Squatting pan and trap connecting structure

Abstract

The utility model provides a connecting structure of a squatting pan and a trap, which comprises the squatting pan and the trap, the bottom surface of the squatting pan is provided with a drain outlet, the trap is provided with a water inlet interface, and the connecting structure also comprises a connector; the connector is made of rubber and provided with a connecting body, the connecting body is provided with a through hole in the axial direction of the connecting body, the connector is arranged on the outer side of a drain outlet of the squatting pan in a sleeving mode through the through hole, and at least one layer of first annular lip edge is arranged on the inner wall of the through hole in the axial direction of the through hole. An annular flange is horizontally arranged on the outer edge of a pipe opening of the water inlet connector, the bottom face of the connecting body makes contact with the top face of the annular flange, a positioning part of an annular structure is further arranged on the bottom face of the connecting body, and the outer diameter of the positioning part is matched with the inner diameter of the pipe opening of the water inlet connector. According to the utility model, the drain outlet and the water inlet interface are mechanically connected through the connector made of a rubber material, so that the sealing performance cannot be reduced as time goes on, and reliable sealing between the drain outlet and the water inlet interface can be effectively realized.

Description

Technical Field

[0001] The utility model relates to the technical field of squat toilets, in particular to a squat toilet and a water trap connection structure. Background Art

[0002] The trap used for the sewage outlet of the squat toilet is a pipe connection device located between the sewage outlet of the squat toilet and the sewer. Its main function is to smoothly guide the wastewater and solid waste discharged from the squat toilet to the sewer, while preventing sewage backflow and the emission of odor.

[0003] The squat toilet and the water trap need to be sealed to prevent sewage backflow and odor. In the prior art, self-adhesive sealing rings are often used to seal the water trap and the squat toilet using their own super strong adhesion. However, the sealing performance of the self-adhesive sealing ring will decrease over time, that is, due to the influence of factors such as ambient temperature, humidity and frequency of use, the self-adhesive sealing ring may become hard, brittle or lose its viscosity, resulting in a decrease in the sealing effect, thereby causing subsequent wastewater leakage or odor problems. Utility Model Content

[0004] In view of this, the utility model proposes a squat toilet and a water trap connection structure to solve the problem that the sealing performance of the self-adhesive sealing ring will decrease over time and cannot ensure the sealing of the connection between the squat toilet sewage outlet and the water trap.

[0005] The technical solution of the utility model is achieved in this way:

[0006] The utility model provides a squat toilet and a water trap connection structure, comprising a squat toilet and a water trap, wherein the bottom surface of the squat toilet is provided with a sewage outlet, the water trap has a water inlet interface connected to the sewage outlet, and further comprises a connector for connecting the sewage outlet with the water inlet interface;

[0007] The connector is made of rubber and has a connecting body. The connecting body has a through hole along its axial direction. The connector is sleeved on the outside of the sewage outlet of the squat toilet through the through hole. The top surface of the connecting body is abutted against the bottom surface of the squat toilet. The inner wall of the through hole is provided with at least one first annular lip along its axial direction. The inner diameter of the first annular lip is smaller than the outer wall diameter of the sewage outlet.

[0008] An annular flange is horizontally arranged at the outer edge of the pipe mouth of the water inlet interface, and the bottom surface of the connecting body is in contact with the top surface of the annular flange. The bottom surface of the connecting body is also provided with a positioning portion of an annular structure, and the positioning portion is inserted into the pipe mouth of the water inlet interface, and the outer diameter of the positioning portion is adapted to the inner diameter of the pipe mouth of the water inlet interface.

[0009] On the basis of the above technical solution, preferably, the top surface of the connecting body is provided with at least one sealing protrusion of an annular structure, and the sealing protrusion is coaxial with the through hole.

[0010] Further, preferably, the diameter of the outer wall of the sewage outlet gradually decreases from top to bottom, and the upper inner wall of the through hole and the outer wall of the top of the sewage outlet are interference fit.

[0011] On the basis of the above technical solution, preferably, a plug-in part with a cylindrical structure is provided on the bottom surface of the positioning part, the inner wall of the plug-in part and the inner wall of the through hole are integrally connected, the plug-in part is inserted in the pipe mouth of the water inlet interface, and the outer diameter of the plug-in part is smaller than the outer diameter of the positioning part.

[0012] Further, preferably, the outer peripheral wall of the plug-in portion is provided with at least one layer of second annular lip along its axial direction, and the outer diameter of the second annular lip is larger than the inner diameter of the pipe opening of the water inlet interface.

[0013] Furthermore, preferably, the second annular lip has a reinforcement portion horizontally surrounding the outside of the plug-in portion, the outer edge of the reinforcement portion horizontally extends to form an elastic portion, the thickness of the elastic portion is smaller than the thickness of the reinforcement portion, the outer diameter of the reinforcement portion is smaller than the inner diameter of the pipe mouth of the water inlet interface, the outer diameter of the elastic portion is larger than the inner diameter of the pipe mouth of the water inlet interface, and the bottom surface of the elastic portion has a first guide slope inclined upward.

[0014] Preferably, a second guiding inclined surface is arranged on the outer side of the bottom surface of the plug-in portion.

[0015] Preferably, the top surface of the first annular lip has a third guiding slope inclined downward.

[0016] Preferably, an annular groove is provided at the lower side of the connection between the inner wall of the through hole and the annular lip.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] (1) A connector made of rubber material is provided, and at least one first annular lip is provided on the inner wall of the through hole of the connector along its axial direction, wherein the inner diameter of the first annular lip is smaller than the outer wall diameter of the sewage outlet. When the sewage outlet is inserted into the through hole to a suitable position, the first annular lip is tightly wrapped around the outside of the sewage outlet, so that the connector can be prevented from slipping off the sewage outlet. In addition, the first annular lip is wrapped around the outer wall of the sewage outlet, and a strong seal can be formed between the two, thereby realizing an effective sealed connection between the squat toilet and the connector. By inserting the positioning part into the pipe mouth of the water inlet interface, the positioning part and the inner side of the pipe mouth of the water inlet interface can be positioned in the circumferential direction. When the connector is fully installed on the pipe mouth of the water inlet interface, the bottom surface of the connecting body is abutted against the annular flange of the water trap. Due to the downward pressure exerted by the weight of the squat toilet itself on the connector, the bottom surface of the connecting body made of silicone can be tightly sealed and connected with the annular flange when elastic deformation occurs. Compared with the self-adhesive sealing ring in the prior art, the utility model uses a rubber connector to mechanically connect the sewage outlet and the water inlet interface, which will not cause a decrease in sealing performance over time, and can effectively realize a reliable seal between the sewage outlet and the water inlet interface.

[0019] (2) At least one annular sealing protrusion is provided on the top surface of the connecting body, and the sealing protrusion is coaxial with the through hole. As a result, when the sewage outlet of the squat toilet is vertically inserted into the through hole, the bottom surface of the squat toilet can be pressed against the top surface of the connecting body due to its own weight, and the sealing protrusion can contact the bottom surface of the squat toilet, further improving the sealing performance of the connection between the squat toilet and the connector, and preventing sewage from leaking from the connection between the connector and the bottom surface of the squat toilet.

[0020] (3) At least one layer of second annular lip is provided on the outer peripheral wall of the plug-in portion along its axial direction, and the outer diameter of the second annular lip is larger than the inner diameter of the pipe mouth of the water inlet interface. Therefore, when the plug-in portion is vertically inserted into the pipe mouth, the second annular lip will be blocked by the top of the pipe mouth. Since the second annular lip has a certain elasticity, the second annular lip is bent upward, and the edge of the second annular lip is tightly attached to the inner wall of the pipe mouth, thereby forming a sealing barrier between the second annular lip and the inner wall of the pipe mouth. Under the action of the multiple layers of the second annular lip, it is possible to effectively prevent sewage or odor in the water trap from flowing back upward through the second annular lip, thereby improving the sealing performance between the water trap and the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the assembly process of the squat toilet, the water trap and the connector disclosed in the utility model;

[0023] Figure 2 It is a schematic diagram of a half-section structure of a water trap and a connector disclosed in the utility model;

[0024] Figure 3 for Figure 2 Plane section view at AA in the middle;

[0025] Figure 4 It is a schematic plan view of the assembly structure between the water trap, the connector and the squat toilet disclosed in the utility model;

[0026] Reference numerals:

[0027] 1. squat toilet; 2. water trap; 11. sewage outlet; 21. water inlet interface; 3. connector; 31. connecting body; 32. through hole; 321. first annular lip; 211. annular flange; 33. positioning part; 34. sealing protrusion; 35. plug-in part; 351. second annular lip; 3511. reinforcement part; 3512. elastic part; 3513. first guide slope; 352. second guide slope; 3210. third guide slope; 322. annular groove. DETAILED DESCRIPTION

[0028] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1 As shown, combined Figure 2-4 The utility model discloses a water trap and squat toilet connection structure, including a squat toilet 1 and a water trap 2. The bottom surface of the squat toilet 1 has a sewage outlet 11, and the water trap 2 has a water inlet interface 21 connected to the sewage outlet 11.

[0030] In order to achieve a sealed connection between the sewage outlet 11 of the squat toilet 1 and the water inlet interface 21 of the water trap 2, in some prior arts, a commonly adopted solution is to seal the water trap 2 and the squat toilet 1 through a self-adhesive sealing ring with super strong adhesion. The sealing performance of the self-adhesive sealing ring will decrease with the passage of time, and the sealing problem of the connection between the sewage outlet 11 of the squat toilet 1 and the water trap 2 cannot be guaranteed.

[0031] In order to solve the above problems, the utility model is provided with a rubber connector 3. The connector 3 is first installed on the sewage outlet of the squat toilet, and then the squat toilet and the connector are connected to the water inlet interface of the water trap 2 through the connector.

[0032] In order to achieve the above operation and ensure the sealing of the connection, the connector 3 is structurally configured in this embodiment. Specifically, the connector 3 has a connecting body 31. The connecting body 31 is provided with a through hole 32 along its axial direction. The cross-section of the through hole 32 is circular, and the outer wall diameter of the sewage outlet 11 gradually decreases from top to bottom. This makes it convenient for the connector 3 to be sleeved on the outside of the sewage outlet 11 of the squat toilet 1 through the through hole 32. When the connector 3 is sleeved to the appropriate position of the sewage outlet 11, the top surface of the connecting body 31 is abutted against the bottom surface of the squat toilet 1.

[0033] Since the connector 3 is sleeved on the sewage outlet 11, but the sewage outlet 11 is a conical structure, the connector 3 cannot be effectively fixed to the sewage outlet 11 in the vertical direction, which makes it inconvenient to connect the squat toilet 1 and the connector 3 to the water trap 2 after assembly.

[0034] To this end, the solution adopted in this embodiment is: at least one first annular lip 321 is provided on the inner wall of the through hole 32 along its axial direction, and the inner diameter of the first annular lip 321 is smaller than the outer wall diameter of the sewage outlet 11. According to this arrangement, when the connector 3 is sleeved by the lower end of the sewage outlet 11, the lower end of the sewage outlet 11 is inserted into the through hole 32. During this process, the sewage outlet 11 will pass through the first annular lip 321 in sequence. When the sewage outlet 11 is inserted into the through hole 32 to a suitable position, the inner diameter of the first annular lip 321 is expanded, and the first annular lip 321 is folded downward, and the first annular lip 321 is tightly wrapped around the outer side of the sewage outlet 11, so that an effective friction force is established between the first annular lip 321 and the sewage outlet 11, which can prevent the connector 3 from slipping off the sewage outlet 11. In addition, the first annular lip 321 is wrapped around the outer wall of the sewage outlet 11, and a strong seal can be formed between the two. In this way, it is possible to prevent sewage or odor in the trap pipe 2 from flowing back upward through the first annular lip 321, thereby improving the sealing performance between the squat toilet 1 and the connector 3.

[0035] In order to achieve effective sealing connection between the connector 3 installed on the sewage outlet 11 and the water inlet interface 21 of the water trap 2, the solution adopted in this embodiment is: an annular flange 211 is horizontally arranged at the outer edge of the pipe mouth of the water inlet interface 21, and the bottom surface of the connecting body 31 is in contact with the top surface of the annular flange 211. The bottom surface of the connecting body 31 is also provided with a positioning portion 33 with an annular structure. The positioning portion 33 is inserted into the pipe mouth of the water inlet interface 21, and the outer diameter of the positioning portion 33 is adapted to the inner diameter of the pipe mouth of the water inlet interface 21.

[0036] According to the arrangement, when the connector 3 is installed outside the sewage outlet 11, the two are connected as a whole to the water trap 2. During the connection process, the positioning portion 33 is inserted into the pipe mouth of the water inlet interface 21, so that the positioning portion 33 and the inner side of the pipe mouth of the water inlet interface 21 can be positioned in the circumferential direction to avoid horizontal displacement of the connector 3 relative to the water trap 2. When the connector 3 is completely installed on the pipe mouth of the water inlet interface 21, the bottom surface of the connecting body 31 abuts against the annular flange 211 of the water trap 2. Since the weight of the squat toilet 1 applies downward pressure to the connector 3, the bottom surface of the connecting body 31 made of silicone material can be tightly sealed with the annular flange 211 when elastic deformation occurs.

[0037] Compared with the self-adhesive sealing ring in the prior art, the utility model uses a rubber connector 3 to mechanically connect the sewage outlet 11 and the water inlet interface 21, which will not cause the sealing performance to decrease over time and can effectively achieve reliable sealing between the sewage outlet 11 and the water inlet interface 21.

[0038] Preferably, the connector 3 of this embodiment is preferably made of silicone rubber. Silicone rubber has excellent sealing performance and can effectively prevent sewage leakage. Secondly, silicone rubber has good weather resistance and chemical resistance, can withstand the effects of water and chemical detergents for a long time, and has a long service life. At the same time, silicone rubber has good high temperature resistance and can ensure that its sealing is not affected in a high temperature environment. In addition, the connector 3 made of silicone rubber is soft and has strong elasticity, which is convenient for installation between the squat toilet 1 and the water trap 2.

[0039] It is worth noting that the connector 3 of the present embodiment is first installed on the sewage outlet 11 of the squat toilet 1, and then the two are assembled as a whole with the water trap 2. During the assembly process, the positioning portion 33 of the connector 3 is inserted into the pipe mouth of the water inlet interface 21, so that the bottom surface of the connecting body 31 is abutted against the annular flange 211 of the water trap 2. Under the action of the deadweight of the squat toilet 1, the connector 3 is tightly connected to the water trap 2, so that the sewage outlet 11 of the squat toilet 1 is reliably sealed through the connector 3 and the water inlet interface 21 of the water trap 2, and the operation is simple and convenient.

[0040] As some preferred embodiments, at least one annular sealing protrusion 34 is provided on the top surface of the connecting body 31, and the sealing protrusion 34 is coaxial with the through hole 32. With this arrangement, when the sewage outlet 11 of the squat toilet 1 is vertically inserted into the through hole 32, the bottom surface of the squat toilet 1 can be pressed against the top surface of the connecting body 31 due to its own weight, and the sealing protrusion 34 can contact the bottom surface of the squat toilet 1, further improving the sealing performance of the connection between the squat toilet 1 and the connector 3, and preventing sewage from leaking from the connection between the connector 3 and the bottom surface of the squat toilet 1.

[0041] In order to further improve the sealing performance of the connector 3 and the sewage outlet 11 of the squat toilet 1, the solution adopted in this embodiment is to make the upper inner wall of the through hole 32 and the outer wall of the top of the sewage outlet 11 interference fit. With this arrangement, after the connector 3 is completely sleeved on the outer wall of the sewage outlet 11, the upper inner side of the through hole 32 can be squeezed with the root of the sewage outlet 11, and a reliable seal is achieved at this connection. At the same time, the interference fit here can avoid the through hole 32 and the sewage outlet 11 being out of alignment after the connector 3 is sleeved on the outside of the sewage outlet 11, resulting in the connector 3 and the sewage outlet 11 being out of alignment, which affects the connection with the trap pipe 2.

[0042] In order to facilitate the smooth installation of the connector 3 on the water inlet interface 21 of the water trap 2, the scheme set in this embodiment is: a plug-in portion 35 with a cylindrical structure is provided on the bottom surface of the positioning portion 33, the inner wall of the plug-in portion 35 and the inner wall of the through hole 32 are integrally connected, the plug-in portion 35 is inserted in the pipe mouth of the water inlet interface 21, and the outer diameter of the plug-in portion 35 is smaller than the outer diameter of the positioning portion 33.

[0043] In this configuration, since the outer diameter of the plug-in portion 35 is smaller than the outer diameter of the positioning portion 33, it is naturally smaller than the inner diameter of the pipe mouth. Therefore, when the connector 3 is connected to the water trap pipe 2, the plug-in portion 35 is first inserted into the pipe mouth, which plays a guiding role for the connector 3, thereby avoiding a large positional misalignment when the connector 3 is plugged in and installed. When the plug-in portion 35 is fully inserted into the pipe mouth, the positioning portion 33 can be inserted into the pipe mouth by horizontally fine-tuning the connector 3. When the positioning portion 33 is inserted into the pipe mouth, the bottom surface of the connecting body 31 smoothly contacts the top surface of the annular flange 211, thereby effectively completing the sealed connection between the connector 3 and the water trap pipe 2.

[0044] In this embodiment, in order to facilitate the smooth insertion of the positioning portion 33 into the pipe mouth, a clearance fit is provided between the outer wall of the positioning portion 33 and the inner wall of the pipe mouth. Therefore, the sealing of the entire connector 3 and the water trap 2 is only at the contact point between the bottom surface of the connecting body 31 and the top surface of the annular flange 211. The strength of this sealing needs to be strengthened.

[0045] To this end, the solution adopted in this embodiment is: at least one layer of second annular lip 351 is provided on the outer peripheral wall of the plug-in portion 35 along its axial direction, and the outer diameter of the second annular lip 351 is larger than the inner diameter of the pipe opening of the water inlet interface 21.

[0046] According to the configuration, when the plug-in portion 35 is vertically inserted into the pipe mouth, the second annular lip 351 will be blocked by the top of the pipe mouth. Since the second annular lip 351 has a certain elasticity, the second annular lip 351 is bent upward, and the edge of the second annular lip 351 is close to the inner wall of the pipe mouth, thereby forming a sealing barrier between the second annular lip 351 and the inner wall of the pipe mouth. Under the action of the multi-layer second annular lip 351, the sewage or odor in the water trap 2 can be effectively prevented from flowing back upward through the second annular lip 351, thereby improving the sealing performance between the water trap 2 and the connector 3.

[0047] As some preferred embodiments, the second annular lip 351 has a reinforcing portion 3511 horizontally surrounding the outer side of the plug-in portion 35, and the outer edge of the reinforcing portion 3511 horizontally extends to form an elastic portion 3512, the thickness of the elastic portion 3512 is less than the thickness of the reinforcing portion 3511, the outer diameter of the reinforcing portion 3511 is less than the inner diameter of the pipe mouth of the water inlet interface 21, and the outer diameter of the elastic portion 3512 is greater than the inner diameter of the pipe mouth of the water inlet interface 21. By setting the reinforcing portion 3511, the structural strength of the second annular lip 351 can be improved, and at the same time, under the action of the reinforcing portion 3511, the elastic portion 3512 can be more strongly attached to the inner wall of the pipe mouth. In addition, the thickness of the elastic portion 3512 is less than the thickness of the reinforcing portion 3511, which can facilitate the elastic portion 3512 to bend upward quickly when it contacts the inner wall of the pipe mouth, and provide sufficient adhesion force for the elastic portion 3512 under the support of the reinforcing portion 3511, thereby improving the sealing performance.

[0048] The bottom surface of the elastic portion 3512 has an upwardly inclined first guide slope 3513, whereby after the entire second annular lip 351 enters the inner side of the pipe mouth, the first guide slope 3513 can fit tightly against the inner wall of the pipe mouth, further improving the sealing performance.

[0049] Preferably, a second guiding inclined surface 352 is provided on the outer side of the bottom surface of the plug-in portion 35. Thus, the plug-in portion 35 can be smoothly inserted into the inner side of the pipe opening by guiding the second guiding inclined surface 352.

[0050] Preferably, the top surface of the first annular lip 321 has a third guiding slope 3210 that is inclined downward. With this arrangement, the thickness of the first annular lip 321 can be reduced, so that the sewage outlet 11 can pass smoothly through the inner hole of the first annular lip 321 under the guidance of the third guiding slope 3210, and the first annular lip 321 can be prevented from causing resistance to the insertion of the sewage outlet 11 due to its excessive thickness.

[0051] Optionally, an annular groove 322 is provided at the lower side of the connection between the inner wall of the through hole 32 and the first annular lip 321. By providing the annular groove 322, the root stress of the first annular lip 321 can be eliminated during the downward folding of the first annular lip 321, and fatigue of the first annular lip 321 can be avoided. At the same time, the influence of the stress on the entire connector 3 during the folding of the first annular lip 321 can be reduced.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A squat toilet and a water trap connection structure, comprising a squat toilet (1) and a water trap (2), wherein the bottom surface of the squat toilet (1) has a sewage outlet (11), and the water trap (2) has a water inlet interface (21) connected to the sewage outlet (11), characterized in that: It also includes a connector (3) for connecting the sewage outlet (11) to the water inlet interface (21); The connector (3) is made of rubber material and comprises a connecting body (31). The connecting body (31) has a through hole (32) along its axial direction. The connector (3) is sleeved on the outside of the sewage outlet (11) through the through hole (32). The top surface of the connecting body (31) is in contact with the bottom surface of the squat toilet (1). The inner wall of the through hole (32) is provided with at least one first annular lip (321) along its axial direction. The inner diameter of the first annular lip (321) is smaller than the outer wall diameter of the sewage outlet (11). An annular flange (211) is horizontally arranged at the outer edge of the pipe mouth of the water inlet interface (21), the bottom surface of the connecting body (31) is in contact with the top surface of the annular flange (211), and the bottom surface of the connecting body (31) is also provided with a positioning portion (33) of an annular structure, the positioning portion (33) is inserted into the pipe mouth of the water inlet interface (21), and the outer diameter of the positioning portion (33) is matched with the inner diameter of the pipe mouth of the water inlet interface (21).

2. The squat toilet and water trap connection structure according to claim 1, characterized in that: The top surface of the connecting body (31) is provided with at least one sealing protrusion (34) of an annular structure, and the sealing protrusion (34) is coaxial with the through hole (32).

3. The squat toilet and water trap connection structure according to claim 2, characterized in that: The diameter of the outer wall of the sewage outlet (11) gradually decreases from top to bottom, and the inner wall of the upper end of the through hole (32) and the outer wall of the top of the sewage outlet (11) are interference fit.

4. The squat toilet and water trap connection structure according to claim 1, characterized in that: The bottom surface of the positioning portion (33) is provided with a plug-in portion (35) of a cylindrical structure, the inner wall of the plug-in portion (35) and the inner wall of the through hole (32) are integrally connected, the plug-in portion (35) is inserted into the pipe mouth of the water inlet interface (21), and the outer diameter of the plug-in portion (35) is smaller than the outer diameter of the positioning portion (33).

5. The squat toilet and water trap connection structure according to claim 4, characterized in that: The outer peripheral wall of the plug-in portion (35) is provided with at least one layer of second annular lip (351) along its axial direction, and the outer diameter of the second annular lip (351) is greater than the inner diameter of the pipe opening of the water inlet interface (21).

6. The squat toilet and water trap connection structure according to claim 5, characterized in that: The second annular lip (351) has a reinforcing portion (3511) horizontally surrounding the outer side of the plug-in portion (35); the outer edge of the reinforcing portion (3511) extends horizontally to form an elastic portion (3512); the thickness of the elastic portion (3512) is smaller than the thickness of the reinforcing portion (3511); the outer diameter of the reinforcing portion (3511) is smaller than the inner diameter of the pipe mouth of the water inlet interface (21); the outer diameter of the elastic portion (3512) is larger than the inner diameter of the pipe mouth of the water inlet interface (21); and the bottom surface of the elastic portion (3512) has a first guiding inclined surface (3513) inclined upward.

7. The squat toilet and water trap connection structure according to any one of claims 4 to 6, characterized in that: A second guiding inclined surface (352) is provided on the outer side of the bottom surface of the plug-in portion (35).

8. The squat toilet and water trap connection structure according to claim 1, characterized in that: The top surface of the first annular lip (321) has a third guiding slope (3210) inclined downward.

9. The squat toilet and water trap connection structure according to claim 1, characterized in that: An annular groove (322) is provided at the lower side of the connection between the inner wall of the through hole (32) and the first annular lip (321).

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