CN112794231A

CN112794231A - Wedged pneumatic jack

Info

Publication number: CN112794231A
Application number: CN202110109079.1A
Authority: CN
Inventors: 王寅; 蒋凯; 冷远鹏; 张小沁; 薛晓康; 王思怿
Original assignee: Shanghai Chemical Industry Testing Co ltd; Shanghai Research Institute of Chemical Industry SRICI
Current assignee: Shanghai Chemical Industry Testing Co ltd; Shanghai Research Institute of Chemical Industry SRICI
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-05-14
Anticipated expiration: 2041-01-27
Also published as: CN112794231B

Abstract

The invention relates to a wedged pneumatic jack which comprises a middle plate and two side plates, wherein the two side plates are respectively positioned on two sides of the middle plate and are rotationally connected with the middle plate, a driving air cylinder is further rotationally arranged on each side plate, and the rotating center of the driving air cylinder and the rotating center of the middle plate are parallel and staggered mutually. Compared with the prior art, the pneumatic jack can be easily inserted into the slit to achieve the purpose of lifting, and can solve the problem that a cement block, a stone block or other objects need to be quickly and effectively pried and moved in a scene with a small slit.

Description

Wedged pneumatic jack

Technical Field

The invention belongs to the technical field of jacking devices, and relates to a wedged air pressure jack.

Background

The jack is the simplest hoisting equipment with small hoisting height and wide application, mainly comprising a mechanical jack and a hydraulic jack, wherein the mechanical jack is very laborious, slow and time-consuming to hoist due to angle reasons when just being lifted, and the hydraulic jack is labor-saving but time-consuming to press at a time. Therefore, the above jack is not suitable for the occasion with small gap, especially the emergency occasion.

For example, chinese patent ZL201620621596.1 discloses a bellows air pressure jack, which includes a closed bellows-shaped cylinder body, wherein an air charging and discharging nozzle is provided on the cylinder body, and when the cylinder body is inflated, the cylinder body is gradually raised along with the increase of the internal air pressure until the bellows-shaped cylinder body reaches the maximum height when the cylinder body is cylindrical. Although the device is relatively convenient to use, the device is still not suitable for occasions with small slits.

Disclosure of Invention

The invention aims to provide a wedged air pressure jack to solve the problem that a cement block, a stone block or other objects need to be pried and moved quickly and effectively in a scene with a small slit.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a wedge-type pneumatic jack, includes the medium plate and is located the medium plate both sides respectively and rotates two sideboard of being connected with the medium plate still rotate on the sideboard and arrange one and drive actuating cylinder, and guarantee to drive the rotation center of actuating cylinder and the rotation center of medium plate and be parallel and stagger each other.

Furthermore, along the axial direction of the middle plate and the side plate, one end of the two ends, which is closer to the rotation center of the middle plate, is defined as a large force end, and the other end, which is farther from the rotation center of the middle plate, is defined as a large stroke end, and anti-skidding tooth structures are arranged at the large force end and the large stroke end.

Further, the center of rotation of the drive cylinder is less from the large stroke end than from the large force end.

Furthermore, the middle plate is rotatably connected with the two side plates through a hinge shaft.

Furthermore, a cylinder hanging lug is arranged on the side plate, and the driving cylinder is rotatably arranged on the cylinder hanging lug through a pin shaft.

Furthermore, the middle plate is also provided with a pit used for propping against the output end of the driving cylinder.

Furthermore, the output end of the driving cylinder is connected with a jacking rod head, and the end part of the jacking rod head is matched with the shape of the concave pit.

Still further preferably, the tip of the tip-extending club head is hemispherical, and the recess is spherical bowl-shaped.

Further, the driving cylinder is also connected with an external air supply device through a compressed air conduit.

Furthermore, the driving cylinder is a single-acting cylinder.

The invention solves the problem of quickly and effectively prying and moving cement blocks, stones or other objects in emergency rescue. The air pump can be folded to reduce the volume, has lighter weight than a hydraulic jack and a mechanical jack and good maintainability, and can use a vehicle battery power air pump or a manual air pump in an emergency situation without an air compressor.

The invention is mainly used for the crack equal interval type scene. The high force end can remove heavier objects and the high travel end can be used with larger clearances.

The pneumatic jack can be used for prying and moving cement blocks, stones or other objects in emergency. Manpower is not needed, and the lifting is fast and stable. The existing jacks mostly need a large bottom space to realize the lifting function. The pneumatic jack can be applied to scenes with small gaps, and the pneumatic jack can be easily inserted into the gap to achieve the lifting purpose. And it is lighter than a typical oil pump jack. Compared with a conventional 2-ton jack, the lifting jack can achieve the effect of 10 tons.

Drawings

FIG. 1 is a schematic front view of the present invention;

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

FIG. 3 is a schematic diagram of the operation of the present invention;

the notation in the figure is:

1-large stroke end, 2-large force end, 3-middle plate, 4-side plate, 5-hinge shaft, 6-anti-slip tooth, 7-top extension rod head, 8-cylinder hanger, 9-driving cylinder, 10-pit, 11-compressed air conduit.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

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

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The wedge type pneumatic jack of the present invention will be described in detail below.

The wedged air pressure jack has a structure shown in fig. 1 and 2, and comprises a middle plate 3 and two side plates 4 which are respectively positioned at two sides of the middle plate 3 and are rotatably connected with the middle plate 3, wherein a driving air cylinder 9 is further rotatably arranged on the side plates 4, and the rotation center of the driving air cylinder 9 is ensured to be parallel to the rotation center of the middle plate 3 and staggered with each other.

In some embodiments, referring to fig. 1 and fig. 2 again, along the axial direction of the middle plate 3 and the side plate 4, one of the two ends, which is closer to the rotation center of the middle plate 3, is defined as a large-force end 2, and the end, which is farther from the rotation center of the middle plate 3, is defined as a large-stroke end 1, and then the large-force end 2 and the large-stroke end 1 are both provided with anti-slip teeth 6. Further, the center of rotation of the drive cylinder 9 is located at a smaller distance from the large stroke end 1 than from the large force end 2.

In some embodiments, referring again to fig. 2, the middle plate 3 is pivotally connected to the two side plates 4 by a hinge shaft 5.

In some embodiments, please refer to fig. 2 again, a cylinder hanging lug 8 is provided on the side plate 4, and the driving cylinder 9 is rotatably disposed on the cylinder hanging lug 8 through a pin.

In some embodiments, referring again to fig. 1, the middle plate 3 is further formed with a recess 10 for abutting against the output end of the driving cylinder 9. Furthermore, the output end of the driving cylinder 9 is connected with a jacking rod head 7, and the end part of the jacking rod head 7 is matched with the shape of the pit 10. More preferably, the end of the top extension rod head 7 is hemispherical, and the concave pit 10 is spherical bowl-shaped.

In some embodiments, referring again to fig. 1, the drive cylinder 9 is also connected to an external air supply via a compressed air conduit 11.

In some embodiments, the drive cylinder 9 is a single-acting cylinder.

The invention is mainly used for the crack equal interval type scene. The high force end 2 can remove heavier objects and the high stroke end 1 can be used with larger clearances.

The above embodiments may be implemented individually, or in any combination of two or more.

The above embodiments will be described in more detail with reference to specific examples.

Example 1:

the wedging type pneumatic jack of the embodiment has a structure as shown in fig. 1 and 2, and comprises a middle plate 3 and two side plates 4 which are respectively positioned at two sides of the middle plate 3 and are rotatably connected with the middle plate 3, wherein a driving cylinder 9 is further rotatably arranged on the side plates 4, and the rotation center of the driving cylinder 9 is parallel to the rotation center of the middle plate 3 and is staggered with the rotation center.

Referring to fig. 1 and 2 again, along the axial direction of the middle plate 3 and the side plate 4, one of the two ends, which is closer to the rotation center of the middle plate 3, is defined as a large-force end 2, and the end, which is farther from the rotation center of the middle plate 3, is defined as a large-stroke end 1, and anti-slip teeth 6 are disposed at the large-force end 2 and the large-stroke end 1. Further, the center of rotation of the drive cylinder 9 is located at a smaller distance from the large stroke end 1 than from the large force end 2.

Referring to fig. 2 again, the middle plate 3 is rotatably connected to the two side plates 4 by a hinge shaft 5.

Referring to fig. 2 again, the side plate 4 is provided with a cylinder hanging lug 8, and the driving cylinder 9 is rotatably disposed on the cylinder hanging lug 8 through a pin shaft.

Referring to fig. 1 again, the middle plate 3 is further formed with a recess 10 for abutting against the output end of the driving cylinder 9. Furthermore, a jacking rod head 7 is connected to the output end of the driving cylinder 9, and the end of the jacking rod head 7 is matched with the shape of the pit 10. More preferably, the end of the top wand head 7 is hemispherical and the recess 10 is spherical bowl-shaped.

Referring again to fig. 1, the driving cylinder 9 is also connected to an external air supply device through a compressed air conduit 11. The driving cylinder 9 is a single-acting cylinder.

The specific working process of this embodiment is as follows:

when facing a situation that the gap of a cement block, a stone block or other objects is small, the large stroke end 1 or the large force end 2 of the device is placed in the gap, wherein the gap is small, and the large force end 2 used for removing the heavy objects is needed; the gap is large, requiring a large stroke, using a large stroke end 1. Then, play outside air feeder, under the effect of pressurized air, the top that drives actuating cylinder 9 stretches out the pole head 7 outwards to through self angular adjustment with the pit 10 of propping to on the medium plate 3, thereby promote medium plate 3, make it stagger with sideboard 4, thereby realize the effect of jack.

The embodiment solves the problem of quickly and effectively prying and moving cement blocks, stones or other objects in emergency rescue. The air pump can be folded to reduce the volume, has lighter weight than a hydraulic jack and a mechanical jack and good maintainability, and can use a vehicle battery power air pump or a manual air pump in an emergency situation without an air compressor.

The embodiment is mainly used for the crack equal interval type scene. The high force end 2 can remove heavier objects and the high stroke end 1 can be used with larger clearances.

The pneumatic jack of the embodiment can be used for prying and moving cement blocks, stones or other objects in emergency. Manpower is not needed, and the lifting is fast and stable. The existing jacks mostly need a large bottom space to realize the lifting function. The pneumatic jack can be applied to a scene with a small gap, and the pneumatic jack can be easily inserted into the gap to achieve the lifting purpose. And it is lighter than a typical oil pump jack. Compared with a conventional 2-ton jack, the effect of 10 tons can be achieved by the present embodiment.

The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. The wedged air pressure jack is characterized by comprising a middle plate and two side plates which are respectively positioned on two sides of the middle plate and are rotatably connected with the middle plate, wherein a driving air cylinder is further rotatably arranged on each side plate, and the rotating center of the driving air cylinder is parallel to the rotating center of the middle plate and is staggered with the rotating center of the middle plate.

2. The wedging type pneumatic jack of claim 1, wherein the axial direction of the middle plate and the side plate defines a large force end at one end of the two ends closer to the rotation center of the middle plate and a large stroke end at the other end of the two ends farther from the rotation center of the middle plate, and the large force end and the large stroke end are both provided with anti-slip teeth.

3. A wedge-type pneumatic jack as claimed in claim 2, wherein the center of rotation of the driving cylinder is located at a distance from the end of the large stroke which is smaller than the distance from the end of the large force.

4. The wedging pneumatic jack of claim 1, wherein said middle plate is pivotally connected to said two side plates by a hinge.

5. The wedging type pneumatic jack of claim 1, wherein a cylinder lug is provided on the side plate, and the driving cylinder is rotatably disposed on the cylinder lug through a pin.

6. A wedge-type pneumatic jack as claimed in claim 1, wherein said middle plate is further formed with a recess for receiving the output end of the driving cylinder.

7. The wedging pneumatic jack of claim 6, wherein the output end of the driving cylinder is connected to a push rod head, the end of which is adapted to the shape of the recess.

8. The wedging pneumatic jack of claim 7, wherein the tip of said tip is hemispherical and said cavity is spherical bowl shaped.

9. A wedge-type pneumatic jack as claimed in claim 1, wherein the driving cylinder is further connected to an external air supply device through a compressed air conduit.

10. The wedging pneumatic jack of claim 1, wherein the drive cylinder is a single acting cylinder.