CN113683003A

CN113683003A - High-stability jack capable of lifting in two stages

Info

Publication number: CN113683003A
Application number: CN202110989874.4A
Authority: CN
Inventors: 郝健; 郑子龙; 龙涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-11-23

Abstract

The invention discloses a high-stability jack capable of lifting in two stages, which comprises a base oil cylinder, a piston cylinder and an installation cylinder, wherein the piston cylinder and the installation cylinder are fixedly connected to the top of the base oil cylinder, a pipeline III with a check valve function is communicated between the installation cylinder and the base oil cylinder, a pipeline IV is communicated between the base oil cylinder and the piston cylinder, a check valve flowing from the base oil cylinder to the interior of the piston cylinder is arranged in the pipeline IV, a pipeline I is communicated between the piston cylinder and the installation cylinder, the check valve flowing from the interior of the piston cylinder to the interior of the installation cylinder is arranged on the inner wall of the pipeline I, a fixed cylinder is fixedly connected to the inner bottom of the installation cylinder, a separation ring is fixedly connected between the inner wall of the installation cylinder and the outer wall of the fixed cylinder, which is close to the top, a piston cylinder is slidably connected to the inner wall of the fixed cylinder, and a piston rod is slidably connected to the inner wall of the piston cylinder. The invention realizes the gradual jacking and can independently control the final stage to carry out the rapid jacking through the matching of the structures.

Description

High-stability jack capable of lifting in two stages

Technical Field

The invention relates to the technical field of jacks, in particular to a high-stability jack capable of lifting in two stages.

Background

The jack comprises a mechanical jack and a hydraulic jack, the hydraulic jack is used as an intermediate medium in a hydraulic transmission system, plays a role in transferring and converting energy, and plays roles in lubricating, preventing corrosion, cooling, flushing and the like among all components in the hydraulic system when in use.

The existing hydraulic jack has unsatisfactory short-distance jacking effect, and the hydraulic jack with two lifting poles cannot realize independent control.

Therefore, the invention provides a high-stability jack capable of lifting in two stages.

Disclosure of Invention

The invention aims to provide a high-stability jack capable of lifting in two stages, which has the advantages of realizing stage-by-stage jacking and being capable of independently controlling the final stage to carry out quick jacking and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a but high stability type jack of two-stage lift, includes base hydro-cylinder and fixed connection at base hydro-cylinder top piston cylinder and installation cylinder, still includes that the intercommunication has the pipeline three that has the check valve function between installation cylinder and the base hydro-cylinder, and the intercommunication has pipeline four between base hydro-cylinder and the piston cylinder, and four internally mounted of pipeline have from the inside check valve of base hydro-cylinder flow direction piston cylinder, the intercommunication has pipeline one between piston cylinder and the installation cylinder, and the inner wall setting of pipeline one is from the inside check valve of piston cylinder flow direction installation cylinder, the interior bottom fixedly connected with solid fixed cylinder of installation cylinder, fixedly connected with spacer ring between the outer wall that installation cylinder inner wall and solid fixed cylinder are close to the top, gu fixed cylinder inner wall sliding connection has a piston cylinder, the inner wall sliding connection of piston cylinder has the piston rod.

And the outer wall of the fixed cylinder is provided with a fourth through hole communicated with the inside of the installation cylinder.

The oil feeding mechanism is used for pressing hydraulic oil in the piston cylinder into the bottom in the fixed cylinder through a first pipeline.

Preferably, the oil feeding mechanism comprises a piston plate, the piston plate is connected to the inner wall, close to the top, of the piston cylinder in a sliding mode, a rack is fixedly connected to the bottom of the piston plate, a limiting column is rotatably connected between the front inner wall and the rear inner wall of the piston cylinder through a pin shaft, the inner wall, close to the limiting column, of the piston cylinder is a cambered surface, the cambered surface is matched with the outer wall of the limiting column, an oil feeding groove passing through the axis is formed in the outer wall of the limiting column, the oil feeding groove is slightly communicated with the first pipeline, the diameter of the oil feeding groove is smaller than the inner diameter of the first pipeline, an incomplete gear is fixedly connected to the end portion of the limiting column, and the incomplete gear is meshed with the rack.

Preferably, the top fixedly connected with transfer line of piston plate, the transfer line run through the top of piston cylinder and with run through department sliding connection, one side at piston cylinder top articulates there is the telelever, the spout has been seted up to the inner wall of telelever, the inside sliding connection of round pin axle and spout is passed through at the top of transfer line.

Preferably, the outer wall of the piston cylinder is provided with a first through hole, the outer wall of the fixed cylinder below the separating ring is provided with a fifth through hole, and the vertical distance between the fifth through hole and the first through hole is the maximum jacking distance of the piston cylinder.

Preferably, the inner wall of the mounting cylinder above the separating ring is fixedly connected with a top plate.

Preferably, a second pipeline is communicated between the piston cylinder above the first pipeline and the mounting cylinder, a check valve flowing from the inside of the piston cylinder to the inside of the mounting cylinder is arranged on the inner wall of the second pipeline, a separation hoop is fixedly connected between the inner wall of the mounting cylinder, which is close to the communication part of the second pipeline, and the outer wall of the piston cylinder, the separation hoop is an arc-shaped hoop and is used for separating an independent chamber from a region between the mounting cylinder and the piston cylinder, a third through hole and a second through hole are respectively formed in the outer walls of the fixing cylinder and the piston cylinder, the third through hole and the second through hole are both lower than the vertical height of the first through hole, and the third through hole is higher than the second through hole in an initial state.

Preferably, a plurality of limiting blocks are fixedly connected to the inner wall of the fixed cylinder below the piston cylinder, and the limiting blocks can also be annular.

Preferably, the inner wall of the piston cylinder above the limiting column is fixedly connected with a limiting plate, and the rack penetrates through the top of the limiting plate and is in sliding connection with the penetrating position.

Compared with the prior art, the invention has the following beneficial effects:

the oil supply mechanism is arranged, so that short-distance single-stage jacking can be conveniently carried out, step-by-step jacking can be carried out, the last-stage piston rod can pass over the first stage to be independently controlled, the independent control speed is higher than that of normal step-by-step jacking, and the applicability is strong.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a schematic left side view of the present invention;

FIG. 3 is a schematic structural front view of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 5 is a schematic view of a state diagram of the present invention when traversing a pipeline;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 3 in accordance with the present invention;

fig. 7 is a perspective view of the separation band of the present invention.

In the figure: 1. a base cylinder; 2. a piston cylinder; 3. mounting the cylinder; 4. a transmission rod; 5. a first pipeline; 6. a second pipeline; 7. a third pipeline; 8. a piston rod; 9. a remote lever; 10. a piston plate; 11. a limiting plate; 12. a rack; 13. an incomplete gear; 14. a limiting column; 15. a fourth pipeline; 16. a top plate; 17. a spacer ring; 18. a piston cylinder; 19. a fixed cylinder; 20. an oil supply groove; 21. a first through hole; 22. a separation hoop; 23. a limiting block; 24. a second through hole; 25. a third through hole; 26. a fourth through hole; 27. and a fifth through hole.

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.

Referring to fig. 1 to 7, the present invention provides a technical solution: a high-stability jack capable of lifting in two stages comprises a base oil cylinder 1, a piston cylinder 2 and an installation cylinder 3 which are fixedly connected to the top of the base oil cylinder 1, a pipeline III 7 with a check valve function is communicated between the installation cylinder 3 and the base oil cylinder 1, a pipeline IV 15 is communicated between the base oil cylinder 1 and the piston cylinder 2, and a one-way valve which flows from the base oil cylinder 1 to the interior of the piston cylinder 2 is arranged in the pipeline four 15, above being prior art, the intercommunication has pipeline one 5 between piston cylinder 2 and the installation cylinder 3, and the inner wall setting of pipeline one 5 is from the inside check valve that flows to the installation cylinder 3 inside of piston cylinder 2, the interior bottom fixedly connected with solid fixed cylinder 19 of installation cylinder 3, fixedly connected with spacer ring 17 between the outer wall at installation cylinder 3 inner wall and solid fixed cylinder 19 near the top, solid fixed cylinder 19 inner wall sliding connection has piston cylinder 18, the inner wall sliding connection of piston cylinder 18 has piston rod 8.

The outer wall of the fixed cylinder 19 is provided with a through hole four 26 communicated with the inside of the installation cylinder 3.

When the check valve is started, the communication between the base oil cylinder 1 and the mounting cylinder 3 is disconnected, an outer chamber is formed between the inner bottom of the mounting cylinder 3 and the outer wall of the fixed cylinder 19, an inner chamber is formed between the inner bottom of the piston cylinder 18 and the inner bottom of the fixed cylinder 19, the two chambers can be communicated by forming the fourth through hole 26, so that hydraulic oil in the outer chamber can conveniently enter the inner chamber through the fourth through hole 26, and the piston cylinder 18 is jacked.

The hydraulic oil pump further comprises an oil feeding mechanism which is used for pressing hydraulic oil in the piston cylinder 2 into the bottom in the fixed cylinder 19 through a first pipeline 5.

Further, the oil feeding mechanism includes a piston plate 10, the piston plate 10 is connected to the inner wall of the piston cylinder 2 close to the top in a sliding mode, the bottom fixedly connected with rack 12 of the piston plate 10, a limit post 14 is connected between the front inner wall and the rear inner wall of the piston cylinder 2 in a rotating mode through a pin shaft, the inner wall of the piston cylinder 2 close to the limit post 14 is a cambered surface, the cambered surface is matched with the outer wall of the limit post 14, an oil feeding groove 20 passing through the shaft center is formed in the outer wall of the limit post 14, the oil feeding groove 20 is slightly communicated with the pipeline one 5, the diameter of the oil feeding groove 20 is smaller than the inner diameter of the pipeline one 5, the end fixedly connected with an incomplete gear 13 of the limit post 14, and the incomplete gear 13 is connected with the rack 12 in a meshing mode.

Through making piston plate 10 lapse, drive rack 12 lapse, because rack 12 and incomplete gear 13's meshing relation, thereby make spacing post 14 clockwise rotation, then make inside hydraulic oil accessible pipeline 5 of piston cylinder 2 get into installation section of thick bamboo 3 inside, because the spacer ring 17 is to the inside separation of installation section of thick bamboo 3, thereby make hydraulic oil push up piston cylinder 18 and slightly rise, thereby it rises to drive piston rod 8, then realize slight one-level jacking, realize the function that the short distance rises, the effect of accurate jacking has.

Further, the top fixedly connected with transfer line 4 of piston board 10, transfer line 4 run through the top of piston cylinder 2 and with run through department sliding connection, one side at 2 tops of piston cylinder articulates there is remote lever 9, the spout has been seted up to the inner wall of remote lever 9, the inside sliding connection of round pin axle and spout is passed through at the top of transfer line 4.

Through the cooperation of spout, round pin axle and transfer line 4 to can more effectual realization press, light convenient realization oiling.

Through the cooperation of the rack 12, the incomplete gear 13 and the limiting column 14, the manual oil feeding of the control jack can be realized, and the process is smooth and easy and is convenient to use.

In the process of clockwise rotation of the limiting column 14, the communication range of the limiting column 14 and the pipeline one 5 is larger, and when the descending speed of the transmission rod 4 is the same, the speed of hydraulic oil passing through the pipeline one 5 is different, so that the more downwards the remote rod 9 is pressed, the easier the remote rod is, and the labor is saved.

Furthermore, the outer wall of the piston cylinder 18 is provided with a first through hole 21, the outer wall of the fixed cylinder 19 below the separating ring 17 is provided with a fifth through hole 27, and the vertical distance between the fifth through hole 27 and the first through hole 21 is the maximum jacking distance of the piston cylinder 18.

When continuously keeping pressing of certain degree for when piston cylinder 18 rose to the biggest jacking distance, through-hole 21 can and through-hole five 27 intercommunications, continues to press the remote lever 9, thereby makes hydraulic oil can get into the cavity that piston rod 8 and piston cylinder 18 constitute through-hole five 27 and through-hole 21, thereby realizes the jacking of piston rod 8, and the one-level jacking that is stronger than piston cylinder 18 is lifted to the short distance jacking of piston rod 8, slightly presses and to realize accurate jacking equally.

Furthermore, a top plate 16 is fixedly connected to the inner wall of the cylinder 3 above the spacer ring 17, and the top plate 16 is arranged to limit the movement of the piston cylinder 18, that is, when the top of the piston cylinder 18 moves to the bottom of the top plate 16, the piston cylinder 18 moves to the maximum jacking distance.

Further, a second pipeline 6 is communicated between the piston cylinder 2 above the first pipeline 5 and the mounting cylinder 3, a check valve which flows from the inside of the piston cylinder 2 to the inside of the mounting cylinder 3 is arranged on the inner wall of the second pipeline 6, a separation hoop 22 is fixedly connected between the inner wall of the mounting cylinder 3 close to the communication position of the second pipeline 6 and the outer wall of the piston cylinder 18, as shown in fig. 7, the separation hoop 22 is an arc-shaped hoop and is used for separating an independent chamber from the area between the mounting cylinder 3 and the piston cylinder 18, a third through hole 25 and a second through hole 24 are respectively formed in the outer walls of the fixed cylinder 19 and the piston cylinder 18, the third through hole 25 and the second through hole 24 are both lower than the vertical height of the first through hole 21, and the third through hole 25 is higher than the second through hole 24 in the initial state.

When rapid short-distance jacking is needed, the transmission rod 4 can be lowered to the lowest position by pressing the remote rod 9 to the maximum extent, namely the bottom of the piston plate 10 butts against the top of the limiting plate 11, in the process, the oil feeding groove 20 is communicated with the pipeline I5 before the pipeline I5, so that the piston cylinder 18 sequentially ascends in a short distance, the short-distance ascending of the piston cylinder 18 enables the through hole II 24 to be communicated with the through hole III 25, then the oil feeding groove 20 is communicated with the pipeline II 6 after crossing the pipeline I5, the limiting column 14 forms sealing closure on the pipeline I5, at the moment, hydraulic oil only enters a chamber formed by the separation hoop 22, the piston cylinder 18 and the mounting cylinder 3 through the pipeline II 6 and then enters the inner bottom of the piston cylinder 18 through the through hole II 24 and the through hole III 25, so as to complete the primary jacking of the piston rod 8, and then the remote rod 9 can be pressed up and down in a reciprocating manner on the basis of crossing the pipeline I5, the through holes II 24 and the through holes III 25 are ensured to be communicated all the time, so that the piston rod 8 is quickly jacked, the oil feeding amount is certain, the oil duct is small, the lifting is quick, and the quick jacking can be carried out by controlling the second stage independently.

This is the setting of crossing the relation, under other environment, can be through setting up oil duct and oil feed volume groove to make and realize the biggest distance jacking to piston rod 8 through once crossing.

The oil supply quantity can be reduced to a large extent, and the oil supply quantity is equivalent to the size of the inner diameter of the piston cylinder 2 in the scheme, so that short-distance and accurate oil supply can be realized.

Through setting over, at spacing post 14 clockwise turning's in-process, spacing post 14 is bigger with pipeline 5's intercommunication scope, when the speed that transfer line 4 descends is the same, the speed that hydraulic oil passes through pipeline 5 is different, make to press the remote lever 9 more light more downwards, before crossing pipeline 5, the speed can accelerate again, then when communicateing with pipeline two 6, it has just begun slowly to seal pipeline 5 this moment, lead to the intercommunication with pipeline two 6 less, thereby make the flow rate in the oil feed groove 20 accelerate to the biggest, the user feels the resistance great this moment, consequently when the resistance is the biggest, the user can feel whether cross the limit, carry out independent control to the second grade jacking.

Further, a plurality of stopper 23 of the fixed cylinder 19's of piston cylinder 18 below inner wall fixedly connected with, stopper 23 also can be cyclic annular, and stopper 23 is used for the spacing to piston cylinder 18, prevents that piston cylinder 18 from dropping to the interior bottom of fixed cylinder 19, also can be when the pressure release, through the removal of observing piston rod 8, and the person of facilitating the use knows piston cylinder 18 and resets successfully.

Further, the inner wall fixedly connected with limiting plate 11 of spacing post 14 top piston cylinder 2, rack 12 run through the top of limiting plate 11 and with run through a sliding connection, through setting up limiting plate 11, in order to form supplementary spacing to rack 12, owing to surpass the biggest formation, spacing post 14 can seal pipeline one 5 and pipeline two 6 to make piston cylinder 2 form sealed, can't press, thereby can restrict the emergence of biggest shape journey, prevent that the user from exerting oneself and violently leading to the injury.

In all the processes, the lifting of the transmission rod 4 can realize the pumping of the hydraulic oil from the inside of the base oil cylinder 1 through the pipeline four 15 and the one-way valve inside the base oil cylinder to supplement the hydraulic oil inside the piston cylinder 2.

When pressure relief is needed, only the check valve of the pipeline III 7 needs to be opened, and the base oil cylinder 1 is communicated with the installation cylinder 3.

Through the cooperation of above-mentioned isotructure, realize jacking step by step and can independent control final stage carry out quick jacking.

The working principle is as follows: the check valve in the third pipeline 7 is closed, the communication between the installation cylinder 3 and the base oil cylinder 1 is disconnected, the remote rod 9 is slightly pressed, the transmission rod 4 is made to drive the piston plate 10 and the rack 12 to move downwards, due to the meshing relation of the rack 12 and the incomplete gear 13, the limiting column 14 is made to rotate clockwise, then hydraulic oil in the piston cylinder 2 can enter the installation cylinder 3 through the first pipeline 5, due to the separation of the separation ring 17 on the inside of the installation cylinder 3, the hydraulic oil slightly rises against the piston cylinder 18, the piston rod 8 is driven to rise, then slight one-level jacking is achieved, the functions of slight oil feeding and short-distance lifting are achieved, and the accurate jacking effect is achieved.

When the remote lever 9 is used for controlling the transmission rod 4 to move up and down for a short distance, the jacking distance can be accurately controlled.

When piston cylinder 18 rose to the maximum distance, piston cylinder 18's top can support roof 16 promptly, and five 27 and 21 intercommunications of through-hole continue to press remote lever 9 this moment to make hydraulic oil can get into the cavity that piston rod 8 and piston cylinder 18 constitute through five 27 and 21 of through-hole, thereby realize the jacking of piston rod 8, the one-level jacking that the short distance jacking of piston rod 8 is stronger than piston cylinder 18 slightly presses and can realize accurate jacking equally.

The above is normal use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a but high stability type jack of two-stage lift, including base hydro-cylinder (1) and fixed connection at base hydro-cylinder (1) top piston cylinder (2) and installation section of thick bamboo (3), still including the intercommunication have pipeline three (7) that have the check valve function between installation section of thick bamboo (3) and base hydro-cylinder (1), the intercommunication has pipeline four (15) between base hydro-cylinder (1) and piston cylinder (2), and pipeline four (15) internally mounted has from base hydro-cylinder (1) to the inside check valve of piston cylinder (2), its characterized in that: a first pipeline (5) is communicated between the piston cylinder (2) and the mounting cylinder (3), a one-way valve flowing from the interior of the piston cylinder (2) to the interior of the mounting cylinder (3) is arranged on the inner wall of the first pipeline (5), a fixed cylinder (19) is fixedly connected to the inner bottom of the mounting cylinder (3), a separation ring (17) is fixedly connected between the inner wall of the mounting cylinder (3) and the outer wall, close to the top, of the fixed cylinder (19), a piston cylinder (18) is connected to the inner wall of the fixed cylinder (19) in a sliding manner, and a piston rod (8) is connected to the inner wall of the piston cylinder (18) in a sliding manner;

the outer wall of the fixed cylinder (19) is provided with a through hole IV (26) communicated with the inside of the installation cylinder (3);

the hydraulic oil press-in device further comprises an oil feeding mechanism which is used for pressing hydraulic oil in the piston cylinder (2) into the bottom in the fixed cylinder (19) through a first pipeline (5).

2. A two-stage liftable high-stability jack according to claim 1, wherein: the oil feeding mechanism comprises a piston plate (10), the piston plate (10) is connected to the inner wall, close to the top, of a piston cylinder (2) in a sliding mode, a rack (12) is fixedly connected to the bottom of the piston plate (10), a limiting column (14) is connected between the front inner wall and the rear inner wall of the piston cylinder (2) in a rotating mode through a pin shaft, the inner wall, close to the limiting column (14), of the piston cylinder (2) is an arc surface, the arc surface is matched with the outer wall of the limiting column (14), an oil feeding groove (20) passing through the shaft center is formed in the outer wall of the limiting column (14), the oil feeding groove (20) is slightly communicated with a pipeline I (5), the diameter of the oil feeding groove (20) is smaller than the inner diameter of the pipeline I (5), an incomplete gear (13) is fixedly connected to the end portion of the limiting column (14), and the incomplete gear (13) is connected with the rack (12) in a meshing mode.

3. A two-stage liftable high-stability jack according to claim 2, wherein: the top fixedly connected with transfer line (4) of piston board (10), transfer line (4) run through the top of piston cylinder (2) and with run through a sliding connection, one side at piston cylinder (2) top articulates there is telerod (9), the spout has been seted up to the inner wall of telerod (9), the inside sliding connection of round pin axle and spout is passed through at the top of transfer line (4).

4. A two-stage liftable high-stability jack according to claim 1, wherein: the outer wall of the piston cylinder (18) is provided with a first through hole (21), the outer wall of the fixed cylinder (19) below the separating ring (17) is provided with a fifth through hole (27), and the vertical distance between the fifth through hole (27) and the first through hole (21) is the maximum jacking distance of the piston cylinder (18).

5. A two-stage liftable high-stability jack according to claim 4, wherein: the inner wall of the mounting cylinder (3) above the separating ring (17) is fixedly connected with a top plate (16).

6. A two-stage liftable high-stability jack according to claim 1, wherein: a second pipeline (6) is communicated between the piston cylinder (2) above the first pipeline (5) and the mounting cylinder (3), the inner wall of the second pipeline (6) is provided with a one-way valve which flows from the interior of the piston cylinder (2) to the interior of the mounting cylinder (3), a separation hoop (22) is fixedly connected between the inner wall of the installation cylinder (3) close to the communication part of the second pipeline (6) and the outer wall of the piston cylinder (18), the separation hoop (22) is an arc-shaped hoop, for separating the region between the mounting cylinder (3) and the piston cylinder (18) into separate chambers, the outer walls of the fixed cylinder (19) and the piston cylinder (18) are respectively provided with a through hole III (25) and a through hole II (24), the third through hole (25) and the second through hole (24) are both lower than the vertical height of the first through hole (21), the height of the third through hole (25) is larger than that of the second through hole (24) in the initial state.

7. A two-stage liftable high-stability jack according to claim 4, wherein: the inner wall of the fixed cylinder (19) below the piston cylinder (18) is fixedly connected with a plurality of limiting blocks (23), and the limiting blocks (23) can also be annular.

8. A two-stage liftable high-stability jack according to claim 2, wherein: the inner wall of the piston cylinder (2) above the limiting column (14) is fixedly connected with a limiting plate (11), and the rack (12) penetrates through the top of the limiting plate (11) and is in sliding connection with the penetrating position.