CN214828658U

CN214828658U - Hydraulic lifting device with independent power unit

Info

Publication number: CN214828658U
Application number: CN202120873184.8U
Authority: CN
Inventors: 虞静凯; 方伦斌
Original assignee: Ningbo Guterrui Auto Parts Co ltd
Current assignee: Ningbo Guterrui Auto Parts Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-11-23
Anticipated expiration: 2031-04-26

Abstract

The utility model provides a hydraulic lifting device with independent power unit relates to hydraulic jack technical field, the utility model discloses a: hydraulic power unit and hydro-cylinder jack, the top front end of hydro-cylinder jack and hydraulic power unit's rear end fixed connection, the hydro-cylinder jack includes the outer tube, the top fixed mounting of outer tube has the top cap, the top outer wall of outer tube is pegged graft and is had first pin, one section outer wall movable mounting of first pin has the jump ring, just the one end fixed mounting that is close to the jump ring of first pin has flow control valve, through hydraulic power unit and the hydro-cylinder jack that sets up, has realized that the special power unit from the area can match the hydro-cylinder well, and flow control valve can regulate and control the hydraulic oil in the oil pipe when lifting operation simultaneously, avoids using the external hydraulic pressure pipeline of equivalent length and can provide suitable flow, and these two points are showing the security that has increased system and vehicle lifting operation.

Description

Hydraulic lifting device with independent power unit

Technical Field

The utility model relates to a hydraulic jack technical field especially relates to a hydraulic lifting device with independent power unit.

Background

Jacks are standard equipment for trailers and semi-trailers, typically at the front of the trailer. When the tractor vehicle or the tractor head is separated, the front half parts of the trailer and the semitrailer are supported by the jacks, and the jacks also need to be lifted and retracted in addition to the static supporting function; and secondly, the trailer and the semitrailer need to be balanced front and back.

However, in the prior art, when the hydraulic jack is used, the jack needs to be driven by a hydraulic pipe with a certain length arranged on a power unit in a vehicle, and the power and the flow of the hydraulic jack are large when the hydraulic jack is used usually, so that the auditing and descending speed of the hydraulic jack is too high, the operation safety of the vehicle is reduced in the lifting process, and meanwhile, part of trailers have no existing hydraulic jack power units, so that the corresponding hydraulic jack cannot be used.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, through hydraulic power device and hydro-cylinder jack, realized that the special power unit from the area can match the hydro-cylinder well, flow control valve can regulate and control the hydraulic oil in the oil pipe when lift operation simultaneously, avoid using external hydraulic pressure pipeline of considerable length and can provide suitable flow, and these two points are showing the security that has increased system and vehicle lift operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a hydraulic lifting device having an independent power unit, comprising: the hydraulic power device and the oil cylinder jack, the front end of the top of the oil cylinder jack is fixedly connected with the rear end of the hydraulic power device, the oil cylinder jack comprises an outer tube, a top cover is fixedly arranged at the top of the outer tube, a first pin is inserted into the outer wall of the top of the outer tube, a snap spring is movably arranged on one section of the outer wall of the first pin, and a section of the first pin close to the clamp spring is fixedly provided with a flow control valve, the inner part of the outer pipe is movably provided with an inner pipe, the inner part of the inner pipe is movably provided with a cylinder barrel, and both ends of the cylinder barrel are fixedly provided with oil pipes, the interior of the cylinder barrel is movably provided with a piston rod, and the top of the piston rod is fixedly provided with a piston, the top of the piston is fixedly provided with an oil cylinder tail cover, the bottom of the piston rod is fixedly provided with an oil cylinder front cover, and the bottom of the oil cylinder front cover is fixedly provided with an oil cylinder bottom nut.

Preferably, the bottom of inner tube is pegged graft and is had the second pin, just there is the bottom plate bottom of inner tube through second pin movable mounting, and the setting of second pin has made things convenient for bottom plate installation, change and dismantlement.

Preferably, the outer wall of the top of each oil pipe is inserted into the top of the outer pipe, the outer wall of the top of one of the oil pipes is communicated with one end of a flow control valve, and the flow control valve can control the flow of hydraulic oil in the oil pipe.

Preferably, a switch is fixedly mounted on a section of the flow control valve far away from the oil pipe, and the switch can conveniently control the start and stop of the flow control valve.

Preferably, the hydraulic power device includes the power unit fixing box, top one side fixed mounting of power unit fixing box has control switch, control switch's front end electric connection has the motor, the bottom fixed mounting of motor has the oil tank, just one side top fixed mounting of oil tank has central valve piece, and the drive of the hydraulic oil accessible motor in the oil tank is extracted to the oil pipe in.

Preferably, a power unit iron box cover is fixedly mounted at the front end of the power unit fixing box, and the power unit iron box cover protects components in the power unit fixing box from being damaged by external force.

Preferably, the top of the power unit fixing box is inserted with the outer wall of an oil pipe, and one end of each oil pipe is communicated with the top of the oil tank through a central valve block, so that oil leakage caused by looseness of the oil pipe arranged on the oil tank is avoided.

Preferably, the outer wall of the power unit fixing box and the top of the outer pipe are fixedly installed, and the power unit fixing box can lift along with the outer pipe, so that the phenomenon that the oil pipe is pulled to loosen is avoided.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model discloses in, through the hydraulic power device who sets up, realized hydraulic jack from taking hydraulic power device, satisfied that partial trailer does not have existing hydraulic jack power unit, also can use corresponding hydraulic jack.

2. The utility model discloses in, through the hydraulic power device and the hydro-cylinder jack that set up, realized that the special power unit from the area can match the hydro-cylinder well, the flow control valve can regulate and control the hydraulic oil in the oil pipe when lift operation simultaneously, avoid using external hydraulic pressure pipeline of considerable length and can provide suitable flow, and these two points are showing the security that has increased system and vehicle lift operation.

Drawings

Fig. 1 is a perspective view of a hydraulic lifting device with an independent power unit according to the present invention;

fig. 2 is an exploded view of a cylinder jack of a hydraulic lifting device with an independent power unit according to the present invention;

fig. 3 is an exploded view of a hydraulic power unit of a hydraulic lifting device with an independent power unit according to the present invention;

fig. 4 is a cross-sectional view of a contracted state of the hydraulic jack of the hydraulic lifting device with an independent power unit.

Illustration of the drawings:

40. a hydraulic power unit; 27. a cylinder jack; 1. a top cover; 2. an outer tube; 3. a cylinder barrel; 4. a tail cover of the oil cylinder; 5. a piston; 6. a piston rod; 7. a front cover of the oil cylinder; 8. an inner tube; 9. a base plate; 10. a first pin; 11. a flow control valve; 12. a clamp spring; 13. an oil pipe; 14. a nut at the bottom of the oil cylinder; 15. a second pin; 20. a power unit iron box cover; 21. an oil tank; 22. a central valve block; 23. a motor; 24. a switch; 25. a control switch; 26. and a power unit fixing box.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1, fig. 2 and fig. 4, the utility model provides a technical solution: a hydraulic lifting device having an independent power unit, comprising: the hydraulic power device 40 and the oil cylinder jack 27, the front end of the top of the oil cylinder jack 27 is fixedly connected with the rear end of the hydraulic power device 40, the oil cylinder jack 27 comprises an outer tube 2, a top cover 1 is fixedly installed at the top of the outer tube 2, a first pin 10 is inserted into the outer wall of the top of the outer tube 2, a snap spring 12 is movably installed on one section of outer wall of the first pin 10, a flow control valve 11 is fixedly installed at one end, close to the snap spring 12, of the first pin 10, an inner tube 8 is movably installed inside the outer tube 2, a cylinder barrel 3 is movably installed inside the inner tube 8, oil tubes 13 are fixedly installed at two ends of the cylinder barrel 3, a piston rod 6 is movably installed inside the cylinder barrel 3, a piston 5 is fixedly installed at the top of the piston rod 6, an oil cylinder tail cover 4 is fixedly installed at the top of the piston 5, an oil cylinder front cover 7 is fixedly installed at the bottom of the piston rod 6, an oil cylinder bottom nut 14 is fixedly installed at the bottom of the oil cylinder front cover 7, the bottom of the inner pipe 8 is inserted with a second pin 15, the bottom of the inner pipe 8 is movably provided with a bottom plate 9 through the second pin 15, the outer wall of the top of each oil pipe 13 is inserted with the top of the outer pipe 2, the outer wall of the top of one of the oil pipes 13 is communicated with one end of the flow control valve 11, and one section of the flow control valve 11 far away from the oil pipe 13 is fixedly provided with a switch 24.

The effect that its whole embodiment 1 reached is that, the hydro-cylinder is located inside the central authorities of inner tube 8, and the hydro-cylinder is vertical inversion, and piston rod 6 is down, and the hydro-cylinder tail-hood 4 on piston rod 6 top has welded a section pipe, installs on bottom plate 9 through first pin 10 in the pipe. A horizontal round pipe is welded on the front cover 7 of the oil cylinder and is arranged on the outer pipe 2 through a second pin 15. So, when the hydro-cylinder refuels in bottom oil pipe 13 department, when extending under the hydraulic pressure effect, inner tube 8 is overhanging, and bottom plate 9 pushes away outer tube 2 and trailer frame after falling to the ground and rises, on the contrary, when the hydro-cylinder shrink, the inner tube 8 stretches out the part and reduces, and hydraulic jack will contract the height. Meanwhile, the flow control valve 11 is used for regulating and controlling the hydraulic oil flowing in the oil pipe 13, so that the phenomenon that the flow of the hydraulic oil is too large in the extraction process is avoided, and the accident of lifting operation caused by damage of the oil cylinder is avoided.

Embodiment 2, as shown in fig. 1 and 3, the hydraulic power device 40 includes a power unit fixing box 26, a control switch 25 is fixedly mounted on one side of the top of the power unit fixing box 26, the front end of the control switch 25 is electrically connected with a motor 23, the bottom of the motor 23 is fixedly mounted with an oil tank 21, a central valve block 22 is fixedly mounted on the top of one side of the oil tank 21, a power unit iron tank cover 20 is fixedly mounted on the front end of the power unit fixing box 26, the top of the power unit fixing box 26 is inserted with the outer wall of an oil pipe 13, and one end of each oil pipe 13 is communicated with the top of the oil tank 21 through the central valve block 22, and the outer wall of the power unit fixing box 26 is fixedly mounted on the top of the outer pipe 2.

The effect that its whole embodiment 2 reaches is that center valve block 22 is the oil circuit, and the valve etc. are integrated in center valve block 22, and motor 23 is dc motor, and the switch 24 and the external control switch 25 of motor 23 constitute, and this kind of simplification constitutes the dc hydraulic power unit who is suitable for the single-purpose. Because the power unit is an independent system and needs to be integrated with the hydraulic jack, the hydraulic oil in the oil tank 21 can be pumped into the oil pipe 13 through the motor 23 and then led into the cylinder 3, and the control of the hydraulic jack is realized.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. A hydraulic lifting device having an independent power unit, comprising: hydraulic power unit (40) and hydro-cylinder jack (27), its characterized in that: the front end of the top of the oil cylinder jack (27) is fixedly connected with the rear end of the hydraulic power device (40);

the oil cylinder jack (27) comprises an outer tube (2), a top cover (1) is fixedly mounted at the top of the outer tube (2), a first pin (10) is inserted into the outer wall of the top of the outer tube (2), a clamp spring (12) is movably mounted on one outer wall of the first pin (10), a flow control valve (11) is fixedly mounted at one end, close to the clamp spring (12), of the first pin (10), an inner tube (8) is movably mounted inside the outer tube (2), a cylinder barrel (3) is movably mounted inside the inner tube (8), oil pipes (13) are fixedly mounted at two ends of the cylinder barrel (3), a piston rod (6) is movably mounted inside the cylinder barrel (3), a piston (5) is fixedly mounted at the top of the piston rod (6), an oil cylinder tail cover (4) is fixedly mounted at the top of the piston rod (5), and an oil cylinder front cover (7) is fixedly mounted at the bottom of the piston rod (6), and an oil cylinder bottom nut (14) is fixedly arranged at the bottom of the oil cylinder front cover (7).

2. A hydraulic lifting device with an independent power unit as set forth in claim 1, characterized in that: the bottom of the inner pipe (8) is inserted with a second pin (15), and the bottom of the inner pipe (8) is movably provided with a bottom plate (9) through the second pin (15).

3. A hydraulic lifting device with an independent power unit as set forth in claim 1, characterized in that: the outer wall of the top of each oil pipe (13) is connected with the top of the outer pipe (2) in an inserting mode, and the outer wall of the top of one of the oil pipes (13) is communicated with one end of the flow control valve (11).

4. A hydraulic lifting device with an independent power unit as set forth in claim 1, characterized in that: and a switch (24) is fixedly arranged on one section of the flow control valve (11) far away from the oil pipe (13).

5. A hydraulic lifting device with an independent power unit as set forth in claim 1, characterized in that: hydraulic power unit (40) include power unit fixed box (26), top one side fixed mounting of power unit fixed box (26) has control switch (25), the front end electric connection of control switch (25) has motor (23), the bottom fixed mounting of motor (23) has oil tank (21), just one side top fixed mounting of oil tank (21) has central valve piece (22).

6. A hydraulic lifting device with an independent power unit according to claim 5, characterized in that: the front end of the power unit fixing box (26) is fixedly provided with a power unit iron box cover (20).

7. A hydraulic lifting device with an independent power unit according to claim 5, characterized in that: the top of the power unit fixing box (26) is inserted with the outer wall of an oil pipe (13), and one end of each oil pipe (13) is communicated with the top of the oil tank (21) through a central valve block (22).

8. A hydraulic lifting device with an independent power unit according to claim 5, characterized in that: the outer wall of the power unit fixing box (26) is fixedly installed with the top of the outer pipe (2).