Spiral hose with falling cut-off function

Abstract

The invention belongs to the technical field of spiral hoses, and provides a spiral hose with a falling cut-off function, which comprises a hose body, convex blocks with arc-shaped structures are arranged at the two ends of the hose body, a fixed flange and a clamping plate are arranged at the end part of the hose body, and the fixed flange and the clamping plate are positioned on the two sides of the convex blocks; the fixing flange and the clamping plate are fixedly connected with the protruding block, and a through hole is formed in the middle of the clamping plate. The technical problems that in the prior art, when flanges are butted, certain obstacles exist, and the butting speed is influenced are solved, when the two sets of hose bodies are butted, the position of the closing plate is adjusted according to the butting requirement, so that connecting pipes on the two sets of hose bodies are aligned, and the butting speed is improved. The two sets of connecting pipes are fixed through the connecting flanges, the fixing screws and the nuts, the bending angle of the hose body does not need to be changed, and the hose can be widely applied to the pipeline connecting operation scene.

Description

Technical Field

[0001] The invention belongs to the technical field of spiral hoses, and in particular relates to a spiral hose with a shedding and intercepting function. Background Art

[0002] Spiral hose is a flexible pipe with a specific structural design, widely used in various industrial and civilian fields. Its main features are its high flexibility and durability. It can withstand extreme temperature changes and resist corrosion from various chemicals. In recent years, plastic reinforced spiral hose has been commonly used at home and abroad. This spiral hose is made of two PVC materials with very different hardness. One of the harder PVC materials is made into a semi-circular spiral structure with a pitch of 5-12mm. The softer PVC material is plastic-coated on the outside of the high-hardness spiral structure and then plastic-coated into a tube. This type of hose has high pressure resistance and good elasticity. It is widely used in new energy vehicles, rail transportation, railways, machine tools, machinery manufacturing, air conditioning and refrigeration equipment and other fields.

[0003] Flanges are usually provided at both ends of the spiral hose for connecting two sets of spiral hoses. Since the spiral hose has a certain rigidity, its bending property is poor. During use, there are certain obstacles when docking the flanges due to the limitations of space and actual installation conditions, which affects the docking speed. In addition, forcibly bending the spiral hose for docking can easily cause damage to the spiral hose, reducing the service life of the spiral hose. Summary of the Invention

[0004] The purpose of the present invention is to provide a spiral hose with a detachable interception function, aiming to solve the technical problem in the prior art that there are certain obstacles when docking flanges, which affects the docking speed.

[0005] The present invention is achieved as follows: a spiral hose with a detachable and intercepting function includes a hose body, wherein both ends of the hose body are provided with arc-shaped protrusions, and the ends of the hose body are provided with fixed flanges and clamping plates, wherein the fixed flanges and clamping plates are located on both sides of the protrusions, the fixed flanges and clamping plates are fixedly connected to the protrusions, and a through hole is opened in the middle of the clamping plate;

[0006] A closing plate is provided on the clamping plate, and a connecting pipe is fixedly installed in the middle of the closing plate. When the side of the closing plate contacts the side wall of the fixed flange, the connecting pipe is located at the edge of the through hole on the clamping plate and is connected to the hose body. At the same time, the closing plate can completely cover the area where the through hole is located on the clamping plate. The connecting pipe passes through the closing plate and a connecting flange is fixedly installed on the end of the connecting pipe away from the closing plate. A coaxially arranged fixing plate is rotatably installed on the end surface of the fixed flange, and a plurality of sets of clamping screws for clamping the closing plate are provided on the fixing plate.

[0007] Further technical solution: the fixing flange and the clamping plate are both fitted with the side of the protrusion, a groove for the protrusion to enter is opened on the surface of the clamping plate close to the fixing flange, and the clamping plate and the fixing flange are fixedly connected by multiple sets of connecting screws.

[0008] Further technical solution: The surface of the clamping plate away from the fixed flange is provided with multiple groups of countersunk holes, and the countersunk holes are distributed in a circular array around the axis of the clamping plate. Connecting threaded holes are provided at positions corresponding to the countersunk holes on the fixed flange. The connecting screws are located in the countersunk holes and connected to the connecting threaded holes. The end face of the connecting screws away from the fixed flange does not extend out of the countersunk holes.

[0009] Further technical solution: multiple sets of fixing frames are fixedly installed on the fixing plate, the fixing plate is installed on the fixing flange through the fixing frames, multiple sets of mounting plates are fixedly installed on the fixing plate, the mounting plates are distributed in a circular array around the circumference of the fixing plate, and a slide is slidably installed on the mounting plate, the slide is distributed along the radial direction of the fixing plate and the clamping screw is threadedly installed on the slide, and the clamping screw is located at one end of the slide close to the connecting pipe.

[0010] Further technical solution: Guide plates are fixedly installed at both ends of the hose body, and the guide plates are composed of two groups of side walls of conical structures. The ends with smaller openings of the two groups of conical structures are fixedly connected, and the ends with larger openings of the conical structures are fixedly connected to the hose body. A closing cone is provided on the side wall of the guide plate away from the open end of the hose body, and a push rod is slidably installed in the connecting tube to push the closing cone to move.

[0011] Further technical solution: Multiple groups of support plates are fixedly installed on the side wall of the guide plate away from the open end of the hose body, and a sliding rod is slidably installed on the support plate. The sliding rod passes through the support plate and is fixedly connected to the closed cone. An elastic part arranged around the sliding rod is fixedly installed on the support plate, and one end of the elastic part away from the support plate is fixedly connected to the end of the sliding rod away from the closed cone.

[0012] Further technical solution: A support rod is fixedly installed on the surface of the closing cone close to the open end of the hose body, the support rod passes through the guide plate, and a grid plate is fixedly installed on the surface of the support rod away from the closing cone.

[0013] Further technical solution: a slide groove is provided in the connecting pipe, a movable plate is slidably installed in the slide groove, and a push rod is fixedly installed on the movable plate. When the push rod enters the hose body and moves, it contacts the grille plate. One group of push rods is provided with a guide rod at the end away from the grille plate, and the other group of push rods is provided with a guide groove used in conjunction with the guide rod at the end away from the grille plate.

[0014] Further technical solution: A limit frame is fixedly installed on the support plate, the limit frame is an L-shaped structure and the extension line of the slide rod passes through the side wall parallel to the limit frame and the support plate. After the two sets of hose bodies are docked, the push rod pushes the closing cone to move so that the slide rod contacts the limit frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When two sets of hose bodies are docked, turn the tightening screw so that it no longer exerts pressure on the closing plate. At this time, the closing plate can move freely against the closing plate. Adjust the position of the closing plate according to the docking needs so that the connecting pipes on the two sets of hose bodies are aligned. Fix the two sets of connecting pipes through the connecting flange, fixing screws and nuts. Thus, the position of the connecting pipe can be adjusted according to the real-time position of the two sets of hose bodies when connected. The two sets of hose bodies can be quickly docked and connected without changing the bending angle of the hose bodies, thus avoiding excessive bending of the hose bodies and ensuring the service life of the hose bodies.

[0017] 2. When the side of the closing plate contacts the side wall of the fixed flange, the connecting pipe is located at the edge of the through hole on the clamping plate and is connected to the hose body. At the same time, the closing plate can completely cover the area where the through hole is located on the clamping plate, thereby ensuring that the hose body can only be connected to the outside world through the connecting pipe, ensuring the sealing of the connection between the connecting pipe and the hose body while allowing the connecting pipe to move freely, thereby improving the flexibility of the device, facilitating the subsequent docking of the two sets of connecting pipes, and increasing the docking speed of the hose body.

[0018] 3. When the fixed flange is disconnected from the hose body during use, the hose body of this group will be separated from the fixed flange, and the push rod will no longer apply pressure to the grid plate, so that the closing cone will be reset and contacted with the guide plate under the action of the elastic member, thereby achieving closed retention at the end of the hose body, preventing continuous leakage of liquid to the outside. Since the closing cones on the two groups of hose bodies are pushed to a limited position by the two groups of push rods, when one side loses the force, the closing cone on the other group of hose bodies will also be reset and contacted with the guide plate under the action of the elastic member, thereby achieving closed retention at the end of the hose body, and the end of the hose body can be sealed in time when the hose body is disconnected, thereby avoiding continuous leakage of liquid from the hose body and improving the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the fixed flange in the present invention.

[0021] Figure 3 It is a structural schematic diagram of the closing plate in the present invention.

[0022] Figure 4 This is a schematic diagram of the exploded structure from a first perspective of the fixed flange connection in the present invention.

[0023] Figure 5This is a schematic diagram of the exploded structure from a second perspective of the fixed flange connection in the present invention.

[0024] Figure 6 It is a schematic cross-sectional structural diagram of the fixed flange in the present invention.

[0025] Figure 7 for Figure 6 A magnified schematic diagram of the A1 region in the middle.

[0026] Figure 8 for Figure 6 A magnified schematic diagram of the A2 region in the middle.

[0027] In the accompanying drawings: 1. Hose body; 2. Bump; 3. Fixed flange; 4. Clamping plate; 5. Countersunk hole; 6. Connecting screw; 7. Connecting threaded hole; 8. Closing plate; 9. Connecting pipe; 10. Connecting flange; 11. Fixed plate; 12. Fixed frame; 13. Mounting plate; 14. Slide plate; 15. Pressing screw; 16. Guide plate; 17. Support plate; 18. Slide rod; 19. Elastic member; 20. Limiting frame; 21. Closing cone; 22. Support rod; 23. Grille plate; 24. Slide groove; 25. Moving plate; 26. Push rod; 27. Guide rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0030] like Figures 1-8 The figure shows a spiral hose with a falling-off intercepting function provided by the present invention, comprising a hose body 1, both ends of the hose body 1 are provided with an arc-shaped protrusion 2, the end of the hose body 1 is provided with a fixing flange 3 and a clamping plate 4, the fixing flange 3 and the clamping plate 4 are located on both sides of the protrusion 2, the fixing flange 3 and the clamping plate 4 are fixedly connected to the protrusion 2, a through hole is provided in the middle of the clamping plate 4, the fixing flange 3 and the clamping plate 4 are both fitted with the side of the protrusion 2, the surface of the clamping plate 4 close to the fixing flange 3 is provided with a groove for the protrusion 2 to enter, the clamping plate 4 and the fixing flange 3 are fixedly connected by multiple groups of connecting screws 6, the surface of the clamping plate 4 away from the fixing flange 3 is provided with multiple groups of countersunk holes 5, the countersunk holes 5 are distributed in a circular array around the axis of the clamping plate 4, the fixing flange 3 is provided with a connecting threaded hole 7 at a position corresponding to the countersunk hole 5, and the connecting screw 6 does not extend out of the countersunk hole 5 away from the end surface of the fixing flange 3;

[0031] A closing plate 8 is provided on the clamping plate 4, and a connecting pipe 9 is fixedly installed in the middle of the closing plate 8. When the side of the closing plate 8 contacts the side wall of the fixed flange 3, the connecting pipe 9 is located at the edge of the through hole on the clamping plate 4 and is connected to the hose body 1. At the same time, the closing plate 8 can completely cover the area where the through hole on the clamping plate 4 is located. The connecting pipe 9 passes through the closing plate 8 and a connecting flange 10 is fixedly installed on the end of the connecting pipe 9 away from the closing plate 8. A coaxially arranged fixing plate 11 is rotatably installed on the end surface of the fixed flange 3, and a plurality of groups of clamping screws 15 for clamping the closing plate 8 are provided on the fixing plate 11.

[0032] In actual application of this embodiment, the fixing flange 3 is sleeved on the end of the hose body 1, and then the hose body 1 is flanging to produce a bulge 2, and then the clamping plate 4 is installed on the fixing flange 3, and the connecting screw 6 is inserted into the countersunk hole 5, and the connecting screw 6 is rotated to connect the connecting screw 6 with the connecting threaded hole 7. At this time, the clamping plate 4 can be fixed by multiple sets of connecting screws 6, and the bulge 2 is clamped by the clamping plate 4 and the fixing flange 3, so that the fixing flange 3, the clamping plate 4 and the hose body 1 are fixedly connected, and the clamping of the clamping plate 4 can ensure the stability and sealing of the connection between the end of the hose body 1 and the fixing flange 3. Then, the closing plate 8 is installed on the clamping plate 4, and the closing plate 8 is pressed and fixed on the clamping plate 4 by the tightening screw 15;

[0033] When the two sets of hose bodies 1 are subsequently docked, the compression screw 15 is rotated so that it no longer exerts pressure on the closing plate 8. At this time, the closing plate 8 can move freely against the clamping plate 4. The position of the closing plate 8 is adjusted according to the docking needs so that the connecting pipes 9 on the two sets of hose bodies 1 are aligned. The two sets of connecting pipes 9 are fixed by the connecting flange 10 and the fixing screws and nuts. Thus, the position of the connecting pipe 9 can be adjusted according to the real-time position of the two sets of hose bodies 1 when connected. The two sets of hose bodies 1 can be quickly docked and connected without changing the bending angle of the hose bodies 1, thereby avoiding excessive bending of the hose bodies 1 and ensuring the service life of the hose bodies 1.

[0034] After that, the fixing plate 11 is rotated according to the position of the closing plate 8, so that one group of slide plates 14 points to the connecting tube 9, and this group of slide plates 14 is distributed in the radial direction of the radius of the connecting tube 9. Then, the protruding length of the slide plates 14 is adjusted so that the positions where the multiple groups of clamping screws 15 contact the closing plate 8 are distributed in a circumferential array around the connecting tube 9. Then, the clamping screws 15 are rotated to press the closing plate 8 onto the clamping plate 4. Because when the side of the closing plate 8 contacts the side wall of the fixing flange 3, the connecting tube 9 is located at the edge of the through hole on the clamping plate 4 and is connected with the hose body 1. At the same time, the closing plate 8 can completely cover the area where the through hole on the clamping plate 4 is located, thereby ensuring that when the closing plate 8 moves to any position in the fixing flange 3, the hose body 1 can only be connected to the outside world through the connecting tube 9, ensuring the sealing connection between the connecting tube 9 and the hose body 1 while allowing the connecting tube 9 to move freely, thereby improving the flexibility of the device, facilitating the subsequent docking of the two groups of connecting tubes 9, and improving the docking speed of the hose body 1.

[0035] like Figures 1-8 As shown, a spiral hose with a detachable and intercepting function provided by the present invention, multiple sets of fixing frames 12 are fixedly installed on the fixing plate 11, and the fixing plate 11 is installed on the fixing flange 3 through the fixing frames 12. Multiple sets of mounting plates 13 are fixedly installed on the fixing plate 11, and the mounting plates 13 are distributed in a circular array around the circumference of the fixing plate 11. A slide plate 14 is slidably installed on the mounting plate 13, and the slide plate 14 is distributed along the radial direction of the fixing plate 11. The tightening screw 15 is threadedly installed on the slide plate 14, and the tightening screw 15 is located at one end of the slide plate 14 close to the connecting pipe 9.

[0036] Specifically, guide plates 16 are fixedly installed at both ends of the hose body 1. The guide plates 16 are composed of two sets of side walls of conical structures. The ends with smaller openings of the two sets of conical structures are fixedly connected, and the ends with larger openings of the conical structures are fixedly connected to the hose body 1. A closing cone 21 is provided on the side wall of the guide plate 16 away from the open end of the hose body 1, and a push rod 26 for pushing the closing cone 21 to move is slidably installed in the connecting tube 9.

[0037] Specifically, a plurality of support plates 17 are fixedly mounted on the side wall of the guide plate 16 away from the open end of the hose body 1, and a slide rod 18 is slidably mounted on the support plate 17. The slide rod 18 passes through the support plate 17 and is fixedly connected to the closed cone 21. An elastic member 19 arranged around the slide rod 18 is fixedly mounted on the support plate 17, and one end of the elastic member 19 away from the support plate 17 is fixedly connected to the end of the slide rod 18 away from the closed cone 21.

[0038] Specifically, a support rod 22 is fixedly mounted on the surface of the closing cone 21 close to the open end of the hose body 1 . The support rod 22 passes through the guide plate 16 , and a grid plate 23 is fixedly mounted on the surface of the support rod 22 away from the closing cone 21 .

[0039] Specifically, a slide groove 24 is provided in the connecting pipe 9, and a movable plate 25 is slidably installed in the slide groove 24. The push rod 26 is fixedly installed on the movable plate 25. When the push rod 26 enters the hose body 1 and moves, it contacts the grid plate 23. One group of push rods 26 is provided with a guide rod 27 at the end away from the grid plate 23, and the other group of push rods 26 is provided with a guide groove for use with the guide rod 27 at the end away from the grid plate 23.

[0040] Specifically, a limit frame 20 is fixedly installed on the support plate 17. The limit frame 20 is an L-shaped structure and the extension line of the slide rod 18 passes through the side wall of the limit frame 20 parallel to the support plate 17. After the two sets of hose bodies 1 are docked, the push rod 26 pushes the closing cone 21 to move so that the slide rod 18 contacts the limit frame 20.

[0041] When the present embodiment is actually used, in the initial state, the elastic member 19 is in a slightly stretched state, the closing cone 21 contacts and closes the guide plate 16, and at this time, the end of the push rod 26 moves to the outside of the connecting pipe 9 under the push of the grid plate 23, so that the push rod 26 can push the closing cone 21 to move when the connecting pipe 9 is in different positions through the grid plate 23. When the two sets of hose bodies 1 are docked, the push rod 26 is first pushed into the connecting pipe 9, so that the movable plate 25 passes over the limit screw on the connecting pipe 9, and then the limit screw is turned to move downward to restrict the movable plate 25. When the two sets of connecting pipes 9 are aligned, the limit screw on the movable plate 25 is released. At this time, under the action of the elastic member 19, the push rod 26 is reset, and then the guide rod 27 can enter the guide groove on the other set of push rods 26, thereby ensuring that the two sets of connecting pipes 9 are aligned and preventing the two sets of connecting pipes 9 from moving along the end face direction;

[0042] Then, the two sets of connecting pipes 9 are fixed by screws, nuts and connecting flanges 10. After the fixing is completed, the sliding rod 18 is pushed by the push rod 26 to contact the limit frame 20, so that the closing cone 21 is in a fixed state, preventing the closing cone 21 from contacting the guide plate 16 and closing the hose body 1 due to pressure when there is liquid flowing in the hose body 1, thereby ensuring the stability of the liquid flow in the hose body 1;

[0043] When the fixing flange 3 is disconnected from the hose body 1 during use, the group of hose bodies 1 will be separated from the fixing flange 3, and the push rod 26 will no longer apply pressure to the grid plate 23, so that the closing cone 21 is reset to contact with the guide plate 16 under the action of the elastic member 19, thereby achieving closed retention at the end of the hose body 1 and preventing continuous leakage of liquid to the outside. Since the closing cones 21 on the two groups of hose bodies 1 are pushed to a limited position by the two groups of push rods 26, when one side loses the force, the closing cone 21 on the other group of hose bodies 1 will also be reset to contact with the guide plate 16 under the action of the elastic member 19, thereby achieving closed retention at the end of the hose body 1, and can timely seal the end of the hose body 1 when the hose body 1 is disconnected, thereby preventing continuous leakage of liquid from the hose body 1 and improving the practicality of the equipment.

[0044] In one embodiment of the present invention, the elastic member 19 is a spring, and of course it can also be other elastic components such as elastic wires. The spring stretches to apply tension to the closing cone 21, so that when the fixed flange 3 is separated from the hose body 1, the closing cone 21 is reset to contact the guide plate 16, and the end of the hose body 1 can be closed in time, thereby avoiding continuous leakage of liquid in the hose body 1.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A spiral hose with a shedding and intercepting function, comprising a hose body (1), characterized in that: Both ends of the hose body (1) are provided with arc-shaped protrusions (2), and the ends of the hose body (1) are provided with fixed flanges (3) and clamping plates (4), the fixed flanges (3) and the clamping plates (4) are located on both sides of the protrusions (2), the fixed flanges (3) and the clamping plates (4) are fixedly connected to the protrusions (2), and a through hole is opened in the middle of the clamping plate (4); A closing plate (8) is provided on the clamping plate (4), and a connecting pipe (9) is fixedly installed in the middle of the closing plate (8). When the side of the closing plate (8) contacts the side wall of the fixing flange (3), the connecting pipe (9) is located at the edge of the through hole on the clamping plate (4) and is connected to the hose body (1). At the same time, the closing plate (8) can completely cover the area where the through hole on the clamping plate (4) is located. The connecting pipe (9) passes through the closing plate (8) and a connecting flange (10) is fixedly installed at one end of the connecting pipe (9) away from the closing plate (8). A coaxially arranged fixing plate (11) is rotatably installed on the end surface of the fixing flange (3), and a plurality of groups of clamping screws (15) for clamping the closing plate (8) are provided on the fixing plate (11).

2. A spiral hose with a falling-off and flow-cutting function according to claim 1, characterized in that: The fixing flange (3) and the clamping plate (4) are both fitted with the side surfaces of the protrusion (2); a groove for the protrusion (2) to enter is provided on the surface of the clamping plate (4) close to the fixing flange (3); the clamping plate (4) and the fixing flange (3) are fixedly connected by a plurality of sets of connecting screws (6).

3. The spiral hose with the function of shedding and intercepting flow according to claim 2, characterized in that: A plurality of countersunk holes (5) are provided on a surface of the clamping plate (4) away from the fixing flange (3), and the countersunk holes (5) are distributed in a circular array around the axis of the clamping plate (4). A connecting threaded hole (7) is provided at a position on the fixing flange (3) corresponding to the countersunk hole (5). The connecting screw (6) is located in the countersunk hole (5) and connected to the connecting threaded hole (7). The end surface of the connecting screw (6) away from the fixing flange (3) does not extend out of the countersunk hole (5).

4. The spiral hose with the function of shedding and intercepting flow according to claim 1, characterized in that: A plurality of sets of fixing frames (12) are fixedly mounted on the fixing plate (11), and the fixing plate (11) is mounted on the fixing flange (3) via the fixing frames (12). A plurality of sets of mounting plates (13) are fixedly mounted on the fixing plate (11), and the mounting plates (13) are distributed in a circular array around the circumference of the fixing plate (11). A slide plate (14) is slidably mounted on the mounting plate (13), and the slide plate (14) is distributed along the radial direction of the fixing plate (11) and is threadedly mounted on the slide plate (14) by means of the clamping screw (15). The clamping screw (15) is located at one end of the slide plate (14) close to the connecting pipe (9).

5. The spiral hose with the function of falling off and intercepting flow according to claim 4, characterized in that: Guide plates (16) are fixedly mounted at both ends of the hose body (1), the guide plates (16) being composed of two groups of side walls of conical structures, the ends of the two groups of conical structures with smaller openings are fixedly connected, and the ends of the conical structures with larger openings are fixedly connected to the hose body (1), a closing cone (21) is arranged on the side wall of the guide plate (16) away from the opening end of the hose body (1), and a push rod (26) for pushing the closing cone (21) to move is slidably mounted in the connecting pipe (9).

6. The spiral hose with the function of falling off and intercepting flow according to claim 5, characterized in that: A plurality of support plates (17) are fixedly mounted on the side wall of the guide plate (16) away from the open end of the hose body (1), a slide bar (18) is slidably mounted on the support plate (17), the slide bar (18) passes through the support plate (17) and the slide bar (18) is fixedly connected to the closed cone (21), an elastic member (19) arranged around the slide bar (18) is fixedly mounted on the support plate (17), and one end of the elastic member (19) away from the support plate (17) is fixedly connected to the end of the slide bar (18) away from the closed cone (21).

7. The spiral hose with the function of falling off and intercepting flow according to claim 6, characterized in that: A support rod (22) is fixedly mounted on the surface of the closing cone (21) close to the open end of the hose body (1), the support rod (22) passes through the guide plate (16) and a grid plate (23) is fixedly mounted on the surface of the support rod (22) away from the closing cone (21).

8. The spiral hose with the function of falling off and intercepting flow according to claim 7, characterized in that: The connecting pipe (9) is provided with a slide groove (24), a movable plate (25) is slidably installed in the slide groove (24), the push rod (26) is fixedly installed on the movable plate (25), and the push rod (26) contacts the grid plate (23) when entering the hose body (1) and moving. One group of the push rods (26) is provided with a guide rod (27) at the end away from the grid plate (23), and the other group of the push rods (26) is provided with a guide groove used in conjunction with the guide rod (27) at the end away from the grid plate (23).

9. The spiral hose with the function of falling off and intercepting flow according to claim 8, characterized in that: A limiting frame (20) is fixedly mounted on the support plate (17); the limiting frame (20) is an L-shaped structure and an extension line of the slide bar (18) passes through the side wall of the limiting frame (20) parallel to the support plate (17); after the two groups of the hose bodies (1) are docked, the push rod (26) pushes the closing cone (21) to move so that the slide bar (18) contacts the limiting frame (20).

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