Pipeline connecting joint
By designing a pipe connection joint that utilizes the linear movement of the valve core and handle operation, the problems of gas leakage and delay during the loading and unloading of liquefied gas are solved, achieving efficient sealing and safe and environmentally friendly loading and unloading of liquefied gas.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional liquefied gas loading and unloading processes suffer from serious gas leaks, delayed opening and closing, and spillage, leading to resource waste and safety hazards.
Design a pipe connection joint that controls the opening and closing of the valve port through the linear movement of the valve core, combined with external operation of the handle, to simplify the structure, and use the valve core elastic element and guide wheel mechanism to ensure sealing.
It achieves efficient sealing, prevents fluid leakage, simplifies the structure, reduces manufacturing costs, and improves safety and environmental friendliness.
Smart Images
Figure CN223985059U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquefied gas technical field especially is connected joint of pipeline. BACKGROUND
[0002] At present, in the field of chemical loading and unloading, especially in the process of supplementing high-pressure gas such as liquefied gas, the traditional female head and male head connection mode adopts two cam handles to realize clamping through cam compression, and simultaneously extrudes the piston type sealing ring in the female head to realize sealing. Because the cavity space of the male head and the female head is large, when separating, most of the high-pressure gas remaining in the cavity space is directly discharged outward, causing a large amount of gas leakage, not only wasting resources, but also threatening the health of the operator and the environmental safety. In addition, there is a delay in opening and closing during the process of docking and separation, which cannot be synchronized with the male head for sealing. This delay will cause leakage during the opening and closing process, further increasing the risk of environmental pollution and safety accidents.
[0003] Therefore, the prior art has significant deficiencies in leakage control, and technical innovation is urgently needed. INVENTION CONTENTS
[0004] The utility model aims at: design a kind of pipeline connection joint that can satisfy the safety and environmental protection demand of high-pressure gas loading and unloading.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a kind of pipeline connection joint, including: valve body, valve core, handle and control piece;
[0006] The valve body has male head docking section for being connected with male head, connecting section and equipment connecting section for being connected with pipeline in turn along the first direction, valve port is equipped between the male head docking section and the connecting section, the valve core is moved and is provided in the connecting section along the first direction, and the end of the valve core along the first direction is close to the male head docking section and is defined as sealing end, the control piece is arranged in the connecting section, the handle is arranged outside the valve body and is connected with the valve core by the control piece, by controlling the handle, the valve core can be switched between opening position and closing position, when the valve core is located in the opening position, the male head docking section, the valve port, the connecting section and the equipment connecting section are sequentially communicated to form connection channel;When the valve core is located in the closing position, the sealing end is closed with the valve port, to block the connection channel.
[0007] Further, it further includes main shaft, the main shaft is provided in the circumferential wall of the connecting section, and one end of the main shaft is connected with the handle, and the other end is connected with the control piece, by rotating the handle, the main shaft can be driven to rotate along its axial direction, to drive the control piece to rotate and make the valve core switch between the opening position and the closing position.
[0008] Further, a guide wheel is arranged on the valve core, the control member has a hook portion, the hook portion is in transmission connection with the valve core through the guide wheel, the valve core and the valve body are further connected through a valve core elastic member, and the valve core elastic member can drive the valve core to move from the opening position to the closing position.
[0009] Further, an inner peripheral wall of the connecting section is provided with a positioning portion, the valve core elastic member is a valve core spring, the valve core elastic member is sleeved on the valve core, and one end of the valve core elastic member away from the sealing end is in abutment with the positioning portion.
[0010] Further, a stroke limiting member is connected to one side of the handle close to the valve body, an outer peripheral wall of the valve body is provided with a limiting block, the limiting block has two limiting portions oppositely arranged along the rotation direction of the handle, when the handle is located at the opening position, the stroke limiting member is in limiting cooperation with one limiting portion, and when the handle is located at the closing position, the stroke limiting member is in limiting cooperation with the other limiting portion.
[0011] Further, the stroke limiting member comprises a limiting block portion, a rotating shaft portion and a handle portion connected in sequence, the rotating shaft portion is in rotation connection with the handle and can make the stroke limiting member rotate from a locking position to a separation position, when the stroke limiting member is located at the locking position, the limiting block portion is in limiting cooperation with any one limiting portion, and when the stroke limiting member is located at the separation position, the limiting block portion is separated from both limiting portions.
[0012] Further, a locking elastic member is further connected between the handle portion and the handle, and the locking elastic member can drive the stroke limiting member to rotate from the separation position to the locking position.
[0013] Further, the main shaft is arranged in spaced relationship with the valve core, and the axial direction of the main shaft is perpendicular to the axial direction of the valve core.
[0014] Further, a shell, a clamping member and a shell elastic member are further included, a clamping channel extending in the radial direction of the male joint section is formed in the peripheral wall of the male joint section, the clamping member is arranged in the clamping channel, the shell is sleeved on the outer periphery of the male joint section in a sliding mode, a clamping portion and a containing groove are arranged on the inner peripheral wall of the shell, the shell and the valve body are further connected through the shell elastic member, and the shell elastic member can drive the shell to move from a releasing position to a clamping position.
[0015] When the shell is located at the releasing position, the accommodating groove is correspondingly arranged with the clamping channel, and the clamping piece is located in the clamping channel and the accommodating groove; when the shell is located at the clamping position, the clamping part is correspondingly arranged with the clamping channel, and the clamping part abuts against the clamping piece to make the clamping piece protrude relative to the inner peripheral wall of the male head butt joint segment.
[0016] Further, the outer peripheral wall of the valve body protrudes with a mounting part, the shell elastic member is a spring, and the shell elastic member is connected with the valve body through the mounting part.
[0017] Compared with the prior art, the pipeline connecting joint has the beneficial effects that:
[0018] The pipeline connecting joint can directly control the opening and closing of the valve port through the linear movement of the valve core, cooperates with the external operation of the handle, does not need a complex transmission mechanism, simplifies the overall structure and reduces the manufacturing cost, realizes the sealing function with high reliability, and effectively prevents fluid leakage. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a structure diagram of the pipeline connecting joint of the utility model embodiment Figure 1 ;
[0020] Figure 2 is a structure diagram of the pipeline connecting joint of the utility model embodiment Figure 2 ;
[0021] Figure 3 is a structure diagram of the pipeline connecting joint of the utility model embodiment Figure 3 ;
[0022] Figure 4 is a structure diagram of the pipeline connecting joint of the utility model embodiment Figure 4 ;
[0023] Figure 5 is a sectional view of the pipeline connecting joint of the utility model embodiment;
[0024] Figure 6 is a sectional view of the pipeline connecting joint of the utility model embodiment;
[0025] Figure 7 is a connection diagram of the pipeline connecting joint and the male head of the utility model embodiment.
[0026] In the diagram, 1. Valve body; 10. Connecting channel; 11. Male connector section; 111. Snap-fit channel; 12. Connecting section; 13. Equipment connecting section; 14. Mounting part; 17. Valve port; 18. Positioning part; 19. Limiting block; 191. Limiting part; 2. Housing; 21. Snap-fit part; 22. Receiving groove; 3. Snap-fit component; 41. Housing elastic component; 5. Valve core; 51. Sealing end; 52. Guide wheel; 53. Valve core elastic component; 6. Handle; 7. Control component; 71. Hook part; 8. Main shaft; 9. Stroke limiting component; 91. Limiting stop part; 92. Rotating shaft part; 93. Handle part; 94. Locking elastic component; 100. Male connector; x. First direction. Detailed Implementation
[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] In the description of this utility model, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] In this invention, terms such as "first" and "second" are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.
[0031] Reference Figure 1 , Figure 2 and Figure 6A pipe connection connector according to an embodiment of the present utility model includes: valve body 1, valve core 5, handle 6 and control component 7;
[0032] The valve body 1 has a male connector section 11 for connecting to a male connector 100, a connecting section 12, and an equipment connecting section 13 for connecting to a pipeline, which are sequentially connected along a first direction x. A valve port 17 is provided between the male connector section 11 and the connecting section 12. The valve core 5 moves along the first direction x and passes through the connecting section 12, and the end of the valve core 5 near the male connector section 11 along the first direction x is defined as a sealing end 51. The control element 7 is disposed inside the connecting section 12, and the handle 6 is disposed outside the valve body 1 and is drivenly connected to the valve core 5 through the control element 7. By controlling the handle 6, the valve core 5 can be switched between an open position and a closed position. When the valve core 5 is in the open position, the male connector section 11, the valve port 17, the connecting section 12, and the equipment connecting section 13 are sequentially connected to form a connecting channel 10. When the valve core 5 is in the closed position, the sealing end 51 is sealed to the valve port 17 to block the connecting channel 10.
[0033] The equipment connection section 13 can be connected to the pipeline using external threads, flanges, or welding. The shape of the sealing end 51 is adapted to the shape of the valve port 17, and a sealing ring can be fitted onto the outer peripheral wall of the sealing end 51 to improve sealing performance. The handle 6 is located outside the valve body 1, and the opening and closing of the valve core 5 can be controlled by rotating the handle 6. The control element 7 is located inside the connection section 12 and is used to convert the rotational motion of the handle 6 into the linear motion of the valve core 5 along the first direction x. In a specific embodiment, the control element 7 can be a cam mechanism, a threaded transmission mechanism, or a linkage mechanism, etc.
[0034] The working principle of this application is as follows: When the handle 6 is rotated to the open position, the valve core 5 moves along the first direction x through the action of the control component 7, causing the sealing end 51 to move away from the valve port 17. This allows the male connector section 11, valve port 17, connecting section 12, and equipment connecting section 13 to connect sequentially, forming a connecting channel 10, through which fluid can pass smoothly. When the handle 6 is rotated to the closed position, the valve core 5 moves away from the first direction x through the action of the control component 7, causing the sealing end 51 to come into tight contact with the valve port 17, achieving a sealed connection, thereby blocking the connecting channel 10 and preventing fluid from passing through.
[0035] This application enables direct control of the opening and closing of the valve port 17 through the linear movement of the valve core 5. Combined with the external operation of the handle 6, it eliminates the need for a complex transmission mechanism, simplifies the overall structure, reduces manufacturing costs, achieves a highly reliable sealing function, and effectively prevents fluid leakage.
[0036] In some improvements of this application, a main shaft 8 is also included. The main shaft 8 passes through the peripheral wall of the connecting section 12, and one end of the main shaft 8 is connected to the handle 6 and the other end is connected to the control component 7. By rotating the handle 6, the main shaft 8 can be driven to rotate along its axial direction, so as to drive the control component 7 to rotate and switch the valve core 5 between the open position and the closed position.
[0037] Specifically, the main shaft 8 is connected to the peripheral wall of the connecting section 12 by a sealing ring or flange to prevent fluid leakage. Turning the handle 6 can drive the main shaft 8 to rotate along its axial direction. The rotation of the main shaft 8 drives the control component 7 to rotate, converting the rotational motion into the linear motion of the valve core 5, so that the valve core 5 moves between the open position and the closed position along the first direction x.
[0038] In some improvements of this application, the handle 6 is further provided with a limiting protrusion, and the outer peripheral wall of the valve body 1 is provided with a mating part that limits and cooperates with the limiting protrusion. The limiting protrusion and the mating part can restrict the rotation of the handle 6, limiting the rotation range of the handle 6 only between the open position and the closed position, so as to avoid excessive rotation and thus cause the valve core 5 to move excessively in the valve body 1.
[0039] In some improvements of this application, a guide wheel 52 and a valve core elastic element 53 are also included. The guide wheel 52 is disposed on the valve core 5. The control element 7 has a hook portion 71. The hook portion 71 is connected to the valve core 5 via the guide wheel 52. The valve core 5 and the valve body 1 are also connected via the valve core elastic element 53. The valve core elastic element 53 can drive the valve core 5 to move from the open position to the closed position.
[0040] The hook portion 71 is part of the control component 7, and its shape matches the guide wheel 52, enabling it to hook onto and move the guide wheel 52. The hook portion 71 can have an arc-shaped or hook-shaped structure. The control component 7 also includes a part connected to the main shaft 8, which can be an eccentric wheel, inclined plane, or gear, etc., used to transmit the rotational motion of the main shaft 8 to the hook portion 71. The guide wheel 52 is located on the valve core 5 and is drivenly connected to the hook portion 71 of the control component 7. The function of the guide wheel 52 is to reduce the friction force when the valve core 5 moves, improving the smoothness of operation. The valve core elastic element 53 is connected between the valve core 5 and the valve body 1, and can drive the valve core 5 to move from the open position to the closed position. The valve core elastic element 53 can be a spring, rubber elastomer, etc., which can provide an automatic closing force, ensuring that the valve core 5 is always in the closed position without the external force of the control component 7, thus improving safety.
[0041] In the initial state, the valve core elastic element 53 drives the valve core 5 to move to the closed position, and the sealing end 51 is in close contact with the valve port 17, blocking the connection channel 10. When it is necessary to open the valve, turn the handle 6, which drives the main shaft 8 to rotate along its axis. The rotation of the main shaft 8 is transmitted to the hook part 71 through the main shaft 8 connecting part of the control element 7. The hook part 71 hooks the guide wheel 52 and overcomes the force of the valve core elastic element 53, pulling the valve core 5 to move along the first direction x, so that the sealing end 51 is away from the valve port 17, thereby connecting the male connector section 11, the valve port 17, the connecting section 12 and the equipment connecting section 13 in sequence, forming the connection channel 10, through which fluid can pass smoothly.
[0042] In some improvements of this application, the inner peripheral wall of the connecting section 12 is provided with a positioning part 18, and the valve core elastic element 53 is a valve core 5 spring. The valve core elastic element 53 is sleeved on the valve core 5, and the end of the valve core elastic element 53 facing away from the sealing end 51 along the first direction x abuts against the positioning part 18. The valve core elastic element 53 can provide an automatic closing force to ensure that the valve core 5 is always in the closed position without external force, thus improving safety. Using the positioning part 18 to support the valve core elastic element 53 and limit the compression direction and stroke of the valve core 5 spring can ensure the linear motion accuracy of the valve core 5, simplify the internal structure, and facilitate installation.
[0043] Reference Figure 3 and Figure 4 In some improvements of this application, a travel limiting member 9 is also included. The travel limiting member 9 is connected to the side of the handle 6 near the valve body 1. A limiting block 19 is protruding on the outer peripheral wall of the valve body 1. The limiting block 19 has two limiting parts 191 that are arranged opposite to each other along the rotation direction of the handle 6. When the handle 6 is in the open position, the travel limiting member 9 is limited and engaged with one of the limiting parts 191. When the handle 6 is in the closed position, the travel limiting member 9 is limited and engaged with the other limiting part 191.
[0044] The stroke limiting member 9 can be a protrusion, a pin, or other suitable structure, used to limit the rotation range of the handle 6 and ensure that the valve core 5 can be fixed in the open or closed position. The two limiting parts 191 are used to limit the rotation of the handle 6 in the open and closed positions, respectively. That is, in the open position, the stroke limiting member 9 and the limiting parts 191 can cooperate to continuously apply torque to the handle 6 to overcome the elastic force of the valve core elastic member 53 and keep the valve core 5 in the open position.
[0045] Reference Figure 5In some improvements of this application, the travel limiting member 9 includes a limiting stop 91, a rotating shaft 92, and a handle 93 connected in sequence. The rotating shaft 92 is rotatably connected to the handle 6 and allows the travel limiting member 9 to rotate from a locked position to a disengaged position. When the travel limiting member 9 is in the locked position, the limiting stop 91 engages with either of the limiting parts 191; when the travel limiting member 9 is in the disengaged position, the limiting stop 91 is disengaged from both of the limiting parts 191. The limiting stop 91 and the handle 93 are arranged at an angle. The rotating shaft 92 is rotatably connected to the handle 6 via a shaft. The handle 93 facilitates the user's grip and operation of the travel limiting member 9. By controlling the handle 93 to rotate the travel limiting member 9, the limiting stop 91 is disengaged from the limiting parts 191, allowing the handle 6 to rotate freely.
[0046] In some improvements of this application, a locking elastic element 94 is further connected between the handle portion 93 and the handle 6. The locking elastic element 94 can drive the travel limit member 9 to rotate from the separated position to the locked position. In a specific embodiment, the locking elastic element 94 is a double-shoulder torsion spring, which is sleeved on the rotating shaft connecting the rotating shaft portion 92 and the handle 6. One torsion bar abuts against the handle portion 93, and the other torsion bar abuts against the handle 6.
[0047] In some improvements of this application, the main shaft 8 and the valve core 5 are spaced apart, and the axial direction of the main shaft 8 is perpendicular to the axial direction of the valve core 5. The main shaft 8 for rotating the handle 6 is eccentrically designed with respect to the center line of the valve body 1, which further ensures the stable opening and closing of the handle 6 and avoids jamming. At the same time, it can minimize the unnecessary space in the valve body 1 and rationally arrange the component structure system without affecting the flow rate.
[0048] Reference Figure 7 In some improvements of this application, the outer shell 2, the snap-fit component 3, and the outer shell elastic component 41 are also included. The peripheral wall of the male connector section 11 is provided with a snap-fit channel 111 extending radially therefrom. The snap-fit component 3 passes through the snap-fit channel 111. The outer shell 2 is slidably sleeved on the outer periphery of the male connector section 11. The inner peripheral wall of the outer shell 2 is provided with a snap-fit part 21 and a receiving groove 22. The outer shell 2 and the valve body 1 are also connected by the outer shell elastic component 41. The outer shell elastic component 41 can drive the outer shell 2 to move from the release position to the snap-fit position.
[0049] When the outer shell 2 is in the release position, the receiving groove 22 is correspondingly arranged with the snap-fit channel 111, and the snap-fit member 3 is located in the snap-fit channel 111 and the receiving groove 22; when the outer shell 2 is in the snap-fit position, the snap-fit part 21 is correspondingly arranged with the snap-fit channel 111, and the snap-fit part 21 abuts against the snap-fit member 3 so that the snap-fit member 3 protrudes relative to the inner peripheral wall of the male head mating section 11.
[0050] In some improvements of this application, the outer peripheral wall of the valve body 1 has a protruding mounting portion 14, the outer shell elastic element 41 is a spring, and the outer shell elastic element 41 is connected to the valve body 1 through the mounting portion 14.
[0051] The working principle of the preferred embodiment of this application is as follows:
[0052] 1) Initial state, male connector 100 not connected: In the initial state, the valve core elastic element 53 is compressed, one end of which abuts against the positioning part 18, and the other end pushes the valve core 5 to move towards the closed position. The sealing end 51 is in close contact with the valve port 17, blocking the connection channel 10. The handle 6 is in the closed position, and the limit stop 91 of the stroke limit element 9 is in a limiting cooperation with one of the limit parts 191. The stroke limit element 9 is in a locked position under the action of the locking elastic element 94 to prevent the handle 6 from being rotated excessively. The outer shell 2 is in a snap-fit position under the action of the outer shell elastic element 41. The snap-fit part 21 is correspondingly set with the snap-fit channel 111, and the snap-fit element 3 is protruding from the inner peripheral wall of the male connector section 11.
[0053] 2) Connecting the male connector 100: Pull the outer shell 2 by hand to squeeze the elastic element 41, moving it from the snap-fit position to the release position. At this time, the receiving groove 22 corresponds to the snap-fit channel 111, and the snap-fit part 21 is located within the snap-fit channel 111 and the receiving groove 22, without protruding from the inner peripheral wall of the male connector mating section 11, allowing the male connector 100 to be inserted smoothly. After inserting the male connector 100 into the male connector mating section 11, release the outer shell 2. Under the action of the elastic element 41, the outer shell 2 automatically moves from the snap-fit position to the release position, and the snap-fit part 21 abuts against the snap-fit element 3, causing the snap-fit element 3 to protrude from the inner peripheral wall of the male connector mating section 11, thereby firmly snapping the male connector 100 into the male connector mating section 11.
[0054] 3) Opening process: Hold the handle 6 and simultaneously hold the handle 93 of the travel limit member 9, so that the travel limit member 9 overcomes the force of the locking elastic member 94 and rotates from the locked position to the disengaged position, and the limit stop 91 separates from the limit part 191. Then rotate the handle 6 to drive the main shaft 8 to rotate along its axis, so that the hook part 71 of the control member 7 hooks the guide wheel 52 and overcomes the force of the valve core elastic member 53, pulling the valve core 5 to move along the first direction x, thereby moving the sealing end 51 away from the valve port 17, so that the male connector section 11, valve port 17, connecting section 12 and equipment connecting section 13 are connected in sequence to form the connecting channel 10, and the fluid can smoothly pass from the male connector 100 to the pipeline.
[0055] 4) Keep open: After the valve core 5 is in the open position, release the handle 6 and the handle of the travel limit member 9. The travel limit member 9 is locked under the action of the locking elastic member 94. Its limit stop 91 and another limit part 191 limit each other to prevent the valve core 5 from closing due to the rotation of the handle 6.
[0056] 5) Closing Process: Hold handle 6 and simultaneously hold the handle 93 of travel limit member 9, causing travel limit member 9 to rotate from the locked position to the disengaged position against the force of locking elastic member 94, separating limit stop 91 from limit part 191. Valve core elastic member 53 releases energy, driving valve core 5 to move along the first direction x, making sealing end 51 tightly contact valve port 17, achieving a tight connection, thereby blocking connection channel 10 and preventing fluid from passing through. Handle 6 automatically returns to the closed position under the reaction action of guide wheel 52 and control member 7, and travel limit member 9 returns to the locked position under the action of locking elastic member 94, and limit stop 91 re-limits and engages with initial limit part 191.
[0057] 6) Separate the male connector 100: Pull the outer shell 2 again to overcome the force of the outer shell elastic element 41 and move the outer shell 2 from the snap-fit position to the release position. The receiving groove 22 is set to correspond with the snap-fit channel 111. The snap-fit element 3 retracts. At this time, the male connector 100 can be easily pulled out from the male connector mating section 11.
[0058] After the male connector 100 of this application is mated with the pipe connection joint, opening the valve core 5 allows the material (liquid or gas) in the tank truck to begin leak-free discharge, achieving a safe, sealed, and environmentally friendly effect. Simultaneously, when material discharge is closed, compared to conventional designs, the structure of this application, even with high internal pressure in the valve body 1, does not place a pressure burden on the valve core 5 connection structure, resulting in greater pressure resistance and safety.
[0059] In summary, this utility model embodiment provides a pipe connection joint with a compact and stable structure. It can be quickly connected to an external male connector 100 or other connection structures through the male connector mating section 11. After mating, the handle 6 is unlocked by rotating the stroke limiter 9, and then the valve core 5 is opened by the handle 6. When it is necessary to disconnect the connection, the valve core 5 can be used to seal the joint first, preventing the residual material in the valve body 1 pipe from evaporating or leaking when the male connector 100 is removed, thus protecting the surrounding environment and preventing safety accidents. This pipe connection joint is easy and convenient to open and has no pressure buildup.
[0060] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A pipe coupling joint, characterized in that, The utility model relates to a valve body, valve core, handle and control piece, and the valve body has the male head butt joint section for being connected with the male head in sequence along the first direction, the connecting section and the equipment connecting section for being connected with the pipeline, the valve port is equipped between the male head butt joint section and the connecting section, the valve core is moved along the first direction and is equipped in the connecting section, and the valve core is defined as the sealing end along the first direction and is close to one end of the male head butt joint section, the control piece is equipped in the connecting section, the handle is equipped outside the valve body and is driven connection with the valve core through the control piece, and the valve core can be switched between the opening position and the closing position by controlling the handle, when the valve core is located in the opening position, the male head butt joint section, the valve port, the connecting section and the equipment connecting section are sequentially communicated and form the connecting channel, and when the valve core is located in the closing position, the sealing end is closed with the valve port, and the connecting channel is blocked. The utility model further includes the main shaft, the main shaft is equipped in the connecting section wall, and one end of the main shaft is connected with the handle, the other end is connected with the control piece, the handle can drive the main shaft to rotate along the axial direction, and the control piece is rotated to switch the valve core between the opening position and the closing position. The utility model further includes the guide wheel and the valve core elastic piece, the guide wheel is equipped on the valve core, the control piece has the hook part, the hook part is driven connection with the valve core through the guide wheel, the valve core and the valve body are further connected through the valve core elastic piece, and the valve core elastic piece can drive the valve core to move from the opening position to the closing position.
2. The pipe coupling joint of claim 1, wherein, The inner circumferential wall of the connecting section is provided with a positioning part, the valve core elastic piece is a valve core spring, the valve core spring is sleeved on the valve core, and one end of the valve core spring away from the sealing end is in abutment with the positioning part along the first direction.
3. The pipe coupling joint of claim 2, wherein, The utility model further includes the stroke limiting piece, the stroke limiting piece is connected on one side of the handle close to the valve body, the outer circumferential wall of the valve body is provided with a limiting block, the limiting block has two limiting parts oppositely arranged along the rotating direction of the handle, when the handle is located in the opening position, the stroke limiting piece is limited and cooperates with one limiting part, and when the handle is located in the closing position, the stroke limiting piece is limited and cooperates with the other limiting part.
4. The pipe coupling joint of claim 3, wherein, The stroke limiting piece includes a limiting block, a rotating shaft part and a handle part connected in sequence, the rotating shaft part is rotatably connected with the handle and can rotate the stroke limiting piece from the locking position to the separation position, when the stroke limiting piece is located in the locking position, the limiting block is limited and cooperates with any one limiting part, when the stroke limiting piece is located in the separation position, the limiting block is separated from the two limiting parts.
5. The pipe coupling joint of claim 2, wherein, The handle part and the handle are further connected with the locking elastic piece, and the locking elastic piece can drive the stroke limiting piece to rotate from the separation position to the locking position.
6. The pipe coupling joint of claim 5, wherein, The main shaft is spaced apart from the valve core, and the axial direction of the main shaft is perpendicular to the axial direction of the valve core.
7. The pipe coupling joint of claim 6, wherein, 8. The pipe coupling joint of claim 2, wherein, 9. A pipe coupling joint as claimed in any one of claims 2 to 8, wherein, The utility model also includes a shell, a clamping piece and a shell elastic piece, a clamping channel extending radially is formed in the peripheral wall of the male joint segment, the clamping piece is arranged in the clamping channel, the shell is sleeved on the outer periphery of the male joint segment, a clamping part and a receiving groove are arranged on the inner peripheral wall of the shell, the shell and the valve body are connected by the shell elastic piece, and the shell elastic piece can drive the shell to move from a release position to a clamping position. When the shell is in the release position, the receiving groove is arranged correspondingly with the clamping channel, and the clamping piece is arranged in the clamping channel and the receiving groove; when the shell is in the clamping position, the clamping part is arranged correspondingly with the clamping channel, and the clamping part abuts against the clamping piece to make the clamping piece protrude relative to the inner peripheral wall of the male joint segment.
10. The pipe coupling joint of claim 9, wherein, The peripheral wall of the valve body is provided with a mounting part, the shell elastic piece is a spring, and the shell elastic piece is connected with the valve body through the mounting part.