CN219221580U - Hydraulic pipe rotary joint - Google Patents

Abstract

The utility model discloses a rotary joint of a hydraulic pipe, which relates to the technical field of hydraulic pipe fittings and comprises a first joint, a second joint and an inner telescopic pipe, and is characterized in that the outer side wall of one end of the inner telescopic pipe is attached to the inner side wall of the first joint and detachably connected with the inner side wall of the first joint, the outer side wall of the other end of the inner telescopic pipe is attached to the inner side wall of the second joint and detachably connected with the inner side wall of the second joint, and a connecting mechanism is arranged between the first joint and the second joint so that the first joint and the second joint can relatively displace. The utility model can reduce the abrasion between the first joint or the second joint and the inner telescopic pipe, improve the tightness and avoid leakage.

Description

Hydraulic pipe rotary joint

Technical Field

The utility model relates to the technical field of hydraulic pipe fittings, in particular to a hydraulic pipe rotary joint.

Background

The hydraulic pipe joint is a part for connecting the high-pressure oil pipe and the high-pressure oil pipe in the hydraulic system. The hydraulic pipe joint can be divided into a hydraulic hose, a high-pressure ball valve, a quick connector, a clamping sleeve type pipe joint, a welding type pipe joint, a high-pressure hose, a transition type pipe joint, a three-way pipe joint, a non-standard pipe joint, a flaring type pipe joint, a right-angle pipe joint, a rotary pipe joint, a quick connector, a stainless steel joint and a copper joint.

However, the current hydraulic pipe joint is easy to leak after being used for a period of time, and particularly because a certain tensile force is generated on the rotary joint by the installation and rotation stopping modes of the metal hose, the tensile force can accelerate the abrasion of a sealing element in the rotary joint, so that the sealing effect of the rotary joint is poor, and the leakage phenomenon is caused.

Disclosure of Invention

The present utility model is directed to a hydraulic pipe rotary joint, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a hydraulic pipe rotary joint, includes first joint, second joint and interior flexible pipe, interior flexible pipe one end lateral wall with first joint inside wall laminating and can dismantle between the two and be connected, interior flexible pipe other end lateral wall with second joint inside wall laminating and can dismantle between the two and be connected, first joint with be equipped with coupling mechanism between the second joint so that can take place relative displacement between first joint and the second joint.

Further preferably, the inner telescopic tube is detachably connected with the first joint through a screw, and the inner telescopic tube is detachably connected with the second joint through a screw.

Further preferably, the first joint sleeve is provided with an outer extension pipe, the outer extension pipe is inserted into the second joint, the inner side wall of the first joint is attached to the outer side wall of the outer extension pipe, the first joint is detachably connected with the outer extension pipe through a screw, and the second joint is detachably connected with the outer extension pipe through a screw.

Still preferably, the connecting mechanism comprises a first connecting plate and a second connecting plate, the first connecting plate is fixedly connected with the first joint, the second connecting plate is fixedly connected with the second joint, the first connecting plate is provided with a sliding groove, the second connecting plate is fixedly connected with a sliding column, the sliding column slides in the sliding groove, and the sliding column is connected with the first joint through an elastic piece.

Further preferably, the number of the first connection plates and the number of the second connection plates are two.

Further preferably, the elastic member includes a collar and a spring, the collar is sleeved on the sliding column, one end of the spring is fixedly connected with the collar, and the other end of the spring is fixedly connected with the first joint.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, one end of the inner telescopic pipe is connected with the first joint, the other end of the inner telescopic pipe is connected with the second joint, when the first joint or the second joint generates tensile force, the tensile force can be counteracted through the expansion and contraction of the inner telescopic pipe, so that the abrasion between the inner telescopic pipe and the first joint or the second joint is avoided, the sealing effect of the first joint and the second joint is improved, the leakage is further avoided, and the working efficiency is improved.

2. According to the utility model, the first connector and the second connector are connected through the first connecting plate, the second connecting plate, the sliding column, the lantern ring and the spring, when the inner telescopic pipe stretches, the sliding column can slide in the sliding groove, so that shaking in the movement process is reduced, and the stability of the device is improved.

3. The outer side walls of the first connector and the second connector are provided with the outer extensions, so that the inner springs, the first connecting plate, the second connecting plate and other parts can be protected, and the durability of the device is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of a rotary joint for hydraulic pipes according to the present utility model.

Fig. 2 is a schematic diagram of the internal structure of fig. 1.

FIG. 3 is a schematic view of the structure of the inner telescopic tube of the present utility model.

Fig. 4 is a schematic diagram of a connection structure of the first connector, the second connector and the connection mechanism according to the present utility model.

FIG. 5 is a schematic view of the connecting mechanism of the present utility model.

In the figure: 1. a first joint; 2. a second joint; 3. an inner telescopic tube; 4. a connecting mechanism; 41. a first connection plate; 42. a second connecting plate; 43. a chute; 44. a spool; 45. an elastic member; 451. a collar; 452. a spring; 5. a screw; 6. and (5) extending the shrinkage tube.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, a rotary joint for hydraulic pipes comprises a first joint 1, a second joint 2 and an inner telescopic pipe 3, wherein the outer side wall of one end of the inner telescopic pipe 3 is attached to the inner side wall of the first joint 1 and is detachably connected with the inner side wall of the first joint, the outer side wall of the other end of the inner telescopic pipe 3 is attached to the inner side wall of the second joint 2 and is detachably connected with the inner side wall of the second joint, and a connecting mechanism 4 is arranged between the first joint 1 and the second joint 2 so that relative displacement can occur between the first joint 1 and the second joint 2.

The first joint 1 and the second joint 2 are the same in structure and size, the first joint 1 and the second joint 2 are of hollow structures, the inner telescopic tube 3 is of a hollow structure, the inner telescopic tube 3 is located in the first joint 1 and the second joint 2, when the first joint 1 generates tensile force, the inner telescopic tube 3 stretches out and draws back along with the movement of the first joint 1, when the second joint 2 generates tensile force, the inner telescopic tube 3 stretches out and draws back along with the movement of the second joint 2, the inner telescopic tube 3 meets certain strength requirements, protrusions are arranged at two ends of the inner telescopic tube 3, one of the protrusions is attached to the inner side wall of the first joint 1, the protrusions enable the inner telescopic tube 3 to be attached to the inner side wall of the first joint 1, the other protrusion is attached to the inner side wall of the second joint 2, the protrusions enable the inner telescopic tube 3 to be sealed with the second joint 2, hydraulic oil passing through between the first joint 1, the second joint 2 and the inner telescopic tube 3 cannot flow out from the joint 3 or the joint 2, and good sealing performance of the device is guaranteed.

As shown in fig. 2 and 3, the inner telescopic tube 3 is detachably connected with the first joint 1 by a screw 5, and the inner telescopic tube 3 is detachably connected with the second joint 2 by a screw 5.

The screw 5 is used for connecting the connecting rod, so that the connecting strength can be ensured, and the connecting rod is convenient for workers to detach, flexible and convenient.

As shown in fig. 4 and 5, the connection mechanism 4 includes a first connection plate 41 and a second connection plate 42, the first connection plate 41 is fixedly connected with the first joint 1, the second connection plate 42 is fixedly connected with the second joint 2, the first connection plate 41 is provided with a sliding slot 43, the second connection plate 42 is fixedly connected with a sliding column 44, the sliding column 44 slides in the sliding slot 43, and the sliding column 44 is connected with the first joint 1 through an elastic member 45.

When the first connector 1 moves, the spring 452 is driven to be stretched, meanwhile, the first connecting plate 41 is attached to the sliding column 44 to move, when the second connector 2 moves, the second connector 2 drives the sliding column 44 to move through the second connecting plate 42, the sliding column 44 drives the spring 452 to be stretched through the sleeve ring 451, meanwhile, the sliding column 44 can slide in the sliding groove 43, the first connector 1 or the second connector 2 moves, meanwhile, the inner telescopic tube 3 can move along with the movement, shaking in the moving process can be relieved through the first connecting plate 41, the second connecting plate 42, the sliding column 44 and the spring 452, and stability of the first connector 1 or the second connector 2 in the moving process is improved.

As shown in fig. 1 and 2, the first connector 1 is sleeved with an outer telescopic tube 6, the outer telescopic tube 6 is inserted into the second connector 2, the inner side walls of the first connector 1 and the second connector 2 are attached to the outer side wall of the outer telescopic tube 6, the first connector 1 is detachably connected with the outer telescopic tube 6 through a screw 5, and the second connector 2 is detachably connected with the outer telescopic tube 6 through a screw 5.

The first joint 1 or the second joint 2 can drive the outer shrinkage tube 6 to move together when moving, and simultaneously the outer shrinkage tube 6 is positioned at the outer sides of the first connecting plate 41 and the second connecting plate 42, and the outer shrinkage tube 6 can protect parts such as the first connecting plate 41 and the second connecting plate 42 inside, so that the damage to the outside, such as the first connecting plate 41 and the second connecting plate 42, is reduced, and the durability of the device is improved.

As shown in fig. 2 and 4, the number of the first connecting plates 41 and the second connecting plates 42 is two.

The purpose of the two first connecting plates 41 and the second connecting plates 42 is to avoid rollover in the movement process of the first connector 1 or the second connector 2, ensure the balance of the first connector 1 and the second connector 2, and further improve the stability in the movement process.

As shown in fig. 4 and 5, the elastic member 45 includes a collar 451 and a spring 452, the collar 451 is sleeved on the sliding post 44, one end of the spring 452 is fixedly connected with the collar 451, and the other end of the spring 452 is fixedly connected with the first joint 1.

The lantern ring 451 can move along with the movement of the sliding column 44 in the horizontal direction, when the first joint 1 or the second joint 2 deflects at a slight angle in the movement process, the lantern ring 451 can rotate on the sliding column 44, so that the device can be ensured to normally operate, the applicability of the device is improved, and the device is prevented from being blocked.

Working principle: the hydraulic oil passes through the passageway that first joint 1, interior flexible pipe 3 and second connect 2 are constituteed, when installation or adjustment in-process, first joint 1 produces tensile force, first joint 1 can drive interior flexible pipe 3 and the motion of overhanging joint 6, simultaneously first joint 1 drives spring 452 and first joint board 41 motion, spring 452 is stretched, first joint board 41 laminating strut 44 moves, when second joint 2 produced tensile force, second joint 2 drives interior flexible pipe 3 and overhanging joint 6 motion, second joint 2 drives second connecting plate 42 motion, second connecting plate 42 drives strut 44 and slides in spout 43, the sliding column 44 drives lantern ring 451 motion, lantern ring 451 drives spring 452 and is stretched, through the motion of interior flexible pipe 3, can alleviate interior flexible pipe 3 and first joint 1, the leakproofness of second joint 2, avoid taking place to leak, through the motion of first joint board 41, second connecting plate 42 and spring 452, stability in the motion process can be guaranteed.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a hydraulic pipe rotary joint, includes first joint (1), second joint (2) and interior flexible pipe (3), its characterized in that, interior flexible pipe (3) one end with first joint (1) can dismantle and be connected, interior flexible pipe (3) other end with second joint (2) can dismantle and be connected, first joint (1) with be equipped with coupling mechanism (4) between second joint (2) so that can take place relative displacement between first joint (1) and the second joint (2).

2. A hydraulic pipe swivel joint according to claim 1, characterized in that the inner telescopic pipe (3) is detachably connected to the first joint (1) by means of a screw (5), and the inner telescopic pipe (3) is detachably connected to the second joint (2) by means of a screw (5).

3. The hydraulic pipe rotary joint according to claim 1, wherein the first joint (1) is sleeved with an outer telescopic pipe (6), the outer telescopic pipe (6) is inserted into the second joint (2), the inner side walls of the first joint (1) and the second joint (2) are attached to the outer side wall of the outer telescopic pipe (6), the first joint (1) and the outer telescopic pipe (6) are detachably connected through a screw (5), and the second joint (2) and the outer telescopic pipe (6) are detachably connected through the screw (5).

4. A hydraulic pipe rotary joint according to claim 1, characterized in that the connecting mechanism (4) comprises a first connecting plate (41) and a second connecting plate (42), the first connecting plate (41) is fixedly connected with the first joint (1), the second connecting plate (42) is fixedly connected with the second joint (2), the first connecting plate (41) is provided with a sliding groove (43), the second connecting plate (42) is fixedly connected with a sliding column (44), the sliding column (44) slides in the sliding groove (43), and the sliding column (44) is connected with the first joint (1) through an elastic piece (45).

5. A hydraulic pipe swivel according to claim 4, characterized in that the number of the first connection plates (41) and the second connection plates (42) is two.

6. The hydraulic pipe rotary joint according to claim 4, wherein the elastic member (45) comprises a collar (451) and a spring (452), the collar (451) is sleeved on the sliding column (44), one end of the spring (452) is fixedly connected with the collar (451), and the other end of the spring (452) is fixedly connected with the first joint (1).

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