A plumbing connection structure

Abstract

This invention relates to a water supply and drainage pipe connection structure, comprising two water pipes, each end of which is connected to a connector, with an intermediate pipe between the two connectors. Each end of the two water pipes is fitted with a diagonal pressure ring. The structure also includes connecting sleeves, a fixing mechanism, a clamping mechanism, protective covers, and tension springs. Two connecting sleeves are respectively fitted onto the two water pipes, with the diagonal pressure rings located inside the connecting sleeves. The fixing mechanism is connected between the two connecting sleeves. Two clamping mechanisms are respectively connected to the two connecting sleeves. Multiple protective covers are respectively connected to the two connecting sleeves, and tension springs are provided between the protective covers and the connecting sleeves. This invention, by setting up connectors, an intermediate pipe, diagonal pressure rings, connecting sleeves, a clamping mechanism, and a fixing mechanism, first pre-fixes the two connecting sleeves using the fixing mechanism, then clamps the diagonal pressure rings using the clamping mechanism, and finally fixes the connecting sleeves using the fixing mechanism. This allows the two connectors to clamp the intermediate pipe, preventing water leakage from the intermediate pipe. The device is simple to operate and has a long service life.

Description

Technical Field

[0001] This invention belongs to the field of water supply and drainage pipeline technology, and specifically relates to a drainage pipeline connection structure. Background Technology

[0002] Currently, the connection of water supply and drainage pipes in municipal construction and maintenance requires structural treatment at the connection ends. For example, flanges are welded and then fixed with bolts; or adhesive or thermal welding is used. However, thermal welding provides insufficient connection strength and is too cumbersome. Furthermore, adhesives have a short lifespan, requiring multiple waterproofing treatments, and leaks often occur at the joints of these connections. Therefore, there is an urgent need to develop a new connection structure for water supply and drainage pipes to overcome the shortcomings of existing technologies. Summary of the Invention

[0003] The purpose of this invention is to provide a connection structure for water supply and drainage pipes to solve the problem of easy leakage at the interface.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A water supply and drainage pipe connection structure includes two water pipes 1, each end of which is connected to a connector 2; an intermediate pipe 3 is provided between the two connectors 2, and the intermediate pipe 3 abuts against the two connectors 2 respectively; each end of the two water pipes 1 is fitted with a slanted pressure ring 4, and the side of the slanted pressure ring 4 abuts against the connector 2.

[0006] It also includes two connecting sleeves 5, a fixing mechanism 6, two pressing mechanisms 7, multiple protective covers 8, and a tension spring 9; wherein, the two connecting sleeves 5 are respectively sleeved on two water pipes 1, and the two connecting sleeves 5 are symmetrically distributed about the middle of the two water pipes 1, with the inclined pressure ring 4 located inside the connecting sleeve 5; one end of each of the two connecting sleeves 5 is provided with an outwardly protruding flange 10; the fixing mechanism 6 is connected between the two connecting sleeves 5 and is connected to the flange 10, and is used to fix the two connecting sleeves 5; the two pressing mechanisms 7 are respectively connected to the two connecting sleeves 5; the multiple protective covers 8 are slidably connected to the two connecting sleeves 5, and a tension spring 9 is provided between the protective cover 8 and the connecting sleeve 5, and the protective cover 8 is used to protect the space between the two connecting sleeves 5, that is, to protect the intermediate pipe 3.

[0007] Furthermore, the ends of the two water pipes 1 are provided with internal threads, which are threadedly connected to the connector 2.

[0008] Furthermore, a first sealing groove is provided on the side of the connector 2 near the water pipe 1, the water pipe 1 extends into the first sealing groove, and a first waterproof sealing ring is also provided inside the first sealing groove; a second sealing groove is provided on the opposite sides of the two connectors 2, the two ends of the intermediate pipe 3 are respectively located in the two second sealing grooves, and a second waterproof sealing ring is also provided between the intermediate pipe 3 and the second sealing groove.

[0009] Furthermore, the fixing mechanism 6 includes a mounting base 61 fixedly connected to one of the connecting sleeves 5, a pull rod 62 rotatably connected inside the mounting base 61, and a notch opened on the flange 10 of the other connecting sleeve 5. One end of the pull rod 62 is located in the notch, and a nut 63 is threadedly connected to one end of the pull rod 62. The nut 63 abuts against the side of the connecting sleeve 5. The number of fixing mechanisms 6 is not less than two, and the multiple fixing mechanisms 6 are evenly distributed around the axis of the connecting sleeve 5.

[0010] Furthermore, the clamping mechanism 7 includes a rotating frame 71, a guide cylinder 72, a clamping rod 73, a clamping wheel 74, and a driving mechanism 75. The clamping mechanism 7 is used to clamp the inclined pressure ring 4 towards the center of the two water pipes 1. The rotating frame 71 is rotatably connected to the inside of the connecting sleeve 5, the guide cylinder 72 is rotatably connected to the rotating frame 71, the clamping rod 73 is inserted into the inside of the guide cylinder 72, and one end of the clamping rod 73 is rotatably connected to the connecting sleeve 5. The other end of the clamping rod 73 is rotatably connected to the clamping wheel 74. When clamping, the clamping wheel 74 can abut against the surface of the inclined pressure ring 4. When releasing, the clamping wheel 74 separates from the inclined pressure ring 4. The driving mechanism 75 is connected to the connecting sleeve 5, and one end of the driving mechanism 75 is connected to the rotating frame 71. The driving mechanism 75 is used to drive the rotating frame 71 to rotate.

[0011] Furthermore, the drive mechanism 75 includes a first rotating block 751 rotatably connected to the connecting sleeve 5 and a second rotating block 752 rotatably connected to the rotating frame 71. A screw 753 is rotatably connected to the first rotating block 751. One end of the screw 753 is threadedly connected to the second rotating block 752, and the other end of the screw 753 extends out of the connecting sleeve 5. A sliding groove is provided on the connecting sleeve 5 for the screw 753 to move.

[0012] Furthermore, the number of guide cylinders 72 is not less than two, and the multiple guide cylinders 72 are evenly distributed around the axis of the rotating frame 71. The number of clamping rods 73 is the same as the number of guide cylinders 72, so that the pressing mechanism 7 can press the inclined pressure ring 4 from multiple angles.

[0013] Furthermore, the clamping wheel 74 has an isosceles trapezoidal cross section, and the inclined plane angle of the clamping wheel 74 is the same as the inclined plane angle of the inclined pressure ring 4, so that the clamping wheel 74 and the inclined pressure ring 4 are compatible.

[0014] Furthermore, the protective cover 8 is composed of a sliding plate 81, an arc-shaped vertical plate 82, and an arc-shaped protective plate 83; the sliding plate 81 is slidably connected to the flange 10, and the tension spring 9 is disposed between the sliding plate 81 and the flange 10. One end of the sliding plate 81 is fixedly connected to the arc-shaped vertical plate 82, and the side of the arc-shaped vertical plate 82 near the water pipe 1 connected to it is fixedly connected to the arc-shaped protective plate 83. The arc-shaped protective plate 83 is slidably connected inside the connecting sleeve 5. The outer diameter of the arc-shaped protective plate 83 is the same as the inner diameter of the connecting sleeve 5. Multiple arc-shaped protective plates 83 located on the same connecting sleeve 5 can form a closed ring, and the number of protective covers 8 located on the same connecting sleeve 5 is not less than 2.

[0015] Furthermore, there are four protective covers 8 located on the same connecting sleeve 5, that is, the angle of the arc-shaped protective plate 83 is 90°.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The present invention relates to a water supply and drainage pipe connection structure, which includes a connector, an intermediate pipe, a slanted pressure ring, a connecting sleeve, a clamping mechanism, and a fixing mechanism. First, the fixing mechanism pre-fixes the two connecting sleeves, then the clamping mechanism clamps the slanted pressure ring, and finally the fixing mechanism fixes the connecting sleeves. This allows the two connectors to clamp the intermediate pipe, preventing water leakage from the intermediate pipe. The device is simple to operate and has a long service life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the assembled three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the assembled three-dimensional cross-sectional structure of the present invention;

[0021] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a side view cross-sectional structural diagram of the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the rotating frame of the present invention;

[0024] Figure 6 This is an exploded view of the water pipe connection of the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the protective cover of the present invention.

[0026] In the diagram: 1. Water pipe 2. Connector 3. Intermediate pipe 4. Inclined pressure ring 5. Connecting sleeve 6. Fixing mechanism 61. Mounting base 62. Pull rod 63. Nut 7. Clamping mechanism 71. Rotating frame 72. Guide cylinder 73. Clamping rod 74. Clamping wheel 75. Drive mechanism 751. First rotating block 752. Second rotating block 753. Screw 8. Protective cover 81. Slide plate 82. Arc-shaped vertical plate 83. Arc-shaped protective plate 9. Tension spring 10. Flange. Detailed Implementation

[0027] The present invention will be further described below with reference to embodiments:

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0029] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this invention, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] like Figures 1-7 As shown, the water supply and drainage pipe connection structure of the present invention includes two water pipes 1, the ends of which are provided with internal threads, and the ends of both water pipes 1 are threadedly connected with connectors 2.

[0031] The connector 2 has a first sealing groove on its side near the water pipe 1, and the water pipe 1 extends into the first sealing groove. A first waterproof sealing ring is also provided inside the first sealing groove. An intermediate pipe 3 is provided between the two connectors 2. Second sealing grooves are provided on the opposite sides of the two connectors 2, and both ends of the intermediate pipe 3 are respectively located in the two second sealing grooves. A second waterproof sealing ring is also provided between the intermediate pipe 3 and the second sealing grooves. The intermediate pipe 3 abuts against the two connectors 2 respectively. An inclined pressure ring 4 is fitted onto the ends of the two water pipes 1. The end of the inclined pressure ring 4 near the end of the water pipe 1 is higher, and the side of the inclined pressure ring 4 abuts against the connector 2.

[0032] The water supply and drainage pipe connection structure of the present invention also includes two connecting sleeves 5, a fixing mechanism 6, two pressing mechanisms 7, multiple protective covers 8, and tension springs 9.

[0033] The two connecting sleeves 5 are respectively fitted onto the two water pipes 1, and the two connecting sleeves 5 are symmetrically distributed about the middle of the two water pipes 1. The inclined pressure ring 4 is located inside the connecting sleeve 5. The opposite ends of the two connecting sleeves 5 are provided with outwardly protruding flanges 10.

[0034] The fixing mechanism 6 is connected between the two connecting sleeves 5 and is connected to the flange 10 to fix the two connecting sleeves 5.

[0035] like Figures 1-2 As shown, the fixing mechanism 6 includes a mounting base 61 fixedly connected to one of the connecting sleeves 5. A pull rod 62 is rotatably connected inside the mounting base 61. A notch is opened on the flange 10 of the other connecting sleeve 5. One end of the pull rod 62 is located in the notch, and a nut 63 is threadedly connected to one end of the pull rod 62. The nut 63 abuts against the side of the connecting sleeve 5. The number of fixing mechanisms 6 is not less than two, and the multiple fixing mechanisms 6 are evenly distributed around the axis of the connecting sleeve 5.

[0036] During pre-tightening, rotate the pull rod 62 into the notch on the other connecting sleeve 5 and rotate the nut 63 so that the nut 63 abuts against the flange 10. Then, the drive mechanism 75 drives the rotating frame 71 to rotate, so that the clamping wheel 74 on the clamping rod 73 clamps the inclined pressure ring 4. Finally, tighten the nut 63 so that the two connecting sleeves 5 clamp the intermediate tube 3.

[0037] The two clamping mechanisms 7 are respectively connected to the two connecting sleeves 5. The clamping mechanism 7 includes a rotating frame 71, a guide cylinder 72, a clamping rod 73, a clamping wheel 74, and a driving mechanism 75. The clamping mechanism 7 is used to press the inclined pressure ring 4 towards the center of the two water pipes 1, so that the two connecting sleeves 5 can clamp the middle pipe 3, improve its sealing performance, and prevent water leakage from the middle pipe 3. The clamping mechanism 7 can be applied to water pipes 1 of different diameters within a certain range. Only the appropriate connector 2 and inclined pressure ring 4 need to be replaced according to the diameter of the water pipe 1, without replacing them all, which can save production costs.

[0038] The rotating frame 71 is rotatably connected to the inside of the connecting sleeve 5. The guide cylinder 72 is rotatably connected to the rotating frame 71, and the guide cylinder 72 is a square cylinder. The clamping rod 73 is inserted into the inside of the guide cylinder 72, and one end of the clamping rod 73 is rotatably connected to the connecting sleeve 5. The other end of the clamping rod 73 is rotatably connected to a clamping wheel 74. When clamping, the clamping wheel 74 can abut against the surface of the inclined pressure ring 4. When releasing, the clamping wheel 74 separates from the inclined pressure ring 4. The driving mechanism 75 is connected to the connecting sleeve 5, and one end of the driving mechanism 75 is connected to the rotating frame 71. The driving mechanism 75 is used to drive the rotating frame 71 to rotate.

[0039] During assembly, first, the connecting sleeve 5 and the inclined pressure ring 4 are put on the water pipe 1 in sequence, then the connector 2 is screwed into the water pipe 1 to connect the two water pipes 1, and the intermediate pipe 3 is clamped between the two water pipes 1. The two connecting sleeves 5 are pre-fixed by the fixing mechanism 6. Then, the rotating frame 71 is driven to rotate by the driving mechanism 75. The rotating frame 71 drives the guide cylinder 72 to rotate. The guide cylinder 72 drives the clamping rod 73 to swing, so that the clamping wheel 74 on the clamping rod 73 can clamp the inclined pressure ring 4 towards the connector 2. Then, the two connecting sleeves 5 are brought closer to each other by the fixing mechanism 6 to further fix the connecting sleeves 5. Thus, the two connectors 2 can clamp the intermediate pipe 3 to prevent water leakage from the intermediate pipe 3.

[0040] like Figure 4 As shown, the drive mechanism 75 includes a first rotating block 751 rotatably connected to the connecting sleeve 5 and a second rotating block 752 rotatably connected to the rotating frame 71. A screw 753 is rotatably connected to the first rotating block 751. One end of the screw 753 is threadedly connected to the second rotating block 752, and the other end of the screw 753 extends out of the connecting sleeve 5. A sliding groove is provided on the connecting sleeve 5 for the screw 753 to move.

[0041] When clamping, turn the handle, the handle drives the screw 753 to rotate, the screw 753 drives the second rotating block 752 to move, the second rotating block 752 drives the rotating frame 71 to rotate, thereby realizing the clamping mechanism 7 clamping the inclined pressure ring 4.

[0042] like Figure 5 As shown, there are at least two guide cylinders 72, which are evenly distributed around the axis of the rotating frame 71. The number of clamping rods 73 is the same as the number of guide cylinders 72. This allows the clamping mechanism 7 to press the inclined pressure ring 4 from multiple angles, thereby improving the clamping effect of the inclined pressure ring 4.

[0043] like Figure 5 As shown, the clamping wheel 74 has an isosceles trapezoidal cross-section, and the inclined plane angle of the clamping wheel 74 is the same as that of the inclined pressure ring 4. This allows the clamping wheel 74 and the inclined pressure ring 4 to be properly matched, thereby increasing the contact area between them, increasing the friction between them, preventing the clamping wheel 74 from slipping, and improving the clamping effect.

[0044] like Figure 3 and Figure 7 As shown, the plurality of protective covers 8 are slidably connected to the two connecting sleeves 5 respectively, and a tension spring 9 is provided between the protective cover 8 and the connecting sleeve 5. The protective cover 8 is used to protect the space between the two connecting sleeves 5, that is, to protect the intermediate tube 3.

[0045] Specifically, the protective cover 8 consists of a sliding plate 81, an arc-shaped vertical plate 82, and an arc-shaped protective plate 83. The sliding plate 81 is slidably connected to the flange 10. A tension spring 9 is disposed between the sliding plate 81 and the flange 10. One end of the sliding plate 81 is fixedly connected to the arc-shaped vertical plate 82. The side of the arc-shaped vertical plate 82 near the water pipe 1 it is connected to is fixedly connected to the arc-shaped protective plate 83. The arc-shaped protective plate 83 is slidably connected inside the connecting sleeve 5. The outer diameter of the arc-shaped protective plate 83 is the same as the inner diameter of the connecting sleeve 5. Multiple arc-shaped protective plates 83 located on the same connecting sleeve 5 can form a closed ring. The number of protective covers 8 located on the same connecting sleeve 5 is not less than 2. In this embodiment, it is preferred to have 4, that is, the angle of the arc-shaped protective plate 83 is 90°.

[0046] In use, first, put the connecting sleeve 5 and the inclined pressure ring 4 onto the water pipe 1 in sequence. Then, wrap one end of the connector 2 with waterproof tape and screw the connector 2 into the water pipe 1, so that the water pipe 1 is finally inserted into the first sealing groove. First, set the first waterproof sealing ring in the first sealing groove. Place the intermediate pipe 3 between the two water pipes 1. Install the second waterproof sealing ring in the second sealing groove on the two connectors 2. Then, connect the two water pipes 1 together, so that the intermediate pipe 3 is inserted into the two second sealing grooves. Rotate the pull rod 62 to insert one end of the pull rod 62 into the notch on the other connecting sleeve 5. Rotate nut 63 to pre-fix the two connecting sleeves 5. Rotate the handles on the two clamping mechanisms 7 respectively. The handles drive the screw 753 to rotate. The screw 753 drives the second rotating block 752 to move. The second rotating block 752 drives the rotating frame 71 to rotate. The rotating frame 71 drives the guide cylinder 72 to rotate. Since one end of the clamping rod 73 is rotatably connected to the connecting sleeve 5, the guide cylinder 72 drives the clamping rod 73 to swing, so that the clamping wheel 74 on the clamping rod 73 can clamp the inclined pressure ring 4 towards the connecting head 2. Then tighten nut 63 again to make the two connecting sleeves 5 close to each other. When the two connecting sleeves 5 are brought closer together, the clamping wheel 74 will drive the two inclined pressure rings 4 to move closer together. The two inclined pressure rings 4 will then drive the two connectors 2 to move closer together, thus clamping the intermediate pipe 3 and preventing water leakage from the intermediate pipe 3. After the two connecting sleeves 5 are joined together, the protective covers 8 on both sides will abut together, thus sealing the intermediate pipe 3 and preventing foreign objects from entering the connecting sleeves 5 and causing damage to the intermediate pipe 3. Compared with flange connection, this connection method increases the airtightness of the water pipe 1 connection by adding the intermediate pipe 3, making the device less prone to leakage. Compared with the connection method using waterproof glue, this device is connected by tie rod 62 and nut 63, which has a longer service life. Compared with the connection method using welding, the connection of this device is easier to operate because welding operations require workers to hold special operation qualification certificates, which are not easy to obtain. In actual construction, there are few people who can perform welding operations. Using welding connection method will greatly increase the difficulty of operation and reduce the progress of the project. This device is simple to operate, and with a little practice, workers can quickly master it, which can greatly improve the efficiency of operation.

[0047] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A water supply and drainage pipe connection structure, characterized in that: It includes two water pipes (1), each end of which is connected to a connector (2); an intermediate pipe (3) is provided between the two connectors (2), and the intermediate pipe (3) abuts against the two connectors (2); each end of the two water pipes (1) is fitted with a slanted pressure ring (4), and the side of the slanted pressure ring (4) abuts against the connector (2); It also includes two connecting sleeves (5), a fixing mechanism (6), two pressing mechanisms (7), multiple protective covers (8), and a tension spring (9); wherein, the two connecting sleeves (5) are respectively fitted onto two water pipes (1), the two connecting sleeves (5) are symmetrically distributed about the middle of the two water pipes (1), and the inclined pressure ring (4) is located inside the connecting sleeve (5); the two connecting sleeves (5) are provided with an outwardly protruding flange (10) at opposite ends; the fixing mechanism (6) is connected between the two connecting sleeves (5) and is connected to the flange (10) to fix the two connecting sleeves (5); the two pressing mechanisms (7) are respectively connected to the two connecting sleeves (5); the multiple protective covers (8) are respectively slidably connected to the two connecting sleeves (5), and a tension spring (9) is provided between the protective cover (8) and the connecting sleeve (5), the protective cover (8) is used to protect the space between the two connecting sleeves (5), that is, to protect the intermediate pipe (3); The clamping mechanism (7) includes a rotating frame (71), a guide cylinder (72), a clamping rod (73), a clamping wheel (74), and a drive mechanism (75). The clamping mechanism (7) is used to press the inclined pressure ring (4) against the two water pipes 1. The center direction is pressed; the rotating frame (71) is rotatably connected to the inside of the connecting sleeve (5), the guide cylinder (72) is rotatably connected to the rotating frame (71), the clamping rod (73) is inserted into the inside of the guide cylinder (72), and one end of the clamping rod (73) is rotatably connected to the connecting sleeve (5), and the other end of the clamping rod (73) is rotatably connected to the clamping wheel (74). When clamping, the clamping wheel (74) can abut against the surface of the inclined pressure ring (4). When releasing, the clamping wheel (74) separates from the inclined pressure ring (4). The driving mechanism (75) is connected to the connecting sleeve (5), and one end of the driving mechanism (75) is connected to the rotating frame (71). The driving mechanism (75) is used to drive the rotating frame (71) to rotate.

2. The water supply and drainage pipe connection structure according to claim 1, characterized in that: The ends of the two water pipes (1) are provided with internal threads and are threadedly connected to the connector (2).

3. The water supply and drainage pipe connection structure according to claim 1, characterized in that: The connector (2) has a first sealing groove on the side near the water pipe (1), the water pipe (1) extends into the first sealing groove, and a first waterproof sealing ring is also provided inside the first sealing groove; the two connectors (2) have a second sealing groove on their opposite sides, the two ends of the middle pipe (3) are respectively in the two second sealing grooves, and a second waterproof sealing ring is also provided between the middle pipe (3) and the second sealing groove.

4. The water supply and drainage pipe connection structure according to claim 1, characterized in that: The fixing mechanism (6) includes a mounting base (61) fixedly connected to one of the connecting sleeves (5), a pull rod (62) is rotatably connected inside the mounting base (61), and a notch is opened on the flange (10) of the other connecting sleeve (5). One end of the pull rod (62) is located in the notch, and a nut (63) is threadedly connected to one end of the pull rod (62). The nut (63) abuts against the side of the connecting sleeve (5). The number of fixing mechanisms (6) is not less than 2, and multiple fixing mechanisms (6) are evenly distributed around the axis of the connecting sleeve (5).

5. The water supply and drainage pipe connection structure according to claim 1, characterized in that: The drive mechanism (75) includes a first rotating block (751) rotatably connected to the connecting sleeve (5) and a second rotating block (752) rotatably connected to the rotating frame (71). A screw (753) is rotatably connected to the first rotating block (751). One end of the screw (753) is threadedly connected to the second rotating block (752), and the other end of the screw (753) extends out of the connecting sleeve (5). A sliding groove for the screw (753) to move is provided on the connecting sleeve (5).

6. The water supply and drainage pipe connection structure according to claim 1, characterized in that: The number of guide cylinders (72) is not less than 2. Multiple guide cylinders (72) are evenly distributed around the axis of the rotating frame (71). The number of clamping rods (73) is the same as the number of guide cylinders (72), so that the pressing mechanism (7) can press the inclined pressure ring (4) from multiple angles.

7. The water supply and drainage pipe connection structure according to claim 1, characterized in that: The clamping wheel (74) has an isosceles trapezoidal cross section. The inclined angle of the clamping wheel (74) is the same as that of the inclined pressure ring (4), so that the clamping wheel (74) and the inclined pressure ring (4) are compatible.

8. The water supply and drainage pipe connection structure according to claim 1, characterized in that: The protective cover (8) is composed of a sliding plate (81), an arc-shaped vertical plate (82), and an arc-shaped protective plate (83). The sliding plate (81) is slidably connected to the flange (10), and a tension spring (9) is set between the sliding plate (81) and the flange (10). One end of the sliding plate (81) is fixedly connected to the arc-shaped vertical plate (82). The side of the arc-shaped vertical plate (82) near the water pipe (1) it is connected to is fixedly connected to the arc-shaped protective plate (83). The arc-shaped protective plate (83) is slidably connected inside the connecting sleeve (5). The outer diameter of the arc-shaped protective plate (83) is the same as the inner diameter of the connecting sleeve (5). Multiple arc-shaped protective plates (83) located on the same connecting sleeve (5) can form a closed ring. The number of protective covers (8) located on the same connecting sleeve (5) is not less than 2.

9. A water supply and drainage pipe connection structure according to claim 8, characterized in that: The number of protective covers (8) located on the same connecting sleeve (5) is 4, that is, the angle of the arc-shaped protective plate (83) is 90°.

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