A hose structure on a swimming pool cleaner

Abstract

A hose structure on a swimming pool cleaner comprises a swimming pool suction head body, a check valve and a suction hose, wherein a connecting pipe is fixedly connected to the top middle of the swimming pool suction head body, a connecting end 1 is provided at the bottom of the check valve, and the connecting end 1 is detachably connected to the connecting pipe, a connecting end 2 is provided at the top of the check valve, a connecting sleeve is fixedly installed at the bottom of the suction hose, and the bottom end of the connecting sleeve is sleeved on the outside of the connecting end 2, a connecting flange is fixedly connected to the outer wall of the middle part of the check valve, a connecting assembly is provided above the connecting flange, the connecting sleeve is installed on the connecting end 2 of the check valve through the connecting assembly, an anti-detachment assembly is provided at the bottom of the connecting end 1, and the connecting end 1 is prevented from detaching from the connecting pipe through the anti-detachment assembly. The present invention facilitates quick installation and disassembly of the suction hose by providing the connecting assembly, improves installation efficiency, and is more convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of swimming pool cleaners, and more particularly to a hose structure on a swimming pool cleaner. Background Art

[0002] A swimming pool cleaner is an appliance used to clean stains on the bottom of a swimming pool. There are many types of existing swimming pool cleaners, among which a swimming pool suction machine has a simple structure and is easy to operate and is suitable for small swimming pools. The existing swimming pool suction machine is mainly composed of a water pump, a suction head, a check valve, a telescopic rod, a suction hose, a cable, a drainage hose, a water inlet and drainage pipe fitting and other structures. During installation and assembly, the check valve is usually first fixedly installed on the suction head, and then the suction hose is installed on the top of the check valve. In the prior art, the suction hose and the check valve are usually connected by plug-in or threaded connection. When the plug-in method is used, during the working process, the suction head may drag the suction hose during the movement of the pool bottom, which may cause the suction hose to fall off, thereby affecting the suction work. In addition, the threaded connection method is used for connection, the assembly speed is slow, and it is not convenient to disassemble. Therefore, the present application provides a hose structure on a swimming pool cleaner. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a hose structure on a swimming pool cleaner, which can solve the problem that in the prior art, the suction head may drag the suction hose when moving on the bottom of the pool during operation, which may cause the suction hose to fall off, thereby affecting the suction work. The threaded connection method is used for connection, the assembly speed is slow, and it is not convenient to disassemble. Therefore, the present application provides a hose structure on a swimming pool cleaner.

[0004] To solve the above technical problems, according to one aspect of the present invention, more specifically, a hose structure on a swimming pool cleaner comprises a swimming pool suction head body, a check valve and a suction hose, wherein a connecting pipe is fixedly connected to the top middle of the swimming pool suction head body, a connecting end 1 is arranged at the bottom of the check valve, and the connecting end 1 is detachably connected to the connecting pipe, a connecting end 2 is arranged at the top of the check valve, a connecting sleeve is fixedly installed at the bottom of the suction hose, and the bottom end of the connecting sleeve is sleeved on the outside of the connecting end 2, a connecting flange is fixedly connected to the outer wall of the middle part of the check valve, a connecting assembly is arranged above the connecting flange, the connecting sleeve is installed on the connecting end 2 of the check valve through the connecting assembly, an anti-detachment assembly is arranged at the bottom of the connecting end 1, and the anti-detachment assembly prevents the connecting end 1 from detaching from the connecting pipe.

[0005] Furthermore, the connecting assembly includes a bottom plate, and the bottom plate is sleeved on the outer sides of the second connecting end of the check valve through a through hole arranged in the middle, and vertical rods are symmetrically fixedly connected to the top of both sides of the bottom plate, and an inner cavity is arranged inside the vertical rod, and a movable plate is slidably installed on the side of the inner cavity close to the check valve, and a plurality of groups of limit blocks are fixedly connected at equal intervals on the side wall of the movable plate on the side away from the check valve, and a plurality of groups of through holes are provided on the side wall of the vertical rod on the side away from the check valve, and the through holes correspond to the limit blocks one by one, and the end of the limit block passes through the through hole, and the top of the end of the limit block protruding from the through hole is arranged in an inclined shape, and a spring is fixedly installed on the upper middle part of the bottom plate The spring three sleeves are arranged on the outside of the second connecting end, and a movable ring is fixedly installed on the top of the spring three. The movable ring is slidably sleeved on the outside of the second connecting end. The movable ring is fixedly connected with a sleeve rod on the side close to the vertical rod. A through groove one is opened on the side of the vertical rod close to the check valve. The sleeve rod passes through the through groove one and enters the inner cavity. A sliding cavity is arranged inside the end of the sleeve rod, and a push rod is slidably installed in the sliding cavity. The push rod abuts against the inner wall of the movable plate. A spring two for resetting the push rod is fixedly installed inside the sliding cavity. A limiting plate is fixedly connected to the outer side wall of the bottom of the connecting sleeve. Limiting holes are symmetrically opened at both ends of the limiting plate, and the limiting holes are adapted to the vertical rod.

[0006] Furthermore, the anti-detachment component includes a limiting ring fixedly connected to the outer side of the bottom of the connecting end, the limiting ring is provided with an annular movable cavity, the front end of the limiting ring is provided with a through groove three, and a limiting strip with two ends that are not closed is slidably installed inside the movable cavity, and the left and right sides of the limiting ring are symmetrically provided with up and down through-going notches two, and the limiting strip is provided with a notch one at the side of the notch two, and the notch one and the notch two (810) are adapted, and a limiting buckle is symmetrically fixedly connected in the middle of the top of the swimming pool suction head body and located on both sides of the connecting pipe, and the limiting buckle corresponds to the notch two, one end of the limiting strip is provided in the middle position of the through groove three, and a shift block is fixedly connected to the outer side wall of the end of the limiting strip, and the shift block passes through the through groove three, and a baffle is fixedly connected inside the movable cavity and inside one side end of the through groove three, and a spring four is fixedly connected between the side wall of the baffle and the end side wall of the limiting strip.

[0007] Furthermore, the upper and lower ends of the movable plate close to the check valve are respectively fixedly connected with springs 1, and the end of the spring 1 away from the movable plate is fixedly connected to the inner wall of the inner cavity.

[0008] Furthermore, a second through groove is provided at the bottom of the side of the vertical rod away from the check valve, and an arc plate is fixedly connected to the bottom of the movable plate, and the lower end of the arc plate passes through the second through groove and extends to the outside.

[0009] Furthermore, the bottoms of both ends of the base plate are respectively fixedly connected with fixing bolts, the fixing bolts pass through the mounting holes opened on the connecting flange, and the lower ends of the fixing bolts are threadedly connected with nuts.

[0010] Furthermore, the springs are provided in four groups and are symmetrically arranged on both sides of the inner cavity.

[0011] Furthermore, the inner cavity is configured to be in a cubic shape, and the side edges of the movable plate are in contact with the inner wall of the inner cavity.

[0012] Furthermore, a roller is rotatably mounted in the middle of one end of the push rod adjacent to the movable plate.

[0013] The beneficial effects of the hose structure on a swimming pool cleaner of the present invention are:

[0014] 1. By setting up the connecting assembly, it is convenient to stably install the connecting sleeve on the connecting end 2 of the check valve, so as to facilitate the installation of the sewage suction hose. During installation, hold the connecting sleeve at the end of the sewage suction hose and insert the connecting sleeve from the top of the connecting end 2, and align the limiting hole on the limiting plate with the vertical rod. As the connecting sleeve moves downward, it will contact the movable ring and synchronously push the movable ring to move downward along the connecting end 2. At the same time, the limiting plate moves downward along the vertical rod, and the limiting plate contacts the inclined edge at the top of the limiting block, forcing the limiting block to move toward the inner cavity. The second spring is compressed and the limit plate is moved back to the bottom of the swimming pool, and the limit block is reset under the rebound effect of the second spring, thereby blocking the top of the limit plate. This can limit the backward movement of the limit plate, so that the connecting sleeve can be stably installed on the second connecting end, which is convenient for quickly installing the connecting sleeve and the sewage suction hose in the device. At the same time, when the swimming pool sewage suction head body is placed on the bottom of the swimming pool and moved, the connecting sleeve will not fall off the check valve due to dragging.

[0015] 2. By setting spring 1, spring 1 is in an elongated state at the beginning. When the connecting sleeve needs to be removed from the connecting end 2, the movable ring is pressed downward, and the movable ring compresses spring 3 downward, and at the same time drives the sleeve rod and the push rod to move downward until the push rod moves to the lower position of the movable plate. At this time, the push rod no longer presses against the movable plate. Under the pulling action of spring 1, the movable plate slides toward the middle position, thereby driving the limit block to retract into the through hole. At this time, the limit block no longer blocks the top of the limit plate, so that the limit plate, the connecting sleeve and the sewage suction hose can be pulled out upward, which is convenient for quick disassembly of the sewage suction hose;

[0016] 3. By setting the arc plate, when the limit plate is separated from the vertical rod, the movable ring is released, and the movable ring is pushed upward to reset under the rebound action of the spring 3, and the movable ring drives the sleeve rod and the push rod to move upward synchronously, and the push rod abuts against the surface of the arc plate and can push the arc plate and the movable plate to move away from the check valve, so that the movable plate and the limit block can return to the initial position, which is convenient for the next use;

[0017] 4. By setting fixing bolts and nuts, it is convenient to install the connection assembly on the check valve and to disassemble it. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a structural schematic diagram of a hose structure on a swimming pool cleaner of the present invention;

[0020] Figure 2 A partial cross-sectional view of a hose structure on a swimming pool cleaner of the present invention;

[0021] Figure 3 It is an enlarged schematic diagram of the structure at A of a hose structure on a swimming pool cleaner of the present invention;

[0022] Figure 4 A top cross-sectional view of an anti-detachment component of a hose structure on a swimming pool cleaner of the present invention;

[0023] Figure 5 It is an external schematic diagram of a connecting component and an anti-detachment component of a hose structure on a swimming pool cleaner of the present invention;

[0024] Figure 6 The present invention is a top view of the inner structure of the inner cavity of a vertical rod of a hose structure on a swimming pool cleaner.

[0025] In the figure: 1. swimming pool suction head body; 2. connecting pipe; 3. check valve; 31. connecting end 1; 32. connecting end 2; 4. connecting flange; 5. connecting assembly; 51. bottom plate; 52. fixing bolt; 53. nut; 54. mounting hole; 55. vertical rod; 56. inner cavity; 57. through groove 1; 58. movable plate; 59. through hole; 510. limit block; 511. spring 1; 512. top rod; 513. sleeve rod; 514. roller; 515. Spring 2; 516. Movable ring; 517. Through slot 2; 518. Arc plate; 519. Spring 3; 520. Sliding cavity; 521. Limit plate; 522. Limit hole; 6. Connecting sleeve; 7. Suction hose; 8. Anti-slip assembly; 81. Limit ring; 82. Movable cavity; 83. Limit strip; 84. Notch 1; 85. Limit buckle; 86. Baffle; 87. Spring 4; 88. Dial block; 89. Through slot 3; 810. Notch 2. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0027] According to one aspect of the present invention, a hose structure on a swimming pool cleaner is provided, comprising a swimming pool suction head body 1, a check valve 3 and a suction hose 7, a connecting pipe 2 is fixedly connected to the top middle of the swimming pool suction head body 1, a connecting end 1 31 is provided at the bottom of the check valve 3, the connecting end 1 31 is detachably connected to the connecting pipe 2, a connecting end 2 32 is provided at the top of the check valve 3, a connecting sleeve 6 is fixedly installed at the bottom of the suction hose 7, the bottom end of the connecting sleeve 6 is sleeved on the outside of the connecting end 2 32, a connecting flange 4 is fixedly connected to the outer wall of the middle part of the check valve 3, a connecting assembly 5 is provided above the connecting flange 4, the connecting sleeve 6 is installed on the connecting end 2 32 of the check valve 3 through the connecting assembly 5, and an anti-detachment assembly 8 is provided at the bottom of the connecting end 1 31, and the anti-detachment assembly 8 prevents the connecting end 1 31 from detaching from the connecting pipe 2.

[0028] In this embodiment, the connecting component 5 includes a bottom plate 51, and the bottom plate 51 is sleeved on the outer side of the connecting end 32 of the check valve 3 through a through hole set in the middle. Vertical rods 55 are symmetrically fixedly connected to the top of both sides of the bottom plate 51. An inner cavity 56 is set inside the vertical rod 55. A movable plate 58 is slidably installed on the side of the inner cavity 56 close to the check valve 3. A plurality of groups of limit blocks 510 are fixedly connected at equal intervals on the side wall of the movable plate 58 away from the check valve 3. A plurality of groups of through holes 59 are provided on the side wall of the vertical rod 55 away from the check valve 3. The through holes 59 correspond to the limit blocks 510 one by one. The end of the limit block 510 passes through the through hole 59, and the top of the end of the limit block 510 protruding from the through hole 59 is set to an inclined shape. A spring 3 519 is fixedly installed on the upper middle part of 51, and the spring 3 519 is sleeved on the outside of the connecting end 2 32. A movable ring 516 is fixedly installed on the top of the spring 3 519, and the movable ring 516 is slidably sleeved on the outside of the connecting end 2 32. The movable ring 516 is fixedly connected with a sleeve rod 513 on the side close to the vertical rod 55. A through groove 1 57 is provided on the side of the vertical rod 55 close to the check valve 3. The sleeve rod 513 penetrates the through groove 1 57 and enters the inner cavity 56. A sliding cavity 520 is provided inside the end of the sleeve rod 513, and a push rod 512 is slidably installed in the sliding cavity 520. The push rod 512 abuts against the inner wall of the movable plate 58. A spring 2 515 is fixedly installed inside the sliding cavity 520 to reset the push rod 512. The limiting plate 521 is fixedly connected to the bottom outer wall of 6, and the limiting holes 522 are symmetrically provided at both ends of the limiting plate 521, and the limiting holes 522 are adapted to the vertical rod 55. When working, when the sewage suction hose 7 is installed to the connecting end 32 of the check valve 3, the connecting sleeve 6 at the end of the sewage suction hose 7 is held, and the connecting sleeve 6 is inserted from the top of the connecting end 32, and the limiting hole 522 on the limiting plate 521 is aligned with the vertical rod 55. As the connecting sleeve 6 moves downward continuously, it will contact the movable ring 516 and synchronously push the movable ring 516 to move downward along the connecting end 32. At the same time, the limiting plate 521 moves downward along the vertical rod 55, and the limiting plate 521 contacts the inclined edge at the top of the limiting block 510, pressing the limiting The positioning block 510 moves toward the inner cavity 56, and then squeezes the push rod 512 through the movable plate 58, so that the push rod 512 moves toward the inside of the sliding cavity 520, and the second spring 515 is compressed. After the limit plate 521 passes the limit block 510, the limit block 510 is reset under the rebound action of the second spring 515, thereby blocking the upper part of the limit plate 521, so that the limit plate 521 can be limited from moving back. In this way, the connecting sleeve 6 can be stably installed on the second connecting end 32, so that the connecting sleeve 6 and the sewage suction hose 7 can be quickly installed in the device, and at the same time, when the swimming pool sewage suction head body 1 is placed on the bottom of the swimming pool and moved, the connecting sleeve 6 will not fall off the check valve 3 due to dragging.

[0029] In this embodiment, the anti-slip assembly 8 includes a limiting ring 81 fixedly connected to the outer side of the bottom of the connecting end 31, the limiting ring 81 is provided with an annular movable cavity 82, and a through groove 3 89 is provided at the front end of the limiting ring 81. A limiting strip 83 with two ends that are not closed is slidably installed inside the movable cavity 82. The limiting ring 81 is symmetrically provided with a notch 2 810 that passes through from top to bottom on the left and right sides. A notch 1 84 is provided on the limiting strip 83 at the side of the notch 2 810, and the notch 1 84 is adapted to the notch 2 810. A limiting buckle 85 is symmetrically fixedly connected in the middle of the top of the swimming pool suction head body 1 and located on both sides of the connecting pipe 2, and the limiting buckle 85 corresponds to the notch 2 810. One end of the limiting strip 83 is set in the middle position of the through groove 3 89, and a shift block 88 is fixedly connected to the outer side wall of the end of the limiting strip 83, and the shift block 88 passes through the through groove 3 89. A baffle 86 is fixedly connected inside the movable cavity 82 and at one end of the through groove 3 89. A spring four 87 is fixedly connected between the side wall of 86 and the end side wall of the limit strip 83. During operation, when the check valve 3 is installed in the connecting pipe 2, the shift block 88 is first shifted, and the shift block 88 drives the limit strip 83 to move in the direction of the spring four 87. The spring four 87 is compressed. When the limit strip 83 slides, the position of the notch 84 changes accordingly, so that the notch 84 moves to align with the notch 2 810. At this time, the connecting end 31 at the bottom of the check valve 3 can be vertically inserted from the top of the connecting pipe 2, and the limiting buckle 85 passes through the notch 2 810. When the connecting end 31 moves to the bottom of the middle connecting pipe 2, the shift block 88 is released. Under the rebound action of the spring four 87, the limit strip 83 is pushed to reset, so that the notch 84 and the notch 2 810 can be misaligned. At this time, the top of the limiting buckle 85 can be clamped on the top of the limiting strip 83, thereby preventing the connecting end 31 from moving upward, thereby effectively preventing the check valve 3 from detaching from the connecting pipe 2.

[0030] When the locking cam 516 is in a state of being pulled out of the locking cam 518, the locking cam 518 is in a state of being pulled out of the locking cam 518.

[0031] In this embodiment, a through groove 2 517 is provided at the bottom of the side of the vertical rod 55 away from the check valve 3, and an arc plate 518 is fixedly connected to the bottom of the movable plate 58. The lower end of the arc plate 518 passes through the through groove 2 517 and extends to the outside. During operation, when the limit plate 521 is separated from the vertical rod 55, the movable ring 516 is released, and the movable ring 516 is pushed upward to reset under the rebound action of the spring three 519. The movable ring 516 drives the sleeve rod 513 and the push rod 512 to move upward synchronously. The push rod 512 abuts against the surface of the arc plate 518 and can push the arc plate 518 and the movable plate 58 to move in the direction away from the check valve 3, so that the movable plate 58 and the limit block 510 can return to the initial position, which is convenient for the next use.

[0032] In this embodiment, the bottom of both ends of the bottom plate 51 are fixedly connected with fixing bolts 52 respectively, and the fixing bolts 52 pass through the mounting holes 54 opened on the connecting flange 4. The lower end of the fixing bolts 52 is threadedly connected with nuts 53. When working, the fixing bolts 52 and the nuts 53 cooperate to facilitate the installation of the connecting assembly 5 on the check valve 3 and facilitate disassembly.

[0033] In this embodiment, four groups of springs 511 are provided, and are symmetrically arranged on both sides of the inner cavity 56. During operation, by symmetrically arranging the springs 511 on both sides of the inner cavity 56, on the one hand, the movable plate 58 can move stably, and on the other hand, it is convenient to arrange the push rod 512 in the middle position of the springs 511 on both sides, so that the push rod 512 can be easily pressed against the movable plate 58.

[0034] In this embodiment, the inner cavity 56 is configured to be in a cubic shape, and the side edges of the movable plate 58 are in contact with the inner wall of the inner cavity 56 , so that the movable plate 58 can stably move back and forth along the inner cavity 56 during operation.

[0035] In this embodiment, a roller 514 is rotatably mounted in the middle of one end of the push rod 512 adjacent to the movable plate 58 , so that the push rod 512 can move up and down along the inner wall of the movable plate 58 during operation.

[0036] The working principle of the device is as follows: when installing the sewage suction hose 7 to the connection end 32 of the check valve 3, hold the connection sleeve 6 at the end of the sewage suction hose 7, insert the connection sleeve 6 from the top of the connection end 32, and align the limit hole 522 on the limit plate 521 with the vertical rod 55. As the connection sleeve 6 moves downward, it will contact the movable ring 516 and synchronously push the movable ring 516 to move downward along the connection end 32. At the same time, the limit plate 521 moves downward along the vertical rod 55. The limit plate 521 contacts the inclined edge of the top of the limit block 510, forcing the limit block 510 to move toward the inner cavity 56. Then, through The movable plate 58 squeezes the push rod 512, so that the push rod 512 moves toward the inside of the sliding cavity 520, and the second spring 515 is compressed. After the limit plate 521 passes the limit block 510, the limit block 510 is reset under the rebound effect of the second spring 515, thereby blocking the upper part of the limit plate 521, so that the limit plate 521 can be limited to move back. In this way, the connecting sleeve 6 can be stably installed on the second connecting end 32, which is convenient for quickly installing the connecting sleeve 6 and the sewage suction hose 7 in the device, and at the same time, when the swimming pool sewage suction head body 1 is placed on the bottom of the swimming pool and moved, the connecting sleeve 6 will not be dragged. The spring 1 511 is initially in an elongated state, and when the connecting sleeve 6 needs to be removed from the connecting end 2 32, the movable ring 516 is pressed downward, and the movable ring 516 compresses the spring 3 519 downward, and at the same time drives the sleeve rod 513 and the push rod 512 to move downward until the push rod 512 moves to the lower position of the movable plate 58. At this time, the push rod 512 no longer presses against the movable plate 58. Under the pulling action of the spring 1 511, the movable plate 58 slides toward the middle position, thereby driving the limit block 510 to retract into the through hole 59. At this time, the limit block 510 no longer blocks the top of the limit plate 521 The part can be pulled upward, so that the limit plate 521, the connecting sleeve 6 and the sewage suction hose 7 can be pulled out upward, which is convenient for quickly disassembling the sewage suction hose 7. When the limit plate 521 is separated from the vertical rod 55, the movable ring 516 is loosened, and the movable ring 516 is pushed upward to move back to the original position under the rebound action of the spring three 519. The movable ring 516 drives the sleeve rod 513 and the push rod 512 to move upward synchronously. The push rod 512 abuts against the surface of the arc plate 518 and can push the arc plate 518 and the movable plate 58 to move in the direction away from the check valve 3, so that the movable plate 58 and the limit block 510 can be returned to the initial position, which is convenient for next use.In addition, when the check valve 3 is installed in the connecting pipe 2, the shift block 88 is first moved, and the shift block 88 drives the limit bar 83 to move in the direction of the spring four 87. The spring four 87 is compressed. When the limit bar 83 slides, the position of the notch 84 changes, so that the notch 84 moves to be aligned with the notch 2 810. At this time, the connecting end 131 at the bottom of the check valve 3 can be vertically inserted from the top of the connecting pipe 2, and the limit buckle 85 passes through the notch 2 810. When the connecting end 131 moves to the bottom of the middle connecting pipe 2, the shift block 88 is released. Under the rebound action of the spring four 87, the limit bar 83 is pushed to reset, so that the notch 1 84 and the notch 2 810 can be misaligned. At this time, the top of the limit buckle 85 can be clamped on the top of the limit bar 83, thereby preventing the connecting end 131 from moving upward, thereby effectively preventing the check valve 3 from detaching from the connecting pipe 2.

[0037] The electrical components that appear in this article are all electrical components that exist in reality.

[0038] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A hose structure for a swimming pool cleaner, comprising a swimming pool suction head body (1), a check valve (3) and a suction hose (7), characterized in that: A connecting pipe (2) is fixedly connected to the middle of the top of the swimming pool suction head body (1); a connecting end 1 (31) is provided at the bottom of the check valve (3); the connecting end 1 (31) is detachably connected to the connecting pipe (2); a connecting end 2 (32) is provided at the top of the check valve (3); a connecting sleeve (6) is fixedly installed at the bottom of the suction hose (7); the bottom end of the connecting sleeve (6) is sleeved on the outside of the connecting end 2 (32); a connecting flange (4) is fixedly connected to the outer wall of the middle part of the check valve (3); a connecting assembly (5) is provided above the connecting flange (4); the connecting sleeve (6) is installed on the connecting end 2 (32) of the check valve (3) through the connecting assembly (5); the connecting sleeve (6) is fixedly installed on the outer wall of the middle part of the check valve (3); the connecting flange (4) is fixedly connected to the outer wall of the check valve (3); a connecting assembly (5) is provided above the connecting flange (4); the connecting sleeve (6) is fixedly installed on the connecting end 2 (32) of the check valve (3) through the connecting assembly (5); the connecting sleeve (6) is fixedly installed on the connecting end 2 (32) of the check valve (3); the connecting sleeve (6) is fixedly installed on the outer wall ... The bottom of the first connection end (31) is provided with an anti-detachment component (8), and the anti-detachment component (8) prevents the first connection end (31) from detaching from the connection pipe (2); the connection component (5) comprises a bottom plate (51), and the bottom plate (51) is sleeved on the outer side of the second connection end (32) of the check valve (3) through a through hole arranged in the middle, and vertical rods (55) are symmetrically fixedly connected to the tops of both sides of the bottom plate (51), and an inner cavity (56) is arranged inside the vertical rods (55), and a movable plate (58) is slidably installed on the side of the inner cavity (56) close to the check valve (3), and a plurality of groups of limit blocks (510) are fixedly connected at equal intervals on the side wall of the movable plate (58) away from the check valve (3), and the ... the two sides of the bottom plate (51), and the vertical rods (55) are symmetrically fixedly connected to the tops of the two sides of the bottom plate (51), and the vertical rods (55) are symmetrically fixedly connected to the tops of the two sides of the bottom plate (51), and the vertical rods (55) are symmetrically fixedly connected to the tops of the two sides of the bottom plate (51), and the vertical rods (55) are symmetrically fixedly connected to the tops of the two sides of the A plurality of through holes (59) are provided on the side wall away from the check valve (3), the through holes (59) corresponding to the limit blocks (510) one by one, the end of the limit block (510) passes through the through hole (59), and the top of the end of the limit block (510) protruding out of the through hole (59) is arranged in an inclined shape, a spring three (519) is fixedly installed on the upper middle part of the bottom plate (51), the spring three (519) is sleeved on the outside of the second connection end (32), a movable ring (516) is fixedly installed on the top of the spring three (519), the movable ring (516) is slidably sleeved on the outside of the second connection end (32), the movable ring (516) is fixedly connected to the sleeve rod (513) on the side close to the vertical rod (55), the A through groove (57) is provided on one side of the vertical rod (55) close to the check valve (3), the sleeve rod (513) passes through the through groove (57) and enters the inner cavity (56), a sliding cavity (520) is provided inside the end of the sleeve rod (513), and a push rod (512) is slidably installed in the sliding cavity (520), the push rod (512) abuts against the inner wall of the movable plate (58), a spring (515) for returning the push rod (512) is fixedly installed inside the sliding cavity (520), a limiting plate (521) is fixedly connected to the outer wall of the bottom of the connecting sleeve (6), and limiting holes (522) are symmetrically provided at both ends of the limiting plate (521), and the limiting holes (522) are adapted to the vertical rod (55).

2. The hose structure of a swimming pool cleaner according to claim 1, characterized in that: The anti-slip assembly (8) comprises a stop ring (81) fixedly connected to the outer side of the bottom of the connection end (31), the stop ring (81) is provided with an annular movable cavity (82), the front end of the stop ring (81) is provided with a through groove (89), a stop strip (83) with two ends not closed is slidably installed inside the movable cavity (82), the stop ring (81) is symmetrically provided with a notch (810) extending vertically on the left and right sides, the stop strip (83) is provided with a notch (84) at the side of the notch (810), the notch (84) and the notch (810) are adapted to each other, and the swimming pool suction head body ( A limit buckle (85) is fixedly connected in the middle of the top of the connecting tube (1) and symmetrically located on both sides of the connecting tube (2), the limit buckle (85) corresponds to the notch 2 (810), one end of the limit strip (83) is arranged in the middle of the through slot 3 (89), and a shift block (88) is fixedly connected on the outer wall of the end of the limit strip (83), the shift block (88) passes through the through slot 3 (89), a baffle (86) is fixedly connected inside the movable cavity (82) and located inside one side end of the through slot 3 (89), and a spring 4 (87) is fixedly connected between the side wall of the baffle (86) and the end side wall of the limit strip (83).

3. The hose structure of a swimming pool cleaner according to claim 2, characterized in that: The upper and lower ends of the movable plate (58) close to the check valve (3) are respectively fixedly connected to a spring 1 (511), and the end of the spring 1 (511) away from the movable plate (58) is fixedly connected to the inner wall of the inner cavity (56).

4. The hose structure of a swimming pool cleaner according to claim 2, characterized in that: A second through groove (517) is provided at the bottom of the side of the vertical rod (55) away from the check valve (3), and an arc plate (518) is fixedly connected to the bottom of the movable plate (58), and the lower end of the arc plate (518) passes through the second through groove (517) and extends to the outside.

5. The hose structure of a swimming pool cleaner according to claim 2, characterized in that: The bottoms of both ends of the bottom plate (51) are respectively fixedly connected with fixing bolts (52), the fixing bolts (52) pass through the mounting holes (54) provided on the connecting flange (4), and the lower ends of the fixing bolts (52) are threadedly connected with nuts (53).

6. The hose structure of a swimming pool cleaner according to claim 3, characterized in that: The spring 1 (511) is provided in four groups and is symmetrically arranged on both sides of the inner cavity (56).

7. The hose structure of a swimming pool cleaner according to claim 2, characterized in that: The inner cavity (56) is configured to be in a cubic shape, and the side edges of the movable plate (58) are in contact with the inner wall of the inner cavity (56).

8. The hose structure of a swimming pool cleaner according to claim 2, characterized in that: A roller (514) is rotatably mounted in the middle of one end of the push rod (512) adjacent to the movable plate (58).

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