A double-channel extrusion tube and production process

Abstract

The present application relates to a dual-channel extrusion tube and production process, and relates to the technical field of pipeline production. In order to solve the problem of low adjustability when the male joint is connected, it includes a tube body and a male joint, the tube body includes a main channel and a secondary channel, the male joint includes a main joint and a secondary joint, the main joint is connected in the main channel, and the secondary joint is connected in the secondary channel; the outer wall of the main joint is provided with a connecting ring, the outer wall of the main joint is also provided with an annular groove, the connecting ring is sleeved in the annular groove and can rotate along the circumference of the annular groove, and the secondary joint is connected to the outer wall of the connecting ring; the side wall of the connecting ring is rotatably connected with a sliding rod, the outer wall of the main joint is provided with a sliding groove, the sliding rod is detachably connected in the sliding groove, and the secondary joint is slidably connected to the sliding rod. The present application has the effect of improving the adjustability of the male joint when connected.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline production, and in particular to a dual-channel extruded pipe and a production process. Background Art

[0002] A dual-channel pipe is a pipe with two flow channels. It can be used in cleaning appliances such as vacuum cleaners, and can also be used for gas and liquid transmission in industry or construction.

[0003] In the related art, a dual-channel pipe includes a pipe body, and the pipe body includes a main flow channel and a secondary flow channel, and the inner diameter of the main flow channel is larger than the inner diameter of the secondary flow channel; since the production of dual-channel pipes is relatively complicated, it is difficult to produce dual-channel pipes of longer lengths during production. Therefore, when long-distance transportation is required, the transportation pipeline usually requires multiple dual-channel pipes to be spliced ​​at one time along the length direction. When two dual-channel pipes are spliced, a male joint and a female joint are required. The male joint includes a main joint and a secondary joint. The diameter of the main joint is larger than that of the secondary joint. The main joint part is inserted into the main flow channel of one pipe body, and drives the secondary joint part to be inserted into the secondary flow channel of the corresponding pipe body; the female joint includes a sleeve, a plug and a mating head. The sleeve is inserted into the main flow channel of the other pipe body, and at the same time drives the plug to be inserted into the secondary flow channel of the corresponding pipe body. When the two pipe bodies are spliced, the part of the main joint of the male joint that is not inserted into the pipe body is inserted into the sleeve of the female joint, and at the same time drives the part of the secondary joint of the male joint that is not inserted into the pipe body to be inserted into the mating head of the female joint, so that the splicing of the two pipe bodies is completed.

[0004] Regarding the above-mentioned related technologies, in order to facilitate the production of male connectors, the connection method of the main connector and the auxiliary connector is usually integrated into one piece, so that when the main connector is inserted into the main channel, attention must be paid to the alignment of the auxiliary connector with the auxiliary channel; at the same time, since the positions of the main connector and the auxiliary connector are fixed, the depth of the main connector inserted into the main channel is also affected by the auxiliary connector, resulting in low adjustability when the male connector is connected. Summary of the invention

[0005] In order to improve the adjustability of the male connector during connection, the present application provides a dual-channel extrusion tube and a production process.

[0006] The present application provides a dual-channel extrusion tube and a production process using the following technical solutions:

[0007] A dual-channel extrusion tube comprises a tube body and a male joint, wherein the tube body comprises a main flow channel and a secondary flow channel, and the male joint comprises a main joint and a secondary joint, wherein the main joint is connected in the main flow channel, and the secondary joint is connected in the secondary flow channel; a connecting ring is provided on the outer side wall of the main joint, and an annular groove is also provided on the outer side wall of the main joint, wherein the connecting ring is sleeved in the annular groove and can rotate along the circumferential direction of the annular groove, and the secondary joint is connected to the outer side wall of the connecting ring; a sliding rod is rotatably connected to the side wall of the connecting ring, a sliding groove is provided on the outer side wall of the main joint, the sliding rod is detachably connected in the sliding groove, and the secondary joint is slidably connected to the sliding rod.

[0008] By adopting the above technical solution, when connecting the male joint, the male joint is moved to insert the main joint part into the main flow channel of the pipe body, and the outer wall of the main joint is against the inner wall of the main flow channel. The operator can directly seal the outer wall of the main joint with the inner wall of the main flow channel through adhesive or elastic ring; after a part of the main joint is inserted into the main flow channel, the slide rod is rotated out of the slide groove, and the slide rod drives the auxiliary joint to rotate, and then adjust the position of the auxiliary joint on the slide rod; at the same time, the connecting ring is rotated to drive the auxiliary joint to align with the auxiliary flow channel. After adjusting the position of the auxiliary joint, the slide rod is moved into the slide groove and fixed, and then the main joint is further pushed to insert into the main flow channel, driving the auxiliary joint to insert into the auxiliary flow channel, and the installation of the main joint on the pipe body can be completed. The setting of the connecting ring and the ring groove allows the auxiliary joint to rotate circumferentially relative to the main joint, and the setting of the slide rod and the slide groove allows the auxiliary joint to rotate axially relative to the main joint, so that when the main joint is inserted into the main flow channel, there is no need to pay attention to the corresponding position of the auxiliary joint and the auxiliary flow channel, and at the same time, the restriction of the auxiliary joint on the insertion depth of the main joint is reduced, so that the insertion depth of the main joint is adjustable, and the adjustability of the male joint is improved.

[0009] Preferably, the side wall of the connecting ring is rotatably connected to a mounting sleeve, one end of the sliding rod is inserted into the mounting sleeve and rotatably connected to the mounting sleeve; the outer side wall of the auxiliary joint is connected to a connecting block, the sliding rod passes through the connecting block and is threadedly connected to the connecting block; the outer side wall of the auxiliary joint is connected to a telescopic rod, the telescopic rod is arc-shaped, a groove is provided on the inner wall of the slide groove, and the telescopic rod is slidably connected in the groove at one end close to the groove.

[0010] By adopting the above technical solution, when adjusting the position of the auxiliary joint on the slide bar, the slide bar can be rotated first to drive the installation sleeve to rotate, so that the slide bar moves out of the slide groove and the telescopic rod extends synchronously; then the slide bar and the installation sleeve are rotated relative to each other, and the rotation of the slide bar drives the connection to move to adjust the position of the auxiliary joint on the slide bar. When the connecting block moves along the slide bar, the telescopic tube limits the connecting block to prevent the connecting block and the auxiliary joint from being driven to rotate by the slide bar; after adjusting the position of the auxiliary joint, the slide bar is moved into the slide groove to shrink the telescopic rod and insert it into the groove. The setting of the installation sleeve allows the slide bar to be moved out of the slide groove and adjusted, the setting of the connecting block and the telescopic rod makes the position adjustment of the auxiliary joint faster, and the cooperation of the telescopic rod and the groove makes the movement of the auxiliary joint more stable.

[0011] Preferably, the inner wall of the slide groove is rotatably connected with a card joint, the middle part of the card joint is connected to the inner wall of the slide groove, and a torsion spring is built in the rotating connection of the card joint; a card block for limiting the slide rod is provided at one end of the card joint, and the side wall of the card block is an arc-shaped wall; a disassembly hole is provided on the inner wall of the slide groove, and the disassembly hole is communicated with the outer wall of the auxiliary joint, and the end of the card joint away from the card block is located near the position where the disassembly hole is provided on the inner wall of the slide groove.

[0012] By adopting the above technical solution, when the sliding rod enters the sliding groove, it contacts the side wall of the card block, and under the guidance of the curved side wall of the card block, it pushes the card joint to rotate and make way. At this time, the torsion spring at the connection of the card joint is in a torsional deformation state; after the sliding rod further moves into the sliding groove and passes the position of the card block, the torsion spring elastic force at the connection of the card joint can drive the card joint to rotate and reset the card block; when the card joint needs to be rotated again to make way, a thin rod with a diameter smaller than the inner diameter of the disassembly hole can be inserted into the disassembly hole, and the thin rod further passes through the disassembly hole to push the card joint to rotate, so that the card block can make way for the sliding rod.

[0013] Preferably, the female connector comprises a sleeve, a plug and a mating head, and the mating head is connected to the plug; the plug is inserted into the secondary flow channel of the corresponding tube body, one end of the sleeve is inserted into the main flow channel of the corresponding tube body, the other end of the sleeve is for the main connector on the adjacent tube body to be inserted, and the mating head is for the secondary connector on the adjacent tube body to be inserted; the mating head comprises a telescopic tube and a connecting tube, one end of the telescopic tube is fixedly connected to the plug, the other end of the telescopic tube is connected to the connecting tube, and the connecting tube is slidably connected to the outer side wall of the sleeve.

[0014] By adopting the above technical solution, when one end of the current tube body needs to be connected to another tube body, the main joint of the male joint on the adjacent tube body is inserted into the sleeve of the female joint on the current tube body, and the position of the connecting tube on the outer wall of the sleeve is adjusted at the same time. The telescopic tube is correspondingly extended or shortened under the movement of the connecting tube; the movement of the main joint on the adjacent tube body drives the corresponding secondary joint to be inserted into the connecting tube of the female joint on the current tube body, and the splicing of the two tube bodies can be completed. The setting of the telescopic tube and the connecting tube and the sliding connection of the connecting tube allow the female joint to adjust the position of the connecting tube according to the insertion depth of the main joint, so that the end wall of the female joint and the male joint are stably attached, thereby improving the sealing when the two tube bodies are spliced.

[0015] Preferably, a plurality of elastic ropes are provided between the connecting tube and the plug, and two ends of the elastic ropes are respectively connected to the side wall of the connecting tube and the side wall of the plug.

[0016] When liquid is passed into the telescopic tube, the telescopic tube will bend under the action of the gravity of the liquid. When the telescopic tube is extended, the degree of bending of the telescopic tube is large, which will cause the connection between the telescopic tube, the connecting tube and the plug to be subjected to a large radial tension, resulting in the connection between the telescopic tube, the connecting tube and the plug to be easily broken. By adopting the above technical solution, the elastic rope can support the telescopic tube, reduce the degree of bending deformation caused by the extension of the telescopic tube and the liquid pressure, reduce the radial tension at the connection between the telescopic tube, the connecting tube and the plug, and reduce the possibility of breaking at the connection between the telescopic tube, the connecting tube and the plug.

[0017] A production process for dual channel extruded tubes:

[0018] S1, melt the plastic raw material, then add the molten plastic into the feed port of the extruder, and squeeze it into the mold under the shearing and extrusion action of the screw, and the raw material is extruded from the mold and then cooled to form a tube body;

[0019] S2. Move the male joint to insert the main joint into the main flow channel of the pipe body, and the outer wall of the main joint abuts against the inner wall of the main flow channel; when a part of the main joint is inserted into the main flow channel, according to the required insertion depth of the main joint, turn the slide bar out of the slide groove, turn the slide bar to adjust the position of the secondary joint on the slide bar, turn the connecting ring to align the secondary joint with the secondary flow channel, and then turn the slide bar into the slide groove, further insert the main joint to drive the secondary joint to be inserted into the secondary flow channel;

[0020] S3, move the female connector to insert the sleeve into the main flow channel of the tube body away from the male connector, and at the same time, the sleeve drives the plug to move and insert into the secondary flow channel of the corresponding tube body;

[0021] S4. When one end of the current pipe body needs to be connected to another pipe body, the main joint of the male joint on the adjacent pipe body is inserted into the sleeve of the female joint on the current pipe body, and the position of the connecting pipe on the outer wall of the sleeve is adjusted at the same time. The telescopic tube is extended or shortened accordingly with the movement of the connecting pipe; the movement of the main joint on the adjacent pipe body drives the corresponding secondary joint to be inserted into the connecting pipe of the female joint on the current pipe body.

[0022] By adopting the above technical solution, after the cooling of the pipe body is completed, the operator can adjust the connection of the male connector on the pipe body according to the application environment and installation requirements of the pipe body, and adjust the female connector accordingly, and then connect the female connector to the male connector, thereby improving the adjustability of the pipe body splicing.

[0023] As a preference:

[0024] S11, cooling and solidifying the melted plastic raw material, and then melting it again;

[0025] S112, repeat the steps in S11 2-3 times, and inject the molten plastic into the extruder.

[0026] By adopting the above technical solution, multiple melting and cooling of the plastic raw materials can make the internal molecules of the plastic more tightly bonded, thereby improving the strength, wear resistance and toughness of the tube body after extrusion molding.

[0027] As a preference:

[0028] S12, performing water mist cooling on the extruded formed tube body;

[0029] S121. Install a water mist concentration detection instrument at the water mist cooling area.

[0030] Generally, the extruded formed tube body is cooled by direct water spraying or water circulation cooling. Although the cooling rate of direct water spraying is high, the impact of water during water spraying causes the tube body to deform. Water circulation cooling needs to be carried out in the pipeline, and the heat conduction efficiency between the tube body and water is low, resulting in a low cooling rate. By adopting the above technical solution, water mist cooling can make a number of small water droplets directly attached to the outer wall of the tube body for absorption and cooling, ensuring the cooling rate of the tube body, while also avoiding the impact of water flow on the tube body, making the tube body less likely to deform, and the evaporation rate of a number of small water droplets is also fast, further improving the cooling rate of the tube body. The water mist concentration detection instrument can detect the water mist concentration at the water mist cooling point, and remind the operator to add water mist when the water mist concentration decreases.

[0031] As a preference:

[0032] S122. A negative pressure recovery device is provided at the water mist cooling location to recover heat from the high-temperature water vapor generated by evaporation;

[0033] S1221. A temperature detection device is provided at the water mist cooling location, and the negative pressure recovery device is closed after the temperature at the water mist cooling location is measured to be lower than a predetermined value.

[0034] By adopting the above technical solution, the high-temperature water vapor generated by water evaporation can be recovered by the negative pressure recovery device and utilized in other processes requiring heating, thereby realizing heat recovery and reducing energy waste. At the same time, the temperature detection device will detect the temperature at the water mist cooling point. When the temperature drops to a predetermined value, the negative pressure recovery device will be closed to reduce the situation where the negative pressure recovery device sucks away a large amount of water mist.

[0035] In summary, the present application includes at least one of the following beneficial technical effects:

[0036] 1. The setting of the connecting ring and the annular groove allows the auxiliary joint to rotate circumferentially relative to the main joint, and the setting of the sliding rod and the sliding groove allows the auxiliary joint to rotate axially relative to the main joint, so that when the main joint is inserted into the main channel, there is no need to pay attention to the corresponding position of the auxiliary joint and the auxiliary flow channel. At the same time, it also reduces the restriction of the auxiliary joint on the insertion depth of the main joint, makes the insertion depth of the main joint adjustable, and improves the adjustability of the male joint when connecting.

[0037] 2. The setting of the mounting sleeve enables the slide bar to be moved out of the slide groove and adjusted. The setting of the connecting block and the telescopic rod enables the position adjustment of the auxiliary joint to be faster. The cooperation of the telescopic rod and the groove enables the movement of the auxiliary joint to be more stable.

[0038] 3. The setting of the telescopic tube and the connecting tube and the sliding connection of the connecting tube allow the female joint to adjust the position of the connecting tube according to the insertion depth of the main joint, so that the end wall of the female joint and the male joint are stably attached, thereby improving the sealing performance when the two pipe bodies are spliced. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the cross-sectional structure of a dual-channel extrusion tube in an embodiment of the present application.

[0040] Figure 2 It is a structural schematic diagram used to reflect the positional relationship between the connecting ring and the main joint in the embodiment of the present application.

[0041] Figure 3 It is a cross-sectional schematic diagram used to illustrate the positional relationship among the auxiliary joint, the sliding rod and the telescopic tube in the embodiment of the present application.

[0042] Figure 4 It is a cross-sectional schematic diagram used to illustrate the positional relationship between the disassembly hole and the main joint in the embodiment of the present application.

[0043] Explanation of the reference numerals: 1. tube body; 11. main flow channel; 12. secondary flow channel; 2. male connector; 21. main connector; 211. slide groove; 212. groove; 213. annular groove; 214. connecting ring; 215. mounting sleeve; 216. sliding rod; 217. clamping connector; 218. clamping block; 219. disassembly hole; 22. secondary connector; 221. connecting block; 222. telescopic rod; 3. female connector; 31. sleeve; 32. plug; 33. mating head; 331. telescopic tube; 332. connecting tube; 333. elastic rope. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1-4 This application is described in further detail.

[0045] The present application embodiment discloses a dual-channel extrusion tube. Figure 1 The double-channel extruded tube includes a tube body 1, a male connector 2 and a female connector 3, and the male connector 2 and the female connector 3 are connected at both ends of the tube body 1; the tube body 1 includes a main channel 11 and a secondary channel 12, and the inner diameter of the main channel 11 is larger than the inner diameter of the secondary channel 12; the male connector 2 includes a main connector 21 and a secondary connector 22, and the secondary connector 22 is connected to the outer side wall of the main connector 21, and the female connector 3 includes a sleeve 31, a plug 32 and a mating head 33, and the plug 32 and the mating head 33 are connected to the outer side wall of the sleeve 31, and the mating head 33 is connected to the plug 32.

[0046] Reference Figure 2 and Figure 3 An annular groove 213 is provided on the outer wall of the main joint 21, and a connecting ring 214 is sleeved in the annular groove 213. The connecting ring 214 can rotate circumferentially along the annular groove 213. The side wall of the connecting ring 214 is rotatably connected to a mounting sleeve 215. The mounting sleeve 215 can rotate axially along the main joint 21. A sliding rod 216 is inserted into the mounting sleeve 215, and the sliding rod 216 is rotatably connected to the inner wall of the mounting sleeve 215.

[0047] Reference Figure 3 and Figure 4 The inner wall of the slide groove 211 is rotatably connected with a clamping joint 217, and the middle part of the clamping joint 217 is connected to the inner wall of the slide groove 211; a clamping block 218 is integrally formed at one end of the clamping joint 217 close to the opening of the slide groove 211, and the side wall of the clamping block 218 is set as an arc wall. A torsion spring is built in the rotating connection of the clamping joint 217, and the torsion spring drives the clamping joint 217 to rotate and drives the clamping block 218 to rotate toward the middle of the slide groove 211; a disassembly hole 219 is opened on the inner wall of the slide groove 211, and the disassembly hole 219 is communicated with the outer wall of the auxiliary joint 22, and the end of the clamping joint 217 away from the clamping block 218 is in contact with the position where the disassembly hole 219 is opened on the inner wall of the slide groove 211.

[0048] Reference Figure 3 The outer side wall of the auxiliary joint 22 is integrally formed with a connecting block 221, and the sliding rod 216 passes through the connecting block 221 and is threadedly connected to the connecting block 221; the outer side wall of the auxiliary joint 22 is also connected with a telescopic rod 222 by gluing or screwing, and the telescopic rod 222 is an arc-shaped rod, and a groove 212 is provided on the inner wall of the slide groove 211, and the groove 212 is provided along the length direction of the slide groove 211, and the end of the telescopic rod 222 close to the groove 212 can be slidably connected in the groove 212 through a slider.

[0049] When connecting the male connector 2, the male connector 2 is moved so that the main connector 21 is partially inserted into the main flow channel 11 of the tube body 1, and the outer wall of the main connector 21 is against the inner wall of the main flow channel 11. The operator can directly seal the outer wall of the main connector 21 and the inner wall of the main flow channel 11 through adhesive or an elastic ring; after a part of the main connector 21 is inserted into the main flow channel 11, the slide bar 216 is rotated out of the slide groove 211, and at this time, the telescopic tube 331 extends and extends out from the groove 212; according to the required insertion depth of the main connector 21, the slide bar 216 is rotated to drive the connecting block 221 to move to adjust the position of the auxiliary connector 22 on the slide bar 216. When the connecting block 221 moves along the slide bar 216, the telescopic tube 331 limits the connecting block 221 to prevent the connecting block 221 and the auxiliary connector 22 from being driven to rotate by the slide bar 216; at the same time, the connecting ring 214 is rotated to drive the auxiliary connector 22 to align with the auxiliary flow channel 12.

[0050] After adjusting the position of the secondary joint 22, the sliding rod 216 is moved into the sliding groove 211, so that the telescopic rod 222 is retracted and inserted into the groove 212; when the sliding rod 216 enters the sliding groove 211, it contacts the side wall of the block 218, and under the guidance of the arc-shaped side wall of the block 218, it pushes the clamping joint 217 to rotate and make way. At this time, the torsion spring at the connection of the clamping joint 217 is in a torsion deformation state; after the sliding rod 216 further moves into the sliding groove 211 and passes the position of the block 218, the torsion spring elastic force at the connection of the clamping joint 217 can drive the clamping joint 217 to rotate and reset the block 218; at this time, the main joint 21 is further pushed to insert into the main flow channel 11, driving the secondary joint 22 to insert into the secondary flow channel 12, and the installation of the main joint 21 on the pipe body 1 can be completed. When the card joint 217 needs to be rotated again to make way, a thin rod with a diameter smaller than the inner diameter of the disassembly hole 219 can be inserted into the disassembly hole 219. The thin rod further passes through the disassembly hole 219 to push the card joint 217 to rotate, so that the block 218 can make way for the slide bar 216.

[0051] Reference Figure 1 The mating head 33 includes a telescopic tube 331 and a connecting tube 332. One end of the telescopic tube 331 is fixedly connected to the plug 32, and the other end of the telescopic tube 331 is fixedly connected to the connecting tube 332. The connecting tube 332 can be slidably connected to the outer wall of the sleeve 31 through the cooperation of a slider and a slide groove.

[0052] When one end of the current tube body 1 needs to be connected to another tube body 1, the main joint 21 of the male joint 2 on the adjacent tube body 1 is inserted into the sleeve 31 of the female joint 3 on the current tube body 1, and the position of the connecting tube 332 on the outer wall of the sleeve 31 is adjusted. The telescopic tube 331 extends or shortens accordingly under the movement of the connecting tube 332; the movement of the main joint 21 on the adjacent tube body 1 drives the corresponding secondary joint 22 to be inserted into the connecting tube 332 of the female joint 3 on the current tube body 1, and the splicing of the two tube bodies 1 can be completed.

[0053] Reference Figure 1 A plurality of elastic ropes 333 are connected between the connecting tube 332 and the plug 32, and the two ends of the elastic ropes 333 are respectively connected to the side walls of the connecting tube 332 and the side walls of the plug 32; when liquid is passed into the telescopic tube 331, the telescopic tube 331 will bend under the action of the gravity of the liquid, and when the telescopic tube 331 is extended, the bending degree of the telescopic tube 331 is relatively large, so that the connection between the telescopic tube 331, the connecting tube 332 and the plug 32 is subjected to a large radial tension, resulting in the connection between the telescopic tube 331, the connecting tube 332 and the plug 32 being easily broken; the elastic ropes 333 can support the telescopic tube 331, reduce the degree of bending deformation when the telescopic tube 331 is extended and subjected to liquid pressure, reduce the radial tension at the connection between the telescopic tube 331, the connecting tube 332 and the plug 32, and reduce the possibility of breaking at the connection between the telescopic tube 331, the connecting tube 332 and the plug 32.

[0054] The implementation principle of a dual-channel extrusion tube in the embodiment of the present application is:

[0055] The male connector 2 is moved so that the main connector 21 is partially inserted into the main channel 11 of the tube body 1, and the outer wall of the main connector 21 abuts against the inner wall of the main channel 11. The operator can directly seal the outer wall of the main connector 21 and the inner wall of the main channel 11 by gluing or an elastic ring; after a part of the main connector 21 is inserted into the main channel 11, the slide bar 216 is rotated out of the slide groove 211, and at this time, the telescopic tube 331 extends and extends out from the groove 212; according to the required insertion depth of the main connector 21, the slide bar 216 is rotated to drive the connecting block 221 to move to adjust the position of the auxiliary connector 22 on the slide bar 216. When the connecting block 221 moves along the slide bar 216, the telescopic tube 331 limits the connecting block 221 to prevent the connecting block 221 and the auxiliary connector 22 from being driven to rotate by the slide bar 216.

[0056] After adjusting the position of the auxiliary joint 22, the sliding rod 216 is moved into the sliding groove 211. When the sliding rod 216 enters the sliding groove 211, it contacts the side wall of the block 218 and pushes the clamping joint 217 to rotate and make way under the guidance of the arc-shaped side wall of the block 218. At this time, the torsion spring at the connection of the clamping joint 217 is in a torsion deformation state; after the sliding rod 216 further moves into the sliding groove 211 and passes the position of the block 218, the torsion spring elastic force at the connection of the clamping joint 217 can drive the clamping joint 217 to rotate and reset the block 218; at this time, the main joint 21 is further pushed to insert into the main flow channel 11, driving the auxiliary joint 22 to insert into the auxiliary flow channel 12, and the installation of the male joint 2 on the pipe body 1 can be completed.

[0057] The arrangement of the connecting ring 214 and the annular groove 213 allows the auxiliary joint 22 to rotate circumferentially relative to the main joint 21, and the arrangement of the sliding rod 216 and the sliding groove 211 allows the auxiliary joint 22 to rotate axially relative to the main joint 21, so that when the main joint 21 is inserted into the main channel 11, there is no need to pay attention to the corresponding positions of the auxiliary joint 22 and the auxiliary channel 12. At the same time, it also reduces the restriction of the auxiliary joint 22 on the insertion depth of the main joint 21, makes the insertion depth of the main joint 21 adjustable, and improves the adjustability of the male joint 2 when connected.

[0058] The present application also discloses a production process for a dual-channel extruded tube:

[0059] S1, melt the plastic raw material, then add the molten plastic into the feed port of the extruder, and squeeze it into the mold under the shearing and extrusion action of the screw, and the raw material is extruded from the mold and then cooled to form a tube body 1;

[0060] S11, cooling and solidifying the melted plastic raw material, and then melting it again;

[0061] S112, repeat the steps in S11 2-3 times, and inject the molten plastic into the extruder;

[0062] S12, performing water mist cooling on the extruded formed tube body 1;

[0063] S121. Install a water mist concentration detection instrument at the water mist cooling area;

[0064] S122. A negative pressure recovery device is provided at the water mist cooling location to recover heat from the high-temperature water vapor generated by evaporation;

[0065] S1221. A temperature detection device is provided at the water mist cooling location, and the negative pressure recovery device is closed after the temperature at the water mist cooling location is measured to be lower than a predetermined value.

[0066] S2, move the male connector 2 to insert the main connector 21 into the main flow channel 11 of the tube body 1, and the outer wall of the main connector 21 abuts against the inner wall of the main flow channel 11; when a part of the main connector 21 is inserted into the main flow channel 11, according to the required insertion depth of the main connector 21, the slide bar 216 is rotated out of the slide groove 211, the slide bar 216 is rotated to adjust the position of the auxiliary connector 22 on the slide bar 216, the connecting ring 214 is rotated to align the auxiliary connector 22 with the auxiliary flow channel 12, and then the slide bar 216 is rotated into the slide groove 211, and the main connector 21 is further inserted to drive the auxiliary connector 22 to be inserted into the auxiliary flow channel 12;

[0067] S3, move the female connector 3 to insert the sleeve 31 into the main flow channel 11 of the tube body 1 away from the end of the male connector 2, and at the same time, the sleeve 31 drives the plug 32 to move and insert into the secondary flow channel 12 of the corresponding tube body 1;

[0068] S4. When one end of the current tube body 1 needs to be connected to another tube body 1, the main joint 21 of the male joint 2 on the adjacent tube body 1 is inserted into the sleeve 31 of the female joint 3 on the current tube body 1, and the position of the connecting tube 332 on the outer wall of the sleeve 31 is adjusted. The telescopic tube 331 is correspondingly extended or shortened under the movement of the connecting tube 332; the movement of the main joint 21 on the adjacent tube body 1 drives the corresponding secondary joint 22 to be inserted into the connecting tube 332 of the female joint 3 on the current tube body 1.

[0069] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dual-channel extruded tube, comprising a tube body (1) and a male connector (2), wherein the tube body (1) comprises a main channel (11) and a secondary channel (12), and the male connector (2) comprises a main connector (21) and a secondary connector (22), wherein the main connector (21) is connected to the main channel (11), and the secondary connector (22) is connected to the secondary channel (12); It is characterized in that The outer wall of the main joint (21) is provided with a connecting ring (214), and the outer wall of the main joint (21) is also provided with an annular groove (213). The connecting ring (214) is sleeved in the annular groove (213) and can rotate along the circumference of the annular groove (213). The auxiliary joint (22) is connected to the outer wall of the connecting ring (214); the side wall of the connecting ring (214) is rotatably connected with a sliding rod (216). The outer wall of the main joint (21) is provided with a sliding groove (211). The sliding rod (216) is detachably connected to the sliding groove (211), and the auxiliary joint (22) is slidably connected to the sliding rod (216); The side wall of the connecting ring (214) is rotatably connected to a mounting sleeve (215), one end of the sliding rod (216) is inserted into the mounting sleeve (215) and is rotatably connected to the mounting sleeve (215); the outer side wall of the auxiliary joint (22) is connected to a connecting block (221), the sliding rod (216) passes through the connecting block (221) and is threadedly connected to the connecting block (221); the outer side wall of the auxiliary joint (22) is connected to a telescopic rod (222), the telescopic rod (222) is arc-shaped, the inner wall of the slide groove (211) is provided with a groove (212), and one end of the telescopic rod (222) close to the groove (212) is slidably connected in the groove (212); The inner wall of the slide groove (211) is rotatably connected with a clamping joint (217), the middle part of the clamping joint (217) is connected to the inner wall of the slide groove (211), and a torsion spring is built into the rotatable connection of the clamping joint (217); a clamping block (218) for limiting the slide rod (216) is arranged at one end of the clamping joint (217), and the side wall of the clamping block (218) is an arc-shaped wall; a disassembly hole (219) is opened on the inner wall of the slide groove (211), and the disassembly hole (219) is communicated with the outer wall of the auxiliary joint (22); the end of the clamping joint (217) away from the clamping block (218) is located near the position where the disassembly hole (219) is opened on the inner wall of the slide groove (211).

2. The dual-channel extruded tube according to claim 1 further comprises a female connector (3), It is characterized in that The female connector (3) comprises a sleeve (31), a plug (32) and a matching head (33), wherein the matching head (33) is connected to the plug (32); the plug (32) is inserted into the secondary flow channel (12) of the corresponding tube body (1), one end of the sleeve (31) is inserted into the primary flow channel (11) of the corresponding tube body (1), the other end of the sleeve (31) is for the main connector (21) on the adjacent tube body (1) to be inserted, and the matching head (33) is for the secondary connector (22) on the adjacent tube body (1) to be inserted; the matching head (33) comprises a telescopic tube (331) and a connecting tube (332), one end of the telescopic tube (331) is fixedly connected to the plug (32), the other end of the telescopic tube (331) is connected to the connecting tube (332), and the connecting tube (332) is slidably connected to the outer wall of the sleeve (31).

3. The dual-channel extruded tube according to claim 2, further comprising a female connector (3), It is characterized in that A plurality of elastic ropes (333) are arranged between the connecting tube (332) and the plug (32), and two ends of the elastic ropes (333) are respectively connected to the side wall of the connecting tube (332) and the side wall of the plug (32).

4. A process for producing a dual channel extruded tube as claimed in claim 3, Features: S1, melting the plastic raw material, then adding the molten plastic into the feed port of the extruder, and extruding it into the mold under the shearing and extrusion action of the screw, and the raw material is extruded from the mold and then cooled to form a tube body (1); S2, move the male connector (2) to insert the main connector (21) into the main flow channel (11) of the tube body (1), so that the outer wall of the main connector (21) abuts against the inner wall of the main flow channel (11); when a portion of the main connector (21) is inserted into the main flow channel (11), according to the required insertion depth of the main connector (21), rotate the slide bar (216) out of the slide groove (211), rotate the slide bar (216) to adjust the position of the auxiliary connector (22) on the slide bar (216), rotate the connecting ring (214) to align the auxiliary connector (22) with the auxiliary flow channel (12), and then rotate the slide bar (216) into the slide groove (211), further insert the main connector (21) to drive the auxiliary connector (22) to be inserted into the auxiliary flow channel (12); S3, moving the female connector (3) so that the sleeve (31) is inserted into the main flow channel (11) at the end of the tube body (1) away from the male connector (2), and at the same time, the sleeve (31) drives the plug (32) to move and insert into the secondary flow channel (12) of the corresponding tube body (1); S4. When one end of the current tube body (1) needs to be connected to another tube body (1), the main joint (21) of the male joint (2) on the adjacent tube body (1) is inserted into the sleeve (31) of the female joint (3) on the current tube body (1), and the position of the connecting tube (332) on the outer wall of the sleeve (31) is adjusted at the same time. The telescopic tube (331) is extended or shortened correspondingly with the movement of the connecting tube (332); the main joint (21) on the adjacent tube body (1) moves to drive the corresponding secondary joint (22) to be inserted into the connecting tube (332) of the female joint (3) on the current tube body (1).

5. The production process according to claim 4, Features: S11, cooling and solidifying the melted plastic raw material, and then melting it again; S112, repeat the steps in S11 2-3 times, and inject the molten plastic into the extruder.

6. The production process according to claim 4, Features: S12, cooling the extruded formed tube body (1) with water mist; S121. Install a water mist concentration detection instrument at the water mist cooling area.

7. The production process according to claim 6, Features: S122. A negative pressure recovery device is provided at the water mist cooling location to recover heat from the water vapor generated by evaporation; S1221. A temperature detection device is provided at the water mist cooling location, and the negative pressure recovery device is closed after the temperature at the water mist cooling location is measured to be lower than a predetermined value.

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