CN108892067B - Novel pneumatic hydraulic jack - Google Patents
Novel pneumatic hydraulic jack Download PDFInfo
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- CN108892067B CN108892067B CN201810826019.XA CN201810826019A CN108892067B CN 108892067 B CN108892067 B CN 108892067B CN 201810826019 A CN201810826019 A CN 201810826019A CN 108892067 B CN108892067 B CN 108892067B
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- valve seat
- hydraulic oil
- control valve
- air inlet
- hydraulic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a novel pneumatic hydraulic jack, which mainly comprises: the device comprises a control handle, a lifting control connecting plate, an air inlet control valve seat, a falling control valve seat, a hydraulic oil tank vent valve, a pneumatic hydraulic pump assembly, a hydraulic oil cylinder, a hydraulic oil tank, a base, a supporting seat and a moving wheel; the hydraulic oil tank is fixedly connected with the air inlet control valve seat, the hydraulic oil tank vent valve and the return control valve seat through a pneumatic hydraulic pump assembly and is communicated with the oil tank vent valve seat, the air inlet control valve seat, the return control valve seat and the hydraulic oil cylinder through pipelines, the hydraulic oil cylinder is connected with the hydraulic oil tank through a high-pressure pipeline, the lifting control connecting plate is fixed above the air inlet control valve seat and the return control valve seat, and the control handle is installed on the lifting control connecting plate; the pneumatic hydraulic pump assembly is supplied with the independent air inlet control valve seat as a power source, the independent falling control valve seat is arranged, and the slow and fast two-stage reset needle valve is provided, so that the uniform descending is realized.
Description
Technical Field
The invention relates to the field of hydraulic jacks, in particular to a novel pneumatic hydraulic jack.
Background
The pneumatic hydraulic jack that has now on the market is various, but most all sizes are heavy, the transport is hard, it is inconvenient to take in and put, occupation space is great, and in the course of the work, the hydraulic oil velocity of flow is fast, the action is not steady when rising falls back, and because directly pressurize pneumatic hydraulic pump through oil pipe, there is the oil leak phenomenon, hydraulic tank also can be the open-type with the external world also because survey the slope in using and the handling engineering and produce the oil leak phenomenon, and pneumatic hydraulic jack most all is switch control switch fragile, can not reach hydraulic cylinder's stable rising and fall back.
Therefore, the novel pneumatic hydraulic jack which controls lifting and falling by utilizing a lever principle to control a lifting control valve and a falling control speed two-stage needle valve, has a small and exquisite structure and saves the storage space is a problem which needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
In view of the above, the invention provides a novel pneumatic hydraulic jack which utilizes the lever action of a handle to control an air inlet and a pressure release valve to adjust the lifting height, has a small structure and saves the accommodating space.
In order to achieve the purpose, the invention provides the following technical scheme:
a novel pneumatic hydraulic jack mainly comprises: the device comprises a control handle, a lifting control connecting plate, an air inlet control valve seat, a falling control valve seat, a hydraulic oil tank vent valve, a pneumatic hydraulic pump assembly, a hydraulic oil cylinder, a hydraulic oil tank, a base, a supporting seat and a moving wheel; the hydraulic oil tank is fixedly connected with the air inlet control valve seat, the hydraulic oil tank vent valve and the return control valve seat through a pneumatic hydraulic pump assembly, the oil tank vent valve seat, the air inlet control valve seat, the return control valve seat and the hydraulic oil cylinder are communicated through pipelines, the hydraulic oil cylinder is connected with the hydraulic oil tank through a high-pressure pipeline, the lifting control connecting plate is fixed above the air inlet control valve seat and the return control valve seat, and the control handle is installed on the lifting control connecting plate; the automatic lowering device is characterized in that an independent air inlet control valve seat is arranged to supply a pneumatic hydraulic pump assembly as a power source, the independent falling back control valve seat is arranged, and the automatic lowering device is provided with a slow and fast two-stage reset needle valve to realize uniform-speed falling.
Preferably, in the above new pneumatic hydraulic jack, the control handle has the quick-release connecting sleeve in the middle section, the quick-release thread at the end for quick installation and removal of the lifting combined control connecting plate, and the handle is provided with the handle sleeve at the handle end.
Preferably, in the above new pneumatic hydraulic jack, the end of the lift control link plate is provided with a control handle connection port with threads inside, the middle part of the lift control link plate is provided with a fixing pin for locking the lift control link plate, the fixing shaft fixes the up-and-down movement central point of the lift control link plate, and the front end of the lift control link plate is provided with a pressing plate for pressing down the two-stage reset needle valve and the hydraulic oil cylinder vent check valve.
Preferably, in the above new pneumatic hydraulic jack, the end of the air inlet control valve seat is provided with the compressed air inlet joint, the air inlet check valve is arranged in the air inlet control valve seat, the side surface of the air inlet control valve seat is provided with the pipeline installation joint, and the front end of the air inlet control valve seat is provided with the locking fixing pin hole.
Preferably, in the above new pneumatic hydraulic jack, the quick-slow resetting needle valve is arranged in the fall-back control valve seat, the hydraulic oil cylinder fall-back ventilation check valve, the hydraulic oil cylinder fall-back ventilation joint and the oil tank ventilation valve seat air pipeline joint are arranged at the tail end of the hydraulic oil cylinder fall-back ventilation check valve, and the lifting fall-back control connecting plate shaft hole is arranged at the tail end of the hydraulic oil cylinder fall-back ventilation check valve.
Preferably, in the above new pneumatic hydraulic jack, the oil tank vent valve seat is fixed to an upper end of the upper cover of the hydraulic oil tank, and the vent line is connected to the intake control valve seat and the drop-back control valve seat.
Preferably, in the above new pneumatic hydraulic jack, the hydraulic cylinder is provided with a base, which is fixedly connected to the hydraulic oil tank, and the front end of the base is provided with a support seat.
Preferably, in the new pneumatic hydraulic jack described above, the support base is provided with an axle, which is mounted in correspondence with the moving wheel.
Preferably, in the above new pneumatic hydraulic jack, the hydraulic cylinder is a multi-stage jack, and the face end is provided with an anti-slip groove.
Preferably, in the new pneumatic hydraulic jack, a heightening pad pier placing support is arranged at the tail end of the hydraulic oil tank.
According to the technical scheme, compared with the prior art, the needle valve in the air vent valve seat of the oil tank is opened after the compressed air connector is communicated with compressed air, so that the hydraulic oil tank is communicated with the outside, and the phenomenon that the lifting of the hydraulic oil cylinder is influenced because the oil supply of a pneumatic hydraulic pump assembly is insufficient due to the fact that the vacuum cannot be generated in the hydraulic oil tank when the hydraulic oil cylinder is lifted is prevented; the control handle opens the air inlet one-way valve through the handle pressing action, compressed air is dredged to the pneumatic pump assembly, hydraulic oil is pressurized and conveyed to the hydraulic cylinder through a high-pressure path, the effect of lifting the hydraulic cylinder is achieved, the flow of the compressed air entering the pneumatic pump assembly can be flexibly controlled through the force of manually pressing the control handle, the working speed control of the pneumatic pump assembly is achieved, and the hydraulic cylinder is lifted stably and has uniform speed; the independent fall-back control valve seat can effectively lock high-pressure oil pressure relief in the hydraulic cylinder and prevent self-fall, when the control handle is lifted, the front end of the lifting fall-back control connecting plate contacts the two-stage pressure relief needle valve and the oil cylinder ventilation one-way valve, high-pressure hydraulic oil in the oil cylinder is decompressed and flows back into the hydraulic oil tank along with the opening of the slow needle valve, after the oil cylinder ventilation one-way valve is opened, compressed air is conveyed into the hydraulic oil cylinder through a pipeline to press down and reset the hydraulic oil cylinder, when the control handle is continuously lifted, the front end of the connecting plate is controlled to continuously press down the quick valve of the two-stage return needle valve, complete decompression of the hydraulic oil in the oil cylinder is realized, the hydraulic oil; the control handle is pressed down in the descending process of the hydraulic cylinder, so that the hydraulic cylinder can be locked at any position, the hydraulic cylinder is prevented from being used and is stored and placed, hydraulic oil caused by the storage mode is leaked, two types of quick and slow falling control are achieved, the hydraulic cylinder is safer to use, the structure is exquisite, the occupied space is small, and the storage is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a front view of the fuel tank of the present invention with the fuel tank removed;
FIG. 2 is a rear view of the present invention;
fig. 3 is a top view of the present invention.
Referring to fig. 1-3, the novel pneumatic hydraulic jack of the present invention comprises the following specific components:
the device comprises a support base 1, a hydraulic oil cylinder 2, a vent pipe 3, a fall control valve seat 4, a reset needle valve 5, a fall control valve seat assembly, a shaft pin 7, an oil tank ventilation valve seat 8, a lifting control connecting plate 9, a fixing pin 10, an air inlet control valve seat 11, a compressed air joint 12, an air inlet check valve 13, a fixing screw 14, a hydraulic oil tank cover 15, a movable wheel 16, an oil cylinder base 17, a connecting bolt 18, a hydraulic oil tank 19, a heightening pad pier 20, a connecting sleeve 21, a control handle 22, a handle sleeve 23, a high-pressure oil pipe 24, an oil tank oil feeding pipe 25 and a pneumatic hydraulic pump 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a novel pneumatic hydraulic jack which is manually controlled to adjust the lifting height, has a small structure, does not leak laterally-inclined hydraulic oil and saves the accommodating space.
Referring to the attached drawings 1-3, the assembly structure of the novel pneumatic hydraulic jack disclosed by the invention is as follows:
the hydraulic oil tank 19 is connected with a pneumatic hydraulic pump 26, the hydraulic oil tank 19 is connected with the air inlet control valve seat 11 through the pneumatic hydraulic pump 26, and is simultaneously connected with the falling back control valve seat 6 and the oil tank ventilation valve seat 8; the air inlet control valve seat 11, the oil tank ventilation valve seat 8 and the falling back control valve seat 4 are connected with the hydraulic oil cylinder 2 through a ventilation pipe 3; the hydraulic oil cylinder 2 is connected with a hydraulic oil tank 19 through an oil tank internal high-pressure oil connecting pipe 24; the lifting control connecting plate 9 is fixed above the air inlet valve seat 11 and the falling control valve seat assembly 6, and the control handle 22 is arranged on the lifting control connecting plate 9 and is fixed through screwing; the lifting device is characterized in that an independent fall-back control valve seat 6 is arranged, and the lifting device is provided with a two-stage reset needle valve 5 to realize uniform lifting.
According to the invention, the product structure is improved, the manual control of the flow of compressed air into the pneumatic pump system is set, the flexible lifting of the height of the jack is realized, the two-stage control valve seat is independently and effectively controlled in the slow falling speed, the hydraulic oil is directly and circularly pressurized by pneumatic pressurization, the oil leakage problem caused by the abrasion of a sealing element is avoided, the structure is small and exquisite, the collection and the placement are convenient, and the occupied space is small.
In order to further optimize the technical scheme, a connecting sleeve 21 is arranged in the middle section of the control handle 22, a handle sleeve 23 is arranged at the handle end, and a quick-dismounting thread is arranged at the tail end of the connecting sleeve.
In order to further optimize the technical scheme, the front end of the lifting control connecting plate 9 is provided with a handle groove, a quick dismounting thread is arranged in the handle groove, and the rear end of the lifting control connecting plate is provided with a pressing plate.
In order to further optimize the above technical solution, the intake control valve seat 11 is provided with a one-way intake valve 13.
In order to further optimize the technical scheme, a return spring is arranged between the front end of the lifting control connecting plate 9 and the air inlet control valve seat 11 to provide elastic force for pressing and rebounding.
In order to further optimize the technical scheme, a hydraulic oil tank ventilation valve seat 8 is arranged on the hydraulic oil tank cover 15 and corresponds to the ventilation pipe 3.
In order to further optimize the technical scheme, the air inlet control valve seat 11 and the falling control valve seat 6 are provided with a lifting control connecting plate 9, a shaft pin 7 and a fixing pin 10.
In order to further optimize the technical scheme, a fast and slow reset needle valve 5 and an oil cylinder ventilation one-way valve 4 are arranged in the fall-back control valve seat 6 and correspond to the ventilation holes.
In order to further optimize the technical scheme, the hydraulic oil cylinder 2 is provided with a base 17 which is fixedly connected with a hydraulic oil tank 19, and the front end of the base 17 is provided with a movable wheel shaft fixing and supporting seat 1.
In order to further optimize the above technical solution, the moving wheel 16 is installed at the front end of the base 17, corresponding to the supporting seat 1.
In order to further optimize the technical scheme, the hydraulic oil cylinder 2 is controlled in a multi-stage mode, and an anti-skidding groove is formed in the face end.
In order to further optimize the technical scheme, the tail end of the hydraulic oil tank 19 is provided with a heightening pad pier 20.
In order to further optimize the technical scheme, when the hydraulic oil pressure control device works, compressed air enters the pneumatic hydraulic pump 26 through the air inlet check valve 13 in the air inlet control valve seat 11 by pressing the control handle 22 downwards to pressurize hydraulic oil in the hydraulic oil tank 19 continuously, the pressurized hydraulic oil is conveyed continuously into the hydraulic oil cylinder 2 through the high-pressure oil pipeline 24, so that the hydraulic oil cylinder 2 is lifted stably at a constant speed, when the required height is reached, the pneumatic hydraulic pump 26 stops working when the control handle 22 is lifted, the hydraulic oil cylinder 2 stops lifting, and the control handle 22 stops at the middle position under the action of a return spring; when the lifting control handle 22 is lifted to a proper height, the needle valve 5 and the cylinder ventilation one-way valve 4 are quickly and slowly returned by being pressed by the front end of the lifting control connecting plate 9, the hydraulic cylinder 2 slowly falls back, when the control handle 22 is continuously lifted, the quick falling needle valve 5 is completely opened, a large amount of hydraulic oil is discharged into the hydraulic oil tank 19, and quick falling is finished.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A novel pneumatic hydraulic jack mainly comprises: the device comprises a control handle, a lifting control connecting plate, an air inlet control valve seat, a falling control valve seat, a hydraulic oil tank vent valve, a pneumatic hydraulic pump assembly, a hydraulic oil cylinder, a hydraulic oil tank, a base, a supporting seat and a moving wheel; the hydraulic oil tank is fixedly connected with the air inlet control valve seat, the hydraulic oil tank vent valve and the return control valve seat through a pneumatic hydraulic pump assembly, the oil tank vent valve seat, the air inlet control valve seat, the return control valve seat and the hydraulic oil cylinder are communicated through pipelines, the hydraulic oil cylinder is connected with the hydraulic oil tank through a high-pressure pipeline, the lifting control connecting plate is fixed above the air inlet control valve seat and the return control valve seat, and the control handle is installed on the lifting control connecting plate; the automatic descending device is characterized in that an independent air inlet control valve seat is arranged to supply a pneumatic hydraulic pump assembly as a power source, an independent falling back control valve seat is arranged, and the automatic descending device is provided with a slow and fast two-stage reset needle valve to realize uniform descending; the tail end of the lifting control connecting plate is provided with a control handle connecting port, threads are arranged in the control handle connecting port, a fixing pin is arranged in the middle of the lifting control connecting plate to lock the lifting control connecting plate immovably, the fixing shaft is used for fixing the up-and-down movement central point of the lifting control connecting plate, and the front end of the lifting control connecting plate is provided with a pressing plate used for pressing down the two-stage reset needle valve and the hydraulic oil cylinder ventilation one-way; the tail end of the air inlet control valve seat is provided with a compressed air inlet joint, the interior of the air inlet control valve seat is provided with an air inlet one-way valve, the side surface of the air inlet control valve seat is provided with a pipeline installation joint, and the front end of the air inlet control valve seat is provided with a locking fixing pin hole; the hydraulic oil cylinder falling control device is characterized in that a quick and slow reset needle valve is arranged in the falling control valve seat, the hydraulic oil cylinder falling ventilation check valve, the hydraulic oil cylinder falling ventilation joint and the oil tank ventilation valve seat air pipeline joint are arranged at the tail end of the hydraulic oil cylinder falling ventilation check valve, and the lifting falling control connecting plate shaft hole is formed in the tail end of the hydraulic oil cylinder falling ventilation check valve.
2. The novel pneumatic hydraulic jack as claimed in claim 1, wherein the control handle has a quick-release connecting sleeve at the middle section, a quick-release screw thread at the end and a lifting combined control connecting plate for quick assembly and disassembly, and a handle sleeve at the handle end.
3. The pneumatic hydraulic jack as claimed in claim 1, wherein the tank vent valve seat is fixed to the upper end of the hydraulic tank cover, and a vent line is connected to the intake control valve seat and the drop control valve seat.
4. The novel pneumatic hydraulic jack as claimed in claim 1, wherein the hydraulic cylinder is provided with a base which is fixedly connected with the hydraulic oil tank, and a support seat is arranged at the front end of the base.
5. The new pneumatic hydraulic jack as claimed in claim 4, wherein the support base is provided with an axle mounted in correspondence with the moving wheel.
6. The novel pneumatic hydraulic jack as claimed in claim 1, wherein the hydraulic cylinder is a multi-stage jack, and the face end is provided with an anti-slip groove.
7. The novel pneumatic hydraulic jack as claimed in claim 1, wherein the end of the hydraulic oil tank is provided with a heightening pad pier placing support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826019.XA CN108892067B (en) | 2018-07-25 | 2018-07-25 | Novel pneumatic hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826019.XA CN108892067B (en) | 2018-07-25 | 2018-07-25 | Novel pneumatic hydraulic jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108892067A CN108892067A (en) | 2018-11-27 |
| CN108892067B true CN108892067B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810826019.XA Active CN108892067B (en) | 2018-07-25 | 2018-07-25 | Novel pneumatic hydraulic jack |
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| Country | Link |
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| CN (1) | CN108892067B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792554A (en) * | 2020-07-22 | 2020-10-20 | 李中留 | Strutting arrangement for mechanical maintenance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203112408U (en) * | 2013-01-28 | 2013-08-07 | 重庆长江预应力有限公司 | Hydraulic system for tensioning jack |
| CN103332630A (en) * | 2013-07-23 | 2013-10-02 | 常熟通润汽车零部件股份有限公司 | Hydraulic jack with automatic speed regulation function |
| CN203529856U (en) * | 2013-06-05 | 2014-04-09 | 杭州盈江机械制造有限公司 | Dual-purpose pneumatic and manual jack |
| CN204823989U (en) * | 2015-07-13 | 2015-12-02 | 杭州天恒机械有限公司 | Two oil return oil circuit jack |
| CN107032254A (en) * | 2016-02-03 | 2017-08-11 | 天津中德职业技术学院 | A kind of flexible jack based on pneumatics |
| CN109110480A (en) * | 2018-07-09 | 2019-01-01 | 同济大学 | A kind of quick cargo handling machinery equipment of clipping type |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206915656U (en) * | 2017-05-26 | 2018-01-23 | 杭州盈江机械制造有限公司 | The jacking oil pump of anti-oil return |
-
2018
- 2018-07-25 CN CN201810826019.XA patent/CN108892067B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203112408U (en) * | 2013-01-28 | 2013-08-07 | 重庆长江预应力有限公司 | Hydraulic system for tensioning jack |
| CN203529856U (en) * | 2013-06-05 | 2014-04-09 | 杭州盈江机械制造有限公司 | Dual-purpose pneumatic and manual jack |
| CN103332630A (en) * | 2013-07-23 | 2013-10-02 | 常熟通润汽车零部件股份有限公司 | Hydraulic jack with automatic speed regulation function |
| CN204823989U (en) * | 2015-07-13 | 2015-12-02 | 杭州天恒机械有限公司 | Two oil return oil circuit jack |
| CN107032254A (en) * | 2016-02-03 | 2017-08-11 | 天津中德职业技术学院 | A kind of flexible jack based on pneumatics |
| CN109110480A (en) * | 2018-07-09 | 2019-01-01 | 同济大学 | A kind of quick cargo handling machinery equipment of clipping type |
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| Publication number | Publication date |
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| CN108892067A (en) | 2018-11-27 |
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