Self-locking quick female head for conical end socket

Abstract

The utility model relates to the technical field of quick female heads, in particular to a self-locking quick female head for a conical end socket, which comprises a female head main body, a butt joint pipe, a threaded connection pipe and a positioning component, a mounting plate is arranged at the position, close to the positioning component, in the female head main body, and a sealing component is mounted at the upper end in the female head main body. A fixing component is arranged on the lower side of the sealing component, a rubber ring is arranged on the upper side of the butt joint pipe, and a guide-in pipe is arranged at the upper end of the female head body. The guide-in pipe is fixed inside the female head body through the fixing component, the conical head is positioned through the positioning component, the firmness of connection between the female head body and the guide-in pipe is improved, the connecting position of the conical head and the butt joint pipe is sealed through the rubber ring, and the sealing performance of the guide-in pipe and the upper end of the female head body is improved through the fixing component and the sealing component. The conical head is fixed through the fixing component, the fixing component is fixed through inflation of the sealing component, and fixing operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of quick female connectors, specifically a self-locking quick female connector for conical heads. Background Technique

[0002] Storage and transportation steel drums are widely used in the storage and transportation of liquid and solid substances in industries such as chemical engineering, petroleum, food, and medicine. Traditional storage and transportation steel drum heads are usually connected by welding, and this connection method has exposed many problems in actual use.

[0003] First of all, the welding connection operation is complex, time-consuming and laborious. The welding process requires high-skilled workers to operate, which not only increases the labor cost but also prolongs the production cycle. Especially in mass production, the welding process has become a bottleneck, restricting the improvement of production efficiency.

[0004] Secondly, stress concentration is likely to occur at the welding points, affecting the overall strength and durability of the steel drum. The heat-affected zone is inevitably generated during the welding process, resulting in a decline in material properties, and cracks and corrosion problems are likely to occur at the welding points. This situation is particularly obvious during long-term use or when bearing large external forces, directly affecting the safety and service life of the steel drum.

[0005] Thirdly, when the welded head is disassembled and assembled frequently, the weld is easily damaged, affecting the sealing effect. For storage and transportation steel drums that need to be disassembled and assembled frequently, the durability and sealing performance of the welded head cannot meet the requirements, and it is easy to cause leakage and pollution of the contents.

[0006] In addition, the welding process has high requirements for the environment and needs to be carried out in a specific workshop, increasing the production cost due to the requirements for the production environment. The fumes and harmful gases generated during the welding process also pose a threat to the health of workers, increasing the risk of occupational diseases.

[0007] However, the current quick female connectors on the market complete the quick connection between the conical head and the pipeline through the elasticity of the pipeline. The stability after connection is poor, and slippage is likely to occur during use. Air leakage is likely to occur at the connection, which is not conducive to the sealing effect of the connection. When fixing, operations such as heat ironing of the pipeline are required, which is not conducive to the convenience of the connection. Therefore, those skilled in the art provide a self-locking quick female connector for conical heads to solve the problems raised in the above background technique. Content of the Utility Model

[0008] The purpose of the utility model is to provide a self-locking quick female connector for conical heads to solve the problems raised in the above background technique.

[0009] To achieve the above object, the present utility model provides the following technical solutions: The conical head uses a self-locking quick female head, including a female head body, a docking pipe, a threaded connection pipe and a positioning member. The docking pipe is located at the lower end of the female head body. The threaded connection pipe is located at the lower side of the docking pipe. The positioning member is located at both sides inside the female head body. An installation plate is provided at a position inside the female head body near the positioning member. A sealing member is installed at the upper end inside the female head body. A fixing member is provided below the sealing member. A rubber ring is provided on the upper side of the docking pipe. An inlet pipe is provided at the upper end of the female head body. A conical head is provided at the lower end of the inlet pipe. A discharge pipe is provided at the lower end of the threaded connection pipe.

[0010] As a further scheme of the present utility model: The fixing member includes a first fixing ring. A second fixing ring is provided on one side of the first fixing ring. First rubber bodies are provided at the inner sides of the first fixing ring and the second fixing ring. Pulling plates are provided at the outer lower ends of the first fixing ring and the second fixing ring. A first fixing screw is provided inside the pulling plate. A spring is installed at a position above the pulling plate on the outer side of the first fixing screw. Chute grooves are provided at the front positions of the first fixing ring and the second fixing ring. A second fixing screw is provided inside the chute groove. Nuts are installed at both ends of the second fixing screw.

[0011] As a further scheme of the present utility model: The positioning member includes an adjusting screw. A rotating shaft is installed at one end of the adjusting screw. A pressing plate is provided at the inner side of the rotating shaft. A second rubber body is provided at the inner side of the pressing plate.

[0012] As a further scheme of the present utility model: The sealing member includes an installation ring. A sealing airbag is provided at the inner side of the installation ring. An inflation pipe is provided at one side of the sealing airbag. An exhaust valve is installed at one end of the inflation pipe. An inflation airbag is installed at a position near the exhaust valve on one side of the inflation pipe. A one-way valve is provided at one side of the inflation airbag.

[0013] As a further scheme of the present utility model: The lower end of the female head body is in through connection with the upper end of the docking pipe. The lower end of the docking pipe is in through connection with the upper end of the threaded connection pipe. The lower end of the fixing member is fixed at a position above the installation plate.

[0014] As a further scheme of the present utility model: The lower end of the threaded connection pipe is in through connection with the upper end of the discharge pipe. The fixing member is fixed at a position outside the inlet pipe. The lower side of the conical head is located above the rubber ring. The inlet pipe is in through connection with the upper end of the docking pipe through the conical head.

[0015] As a further solution of the utility model: the rear end of the first fixing ring rotates at the rear end position of the second fixing ring, the lower end of the first fixing screw rotates at the inner position of the mounting plate, the second fixing screw slides at the inner position of the chute, and the second fixing screw is fixed at the inner position of the chute through a nut.

[0016] As a further solution of the utility model: the outer end of the adjusting screw rotates at the outer position of the female head main body, and the inner end of the adjusting screw rotates at the outer position of the pressing plate through a rotating shaft.

[0017] As a further solution of the utility model: the output end of the one-way valve is communicated with the input end of the inflatable airbag, the output end of the inflatable airbag is communicated with the input end of the inflatable tube, the output end of the inflatable tube is communicated with the input end of the sealing airbag, and one end of the inflatable tube is communicated with the input end of the exhaust valve.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. In the utility model, the conical head uses a self-locking quick female head to fix the inlet pipe to the inside of the female head main body through a fixing member, and positions the conical head through a positioning member, which improves the firmness of the connection between the female head main body and the inlet pipe, improves the stability during use, avoids the slippage of the inlet pipe during use, and improves the safety and reliability of the fixation;

[0020] 2. The connection between the conical head and the docking pipe is sealed by a rubber ring, and the sealing performance between the inlet pipe and the upper end of the female head main body is improved through the fixing member and the sealing member. The double-sealing structure avoids the problem of air leakage at the connection, which is beneficial to the sealing effect of the connection;

[0021] 3. The conical head is fixed through the fixing member, the fixing member is fixed by inflating the sealing member, and the inlet pipe is fixed by the self-locking method of the fixing member. The fixing operation is convenient and fast, which is beneficial to the convenience of the connection.

[0022] 4. The outer shell of the female head is made by hydraulic stretching, which ensures the precise shape of the head and has no welds. The hydraulic stretching process forms the head in one step. The hydraulic stretching process simplifies the manufacturing process. The one-step forming does not require welding, the operation is simple and time-saving, there is no need for subsequent welding, which saves labor and time, improves production efficiency, and the weld-free design avoids the stress concentration problem at the welding point, improving the strength and durability of the head. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a conical head using a self-locking quick female head;

[0024] Figure 2 is a perspective view of a conical head using a self-locking quick female head;

[0025] Figure 3 It is an assembly drawing of the self-locking quick female head for use with a conical head.

[0026] Figure 4 It is a structural schematic diagram of the fixing member in the self-locking quick female head for use with a conical head.

[0027] Figure 5 It is a structural schematic diagram of the positioning member in the self-locking quick female head for use with a conical head.

[0028] Figure 6 It is a structural schematic diagram of the sealing member in the self-locking quick female head for use with a conical head.

[0029] In the figure: 1. Female head body; 2. Docking pipe; 3. Threaded connecting pipe; 4. Positioning member; 5. Mounting plate; 6. Fixing member; 7. Sealing member; 8. Rubber ring; 9. Inlet pipe; 10. Conical head; 11. Outlet pipe; 12. First fixing ring; 13. Second fixing ring; 14. First rubber body; 15. Pulling plate; 16. First fixing screw; 17. Spring; 18. Chute; 19. Second fixing screw; 20. Nut; 21. Adjusting screw; 22. Rotating shaft; 23. Pressing plate; 24. Second rubber body; 25. Mounting ring; 26. Sealing airbag; 27. Inflatable pipe; 28. Exhaust valve; 29. Inflatable airbag; 30. Check valve. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1 to 6, in the embodiment of the present utility model, the conical head uses a self-locking quick female head, which includes a female head body 1, a butt joint pipe 2, a threaded connection pipe 3 and a positioning member 4. The outer shell of the female head body 1 is made by hydraulic stretching to ensure the precise shape of the head and no weld seams. The hydraulic stretching process enables the head to be formed in one step without subsequent welding, saving labor and time, improving production efficiency. The weld-free design avoids the stress concentration problem at the welding points, improving the strength and durability of the head. The butt joint pipe 2 is located at the lower end of the female head body 1, the threaded connection pipe 3 is located below the butt joint pipe 2, and the positioning member 4 is located on both inner sides of the female head body 1. An installation plate 5 is provided at a position inside the female head body 1 near the positioning member 4. A sealing member 7 is installed at the upper end inside the female head body 1. A fixing member 6 is provided below the sealing member 7. A rubber ring 8 is provided above the butt joint pipe 2. An inlet pipe 9 is provided at the upper end of the female head body 1. A conical head 10 is provided at the lower end of the inlet pipe 9. An outlet pipe 11 is provided at the lower end of the threaded connection pipe 3. The lower end of the female head body 1 communicates with the upper end of the butt joint pipe 2. The lower end of the butt joint pipe 2 communicates with the upper end of the threaded connection pipe 3. The lower end of the fixing member 6 is fixed to the upper side of the installation plate 5. The lower end of the threaded connection pipe 3 communicates with the upper end of the outlet pipe 11. The fixing member 6 is fixed to the outer side of the inlet pipe 9. The lower side of the conical head 10 is located above the rubber ring 8. The inlet pipe 9 communicates with the upper end of the butt joint pipe 2 through the conical head 10. First, one end of the outlet pipe 11 is rotated to the outside of the threaded connection pipe 3 to complete the connection between the butt joint pipe 2 and the outlet pipe 11. The rear end of the first fixing ring 12 rotates at the rear end of the second fixing ring 13. The fixing member 6 is clamped to the outside of the inlet pipe 9. One end of the inlet pipe 9 is inserted into the inside of the female head body 1. The lower end of the fixing member 6 is fixed to the upper side of the installation plate 5. The fixing member 6 pushes the conical head 10 to press on the upper side of the rubber ring 8 to complete the connection between the conical head 10 and the butt joint pipe 2. Then, the sealing member 7 is inflated. The lower side of the sealing member 7 presses on the upper side of the fixing member 6, and the inner side is clamped to the outside of the inlet pipe 9 to complete the sealing and fix the fixing member 6. The positioning member 4 presses on the outside of the conical head 10 to calibrate the position of the conical head 10 to complete the installation of the self-locking quick female head of the conical head. Finally, when disassembly is required, the sealing member 7 discharges gas, the lower end of the fixing member 6 leaves the installation plate 5, the inlet pipe 9 is pulled out, and the fixing member 6 is removed to complete the disassembly.

[0032] In Figure 3 , 4In the middle: The fixing member 6 includes a first fixing ring 12. A second fixing ring 13 is arranged on one side of the first fixing ring 12. First rubber bodies 14 are arranged at the inner sides of the first fixing ring 12 and the second fixing ring 13. Pulling plates 15 are arranged at the lower outer sides of the first fixing ring 12 and the second fixing ring 13. A first fixing screw 16 is arranged inside the pulling plate 15. A spring 17 is installed at the outer side of the first fixing screw 16 and above the pulling plate 15. Chutes 18 are formed at the front ends of the first fixing ring 12 and the second fixing ring 13. A second fixing screw 19 is arranged inside the chute 18. Nuts 20 are installed at both ends of the second fixing screw 19. The rear end of the first fixing ring 12 rotates at the rear end position of the second fixing ring 13. The lower end of the first fixing screw 16 rotates inside the mounting plate 5. The second fixing screw 19 slides inside the chute 18 and is fixed inside the chute 18 through the nut 20. The rear end of the first fixing ring 12 rotates at the rear end of the second fixing ring 13, and the first fixing ring 12 and the second fixing ring 13 are clamped to the outside of the inlet pipe 9. The first rubber body 14 completes the sealing between the fixing member 6 and the inlet pipe 9. The second fixing screw 19 slides into the inside of the chute 18 and is fixed to the inside of the chute 18 through the nut 20 to complete the installation of the fixing member 6. When disassembly is required, loosen the nut 20, take out the second fixing screw 19 inside the chute 18, and open the first fixing ring 12 and the second fixing ring 13.

[0033] In Figure 3 、 5 In the middle: The positioning member 4 includes an adjusting screw 21. A rotating shaft 22 is installed at one end of the adjusting screw 21. A pressing plate 23 is arranged at the inner side of the rotating shaft 22. A second rubber body 24 is arranged at the inner side of the pressing plate 23. The outer end of the adjusting screw 21 rotates at the outer side of the female head body 1. The inner end of the adjusting screw 21 rotates at the outer side of the pressing plate 23 through the rotating shaft 22. The outer end of the adjusting screw 21 rotates at the outer side of the female head body 1, and the inner end of the adjusting screw 21 rotates at the outer side of the pressing plate 23 through the rotating shaft 22 to press the second rubber body 24 to the outside of the tapered head 10 to calibrate the position of the tapered head 10.

[0034] In Figure 3 、 6In the Chinese text: The sealing member 7 includes a mounting ring 25. Inside the mounting ring 25, there is a sealing airbag 26. On one side of the sealing airbag 26, there is an inflation tube 27. At one end of the inflation tube 27, there is an exhaust valve 28. Near the exhaust valve 28 on one side of the inflation tube 27, there is an inflation airbag 29. On one side of the inflation airbag 29, there is a one-way valve 30. The output end of the one-way valve 30 communicates with the input end of the inflation airbag 29. The output end of the inflation airbag 29 communicates with the input end of the inflation tube 27. The output end of the inflation tube 27 communicates with the input end of the sealing airbag 26. One end of the inflation tube 27 communicates with the input end of the exhaust valve 28. Press the inflation airbag 29 to draw external air through the one-way valve 30, and introduce the gas into the inside of the sealing airbag 26 through the inflation tube 27. The sealing airbag 26 expands and presses the lower side against the upper side of the fixing member 6, and the inner side is clamped to the outer side of the inlet pipe 9 to complete the sealing and fix the fixing member 6. When disassembly is required, open the exhaust valve 28, and the gas inside the sealing airbag 26 is discharged through the inflation tube 27 and the exhaust valve 28, and the sealing airbag 26 shrinks.

[0035] It should be noted that: The method for the outer shell of the female head body 1 is to position the pre-treated metal sheet on the workbench of the hydraulic stretching machine by hydraulic stretching forming, and fix it through the clamping device to ensure that the material does not move during the forming process. Start the hydraulic stretching equipment, and stretch into a ring-shaped reinforcing line and a longitudinal rib structure on the outer wall of the barrel by controlling the hydraulic pressure and speed. Set the initial stretching pressure and speed according to the steel plate thickness and forming requirements. The pressure is generally in the range of 50 to 200 MPa, and the stretching speed is controlled at 0.1 to 10 mm / s. During the stretching process, monitor the pressure, speed, and deformation amount in real time to ensure that the shapes of the formed reinforcing line and ribs are regular and the dimensions are accurate.

[0036] The working principle of the utility model is as follows: First, turn one end of the outlet pipe 11 to the outside of the threaded connection pipe 3 to complete the connection between the docking pipe 2 and the outlet pipe 11. The rear end of the first fixing ring 12 rotates at the rear end of the second fixing ring 13, and the first fixing ring 12 and the second fixing ring 13 are clamped to the outside of the inlet pipe 9. The first rubber body 14 completes the sealing between the fixing member 6 and the inlet pipe 9. The second fixing screw 19 slides into the inside of the chute 18, and the second fixing screw 19 is fixed to the inside of the chute 18 through the nut 20 to complete the installation of the fixing member 6. One end of the inlet pipe 9 is inserted into the inside of the female head main body 1. The lower end of the first fixing screw 16 is turned into the inside of the mounting plate 5. The spring 17 rebounds and the pull plate 15 slides on the outside of the first fixing screw 16. The fixing member 6 pushes the tapered head 10 to press on the upper side of the rubber ring 8 to complete the connection between the tapered head 10 and the docking pipe 2. Then, press the inflation airbag 29 to extract external air through the one-way valve 30, and introduce the gas into the inside of the sealing airbag 26 through the inflation pipe 27. The sealing airbag 26 expands and the lower side presses on the upper side of the fixing member 6, and the inner side is clamped to the outside of the inlet pipe 9 to complete the sealing and fix the fixing member 6. The outer end of the adjusting screw 21 rotates on the outside of the female head main body 1, and the inner end of the adjusting screw 21 rotates on the outside of the pressing plate 23 through the rotating shaft 22 to press the second rubber body 24 on the outside of the tapered head 10 to calibrate the position of the tapered head 10, and complete the installation of the tapered head using the self-locking quick female head. Finally, when disassembly is required, open the exhaust valve 28, and the gas inside the sealing airbag 26 is discharged through the inflation pipe 27 and the exhaust valve 28. The sealing airbag 26 shrinks, the lower end of the first fixing screw 16 is turned out of the mounting plate 5, the inlet pipe 9 is pulled out, the nut 20 is loosened, and the second fixing screw 19 inside the chute 18 is taken out. Open the first fixing ring 12 and the second fixing ring 13 to complete the disassembly. First, turn one end of the outlet pipe 11 to the outside of the threaded connection pipe 3 to complete the connection between the docking pipe 2 and the outlet pipe 11. The rear end of the first fixing ring 12 rotates at the rear end of the second fixing ring 13, and the first fixing ring 12 and the second fixing ring 13 are clamped to the outside of the inlet pipe 9. The first rubber body 14 completes the sealing between the fixing member 6 and the inlet pipe 9. The second fixing screw 19 slides into the inside of the chute 18, and the second fixing screw 19 is fixed to the inside of the chute 18 through the nut 20 to complete the installation of the fixing member 6. One end of the inlet pipe 9 is inserted into the inside of the female head main body 1. The lower end of the first fixing screw 16 is turned into the inside of the mounting plate 5. The spring 17 rebounds and the pull plate 15 slides on the outside of the first fixing screw 16. The fixing member 6 pushes the tapered head 10 to press on the upper side of the rubber ring 8 to complete the connection between the tapered head 10 and the docking pipe 2. Then, press the inflation airbag 29 to extract external air through the one-way valve 30, and introduce the gas into the inside of the sealing airbag 26 through the inflation pipe 27. The sealing airbag 26 expands and the lower side presses on the upper side of the fixing member 6, and the inner side is clamped to the outside of the inlet pipe 9 to complete the sealing and fix the fixing member 6. The outer end of the adjusting screw 21 rotates on the outside of the female head main body 1,The inner end of the adjusting screw rod 21 rotates outside the pressing plate 23 through the rotating shaft 22, presses the second rubber body 24 to the outside of the conical head 10, calibrates the position of the conical head 10, and completes the installation of the self-locking quick male head for the conical head. Finally, when it needs to be disassembled, open the exhaust valve 28, and the gas inside the sealing airbag 26 is discharged through the air charging pipe 27 and the exhaust valve 28. The sealing airbag 26 shrinks. The lower end of the first fixing screw rod 16 rotates out of the mounting plate 5, the guiding pipe 9 is pulled out, the nut 20 is loosened, the second fixing screw rod 19 inside the sliding groove 18 is taken out, and the first fixing ring 12 and the second fixing ring 13 are opened to complete the disassembly.

[0037] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0038] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The conical head uses a self-locking quick female head, comprising a female head body (1), a butt pipe (2), a threaded connection pipe (3) and a positioning member (4), wherein the butt pipe (2) is located at the lower end of the female head body (1), the threaded connection pipe (3) is located at the lower side of the butt pipe (2), and the positioning member (4) is located at both sides of the inside of the female head body (1), characterized in that: A mounting plate (5) is provided inside the female head body (1) at a position adjacent to the positioning member (4); a sealing member (7) is installed at the upper end of the female head body (1); a fixing member (6) is provided on the lower side of the sealing member (7); a rubber ring (8) is provided on the upper side of the butt joint (2); an inlet pipe (9) is provided at the upper end of the female head body (1); a conical head (10) is provided at the lower end of the inlet pipe (9); and an outlet pipe (11) is provided at the lower end of the threaded connection pipe (3).

2. The conical head according to claim 1 uses a self-locking quick female head, characterized in that: The fixing member (6) comprises a first fixing ring (12), a second fixing ring (13) is arranged on one side of the first fixing ring (12), a first rubber body (14) is arranged at the inner side of the first fixing ring (12) and the second fixing ring (13), a pull plate (15) is arranged at the lower end of the outer side of the first fixing ring (12) and the second fixing ring (13), a first fixing screw (16) is arranged inside the pull plate (15), a spring (17) is installed on the outer side of the first fixing screw (16) at the upper side of the pull plate (15), a sliding groove (18) is opened at the front end of the first fixing ring (12) and the second fixing ring (13), a second fixing screw (19) is arranged inside the sliding groove (18), and nuts (20) are installed at both ends of the second fixing screw (19).

3. The conical head according to claim 1 uses a self-locking quick female head, characterized in that: The positioning member (4) comprises an adjusting screw (21), a rotating shaft (22) is installed at one end of the adjusting screw (21), a pressing plate (23) is arranged at the inner side of the rotating shaft (22), and a second rubber body (24) is arranged on the inner side of the pressing plate (23).

4. The conical head according to claim 1 uses a self-locking quick female head, characterized in that: The sealing component (7) comprises a mounting ring (25), a sealing airbag (26) is arranged on the inner side of the mounting ring (25), an inflation tube (27) is arranged on one side of the sealing airbag (26), an exhaust valve (28) is installed on one end of the inflation tube (27), an inflation airbag (29) is installed on one side of the inflation tube (27) at a position adjacent to the exhaust valve (28), and a one-way valve (30) is arranged on one side of the inflation airbag (29).

5. The conical head according to claim 1 uses a self-locking quick female head, characterized in that: The lower end of the female head body (1) is connected to the upper end of the butt joint tube (2), the lower end of the butt joint tube (2) is connected to the upper end of the threaded connection tube (3), and the lower end of the fixing member (6) is fixed to the upper side of the mounting plate (5).

6. The conical head according to claim 1 uses a self-locking quick female head, characterized in that: The lower end of the threaded connection pipe (3) is connected to the upper end of the outlet pipe (11), the fixing member (6) is fixed at the outer side of the introduction pipe (9), the lower side of the conical head (10) is located at the upper side of the rubber ring (8), and the introduction pipe (9) is connected to the upper end of the butt pipe (2) through the conical head (10).

7. The conical head according to claim 2 uses a self-locking quick female head, characterized in that: The rear end of the first fixing ring (12) rotates to the rear end position of the second fixing ring (13), the lower end of the first fixing screw (16) rotates to the internal position of the mounting plate (5), the second fixing screw (19) slides to the internal position of the slide groove (18), and the second fixing screw (19) is fixed to the internal position of the slide groove (18) by a nut (20).

8. The conical head according to claim 3 uses a self-locking quick female head, characterized in that: The outer end of the adjusting screw (21) rotates to the outer position of the female head body (1), and the inner end of the adjusting screw (21) rotates to the outer position of the pressure plate (23) through the rotating shaft (22).

9. The conical head according to claim 4 uses a self-locking quick female connector, characterized in that: The output end of the one-way valve (30) is connected to the input end of the inflatable airbag (29), the output end of the inflatable airbag (29) is connected to the input end of the inflatable tube (27), the output end of the inflatable tube (27) is connected to the input end of the sealing airbag (26), and one end of the inflatable tube (27) is connected to the input end of the exhaust valve (28).

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