Anti-loose hydraulic pipe joint

Abstract

The utility model discloses an anti-loose hydraulic pipe joint, which relates to the field of hydraulic pipe joints, and comprises a joint main body, the outer ring of one end part of the joint main body is provided with a connecting thread I, the other end part of the joint main body is internally provided with a mounting groove, and the inside of the mounting groove is in threaded connection with a hydraulic pipe; the connector body is in threaded connection with the hydraulic pipe. The end portion of the hydraulic pipe is aligned with the mounting groove, then the hydraulic pipe is twisted so that the hydraulic pipe can be in threaded connection with the connector body, the two clamping blocks are shifted so that the two clamping blocks can be located in the clamping portion of the limiting circular ring, and then the rotating block is rotated to drive the clamping blocks to rotate. And meanwhile, the rotating block in threaded connection with the connector body is rotated to make the rotating block displace, in this way, it is guaranteed that the clamping block is attached to the clamping part, connection between the connector body and the hydraulic pipe is prevented from loosening, and meanwhile secondary limiting connection and multiple times of threaded connection also guarantee firm connection between the connector body and the hydraulic pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hydraulic pipe joint, concretely relates to a anti-loose hydraulic pipe joint. BACKGROUND

[0002] The hydraulic joint is a key component connecting the pipeline and pipe fitting in the hydraulic system, which realizes the connection of different pipelines and pipe fittings. The hydraulic pipe joint is a hydraulic system connecting different hydraulic elements (pump, conveying pipeline, reversing valve, stop valve, hydraulic motor, hydraulic cylinder, and some auxiliary elements such as liquid level meter, thermometer, pressure gauge, etc.) to form a closed loop. The hydraulic pipe joint is a component that connects the pipeline and pipe fitting, and ensures the flow and transmission of liquid. The hydraulic joint is mainly divided into two types, namely threaded joint and flange joint, which have good sealing performance and durability, and can maintain good working effect in high pressure and high temperature environment.

[0003] The existing Chinese patent authorization announcement number: CN219177135U provides a hydraulic pipe joint, which comprises a hydraulic pipe joint and a hydraulic pipe. The hydraulic pipe is connected with the hydraulic pipe joint through sliding connection. An installation groove is formed on the hydraulic pipe. A sealing gasket is arranged on the outer side of the hydraulic pipe joint. A fixing assembly is arranged on the hydraulic pipe joint. The limiting spring is compressed by the sliding block. The positioning block is retracted into the fixed block. When the installation groove on the hydraulic pipe moves to the positioning block, the pressure of the limiting spring disappears. The limiting spring drives the positioning block to reset and insert into the installation groove through the sliding block. The hydraulic pipe is fixed and limited. The hydraulic pipe and the hydraulic pipe joint can be connected. When the hydraulic pipe joint and the hydraulic pipe are connected, the hydraulic pipe can be inserted into the hydraulic pipe joint by pushing the hydraulic pipe. The hydraulic pipe and the hydraulic pipe joint can be connected and fixed simply and conveniently, which saves time and effort.

[0004] The above-mentioned hydraulic pipe joint has the following problems when connected with the hydraulic pipe: the stability of the above-mentioned limiting spring is poor. When the hydraulic pipe and the hydraulic pipe joint are used, the pressure generated by the liquid flowing through the interface part may cause the connection effect of the hydraulic pipeline and the hydraulic pipe joint to be poor, which may cause the machine equipped with the hydraulic pipe and the hydraulic pipe joint to malfunction.

[0005] Therefore, it is necessary to invent an anti-loose hydraulic pipe joint to solve the above-mentioned problems. Utility model content

[0006] The utility model discloses a purpose is provided with a kind of anti-loose hydraulic pipe joint, to solve the stability of the above-mentioned limiting spring in the above background art is poor, so when the hydraulic pipe and hydraulic pipe joint are used, the pressure generated by liquid flowing through interface position can cause the connection effect of hydraulic pipeline and hydraulic pipe joint to be poor, so that the machine using of the hydraulic pipe and hydraulic pipe joint installed occurs the problem of failure.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: an anti-loose hydraulic pipe joint, including joint main part, the outer circle of one end of the joint main part is provided with connecting thread one, the inner of another end of the joint main part is provided with installation groove, and the inside of installation groove is threadedly connected with hydraulic pipe, and the joint main part is realized with the thread connection of hydraulic pipe, and the thread connection has self-locking, to further guarantee the firm connection of joint main part and hydraulic pipe, the outer circle of the hydraulic pipe is fixedly sleeved with limiting ring, and the inner wall of the hydraulic pipe is fixedly connected with sealing ring, further including:

[0008] Secondary limiting assembly, the outer wall of the joint main part is provided with connecting thread three, and the outer circle of connecting thread three is threadedly connected with rotating block, and the inside of rotating block is provided with notch, and the inner wall of notch is rotatably connected with clamping block through rotating rod, the clamping block is matched with the clamping portion provided in the inside of limiting ring, and secondary limiting connection and multiple thread connection also guarantee the firm connection of joint main part and hydraulic pipe.

[0009] Preferably, the outer wall of the upper end of the hydraulic pipe is provided with connecting thread two, and the connecting thread two is threadedly connected with the thread groove provided in the inside of annular installation groove, and the thread connection has self-locking, to further guarantee the firm connection of joint main part and hydraulic pipe.

[0010] Preferably, the sealing ring and the limiting ring are located at the same horizontal position, and the distance between the sealing ring and the limiting ring and the upper end of the hydraulic pipe is equal to the depth of the installation groove, so that after the complete installation of the joint main part and the hydraulic pipe, the end of the joint main part is abutted together with the limiting ring and the sealing ring, to guarantee the sealing property of the joint main part and the hydraulic pipe connection.

[0011] Preferably, the notch is provided with two places in quantity, and the two notches are symmetrically arranged with the center axis of the rotating block as the axis of symmetry, and the bottom of the notch is open, to facilitate subsequent clamping block.

[0012] Preferably, the two ends of the rotating rod are rotatably connected with the inner wall of the notch through bearing, and the outer wall of the rotating rod is fixedly inserted with one end of the clamping block;

[0013] The outer circle of the rotating rod movably sleeved with torsion spring, and the two ends of the torsion spring are fixedly connected with the inner wall of the notch and the clamping block respectively, and the torsion spring exerts force to make the clamping block always fit the clamping portion.

[0014] Preferably, the two blocks are different "L" shapes, and the two blocks are installed in close contact with the mouth of the limiting ring.

[0015] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0016] The utility model discloses a hydraulic pipe end alignment installation groove, and then twists the hydraulic pipe to make the hydraulic pipe and the joint body realize threaded connection, and the two blocks are located in the clamping part of the limiting ring by the two blocks, and the subsequent rotation of the rotating block drives the clamping block to rotate, and the rotating block that is in threaded connection with the joint body is displaced by rotating, which ensures the close contact of the clamping block and the clamping part to avoid the loosening of the connection between the joint body and the hydraulic pipe, and the secondary limiting connection and the multiple threaded connection also ensure the firm connection of the joint body and the hydraulic pipe. DRAWINGS

[0017] In order to make the person skilled in the art better understand the technical scheme of the utility model, the following will be further introduced in detail in combination with the drawings.

[0018] Figure 1 It is the overall structure of the utility model;

[0019] Figure 2 It is the overall structure of the utility model;

[0020] Figure 3 It is the overall structure of the utility model (partially cut state) of the hydraulic pipe;

[0021] Figure 4 It is the connection structure of the utility model of the hydraulic pipe and the joint body (partially cut state) three-dimensional drawing.

[0022] Explanation of the drawings:

[0023] 1, joint body;2, hydraulic pipe;3, connecting thread one;4, installation groove;5, connecting thread two;6, sealing ring;7, secondary limiting assembly;701, connecting thread three;702, rotating block;703, notch;704, rotating rod;705, clamping block;8, limiting ring;9, clamping part. Specific implementation

[0024] In order to make the person skilled in the art better understand the technical scheme of the utility model, the following will be further introduced in detail in combination with the drawings.

[0025] The utility model provides a joint body, a hydraulic pipe and a connecting structureFigures 1-4 The utility model provides an anti-loose hydraulic pipe joint, including joint body 1, the outer circle of one end of joint body 1 is provided with connecting thread no. 3, the inner of another end of joint body 1 is provided with installation groove 4, and the inside screw thread connection of installation groove 4 is provided with hydraulic pipe 2, and joint body 1 and hydraulic pipe 2 realize screw thread connection, and screw thread connection has self-locking, and further guarantee the firmness of joint body 1 and hydraulic pipe 2 connection, the outer circle of hydraulic pipe 2 is fixedly sleeved with limit ring 8, the inner wall of hydraulic pipe 2 is fixedly connected with sealing ring 6, still include:

[0026] Second limit component 7, the outer wall of joint body 1 is provided with connecting thread no. three 701, and the outer circle screw thread connection of connecting thread no. three 701 is provided with rotating block 702, and the inside of rotating block 702 is provided with notch 703, and the inside of notch 703 is rotatably connected with clamping block 705 through rotating rod 704, clamping block 705 and the matching of the clamping portion 9 inside limit ring 8, and second limit connection and multiple screw thread connection also guarantee the firmness of joint body 1 and hydraulic pipe 2 connection.

[0027] The outer wall of the upper end of hydraulic pipe 2 is provided with connecting thread no. two 5, and connecting thread no. two 5 and the threaded groove inside annular installation groove 4 are screw thread connected, and screw thread connection has self-locking, and further guarantee the firmness of joint body 1 and hydraulic pipe 2 connection.

[0028] Sealing ring 6 and limit ring 8 are located at the same horizontal position, and the distance between sealing ring 6 and limit ring 8 and the upper end of hydraulic pipe 2 is equal to the depth distance of installation groove 4, so that after the complete installation of joint body 1 and hydraulic pipe 2, the end of joint body 1 and limit ring 8 and sealing ring 6 abut together, guarantee the sealing property of joint body 1 and hydraulic pipe 2 connection.

[0029] The notch 703 is provided with two places in quantity, and the two notches 703 are symmetrically arranged with reference to the central axis of rotating block 702 as the symmetry axis, and the bottom of notch 703 is in the form of an open mouth, facilitating subsequent actuation clamping block 705.

[0030] The two ends of rotating rod 704 are rotatably connected with the inner wall of notch 703, and one end of clamping block 705 is fixedly inserted into the outer wall of rotating rod 704;

[0031] The outer circle of rotating rod 704 movably sleeves torsional spring, and the two ends of torsional spring are fixedly connected with the inner wall of notch 703 and clamping block 705 respectively, and torsional spring exerts force to make clamping block 705 always fit clamping portion 9.

[0032] Two clamping blocks 705 are different "L" shapes, and two clamping blocks 705 are installed in abutment with the mouth of limit ring 8.

[0033] Working principle: when using a kind of anti-loose hydraulic pipe joint, first, the end of hydraulic pipe 2 provided with connecting thread two 5 is aligned with the open end of the bottom of mounting groove 4, then twist hydraulic pipe 2 to make the connecting thread two 5 provided on the outer ring of hydraulic pipe 2 and mounting groove 4 in the joint body 1 are threadedly connected, and then the first connection of joint body 1 and hydraulic pipe 2 is completed, and subsequently the two clamping blocks 705 can be pushed to make the two clamping blocks 705 be located in the clamping part 9 of limiting ring 8, and rotating rotating block 702 can drive clamping block 705 to rotate synchronously, and rotating block 702 is threadedly connected with joint body 1, so that rotating rotating block 702 can make it displace, so that clamping block 705 moves towards the direction of limiting ring 8, and clamping block 705 is attached with clamping part 9 in the movement process, and then the loosening of the connection of joint body 1 and hydraulic pipe 2 is avoided, and secondary limiting connection and multiple thread connection also ensure the firm connection of joint body 1 and hydraulic pipe 2.

[0034] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature, and should not be understood as limiting the scope of protection of the present application.

Claims

1. A lock hydraulic pipe joint comprising a joint body (1), characterized in that, One end of the joint body (1) is provided with a connecting thread (3), the other end of the joint body (1) is provided with a mounting groove (4), the inside of the mounting groove (4) is threadedly connected with a hydraulic pipe (2), the outer wall of the hydraulic pipe (2) is fixedly connected with a limiting ring (8), the inner wall of the hydraulic pipe (2) is fixedly connected with a sealing ring (6), and the joint body (1) further comprises: A secondary limiting assembly (7) is arranged on the outer wall of the joint body (1), the outer wall of the connecting thread (3) is threadedly connected with a rotating block (702), the inside of the rotating block (702) is provided with a notch (703), the notch (703) is rotatably connected with a clamping block (705) through a rotating rod (704), and the clamping block (705) is matched with a clamping portion (9) arranged in the limiting ring (8).

2. A locking hydraulic pipe coupling according to claim 1, wherein The upper end of the outer wall of the hydraulic pipe (2) is provided with a connecting thread (5), and the connecting thread (5) is threadedly connected with a threaded groove arranged in the annular mounting groove (4).

3. A locking hydraulic pipe coupling according to claim 1, wherein The sealing ring (6) and the limiting ring (8) are located at the same horizontal position, and the distance between the sealing ring (6) and the limiting ring (8) and the upper end of the hydraulic pipe (2) is equal to the depth of the mounting groove (4).

4. A locking hydraulic pipe coupling according to claim 1, wherein The notch (703) is provided with two notches, and the two notches are symmetrically arranged with the center axis of the rotating block (702) as the axis of symmetry, and the bottom of the notch (703) is open.

5. A locking hydraulic pipe coupling according to claim 1, wherein The two ends of the rotating rod (704) are rotatably connected with the inner wall of the notch (703), and one end of the clamping block (705) is fixedly inserted into the outer wall of the rotating rod (704). The outer wall of the rotating rod (704) is movably sleeved with a torsion spring, and the two ends of the torsion spring are fixedly connected with the inner wall of the notch (703) and the clamping block (705), respectively.

6. A locking hydraulic pipe coupling according to claim 1, wherein The two clamping blocks (705) are different "L" shapes, and the two clamping blocks (705) are installed in close contact with the edge of the limiting ring (8).

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