CN218914034U

CN218914034U - Anti-loosening hydraulic pipe joint

Info

Publication number: CN218914034U
Application number: CN202320014222.3U
Authority: CN
Inventors: 石建峰
Original assignee: Sichuan Ouyiguan Machinery Co ltd
Current assignee: Sichuan Ouyiguan Machinery Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-04-25
Anticipated expiration: 2033-01-04

Abstract

The utility model belongs to the field of hydraulic oil pipes, and particularly relates to a locking hydraulic pipe joint, which comprises a pipe joint, wherein the pipe joint comprises a connecting block and inner pipes communicated with the left end and the right end of the connecting block, and the outer surfaces of the inner pipes are provided with threads; the hydraulic oil pipe comprises an oil pipe body, a limiting block sleeved outside the oil pipe body and a locking nut communicated with one end of the oil pipe body, one end of the limiting block is fixedly connected with the locking nut, and the locking nut is in threaded connection with the inner pipe; the stop piece comprises a transverse plate, side plates and a first screw, the inner side surface of the transverse plate can be abutted against the outer surfaces of the connecting block and the locking nut, the two ends of the transverse plate are connected with the side plates, the side plates are perpendicular to the transverse plate and face the axis of the oil pipe body, the outer surface of the stop piece is provided with a clamping groove, and the inner ends of the side plates are matched with the clamping groove; be equipped with the through-hole on the diaphragm, corresponding the through-hole on the connecting block and seted up the blind hole, first screw inner and blind hole threaded connection, simple structure, installation are convenient.

Description

Anti-loosening hydraulic pipe joint

Technical Field

The utility model belongs to the field of hydraulic oil pipes, and particularly relates to a locking hydraulic pipe joint.

Background

In cold rolling equipment, the application of a hydraulic system is extremely wide, the hydraulic system is often connected with a hydraulic oil pipe through a hydraulic pipe joint to form a hydraulic oil way, in the strip steel rolling process, equipment such as an AGC cylinder, a bending roller, a tandem roller and the like frequently acts, so that the hydraulic oil way generates larger vibration, the connection between the hydraulic pipe joint and the hydraulic oil pipe is loose, oil leakage accidents are caused, the hydraulic straight-through pipe joint is commonly used in a rolling mill hydraulic system, and because the hydraulic straight-through pipe joint is positioned in a mill housing, spot inspection cannot be performed in the normal production process, the hydraulic oil leakage accidents can not be timely processed when the connection between the hydraulic straight-through pipe joint and the hydraulic oil pipe is loose, emulsion is polluted, the normal productivity of the rolling mill is reduced, and the maintenance cost of the rolling mill is increased.

The Chinese patent publication No. CN215908595U discloses a locking device of a hydraulic straight-through pipe joint, which is arranged at two ends of the hydraulic straight-through pipe joint in a hydraulic pipeline, wherein a first nut and a second nut of the hydraulic straight-through pipe joint are respectively connected with a first hydraulic oil pipe and a second hydraulic oil pipe, the locking device comprises a first fastening plate, a second fastening plate, a supporting plate, a connecting rod and a pressing part, the connecting rod penetrates through a third through hole in the middle of the second fastening plate, one end of the connecting rod is fixedly connected with the first fastening plate, the other end of the connecting rod is detachably fixedly connected with the supporting plate, the pressing part is arranged on the supporting plate, the first nut and the second nut are fastened between the first fastening plate and the second fastening plate, and the locking device solves the problems that an existing rolling mill hydraulic system cannot timely process when the connection between the hydraulic straight-through pipe joint and the hydraulic oil pipe is loose, thereby causing oil leakage accidents and emulsion pollution. But the device has a complex structure and is inconvenient to install.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an anti-loosening hydraulic pipe joint, which aims to solve the problems of complex structure and inconvenient installation of an anti-loosening device of the traditional hydraulic straight-through pipe joint.

The technical scheme adopted by the utility model is as follows: the anti-loosening hydraulic pipe joint comprises a pipe joint, wherein the pipe joint comprises a connecting block and an inner pipe, the connecting block is of a hollow structure, the left end and the right end of the connecting block are fixedly communicated with the inner pipe, and the outer surface of the inner pipe is provided with threads;

the hydraulic oil pipe comprises an oil pipe body, a limiting block sleeved outside the oil pipe body and a locking nut communicated with one end of the oil pipe body, one end of the limiting block is fixedly connected with the locking nut, and the locking nut is in threaded connection with the inner pipe;

the stop piece comprises a limit plate and a first screw, the limit plate comprises a transverse plate and a side plate, the inner side surface of the transverse plate can be abutted against the outer surfaces of the connecting block and the locking nut, the two ends of the transverse plate are connected with the side plates, the side plates are perpendicular to the transverse plate and face the axis of the oil pipe body, the outer surface of the limit block is provided with a clamping groove, and the inner end of the side plate is matched with the clamping groove and can be clamped into the clamping groove to limit the rotation of the limit block;

the transverse plate is provided with a through hole for a first screw to pass through, the connecting block is provided with a blind hole corresponding to the through hole, and the inner end of the first screw is in threaded connection with the blind hole.

Further, the inner side of the transverse plate is also provided with a rubber pad, and the inner side surface of the rubber pad can be abutted on the outer surfaces of the connecting block and the locking nut.

Further, the inner side face of the rubber pad is of a zigzag structure.

Further, still include adjusting part, adjusting part level sets up between two curb plates and lock nut, adjusting part includes second screw and compact heap, second screw threaded connection is on the curb plate, just the second screw runs through the curb plate and stretches into the curb plate inboard and be connected with the compact heap, the medial surface of compact heap can the butt on lock nut outer terminal surface.

Further, a spring washer is arranged between the first screw and the through hole, the spring washer is sleeved outside the first screw, and the lower surface of the spring washer is attached to the outer surface of the transverse plate.

The utility model has the beneficial effects that:

through the cooperation of coupling, connecting block, inner tube, blind hole, hydraulic oil pipe, oil pipe body, stopper, lock nut, joint groove, retaining piece, diaphragm, curb plate, first screw and through-hole use, fix diaphragm, curb plate on connecting block, stopper respectively through the threaded connection of first screw and blind hole, utilize curb plate inner and joint groove joint for coupling and lock nut screw thread intercommunication back can't rotate, in order to reach the purpose of preventing becoming flexible, thereby avoid taking place the oil leak phenomenon, the utility model simple structure, the installation is convenient.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a partial cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the pipe joint according to the present utility model;

the drawings are noted as follows:

the pipe joint 1, the connecting block 11, the inner pipe 12, the blind hole 13, the hydraulic oil pipe 2, the oil pipe body 21, the limiting block 22, the locking nut 23, the clamping groove 24, the stop piece 3, the cross plate 31, the side plate 32, the first screw 33, the through hole 34, the rubber pad 35, the spring washer 36, the adjusting component 4, the second screw 41 and the compression block 42.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," 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 present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 3, an anti-loosening hydraulic pipe joint comprises a pipe joint 1, wherein the pipe joint 1 comprises a connecting block 11 and an inner pipe 12, the connecting block 11 is of a hollow structure, the left end and the right end of the connecting block 11 are fixedly communicated with the inner pipe 12, and the outer surface of the inner pipe 12 is provided with threads;

the hydraulic oil pipe 2 comprises an oil pipe body 21, a limiting block 22 sleeved outside the oil pipe body 21 and a locking nut 23 communicated with one end of the oil pipe body 21, wherein one end of the limiting block 22 is fixedly connected with the locking nut 23, and the locking nut 23 is in threaded connection with the inner pipe 12;

the stopper 3, the stopper 3 includes limiting plate and first screw 33, the limiting plate includes diaphragm 31 and curb plate 32, the medial surface of diaphragm 31 can butt on the surface of connecting block 11 and lock nut 23, the both ends of diaphragm 31 all are connected with curb plate 32, curb plate 32 perpendicular to diaphragm 31 and towards the axis setting of oil pipe body 21, the joint groove 24 has been seted up on the surface of stopper 22, the inner of curb plate 32 with joint groove 24 looks adaptation just can block into in the joint groove 24 in order to restrict stopper 22 rotation;

the cross plate 31 is provided with a through hole 34 for the first screw 33 to pass through, the connecting block 11 is provided with a blind hole 13 corresponding to the through hole 34, and the inner end of the first screw 33 is in threaded connection with the blind hole 13.

Preferably, a rubber pad 35 is further disposed inside the transverse plate 31, and an inner side surface of the rubber pad 35 can abut against an outer surface of the connecting block 11 and the lock nut 23. Through being equipped with rubber pad 35 and butt on the surface of connecting block 11 and lock nut 23 in the inboard of diaphragm 31, can increase the frictional force between diaphragm 31 and connecting block 11 and lock nut 23 for lock nut 23 and coupling 1 are difficult for taking place to rotate, in order to reach the purpose of locking loose.

Preferably, the inner side surface of the rubber pad 35 is provided with a zigzag structure. The rubber pad 35 with the zigzag structure is arranged, so that the connection among the connecting block 11, the lock nut 23 and the transverse plate 31 is firmer, the loosening failure caused by the vibration of the hydraulic oil pipe 2 can be avoided, and the anti-loosening effect is better.

As a preferred scheme, still include adjusting part 4, adjusting part 4 level sets up between two curb plates 32 and lock nut 23, adjusting part 4 includes second screw 41 and compact heap 42, second screw 41 threaded connection is on curb plate 32, just second screw 41 runs through curb plate 32 and stretches into curb plate 32 inboard and be connected with compact heap 42, compact heap 42's medial surface can the butt on lock nut 23 outer terminal surface. Through setting up adjusting part 4 to adapting to coupling 1 and lock nut 23 of different models, through the cooperation use of second screw 41 and clamp block 42, can be according to coupling 1 and lock nut 23 of different models, rotate the position of second screw 41 regulation clamp block 42 in curb plate 32 and lock nut 23, make clamp block 42 compress tightly lock nut 23 better.

Preferably, a spring washer 36 is disposed between the first screw 33 and the through hole 34, the spring washer 36 is sleeved outside the first screw 33, and the lower surface of the spring washer 36 is attached to the outer surface of the transverse plate 31. By providing the spring washer 36, the connection between the first screw 33 and the cross plate 31 is made more stable and will not loose and fail due to the vibration of the hydraulic oil pipe 2.

The working mode of the utility model is as follows:

when the hydraulic oil pipe joint is used, the inner pipes 12 at the two ends of the connecting block 11 of the pipe joint are in threaded connection with the locking nuts 23 of the hydraulic oil pipe 2, the pipe joint 1 is screwed down, the pipe joint 1 is communicated with the hydraulic oil pipe 2 to form a whole, the inner ends of the side plates 32 are clamped into the clamping grooves 24 on the limiting blocks 22, then the through holes 34 of the transverse plates 31 are aligned with the blind holes 13 of the connecting block 11, the first screws 33 are screwed down with the blind holes 13, the inner side surfaces of the rubber pads 35 on the transverse plates 31 are abutted with the outer surfaces of the connecting block 11 and the locking nuts 23, the stop piece 3 is arranged on the pipe joint 1 and the hydraulic oil pipe 2, at the moment, the connection between the pipe joint 1 and the hydraulic oil pipe 2 is firmer, rotation is not easy to occur, and the purpose of preventing looseness is achieved, and oil leakage is avoided.

The present utility model has been described in detail above. The description of the specific embodiments is only intended to aid in understanding the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. An anti-loosening hydraulic pipe joint is characterized in that: comprising

The pipe joint (1), the pipe joint (1) comprises a connecting block (11) and an inner pipe (12), the connecting block (11) is of a hollow structure, the left end and the right end of the connecting block (11) are fixedly communicated with the inner pipe (12), and the outer surface of the inner pipe (12) is provided with threads;

the hydraulic oil pipe (2) comprises an oil pipe body (21), a limiting block (22) sleeved outside the oil pipe body (21) and a locking nut (23) communicated with one end of the oil pipe body (21), one end of the limiting block (22) is fixedly connected with the locking nut (23), and the locking nut (23) is in threaded connection with the inner pipe (12);

the stopper (3), stopper (3) include limiting plate and first screw (33), the limiting plate includes diaphragm (31) and curb plate (32), the medial surface of diaphragm (31) can the butt on the surface of connecting block (11) and lock nut (23), the both ends of diaphragm (31) all are connected with curb plate (32), curb plate (32) perpendicular to diaphragm (31) and towards the axis setting of oil pipe body (21), joint groove (24) have been seted up on the surface of stopper (22), the inner of curb plate (32) with joint groove (24) looks adaptation and can block into in order to restrict stopper (22) rotation in joint groove (24);

the transverse plate (31) is provided with a through hole (34) for a first screw (33) to pass through, the connecting block (11) is provided with a blind hole (13) corresponding to the through hole (34), and the inner end of the first screw (33) is in threaded connection with the blind hole (13).

2. The anti-loosening hydraulic pipe joint as claimed in claim 1, wherein: the inner side of the transverse plate (31) is also provided with a rubber pad (35), and the inner side surface of the rubber pad (35) can be abutted against the outer surfaces of the connecting block (11) and the locking nut (23).

3. The anti-loosening hydraulic pipe joint as claimed in claim 2, wherein: the inner side surface of the rubber pad (35) is of a zigzag structure.

4. The anti-loosening hydraulic pipe joint as claimed in claim 1, wherein: still include adjusting part (4), adjusting part (4) level sets up between two curb plates (32) and lock nut (23), adjusting part (4) are including second screw (41) and compact heap (42), second screw (41) threaded connection is on curb plate (32), just second screw (41) run through curb plate (32) and stretch into curb plate (32) inboard and be connected with compact heap (42), the medial surface of compact heap (42) can the butt on lock nut (23) outer terminal surface.

5. The anti-loosening hydraulic pipe joint as claimed in claim 1, wherein: a spring washer (36) is arranged between the first screw (33) and the through hole (34), the spring washer (36) is sleeved outside the first screw (33), and the lower surface of the spring washer (36) is attached to the outer surface of the transverse plate (31).