Rapid connection structure for indoor water supply pipeline
By designing a water pipe connection structure including a sealing ring and a pressing assembly, the problem of insufficient fast connection and insufficient sealing in the prior art is solved, and the effect of rapid connection and disassembly is achieved.
Patent Information
- Application Number
- CN202422729760.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-09
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-11-09
AI Technical Summary
The existing indoor water pipe connection methods such as threaded connection, welding and flange connection are not fast enough, and there are problems such as insufficient sealing and inconvenient disassembly.
The structural design includes a first water pipe, a second water pipe, a connecting pipe, a first screw sleeve, a second screw sleeve, a first sealing ring, a second sealing ring, a first pressure resist assembly and a second pressure resist assembly are adopted. The combination of the sealing ring and the pressure resist assembly can achieve rapid connection and disassembly.
It realizes quick connection and disassembly of water pipes, has good sealing effect, avoids damage to the sealing ring, and improves the convenience and safety of connection.
Smart Images
Figure CN223203915U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of water pipe connection, and in particular to a quick connection structure for indoor water supply pipes. Background Art
[0002] Indoor water pipe connection methods include threaded connection, welding, flange connection, etc. In order to improve the sealing performance of threaded connections, it is usually necessary to apply some sealing materials such as lead oil, hemp, raw tape, sealant, etc. to the threaded connections. These materials can fill the thread gaps and increase the sealing effect, but this method is more cumbersome and cannot achieve quick connection. Water pipe welding requires the use of welding equipment, which is more cumbersome. It poses a fire hazard when constructed indoors, cannot achieve quick connection, and is not convenient for disassembly. The flange connection method requires locking multiple sets of bolts and nuts, and this connection method is not fast enough. Utility Model Content
[0003] In view of the problem that conventional threaded connection, welding and flange connection of water pipes are not fast enough, the present application proposes a quick connection structure for indoor water supply pipes. In order to achieve the purpose, the present application adopts the following technical solutions.
[0004] A quick-connect structure for indoor water supply pipes includes a first water pipe, a second water pipe, a connecting pipe, a first screw sleeve, a second screw sleeve, a first sealing ring, a second sealing ring, a first pressing assembly, and a second pressing assembly. The two ends of the connecting pipe are respectively wrapped around the first water pipe and the second water pipe.
[0005] One end of the first screw sleeve surrounds the first water pipe, and the other end is threadedly connected to the connecting pipe. The first sealing ring and the first pressing assembly are both installed in the first screw sleeve. The first sealing ring seamlessly presses against the first water pipe and the first screw sleeve. The first pressing assembly presses the first sealing ring against one end surface of the connecting pipe.
[0006] One end of the second screw sleeve surrounds the second water pipe, and the other end is threadedly connected to the connecting pipe. The second sealing ring and the second pressing assembly are both installed in the second screw sleeve. The second sealing ring seamlessly presses against the second water pipe and the second screw sleeve. The second pressing assembly presses the second sealing ring against the other end surface of the connecting pipe.
[0007] By adopting this technical solution, the first and second sealing rings seal the gaps between the connecting pipe and the first and second water pipes. The first and second pressing assemblies reinforce the seal, resulting in a strong sealing effect. The first and second water pipes can be quickly connected. To disassemble, simply rotate the first and second screw sleeves to release the connection.
[0008] A preferred embodiment of the indoor water supply pipe quick connection structure is as follows: the first screw sleeve is engraved with internal threads, all of which are connected to the external threads of the connecting pipe; the second screw sleeve is engraved with internal threads, all of which are connected to the external threads of the connecting pipe.
[0009] By adopting the above technical solution, the internal thread of the first screw sleeve will not contact the first sealing ring, thereby preventing the first sealing ring from being squeezed and damaged. The internal thread of the second screw sleeve will not contact the second sealing ring, thereby preventing the second sealing ring from being squeezed and damaged.
[0010] A preferred embodiment of the indoor water supply pipe quick connection structure is as follows: the first pressing assembly includes a plurality of first springs and a first pressure ring. The first threaded sleeve and the first pressure ring are fixed at both ends of each first spring. The first pressure ring presses against the end face of the first sealing ring. The second pressing assembly includes a plurality of second springs and a second pressure ring. The second threaded sleeve and the second pressure ring are fixed at both ends of each second spring. The second pressure ring presses against the end face of the second sealing ring.
[0011] By adopting the above technical solution, the multiple first springs push the first pressure ring to squeeze the first sealing ring, thereby sealing the gap between the connecting pipe and the first water pipe. The multiple second springs push the second pressure ring to squeeze the second sealing ring, thereby sealing the gap between the connecting pipe and the second water pipe.
[0012] A preferred solution of the indoor water supply pipe quick connection structure is that the plurality of first springs are parallel to each other and surround the outside of the first water pipe. The plurality of second springs are parallel to each other and surround the outside of the second water pipe.
[0013] By adopting the above technical solution, multiple first springs push the first pressure ring evenly from all directions on the circumference, and multiple second springs push the second pressure ring evenly from all directions on the circumference, so that the first pressure ring slides smoothly along the first water pipe and the second pressure ring slides smoothly along the second water pipe.
[0014] A preferred solution of the indoor water supply pipe quick connection structure is that the first screw sleeve surrounds one end of the first water pipe and has a first inner annular surface perpendicular to the first water pipe. One end of each of the plurality of first springs is fixed to the first inner annular surface.
[0015] By adopting the above technical solution, the first inner ring supports the first spring and does not interfere with the compression process of the first spring.
[0016] A preferred solution of the indoor water supply pipe quick connection structure is that the second screw sleeve surrounds one end of the second water pipe and has a second inner annular surface perpendicular to the second water pipe. One end of each of the plurality of second springs is fixed to the second inner annular surface.
[0017] By adopting the above technical solution, the second inner ring supports the second spring and does not interfere with the compression process of the second spring.
[0018] In a preferred embodiment of the indoor water supply pipe quick-connect structure, the first water pipe, the first threaded sleeve, and the connecting pipe define a first cavity. The first sealing ring and the first pressure assembly are both installed within the first cavity. Within the first cavity, the inner diameter of the first pressure ring is 0.5-1 mm larger than the outer diameter of the first water pipe, and the outer diameter of the first pressure ring is 0.5-1 mm smaller than the inner diameter of the first threaded sleeve.
[0019] By adopting the above technical solution, when the first screw sleeve is rotated, the first pressure ring is not easily stuck on the outer wall of the first water pipe, so each first spring is not easily bent, and the connection or disassembly can be completed better.
[0020] In a preferred embodiment of the indoor water supply pipe quick-connect structure, the second water pipe, the second threaded sleeve, and the connecting pipe define a second cavity. The second sealing ring and the second pressure assembly are both installed in the second cavity. Within the second cavity, the inner diameter of the second pressure ring is 0.5-1 mm larger than the outer diameter of the second water pipe, and the outer diameter of the second pressure ring is 0.5-1 mm smaller than the inner diameter of the second threaded sleeve.
[0021] By adopting the above technical solution, when the second screw sleeve is rotated, the second pressure ring is not easy to get stuck on the outer wall of the second water pipe, so each second spring is not easy to bend, and the connection or disassembly can be completed better.
[0022] A preferred solution of the indoor water supply pipe quick connection structure is that the cross-sections of the first sealing ring and the second sealing ring are both square.
[0023] By adopting the above technical solution, the inner annular surface of the first sealing ring and the outer wall of the first water pipe are in surface contact, with a large contact area and a good sealing effect. The outer annular surface of the first sealing ring and the inner wall of the first screw sleeve are in surface contact, with a large contact area and a good sealing effect. The inner annular surface of the second sealing ring and the outer wall of the second water pipe are in surface contact, with a large contact area and a good sealing effect. The outer annular surface of the second sealing ring and the inner wall of the second screw sleeve are in surface contact, with a large contact area and a good sealing effect.
[0024] A preferred solution of the indoor water supply pipe quick connection structure is that the first sealing ring is made of nitrile rubber, chloroprene rubber or butyl rubber. The second sealing ring is made of nitrile rubber, chloroprene rubber or butyl rubber.
[0025] By adopting the above technical solution, these materials have good elasticity and toughness, and as sealing materials, they can be moderately stretched and compressed. After being compressed in the present connection structure, they provide a good sealing effect and are durable.
[0026] In summary, the indoor water supply pipe quick connection structure of the present application has the following beneficial effects: the first sealing ring and the second sealing ring seal the gap between the connecting pipe and the first and second water pipes, and the first and second pressing assemblies strengthen the seal, resulting in a good sealing effect. This structure can quickly connect the first and second water pipes, and when disassembling the first and second water pipes, only the first and second screw sleeves need to be rotated to release the connection between the first and second water pipes. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 This is the external structural diagram of the indoor water supply pipe quick connection structure.
[0028] Figure 2 for Figure 1 sectional view of .
[0029] Figure 3 for Figure 2 A magnified view of area A.
[0030] Figure 4 For the general Figure 2 Structural diagram after hiding the first sealing ring, the second sealing ring, the first pressing assembly and the second pressing assembly.
[0031] Figure numerals: 1. first water pipe; 2. second water pipe; 3. connecting pipe; 4. first screw sleeve; 5. second screw sleeve; 6. first sealing ring; 7. second sealing ring; 8. first pressure assembly; 9. second pressure assembly; 10. first cavity; 11. second cavity; 801. first spring; 802. first pressure ring; 901. second spring; 902. second pressure ring; 401. first inner ring surface; 501. second inner ring surface. DETAILED DESCRIPTION
[0032] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the following embodiments, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0033] like Figure 1 , a quick connection structure for an indoor water supply pipe, including an external first water pipe 1, a second water pipe 2, a connecting pipe 3, a first screw sleeve 4 and a second screw sleeve 5.
[0034] Figure 2For Figure 1 The internal structure diagram after sectioning. Figure 3 for Figure 2 A magnified image of area A. Figure 3 The indoor water supply pipe quick connection structure also includes a first sealing ring 6, a second sealing ring 7, a first pressing component 8 and a second pressing component 9 inside.
[0035] The two ends of the connecting pipe 3 are respectively encircled by the first water pipe 1 and the second water pipe 2. The connecting pipe 3 is provided with external threads throughout.
[0036] One end of the first screw sleeve 4 surrounds the first water pipe 1, and the other end is engraved with an internal thread, which is completely connected to the external thread of the connecting pipe 3 to prevent the internal thread from squeezing the first sealing ring 6 and causing damage to the first sealing ring 6. The first screw sleeve 4 and the first water pipe 1 can be a split structure.
[0037] Similarly, one end of the second screw sleeve 5 surrounds the second water pipe 2, and the other end is engraved with an internal thread, which is completely connected to the external thread of the connecting pipe 3 to prevent the internal thread from squeezing the second sealing ring 7 and causing damage to the second sealing ring 7. The second screw sleeve 5 and the second water pipe 2 can be a split structure.
[0038] like Figure 4 The first water pipe 1, the first screw sleeve 4 and one end surface of the connecting pipe 3 form a first cavity 10. Figure 3 The first sealing ring 6 and the first pressing assembly 8 are both installed in the first cavity 10. The inner annular surface of the first sealing ring 6 is seamlessly pressed against the first water pipe 1, and the outer annular surface of the first sealing ring 6 is seamlessly pressed against the first screw sleeve 4. The first pressing assembly 8 presses the end surface of the first sealing ring 6 against one end surface of the connecting pipe 3.
[0039] like Figure 4 The second water pipe 2, the second screw sleeve 5 and the other end surface of the connecting pipe 3 form a second cavity 11. Figure 3 The second sealing ring 7 and the second pressing assembly 9 are both installed in the second cavity 11. The inner annular surface of the second sealing ring 7 is seamlessly pressed against the second water pipe 2, and the outer annular surface of the second sealing ring 7 is seamlessly pressed against the second screw sleeve 5. The second pressing assembly 9 presses the end face of the second sealing ring 7 against the other end face of the connecting pipe 3.
[0040] In the aforementioned indoor water supply pipe quick connection structure, the first sealing ring 6 and the second sealing ring 7 seal the gaps between the connecting pipe 3 and the first water pipe 1 and the second water pipe 2. The first pressing assembly 8 and the second pressing assembly 9 strengthen the seal, resulting in a good sealing effect. The installation of the indoor water supply pipe quick connection structure includes the following three steps.
[0041] The first step is to install the first sealing ring 6: first put the first screw sleeve 4 together with the first pressure component 8 outside the first water pipe 1, and then stretch the first sealing ring 6 and insert it between the first water pipe 1 and the first screw sleeve 4. The position of the first sealing ring 6 is closer to the end of the first water pipe 1 than the first mortgage component.
[0042] The second step is to install the second sealing ring 7: first put the second screw sleeve 5 together with the second pressure component 9 outside the second water pipe 2, and then stretch the second sealing ring 7 into the space between the second water pipe 2 and the second screw sleeve 5. The position of the second sealing ring 7 is closer to the end of the second water pipe 2 than the second mortgage component.
[0043] The third step is to put the connecting pipe 3 outside the end of the first water pipe 1 and the second water pipe 2, and rotate the first screw sleeve 4 and the second screw sleeve 5 so that the internal thread of the first screw sleeve 4 is connected to the external thread of the connecting pipe 3, and the internal thread of the second screw sleeve 5 is connected to the external thread of the connecting pipe 3. During this process, the first pressing component 8 pushes the first sealing ring 6 to press against one end face of the connecting pipe 3, and the second pressing component 9 pushes the second sealing ring 7 to press against the other end face of the connecting pipe 3, completing the quick connection of the first water pipe 1 and the second water pipe 2. After the connection, the first water pipe 1, the connecting pipe 3 and the second water pipe 2 have good sealing performance with each other. When disassembling, only the first screw sleeve 4 and the second screw sleeve 5 need to be rotated to release the mutual connection between the first water pipe 1, the connecting pipe 3 and the second water pipe 2. The installation and disassembly of this structure are very fast and convenient.
[0044] The first pressing assembly 8 includes a plurality of first springs 801 and a first pressure ring 802, for example, six first springs 801. The two ends of each first spring 801 are respectively fixed to the first screw sleeve 4 and the first pressure ring 802. The plurality of first springs 801 push the first pressure ring 802 to squeeze the first sealing ring 6. The plurality of first springs 801 directly squeeze multiple points of the first sealing ring 6, pushing the first sealing ring 6 and each position of the end surface of the connecting pipe 3 to press tightly, thereby sealing the gap between the connecting pipe 3 and the first water pipe 1, achieving a good sealing effect and effectively preventing water leakage.
[0045] The second pressing assembly 9 includes a plurality of second springs 901 and a second pressure ring 902, for example, six second springs 901. The two ends of each second spring 901 are respectively fixed to the second screw sleeve 5 and the second pressure ring 902. The plurality of second springs 901 push the second pressure ring 902 to squeeze the second sealing ring 7. The plurality of second springs 901 directly squeeze multiple points of the second sealing ring 7, pushing the second sealing ring 7 and each position of the other end surface of the connecting pipe 3 to press tightly, thereby sealing the gap between the connecting pipe 3 and the second water pipe 2, achieving a good sealing effect and effectively preventing water leakage.
[0046] In a preferred embodiment, a plurality of first springs 801 are arranged in parallel in a ring in the first cavity 10, and the plurality of first springs 801 push the first pressure ring 802 evenly from all directions on the circumference. Further preferably, in the first cavity 10, the inner diameter of the first pressure ring 802 is 0.5 to 1 mm larger than the outer diameter of the first water pipe 1, and the outer diameter of the first pressure ring 802 is 0.5 to 1 mm smaller than the inner diameter of the first screw sleeve 4. When installing the pipeline, when the first screw sleeve 4 is rotated, the first pressure ring 802 is not easy to get stuck on the outer wall of the first water pipe 1, and the first pressure ring 802 can slide smoothly along the first water pipe 1. Each first spring 801 is not easy to bend, and the first pressing component 8 can effectively push the first sealing ring 6 to enhance the sealing effect, thereby better completing the rapid connection and disassembly of the pipeline.
[0047] In a preferred embodiment, a plurality of second springs 901 are arranged in parallel in a ring in the second cavity 11, and the plurality of second springs 901 push the second pressure ring 902 in a balanced manner from all directions of the circumference. Further preferably, in the second cavity 11, the inner diameter of the second pressure ring 902 is 0.5 to 1 mm larger than the outer diameter of the second water pipe 2, and the outer diameter of the second pressure ring 902 is 0.5 to 1 mm smaller than the inner diameter of the second screw sleeve 5. When installing the pipeline, when the second screw sleeve 5 is rotated, the second pressure ring 902 is not easy to get stuck on the outer wall of the second water pipe 2, and the second pressure ring 902 can slide smoothly along the second water pipe 2. Each second spring 901 is not easy to bend, and the second pressing component 9 can effectively push the second sealing ring 7, thereby enhancing the sealing effect and better completing the quick connection and disassembly of the pipeline.
[0048] One end of the first screw sleeve 4, which surrounds the first water pipe 1, is perpendicular to the first water pipe 1, so that the inner surface of this end forms a first inner annular surface perpendicular to the first water pipe 1. One end of each of the multiple first springs 801 is fixed to the first inner annular surface 401, which effectively supports the multiple first springs 801. The end of the first screw sleeve 4 connected to the connecting pipe 3 forms a circular ring coaxial with the connecting pipe 3 and the first water pipe 1, so that the inner wall of the ring is parallel to the outer wall of the first water pipe 1, facilitating the installation of the multiple first springs 801.
[0049] One end of the second screw sleeve 5, which surrounds the second water pipe 2, is perpendicular to the second water pipe 2, so that the inner surface of this end forms a second inner annular surface perpendicular to the second water pipe 2. One end of each of the multiple second springs 901 is fixed to the second inner annular surface 501, which effectively supports the multiple second springs 901. The end of the second screw sleeve 5 connected to the connecting pipe 3 is a circular ring coaxial with the connecting pipe 3 and the second water pipe 2, so that the inner wall of the ring is parallel to the outer wall of the second water pipe 2, facilitating the installation of the multiple second springs 901.
[0050] In order to strengthen the sealing connection between each sealing ring, the screw sleeve, and the water pipe, as well as to strengthen the sealing contact with the connecting pipe 3, in a preferred embodiment, the first sealing ring 6 and the second sealing ring 7 are both made of a material with a square cross-section. In this way, the inner annular surface of the first sealing ring 6 and the outer wall of the first water pipe 1 are in surface contact, with a large contact area and a good sealing effect. The outer annular surface of the first sealing ring 6 and the inner wall of the first screw sleeve 4 are in surface contact, with a large contact area and a good sealing effect. The end face of the first sealing ring 6 and one end face of the connecting pipe 3 are in surface contact, with a large contact area and a good sealing effect. Similarly, the inner annular surface of the second sealing ring 7 and the outer wall of the second water pipe 2 are in surface contact, with a large contact area and a good sealing effect. The outer annular surface of the second sealing ring 7 and the inner wall of the second screw sleeve 5 are in surface contact, with a large contact area and a good sealing effect. The end face of the second sealing ring 7 and the other end face of the connecting pipe 3 are in surface contact, with a large contact area and a good sealing effect.
[0051] The first sealing ring 6 can be made of nitrile rubber, chloroprene rubber, or butyl rubber. The second sealing ring 7 can be made of nitrile rubber, chloroprene rubber, or butyl rubber. These materials have good elasticity and toughness. As sealing materials, they can be stretched and compressed appropriately. When compressed in this connection structure, they provide a good sealing effect and are durable.
[0052] The indoor water supply pipe quick connection structure of the present application uses a first sealing ring 6 and a second sealing ring 7 to seal the gap between the connecting pipe 3 and the first water pipe 1 and the second water pipe 2. The sealing effect of the first sealing ring 6 and the second sealing ring 7 is enhanced by a first pressing component 8 and a second pressing component 9. This structure allows for quick connection of the first water pipe 1 and the second water pipe 2. When disassembling the first water pipe 1 and the second water pipe 2, the connection between the first water pipe 1 and the second water pipe 2 can be quickly released by simply rotating the first screw sleeve 4 and the second screw sleeve 5.
[0053] Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.
Claims
1. A quick connection structure for indoor water supply pipes, characterized in that: It comprises a first water pipe (1), a second water pipe (2), a connecting pipe (3), a first screw sleeve (4), a second screw sleeve (5), a first sealing ring (6), a second sealing ring (7), a first pressing assembly (8) and a second pressing assembly (9); the two ends of the connecting pipe (3) are respectively wrapped around the first water pipe (1) and the second water pipe (2); One end of the first screw sleeve (4) surrounds the first water pipe (1), and the other end is threadedly connected to the connecting pipe (3); the first sealing ring (6) and the first pressing component (8) are both installed in the first screw sleeve (4); the first sealing ring (6) is seamlessly pressed against the first water pipe (1) and the first screw sleeve (4); the first pressing component (8) presses the first sealing ring (6) against one end surface of the connecting pipe (3); One end of the second screw sleeve (5) surrounds the second water pipe (2), and the other end is threadedly connected to the connecting pipe (3); the second sealing ring (7) and the second pressing assembly (9) are both installed in the second screw sleeve (5); the second sealing ring (7) is seamlessly pressed against the second water pipe (2) and the second screw sleeve (5); the second pressing assembly (9) presses the second sealing ring (7) against the other end face of the connecting pipe (3).
2. The indoor water supply pipe quick connection structure according to claim 1, characterized in that: The first screw sleeve (4) is engraved with an internal thread, and all the internal threads of the first screw sleeve (4) are connected to the external threads of the connecting pipe (3); the second screw sleeve (5) is engraved with an internal thread, and all the internal threads of the second screw sleeve (5) are connected to the external threads of the connecting pipe (3).
3. The indoor water supply pipe quick connection structure according to claim 1, characterized in that: The first pressing assembly (8) includes a plurality of first springs (801) and a first pressure ring (802); the two ends of each first spring (801) are respectively fixed to the first screw sleeve (4) and the first pressure ring (802); the first pressure ring (802) is pressed against the end surface of the first sealing ring (6); The second pressing assembly (9) comprises a plurality of second springs (901) and a second pressure ring (902); the two ends of each second spring (901) are respectively fixed to the second screw sleeve (5) and the second pressure ring (902); the second pressure ring (902) is pressed against the end surface of the second sealing ring (7).
4. The indoor water supply pipe quick connection structure according to claim 3, characterized in that: The plurality of first springs (801) are arranged parallel to each other and surround the outside of the first water pipe (1); and the plurality of second springs (901) are arranged parallel to each other and surround the outside of the second water pipe (2).
5. The indoor water supply pipe quick connection structure according to claim 3 or 4, characterized in that: One end of the first screw sleeve (4) surrounding the first water pipe (1) has a first inner annular surface (401) perpendicular to the first water pipe (1); one end of each of the plurality of first springs (801) is fixed to the first inner annular surface (401).
6. The indoor water supply pipe quick connection structure according to claim 3 or 4, characterized in that: One end of the second screw sleeve (5) surrounding the second water pipe (2) has a second inner annular surface (501) perpendicular to the second water pipe (2); one end of each of the plurality of second springs (901) is fixed to the second inner annular surface (501).
7. The indoor water supply pipe quick connection structure according to claim 3, characterized in that: The first water pipe (1), the first screw sleeve (4) and the connecting pipe (3) form a first cavity (10); the first sealing ring (6) and the first pressing assembly (8) are both installed in the first cavity (10); In the first cavity (10), the inner diameter of the first pressure ring (802) is 0.5-1 mm larger than the outer diameter of the first water pipe (1), and the outer diameter of the first pressure ring (802) is 0.5-1 mm smaller than the inner diameter of the first screw sleeve (4).
8. The indoor water supply pipe quick connection structure according to claim 3, characterized in that: The second water pipe (2), the second screw sleeve (5) and the connecting pipe (3) form a second cavity (11); the second sealing ring (7) and the second pressing assembly (9) are both installed in the second cavity (11); In the second cavity (11), the inner diameter of the second pressure ring (902) is 0.5-1 mm larger than the outer diameter of the second water pipe (2), and the outer diameter of the second pressure ring (902) is 0.5-1 mm smaller than the inner diameter of the second screw sleeve (5).
9. The indoor water supply pipe quick connection structure according to claim 1, characterized in that: The cross-sections of the first sealing ring (6) and the second sealing ring (7) are both square.
10. The indoor water supply pipe quick connection structure according to claim 1, characterized in that: The material of the first sealing ring (6) is nitrile rubber, chloroprene rubber or butyl rubber; the material of the second sealing ring (7) is nitrile rubber, chloroprene rubber or butyl rubber.