A water tank joint anti-disconnection structure

Abstract

The application discloses a water pool joint anti-disengagement connecting structure, and aims at solving the problem of poor connecting reliability of the water pool joint, and the rust caused by the water leakage. The water pool joint is provided with a side pipe insertion hole and a foot pipe insertion hole. The side pipe insertion hole is used for inserting and connecting a side pipe, and the foot pipe insertion hole is used for inserting and connecting a foot pipe. A rotatingly arranged locking rod is arranged in the water pool joint. The side pipe is provided with a turned edge. The foot pipe is inserted into the foot pipe insertion hole to push the locking rod to rotate, so that the locking rod is abutted on the turned edge. The side pipe and the foot pipe are reliably connected with the water pool joint, the disengagement phenomenon is avoided, the connecting position is not easy to leak water, and the rust of metal parts caused by the water leakage is avoided.

Description

Technical Field

[0001] This invention relates to the field of support pool technology, and more specifically, to a pool connector anti-detachment connection structure. Background Technology

[0002] The pool support frame is assembled from side tubes, foot tubes, and connectors. Adjacent side tubes are connected by connectors to form an upper frame, and foot tubes are connected to the connectors to support the entire upper frame. Both the side tubes and foot tubes are connected to connectors, and the reliability of these connections directly affects the overall reliability of the pool support frame. To prevent the side tubes and foot tubes from detaching from the connectors, limiting pins are installed between the side tubes and connectors, and between the foot tubes and connectors. However, these limiting pins protrude from the connector surface, making them prone to leakage and causing metal parts to rust. Chinese Patent Application No. 2017201626100 discloses an above-ground pool and its support frame, in which pins are connected between the side tubes and connectors, and between the foot tubes and connectors. However, these pins also protrude from the connector surface, creating a risk of leakage at this location, which in turn causes metal parts to rust. Summary of the Invention

[0003] To overcome the above shortcomings, the present invention provides a water tank connector anti-detachment connection structure, which ensures reliable connection of the water tank connector, prevents detachment, and prevents water leakage at the connection point, thus avoiding rusting of metal parts caused by water leakage.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a water tank connector anti-detachment connection structure, wherein the water tank connector is provided with a side tube insertion hole and a foot tube insertion hole, the side tube insertion hole is used to connect the side tube, the foot tube insertion hole is used to connect the foot tube, a rotatably mounted locking rod is installed inside the water tank connector, the edge of the side tube is provided with a flange, the foot tube is inserted into the foot tube insertion hole to push the locking rod to rotate so that the locking rod presses against the flange.

[0005] The side tube insertion holes on the pool connector are used to insert and connect the side tubes, and the foot tube insertion holes on the same connector are used to insert and connect the foot tubes. Multiple side tubes are connected through the pool connector to form a frame structure. Then, the foot tubes are inserted into the foot tube insertion holes to form the entire pool support. The foot tubes provide support for the entire pool support. During assembly, the side tubes are first inserted into the side tube insertion holes, and then the foot tubes are installed. As the foot tubes are inserted into the foot tube insertion holes, they push the locking rod to rotate, causing the locking rod to press against the flange, thereby locking and positioning the side tubes and preventing them from dislodging from the side tube insertion holes. This ensures the reliability of the connection between the side tubes and the pool connector and prevents water leakage at the connection point.

[0006] As a preferred option, a limiting component is installed inside the water tank connector, with a limiting pin on the limiting component and a limiting hole on the side pipe. The limiting pin and the limiting hole are connected by insertion, and the limiting pin is hidden inside the water tank connector.

[0007] The limiting pin on the limiting component is inserted into the limiting hole on the side pipe, which limits the side pipe and prevents it from detaching from the pool connector. The limiting pin is hidden inside the pool connector to prevent it from being exposed on the surface of the pool connector and increasing the risk of leakage.

[0008] Preferably, the limiting pin is slidably mounted on the limiting component, a positioning spring is installed between the limiting pin and the limiting component, and the limiting component is securely connected to the pool connector.

[0009] The positioning spring provides preload to the limit pin, allowing the limit pin to pop out from the limit hole and achieve the insertion connection between the limit pin and the limit hole.

[0010] Preferably, the end of the limiting pin is provided with an inclined pushing surface, which is set towards the side tube.

[0011] During the process of inserting the side tube into the side tube insertion hole, the end of the side tube contacts the pushing surface first. As the side tube is pushed inward, the limiting pin is pushed inward, and the end of the limiting pin first hits the inner wall of the side tube. As the side tube continues to be inserted, the end of the limiting pin aligns with the limiting hole. At this time, under the action of the positioning spring, the limiting pin pops outward and is inserted into the limiting hole.

[0012] Preferably, the pool connector is provided with an unlocking hole corresponding to the limit pin, and the unlocking hole is sealed with a flexible sealing cover, which presses against the limit pin.

[0013] When disassembling the side pipe from the pool joint, press the flexible sealing cap by hand to push the limit pin inward and disengage it from the limit hole. At this time, the limit pin loses its constraint on the side pipe, and the side pipe can be easily pulled outward.

[0014] Another option is an integrated structure of the limiting pin and the limiting component, with the limiting component slidably connected to the pool connector. A return spring is installed between the limiting component and the pool connector, and the end of the foot tube presses against the limiting component.

[0015] A return spring is installed between the limiting component and the pool connector. The side tube is installed first, followed by the foot tube. During side tube installation, the limiting pin retracts under the action of the return spring. During foot tube installation, the end of the foot tube presses against the limiting component, pushing the limiting component to move, thereby allowing the limiting pin to be inserted into the limiting hole to limit the side tube.

[0016] Preferably, a groove corresponding to the limiting pin is provided on the inner wall of the side tube insertion hole, and the end of the limiting pin is placed in the groove.

[0017] The end of the limiting pin is placed in the recess, which increases the length of the pin extension and thus improves the limiting ability of the side pipe. The recess is enclosed to prevent leakage caused by openness.

[0018] Preferably, a hook is provided at the end of the locking bar, and a flange is provided on the flanged edge, with the hook hooking onto the flange.

[0019] The hook on the locking bar engages with the flange of the flange, improving the locking bar's ability to limit and lock the side tube.

[0020] Preferably, a pressure groove is provided on the outer wall of the side tube, a hollow sealing ring is installed in the pressure groove, an air cylinder is installed inside the side tube, an air-filled push rod and a return spring are installed inside the air cylinder, the sealing ring and the air cylinder are connected by a pipe, and an inclined pushing surface is provided at the end of the limiting pin, with the air-filled push rod pressing against the pushing surface.

[0021] During the installation of the side tube, the sealing ring is in a deflated state, facilitating the insertion of the side tube into the side tube insertion hole. Once the side tube is in place, as the limiting pin extends outwards, the inclined pushing surface of the limiting pin presses against the inflation rod, pushing the inflation rod to move. This forces the airflow from the inflation cylinder into the sealing ring, causing it to bulge and tightly install itself between the outer wall of the side tube and the inner wall of the side tube insertion hole, thus achieving both sealing and waterproofing, as well as positioning.

[0022] Preferably, the air cylinder has an arc-shaped structure, with the inflation rod connected to the inflation plug, and the inflation plug is fitted and installed in the air cylinder.

[0023] The curved air cylinder is installed on the inner wall of the side pipe to avoid interference between the air cylinder and the water tank joint during side pipe installation. The curved shape of the air cylinder increases the internal air storage space, ensuring that the sealing ring can fully bulge out.

[0024] Compared with the prior art, the beneficial effects of the present invention are: (1) The connection between the side tube, the foot tube and the pool joint is reliable, avoiding the phenomenon of separation, and the connection position is not easy to leak water, avoiding the phenomenon of metal parts rusting due to water leakage; (2) The limiting pin is inserted into the limiting hole on the side tube to realize the limiting of the side tube. The limiting pin is hidden inside the pool joint to prevent the limiting pin from being exposed to the surface of the pool joint and increasing the risk of water leakage; (3) During the process of the foot tube being inserted into the foot tube insertion hole, the foot tube pushes the locking rod to rotate so that the locking rod hits the flange, thereby realizing the locking and positioning of the side tube; (4) During the process of the limiting pin extending outward, the pushing surface hits the inflation rod and pushes the inflation rod to move, pressing the airflow in the inflation cylinder into the sealing ring, thereby making the sealing ring bulge and tightly installed between the outer wall of the side tube and the inner wall of the side tube insertion hole, playing the role of sealing, waterproofing and positioning. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the usage state of the present invention.

[0026] Figure 2 This is a cross-sectional view of Embodiment 1 of the present invention.

[0027] Figure 3 These are structural diagrams of the limiting components in embodiments 1 and 3 of the present invention.

[0028] Figure 4This is a cross-sectional view of Embodiment 2 of the present invention.

[0029] Figure 5 These are structural diagrams of the limiting components in embodiments 2 and 4 of the present invention.

[0030] Figure 6 This is a cross-sectional view of Embodiment 3 of the present invention.

[0031] Figure 7 This is a structural diagram of the connection between the air cylinder and the side tube of the present invention.

[0032] Figure 8 This is a cross-sectional view of Embodiment 4 of the present invention.

[0033] In the diagram: 1. Water tank connector, 2. Side pipe insertion hole, 3. Foot pipe insertion hole, 4. Side pipe, 5. Foot pipe, 6. Mounting cylinder, 7. Locking rod, 8. Flanged edge, 9. Mounting groove, 10. Positioning post, 11. Hook, 12. Flange, 13. Extension, 14. Limiting component, 15. Limiting pin, 16. Limiting hole, 17. Guide post, 18. Guide hole, 19. Pushing surface, 20. Positioning spring, 21. Mounting hole, 22. Unlocking hole, 23. Flexible sealing cover, 24. Return spring, 25. Connecting post, 26. Sliding hole, 27. Settlement groove, 28. Pressing groove, 29. Sealing ring, 30. Air cylinder, 31. Inflation rod, 32. Return spring, 33. Inflation plug, 34. Air inlet pipe, 35. Connecting pipe, 36. Air outlet pipe, 37. Extension platform. Detailed Implementation

[0034] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: A water tank connector anti-detachment connection structure (see...) Figure 1 , Figure 2 , Figure 3 The pool connector 1 has side pipe insertion holes 2 and foot pipe insertion holes 3. The side pipe insertion holes 2 are arranged horizontally, and the foot pipe insertion holes 3 are arranged vertically. The included angle between the axes of the two side pipe insertion holes 2 on the pool connector 1 is an obtuse angle. Side pipes 4 are inserted into the side pipe insertion holes 2, and foot pipes 5 are inserted into the foot pipe insertion holes 3. Multiple side pipes 4 are connected through the pool connector 1 to form a frame structure. Then, the foot pipes 5 are inserted into the foot pipe insertion holes 3 to form the entire pool support. An installation cylinder 6 is provided inside the pool connector 1. The installation cylinder 6 is placed between the two side pipe insertion holes 2, and the lower end of the installation cylinder 6 opens to form the foot pipe insertion hole 3.

[0035] A rotatable locking rod 7 is installed inside the pool connector 1. A flange 8 is provided on the edge of the side tube 4. The foot tube 5 is inserted into the foot tube insertion hole 3, pushing the locking rod 7 to rotate so that it rests against the flange 8. An installation groove 9, communicating with the side tube insertion hole 2, is provided on the inner wall of the foot tube insertion hole 3. The middle part of the locking rod 7 is rotatably installed in the installation groove 9. A positioning torsion spring is installed between the locking rod 7 and the installation groove 9. A positioning post 10 is provided inside the installation groove 9 to position the locking rod 7. A hook 11 is provided at the end of the locking rod 7, and a flange 12 is provided on the edge of the flange 8. The hook 11 on the locking rod 7 engages with the flange 12 of the flange 8, improving the locking rod 7's ability to limit and lock the side tube 4.

[0036] An extension 13 is provided on the upper side of the end of the side tube 4, and a limiting hole 16 is provided on the extension 13. An insertion gap is formed between the bottom of the mounting cylinder 6 and the inner wall of the side tube insertion hole 2, and the extension 13 is placed in the insertion gap.

[0037] A limiting component 14 is installed inside the water tank connector 1. Two limiting pins 15 are provided on the limiting component 14, and limiting holes 16 are provided on the side pipe 4. The two limiting pins 15 are respectively inserted into the two limiting holes 16, and the limiting pins 15 are hidden inside the water tank connector 1. The limiting component 14 is installed at the bottom of the mounting cylinder 6. Two guide posts 17 are provided at the bottom of the mounting cylinder 6, and two guide holes 18 are provided on the limiting component 14. The two guide posts 17 are respectively movably inserted into the two guide holes 18. An inclined pushing surface 19 is provided at the end of the limiting pin 15, and the pushing surface 19 faces the side pipe 4.

[0038] The limiting pin 15 is slidably mounted on the limiting member 14. A positioning spring 20 is installed between the limiting pin 15 and the limiting member 14. The limiting member 14 is fastened to the water tank connector 1. The limiting member 14 and the bottom of the mounting cylinder 6 are fastened together by screws. The limiting member 14 is provided with a mounting hole 21. The lower part of the limiting pin 15 is slidably mounted in the mounting hole 21. The positioning spring 20 abuts against the bottom of the mounting hole 21 and the limiting pin 15. The bottom of the mounting cylinder 6 is provided with a through hole corresponding to the limiting pin 15. A boss is provided at the lower end of the limiting pin 15. The upper part of the limiting pin 15 is movably inserted into the through hole. The boss is supported at the bottom of the mounting cylinder 6 to achieve limiting.

[0039] The pool connector 1 is provided with an unlocking hole 22 corresponding to the limiting pin 15. The unlocking hole 22 is sealed to a flexible sealing cover 23, which presses against the limiting pin 15. When the side tube 4 is disassembled from the pool connector 1, the flexible sealing cover 23 is pressed by hand, thereby pushing the limiting pin 15 to move inward and disengage from the limiting hole 16. At this time, the limiting pin 15 loses its constraint on the side tube 4, and the side tube 4 can be easily pulled outward.

[0040] The side tube insertion hole 2 on the pool connector 1 is used to insert and connect the side tube 4, and the foot tube insertion hole 3 on the pool connector 1 is used to insert and connect the foot tube 5. Multiple side tubes 4 are connected through the pool connector 1 to form a frame structure. Then, the foot tubes 5 are inserted into the foot tube insertion hole 3 to form the entire pool support. The foot tubes 5 provide support for the entire pool support and, under the influence of gravity, are not easily detached from the pool connector 1. During assembly, the side tube 4 is first inserted into the side tube insertion hole 2. During the process of inserting the side tube 4 into the side tube insertion hole 2, the end of the side tube 4 contacts the pushing surface 19 first. As the side tube 4 is pushed inward, the limiting pin 15 is pushed inward. The end of the limiting pin 15 first pushes against the inner wall of the side tube 4. As the side tube 4 continues to be inserted, the end of the limiting pin 15 aligns with the limiting hole 16. At this time, under the action of the positioning spring 20, the limiting pin 15 pops outward and is inserted into the limiting hole 16. During the installation of the side tube 4, the end of the locking rod 7 and the flange 8 are in a position far apart from each other and will not interfere. Then install the foot tube 5. During the process of inserting the foot tube 5 into the foot tube insertion hole 3, the foot tube 5 pushes the locking rod 7 to rotate so that the locking rod 7 presses against the flange 8. The hook 11 on the locking rod 7 is locked at the flange 12 of the flange 8, thereby locking and positioning the side tube 4, preventing the side tube 4 from coming out of the side tube insertion hole 2, ensuring the reliability of the connection between the side tube 4 and the water tank connector 1, and preventing water leakage at the connection point.

[0041] During disassembly, first pull out the foot tube 5, the end of the locking rod 7 separates from the flange 8, then press the flexible sealing cover 23 by hand, thereby pushing the limit pin 15 to move inward and disengage from the limit hole 16. At this time, the limit pin 15 loses its constraint on the side tube 4, and finally pull out the side tube 4.

[0042] Example 2: A water tank connector anti-detachment connection structure (see...) Figure 1 , Figure 4 , Figure 5 The pool connector 1 has side pipe insertion holes 2 and foot pipe insertion holes 3. The side pipe insertion holes 2 are arranged horizontally, and the foot pipe insertion holes 3 are arranged vertically. The included angle between the axes of the two side pipe insertion holes 2 on the pool connector 1 is an obtuse angle. Side pipes 4 are inserted into the side pipe insertion holes 2, and foot pipes 5 are inserted into the foot pipe insertion holes 3. Multiple side pipes 4 are connected through the pool connector 1 to form a frame structure. Then, the foot pipes 5 are inserted into the foot pipe insertion holes 3 to form the entire pool support. An installation cylinder 6 is provided inside the pool connector 1. The installation cylinder 6 is placed between the two side pipe insertion holes 2, and the lower end of the installation cylinder 6 opens to form the foot pipe insertion hole 3.

[0043] A rotatable locking rod 7 is installed inside the pool connector 1. A flange 8 is provided on the edge of the side tube 4. The foot tube 5 is inserted into the foot tube insertion hole 3, pushing the locking rod 7 to rotate so that it rests against the flange 8. An installation groove 9, communicating with the side tube insertion hole 2, is provided on the inner wall of the foot tube insertion hole 3. The middle part of the locking rod 7 is rotatably installed in the installation groove 9. A positioning torsion spring is installed between the locking rod 7 and the installation groove 9. A positioning post 10 is provided inside the installation groove 9 to position the locking rod 7. A hook 11 is provided at the end of the locking rod 7, and a flange 12 is provided on the edge of the flange 8. The hook 11 on the locking rod 7 engages with the flange 12 of the flange 8, improving the locking rod 7's ability to limit and lock the side tube 4.

[0044] An extension 13 is provided on the upper side of the end of the side tube 4, and a limiting hole 16 is provided on the extension 13. An insertion gap is formed between the bottom of the mounting cylinder 6 and the inner wall of the side tube insertion hole 2, and the extension 13 is placed in the insertion gap.

[0045] A limiting component 14 is installed inside the water tank connector 1. Two limiting pins 15 are provided on the limiting component 14, and limiting holes 16 are provided on the side pipe 4. The two limiting pins 15 are respectively inserted into the two limiting holes 16, and the limiting pins 15 are hidden inside the water tank connector 1. The limiting component 14 is installed at the bottom of the mounting cylinder 6. Two guide posts 17 are provided at the bottom of the mounting cylinder 6, and two guide holes 18 are provided on the limiting component 14. The two guide posts 17 are respectively movably inserted into the two guide holes 18. An inclined pushing surface 19 is provided at the end of the limiting pin 15, and the pushing surface 19 faces the side pipe 4.

[0046] The limiting pin 15 and the limiting component 14 are integrally structured. The limiting component 14 is slidably connected to the water tank connector 1. A return spring 24 is installed between the limiting component 14 and the water tank connector 1. The end of the foot tube 5 presses against the limiting component 14. A connecting post 25 is provided at the bottom of the mounting cylinder 6. A sliding hole 26 is provided on the limiting component 14. The sliding hole 26 and the connecting post 25 are slidably fitted together. The return spring 24 is fitted onto the connecting post 25 and abuts against the limiting component 14. A connecting limiting screw is fastened to the connecting post 25. The outer diameter of the limiting screw is larger than the inner diameter of the sliding hole 26, thereby preventing the limiting component 14 from disengaging from the connecting post 25. An outwardly extending extension platform 37 is provided on the outer wall of the limiting component 14. The upper end of the foot tube 5 rests on the extension platform 37.

[0047] A return spring 24 is installed between the limiting member 14 and the water tank connector 1. The side tube 4 is installed first, followed by the foot tube 5. During the installation of the side tube 4, the limiting pin 15 retracts under the action of the return spring 24. During the installation of the foot tube 5, the end of the foot tube 5 presses against the limiting member 14, pushing the limiting member 14 to move, thereby allowing the limiting pin 15 to be inserted into the limiting hole 16 to limit the side tube 4.

[0048] A recess 27 corresponding to the limiting pin 15 is provided on the inner wall of the side pipe insertion hole 2, and the end of the limiting pin 15 is placed in the recess 27. Placing the end of the limiting pin 15 in the recess 27 increases the extension length of the limiting pin 15, thereby improving the limiting ability of the side pipe 4. The recess 27 is closed to prevent water leakage caused by openness.

[0049] The side tube insertion hole 2 on the pool connector 1 is used to insert and connect the side tube 4, and the foot tube insertion hole 3 on the pool connector 1 is used to insert and connect the foot tube 5. Multiple side tubes 4 are connected through the pool connector 1 to form a frame structure. Then, the foot tubes 5 are inserted into the foot tube insertion hole 3 to form the entire pool support. The foot tubes 5 provide support for the entire pool support and, under the influence of gravity, are not easily detached from the pool connector 1. During assembly, the side tubes 4 are first inserted into the side tube insertion hole 2. During the installation of the side tubes 4, the end of the locking rod 7 and the flange 8 are in a position far apart from each other and will not interfere. Next, the foot tube 5 is installed. During the process of inserting the foot tube 5 into the foot tube insertion hole 3, the foot tube 5 pushes the locking rod 7 to rotate, causing the locking rod 7 to press against the flange 8. The hook 11 on the locking rod 7 is engaged with the flange 12 of the flange 8, thereby locking and positioning the side tube 4, preventing the side tube 4 from dislodging from the side tube insertion hole 2, ensuring the reliability of the connection between the side tube 4 and the water tank connector 1, and preventing water leakage at the connection point. The end of the foot tube 5 presses against the extension platform 37, thereby pushing the limiting member 14 to move upward, so that the limiting pin 15 is inserted and connected with the limiting hole 16.

[0050] During disassembly, first pull out the foot tube 5, the end of the locking rod 7 separates from the flange 8, the limiting member 14 moves downward, the limiting pin 15 disengages from the limiting hole 16, at this time the limiting pin 15 loses its constraint on the side tube 4, and then pull out the side tube 4.

[0051] Example 3: A water tank connector anti-detachment connection structure (see Figure 1 , Figure 6 , Figure 7 The pool connector 1 has side pipe insertion holes 2 and foot pipe insertion holes 3. The side pipe insertion holes 2 are arranged horizontally, and the foot pipe insertion holes 3 are arranged vertically. The included angle between the axes of the two side pipe insertion holes 2 on the pool connector 1 is an obtuse angle. Side pipes 4 are inserted into the side pipe insertion holes 2, and foot pipes 5 are inserted into the foot pipe insertion holes 3. Multiple side pipes 4 are connected through the pool connector 1 to form a frame structure. Then, the foot pipes 5 are inserted into the foot pipe insertion holes 3 to form the entire pool support. An installation cylinder 6 is provided inside the pool connector 1. The installation cylinder 6 is placed between the two side pipe insertion holes 2, and the lower end of the installation cylinder 6 opens to form the foot pipe insertion hole 3.

[0052] A rotatable locking rod 7 is installed inside the pool connector 1. A flange 8 is provided on the edge of the side tube 4. The foot tube 5 is inserted into the foot tube insertion hole 3, pushing the locking rod 7 to rotate so that it rests against the flange 8. An installation groove 9, communicating with the side tube insertion hole 2, is provided on the inner wall of the foot tube insertion hole 3. The middle part of the locking rod 7 is rotatably installed in the installation groove 9. A positioning torsion spring is installed between the locking rod 7 and the installation groove 9. A positioning post 10 is provided inside the installation groove 9 to position the locking rod 7. A hook 11 is provided at the end of the locking rod 7, and a flange 12 is provided on the edge of the flange 8. The hook 11 on the locking rod 7 engages with the flange 12 of the flange 8, improving the locking rod 7's ability to limit and lock the side tube 4.

[0053] An extension 13 is provided on the upper side of the end of the side tube 4, and a limiting hole 16 is provided on the extension 13. An insertion gap is formed between the bottom of the mounting cylinder 6 and the inner wall of the side tube insertion hole 2, and the extension 13 is placed in the insertion gap.

[0054] A limiting component 14 is installed inside the water tank connector 1. Two limiting pins 15 are provided on the limiting component 14, and limiting holes 16 are provided on the side pipe 4. The two limiting pins 15 are respectively inserted into the two limiting holes 16, and the limiting pins 15 are hidden inside the water tank connector 1. The limiting component 14 is installed at the bottom of the mounting cylinder 6. Two guide posts 17 are provided at the bottom of the mounting cylinder 6, and two guide holes 18 are provided on the limiting component 14. The two guide posts 17 are respectively movably inserted into the two guide holes 18. An inclined pushing surface 19 is provided at the end of the limiting pin 15, and the pushing surface 19 faces the side pipe 4.

[0055] The limiting pin 15 is slidably mounted on the limiting member 14. A positioning spring 20 is installed between the limiting pin 15 and the limiting member 14. The limiting member 14 is fastened to the water tank connector 1. The limiting member 14 and the bottom of the mounting cylinder 6 are fastened together by screws. The limiting member 14 is provided with a mounting hole 21. The lower part of the limiting pin 15 is slidably mounted in the mounting hole 21. The positioning spring 20 abuts against the bottom of the mounting hole 21 and the limiting pin 15. The bottom of the mounting cylinder 6 is provided with a through hole corresponding to the limiting pin 15. A boss is provided at the lower end of the limiting pin 15. The upper part of the limiting pin 15 is movably inserted into the through hole. The boss is supported at the bottom of the mounting cylinder 6 to achieve limiting.

[0056] The pool connector 1 is provided with an unlocking hole 22 corresponding to the limiting pin 15. The unlocking hole 22 is sealed to a flexible sealing cover 23, which presses against the limiting pin 15. When the side tube 4 is disassembled from the pool connector 1, the flexible sealing cover 23 is pressed by hand, thereby pushing the limiting pin 15 to move inward and disengage from the limiting hole 16. At this time, the limiting pin 15 loses its constraint on the side tube 4, and the side tube 4 can be easily pulled outward.

[0057] A groove 28 is provided on the outer wall of the side pipe 4, and a hollow sealing ring 29 is installed in the groove 28. An air cylinder 30 is installed inside the side pipe 4, and an inflation rod 31 and a return spring 32 are installed inside the air cylinder 30. The air cylinder 30 has an arc-shaped structure. The inflation rod 31 is connected to an inflation plug 33, which is fitted into the air cylinder 30. The sealing ring 29 and the air cylinder 30 are connected by a pipe. The end of the limiting pin 15 is provided with an inclined pushing surface 19, and the inflation rod 31 rests on the pushing surface 19. The pipe between the sealing ring 29 and the air cylinder 30 includes an inlet pipe 34, a connecting pipe 35, and an outlet pipe 36. The connecting pipe 35 is tightly installed at the bottom of the groove 28. An air nozzle is provided on the sealing ring 29. The outlet pipe 36 is connected between the air nozzle and the connecting pipe 35. The inlet pipe 34 is connected between the air cylinder 30 and the connecting pipe 35.

[0058] During the installation of the side tube 4, the sealing ring 29 is in a deflated state, which facilitates the insertion of the side tube 4 into the side tube insertion hole 2. When the side tube 4 is installed in place, as the limiting pin 15 extends outward, the inclined pushing surface 19 on the limiting pin 15 presses against the inflation rod 31 and pushes the inflation rod 31 to move, forcing the airflow in the inflation cylinder 30 into the sealing ring 29. This causes the sealing ring 29 to bulge and be tightly installed between the outer wall of the side tube 4 and the inner wall of the side tube insertion hole 2, thus achieving the functions of sealing, waterproofing, and positioning.

[0059] The side tube insertion hole 2 on the pool connector 1 is used to insert and connect the side tube 4, and the foot tube insertion hole 3 on the pool connector 1 is used to insert and connect the foot tube 5. Multiple side tubes 4 are connected through the pool connector 1 to form a frame structure. Then, the foot tubes 5 are inserted into the foot tube insertion hole 3 to form the entire pool support. The foot tubes 5 provide support for the entire pool support and, under the influence of gravity, are not easily detached from the pool connector 1. During assembly, the side tube 4 is first inserted into the side tube insertion hole 2. During this process, the end of the side tube 4 contacts the pushing surface 19 first. As the side tube 4 is pushed inward, the limiting pin 15 is also pushed inward, with its end first pressing against the inner wall of the side tube 4. As the side tube 4 continues to be inserted, the end of the limiting pin 15 aligns with the limiting hole 16. At this point, under the action of the positioning spring 20, the limiting pin 15 pops outward and inserts into the limiting hole 16. As the limiting pin 15 extends outward, the inclined pushing surface 19 on the limiting pin 15 presses against the inflation rod 31 and pushes the inflation rod 31 to move, forcing the airflow in the inflation cylinder 30 into the sealing ring 29. This causes the sealing ring 29 to bulge and tightly install between the outer wall of the side tube 4 and the inner wall of the side tube insertion hole 2. During the installation of the side tube 4, the end of the locking rod 7 and the flange 8 are in a position far apart and will not interfere with each other. Then install the foot tube 5. During the process of inserting the foot tube 5 into the foot tube insertion hole 3, the foot tube 5 pushes the locking rod 7 to rotate so that the locking rod 7 presses against the flange 8. The hook 11 on the locking rod 7 is locked at the flange 12 of the flange 8, thereby locking and positioning the side tube 4, preventing the side tube 4 from coming out of the side tube insertion hole 2, ensuring the reliability of the connection between the side tube 4 and the water tank connector 1, and preventing water leakage at the connection point.

[0060] During disassembly, first pull out the foot tube 5, the end of the locking rod 7 separates from the flange 8, then press the flexible sealing cover 23 by hand, thereby pushing the limit pin 15 to move inward and disengage from the limit hole 16. At this time, the limit pin 15 loses its constraint on the side tube 4, and finally pull out the side tube 4.

[0061] Example 4: A water tank connector anti-detachment connection structure (see...) Figure 1 , Figure 8 The pool connector 1 has side pipe insertion holes 2 and foot pipe insertion holes 3. The side pipe insertion holes 2 are arranged horizontally, and the foot pipe insertion holes 3 are arranged vertically. The included angle between the axes of the two side pipe insertion holes 2 on the pool connector 1 is an obtuse angle. Side pipes 4 are inserted into the side pipe insertion holes 2, and foot pipes 5 are inserted into the foot pipe insertion holes 3. Multiple side pipes 4 are connected through the pool connector 1 to form a frame structure. Then, the foot pipes 5 are inserted into the foot pipe insertion holes 3 to form the entire pool support. An installation cylinder 6 is provided inside the pool connector 1. The installation cylinder 6 is placed between the two side pipe insertion holes 2, and the lower end of the installation cylinder 6 opens to form the foot pipe insertion hole 3.

[0062] A rotatable locking rod 7 is installed inside the pool connector 1. A flange 8 is provided on the edge of the side tube 4. The foot tube 5 is inserted into the foot tube insertion hole 3, pushing the locking rod 7 to rotate so that it rests against the flange 8. An installation groove 9, communicating with the side tube insertion hole 2, is provided on the inner wall of the foot tube insertion hole 3. The middle part of the locking rod 7 is rotatably installed in the installation groove 9. A positioning torsion spring is installed between the locking rod 7 and the installation groove 9. A positioning post 10 is provided inside the installation groove 9 to position the locking rod 7. A hook 11 is provided at the end of the locking rod 7, and a flange 12 is provided on the edge of the flange 8. The hook 11 on the locking rod 7 engages with the flange 12 of the flange 8, improving the locking rod 7's ability to limit and lock the side tube 4.

[0063] An extension 13 is provided on the upper side of the end of the side tube 4, and a limiting hole 16 is provided on the extension 13. An insertion gap is formed between the bottom of the mounting cylinder 6 and the inner wall of the side tube insertion hole 2, and the extension 13 is placed in the insertion gap.

[0064] A limiting component 14 is installed inside the water tank connector 1. Two limiting pins 15 are provided on the limiting component 14, and limiting holes 16 are provided on the side pipe 4. The two limiting pins 15 are respectively inserted into the two limiting holes 16, and the limiting pins 15 are hidden inside the water tank connector 1. The limiting component 14 is installed at the bottom of the mounting cylinder 6. Two guide posts 17 are provided at the bottom of the mounting cylinder 6, and two guide holes 18 are provided on the limiting component 14. The two guide posts 17 are respectively movably inserted into the two guide holes 18. An inclined pushing surface 19 is provided at the end of the limiting pin 15, and the pushing surface 19 faces the side pipe 4.

[0065] The limiting pin 15 and the limiting component 14 are integrally structured. The limiting component 14 is slidably connected to the water tank connector 1. A return spring 24 is installed between the limiting component 14 and the water tank connector 1. The end of the foot tube 5 presses against the limiting component 14. A connecting post 25 is provided at the bottom of the mounting cylinder 6. A sliding hole 26 is provided on the limiting component 14. The sliding hole 26 and the connecting post 25 are slidably fitted together. The return spring 24 is fitted onto the connecting post 25 and abuts against the limiting component 14. A connecting limiting screw is fastened to the connecting post 25. The outer diameter of the limiting screw is larger than the inner diameter of the sliding hole 26, thereby preventing the limiting component 14 from disengaging from the connecting post 25. An outwardly extending extension platform 37 is provided on the outer wall of the limiting component 14. The upper end of the foot tube 5 rests on the extension platform 37.

[0066] A return spring 24 is installed between the limiting member 14 and the water tank connector 1. The side tube 4 is installed first, followed by the foot tube 5. During the installation of the side tube 4, the limiting pin 15 retracts under the action of the return spring 24. During the installation of the foot tube 5, the end of the foot tube 5 presses against the limiting member 14, pushing the limiting member 14 to move, thereby allowing the limiting pin 15 to be inserted into the limiting hole 16 to limit the side tube 4.

[0067] A recess 27 corresponding to the limiting pin 15 is provided on the inner wall of the side pipe insertion hole 2, and the end of the limiting pin 15 is placed in the recess 27. Placing the end of the limiting pin 15 in the recess 27 increases the extension length of the limiting pin 15, thereby improving the limiting ability of the side pipe 4. The recess 27 is closed to prevent water leakage caused by openness.

[0068] A groove 28 is provided on the outer wall of the side pipe 4, and a hollow sealing ring 29 is installed in the groove 28. An air cylinder 30 is installed inside the side pipe 4, and an inflation rod 31 and a return spring 32 are installed inside the air cylinder 30. The air cylinder 30 has an arc-shaped structure. The inflation rod 31 is connected to an inflation plug 33, which is fitted into the air cylinder 30. The sealing ring 29 and the air cylinder 30 are connected by a pipe. The end of the limiting pin 15 is provided with an inclined pushing surface 19, and the inflation rod 31 rests on the pushing surface 19. The pipe between the sealing ring 29 and the air cylinder 30 includes an inlet pipe 34, a connecting pipe 35, and an outlet pipe 36. The connecting pipe 35 is tightly installed at the bottom of the groove 28. An air nozzle is provided on the sealing ring 29. The outlet pipe 36 is connected between the air nozzle and the connecting pipe 35. The inlet pipe 34 is connected between the air cylinder 30 and the connecting pipe 35.

[0069] During the installation of the side tube 4, the sealing ring 29 is in a deflated state, which facilitates the insertion of the side tube 4 into the side tube insertion hole 2. When the side tube 4 is installed in place, as the limiting pin 15 extends outward, the inclined pushing surface 19 on the limiting pin 15 presses against the inflation rod 31 and pushes the inflation rod 31 to move, forcing the airflow in the inflation cylinder 30 into the sealing ring 29. This causes the sealing ring 29 to bulge and be tightly installed between the outer wall of the side tube 4 and the inner wall of the side tube insertion hole 2, thus achieving the functions of sealing, waterproofing, and positioning.

[0070] The side tube insertion hole 2 on the pool connector 1 is used to insert and connect the side tube 4, and the foot tube insertion hole 3 on the pool connector 1 is used to insert and connect the foot tube 5. Multiple side tubes 4 are connected through the pool connector 1 to form a frame structure. Then, the foot tubes 5 are inserted into the foot tube insertion hole 3 to form the entire pool support. The foot tubes 5 provide support for the entire pool support and, under the influence of gravity, are not easily detached from the pool connector 1. During assembly, the side tubes 4 are first inserted into the side tube insertion hole 2. During the installation of the side tubes 4, the end of the locking rod 7 and the flange 8 are in a position far apart from each other and will not interfere. Then, the foot tube 5 is installed. During the process of inserting the foot tube 5 into the foot tube insertion hole 3, the foot tube 5 pushes the locking rod 7 to rotate, causing the locking rod 7 to press against the flange 8. The hook 11 on the locking rod 7 is engaged with the flange 12 of the flange 8, thereby locking and positioning the side tube 4, preventing the side tube 4 from dislodging from the side tube insertion hole 2, ensuring the reliability of the connection between the side tube 4 and the water tank connector 1, and preventing water leakage at the connection point. The end of the foot tube 5 presses against the extension platform 37, thereby pushing the limiting member 14 to move upward, so that the limiting pin 15 is inserted and connected with the limiting hole 16. During the outward extension of the limiting pin 15, the inclined pushing surface 19 on the limiting pin 15 presses against the inflation rod 31 and pushes the inflation rod 31 to move, forcing the airflow in the inflation cylinder 30 into the sealing ring 29, thereby causing the sealing ring 29 to bulge and be tightly installed between the outer wall of the side tube 4 and the inner wall of the side tube insertion hole 2.

[0071] During disassembly, first pull out the foot tube 5, the end of the locking rod 7 separates from the flange 8, the limiting member 14 moves downward, the limiting pin 15 disengages from the limiting hole 16, at this time the limiting pin 15 loses its constraint on the side tube 4, and then pull out the side tube 4.

[0072] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A water tank connector anti-detachment connection structure, characterized in that, The pool connector is equipped with a side pipe insertion hole and a foot pipe insertion hole. The side pipe is inserted into the side pipe insertion hole and the foot pipe is inserted into the foot pipe insertion hole. A rotating locking rod is installed inside the pool connector. The edge of the side pipe is provided with a flange. The foot pipe is inserted into the foot pipe insertion hole and pushes the locking rod to rotate so that the locking rod presses against the flange.

2. The anti-detachment connection structure for a water tank connector according to claim 1, characterized in that, A limiting component is installed inside the water tank connector. A limiting pin is set on the limiting component, and a limiting hole is set on the side pipe. The limiting pin and the limiting hole are connected by insertion. The limiting pin is hidden inside the water tank connector.

3. The anti-detachment connection structure for a water tank joint according to claim 2, characterized in that, The limit pin is slidably installed on the limit component, and a positioning spring is installed between the limit pin and the limit component. The limit component is fastened to the water tank connector.

4. The anti-detachment connection structure for a water tank joint according to claim 3, characterized in that, The end of the limit pin is provided with an inclined pushing surface, which faces the side tube.

5. The anti-detachment connection structure for a water tank joint according to claim 3, characterized in that, The water tank connector is equipped with an unlocking hole corresponding to the limit pin. The unlocking hole is sealed with a flexible sealing cover, which presses against the limit pin.

6. The anti-detachment connection structure for a water tank joint according to claim 2, characterized in that, The limit pin and the limit component are integrated into one structure. The limit component is slidably connected to the water tank connector. A return spring is installed between the limit component and the water tank connector. The end of the foot tube presses against the limit component.

7. The anti-detachment connection structure for a water tank joint according to claim 6, characterized in that, A groove corresponding to the limiting pin is provided on the inner wall of the side tube insertion hole, and the end of the limiting pin is placed in the groove.

8. A water tank connector anti-detachment connection structure according to any one of claims 1 to 7, characterized in that, A hook is provided at the end of the locking bar, and a flange is provided on the flanged edge. The hook is hooked onto the flange.

9. The anti-detachment connection structure for a water tank joint according to claim 2, characterized in that, A pressure groove is set on the outer wall of the side pipe, and a hollow sealing ring is installed in the pressure groove. An air cylinder is installed inside the side pipe, and an air-filled push rod and a return spring are installed inside the air cylinder. The sealing ring and the air cylinder are connected by a pipe. An inclined pushing surface is set at the end of the limit pin, and the air-filled push rod rests on the pushing surface.

10. The anti-detachment connection structure for a water tank joint according to claim 9, characterized in that, The air cylinder has an arc-shaped structure, with an inflation rod connected to an inflation plug, which is fitted and installed inside the air cylinder.

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