the outer wall of inner casing 1 and contact, simultaneously, second wear-resisting copper strips 3 of inner casing 1 all contacts with the inner wall sealing of cylinder in first 6 with the second seal ring, the lower edge of such 4th wear-resisting copper strips 8 and the upper limb close contact of the second wear-resisting copper strips 3, add upper and lower seal ring, serve good sealing function.In the utility model oil cylinder an embodiment in, in first, cylinder in a similar second can also be nested with by cylinder 6, and then be inserted in inner casing, like this can growing liquid cylinder pressure collapsing length.In the utility model oil cylinder another embodiment in, in first, cylinder 6 bottom inside can be equipped with bracing ring 11, for playing jacking fixation when inner casing 1 falls to inner casing, prevents inner casing 1 from skew occurring below cylinder 6 from first or falls too much.In another embodiment of the present utility model, in first, in cylinder and second, cylinder can arrange bracing ring in bottom inside.In second breather hole 20(second, cylinder correspondingly can be provided with the 3rd breather hole) air can be made to pass through, thus when making inner casing 1 rise or fall in inner casing 1 and first in cylinder 6 or the second between cylinder gap keep pressure communication with extraneous.
As shown in Figure 3 and Figure 4, outer shell 15 is arranged on the negative thread 23 of base 22 by the outside thread 25 of bottom outside, base leaves oil-through hole 24 to make hydraulic oil flow into or to flow out, outer shell 15 leaves the first annular ridge 16 on the inwall at top, first annular ridge 16 is coated with the first wear-resisting copper strips 19, the first circular groove 17 is left above first annular ridge 16, the first seal ring (not shown) is equipped with in first circular groove, the first breather hole 21 is left below first annular ridge 16, outer shell 15 top is left annular opening 18 and is risen to make cylinder 6 in first or fall.In first, the 3rd of cylinder 6 the wear-resisting copper strips 13 contacts the outer inside wall of cylinder, the outer inside wall of cylinder of the 3rd seal ring contact on 3rd circular groove, first wear-resisting copper strips 19 of outer shell contacts the outer wall of cylinder 6 in first, and in the first seal ring contact first on the first circular groove 17, the outer wall of cylinder 6 seals.First breather hole 21 can make air pass through, thus gap keeps pressure communication with extraneous when making that in first, cylinder 6 rises or falls and between outer shell 15.
In above-mentioned outer shell 15, first, in cylinder 6, second, each annular ridge of cylinder, inner casing 1 is material identical with each cylinder body and one-body molded, not only adhesion-tight, and be convenient to cover wear-resisting copper strips, each annular ridge transversal surface is generally rectangle, is convenient to reserve balance upper and lower surface and other annular ridges fit tightly.
Below on above-mentioned oil cylinder basis, the structure of the utility model hydraulic jack is described:
Fig. 6 is that base 22 upper pipeline arranges schematic top plan view, and Fig. 7 is the utility model integral structure schematic diagram.Outer shell in oil cylinder 31 is arranged on base 22 by screw thread, oil-through hole 24 is connected by the oil outlet G of the delivery line 51 with valve body 32 that are opened in chassis interior, delivery line 51 continues to be communicated to unloading port H, oil suction M on valve body 32 is connected with the cylinder body 53 of the pneumatic piston in oil pump 33 through inlet line 52, oil pump 33 drives pneumatic piston to move in cylinder body 53 up and down under the pressure of ambient atmos, pneumatic piston upward movement is can by hydraulic oil from sucking-off in valve body 32, again hydraulic oil is compressed when moving downward, controlled by check valve, be compressed in oil cylinder.Oil pump structure is prior art, has the oil pump that can realize oil suction and force feed function in commercially available Pneumahydraulic jack, the HX-80 type Pneumahydraulic jack produced as Baoding Heng Xin company just containing oil pump.Oil pump 33 is connected with air valve 40 through the second pipeline 38.
Valve body also has multiple structure, Fig. 5 gives a kind of instantiation structural representation of valve body, hydraulic oil is from fuel tank 34, be connected with valve body oil inlet A through the first pipeline 35, then oil suction M is arrived through curved B, check valve C, with one voice D successively, then be inhaled into inlet line 52, then oil pump 33 force feed, hydraulic oil returns D with one voice through oil suction M and then crosses check valve F through curved E and arrive oil outlet G and then enter oil cylinder through delivery line 51.Valve body 32 central axis is also provided with pipeline and check valve I, be unloading port H below, top is provided with thimble groove, is connected in thimble groove, is equipped with thimble in thimble groove through J with one voice by pipeline with oil inlet A, pneumatic piston and upper cover is equipped with in circular cavity above thimble, on cover and leave opening, this opening connects the first breather hole 21 of oil cylinder by the 4th pipeline 36 one end, and the other end connects air valve 40, air valve 40 can be connected with extraneous air pump, and air valve 40 is for controlling distribution of gas power.When ventilating to the 4th pipeline 36, gas makes pneumatic piston decline and ejection thimble, thimble backs down check valve I, make hydraulic oil enter thimble groove by unloading port H and flow back to fuel tank through J and oil inlet A with one voice, gas is by cylinder in the first breather hole 21 ejection simultaneously, can also through the second breather hole 20 ejection inner casing, these can be that oil cylinder declines.Check valve can be made by linking springs below steel ball, can with reference to utility model patent 201420373531.0 about the more detailed structure of valve body.Valve body 32 can be fixed by screws on base 22.Sealing place L on valve body is the cutting hole that technique cutting pipeline needs to stay, and is finally closed in this hole again.
Fuel tank 34 is connected with air valve through the 3rd pipeline 37.Fuel tank 34 is arranged on the rear side of valve body 32 and oil pump 33, and its afterbody is also provided with free handle 39, free handle 39 is installed air valve 40.Fuel tank 34 afterbody is provided with gear, is arranged on gear both sides under free handle 39 by U-shaped beam, and U-shaped beam 42 inside has a clamp to be stuck on gear, clamp and handle 41 bar connecting, mentions handle 41 and U-shaped beam and free handle 39 can be made to rotate.Free handle 39 dependency structure is prior art.Below fuel tank 34, wheel 43 is also installed, moves integrally to facilitate jack.
The present embodiment just to the utility model design and explanations realizing, is not limited, and under the utility model design, the technical scheme converted without essence is still in protection domain.
Claims (5)
1. a Pneumahydraulic jack, comprises base, and base is provided with oil cylinder, valve body, oil pump and fuel tank, and fuel tank afterbody is provided with free handle, and free handle is provided with air valve, it is characterized in that:
Described oil cylinder comprises outer shell and is nested in the inner casing in outer shell, outer shell is arranged on base, base leaves oil-through hole, outer shell leaves the first annular ridge on the inwall at top, first annular ridge is coated with the first wear-resisting copper strips, leave the first circular groove above first annular ridge, in the first circular groove, be equipped with the first seal ring, below the first annular ridge, leave the first breather hole; Described inner casing leaves the second annular ridge on the outer wall of bottom, the second annular ridge is coated with the second wear-resisting copper strips, and the second circular groove is left in the below of the second annular ridge, is equipped with the second seal ring in the second circular groove;
The oil pipeline of described oil-through hole on base is connected with unloading port with the oil outlet of valve body, the oil inlet of valve body is connected with fuel tank through the first pipeline, the inlet line of oil suction on base of valve body is connected with oil pump, oil pump is connected with air valve through the second pipeline, fuel tank is connected with air valve through the 3rd pipeline, and the emptying piston of described first breather hole and valve body to be connected and through the 4th pipeline connection to air valve through the 4th pipeline.
2. Pneumahydraulic jack as claimed in claim 1, it is characterized in that, cylinder in first is nested with between described outer shell and inner casing, in described first, cylinder leaves the 3rd annular ridge on the outer wall of bottom, 3rd annular ridge is coated with the 3rd wear-resisting copper strips, the 3rd circular groove is left below 3rd annular ridge, the 3rd seal ring is equipped with in 3rd circular groove, in described first, cylinder leaves the 4th annular ridge on the inwall at top, 4th annular ridge is coated with the 4th wear-resisting copper strips, the 4th circular groove is provided with above 4th annular ridge, the 4th seal ring is equipped with in 4th circular groove, the second breather hole is left below 4th annular ridge.
3. Pneumahydraulic jack as claimed in claim 2, it is characterized in that, cylinder in second is also nested with between cylinder and inner casing in described first, in described second, cylinder leaves the 5th annular ridge on the outer wall of bottom, 5th annular ridge is coated with the 5th wear-resisting copper strips, the 5th circular groove is left below 5th annular ridge, the 5th seal ring is equipped with in 5th circular groove, in described second, cylinder leaves the 6th annular ridge on the inwall at top, 6th annular ridge is coated with the 6th wear-resisting copper strips, the 6th circular groove is provided with above 6th annular ridge, the 6th seal ring is equipped with in 6th circular groove, the 3rd breather hole is left below 6th annular ridge.
4. Pneumahydraulic jack as claimed in claim 2, it is characterized in that, in described first, cylinder bottom inside is provided with bracing ring.
5. Pneumahydraulic jack as claimed in claim 3, it is characterized in that, in described first, in cylinder and second, cylinder bottom inside is equipped with bracing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519891.7U CN204079360U (en) | 2014-09-11 | 2014-09-11 | A kind of Pneumahydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519891.7U CN204079360U (en) | 2014-09-11 | 2014-09-11 | A kind of Pneumahydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204079360U true CN204079360U (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420519891.7U Withdrawn - After Issue CN204079360U (en) | 2014-09-11 | 2014-09-11 | A kind of Pneumahydraulic jack |
Country Status (1)
| Country | Link |
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| CN (1) | CN204079360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271042A (en) * | 2014-09-11 | 2016-01-27 | 保定市南市区优特气动液压设备厂 | Pneumatic-hydraulic jack |
-
2014
- 2014-09-11 CN CN201420519891.7U patent/CN204079360U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271042A (en) * | 2014-09-11 | 2016-01-27 | 保定市南市区优特气动液压设备厂 | Pneumatic-hydraulic jack |
| CN105271042B (en) * | 2014-09-11 | 2018-02-13 | 保定市南市区优特气动液压设备厂 | A kind of Pneumahydraulic 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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150107 Effective date of abandoning: 20180213 |