CN218434689U

CN218434689U - Jacking tool

Info

Publication number: CN218434689U
Application number: CN202222322116.XU
Authority: CN
Inventors: 江巍; 宣煜森
Original assignee: Shanghai Sany Heavy Machinery Co Ltd
Current assignee: Shanghai Sany Heavy Machinery Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-02-03
Anticipated expiration: 2032-08-31

Abstract

The utility model relates to a spare part replacement frock technical field provides a jacking frock, including oil pan supporting part and jacking drive division. The oil pan supporting part is matched with the bolt connecting end of the engine oil pan. The jacking driving part is connected with the oil pan supporting part. The jacking driving part drives the oil pan supporting part to lift between a supporting state and a separating state. Under the supporting state, the oil pan supporting part lifts and supports the engine oil pan; in the separated state, the oil pan support portion is separated from the engine oil pan. Through this kind of structure setting, use jacking drive division drive oil pan supporting part to switch between support state and detached state to the staff changes rubber shock absorber, can promote rubber shock absorber's change simple operation nature. The bolt connection end of the oil pan supporting part and the engine oil pan is set to be mutually matched, so that the engine oil pan can be effectively prevented from being damaged by powerful jacking, and the engine is effectively protected.

Description

Jacking tool

Technical Field

The utility model relates to a spare part replacement frock technical field especially relates to a jacking frock.

Background

The engine is the primary source of power for the work machine. Work machines are often subjected to vibrations during operation. In order to reduce the vibration damage to the engine, a rubber shock absorber is required to be installed on the engine. In the use, need often change rubber shock absorber to guarantee rubber shock absorber's shock attenuation effect, and then effectively protect the engine.

At present, a jacking tool is generally used for lifting an engine so as to replace a rubber shock absorber. The oil pan of jacking engine is lifted to the most direct lift of current jacking frock because the oil pan of engine is thinner, intensity is relatively poor, and this kind of jacking frock causes the damage of engine easily when the engine is lifted in the jacking.

SUMMERY OF THE UTILITY MODEL

The utility model provides a jacking frock for solve the problem that current jacking frock damaged the engine easily when the engine is lifted in the jacking.

According to the utility model provides a pair of jacking frock, include: an oil pan supporting part and a jacking driving part.

The oil pan supporting part is matched with the bolt connecting end of the engine oil pan. The jacking driving part is connected with the oil pan supporting part. The jacking driving part drives the oil pan supporting part to lift between a supporting state and a separating state. In the supporting state, the oil pan supporting part supports and supports the engine oil pan in a lifting manner; in the separated state, the oil pan support portion is separated from the engine oil pan.

According to the utility model provides a pair of jacking frock, the oil pan supporting part includes first supporting part and second supporting part. The jacking driving part comprises a first driving part and a second driving part. The first supporting part is connected with the first driving part. The second supporting part is connected with the second driving part. The first driving part and the second driving part respectively drive the first supporting part and the second supporting part to lift.

According to the utility model provides a pair of jacking frock, jacking frock includes the frock support body. The tool frame body comprises a workbench. A first base and a second base are arranged on the workbench. The first support portion and the first driving portion are disposed on the first base. The second base is connected with the workbench in a sliding mode. The second supporting part and the second driving part are arranged on the second base connection.

According to the utility model provides a pair of jacking frock, be provided with the slider on the second base. The workbench is provided with a sliding chute. The sliding block is matched with the sliding groove. The slider is slidably mounted into the chute.

According to the utility model provides a pair of jacking frock, be connected with the slip drive arrangement on the second base. The sliding driving device comprises a connecting block and an adjusting screw rod.

The connecting block is connected with the workbench. One end of the adjusting screw rod is rotatably connected with the connecting block, and the other end of the adjusting screw rod is connected to the second base in a threaded penetrating mode. The adjusting screw is used for driving the sliding block to drive the second base to move along the sliding groove.

According to the utility model provides a pair of jacking frock, threaded connection has first lock nut and second lock nut on the adjusting screw. The first locking nut is locked on one side of the second base, and the second locking nut is locked on the other side of the second base.

According to the utility model provides a pair of jacking frock, first supporting part includes first supporter and first elastic cushion pad. The second support part comprises a second support body and a second elastic cushion pad.

One end of the first supporting body is connected with the first driving portion, and the other end of the first supporting body is provided with the first elastic cushion pad. One end of the second support body is connected with the second driving part, and the other end of the second support body is provided with the second elastic cushion pad.

According to the utility model provides a pair of jacking frock, first drive division includes first cylinder body and first piston rod. A first edge oil chamber and a first central oil chamber are formed in the first cylinder body. The first edge oil chamber and the first center oil chamber are spaced apart from each other. The first piston rod is slidably connected to the first central oil chamber.

The second driving part includes a second cylinder and a second piston rod. A second edge oil chamber and a second central oil chamber are formed in the second cylinder body. The second edge oil gallery and the second central oil gallery are spaced apart from one another. The second piston rod is slidably connected to the second central oil chamber.

The jacking driving part also comprises a total driving part. The total driving part comprises a third cylinder and a third piston rod. A total oil cavity is formed in the third cylinder body, and the third piston rod is installed in the total oil cavity in a sliding mode.

The first driving part further comprises a first branch pipe, a second branch pipe and a third branch pipe. The second driving part further comprises a fourth branch pipe, a fifth branch pipe and a sixth branch pipe. The main driving part also comprises a first main pipe, a second main pipe and a third main pipe.

The first manifold is connected to the main oil chamber. And two ends of the first branch pipe are respectively connected with the first edge oil cavity and the first main pipe. And two ends of the fourth branch pipe are respectively connected with the second edge oil cavity and the first main pipe. And a first check valve is arranged on the first main pipe, so that oil in the first edge oil cavity and the second edge oil cavity flows back to the main oil cavity.

The second manifold is connected to the main oil chamber. And two ends of the second branch pipe are respectively connected with the first central oil cavity and the second main pipe. And two ends of the fifth branch pipe are respectively connected with the second central oil cavity and the second main pipe. And a second check valve is arranged on the second main pipe, so that the oil in the main oil cavity flows to the first central oil cavity and the second central oil cavity.

The third manifold is connected to the second manifold. And two ends of the third branch pipe are respectively connected with the first edge oil cavity and the third main pipe. And two ends of the sixth branch pipe are respectively connected with the second edge oil cavity and the third main pipe. And a stop valve is arranged on the third main pipe and is used for stopping or communicating the second main pipe and the third main pipe.

According to the utility model provides a pair of jacking frock, the frock support body still includes braced frame. The universal wheel is installed to braced frame's bottom, universal wheel department is provided with universal wheel locking means.

According to the utility model provides a pair of jacking frock, be provided with external drive handle on the third piston rod. The external driving handle drives the third piston rod to ascend and descend along the main oil cavity. The first header pipe, the second header pipe, the third header pipe, the first branch pipe, the second branch pipe, the third branch pipe, the fourth branch pipe, the fifth branch pipe and the sixth branch pipe are uniformly distributed in the supporting frame.

The utility model provides an in the jacking frock, the bolted connection looks adaptation of oil pan supporting part and engine oil pan. When changing rubber shock absorber ware, jacking drive division drive oil pan supporting part switches to the support state, specifically, the downside to the bolted connection end of engine oil pan is aimed at to oil pan supporting part, and jacking drive division drive oil pan supporting part rebound to the bolted connection end department by the engine oil pan will launch the jacking and hold up. After the rubber shock absorber is replaced, the jacking driving portion drives the oil pan supporting portion to be switched to a separated state, specifically, the jacking driving portion drives the oil pan supporting portion to move downwards, the oil pan supporting portion lifts the engine oil pan to gradually move downwards, and after the engine oil pan is reset to an initial state, the oil pan supporting portion continues to move downwards to a position where the oil pan supporting portion is separated from a bolt connecting end of the engine oil pan.

Through this kind of structure setting, use jacking drive division drive oil pan supporting part to switch between support state and detached state to the staff changes rubber shock absorber, can promote rubber shock absorber's change simple operation nature. The bolt connection end of the oil pan supporting part and the engine oil pan is set to be mutually matched, so that the engine oil pan can be effectively prevented from being damaged by powerful jacking, and the engine is effectively protected.

Drawings

In order to 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 introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a jacking tool provided by the present invention;

fig. 2 is a schematic structural view of an external driving handle in the jacking tool provided by the present invention;

fig. 3 is a schematic structural principle diagram of a jacking driving part in the jacking tool provided by the present invention;

reference numerals:

100. a first support section; 101. a first support; 102. a first resilient cushion; 200. a second support portion; 201. a second support; 202. a second resilient cushion; 300. a first driving section; 301. a first cylinder; 302. a first piston rod; 303. a first central oil chamber; 304. a first edge oil cavity; 305. a first branch pipe; 306. a second branch pipe; 307. a third branch pipe; 400. a second driving section; 401. a second cylinder; 402. a second piston rod; 403. a second central oil chamber; 404. a second edge oil cavity; 405. a fourth branch pipe; 406. a fifth branch pipe; 407. a sixth branch pipe; 500. a tool frame body; 501. a work table; 502. a first base; 503. a second base; 504. a chute; 505. a support frame; 506. a universal wheel; 601. connecting blocks; 602. adjusting the screw rod; 701. a third cylinder; 702. a third piston rod; 703. a main oil chamber; 704. a first manifold; 705. a second manifold; 706. a third header pipe; 707. a first check valve; 708. a second one-way valve; 709. a stop valve; 710. the external drive handle.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the embodiments and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood as specific cases to those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, without mutual contradiction, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, and the technical solution 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The following describes a jacking tool provided by an embodiment of the present invention with reference to fig. 1 to 3. It should be understood that the following description is only exemplary of the present invention and does not constitute any particular limitation of the present invention.

The embodiment of the utility model provides a jacking frock, as shown in fig. 1, this jacking frock includes: an oil pan supporting part and a jacking driving part.

Wherein, the oil pan supporting part is adapted with the bolt connection end of the engine oil pan. The jacking driving part is connected with the oil pan supporting part. The jacking driving part drives the oil pan supporting part to lift between a supporting state and a separating state. Under the supporting state, the oil pan supporting part lifts and supports the engine oil pan; in the separated state, the oil pan support portion is separated from the engine oil pan.

The utility model provides an in the jacking frock, the bolted connection looks adaptation of oil pan supporting part and engine oil pan. When changing rubber shock absorber ware, jacking drive division drive oil pan supporting part switches to the support state, specifically, the downside to the bolted connection end of engine oil pan is aimed at to oil pan supporting part, and jacking drive division drive oil pan supporting part rebound to the bolted connection end department by the engine oil pan will launch the jacking and hold up. After the rubber shock absorber is replaced, the jacking driving portion drives the oil pan supporting portion to be switched to a separated state, specifically, the jacking driving portion drives the oil pan supporting portion to move downwards, the oil pan supporting portion lifts the engine oil pan to move downwards gradually, and after the engine oil pan is reset to an initial state, the oil pan supporting portion continues to move downwards to a position where the oil pan supporting portion is separated from a bolt connecting end of the engine oil pan.

Through this kind of structure setting, use jacking drive division drive oil pan supporting part to switch between support state and detached state to the staff changes rubber shock absorber, can promote rubber shock absorber's change simple operation nature. The bolted connection end with oil pan supporting part and engine oil pan sets up the structure for looks adaptation each other, can prevent effectively that the engine oil pan from receiving powerful jacking damage, and then has effectively protected the engine.

For example, the jack-up driving part includes a driving hydraulic cylinder. The driving hydraulic cylinder comprises a cylinder barrel and a piston rod. A piston rod is slidably connected into the cylinder. The oil pan support portion is connected to an outer end portion of the piston rod. When the piston rod extends outwards and moves, the oil pan supporting part can be driven to ascend, so that the oil pan supporting part is switched to a supporting state; when the piston rod contracts inwards and moves, the oil pan supporting part can be driven to descend, so that the oil pan supporting part is switched to a separated state. Or, in other embodiments of the present invention, the jacking driving portion may further include an electric cylinder, a cylinder, an electric telescopic rod, etc.

In one embodiment of the present invention, the oil pan support portion includes a first support portion 100 and a second support portion 200. The jacking driving part includes a first driving part 300 and a second driving part 400. The first support 100 is connected to the first driving unit 300. The second supporting part 200 is connected to the second driving part 400. The first and second driving

parts

300 and 400 respectively drive the first and second supporting

parts

100 and 200 to ascend and descend.

For example, as shown in FIG. 1, an engine oil pan includes a plurality of bolted ends. The first supporting part 100 and the second supporting part 200 are both fitted to respective bolt connection ends of the engine oil pan. In the lifting and jacking process, the first driving part 300 drives the first supporting part 100 to be supported on one bolt connecting end of the engine oil pan, and the second driving part 400 drives the second supporting part 200 to be supported on the other bolt connecting end of the engine oil pan. By adjusting the operating states of the first driving part 300 and the second driving part 400, the first supporting part 100 and the second supporting part 200 can be controlled to synchronously extend or asynchronously extend, and simultaneously, the first supporting part 100 and the second supporting part 200 can be controlled to be supported to the same or different height positions.

In an embodiment of the present invention, the jacking tool includes a tool holder body 500. The tooling frame 500 includes a table 501. The table 501 is provided with a first base 502 and a second base 503. The first support part 100 and the first driving part 300 are disposed on the first base 502. The second base 503 is slidably connected to the table 501. The second supporting part 200 and the second driving part 400 are disposed on the second base 503.

Further, in an embodiment of the present invention, a slider is disposed on the second base 503. The table 501 is provided with a chute 504. The slider fits into the channel 504. The slider is slidably mounted into the slide channel 504.

Specifically, as shown in fig. 1, a first base 502 and a second base 503 are disposed on a table 501 in parallel and aligned end to end. The slide groove 504 is provided along a direction perpendicular to the arrangement direction of the second bases 503. The slider connection seats are respectively installed on both sides of the second base 503. The slider is disposed at the bottom of the slider connection seat and slidably connected to the sliding groove 504. The distance between the first base 502 and the second base 503 can be adjusted by adjusting the position of the sliding block in the sliding groove 504, and then the supporting distance between the first supporting part 100 and the second supporting part 200 is adjusted to meet the lifting and jacking requirements of engines of different models.

In an embodiment of the present invention, a sliding driving device is connected to the second base 503. The slide drive comprises a connecting block 601 and an adjusting screw 602.

The connection block 601 is connected to the work table 501. One end of the adjusting screw 602 is rotatably connected to the connecting block 601. The other end of the adjusting screw 602 is threaded through and connected to the second base 503. The adjusting screw 602 is used for driving the slider to move the second base 503 along the sliding groove 504.

Further, in an embodiment of the present invention, the adjusting screw 602 is threadedly connected with a first locking nut and a second locking nut. The first locking nut is locked to one side of the second base 503, and the second locking nut is locked to the other side of the second base 503.

For example, as shown in fig. 1, the connection block 601 is fixedly connected to the work table 501 by bolts. A through hole is arranged on the connecting block 601. One end of the adjusting screw 602 is rotatably connected to the through hole. The second base 503 is provided with a threaded hole adapted to the adjusting screw 602. An adjustment screw 602 is threaded into the threaded bore. The adjustment screw 602 is disposed parallel to the slide channel 504. Rotating the adjusting screw 602 can drive the second base 503 to move along the sliding slot 504, so as to adjust the distance between the second base 503 and the first base 502. In addition, a first locking nut and a second locking nut are mounted on the adjusting screw 602. The first locking nut and the second locking nut are respectively located on both sides of the second base 503. When the position of the second base 503 needs to be adjusted, the first lock nut and the second lock nut are screwed to a position away from the second base 503. When the second base 503 is adjusted to a target position, the first locking nut and the second locking nut are respectively screwed to positions which are attached and locked on two sides of the second base 503, so as to improve the stability of the second base 503.

In one embodiment of the present invention, the first support 100 includes a first support 101 and a first elastic buffer pad 102. The second support portion 200 includes a second support body 201 and a second elastic cushion pad 202.

One end of the first supporting body 101 is connected to the first driving part 300, and the other end of the first supporting body 101 is provided with a first elastic cushion 102. One end of the second supporting body 201 is connected to the second driving part 400, and the other end of the second supporting body 201 is provided with a second elastic cushion 202. For example, the first and second

resilient cushion pads

102, 202 are each polyurethane pads.

According to the above-described embodiments, by providing the first elastic cushion pad 102 and the second elastic cushion pad 202 at the end portions of the first support 101 and the second support 201, respectively, the bolt connection end of the engine oil pan can be effectively protected, and the bolt connection end of the engine oil pan can be prevented from being damaged by impact.

In an embodiment of the present invention, the first driving part 300 includes a first cylinder 301 and a first piston rod 302. A first edge oil chamber 304 and a first center oil chamber 303 are formed in the first cylinder block 301. The first edge oil chamber 304 and the first central oil chamber 303 are spaced from each other. A first piston rod 302 is slidably connected within a first central oil chamber 303.

The second driving part 400 includes a second cylinder 401 and a second piston rod 402. A second edge oil chamber 404 and a second center oil chamber 403 are formed in the second cylinder block 401. The second edge oil chamber 404 and the second center oil chamber 403 are spaced from each other. A second piston rod 402 is slidably coupled within the second central oil chamber 403.

The jacking driving part also comprises a total driving part. The total drive comprises a third cylinder 701 and a third piston rod 702. A total oil chamber 703 is formed in the third cylinder block 701. The third piston rod 702 is slidably mounted into the main oil chamber 703.

The first driving part 300 further includes a first branch pipe 305, a second branch pipe 306, and a third branch pipe 307. The second driving part 400 further includes a fourth branch pipe 405, a fifth branch pipe 406, and a sixth branch pipe 407. The overall drive section also includes a first manifold 704, a second manifold 705, and a third manifold 706.

The first manifold 704 is connected to the manifold oil chamber 703. The first branch pipe 305 is connected at both ends to the first edge oil chamber 304 and the first manifold 704, respectively. The second side wall chamber 404 and the first manifold 704 are connected to a fourth manifold 405 at opposite ends thereof. The first manifold 704 is provided with a first check valve 707 to return the oil in the first and second

edge oil chambers

304 and 404 to the main oil chamber 703.

The second manifold 705 is connected to the manifold oil chamber 703. The second branch pipe 306 is connected at both ends to the first central oil chamber 303 and the second manifold 705, respectively. The fifth branch pipe 406 is connected at both ends thereof to the second central oil chamber 403 and the second manifold 705, respectively. A second check valve 708 is mounted to the second manifold 705 to allow oil in the main chamber 703 to flow into the first and second

central oil chambers

303, 403.

The third manifold 706 is connected to the second manifold 705. Both ends of the third branch pipe 307 are connected to the first edge oil chamber 304 and the third manifold 706, respectively. Both ends of the sixth branch pipe 407 are connected to the second edge oil chamber 404 and the third header pipe 706, respectively. A stop valve 709 is provided on the third manifold 706. The shutoff valve 709 shuts off or communicates the second manifold 705 with the third manifold 706.

Specifically, as shown in fig. 3, the first edge oil chamber 304 and the second edge oil chamber 404 are both communicated with the main oil chamber 703, and a first check valve 707 is installed on a communication pipe between the main oil chamber 703 and the first edge oil chamber 304 and the second edge oil chamber 404. The inlet of the first check valve 707 faces the first edge oil chamber 304 and the second edge oil chamber 404, and the outlet of the first check valve 707 faces the general oil chamber 703. Thereby, the oil in the first edge oil chamber 304 and the second edge oil chamber 404 is caused to enter the total oil chamber 703.

The first central oil chamber 303 and the second central oil chamber 403 are both communicated with a main oil chamber 703, and a second check valve 708 is installed on a communication pipeline between the main oil chamber 703 and the first central oil chamber 303 and the second central oil chamber 403. The inlet of second check valve 708 is directed to the main oil chamber 703 and the outlet of second check valve 708 is directed to the first central oil chamber 303 and the second central oil chamber 403. Thereby, the oil inside the main oil chamber 703 is allowed to enter the first and second

central oil chambers

303 and 403.

During the lifting of the first and

second piston rods

302, 402, the shut-off valve 709 on the third manifold 706 is closed. The third piston rod 702 is manually lifted upward and oil in the first and second

edge oil chambers

304, 404 passes through the first check valve 707 and into the total oil chamber 703. When the third piston rod 702 is pressed downward, the oil in the main oil chamber 703 passes through the second check valve 708 and enters the first central oil chamber 303 and the second central oil chamber 403. Therefore, by continuously and cyclically pulling and pressing the third piston rod 702, the oil in the first edge oil chamber 304 and the second edge oil chamber 404 can be gradually input and output into the first central oil chamber 303 and the second central oil chamber 403, and the first piston rod 302 and the second piston rod 402 are further driven to be lifted upwards.

During the descending process of the first piston rod 302 and the second piston rod 402, the stop valve 709 on the third main pipe 706 is opened, so that the oil in the first central oil chamber 303 and the second central oil chamber 403 gradually passes through the second main pipe 705, the third main pipe 706, the third branch pipe 307 and the sixth branch pipe 407 and enters the first edge cavity and the second edge cavity respectively, and further, the first piston rod 302 and the second piston rod 402 are driven to move downwards.

In an embodiment of the present invention, the tool holder body 500 further comprises a support frame 505. The bottom of the support frame 505 is mounted with universal wheels 506. The universal wheel 506 is provided with a universal wheel locking device.

For example, the universal wheel locking device includes a locking lever. The locking lever is provided with a locked state and a released state. In the locked state, the locking lever flips over and engages the edge of the universal wheel 506 to prevent rotation of the universal wheel 506. In the released state, the locking lever is flipped to a position separated from the universal wheel 506 to restore the universal wheel 506 to rotational capability.

In one embodiment of the present invention, an external driving handle 710 is disposed on the third piston rod 702. The external driving handle 710 drives the third piston rod 702 to move up and down along the total oil chamber 703. The first manifold 704, the second manifold 705, the third manifold 706, the first branch pipe 305, the second branch pipe 306, the third branch pipe 307, the fourth branch pipe 405, the fifth branch pipe 406 and the sixth branch pipe 407 are all arranged in the support frame 505.

For example, as shown in fig. 2, the support frame 505 has a frame structure in which hollow square pipes are joined to each other. The first manifold 704, the second manifold 705, the third manifold 706, the first branch pipe 305, the second branch pipe 306, the third branch pipe 307, the fourth branch pipe 405, the fifth branch pipe 406 and the sixth branch pipe 407 can be uniformly distributed in the inner cavity of the hollow square pipe. An external driving handle 710 is connected to the outer end of the third piston rod 702. The lifting motion of the first piston rod 302 and the second piston rod 402 can be driven by manually pressing or pulling the external driving handle 710. In addition, the stop valve 709 may be exposed to the outside of the support frame 505, so that a worker adjusts the operating state of the stop valve 709.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A jacking tool is characterized by comprising an oil pan supporting part and a jacking driving part,

the oil pan supporting part is matched with a bolt connecting end of an engine oil pan, the jacking driving part is connected with the oil pan supporting part, the jacking driving part can drive the oil pan supporting part to lift between a supporting state and a separating state, and the oil pan supporting part supports and supports the engine oil pan in a lifting mode in the supporting state; in the separated state, the oil pan support portion is separated from the engine oil pan.

2. The jacking tool according to claim 1, wherein the oil pan supporting part comprises a first supporting part and a second supporting part, the jacking driving part comprises a first driving part and a second driving part,

the first supporting part is connected with the first driving part, the second supporting part is connected with the second driving part, and the first driving part and the second driving part respectively drive the first supporting part and the second supporting part to ascend and descend.

3. The jacking tool according to claim 2, wherein the jacking tool comprises a tool frame body, the tool frame body comprises a workbench, a first base and a second base are arranged on the workbench,

the first supporting part and the first driving part are arranged on the first base, the second base is connected with the workbench in a sliding mode, and the second supporting part and the second driving part are arranged on the second base.

4. The jacking tool according to claim 3, wherein a sliding block is arranged on the second base, a sliding groove is formed in the workbench, the sliding block is matched with the sliding groove, and the sliding block is slidably mounted in the sliding groove.

5. The jacking tool according to claim 4, wherein a sliding driving device is connected to the second base and comprises a connecting block and an adjusting screw rod,

the connecting block is connected with the workbench, one end of the adjusting screw is connected with the connecting block in a rotating mode, the other end of the adjusting screw is connected to the second base in a penetrating mode through threads, and the adjusting screw is used for driving the sliding block to drive the second base to move along the sliding groove.

6. The jacking tool according to claim 5, wherein the adjusting screw is in threaded connection with a first locking nut and a second locking nut,

the first locking nut is locked on one side of the second base, and the second locking nut is locked on the other side of the second base.

7. The jacking tooling of claim 3, wherein the first support portion includes a first support body and a first resilient cushion pad, the second support portion includes a second support body and a second resilient cushion pad,

one end of the first support body is connected with the first driving portion, the other end of the first support body is provided with the first elastic cushion pad, one end of the second support body is connected with the second driving portion, and the other end of the second support body is provided with the second elastic cushion pad.

8. The jacking tooling of claim 7, wherein the first driving part includes a first cylinder body and a first piston rod, a first edge oil chamber and a first central oil chamber are formed in the first cylinder body, the first edge oil chamber and the first central oil chamber are separated from each other, the first piston rod is slidably connected into the first central oil chamber, the second driving part includes a second cylinder body and a second piston rod, a second edge oil chamber and a second central oil chamber are formed in the second cylinder body, the second edge oil chamber and the second central oil chamber are separated from each other, the second piston rod is slidably connected into the second central oil chamber, the jacking driving part further includes a main driving part, the main driving part includes a third cylinder body and a third piston rod, a main oil chamber is formed in the third cylinder body, and the third piston rod is slidably mounted into the main oil chamber,

the first driving part also comprises a first branch pipe, a second branch pipe and a third branch pipe, the second driving part also comprises a fourth branch pipe, a fifth branch pipe and a sixth branch pipe, the total driving part also comprises a first header pipe, a second header pipe and a third header pipe,

the first main pipe is connected with the main oil cavity, two ends of the first branch pipe are respectively connected with the first edge oil cavity and the first main pipe, two ends of the fourth branch pipe are respectively connected with the second edge oil cavity and the first main pipe, the first main pipe is provided with a first check valve so as to enable oil liquid in the first edge oil cavity and the second edge oil cavity to flow back into the main oil cavity,

the second main pipe is connected with the main oil cavity, two ends of the second branch pipe are respectively connected with the first central oil cavity and the second main pipe, two ends of the fifth branch pipe are respectively connected with the second central oil cavity and the second main pipe, a second check valve is arranged on the second main pipe so that oil in the main oil cavity flows into the first central oil cavity and the second central oil cavity,

the third main pipe is connected with the second main pipe, two ends of the third branch pipe are respectively connected with the first edge oil cavity and the third main pipe, two ends of the sixth branch pipe are respectively connected with the second edge oil cavity and the third main pipe, a stop valve is arranged on the third main pipe, and the stop valve is stopped or communicated with the second main pipe and the third main pipe.

9. The jacking tool according to claim 8, wherein the tool frame body further comprises a supporting frame, universal wheels are mounted at the bottom of the supporting frame, and universal wheel locking devices are arranged at the universal wheels.

10. The jacking tool according to claim 9, wherein an external driving handle is arranged on the third piston rod, the external driving handle drives the third piston rod to ascend and descend along the main oil cavity, and the first main pipe, the second main pipe, the third main pipe, the first branch pipe, the second branch pipe, the third branch pipe, the fourth branch pipe, the fifth branch pipe and the sixth branch pipe are uniformly distributed in the supporting frame.