Anti-oil-seepage and anti-fracture hydraulic joint

Abstract

The utility model discloses a hydraulic joint capable of preventing oil leakage and fracture, which relates to the technical field of hydraulic joints and comprises a hydraulic connecting valve, a connector arranged above the hydraulic connecting valve, a quick clamping mechanical structure arranged on the connector and an automatic oil leakage prevention mechanism arranged on the connector. The automatic oil leakage prevention mechanism is arranged in the hydraulic connecting valve; when the connector and the hydraulic connecting valve are pressed and clamped, the opening and closing valve is driven to start to be opened through the T-shaped sliding ring, and automatic communication can be achieved when the connector and the hydraulic connecting valve are connected. Extra manual intervention is not needed, so that the system can better adapt to different working environments and requirements due to the flexibility, and liquid leakage in the pipeline can be prevented when an operator connects the joint with the pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic joint technical field, concretely is a kind of anti-seepage anti-fracture hydraulic joint. BACKGROUND

[0002] In the Chinese patent with patent publication No.CN210153377U, a kind of anti-fracture hydraulic pipe joint is disclosed, including body, the body has liquid inlet pipe joint and liquid outlet pipe joint, liquid inlet passage and liquid outlet passage are vertically communicated in body, detachable fixed connection has connection pipe joint on liquid inlet pipe joint, liquid flow passage is provided in connection pipe joint, automatic regulating device is provided between connection pipe joint and liquid inlet pipe joint, when hydraulic pressure reaches 0.3MPa~1.2MPa, can make liquid inlet passage and liquid flow passage two in through-flow state.The utility model has simple structure, the automatic regulating device of pressure-limiting through-flow is set in liquid inlet pipe joint, when system oil pressure is greater than 1.2MPa, liquid inlet passage is closed, and the connection of hydraulic pipe joint cannot appear seepage phenomenon, and service life is long.

[0003] But the following defects still exist in the specific use of comparative document:

[0004] Although the comparative document can realize the automatic starting of regulating device when pressure is greater than a certain threshold value, when hydraulic joint is ready to be connected with pipe, if liquid remains in pipe, or during installation, due to the fact that the other end joint has not been connected, the hydraulic joint is actually in open state with pipe, in this situation, if system equipment appears performance decline or failure due to long time running, leading to accidental opening of valve in pipe, liquid in pipe may be directly spouted out of control, thereby causing liquid leakage, this leakage not only can cause pollution to environment, but also can pose a safety threat to operator, such as scalding caused by liquid splashing or other health risks caused by chemical liquid.In addition, the leakage of liquid can also disturb the normal operation of hydraulic system, even lead to shutdown and repair of the whole system, thereby affecting production efficiency and cost.

[0005] Therefore, an anti-seepage anti-fracture hydraulic joint is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model solves the technical problems in the prior art that hydraulic joint cannot realize automatic protection before connection.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: an anti-oil seepage and anti-fracture hydraulic joint, comprising a hydraulic connecting valve, a connecting head provided above the hydraulic connecting valve, a quick-clamping mechanical structure and an automatic anti-oil leakage mechanism, wherein the quick-clamping mechanical structure is provided on the connecting head, and the automatic anti-oil leakage mechanism is provided in the hydraulic connecting valve;

[0008] The quick-clamping mechanical structure is used for quick-clamping of the hydraulic joint;

[0009] The automatic oil leakage prevention mechanism is used for preventing hydraulic joints from leaking.

[0010] Preferably, the quick-clamping mechanical structure includes an arc-surface extrusion block, which is fixedly connected to the outer surface of the hydraulic connecting valve and the connecting head respectively, and the outer surface of the hydraulic connecting valve and the connecting head are fixedly connected with a clamping plate respectively.

[0011] Preferably, a card slot is provided in the card plate, and the size of the card slot is adapted to the size of the arc-surface extrusion block.

[0012] Preferably, the automatic oil leakage prevention mechanism includes a T-shaped slip ring, the outer periphery of the T-shaped slip ring is slidingly connected to the inner wall of the upper surface of the hydraulic connecting valve, the lower surface of the T-shaped slip ring is fixedly connected to a reset spring, the reset spring is fixedly connected to the hydraulic connecting valve at one end away from the T-shaped slip ring, and the T-shaped slip ring is fixedly connected to an extrusion rod.

[0013] Preferably, the hydraulic connecting valve is rotatably connected to a swivel in the middle, a semi-arc extrusion groove is provided on the swivel, the extrusion rod is slidably connected in the semi-arc extrusion groove, and the swivel is fixedly connected to an extrusion disk on the side away from the return spring, and semi-arc grooves are symmetrically provided in the extrusion disk.

[0014] Preferably, an extrusion column is slidably connected in the semi-arc groove of the extrusion disc, and an opening and closing valve is fixedly connected to the bottom of the extrusion column. The opening and closing valve is fixedly connected to the middle of the hydraulic connecting valve. The opening and closing valve is fixedly connected to an auxiliary spring on one side away from the middle of the extrusion disc, and the auxiliary spring is fixedly connected to the hydraulic connecting valve at one end away from the closing valve.

[0015] Compared with the prior art, the anti-oil seepage and anti-fracture hydraulic joint provided by the utility model has the following beneficial effects:

[0016] 1. In the present invention, a T-shaped slip ring and an extrusion disk are set up, and the extrusion rod is pushed to squeeze the rotating ring to drive the extrusion disk to rotate. The rotation of the extrusion disk can control the opening and closing of the valve in the hydraulic connecting valve. When the connecting head and the hydraulic connecting valve are connected, the elastic action of the return spring and the auxiliary spring will cause the opening and closing valves to close with each other in the middle of the hydraulic connecting valve to achieve sealing of the hydraulic connecting valve. When the connecting head and the hydraulic connecting valve are pressed and locked, the T-shaped slip ring will drive the opening and closing valve to start opening, and when the connecting head and the hydraulic connecting valve are engaged, automatic connection can be achieved. The present invention can automatically adjust the opening and closing of the valve according to the connection state of the connecting head and the hydraulic connecting valve without additional manual intervention. This flexibility enables the system to better adapt to different working environments and needs, and can reduce the operator's efforts to prevent liquid leakage in the pipeline when the joint is connected to the pipeline.

[0017] 2. With the arrangement of the arc-surface extrusion block and the card plate, when the connector is rotated, the card slot on the card plate engages with the arc-surface extrusion block on the hydraulic connection valve. Since the arc-surface extrusion block is arranged to rotate in an inclined arc shape, when the connector is rotated, the card slot can be squeezed with the arc-surface extrusion block. The increased squeezing effect enables the card plate to be firmly engaged with the arc-surface extrusion block of the hydraulic connection valve. Compared with the hydraulic connector connected by traditional threads, the arrangement of the utility model adopts the squeezing effect between the arc-surface extrusion block and the card slot with an inclined arc shape. When the connector is rotated, this design can generate a stronger locking force, so that the card plate can be more firmly engaged with the arc-surface extrusion block of the hydraulic connection valve. This physical locking mechanism is more reliable than traditional threaded connections, especially in high vibration or impact environments, and can effectively prevent loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of a three-dimensional structure half-split device of the utility model;

[0020] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structural connection relationship of the automatic oil leakage prevention mechanism of the utility model.

[0022] In the picture:

[0023] 1. Hydraulic connecting valve; 11. Connector;

[0024] 2. Quick-connect mechanical structure; 21. Arc-surface extrusion block; 22. Clamping plate; 23. Clamping slot;

[0025] 3. Automatic oil leakage prevention mechanism; 31. T-shaped slip ring; 32. Extrusion rod; 33. Return spring; 34. Rotating ring; 35. Extrusion disk; 36. Semi-arc extrusion groove; 37. Opening and closing valve; 38. Auxiliary spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. Example

[0028] Please refer to Figures 1 to 4 As shown:

[0029] To solve the problems mentioned in the technical solution, the embodiment of the present application provides an anti-oil seepage and anti-fracture hydraulic joint, including a hydraulic connecting valve 1, a connecting head 11 is provided above the hydraulic connecting valve 1, and also includes a quick-clamping mechanical structure 2 and an automatic anti-oil leakage mechanism 3, the quick-clamping mechanical structure 2 is provided on the connecting head 11, and the automatic anti-oil leakage mechanism 3 is provided in the hydraulic connecting valve 1;

[0030] The quick-clamping mechanical structure 2 is used for quick-clamping of the hydraulic joint;

[0031] The automatic oil leakage prevention mechanism 3 is used to prevent leakage of the hydraulic joint;

[0032] The quick-clamping mechanical structure 2 includes an arc-surface extrusion block 21, which is fixedly connected to the outer surfaces of the hydraulic connection valve 1 and the connector 11, and the outer surfaces of the hydraulic connection valve 1 and the connector 11 are fixedly connected to the clamping plate 22;

[0033] A card slot 23 is provided in the card plate 22, and the size of the card slot 23 is adapted to the size of the arc-surface extrusion block 21;

[0034] Wherein: the quick clamping mechanical structure 2 is symmetrically arranged on the hydraulic connecting valve 1 and the connecting head 11.

[0035] Compared with the comparative documents, through the implementation of this embodiment, due to the extrusion effect between the arc-shaped extrusion block 21 with an inclined arc rotation and the card groove 23, when the connecting head 11 is rotated, this design can generate a stronger locking force, so that the clamping plate 22 can be more firmly engaged on the arc-shaped extrusion block 21 of the hydraulic connecting valve 1. This physical locking mechanism is more reliable than traditional threaded connections, especially in high vibration or impact environments, and can effectively prevent loosening.

[0036] For further examples, please refer to Figures 1 to 4 As shown:

[0037] The automatic oil leakage prevention mechanism 3 includes a T-shaped slip ring 31. The outer periphery of the T-shaped slip ring 31 is slidably connected to the inner wall of the upper surface of the hydraulic connection valve 1. A return spring 33 is fixedly connected to the lower surface of the T-shaped slip ring 31. The end of the return spring 33 away from the T-shaped slip ring 31 is fixedly connected to the hydraulic connection valve 1. An extrusion rod 32 is fixedly connected to the T-shaped slip ring 31.

[0038] The middle part of the hydraulic connecting valve 1 is rotatably connected to a swivel 34, on which a semi-arc extrusion groove 36 is opened. The extrusion rod 32 is slidably connected to the semi-arc extrusion groove 36. The swivel 34 is fixedly connected to a squeeze disk 35 on the side away from the return spring 33. The squeeze disk 35 has semi-arc grooves symmetrically opened therein.

[0039] An extrusion column is slidably connected in the semi-arc groove of the extrusion disc 35, and an opening and closing valve 37 is fixedly connected to the bottom of the extrusion column. The opening and closing valve 37 is fixedly connected to the middle of the hydraulic connection valve 1. An auxiliary spring 38 is fixedly connected to the side of the opening and closing valve 37 away from the middle of the extrusion disc 35. The end of the auxiliary spring 38 away from the closing valve 37 is fixedly connected to the hydraulic connection valve 1.

[0040] in:

[0041] Compared with the comparative documents, the implementation of this embodiment does not require additional manual intervention. This flexibility enables the system to better adapt to different working environments and needs, and can reduce the operator's efforts to prevent liquid leakage in the pipeline when the joint is connected to the pipeline.

[0042] Everything in the above example works as follows:

[0043] In the initial state: the auxiliary spring 38 and the return spring 33 are not compressed.

[0044] The following is a working process of the quick clamping mechanism 2 for the quick clamping of the hydraulic joint and the automatic oil leakage prevention mechanism 3 for the leakage protection of the hydraulic joint:

[0045] During use, when the operator first closes the connector 11 and the hydraulic connection valve 1, the operator manually rotates the connector 11. When the connector 11 is rotated, the slot 23 on the clamping plate 22 engages with the arc-shaped extrusion block 21 on the hydraulic connection valve 1. Since the arc-shaped extrusion block 21 is set to an inclined arc, when the connector 11 is rotated, the slot 23 can be squeezed with the arc-shaped extrusion block 21. The increased squeezing effect causes the clamping plate 22 to be firmly engaged with the arc-shaped extrusion block 21 of the hydraulic connection valve 1. Compared with the hydraulic connector connected by traditional threads, the present invention is set up, because the squeezing effect between the arc-shaped extrusion block 21 and the slot 23 is adopted. When the connector 11 is rotated, this design can generate a stronger locking force, so that the clamping plate 22 can be more firmly engaged with the arc-shaped extrusion block 21 of the hydraulic connection valve 1. This physical locking mechanism is more reliable than traditional threaded connections, especially in high vibration or impact environments, and can effectively prevent loosening.

[0046] When the connector 11 is engaged with the hydraulic connection valve 1, the bottom of the connector 11 pushes the surface of the T-shaped slip ring 31 downward, and the T-shaped slip ring 31 slides downward along the inner wall of the upper surface of the hydraulic connection valve 1. At this time, because the extrusion rod 32 is fixedly connected to the inner wall of the T-shaped slip ring 31, and the extrusion rod 32 is slidably connected to the arc groove of the swivel 34, the downward sliding of the T-shaped slip ring 31 will drive the swivel 34 to start rotating in a clockwise direction. At this time, because the extrusion disk 35 is fixedly connected to the bottom of the swivel 34, the rotation of the swivel 34 will drive the extrusion disk 35 to start rotating in the same direction. Figure 4 As shown, because the opening and closing valve 37 slides in the middle of the hydraulic connecting valve 1, and the hydraulic connecting valve 1 controls the closing of the hydraulic connecting valve 1 liquid inlet through the opening and closing valve 37, when the connector 11 and the hydraulic connecting valve 1 are connected to each other, the swivel 34 drives the extrusion disk 35 to start rotating synchronously. Since a semi-arc extrusion groove 36 is provided on the extrusion disk 35 and the fixed column on the opening and closing valve 37 is slidably connected to the semi-arc extrusion groove 36, the semi-arc extrusion groove 36 squeezes the fixed column of the opening and closing valve 37, which drives the opening and closing valves 37 to open each other, thereby connecting the hydraulic connecting valve 1 and the connector 11 to each other.

[0047] The utility model discloses a valve is opened and closed to the hydraulic connection valve 1 in through extruding disc 35 rotation can control open and close valve 37, when the connector 11 and hydraulic connection valve 1 are connected, through the elastic action of reset spring 33 and auxiliary spring 38 will make open and close valve 37 mutual close in the middle part of hydraulic connection valve 1 realizes the sealing of hydraulic connection valve 1, and when the connector 11 and hydraulic connection valve 1 are pressed and clamped, through T-shaped slide ring 31 can drive open and close valve 37 to start opening, and when the connector 11 and hydraulic connection valve 1 are connected, can realize automatic intercommunication, the utility model discloses can automatically adjust the opening and closing of valve according to the connection state of connector 11 and hydraulic connection valve 1, need not additional manual intervention, and this flexibility makes the system can better adapt to different working environment and demand, and can reduce the operator when the joint and pipeline connection prevent the liquid leakage in pipeline.

[0048] The above working process please refer to Figures 1 to 4 .

[0049] It should be noted that in this paper, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "includes a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0050] 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 deformations 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. An anti-leakage and anti-fracture hydraulic joint, used for preventing leakage and quick connection of hydraulic joints, comprising a hydraulic connection valve (1), a connection head (11) is provided above the hydraulic connection valve (1), characterized in that: It also includes a quick-clamping mechanical structure (2) and an automatic oil leakage prevention mechanism (3), wherein the quick-clamping mechanical structure (2) is arranged on the connecting head (11), and the automatic oil leakage prevention mechanism (3) is arranged in the hydraulic connecting valve (1); The quick clamping mechanical structure (2) is used for quick clamping of hydraulic joints; The automatic oil leakage prevention mechanism (3) is used for preventing liquid leakage of a hydraulic joint.

2. The anti-oil seepage and anti-fracture hydraulic joint according to claim 1, characterized in that: The quick-clamping mechanical structure (2) comprises an arc-surface extrusion block (21), wherein the arc-surface extrusion block (21) is fixedly connected to the outer surfaces of the hydraulic connection valve (1) and the connection head (11), respectively; and the outer surfaces of the hydraulic connection valve (1) and the connection head (11) are fixedly connected to a clamping plate (22).

3. The anti-oil seepage and anti-fracture hydraulic joint according to claim 2, characterized in that: A card slot (23) is provided in the card plate (22), and the size of the card slot (23) is adapted to the size of the arc-surface extrusion block (21).

4. The anti-oil seepage and anti-fracture hydraulic joint according to claim 1, characterized in that: The automatic oil leakage prevention mechanism (3) comprises a T-shaped slip ring (31), the outer periphery of the T-shaped slip ring (31) is slidably connected to the inner wall of the upper surface of the hydraulic connection valve (1), the lower surface of the T-shaped slip ring (31) is fixedly connected to a return spring (33), one end of the return spring (33) away from the T-shaped slip ring (31) is fixedly connected to the hydraulic connection valve (1), and the T-shaped slip ring (31) is fixedly connected to an extrusion rod (32).

5. The anti-oil seepage and anti-fracture hydraulic joint according to claim 4, characterized in that: The middle part of the hydraulic connection valve (1) is rotatably connected to a swivel (34), a semi-arc extrusion groove (36) is provided on the swivel (34), and the extrusion rod (32) is slidably connected in the semi-arc extrusion groove (36). The side of the swivel (34) away from the return spring (33) is fixedly connected to an extrusion disk (35), and the extrusion disk (35) is symmetrically provided with semi-arc grooves.

6. The anti-oil leakage and anti-fracture hydraulic joint according to claim 5, characterized in that: An extrusion column is slidably connected in the semi-arc groove of the extrusion disc (35), and an opening and closing valve (37) is fixedly connected to the bottom of the extrusion column. The opening and closing valve (37) is fixedly connected to the middle of the hydraulic connection valve (1). An auxiliary spring (38) is fixedly connected to the side of the opening and closing valve (37) away from the middle of the extrusion disc (35). The auxiliary spring (38) is fixedly connected to the hydraulic connection valve (1) at one end away from the closing valve (37).

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