CN221917126U - Crane with conveniently replaced oil pipe - Google Patents

Abstract

The utility model discloses a crane convenient for replacing an oil pipe, which comprises a crane main body, an oil storage tank, a connecting pipe and a hydraulic cylinder, wherein return springs are fixedly connected to corresponding positions of the oil storage tank and the hydraulic cylinder, the other ends of the return springs are fixedly connected with connecting seats, rotating sleeves are arranged on the inner sides of the connecting seats, balls are arranged on the inner surfaces of the rotating sleeves, an adjusting seat is fixedly connected to one side of each rotating sleeve, a positioning claw is fixedly connected to the other side of each adjusting seat, a positioning clamping block is arranged at one end of each positioning claw, a connector is arranged on the inner sides of the positioning claws, and sealing rubber sleeves are bonded on the inner sides of the connectors. The utility model has simple operation, can replace the oil pipe single piece, does not need to be disassembled by means of tools, avoids the trouble caused by the fact that the nut cannot be taken down, saves time and labor, and has high working efficiency.

Description

A crane for convenient replacement of oil pipes

Technical Field

The utility model relates to the technical field of crane maintenance, in particular to a crane which is convenient for replacing oil pipes.

Background Art

A crane refers to a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range. It is also called an overhead crane, overhead crane, or hoist.

At present, when the oil pipe of the crane is used for a long time, cracks will appear on the outer wall of the oil pipe due to aging. At this time, the oil pipe needs to be replaced, but the existing crane oil pipes are connected by nuts, and the nuts are exposed to the air for a long time, which makes the connection between the nuts and the crane easy to rust. After the rust accumulates for a long time, the nuts cannot be removed, which brings inconvenience to the replacement of the oil pipe. For this reason, we propose a crane that is convenient for replacing the oil pipe.

Utility Model Content

The utility model aims to provide a crane for convenient replacement of oil pipes, which has the advantage of convenient replacement of oil pipes and solves the problem that the oil pipes of existing cranes are connected by nuts, and the nuts are exposed to the air for a long time, making it easy for the connection between the nuts and the crane to rust. After the rust accumulates for a long time, the nuts cannot be removed, causing inconvenience in replacing the oil pipes.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crane for convenient replacement of oil pipes, comprising a crane body, an oil storage tank, a connecting pipe and a hydraulic cylinder, wherein the connecting pipe is fixedly connected with a return spring at the corresponding positions of the oil storage tank and the hydraulic cylinder, the other end of the return spring is fixedly connected with a connecting seat, a rotating sleeve is arranged on the inner side of the connecting seat, a ball is arranged on the inner surface of the rotating sleeve, an adjusting seat is fixedly connected to one side of the rotating sleeve, a positioning claw is fixedly connected to the other side of the adjusting seat, a positioning block is arranged at one end of the positioning claw, a connecting head is arranged on the inner side of the positioning claw, a sealing rubber sleeve is bonded to the inner side of the connecting head, a positioning groove is arranged on one side of the connecting head, a guide groove is arranged on the outer surface of the connecting head, and an oil pipe body is arranged on the inner side of the connecting head.

Preferably, the left end of the top of the crane body is fixedly connected with an oil storage tank, the right end of the crane body is provided with a hydraulic cylinder, and one end of the hydraulic cylinder and the right side of the oil storage tank are both provided with connecting pipes.

Preferably, the connecting seat and the connecting pipe are matched, and the connecting seat slides on the outer surface of the connecting pipe.

Preferably, there are multiple balls, and the angles between two adjacent balls are equal.

Preferably, the number of the positioning claws is four, and the angles between two adjacent positioning claws are equal.

Preferably, the positioning slot and the positioning block are matched, and the positioning block is connected to the inner side of the positioning slot.

Preferably, the guide groove and the positioning claw are matched, and one end of the positioning claw slides on the inner side of the guide groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

The utility model is easy to operate, can replace a single oil pipe, and does not need to be disassembled with the aid of tools, thus avoiding the trouble caused by the inability to remove the nut, saving time and labor and having high work efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the utility model;

FIG2 is a schematic diagram of the matching structure of the connecting pipe and the oil pipe body of the utility model;

FIG3 is a schematic diagram of the matching structure of the adjustment seat and the connector of the utility model;

FIG. 4 is an enlarged structural schematic diagram of point A of the present invention.

In the figure: 1. Crane body; 2. Oil storage tank; 3. Connecting pipe; 4. Oil pipe body; 5. Hydraulic cylinder; 6. Return spring; 7. Connecting seat; 8. Positioning claw; 9. Connecting head; 10. Guide groove; 11. Adjusting seat; 12. Sealing rubber sleeve; 13. Ball; 14. Rotating sleeve; 15. Positioning block; 16. Positioning slot.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The crane body 1, oil storage tank 2, connecting pipe 3, oil pipe body 4, hydraulic cylinder 5, return spring 6, connecting seat 7, positioning claw 8, connecting head 9, guide groove 10, adjusting seat 11, sealing rubber sleeve 12, ball 13, rotating sleeve 14, positioning block 15 and positioning slot 16 components of the present application are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

Please refer to Figures 1-4, a crane for convenient replacement of oil pipes includes a crane body 1, an oil storage tank 2, a connecting pipe 3 and a hydraulic cylinder 5, the connecting pipe 3 is located at the corresponding positions of the oil storage tank 2 and the hydraulic cylinder 5, and is fixedly connected with a return spring 6, the other end of the return spring 6 is fixedly connected with a connecting seat 7, a rotating sleeve 14 is arranged on the inner side of the connecting seat 7, a ball 13 is arranged on the inner surface of the rotating sleeve 14, an adjusting seat 11 is fixedly connected to one side of the rotating sleeve 14, and a positioning claw 8 is fixedly connected to the other side of the adjusting seat 11, a positioning block 15 is arranged at one end of the positioning claw 8, a connecting head 9 is arranged on the inner side of the positioning claw 8, a sealing rubber sleeve 12 is bonded to the inner side of the connecting head 9, a positioning groove 16 is provided on one side of the connecting head 9, a guide groove 10 is provided on the outer surface of the connecting head 9, and an oil pipe body 4 is arranged on the inner side of the connecting head 9.

The left end of the top of the crane body 1 is fixedly connected with an oil storage tank 2 , the right end of the crane body 1 is provided with a hydraulic cylinder 5 , and one end of the hydraulic cylinder 5 and the right side of the oil storage tank 2 are both provided with connecting pipes 3 .

The connection seat 7 is matched with the connection pipe 3 , and the connection seat 7 slides on the outer surface of the connection pipe 3 .

Through the above technical solution, the connection seat 7 and the connection pipe 3 are arranged to ensure the smooth movement of the adjustment seat 11.

There are multiple balls 13 , and the angles between two adjacent balls 13 are equal.

Through the above technical solution, the ball 13 is arranged to reduce the resistance of the adjusting seat 11 when it rotates.

The number of the positioning claws 8 is four, and the angles between two adjacent positioning claws 8 are equal.

Through the above technical solution, the connector 9 can be positioned by setting the positioning claw 8.

The positioning slot 16 is matched with the positioning block 15 , and the positioning block 15 is engaged with the inner side of the positioning slot 16 .

Through the above technical solution, the stability of the connector 9 is ensured by the arrangement of the positioning slot 16 and the positioning block 15 .

The guide groove 10 is matched with the positioning claw 8 , and one end of the positioning claw 8 slides inside the guide groove 10 .

Through the above technical solution, the arrangement of the guide groove 10 and the positioning claw 8 facilitates the cooperation between the positioning claw 8 and the connector 9.

During use, when the oil pipe needs to be replaced, the connecting seat 7 is driven to move outward and the reset spring 6 can be slightly stretched. At this time, the positioning block 15 can withdraw from the positioning slot 16. Then, with the assistance of the ball 13 and the rotating sleeve 14, the positioning claw 8 is driven to rotate through the adjusting seat 11. After the positioning claw 8 moves to the position of the guide slot 10, the connecting seat 7 is loosened, and then the reset spring 6 can drive the connecting seat 7 to reset, so that the positioning claw 8 withdraws from the guide slot 10, so that the connector 9 and the connecting pipe 3 are separated to realize the disassembly of the old oil pipe. Then, the new oil pipe body 4 is taken out, and the connecting head 9 is put on one end of the connecting pipe 3 again. Then, the connecting seat 7 is driven to move outward again, so that the reset spring 6 is stretched, and with the assistance of the ball 13 and the rotating sleeve 14, the positioning claw 8 enters the guide groove 10, and then, the positioning claw 8 is driven to rotate through the adjusting seat 11, and after the positioning block 15 is aligned with the positioning groove 16, the connecting seat 7 is released. At this time, the reset spring 6 drives the connecting seat 7 to move in the opposite direction, and then the positioning claw 8 drives the positioning block 15 to be stuck in the quasi-positioning groove 16, and with the cooperation of the tension of the reset spring 6, the connecting head 9 and the connecting pipe 3 are quickly connected, and the setting of the sealing rubber sleeve 12 ensures the sealing between the connecting pipe 3 and the connecting head 9.

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

Claims (7)

1. The utility model provides a hoist of convenient change oil pipe, includes hoist main part (1) and batch oil tank (2) and connecting pipe (3) and pneumatic cylinder (5), its characterized in that: connecting pipe (3) are located the equal fixedly connected with reset spring (6) in corresponding position of batch oil tank (2) and pneumatic cylinder (5), the other end fixedly connected with connecting seat (7) of reset spring (6), the inboard of connecting seat (7) is provided with rotatory cover (14), the internal surface of rotatory cover (14) is provided with ball (13), one side fixedly connected with adjusting seat (11) of rotatory cover (14), the opposite side fixedly connected with locating claw (8) of adjusting seat (11), the one end of locating claw (8) is provided with location fixture block (15), the inboard of locating claw (8) is provided with connector (9), the inboard bonding of connector (9) has sealed gum cover (12), locating slot (16) have been seted up to one side of connector (9), guiding groove (10) have been seted up to the surface of connector (9), the inboard of connector (9) is provided with oil pipe main part (4).

2. A crane for facilitating replacement of tubing as claimed in claim 1, wherein: the left end fixedly connected with batch oil tank (2) at hoist main part (1) top, the right-hand member of hoist main part (1) is provided with pneumatic cylinder (5), the one end of pneumatic cylinder (5) and the right side of batch oil tank (2) all are provided with connecting pipe (3).

3. A crane for facilitating replacement of tubing as claimed in claim 1, wherein: the connecting seat (7) is matched with the connecting pipe (3), and the connecting seat (7) slides on the outer surface of the connecting pipe (3).

4. A crane for facilitating replacement of tubing as claimed in claim 1, wherein: the number of the balls (13) is multiple, and the included angles between two adjacent balls (13) are equal.

5. A crane for facilitating replacement of tubing as claimed in claim 1, wherein: the number of the positioning claws (8) is four, and the included angles between two adjacent positioning claws (8) are equal.

6. A crane for facilitating replacement of tubing as claimed in claim 1, wherein: the positioning clamping groove (16) is matched with the positioning clamping block (15), and the positioning clamping block (15) is clamped on the inner side of the positioning clamping groove (16).

7. A crane for facilitating replacement of tubing as claimed in claim 1, wherein: the guide groove (10) is matched with the positioning claw (8), and one end of the positioning claw (8) slides on the inner side of the guide groove (10).