Waterproof structure for transforming water supply and drainage pipeline in kitchen and toilet of old community

Abstract

The utility model relates to the technical field of pipeline reconstruction, and discloses an old community kitchen and toilet water supply and drainage pipeline reconstruction waterproof structure which comprises a first pipeline and a second pipeline, a sealing ring is arranged between the first pipeline and the second pipeline, and the outer wall of the first pipeline and the outer wall of the second pipeline are both fixedly connected with fixing rings. The inner wall of the first pipeline and the inner wall of the second pipeline are fixedly connected with lining layers, the outer wall of the first pipeline is slidably connected with a sleeve, the top of the inner wall of the sleeve is attached to the top of the outer wall of the fixing ring on the upper side, and the bottom of the sleeve is rotationally connected with a fastening ring. In the utility model, the sleeve is matched with the threaded connection of the fastening ring and the sleeve and the rotary connection of the fastening ring and the sleeve, so that the pipeline I and the pipeline II can be conveniently close to each other and extrude the sealing ring to realize sealing, the connection process is simplified, complicated tools are not needed, and the mounting efficiency is greatly improved; the problem of low installation efficiency caused by a complex connection structure in the prior art is solved.

Description

A waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old residential communities Technical Field

[0001] This utility model relates to the field of pipeline renovation technology, and in particular to a waterproof structure for renovating water supply and drainage pipes in kitchens and bathrooms of old communities. Background Technology

[0002] Water is an essential commodity for daily life. We cannot do without water for washing vegetables, cooking, and laundry. In some old residential areas, due to years of disrepair, the water supply and drainage pipes are corroded, which can lead to leaks, blockages, and even backflow of dirty water, seriously affecting the quality of life of residents. Therefore, the renovation of water supply and drainage pipes is one of the key projects in the renovation of old residential areas. When renovating water supply and drainage pipes, it is necessary to remove the old pipes and then reinstall new pipes. When connecting the pipes, a waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old residential areas is required.

[0003] Traditional connection structures mainly rely on flange bolt connections and socket bonding. Flange bolt connections achieve pipe docking by fastening mating flanges and bolts. The advantage is high connection strength, but the disadvantage is that installation requires multiple people and the gasket is prone to aging. Socket bonding uses PVC adhesive to connect plastic pipes. Construction is simple, but it is not detachable and has poor temperature resistance. Existing technology provides clamp connections, which use rubber sealing rings and stainless steel clamps for quick connection. Installation is quick, but long-term use can lead to loosening and leakage. Therefore, a waterproof structure with good sealing performance and easy installation is needed. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old communities, aiming to improve the problems of low installation efficiency and poor sealing performance caused by complex connection structures in the existing technology.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old communities, including pipe one and pipe two. A sealing ring is provided between adjacent pipe one and pipe two. A fixing ring is fixedly connected to the outer wall of both pipe one and pipe two. An inner lining layer is fixedly connected to the inner wall of both pipe one and pipe two. A sleeve is slidably connected to the outer wall of pipe one. The top of the inner wall of the sleeve is fitted with the top of the outer wall of the upper fixing ring. A fastening ring is rotatably connected to the bottom of the sleeve. A sleeve is slidably connected to the outer wall of pipe two. The bottom of the inner wall of the sleeve is fitted with the bottom of the outer wall of the bottom fixing ring. The fastening ring is threadedly connected to the sleeve. A backlash mechanism is provided on the outer wall of pipe two.

[0006] Through the above technical solution: when pipe one and pipe two approach and compress each other, the sealing ring undergoes radial deformation under external force, tightly fitting between the two pipes, thus constructing a sealing barrier to effectively prevent water leakage and ensure waterproof performance. The fixing rings are firmly connected to the outer walls of pipe one and pipe two, playing a crucial role in positioning and connection in the entire structure. Working in conjunction with the sleeve and bushing, they provide a precise fitting position, effectively ensuring the installation accuracy and stability of the entire structure, making the connection of each component more stable and reliable. The inner lining layer is fixed to the inner walls of pipe one and pipe two, significantly enhancing the corrosion resistance and wear resistance of the pipes, thereby extending their service life. Simultaneously, its smooth inner wall helps maintain water flow. Smooth flow, reduced water flow resistance, and efficient water supply and drainage. The top of the inner wall of the sleeve fits tightly against the top of the outer wall of the upper fixing ring. This structural design allows the sleeve to move downwards in subsequent operations, stably driving the first pipe to move downwards synchronously. This design greatly simplifies the installation and positioning process of the first pipe, reduces installation difficulty, and improves installation efficiency. The fastening ring is set at the bottom of the sleeve in a rotating connection and is threaded to the sleeve. When the fastening ring is rotated, based on its threaded engagement with the sleeve, the fastening ring will gradually descend and synchronously drive the sleeve downwards, causing the first pipe and the second pipe to move closer to each other. In this process, the connection between the first pipe and the second pipe is achieved, while the sealing ring is squeezed to fully exert its sealing function.

[0007] As a further description of the above technical solution:

[0008] The anti-reverse mechanism includes two strip blocks, which are respectively disposed on the left and right sides of the outer wall of the sleeve. The bottom left and right sides of the sleeve are provided with slots. A locking block (first) is fixedly connected to an adjacent bottom side of each of the two strip blocks, and the two locking blocks (first) engage with their respective slots. The top of the outer wall of each of the two strip blocks is provided with a groove. A sliding rod is slidably connected to the inner wall of each of the two grooves. A threaded sleeve is fixedly connected to the bottom of the inner wall of each of the two grooves. Bolts are rotatably connected to the inner walls of each of the two sliding rods, and the two bolts are threadedly connected to their respective threaded sleeves. A locking block (second) is fixedly connected to an adjacent top side of each of the two sliding rods. An annular groove is provided at the top of the sleeve, and the two locking blocks (second) are slidably connected to the annular groove.

[0009] Through the above technical solution: the locking block 1, which is fixedly connected to the bottom of the slot and adjacent to the bottom of the strip block, works closely together. The locking block 1 and the locking slot engage with each other, thereby initially stabilizing the strip block on the sleeve, laying a stable support foundation for subsequent operations, and ensuring that the strip block will not shift arbitrarily during use. The groove opened at the top of the outer wall of the strip block provides a sliding track for the slide rod, which can slide up and down in the groove to adjust its position. At the same time, the threaded sleeve fixedly connected to the bottom of the inner wall of the groove cooperates with the bolt rotatably connected to the inner wall of the slide rod. When the bolt is rotated, based on the characteristics of the threaded connection, the bolt will drive the slide rod to move up and down along the predetermined track in the groove, thereby achieving precise control of the position of the slide rod to meet different actual use needs. In addition, the locking block 2 is slidably connected to the annular groove opened at the top of the sleeve. When the slide rod moves downward by the bolt, the locking block 2 moves synchronously in the annular groove and applies a downward force to the sleeve, thereby tightly locking the sleeve and effectively preventing the sleeve from loosening upward due to external vibrations and other factors, thus ensuring the stability of the pipe connection structure.

[0010] As a further description of the above technical solution:

[0011] An information plate is provided on the front side of the outer wall of the fastening ring. Screws are threaded to the four corners of the outer wall of the information plate, and the rear ends of the screws are threaded to the fastening ring.

[0012] The above technical solution allows the information board to form a threaded connection with the fastening rings at its four corners. This connection method enables the information board to record relevant installation or product information such as installation steps and product models. At the same time, based on the characteristics of the threaded connection, it is easy to disassemble and replace the information board when it needs to be updated or maintained.

[0013] As a further description of the above technical solution:

[0014] Multiple anti-slip strips are fixedly connected to the outer wall of the fastening ring, and the surfaces of the multiple anti-slip strips are all treated with anti-slip coating.

[0015] Through the above technical solution: the anti-slip strip increases the surface roughness, thereby increasing the friction between the anti-slip strip and the object being operated, making it easier for the user to rotate the fastening ring.

[0016] As a further description of the above technical solution:

[0017] The inner walls of the two grooves are fixedly connected to sliders on the front and back sides, and the outer walls of the two slide rods are provided with slide grooves on the front and back sides. The multiple sliders are slidably connected to the corresponding slide grooves respectively.

[0018] The above technical solution involves a sliding fit between the slider and the outer wall groove of the slide rod, which guides the movement of the slide rod within the groove and ensures stable up-and-down sliding.

[0019] As a further description of the above technical solution:

[0020] Multiple scale grooves are provided on the upper and lower sides of the front end of the outer wall of the two slide rods, and the spacing between adjacent scale grooves is equal.

[0021] The above technical solution features equal spacing between scale grooves, which allows for a direct display of the sliding distance and position of the slider, thus providing assistance for precise adjustment.

[0022] As a further description of the above technical solution:

[0023] Both bolts have hexagonal holes at their tops, and the inner walls of both hexagonal holes are treated with anti-slip material.

[0024] The above technical solution involves an anti-slip treatment on the inner wall of the hexagonal hole at the top of the bolt, which facilitates the stable application of force to rotate the bolt with a hexagonal tool, thereby controlling the position of the sliding rod.

[0025] As a further description of the above technical solution:

[0026] The outer walls of the screws are provided with cross grooves at their front ends, and the inner walls of the cross grooves are treated with wear-resistant materials.

[0027] The above technical solution involves applying a wear-resistant treatment to the inner wall of the cross groove at the front end of the screw's outer wall, reducing frictional wear between the screwdriver and the cross groove, and ensuring smooth disassembly and assembly of the information board.

[0028] This utility model has the following beneficial effects:

[0029] In this invention, the top of the inner wall of the sleeve fits against the top of the outer wall of the upper fixing ring, and the bottom of the inner wall of the sleeve fits against the bottom of the inner wall of the lower fixing ring. Combined with the threaded connection between the fastening ring and the sleeve, and the rotatable connection between the fastening ring and the sleeve, pipe one and pipe two can easily approach and compress the sealing ring to achieve a seal. This design simplifies the connection process, eliminates the need for complex tools, greatly improves installation efficiency, and addresses the problem of low installation efficiency caused by the complex connection structure of existing technologies. At the same time, relying on the sealing ring to deform under pressure to seal, it effectively solves the problem of poor sealing performance in existing technologies.

[0030] In this invention, the position of the strip block is initially fixed by the engagement of the bottom locking block 1 with the bottom locking groove of the sleeve. Then, by utilizing the cooperation between the top locking block 2 of the sliding rod and the annular groove at the top of the sleeve, as well as the threaded connection between the bolt and the threaded sleeve, rotating the bolt drives the sliding rod to move downward, so that the locking block 2 applies force in the annular groove, locking the sleeve and the sleeve, preventing the sleeve from moving upward due to vibration, and ensuring the stability and sealing of the pipeline connection. Attached Figure Description

[0031] Figure 1 is a perspective view of a waterproof structure for the renovation of water supply and drainage pipes in the kitchen and bathroom of an old community, as proposed in this utility model.

[0032] Figure 2 is a front view of a waterproof structure for the renovation of water supply and drainage pipes in the kitchen and bathroom of an old community, as proposed in this utility model.

[0033] Figure 3 is a partial structural breakdown diagram of a waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old communities proposed in this utility model.

[0034] Figure 4 is a schematic diagram of the slot for a waterproof structure for the renovation of water supply and drainage pipes in the kitchen and bathroom of an old community, as proposed in this utility model.

[0035] Figure 5 is a schematic diagram of the anti-reverse mechanism of a waterproof structure for the renovation of water supply and drainage pipes in the kitchen and bathroom of an old community proposed in this utility model.

[0036] Figure 6 is a cross-sectional view of a waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old communities proposed in this utility model.

[0037] Legend:

[0038] 1. Pipeline 1; 2. Anti-reverse mechanism; 201. Strip block; 202. Slot; 203. Block 1; 204. Groove; 205. Slide rod; 206. Threaded sleeve; 207. Bolt; 208. Block 2; 209. Annular groove; 3. Pipeline 2; 4. Sealing ring; 5. Fixing ring; 6. Inner lining; 7. Sleeve; 8. Fastening ring; 9. Sleeve; 10. Information board; 11. Screw; 12. Anti-slip strip; 13. Slider; 14. Slide groove; 15. Scale groove; 16. Hexagonal hole; 17. Cross groove. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Referring to Figures 2, 3, and 6, this utility model provides an embodiment of a waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old residential communities. The structure includes pipe 1 and pipe 3, providing a specific transmission path for water flow. A sealing ring 4 is installed between adjacent pipes 1 and 3 to fill the gap between them when they are connected, preventing water leakage. Fixing rings 5 ​​are fixedly connected to the outer walls of both pipes 1 and 3, enhancing the stability of the connection between the pipes and other components and providing accurate positioning points for the sleeve 7 and the bushing 9. Inner linings 6 are fixedly connected to the inner walls of both pipes 1 and 3, protecting the inner walls, enhancing the corrosion resistance and wear resistance of the pipes, and extending their service life. A sleeve 7 is slidably connected to the outer wall of pipe 1, sliding on the outer wall of pipe 1. Its movement causes pipe 1 to adjust its position so as to connect with pipe 2. 3. Connection: The top of the inner wall of sleeve 7 fits against the top of the outer wall of the upper fixing ring 5, allowing sleeve 7 to stably drive pipe 1 during movement and ensuring the accuracy of the connection process. A fastening ring 8 is rotatably connected to the bottom of sleeve 7, which connects to sleeve 9 by rotation, thereby adjusting the distance between pipe 1 and pipe 2 3. Sleeve 9 is slidably connected to the outer wall of pipe 2 3, and slides on the outer wall of pipe 2 3 to prepare for connection with fastening ring 8 and docking with pipe 1. The bottom of the inner wall of sleeve 9 fits against the bottom of the outer wall of bottom fixing ring 5. Fastening ring 8 is threadedly connected to sleeve 9. Rotating fastening ring 8 can precisely control the proximity of pipe 1 and pipe 2 3 to achieve a sealed connection. A backstop mechanism 2 is provided on the outer wall of pipe 2 3 to prevent sleeve 7 from loosening and moving upward due to external vibrations or other factors after the pipe connection is completed, ensuring the stability of the entire pipe connection structure.

[0041] Specifically, pipe 1 and pipe 3 are the main channels for water flow. Sealing ring 4 is installed at their adjacent locations. When pipe 1 and pipe 3 approach and are compressed, sealing ring 4 undergoes radial deformation, tightly fitting between the two pipes to form a sealing barrier, effectively preventing water leakage and ensuring waterproof performance. Fixing ring 5 is fixed to the outer walls of pipe 1 and pipe 3 respectively, playing a crucial role in positioning and connection. It cooperates with sleeve 7 and sleeve 9 to provide accurate fitting positions, ensuring the installation accuracy and stability of the entire structure. The inner lining layer 6 is fixed to the inner walls of pipe 1 and pipe 3, which can increase... The strong corrosion resistance and wear resistance of the pipe extend its service life and also help maintain smooth water flow. The top of the inner wall of the sleeve 7 fits against the top of the outer wall of the upper fixing ring 5, so that in subsequent operations, the downward movement of the sleeve 7 can stably drive the pipe 1 to move down synchronously, simplifying the installation and positioning process of the pipe 1. The fastening ring 8 is rotatably connected to the bottom of the sleeve 7 and threadedly connected to the sleeve 9. When the fastening ring 8 is rotated, due to its threaded relationship with the sleeve 9, the fastening ring 8 will descend and drive the sleeve 7 downward together, causing the pipe 1 to move closer to the pipe 2 3, realizing the connection between the two and the compression sealing of the sealing ring 4.

[0042] Referring to Figures 1, 4, and 5, the anti-reverse mechanism 2 includes two strip blocks 201, which are respectively disposed on the left and right sides of the outer wall of the sleeve 9. These strip blocks 201 serve as the basic components of the anti-reverse mechanism 2, providing a support structure for the subsequent installation and operation of other components. Slots 202 are provided on both the left and right sides of the bottom of the sleeve 9, providing suitable engagement positions for the locking blocks 203 to initially fix the strip blocks 201. Locking blocks 203 are fixedly connected to adjacent bottom sides of the two strip blocks 201, and each locking block 203 engages with its corresponding slot 202. Through the engagement of the locking blocks 203 with the slots 202, the strip blocks 201 are securely installed on the sleeve 9, ensuring the basic stability of the anti-reverse mechanism 2. Grooves 204 are provided on the top of the outer wall of each of the two strip blocks 201, and sliding rods 205 are slidably connected to the inner walls of each groove 204. The sliding rods 205 are located within the grooves 204. The wall slides, and its up and down movement adjusts the anti-reverse action on the sleeve 7. The bottom of the inner wall of each of the two grooves 204 is fixedly connected with a threaded sleeve 206, which cooperates with the bolt 207 to achieve precise control of the movement position of the slide rod 205. The inner wall of each of the two slide rods 205 is rotatably connected with a bolt 207. By rotating the bolt 207, the slide rod 205 is driven to move up and down by the thread transmission between the bolt and the threaded sleeve 206. The two bolts 207 are respectively threadedly connected to the corresponding threaded sleeves 206. The top adjacent sides of each of the two slide rods 205 are fixedly connected with a second locking block 208. The two second locking blocks 208 are respectively slidably connected to the annular groove 209. When the slide rod 205 moves, the second locking block 208 moves accordingly to cooperate with the annular groove 209 on the sleeve 7 to stop and limit the sleeve 7. The top of the sleeve 7 is provided with an annular groove 209.

[0043] Specifically, the slot 202 and the locking block 203, which is fixedly connected to the bottom adjacent side of the strip block 201, fit tightly together. Through the engagement of the locking block 203 and the slot 202, the strip block 201 is initially fixed on the sleeve 9, providing a stable support foundation for subsequent operations and ensuring that the strip block 201 will not move arbitrarily during use. The groove 204 opened at the top of the outer wall of the strip block 201 provides a sliding track for the slide rod 205. The slide rod 205 can slide up and down in the groove 204 to adjust its position. The threaded sleeve 206 fixedly connected to the bottom of the inner wall of the groove 204 is rotatably connected to the inner wall of the slide rod 205. Bolt 207 works in conjunction with each other. When bolt 207 is rotated, due to the characteristics of the threaded connection, bolt 207 will drive slide rod 205 to move up and down along the track in groove 204, so that the position of slide rod 205 can be precisely controlled to meet different usage requirements. Clamp 208 is slidably connected to the annular groove 209 opened on the top of sleeve 7. When slide rod 205 is driven to move downward by bolt 207, clamp 208 moves synchronously in annular groove 209 and applies downward force, thereby tightly clamping sleeve 7, effectively preventing sleeve 7 from loosening upward due to external vibration and other factors, and ensuring the stability of the pipe connection structure.

[0044] Referring to Figures 1, 2, and 3, an information plate 10 is provided on the front side of the outer wall of the fastening ring 8 for recording relevant installation or product information. Screws 11 are threadedly connected to the four corners of the outer wall of the information plate 10. The rear ends of the multiple screws 11 are threadedly connected to the fastening ring 8 for easy disassembly of the information plate 10. Multiple anti-slip strips 12 are fixedly connected to the outer wall of the fastening ring 8. The surfaces of the multiple anti-slip strips 12 are treated with anti-slip material to prevent hand slippage during rotation. Slider blocks 13 are fixedly connected to the front and rear sides of the inner walls of the two grooves 204. Slide grooves 14 are opened on the front and rear sides of the outer walls of the two slide rods 205. Multiple sliders 13 are slidably connected to the corresponding slide grooves 14 to facilitate the sliding action of the slide rods 205.

[0045] Specifically, the information plate 10 on the front side of the outer wall of the fastening ring 8 is threadedly connected to the fastening ring 8 by screws 11 at the four corners. It can record relevant installation or product information and is easy to disassemble and replace. The anti-slip strips 12 around the outer wall of the fastening ring 8 are treated with anti-slip to increase friction and facilitate the rotation of the fastening ring 8. The slider 13 on the inner wall of the groove 204 is slidably connected to the sliding groove 14 on the outer wall of the slide rod 205, which guides the movement of the slide rod 205 in the groove 204 and ensures its stable up and down sliding.

[0046] Referring to Figures 1, 3, and 5, multiple scale grooves 15 are provided on the upper and lower sides of the front end of the outer wall of the two slide rods 205. The spacing between adjacent scale grooves 15 is equal, which is used to intuitively judge the movement distance and position of the slide rods 205 and assist in precise adjustment. Hexagonal holes 16 are provided on the top of the two bolts 207 to facilitate operation with a hexagonal wrench. The inner walls of the two hexagonal holes 16 are treated with anti-slip treatment. Cross grooves 17 are provided on the front end of the outer wall of the multiple screws 11. The inner walls of the multiple cross grooves 17 are treated with wear-resistant treatment to reduce friction wear between the screwdriver and the cross grooves 17.

[0047] Specifically, the equal spacing of the graduated grooves 15 allows for intuitive judgment of the movement distance and position of the slide bar 205, assisting in precise adjustment. The inner wall of the hexagonal hole 16 at the top of the bolt 207 is treated with anti-slip material, making it easy to use a hexagonal tool to apply force stably to rotate the bolt 207, thereby controlling the position of the slide bar 205. The inner wall of the cross groove 17 at the front end of the outer wall of the screw 11 is treated with wear-resistant material, which can reduce friction wear between the screwdriver and the cross groove 17, ensuring smooth operation when disassembling and installing the information sign 10.

[0048] Working principle: When connecting the pipes, first, sleeve 7 is inserted from the top of pipe 1. Utilizing the structural feature of the top of the inner wall of sleeve 7 fitting against the top of the outer wall of the upper fixing ring 5, sleeve 7 can stably drive pipe 1 downwards synchronously during subsequent downward movement. Then, sleeve 9 is inserted from the bottom of pipe 3 upwards, allowing the bottom of the inner wall of sleeve 9 to fit against the bottom of the inner wall of the lower fixing ring 5, preparing for the connection of pipe 3. Next, sealing ring 4 is placed on top of pipe 3. Then, the fastening ring 8 is rotated. Since the fastening ring 8 and sleeve 9 are threadedly connected, during rotation, the fastening ring 8 will not... As the fastening ring 8 descends, and because the fastening ring 8 and the sleeve 7 are rotatably connected, the fastening ring 8 will drive the sleeve 7 to move downward together, causing pipe 1 and pipe 2 to move closer and closer. When they get close enough, they will compress the sealing ring 4, causing it to deform radially and fit tightly between pipe 1 and pipe 2, forming a good sealing effect. This method does not require complicated tools or cumbersome procedures, greatly improving installation efficiency. At the same time, the sealing is achieved by the pressure deformation of the sealing ring 4, which effectively solves the problem of poor sealing performance in the existing technology and provides a reliable waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old communities.

[0049] After pipe 1 and pipe 2 are connected, to prevent the sleeve 7 from loosening and shifting upwards due to external vibrations, firstly, insert the locking blocks 203 at the bottom of the two strip blocks 201 into the corresponding locking grooves 202 on the left and right sides of the bottom of the sleeve 9. This initially fixes the position of the strip blocks 201 on the sleeve 9. Next, align the locking block 208 at the top of the slide rod 205 with the annular groove 209 at the top of the sleeve 7 and insert it. Then, move the slide rod 205 so that the bottom of the slide rod 205 is aligned with the groove 204 at the top of the outer wall of the strip block 201. Then, move the slide rod... Insert 205 into the corresponding groove 204. At this time, rotate the bolt 207. Since the bolt 207 and the threaded sleeve 206 fixedly connected to the bottom of the inner wall of the groove 204 are in a threaded connection relationship, as the bolt 207 rotates, it will drive the slide rod 205 to move downward along the inner wall of the groove 204. During the downward movement of the slide rod 205, the top locking block 208 will apply a downward force in the annular groove 209, thereby locking the sleeve 7 and the sleeve 9, effectively preventing the sleeve 7 from loosening upward due to external vibration, and ensuring the stability and sealing of the entire pipeline connection structure.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old residential communities, comprising pipe one (1) and pipe two (3), characterized in that: A sealing ring (4) is provided between adjacent pipes 1 (1) and 2 (3). A fixing ring (5) is fixedly connected to the outer wall of both pipe 1 (1) and 2 (3). An inner lining layer (6) is fixedly connected to the inner wall of both pipe 1 (1) and 2 (3). A sleeve (7) is slidably connected to the outer wall of pipe 1 (1). The top of the inner wall of the sleeve (7) is in contact with the top of the outer wall of the upper fixing ring (5). A fastening ring (8) is rotatably connected to the bottom of the sleeve (7). A sleeve (9) is slidably connected to the outer wall of 2 (3). The bottom of the inner wall of the sleeve (9) is in contact with the bottom of the outer wall of the bottom fixing ring (5). The fastening ring (8) is threadedly connected to the sleeve (9). A backstop mechanism (2) is provided on the outer wall of 2 (3).

2. The waterproof structure for renovating water supply and drainage pipes in kitchens and bathrooms of old communities according to claim 1, characterized in that: The anti-reverse mechanism (2) includes two strip blocks (201), which are respectively disposed on the left and right sides of the outer wall of the sleeve (9). The bottom left and right sides of the sleeve (9) are provided with slots (202). The bottom adjacent sides of the two strip blocks (201) are fixedly connected with a first locking block (203). The two first locking blocks (203) are respectively engaged with the corresponding slots (202). The top of the outer wall of the two strip blocks (201) is provided with a groove (204). The inner wall of the two grooves (204) is slidable. The slide rod (205) is dynamically connected. The bottom of the inner wall of each of the two grooves (204) is fixedly connected with a threaded sleeve (206). The inner wall of each of the two slide rods (205) is rotatably connected with a bolt (207). The two bolts (207) are threadedly connected to the corresponding threaded sleeves (206). The top of each of the two slide rods (205) is fixedly connected with a second locking block (208). The top of the sleeve (7) is provided with an annular groove (209). The two second locking blocks (208) are slidably connected to the annular groove (209).

3. The waterproof structure for renovating water supply and drainage pipes in kitchens and bathrooms of old communities according to claim 1, characterized in that: An information plate (10) is provided on the front side of the outer wall of the fastening ring (8). Screws (11) are threadedly connected to the four corners of the outer wall of the information plate (10). The rear ends of the screws (11) are threadedly connected to the fastening ring (8).

4. The waterproof structure for renovating water supply and drainage pipes in kitchens and bathrooms of old communities according to claim 1, characterized in that: Multiple anti-slip strips (12) are fixedly connected around the outer wall of the fastening ring (8), and the surfaces of the multiple anti-slip strips (12) are all treated with anti-slip treatment.

5. A waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old communities according to claim 2, characterized in that: The inner walls of the two grooves (204) are fixedly connected with sliders (13) on the front and back sides, and the outer walls of the two slide rods (205) are provided with slide grooves (14) on the front and back sides. The multiple sliders (13) are slidably connected to the corresponding slide grooves (14).

6. A waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old communities according to claim 2, characterized in that: Multiple scale grooves (15) are provided on the upper and lower sides of the outer front end of the two slide bars (205), and the spacing between adjacent scale grooves (15) is equal.

7. A waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old communities according to claim 2, characterized in that: Both bolts (207) have hexagonal holes (16) at their tops, and the inner walls of both hexagonal holes (16) are treated with anti-slip material.

8. A waterproof structure for the renovation of water supply and drainage pipes in kitchens and bathrooms of old communities according to claim 3, characterized in that: The outer front end of each of the screws (11) is provided with a cross groove (17), and the inner wall of each of the cross grooves (17) is treated with wear resistance.

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