Hydraulic quick-change connector convenient to overhaul

Abstract

The utility model relates to the technical field of quick connectors, in particular to a hydraulic quick-change connector convenient to overhaul, a pipeline is clamped by an outer anti-falling sleeve and an inner anti-falling sleeve by rotating an inner retracting thread bushing, sealing connection is completed, the effect of quick installation is achieved, an unlocking ring is rotated, the unlocking ring drives four ejector blocks to rotate, and the hydraulic quick-change connector is convenient to overhaul. When the quick connector body is pulled out, the rotating ejector block enables the clamping block to lose constraint, then the clamping block is pressed to enable the clamping block to rotate to be separated from the clamping groove, the quick connector body can be pulled out so that the quick connector body can be maintained and replaced, and in the pulling-out process of the quick connector body, the sealing block loses constraint of the ejector rod and blocks the opening of the pipe connecting head under the action of the elastic force of the spring. The second sealing gasket at the side end of the sealing block can form sealing between the sealing block and the pipe connecting head, leakage of hydraulic oil in a pipeline is avoided, the clamping block can be separated from the clamping groove by rotating the unlocking ring, disassembly of the quick connector body is completed, and the effects of facilitating overhauling and avoiding leakage during overhauling are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of quick connectors, in particular to a hydraulic quick-change connector which is easy to repair. Background Art

[0002] Hydraulic quick connectors are connectors used to quickly connect and disconnect hydraulic systems. They are widely used in various industrial fields. Their main features include easy operation, quick connection and separation without tools, and optimal performance under high temperature and high pressure.

[0003] Existing Chinese patent: A thread-locking hydraulic quick-change connector, patent number: CN215635517U, including a female connector and a male connector, a cover plate is provided on the surface of the female connector, an internal thread is provided on the inner wall of the cover plate, and an external thread is provided on the circumferential surface of the male connector, the internal thread and the external thread match, the cover plate is threadedly connected to the circumferential surface of the male connector, and the cover plate is used to fasten the female connector and the male connector by threaded connection; a group of one-way valve assemblies are provided in the female connector and the male connector, and the one-way valve assemblies are used to ensure that the liquid in the pipeline will not overflow during replacement, which can facilitate the staff to timely understand the internal situation of the connector, and in the process of daily inspection, it can timely judge whether the thread is loose according to the distance between the cover plate and the limit block, thereby judging whether the pipeline connection is loose, which is convenient for the staff to repair or tighten in time.

[0004] However, in the process of implementing the above technical solution, it was found that there are at least the following technical problems: in order to ensure the stability of the connection, the above-mentioned connector usually adopts a fixed connection method such as gluing to connect the pipeline and the connector, which is troublesome when the connector needs to be repaired and replaced. When the connector is disconnected from the pipeline, it will also cause the hydraulic oil in the pipeline to leak. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a hydraulic quick-change connector that is easy to maintain, which solves the problem that the above-mentioned connector usually uses a fixed connection method such as gluing to connect the pipeline and the connector to ensure the stability of the connection, which is troublesome when the connector needs to be repaired and replaced, and when the connector is disconnected from the pipeline, it may cause the hydraulic oil in the pipeline to leak.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A hydraulic quick-change joint that is easy to maintain comprises two connecting pipe heads and a quick-connector body, four clamping blocks are evenly rotatably installed on the side ends of the connecting pipe heads, a first sealing gasket is fixedly installed on the side ends of the connecting pipe heads, an unlocking ring is rotatably installed on the connecting pipe heads, four top blocks are evenly fixedly installed on the unlocking ring, and eight clamping grooves are symmetrically provided at both ends of the quick-connector body; the two connecting pipe heads are respectively located at the two ends of the quick-connector body, a sealing block is slidably installed inside the connecting pipe heads, a second sealing gasket is fixedly installed on the side ends of the sealing block, a spring is fixedly installed on the side ends of the sealing block, two top rods are symmetrically fixedly installed at both ends of the quick-connector body, and an inner anti-drop sleeve is fixedly installed on the outer side wall of the connecting pipe head.

[0010] Preferably, an outer anti-drop sleeve is fixedly mounted on the outer side wall of the connecting pipe head.

[0011] Preferably, an inner thread sleeve is threadedly mounted on the outer side wall of the connecting pipe head.

[0012] (III) Beneficial effects

[0013] 1. During installation and use, insert the pipe into the gap formed by the internal threaded sleeve and the connecting pipe head, so that the pipe is sleeved on the internal anti-dropout sleeve, and then rotate the internal threaded sleeve clockwise. Since the internal threaded sleeve is threadedly connected to the connecting pipe head, the internal threaded sleeve will slide along the connecting pipe head. During the sliding process of the internal threaded sleeve, the sloped inner wall of the internal threaded sleeve will squeeze the outer anti-dropout sleeve, so that the outer anti-dropout sleeve will gather inward and clamp the pipe, so that the inner anti-dropout sleeve and the outer anti-dropout sleeve can be close to the inner and outer side walls of the pipe to form a seal, so that the pipe can be connected and installed with the connecting pipe head, and the outer anti-dropout sleeve and the inner anti-dropout sleeve are clamped to the pipe by rotating the internal threaded sleeve to complete the sealed connection, thereby achieving the effect of quick installation.

[0014] 2. When the quick connector body needs to be repaired or replaced, rotate the unlocking ring, which will drive the four top blocks to rotate. The rotating top block will make the card block lose its constraint, and then press the card block to rotate and disengage from the card slot, and then pull out the quick connector body for maintenance and replacement. In the process of pulling out the quick connector body, the sealing block loses the constraint of the push rod and will block the opening of the connecting head under the action of the spring force. The second sealing gasket at the side end of the sealing block can form a seal between the sealing block and the connecting head to avoid leakage of the hydraulic oil in the pipeline. The card block can be disengaged from the card slot by rotating the unlocking ring, and the quick connector body can be disassembled, which facilitates maintenance and avoids leakage during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 This is a main structural diagram of the quick connector of the utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the main body of the quick connector of the utility model;

[0018] Figure 3 It is the exploded structure diagram of the utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the pipe joint of the utility model;

[0020] Figure 5 For this utility model Figure 3 A magnified structural diagram;

[0021] Figure 6 For this utility model Figure 4 Enlarged structural diagram at point B.

[0022] Legend: 1. Pipe joint; 2. Quick connector body; 3. Clamp block; 4. Clamp groove; 5. Push rod; 6. Unlocking ring; 7. Push block; 8. First sealing gasket; 9. Inner threaded sleeve; 11. Inner anti-drop sleeve; 12. Outer anti-drop sleeve; 13. Spring; 14. Sealing block; 15. Second sealing gasket. DETAILED DESCRIPTION

[0023] The embodiment of the present application effectively solves the above-mentioned connecting head by providing a hydraulic quick-change connector which is easy to maintain. In order to ensure the stability of the connection, the pipe and the connecting head are usually connected by a fixed connection method such as gluing, which is troublesome when the connecting head needs to be repaired and replaced. When the connecting head is disconnected from the pipe, it may also cause the hydraulic oil in the pipe to leak. During installation and use, the pipe is inserted into the gap formed by the inner threaded sleeve and the connecting head, so that the pipe is sleeved on the inner anti-slip sleeve, and then the inner threaded sleeve is rotated clockwise. Since the inner threaded sleeve is threadedly connected to the connecting head, the inner threaded sleeve will slide along the connecting head. During the sliding process of the inner threaded sleeve, the inner side wall of the inner threaded sleeve with a slope will squeeze the outer anti-slip sleeve, so that the outer anti-slip sleeve is aggregated inwardly to clamp the pipe, so that the inner anti-slip sleeve and the outer anti-slip sleeve can be close to the inner and outer walls of the pipe to form a tight seal. The second sealing pad at the side end of the sealing block can form a seal between the sealing block and the connecting head to prevent leakage of the hydraulic oil in the pipeline, and the card block can be separated from the card slot by rotating the unlocking ring to complete the disassembly of the quick connector body, thereby achieving the effect of facilitating maintenance and avoiding leakage during maintenance.

[0024] Example

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the technical solution in the embodiment of the present application effectively solves the above-mentioned connector. In order to ensure the stability of the connection, the pipeline and the connector are usually connected by a fixed connection method such as gluing. When the connector needs to be repaired and replaced, it is troublesome. When the connector is disconnected from the pipeline, it will also cause the hydraulic oil in the pipeline to leak. The overall idea is as follows:

[0026] In view of the problems existing in the prior art, the utility model provides a hydraulic quick-change connector that is easy to maintain, including two connecting heads 1 and a quick connector body 2, four clamping blocks 3 are evenly rotatably installed on the side ends of the connecting heads 1, a first sealing gasket 8 is fixedly installed on the side ends of the connecting heads 1, an unlocking ring 6 is rotatably installed on the connecting head 1, and four top blocks 7 are evenly fixedly installed on the unlocking ring 6.

[0027] Eight card slots 4 are symmetrically provided at both ends of the quick connector body 2; two connecting pipe heads 1 are respectively located at both ends of the quick connector body 2, and a sealing block 14 is slidably installed inside the connecting pipe head 1, a second sealing gasket 15 is fixedly installed on the side end of the sealing block 14, and a spring 13 is fixedly installed on the side end of the sealing block 14.

[0028] Two push rods 5 are symmetrically fixedly installed at both ends of the quick connector body 2, an inner anti-dropout sleeve 11 is fixedly installed on the outer wall of the connecting head 1, an outer anti-dropout sleeve 12 is fixedly installed on the outer wall of the connecting head 1, and an inner threaded sleeve 9 is threadedly installed on the outer wall of the connecting head 1.

[0029] Working principle:

[0030] The first step is to insert the pipe into the gap formed by the inner threaded sleeve 9 and the connecting pipe head 1 during installation and use, so that the pipe is sleeved on the inner anti-dropout sleeve 11, and then rotate the inner threaded sleeve 9 clockwise. Since the inner threaded sleeve 9 is threadedly connected to the connecting pipe head 1, the inner threaded sleeve 9 will slide along the connecting pipe head 1. During the sliding process of the inner threaded sleeve 9, the inner side wall of the inner threaded sleeve 9 with a slope will squeeze the outer anti-dropout sleeve 12, so that the outer anti-dropout sleeve 12 is aggregated inward to clamp the pipe, so that the inner anti-dropout sleeve 11 and the outer anti-dropout sleeve 12 can be close to the inner and outer side walls of the pipe to form a seal, so that the pipe can be connected and installed with the connecting pipe head 1, and the outer anti-dropout sleeve 12 and the inner anti-dropout sleeve 11 are clamped to the pipe by rotating the inner threaded sleeve 9 to complete the sealed connection, thereby achieving the effect of quick installation.

[0031] In the second step, during normal use, the top block 7 is located below the card block 3 so that the card block 3 is stuck in the card slot 4, the quick connector body 2 is fixed, and the first sealing gasket 8 forms a seal between the pipe joint 1 and the quick connector body 2. The top rod 5 in the quick connector body 2 will resist the sealing block 14, so that the sealing block 14 slides inside the pipe joint 1, and the second sealing gasket 15 is separated from the opening on the pipe joint 1. The hydraulic energy can flow inside. When the quick connector body 2 needs to be repaired or replaced, the unlocking ring 6 is rotated, and the unlocking ring 6 will drive the four top blocks 7 to rotate. The rotating top block 7 will make the card block 3 lose its constraint, and then press the card block. 3 makes the clamping block 3 rotate and disengage from the clamping slot 4, and the quick connector body 2 can be pulled out, so as to perform maintenance and replacement on the quick connector body 2. During the process of pulling out the quick connector body 2, the sealing block 14 loses the constraint of the push rod 5 and blocks the opening of the connecting pipe head 1 under the action of the elastic force of the spring 13. The second sealing gasket 15 at the side end of the sealing block 14 can form a seal between the sealing block 14 and the connecting pipe head 1 to prevent the hydraulic oil in the pipeline from leaking. The clamping block 3 can be disengaged from the clamping slot 4 by rotating the unlocking ring 6, and the quick connector body 2 can be disassembled, so as to facilitate maintenance and avoid leakage during maintenance.

[0032] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A hydraulic quick-change joint that is easy to repair, comprising two connecting heads (1) and a quick-change joint body (2), characterized in that: Four clamping blocks (3) are evenly rotatably mounted on the side end of the pipe joint (1), a first sealing gasket (8) is fixedly mounted on the side end of the pipe joint (1), an unlocking ring (6) is rotatably mounted on the pipe joint (1), four top blocks (7) are evenly fixedly mounted on the unlocking ring (6), and eight clamping grooves (4) are symmetrically formed at both ends of the quick connector body (2); The two connecting pipe heads (1) are respectively located at two ends of the quick connector body (2).

2. A hydraulic quick-change joint that is easy to maintain as claimed in claim 1, characterized in that: A sealing block (14) is slidably mounted inside the pipe joint (1), a second sealing pad (15) is fixedly mounted on the side end of the sealing block (14), and a spring (13) is fixedly mounted on the side end of the sealing block (14).

3. A hydraulic quick-change joint that is easy to maintain as claimed in claim 1, characterized in that: Two push rods (5) are symmetrically fixedly mounted on both ends of the quick connector body (2).

4. A hydraulic quick-change joint that is easy to maintain as claimed in claim 1, characterized in that: An inner anti-drop sleeve (11) is fixedly mounted on the outer side wall of the pipe joint (1).

5. The hydraulic quick-change joint for easy maintenance as claimed in claim 1, characterized in that: An outer anti-drop sleeve (12) is fixedly mounted on the outer side wall of the pipe joint (1).

6. A hydraulic quick-change joint that is easy to maintain as claimed in claim 1, characterized in that: An inner thread sleeve (9) is threadedly mounted on the outer side wall of the pipe joint (1).

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