High-reliability hydraulic joint

Abstract

The utility model discloses a hydraulic joint with high reliability, which relates to the technical field of hydraulic joints and comprises a joint body, the joint body is tubular, plugging blocks are arranged on the inner side of the joint body close to two ends, a fixing rod is fixedly connected in the joint body, an oil groove is arranged on the fixing rod, and the oil groove is communicated with the oil groove. The plugging block is arranged to plug the pipe opening, foreign matter is prevented from being clamped into the connector or dust and the like are prevented from entering the connector, meanwhile, the plugging block can move in the pipe body, during connection, a pipeline is screwed into the connector, the plugging block is pushed to move, the movable block is made to rotate through the inner thread and the second outer thread, the penetrating holes are made to be aligned, and connection is achieved. The hydraulic oil pipeline joint has the advantages that the hydraulic oil pipeline joint is simple in structure and convenient to operate, the time for sealing the cover is saved, the sealing cover is not easy to lose, the hydraulic oil pipeline joint has a self-plugging function, and the use reliability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic joint technical field, concretely is a kind of high reliability hydraulic joint. BACKGROUND

[0002] Hydraulic pipe joint is the hydraulic system that different hydraulic components are connected to form a closed loop, it is a connecting accessory, the existing hydraulic joint when using, in installation process, it needs to be covered in the port of the joint not connected by sealing cover, prevent foreign matter and dust from entering, affect the quality and delivery of hydraulic oil.

[0003] The existing sealing cover is external sealing cover, and the joint itself does not have sealing cover structure, needs to prepare sealing cover additionally, simultaneously, sealing cover and joint are connected by thread, need to manually install sealing cover and tighten, consume certain time, cannot close joint port in time, and external sealing cover needs to be installed before joint is not installed, when installing joint, it is taken down again, it is very inconvenient to use. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of high reliability hydraulic joints to make up for the deficiency of low reliability of prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high reliability hydraulic joint, including joint body, the joint body is circular pipe, the joint body inside near two ends are equipped with blocking piece, the fixed rod is fixedly connected in the joint body, and oil groove is set up on fixed rod, the blocking piece is located in the side of fixed rod close to pipe orifice, the first spring is equipped on the fixed rod, the liquid outlet is set up on the side wall of joint body, annular fixed plate and movable plate are sleeved on the outside of joint body, fixed plate is fixedly connected with joint body, movable plate is located in the side of fixed plate close to pipe orifice, and is located at liquid outlet, second spring is fixedly connected between fixed plate and movable plate, and second spring is sleeved on the outside of joint body, internal thread and first external thread are set up on the inside and outside wall of the joint body at two ends respectively.

[0006] The above-mentioned, the blocking piece includes fixed block and movable block, annular recess is set up in the middle of fixed block, the movable block is annular, and is sleeved in recess, and the perforation is set up on the movable block and fixed block.

[0007] The above-mentioned, the perforation on the movable block and fixed block is set in error, second external thread is set up on the outer surface of movable block, and second external thread is matched with internal thread.

[0008] The above-mentioned, the insertion hole is set up on the fixed rod, the first spring is located in insertion hole, the insertion rod is fixedly connected on the fixed block, and the push plate is fixedly connected in insertion hole by the extension of insertion rod.

[0009] The movable plate is internally fixedly connected with a sealing ring, and a sealing gasket is arranged between the fixed block and the movable block and is fixedly connected to the fixed block, and an opening matched with the through hole is arranged on the sealing gasket.

[0010] Compared with the prior art, the high-reliability hydraulic connector has the following beneficial effects:

[0011] Firstly, the plugging block is arranged to plug the pipe opening, prevents foreign matters from being stuck or dust from entering the connector, and the plugging block can move in the pipe body; when connected, the pipe is screwed into the connector to move the plugging block, and the inner thread and the second outer thread are used to rotate the movable block to align the through hole, so that the connector body is in communication with the pipe to convey hydraulic oil, and the structure is simple, the operation is convenient, the time for sealing is saved, the sealing cover is not easy to lose, the plugging function is provided, and the reliability in use is improved.

[0012] Secondly, the liquid outlet is arranged on the side wall of the connector body, the movable plate is arranged on the connector body, the liquid outlet is exposed by moving the movable plate, the hydraulic oil can flow to the outside through the liquid outlet, and the outer thread is arranged on the outer wall of the connector body to be connected with the pipe having the inner thread, so that the adaptability of the connector body is improved.

[0013] Other advantages, objects and features of the present application will be set forth in part in the following specification taken in conjunction with the accompanying drawings, and in part will be apparent from the description of the application or can be learned by practice of the application. The advantages of the present application will be realized and attained by means of the instrumentalities pointed out in the written description and claims hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0015] Figure 2 It is a schematic diagram of the internal structure of the connector body of the present application;

[0016] Figure 3 It is a schematic diagram of the side view structure of the connector body of the present application;

[0017] Figure 4 It is a schematic diagram of the internal structure of the plugging block and the fixed rod of the present application.

[0018] In the figure: 1, connector body; 2, plugging block; 201, fixed block; 202, movable block; 3, fixed plate; 4, movable plate; 5, second spring; 6, insertion rod; 7, fixed rod; 8, push plate; 9, first spring; 10, sealing ring; 11, sealing gasket. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] As shown in the drawings, Figures 1-4 The utility model provides a kind of high reliability hydraulic connector, including connector body 1, connector body 1 is circular pipe, connector body 1 inside close to both ends It is equipped with plugging block 2, and perforation is opened in plugging block 2, fixedly connected with fixed rod 7 in connector body 1, and oil groove is opened in the side of fixed rod 7, plugging block 2 is located in the side of fixed rod 7 close to pipe mouth, it is equipped with first spring 9 on fixed rod 7, outlet is opened in the side wall of connector body 1, annular fixed plate 3 and movable plate 4 are sleeved on the outside of connector body 1, fixed plate 3 is fixedly connected with connector body 1, movable plate 4 is located in the side of fixed plate 3 close to pipe mouth, and is located in outlet, second spring 5 is fixedly connected between fixed plate 3 and movable plate 4, and second spring 5 is sleeved on the outside of connector body 1, internal thread and first external thread are opened respectively in the inner and outer side walls of both ends of connector body 1.

[0021] According to the overall structure of the device, when using, the both ends of connector body 1 are respectively aligned with corresponding pipelines and are inserted together, the pipelines can be connected with the pipelines having external threads through internal thread, and the pipelines can be connected with the pipelines having internal threads through first external thread, and during the process of screwing connector body 1, displacement is generated between the pipelines and connector body 1, so that the pipelines can push plugging block 2 or movable plate 4 to move, so that perforation or outlet is opened to transport hydraulic oil.

[0022] As shown in the drawings, Figure 4 Plugging block 2 includes fixed block 201 and movable block 202, annular groove is opened in the middle of fixed block 201, movable block 202 is annular and is sleeved in the groove, perforation is opened in the left and right sides of movable block 202 and fixed block 201, and the perforation of movable block 202 and fixed block 201 is arranged in staggered mode, second external thread is opened in the outer surface of movable block 202, and the second external thread matches with internal thread.

[0023] Hydraulic oil can flow through plugging block 2 through perforation, movable block 202 can be caused to stagger and align the perforation by rotating through the movable connection between movable block 202 and fixed block 201, and movable block 202 can be automatically deflected during the movement of plugging block 2 through the thread connection between second external thread and internal thread, so that plugging block 2 is automatically realized to be open and closed during the connection and separation process.

[0024] As Figure 4 shown, the fixed rod 7 is provided with a socket, the first spring 9 is located in the socket, the fixed block 201 is fixedly connected with the plug rod 6, and the plug rod 6 extends into the socket and is fixedly connected with the push plate 8.

[0025] The first spring 9 is used to push the blocking block 2 to reset, the blocking block 2 drives the plug rod 6 to move when the blocking block 2 moves, and the push plate 8 is compressed, and when the joint body 1 is disconnected with the pipeline, the first spring 9 is reset, the blocking block 2 is reversely pushed by the push plate 8 and the plug rod 6 to move towards the pipe opening, and the pipe opening is closed, so that foreign matter is prevented from being stuck and dust is prevented from entering.

[0026] As Figure 4 shown, the movable plate 4 is fixedly connected with the sealing ring 10 on the inner side, and the blocking block 2 is fixedly connected with the sealing gasket 11 on the side close to the pipe opening, and the sealing gasket 11 is provided with an opening matched with the through hole.

[0027] The sealing ring 10 and the sealing gasket 11 are used to isolate the liquid outlet and the gap between the blocking block 2 and the pipe opening, respectively, so as to improve the sealing performance and prevent dust from entering and hydraulic oil from leaking.

[0028] Working principle: in use, the two ends of the joint body 1 are respectively aligned with the corresponding pipelines and are inserted together, the pipelines can be connected with the pipelines having external threads through the internal threads, and the pipelines having internal threads can be connected through the first external threads, and during the process of screwing the joint body 1, displacement is generated between the pipelines and the joint body 1, so that the pipelines can push the blocking block 2 or the movable plate 4 to move, the internal threads and the second external threads make the movable block 202 rotate, the through hole is aligned or the pipelines push the movable plate 4 to move, and the liquid outlet is exposed, so as to conduct the inside of the joint body 1 and transport the hydraulic oil, and the movement of the blocking block 2 and the movable plate 4 compresses the first spring 9 and the second spring 5, and after the connection is disconnected, the blocking block 2 and the movable plate 4 can be reset by the elastic force of the first spring 9 and the second spring 5, the pipe opening and the liquid outlet are automatically closed, the pipelines having internal threads and external threads can be connected through the first external threads and the internal threads, and the adaptability is improved.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-reliability hydraulic joint comprising a joint body (1), characterized in that: The joint body (1) is a circular tube, the joint body (1) is provided with a blocking block (2) near both ends, and the blocking block (2) is provided with a perforation, the joint body (1) is fixedly connected with a fixed rod (7), and the fixed rod (7) is provided with an oil groove, the blocking block (2) is located on the side of the fixed rod (7) close to the pipe opening, the fixed rod (7) is provided with a first spring (9), the joint body (1) is provided with a liquid outlet on the side wall, the joint body (1) is provided with a ring-shaped fixed plate (3) and a movable plate (4) on the outside, the fixed plate (3) is fixedly connected with the joint body (1), the movable plate (4) is located on the side of the fixed plate (3) close to the pipe opening and at the liquid outlet, the fixed plate (3) and the movable plate (4) are fixedly connected with a second spring (5), and the second spring (5) is provided on the outside of the joint body (1), the joint body (1) is provided with an internal thread and a first external thread on the inner and outer side walls at both ends.

2. A high reliability hydraulic connector according to claim 1, characterized in that: The blocking block (2) comprises a fixed block (201) and a movable block (202), the fixed block (201) is provided with an annular groove in the middle, the movable block (202) is annular and is sleeved in the groove, and the movable block (202) is provided with a perforation on the left and right sides and the fixed block (201).

3. A high reliability hydraulic connector according to claim 2, characterized in that: The perforations on the movable block (202) and the fixed block (201) are arranged in a staggered manner, the movable block (202) is provided with a second external thread on the outer surface, and the second external thread is matched with the internal thread.

4. A high reliability hydraulic connector according to claim 2, characterized in that: The fixed rod (7) is provided with a insertion hole, the first spring (9) is located in the insertion hole, the fixed block (201) is fixedly connected with an insertion rod (6), and the insertion rod (6) is fixedly connected with a push plate (8) extending into the insertion hole.

5. A high reliability hydraulic connector according to claim 2, wherein: The movable plate (4) is fixedly connected with a sealing ring (10) on the inside, the fixed block (201) and the movable block (202) are provided with a sealing gasket (11), the sealing gasket (11) is fixedly connected to the fixed block (201), and the sealing gasket (11) is provided with an opening matched with the perforation.

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