Pipeline joint and pipeline assembly

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a pipeline joint and a pipeline assembly, which comprise a joint fixed part and a joint movable part, the joint fixed part is provided with a water flow channel, the joint movable part is provided with a movable limiting channel, the joint fixed part is provided with a connecting part, and the movable limiting channel extends out of a movable limiting part. The connector fixed part is provided with a fixed limiting part, and the connector movable part can rotate relative to the connector fixed part after being installed on the connector fixed part. According to the utility model, the connector moving part is arranged on the connector fixing part, the connecting end on one side can be connected to the connector fixing part through the connecting part, the connecting end on the other side can be arranged on the connector moving part, and one connecting end can be prevented from driving the other connecting end during rotation through the characteristic of relative rotation; the flexible use effect of universal rotation around the axis of the pipeline is achieved, the situation that the water pipe is distorted and deformed or the spray head is loosened and damaged is avoided, and use is convenient for a user.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe connection, in particular to a pipe joint and a pipe assembly. Background Technique

[0002] In daily life, a pipe joint is a connecting structure used to connect water pipes to each other or to connect a water pipe to a nozzle. Among them, a water pipe or a nozzle is installed on the pipe joint as a connecting end, and is widely used in various aspects such as agricultural irrigation nozzles, bathroom shower heads, fire extinguishing nozzles, and car washing water hoses.

[0003] Traditional pipe joints have mainly been developed to enhance the tightness of connections and the convenience of installation. However, the development in improving the convenience of use has been slow. After most traditional pipe joints are installed, they can achieve basic use. However, when it is necessary to turn to different rotation angles or different rotation directions during use, the water pipes rotate synchronously with each other or the water pipe and the nozzle rotate synchronously. When the number of rotation turns is large, it is easy to cause the water pipe to twist and deform. In the light case, the water pipe is narrowed and blocked, and in the heavy case, the water pipe is twisted and broken, leaking water. Even if the connection part of the nozzle is loose or damaged, water leakage will also occur, which is not convenient for users.

[0004] In view of the above deficiencies, we need to develop a pipe joint and a pipe assembly to meet the usage requirements of the majority of users. Content of the Utility Model

[0005] In view of the problems existing in the existing pipe joints mentioned above, such as inconvenient rotation, easy twisting and deformation of the water pipe, and easy loosening and damage of the nozzle, the technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A pipe joint includes a joint fixing member and a joint movable member. A hollow and through water flow channel is provided in the middle of the joint fixing member, and a hollow and through movable limiting channel is opened in the middle of the joint movable member. One end of the joint fixing member for connecting the pipe orifice has a connecting portion;

[0007] The movable limiting channel extends towards the central axis direction to form a movable limiting portion for limiting the installation position of the joint fixing member, and the joint fixing member has a fixed limiting portion for cooperating with the movable limiting portion to limit the installation position of the joint movable member;

[0008] After the joint movable member is installed on the joint fixing member, it can rotate circumferentially relative to the joint fixing member.

[0009] Further, it further includes a first seal and a second seal for improving the watertightness. The joint fixing member has a first seal mounting portion for restricting the mounting position of the first seal, and the joint movable member has a second seal mounting portion for restricting the mounting position of the second seal.

[0010] Further, one end of the first seal mounting portion away from the connecting portion has a first anti - detachment structure for restricting the axial positioning of the first seal, and one end of the second seal mounting portion away from the movable limiting portion has a second anti - detachment structure for restricting the axial positioning of the second seal.

[0011] Further, the first seal mounting portion extends out from the outside of the joint fixing member to form a first limiting boss for restricting the axial positioning of the first seal, and the second seal mounting portion extends out from the outside of the joint movable member to form a second limiting boss for restricting the axial positioning of the second seal.

[0012] Further, the first seal has a first seal edge for mounting on the first seal mounting portion. The outside of the first seal edge extends away from the center direction to form a second seal edge. The second seal edge extends away from the connecting portion direction to form a third seal edge. The third seal edge extends away from the first seal edge direction to form a fourth seal edge.

[0013] Further, the outside of the first limiting boss has a first conical surface structure a, the movable limiting channel has a second conical surface structure b for cooperating with the first conical surface structure a, and the first seal has a third conical surface structure c for cooperating with the second conical surface structure b.

[0014] Further, the outside of the connecting portion has an undercut structure. The undercut structure has a number of conical undercuts arranged axially along the central axis of the joint fixing member and connected in series. The outer diameter of one side of the conical undercut away from the middle of the joint fixing member is smaller, and the outer diameter of one side of the conical undercut close to the middle of the joint fixing member is larger.

[0015] A pipeline assembly includes a pipeline member for installing the pipeline joint. The pipeline joint is cooperatively connected with the pipeline member through the connecting portion, and the water flow channel communicates with the inner channel of the pipeline member.

[0016] Further, a universal fastening joint is installed on the outside of the pipeline member, and the outside of the universal fastening joint has an anti - slip structural surface for facilitating screwing.

[0017] Further, a positioning snap cover for restricting the installation position of the universal fastening joint is installed between the universal fastening joint and the pipe joint. The positioning snap cover is hollow and through, and has a snap cover edge, and the snap cover edge is installed between the fixed limiting portion and the pipe member.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. A joint movable member is installed on the joint fixing member of the present utility model. One connecting end can be connected to the joint fixing member through the connecting portion, and the other connecting end can be installed on the joint movable member. Due to the characteristic that the joint movable member can rotate relative to the joint fixing member, when one connecting end rotates, it can avoid driving the other connecting end, achieving the flexible use effect of being able to rotate in all directions around the pipe axis, avoiding the situation of water pipe distortion or sprinkler loosening and damage, and facilitating the user to use.

[0020] 2. Sealing members are respectively installed on the joint fixing member and the joint movable member of the present utility model, and the sealing effect of preventing water leakage is achieved through the sealing members. Further, a first sealing installation portion for restricting the installation position of the first sealing member is provided on the joint fixing member, and a second sealing installation portion for restricting the installation position of the second sealing member is provided on the joint movable member, making the installation and use of the sealing members more stable and not easily falling off.

[0021] 3. The present utility model is respectively provided with mutually cooperating conical surface structures on the joint fixing member, the joint movable member and the first sealing member, which enables a greater improvement in the installation efficiency of the fittings during the production process, shortens the assembly time, reduces the production cost, reduces the installation difficulty, and can also save the assembly space for the overall structure.

[0022] 4. The present utility model is provided with an anti - buckling structure on the outer side of the connecting portion for connecting the pipe orifice. The anti - buckling structure strengthens the connection force with the pipe inner channel through the anti - buckling design of the conical surface anti - buckling, making the connection between the joint fixing member and the pipe member more stable. At the same time, the conical surface design of the conical surface anti - buckling is used to reduce the resistance when the connecting portion enters the pipe inner channel, simultaneously meeting the requirements of enhancing the connection force and reducing the installation resistance, making the installation of the pipe joint more firm.

[0023] 5. A positioning snap cover is installed between the pipe joint and the pipe fitting of the present utility model. The positioning snap cover is positioned by the snap cover edge, and the generally used fastening joint is abutted by the tapered surface structure that is inclined and opened. When the generally used fastening joint connects the pipe orifice, a tight self-locking force can be generated. The self-locking force makes it not easy for water to seep or leak between the positioning snap cover and the fastening limit part, achieving a watertight effect. At the same time, the self-locking force can also be used to tighten the contact of the pipe orifice installed on the first sealing member, achieving the effect of overall watertightness and not being prone to leakage. On this basis, the snap cover edge is arranged on the side with a smaller outer diameter of the tapered surface structure, so that after the snap cover edge is tightly installed, it does not affect the use of the joint moving part, and at the same time meets the effects of flexible circumferential rotation and sealing to prevent leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. is a perspective view of a pipe joint and a pipe assembly of the present utility model.

[0025] Figure 2 FIG. is an exploded perspective view of a pipe joint and a pipe assembly of the present utility model.

[0026] Figure 3 FIG. is an axial view of a pipe joint and a pipe assembly of the present utility model.

[0027] Figure 4 is Figure 3 the A-A sectional perspective view of

[0028] Figure 5 is Figure 3 the A-A sectional elevation view of

[0029] Figure 6 FIG. is a perspective view of a pipe joint of the present utility model.

[0030] Figure 7 is Figure 6 the B-B sectional perspective view of

[0031] Figure 8 is Figure 6 the B-B sectional exploded perspective view of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0033] Optionally, in some embodiments, the joint fixing member 100 or the joint moving member 200 can be made of materials such as metal, plastic, rubber, etc. Preferably, the joint fixing member 100 or the joint moving member 200 is made of plastics such as PVC, PE, ABS, etc., which has the characteristics of high hardness, corrosion resistance, low cost, high pressure resistance, etc., and is suitable as a pipe joint for connecting components in contact with liquids.

[0034] Optionally, in some embodiments, the first seal 300 or the second seal 400 may be made of elastic soft materials such as plastic or rubber. Preferably, the first seal 300 or the second seal 400 is made of elastic soft materials such as rubber or silica gel, which have good elastic reset characteristics. After contacting with hard materials, they can have good water tightness and reduce the occurrence of water seepage and leakage. They are suitable as pipe joints for sealing components in contact with liquids.

[0035] Optionally, in some embodiments, the pipe fitting 500 may be made of materials such as metal, plastic, or rubber. Preferably, the pipe fitting 500 is made of plastics such as PVC, PE, or ABS, which have characteristics such as corrosion resistance, low cost, and high pressure resistance. It is suitable as a pipe joint for connecting components in contact with liquids. On this basis, the plastic pipe fitting 500 can be made to have pipe characteristics with high hardness or good flexibility according to actual usage conditions.

[0036] Optionally, in some embodiments, the universal fastening joint 600 or the positioning cover 700 may be made of materials such as metal, plastic, or rubber. Preferably, the universal fastening joint 600 or the positioning cover 700 is made of pure copper, copper alloy, or stainless steel, which have characteristics such as strong corrosion resistance, high mechanical strength, high temperature resistance, and long service life. They are suitable as pipe joints for connecting components in contact with liquids. On this basis, electroplating treatment can also be performed on the surface of pure copper or copper alloy to increase its protective and durable characteristics.

[0037] Embodiment 1:

[0038] As Figures 6 to 8 shown, a pipe joint includes a joint fixing member 100 and a joint movable member 200. A hollow and through water flow channel 11 is provided in the middle of the joint fixing member 100. A hollow and through movable limiting channel 21 is formed in the middle of the joint movable member 200. One end of the joint fixing member 100 for connecting to the pipe orifice has a connecting portion 12. The movable limiting channel 21 extends in the direction of the central axis to form a movable limiting portion 22 for restricting the installation position of the joint fixing member 100. The joint fixing member 100 has a fixed limiting portion 13 for cooperating with the movable limiting portion 22 to restrict the installation position of the joint movable member 200. After the joint movable member 200 is installed on the joint fixing member 100, it can rotate circumferentially relative to the joint fixing member 100.

[0039] More specifically, in this embodiment, both the joint fixing member 100 and the joint movable member 200 adopt a rotary body structure as the main structure, so as to facilitate smooth circumferential flexible rotation after installation. The pipeline or the nozzle can be installed as a connection end on the pipeline joint. As an intermediate transfer component, the pipeline joint can be connected to two connection ends at different positions through the joint fixing member 100 and the joint movable member 200 respectively. Among them, the joint fixing member 100 can be used to be installed on the pipeline, the joint movable member 200 can be used to be installed on the pipeline or the nozzle. The joint movable member 200 has a hollow through activity limiting channel 21 for the connection portion 12 of the joint fixing member 100 to pass through and be installed on the fixed limiting portion 13 of the joint fixing member 100.

[0040] During use, the connection portion 12 of the joint fixing member 100 passes through the activity limiting channel 21, so that the activity limiting portion 22 contacts and cooperates with the fixed limiting portion 13 for installation. The connection portion 12 extends into the pipe orifice to fix the installation position of the joint fixing member 100. The joint movable member 200 is located between the pipe orifice and the joint fixing member 100 and can rotate circumferentially relative to the joint fixing member 100 flexibly. The joint movable member 200 is then installed on another pipe orifice or nozzle to achieve the transfer effect between two connection ends at different positions (i.e., pipelines or nozzles, etc.). After the connection is completed, the liquid can flow from the inner channel of one connection end through the water flow channel 11 to the inner channel or the nozzle of the other connection end, realizing the smooth flow of the liquid. When one connection end (i.e., pipeline or nozzle, etc.) rotates actively, since the joint movable member 200 can rotate circumferentially relative to the joint fixing member 100 flexibly, the other connection end (i.e., pipeline or nozzle, etc.) will not be affected by the torsional force generated during passive rotation, avoiding distortion, deformation or rupture damage. There is no need to use accessories such as bearings or balls for transfer, reducing the production and manufacturing cost, shortening the installation time, accelerating the assembly efficiency, and also reducing the reverse influence of the torsional force caused by passive rotation on the steering resistance of active rotation, facilitating the user to rotate the connection end (i.e., pipeline or nozzle, etc.) flexibly and facilitating the user to use.

[0041] As another embodiment of Embodiment 1, the pipe joint itself can also be used alone as a nozzle. It only needs to pass the connecting portion 12 of the joint fixing member 100 through the movable limiting channel 21, so that the movable limiting portion 22 contacts and cooperates with the fixed limiting portion 13 and is installed properly. The connecting portion 12 extends into the pipe orifice to fix the installation position of the joint fixing member 100, and then it can be directly used as a nozzle to spray water. When in use, the user can pinch the outside of the joint movable member 200 with fingers of the hand to drag and rotate the water pipe. When rotating in a certain direction for spraying, the fingers of the hand serve as the power source for active rotation. By utilizing the flexible rotation of the joint movable member 200, it can avoid the fingers directly contacting the outside of the water pipe in the traditional way, reduce the friction and rotational resistance between the fingers and the outside of the water pipe, and also reduce the reverse influence of the torsional force caused by passive rotation on the steering resistance of active rotation. It is convenient for installation and use, and is user-friendly.

[0042] Embodiment 2:

[0043] Based on Embodiment 1, as Figures 6 to 8 shown in a pipe joint, it further includes a first sealing member 300 and a second sealing member 400 for improving water tightness. In this embodiment, both the first sealing member 300 and the second sealing member 400 adopt a rotary body structure as the main structure, so as to facilitate the smooth circumferential flexible rotation after installation. The first sealing member 300 and the second sealing member 400 are made of rubber. The rubber material has good corrosion resistance, elasticity, soft toughness and other characteristics, and is suitable for the installation positions that utilize elastic sealing. It still has good elasticity after being used repeatedly for many times, forming a good water tight effect. The first sealing member 300 has a first sealing installation channel 36 that is hollow and through for easy installation, and the second sealing member 400 has a second sealing installation channel 42 that is hollow and through for easy installation.

[0044] More specifically, the joint fixing member 100 has a first sealing installation portion 14 for limiting the installation position of the first sealing member 300. The first sealing installation portion 14 is located on the side of the joint fixing member 100 away from the connecting portion 12. Installing the first sealing member 300 on the first sealing installation portion 14 can enhance the connection water tightness of the pipe joint near the liquid flow position. The connecting end (i.e., the pipe or nozzle, etc.) is installed in the pipe joint so that the contact surface or contact edge presses against the first sealing member 300. The assembly pressure causes the surface structure of the first sealing member 300 to deform, and the resilience of the rubber material is utilized to fully seal the position of the contact surface or contact edge, forming a sealing effect to prevent liquid leakage.

[0045] More specifically, the joint movable member 200 has a second seal mounting portion 23 for restricting the mounting position of the second seal 400. The second seal mounting portion 23 is located on the side of the joint movable member 200 away from the joint fixed member 100. Mounting the second seal 400 on the second seal mounting portion 23 can enhance the connection watertightness near the outside of the pipe joint. The connection end (i.e., the pipe or the nozzle, etc.) is fitted and installed on the pipe joint so that the contact surface or the contact edge presses against the second seal 400. The assembly pressure causes the surface structure of the second seal 400 to deform, and the resilience of the rubber material is used to fully seal the position of the contact surface or the contact edge, forming a sealing effect to prevent liquid leakage.

[0046] When the first seal 300 and the second seal 400 are simultaneously installed and used on the pipe joint, they can also come into contact with each other under the influence of the assembly pressure, sealing the gap between the first seal 300 and the second seal 400, and further improving the sealing effect of preventing liquid leakage. On this basis, the installed connection end (i.e., the pipe or the nozzle, etc.) can generate frictional force by pressing against the first seal 300 or the second seal 400, so that one connection end can drive the joint fixed member 100 through the frictional force of the first seal 300, and the other connection end can drive the joint movable member 200 through the frictional force of the second seal 400, forming a relatively flexible rotation assembly effect while maintaining good watertightness, avoiding environmental pollution or leakage caused by the leakage of the liquid in the pipe, and improving the convenience and practicality of using the pipe joint.

[0047] Embodiment 3:

[0048] On the basis of Embodiment 2, as Figures 7 to 8 shown in a pipe joint, one end of the first seal mounting portion 14 away from the connecting portion 12 has a first anti - detachment structure 141 for restricting the axial positioning of the first seal 300. More specifically, the first anti - detachment structure 141 adopts a groove shape recessed towards the water flow channel 11. One side of the first anti - detachment structure 141 away from the connecting portion 12 has a first boss shape 1411 extending in the direction away from the water flow channel 11. The first seal 300 is engaged in the groove shape of the first anti - detachment structure 141, and the axial mounting position of the first seal 300 is restricted by the first boss shape 1411, so that the first seal 300 can be stably installed and will not easily loosen and fall off, and still can maintain good elastic reset performance after repeated disassembly and assembly friction for many times.

[0049] One end of the second seal mounting portion 23 away from the movable limit portion 22 has a second anti - detachment structure 231 for restricting the axial positioning of the second seal 400. More specifically, the second anti - detachment structure 231 is in the shape of a groove recessed towards the movable limit channel 21. One side of the second anti - detachment structure 231 away from the movable limit portion 22 has a second boss shape 2311 extending in the direction away from the movable limit channel 21. The second seal 400 is engaged in the groove shape of the second anti - detachment structure 231, and the axial mounting position of the second seal 400 is restricted by the second boss shape 2311, so that the second seal 400 can be stably installed and will not easily loosen and fall off, and still maintain good elastic reset performance after repeated disassembly, assembly and friction for many times.

[0050] As another embodiment of Embodiment 2, as Figures 7 to 8 shown in a pipe joint, the first seal mounting portion 14 extends from the outside of the joint fixing member 100 towards the direction away from the water flow channel 11 to form a first limit boss 142 for restricting the axial positioning of the first seal 300. When the first seal 300 is sleeved into the first seal mounting portion 14, the axial mounting position of the sleeve can also be defined by the first limit boss 142, playing a role of rapid positioning. During use, it can also prevent the first seal 300 from being pressed and retracted. The first limit boss 142 and the connection end (i.e., a pipe or a nozzle, etc.) form a structure for clamping the first seal 300, improving the sealing effect of preventing liquid leakage.

[0051] The second seal mounting portion 23 extends from the outside of the joint movable member 200 towards the direction away from the movable limit channel 21 to form a second limit boss 232 for restricting the axial positioning of the second seal 400. When the second seal 400 is sleeved into the second seal mounting portion 23, the axial mounting position of the sleeve can also be defined by the second limit boss 232, playing a role of rapid positioning. During use, it can also prevent the second seal 400 from being pressed and retracted. The second limit boss 232 and the connection end (i.e., a pipe or a nozzle, etc.) form a structure for clamping the second seal 400, improving the sealing effect of preventing liquid leakage.

[0052] As another embodiment of Embodiment 2, as Figures 7 to 8 shown in a pipe joint, the second seal 400 has a third anti - detachment structure 41 for cooperating with the second anti - detachment structure 231. The third anti - detachment structure 41 is used to be engaged in the groove structure formed by the second anti - detachment structure 231, so that the second seal 400 can be stably installed and will not easily loosen and fall off, and still maintain good elastic reset performance after repeated disassembly, assembly and friction for many times.

[0053] Embodiment 3:

[0054] Based on any of the above - mentioned embodiments, as Figures 7 to 8A pipe joint as shown, the first seal 300 has a first sealing edge 31 for installation on the first seal mounting portion 14. The outer side of the first sealing edge 31 extends away from the center direction to form a second sealing edge 32. The second sealing edge 32 extends away from the connecting portion 12 to form a third sealing edge 33. The third sealing edge 33 extends away from the first sealing edge 31 to form a fourth sealing edge 34.

[0055] More specifically, the side length of the first sealing edge 31 is similar to the groove length of the first anti - detachment structure 141 of the first seal mounting portion 14. After the first sealing edge 31 is placed into the first anti - detachment structure 141, it can smoothly engage the axial position of the first seal 300 on the joint fixture 100. Through the elastic wrapping force of the first seal 300, the situation of the first seal 300 loosening and falling off can be avoided.

[0056] More specifically, the first sealing edge 31 encloses a hollow and through first seal mounting channel 36 around the center of the first seal 300. The joint fixture 100 passes through the first seal mounting portion 14 and is installed in the first seal mounting channel 36, so that the first sealing edge 31 is closely attached to the first anti - detachment structure 141.

[0057] More specifically, the outer surface of the first sealing edge 31 extends away from the first seal mounting channel 36 to form a second sealing edge 32. The second sealing edge 32 plays a role in strengthening the structure, forming a deformation resistance against the first sealing edge 31, and improving the elastic wrapping force of the first sealing edge 31 against the first anti - detachment structure 141.

[0058] More specifically, the third sealing edge 33 has an inclined angle cg with respect to the first sealing edge 31, which is inclined outward. The inclined angle cg makes there be a larger insertion space between the third sealing edge 33 and the first sealing edge 31, and expands at the opening away from the second sealing edge 32, making the installation of the connecting end more smooth and convenient.

[0059] More specifically, the extending direction of the fourth sealing edge 34 is perpendicular to the central axis of the first seal mounting channel 36, forming a sealing plane that can increase the contact area with the connecting end. When used in combination with the second seal 400, the first seal can press the gap position in contact with the second seal 400 through the fourth sealing edge 34, forming the effect of gap sealing, and further improving the sealing effect of preventing liquid from leaking from the water flow channel 11 to the outside.

[0060] As another embodiment of Embodiment 3, as Figures 7 to 8A pipe joint as shown, the first sealing edge 31, the second sealing edge 32 and the third sealing edge 33 enclose a sealing groove 35 into which a connecting end (i.e., a pipe or a nozzle, etc.) can extend. Compared with a single-sided sealing edge, the sealing groove 35 can generate more contact area and elastic pressing force with the connecting end, further improving the sealing effect of preventing liquid from leaking from the water flow channel 11 to the outside.

[0061] Embodiment 4:

[0062] Based on any of the above embodiments, as Figures 5 to 8 A pipe joint as shown, the outer side of the first limiting boss 142 has a first conical surface structure a, the movable limiting channel 21 has a second conical surface structure b for cooperating with the first conical surface structure a, and the first seal 300 has a third conical surface structure c for cooperating with the second conical surface structure b.

[0063] More specifically, the side with a smaller outer diameter of the first conical surface structure a is located near the fixed limiting part 13, the side with a larger outer diameter of the first conical surface structure a is located near the first anti-disengagement structure 141, and the first conical surface structure a has an inclination angle ag. The inclination angle ag is used to cooperate with the second conical surface structure b so that the first seal 300 has a larger space for the sealing groove 35, facilitating the insertion and installation of the connecting end (i.e., a pipe or a nozzle, etc.). The angle range of the inclination angle ag is controlled between 0 - 20 degrees. Preferably, the angle of the inclination angle ag is 10 degrees, which has the best effect. It can not only ensure that the volume after installation is not too large, but also has a certain degree of installation convenience, and at the same time has little negative impact on the sealing effect.

[0064] More specifically, the side with a smaller outer diameter of the second conical surface structure b is located near the movable limiting part 22, the side with a larger outer diameter of the second conical surface structure b is located away from the movable limiting part 22, and the second conical surface structure b has an inclination angle bg. The inclination angle bg makes the movable limiting channel 21 have a larger space for accommodating the joint fixing part 100 and the first seal 300. On this basis, the inclined setting also facilitates the installation of the joint fixing part 100 and the first seal 300, improving the installation efficiency. The angle range of the inclination angle bg is controlled between 0 - 20 degrees. Preferably, the angle of the inclination angle bg is 10 degrees, which has the best effect. It can not only ensure that the volume after installation is not too large, but also has a certain degree of installation convenience, and at the same time has little negative impact on the sealing effect.

[0065] More specifically, the side with a smaller outer diameter of the third conical surface structure c is located closer to the second sealing edge 32, and the side with a larger outer diameter of the third conical surface structure c is located closer to the fourth sealing edge 34. The third conical surface structure c has an inclination angle cg, and the inclination angle cg enables a larger insertion space between the third sealing edge 33 and the first sealing edge 31, and expands at the opening away from the second sealing edge 32, making the installation of the inserted connection end smoother and more convenient. The angle range of the inclination angle cg is controlled between 0 - 20 degrees. Preferably, the inclination angle cg is 10 degrees for the best effect, which can not only ensure that the volume after installation is not too large, but also have a certain degree of installation convenience, and at the same time have very little negative impact on the sealing effect.

[0066] As another embodiment of Embodiment 4, as Figures 7 to 8 shown in a pipe joint, the outer side of the second seal 400 has a fourth conical surface structure d. The side with a smaller outer diameter of the fourth conical surface structure d is located closer to the second limiting boss 232, and the side with a larger outer diameter of the fourth conical surface structure d is located away from the second limiting boss 232. The fourth conical surface structure d has an inclination angle dg, and the inclination angle dg can touch the installation position where the connection end is inserted to form a sealing effect with a certain elastic contact pressure, and can also enhance the friction force in contact with the connection end, enabling the connection end to drive the joint moving part 200 to rotate to form a flexible rotation effect. The angle range of the inclination angle dg is controlled between 0 - 20 degrees. Preferably, the inclination angle dg is 10 degrees for the best effect, which can not only ensure that the volume after installation is not too large, but also have a certain degree of installation convenience, and at the same time can enhance the sealing effect.

[0067] Embodiment 5:

[0068] Based on any of the above embodiments, as Figures 6 to 8 shown in a pipe joint, the outer side of the connecting portion 12 has an inverted buckle structure 121. The inverted buckle structure 121 has a number of conical inverted buckles 122 arranged axially along the central axis of the joint fixing part 100. The side of the conical inverted buckle 122 away from the middle of the joint fixing part 100 has a smaller outer diameter, and the side of the conical inverted buckle 122 closer to the middle of the joint fixing part 100 has a larger outer diameter.

[0069] More specifically, to further enhance the connection tightness between the joint fixture 100 and the inner wall of the pipeline, in this embodiment, an inverted buckle structure 121 that is easy to install and can generate a large disassembly resistance is added outside the connection part 12. The outer diameter of the inverted buckle structure 121 is larger than the aperture of the pipe orifice to be inserted. When in use, when the joint fixture 100 extends into the inner side wall of the elastic connection end (i.e., the pipeline, nozzle, etc.) through the inverted buckle structure 121, since the outer diameter of the tapered surface inverted buckle 122 on the side far from the middle of the joint fixture 100 is smaller, a number of tapered surface inverted buckles 122 on the inverted buckle structure 121 can reduce the insertion resistance of the connection part 12. The tapered surface inverted buckle 122 expands the elastic pipe orifice and extends into the connection end to complete the installation. During use, when the liquid flows through the water flow channel 11 from the inner pipe channel, since the outer diameter of the tapered surface inverted buckle 122 on the side close to the middle of the joint fixture 100 is larger, an annular contact surface that elastically presses against and expands the inner wall of the pipe is formed and a huge frictional force is generated. The connection part 12 resists the water flow impact and the pulling force of the connection end that cause the joint fixture 100 to become loose through a large amount of frictional force generated by a number of tapered surface inverted buckles 122, achieving a stable connection effect of preventing loosening and falling. On this basis, these annular contact surfaces can also have a sealing effect of preventing liquid leakage, forming a multi-layer watertight structure.

[0070] When disassembling the joint fixture 100, when the user's hand generates a frictional force exceeding the elastic pressing against and expanding the inner wall of the pipe, the connection part 12 can be smoothly pulled out and separated from the connection end (i.e., the pipeline, nozzle, etc.), which is convenient for the user to perform disassembly, maintenance, and replacement.

[0071] As another embodiment of Embodiment 5, the cross-sectional shape of the tapered surface inverted buckle 122 can adopt a cross-sectional extension contour formed by one of an acute triangle, an obtuse triangle, a trapezoid, a circle, an ellipse, etc., and one of the cross-sectional shapes can be selected according to actual installation needs or user needs for production.

[0072] As another embodiment of Embodiment 5, the side of the tapered surface inverted buckle 122 close to the joint fixture 100 is perpendicular to the central axis of the connection part 12, further enhancing the frictional force of the elastic pressing against and expanding the inner wall of the pipe, and improving the effects of preventing loosening and watertightness.

[0073] Embodiment 6:

[0074] Based on any of the above embodiments, the pipeline joint is combined with pipeline components to form a pipeline assembly for use. As Figures 1 to 5 shown in a pipeline assembly, which includes a pipeline component 500 for installing the pipeline joint. The pipeline joint is cooperatively connected with the pipeline component 500 through the connection part 12, and the water flow channel 11 is communicated with the inner pipe channel 51 of the pipeline component 500.

[0075] More specifically, the pipe fitting 500 is a pipe structure with an unlimited length and allowing liquid to flow through. The pipe fitting 500 has a hollow and through inner pipe channel 51. The pipe fitting 500 adopts a multi-layer pipe wall structure with two or more layers. Among them, the pipe wall structure close to the inner pipe channel 51 is the inner pipe 52, and the inner pipe 52 is made of a relatively soft soft rubber material such as plastic or rubber. In addition, the pipe wall structure close to the outside of the pipe fitting 500 is the outer pipe 53, and the outer pipe 53 is made of a relatively hard hard pipe material formed by plastic or metal braid, which is used to protect the pipe fitting 500 from being corroded and damaged easily. The outer pipe 53 wraps and sleeves the inner pipe 52 to form the pipe fitting 500. When in use, the joint fixing part 100 extends into the inner pipe channel 51 through the connecting part 12 and is connected to the inner pipe 52. It stops until the fixed limiting part 13 touches the pipe orifice of the outer pipe 53. By enhancing the friction force between the connecting part 12 and the inner pipe 52, the connection of the joint fixing part 100 is made more stable.

[0076] As another embodiment of Embodiment 6, the outer pipe 53 of the pipe fitting 500 is made of materials such as metal, glass, and plastic that have a certain rigidity and are not easily bent, forming a straight pipe structure or a curved pipe structure with a stable shape and not easily changing, so as to meet the structural strength requirements of users.

[0077] As another embodiment of Embodiment 6, when the inner pipe 52 and the outer pipe 53 of the pipe fitting 500 are of the same material, they are integrally formed in structure and the inner pipe 52 or the outer pipe 53 is not distinguished in structure, forming a pipe body with only one pipe wall thickness.

[0078] As another embodiment of Embodiment 6, when the inner pipe 52 and the outer pipe 53 of the pipe fitting 500 are of the same material, they adopt a multi-layer laminated pipe wall structure with two or more layers from the inside to the outside, but the inner pipe 52 or the outer pipe 53 is not distinguished in structure. The multi-layer laminated pipe wall has better ability to resist damage, improves the overall structural strength and overall compressive strength of the pipe fitting 500, and reduces the occurrence of pipe tearing and cracking.

[0079] As another embodiment of Embodiment 6, the same pipe joints can be respectively installed at both ends of the pipe fitting 500 in the length direction to form a pipe assembly with transfer functions at both ends.

[0080] Embodiment 7:

[0081] Based on Embodiment 6, as Figures 1 to 5A pipe component is shown. A universal fastening joint 600 is installed on the outer side of the pipe fitting 500. The universal fastening joint 600 is a connecting component for the pipe fitting 500 to be fitted and installed at another connecting end (i.e., a pipe or a sprinkler head, etc.). The universal fastening joint 600 has a fastening installation channel 64 for accommodating the pipe joint. The inner diameter of the fastening installation channel 64 is larger than the outer diameter of the pipe fitting 500, so that the universal fastening joint 600 can be smoothly sleeved on the outer side of the pipe fitting 500 and can slide smoothly along the outer side of the pipe fitting 500. On this basis, one end of the universal fastening joint 600 with the connecting structure 63 faces away from the connecting part 12 of the joint fixing member 100. The inner diameter of the connecting structure 63 is larger than the outer diameter of the pipe joint. Preferably, the connecting structure 63 adopts threaded connection as the main connecting method. The threaded structure has the convenience of installation and also has the self-locking property of preventing loosening in use.

[0082] More specifically, the outer side of the universal fastening joint 600 has a non-slip structural surface 61 that is convenient for screwing. The non-slip structural surface 61 has a flat surface parallel to the central axis of the universal fastening joint 600, which can facilitate the user to hold and screw by hand, or use tools such as a wrench to screw, forming the effect of stable installation or easy disassembly, increasing the friction of screwing, and avoiding slipping during the screwing process due to the smooth outer surface.

[0083] As another embodiment of Embodiment 7, the connecting structure 63 can adopt one of the connecting methods such as threaded connection, snap connection, magnetic attraction connection, interference plugging connection, screwing and clamping connection, contact surface friction connection, welding, and locking buckle as the technical means for the universal fastening joint 600 to connect to another connecting end (i.e., a pipe or a sprinkler head, etc.). The connecting structure 63 can select an existing structure corresponding to one of the connecting methods according to actual needs as the specific structure of the connection. Preferably, the connecting structure 63 adopts threaded connection as the main connecting method. The threaded structure has the convenience of installation and also has the self-locking property of preventing loosening in use.

[0084] As another embodiment of Embodiment 7, the cross-section of the non-slip structural surface 61 can be formed by a combination of straight lines and / or curves, such as one of the cross-section shapes like a long strip groove type, hexagonal chamfered circle, plum blossom shape, etc. The non-slip structural surface 61 can be set with a suitable cross-section shape according to actual needs.

[0085] As another embodiment of Embodiment 7, the outer side of the general fastening joint 600 has a sixth conical surface structure f. The side with a smaller outer diameter of the sixth conical surface structure f faces away from the anti-slip structure surface 61, and the side with a larger outer diameter of the sixth conical surface structure f faces closer to the anti-slip structure surface 61. Among them, the sixth conical surface structure f has an inclination angle fg, and the angle range of the inclination angle fg is controlled between 0 and 20 degrees. Preferably, the angle of the inclination angle fg is 10 degrees, which has the best effect. It can not only ensure that the volume after installation is not too large but also has a certain degree of installation convenience. Users can enhance the thrust of holding the general fastening joint 600 through the sixth conical surface structure f, so that a pushing force towards the installation connection direction is naturally generated by the sixth conical surface structure f during the installation of the general fastening joint 600, facilitating the user's installation.

[0086] Embodiment 8:

[0087] Based on Embodiment 7, as Figures 1 to 5 shown in a pipeline component, a positioning capping 700 for restricting the installation position of the general fastening joint 600 is installed between the general fastening joint 600 and the pipeline joint. The positioning capping 700 is hollow and through, and has a capping edge 71. The capping edge 71 is installed between the fixed limiting part 13 and the pipeline part 500.

[0088] More specifically, the positioning capping 700 adopts a thin-walled structure that is hollow and through. The side of the positioning capping 700 close to the fixed limiting part 13 is bent towards the hollow position to form the capping edge 71. The inner diameter of the hollow and through positioning capping 700 is larger than the aperture of the inner pipe channel 51 and larger than the outer diameter of the connecting part 12. During installation, the pipeline joint uses the connecting part 12 to pass through the hollow position of the capping edge 71 and is installed in the inner pipe channel 51, so that the capping edge 71 is clamped between the joint fixing part 100 and the pipeline part 500. The side of the positioning capping 700 away from the capping edge 71 faces the same direction as the extending direction of the connecting part 12 to fix the position of the positioning capping 700 on the pipeline part 500. Then, the side of the positioning capping 700 away from the capping edge 71 touches the general fastening joint 600 to restrict the installation position of the general fastening joint 600, so that a buffer zone is formed between the pipeline joint and the general fastening joint 600. When the general fastening joint 600 locks the other connection end (i.e., the pipeline or the nozzle, etc.), the structural influence on the pipeline joint is reduced, and the distance between the general fastening joint 600 and the pipeline joint can also be determined through the positioning capping 700. During disassembly, when the user screws the general fastening joint 600, it will not directly affect the pipeline joint, facilitating the user's installation and disassembly.

[0089] As another embodiment of Embodiment 8, the positioning card cover 700 has a fifth conical surface structure e. The side with a smaller outer diameter of the fifth conical surface structure e extends inward to form a card cover edge 71, and the side with a larger outer diameter of the fifth conical surface structure e abuts against the fastening limit part 62 inside the general fastening joint 600. Among them, the fifth conical surface structure e has an inclination angle eg, and the angle range of the inclination angle eg is controlled between 0 and 10 degrees. Preferably, the angle of the inclination angle eg is 5 degrees, which has the best effect. It can not only ensure that the volume after installation is not too large, but also has a certain installation convenience. On this basis, the card cover edge 71 is clamped and installed between the fixed limit part 13 and the pipe fitting 500. The axial installation position of the general fastening joint 600 relative to the pipe joint is restricted by the fastening limit part 62. After the general fastening joint 600 locks the other connection end, the positioning card cover 700 can still form a good sealing effect with the fastening limit part 62, further strengthening the original watertightness effect and serving as the outermost layer of sealing protection against liquid leakage.

[0090] As Figures 6 to 8 shown, one of the specific implementation manners of the present utility model is as follows:

[0091] During installation, the first seal 300 is sleeved on the first anti-disengagement structure 141 of the joint fixing member 100 through the first seal edge 31 to limit the installation position of the first seal 300. The first seal edge 31, the second seal edge 32, and the third seal edge 33 enclose a seal groove 35 into which a connection end (i.e., a pipe or a nozzle, etc.) can extend. The opening of the seal groove 35 faces away from the connection part 12.

[0092] The second seal 400 is sleeved on the second anti-disengagement structure 231 of the joint movable member 200 through the third anti-disengagement structure 41 to limit the installation position of the second seal 400. The side with a larger outer diameter of the fifth conical surface structure e of the second seal 400 faces away from the movable limit part 22.

[0093] The joint fixing member 100 passes through the movable limit channel 21 of the joint movable member 200 through the connection part 12, so that the fixed limit part 13 abuts against the movable limit part 22, completing the overall installation of the pipe joint.

[0094] The pipe joint can extend into the interface of one of its connection ends (i.e., a pipe or a nozzle, etc.) through the connection part 12. The pipe joint can be installed on the interface of the other connection end (i.e., a pipe or a nozzle, etc.) through the joint movable member 200 to form a transfer structure with both ends connected. When liquid flows, it can flow through the water flow channel 11 to connect the connection ends at both ends, realizing the normal flow function.

[0095] When one connecting end turns, the joint moving part 200 is driven by the second seal 400 to rotate circumferentially relative to the joint fixing part 100 of the other connecting end, realizing the flexible relative rotation and turning function of the connecting ends at both ends.

[0096] As Figures 1 to 8 shown, the second specific embodiment of the present utility model is as follows:

[0097] On the basis of the first specific embodiment, the connecting part 12 of the pipe joint can extend into the inner pipe channel 51 of the pipe part 500, so that the reverse buckling structure 121 strengthens the contact friction force with the inner pipe 52 through the conical surface reverse buckling 122, forming a stable installation. Then, the pipe part 500 is installed on the other connecting end (i.e., a pipe or a nozzle, etc.) through the universal fastening joint 600, forming a flexible turning transfer structure.

[0098] As Figures 1 to 8 shown, the third specific embodiment of the present utility model is as follows:

[0099] On the basis of the second specific embodiment, the connecting part 12 of the pipe joint can pass through the positioning cover 700 and be installed in the inner pipe channel 51 of the pipe part 500, so that the edge of the cover 71 is clamped and installed between the joint fixing part 100 and the pipe part 500. The side of the positioning cover 700 away from the edge of the cover 71 faces the same direction as the extending direction of the connecting part 12 to fix the orientation of the positioning cover 700 on the pipe part 500. Then, the side of the positioning cover 700 away from the edge of the cover 71 touches the universal fastening joint 600 to limit the installation position of the universal fastening joint 600, forming a stable installation. Then, the pipe part 500 is installed on the other connecting end (i.e., a pipe or a nozzle, etc.) through the universal fastening joint 600, forming a flexible turning transfer structure.

[0100] The above only uses examples to further illustrate the technical content of the present utility model for the convenience of readers to understand more easily, but it does not mean that the implementation modes of the present utility model are limited to this. Any technical extension or re-creation based on the present utility model is protected by the present utility model. The protection scope of the present utility model is subject to the claims.

Claims

1. A pipe joint, characterized in that: It includes a joint fixing member (100) and a joint movable member (200). A hollow and through water flow channel (11) is provided in the middle of the joint fixing member (100). A hollow and through movable limiting channel (21) is formed in the middle of the joint movable member (200). One end of the joint fixing member (100) for connecting to a pipe orifice has a connecting portion (12). The movable limiting channel (21) extends towards the central axis direction to form a movable limiting portion (22) for limiting the installation position of the joint fixing member (100). The joint fixing member (100) has a fixed limiting portion (13) for cooperating with the movable limiting portion (22) to limit the installation position of the joint movable member (200). After the joint movable member (200) is installed on the joint fixing member (100), it can rotate circumferentially relative to the joint fixing member (100).

2. The pipe joint according to claim 1, wherein: It further includes a first sealing member (300) and a second sealing member (400) for improving water tightness. The joint fixing member (100) has a first sealing installation portion (14) for limiting the installation position of the first sealing member (300). The joint movable member (200) has a second sealing installation portion (23) for limiting the installation position of the second sealing member (400).

3. The pipe joint according to claim 2, characterized in that: One end of the first sealing installation portion (14) away from the connecting portion (12) has a first anti - detachment structure (141) for limiting the axial positioning of the first sealing member (300). One end of the second sealing installation portion (23) away from the movable limiting portion (22) has a second anti - detachment structure (231) for limiting the axial positioning of the second sealing member (400).

4. A pipe joint according to claim 2, characterized in that: The first sealing installation portion (14) extends outwards from the outside of the joint fixing member (100) to form a first limiting boss (142) for limiting the axial positioning of the first sealing member (300). The second sealing installation portion (23) extends outwards from the outside of the joint movable member (200) to form a second limiting boss (232) for limiting the axial positioning of the second sealing member (400).

5. The pipe joint according to claim 2, characterized in that: The first sealing member (300) has a first sealing edge (31) for being installed on the first sealing installation portion (14). The outside of the first sealing edge (31) extends towards the direction away from the center to form a second sealing edge (32). The second sealing edge (32) extends towards the direction away from the connecting portion (12) to form a third sealing edge (33). The third sealing edge (33) extends towards the direction away from the first sealing edge (31) to form a fourth sealing edge (34).

6. A pipe joint according to claim 4, characterized in that: The outside of the first limiting boss (142) has a first conical surface structure a. The movable limiting channel (21) has a second conical surface structure b for cooperating with the first conical surface structure a. The first sealing member (300) has a third conical surface structure c for cooperating with the second conical surface structure b.

7. A pipe joint according to claim 1, characterized in that: The outer side of the connecting part (12) has an undercut structure (121), and the undercut structure (121) has a plurality of tapered surface undercuts (122) arranged axially along the central axis of the joint fixture (100). The outer diameter of the tapered surface undercut (122) is smaller on the side away from the middle of the joint fixture (100), and the outer diameter of the tapered surface undercut (122) is larger on the side close to the middle of the joint fixture (100).

8. Pipeline component, characterized in that: It includes a pipe fitting (500) for installing the pipe joint according to any one of claims 1-7. The pipe joint is cooperatively connected with the pipe fitting (500) through the connecting part (12), and the water flow channel (11) communicates with the inner channel (51) of the pipe fitting (500).

9. The pipeline component according to claim 8, characterized in that: A universal fastening joint (600) is installed on the outer side of the pipe fitting (500), and the outer side of the universal fastening joint (600) has a non-slip structural surface (61) that is convenient for screwing.

10. The pipeline component according to claim 9, characterized in that: A positioning cover (700) for restricting the installation position of the universal fastening joint (600) is installed between the universal fastening joint (600) and the pipe joint. The positioning cover (700) is hollow and has a cover edge (71), and the cover edge (71) is installed between the fixed limiting part (13) and the pipe fitting (500).

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