Connecting structure of trap pipe and squatting pan

Abstract

The utility model provides a connecting structure of a trap and a squatting pan, which relates to the technical field of squatting pans, and comprises a squatting pan and a trap, the bottom surface of the squatting pan is provided with a drain outlet, the trap is provided with a water inlet interface connected with the drain outlet, and the connecting structure also comprises a connector for connecting the drain outlet with the water inlet interface; the connector is provided with a connecting body made of rubber, the connecting body is provided with a through hole in the axial direction of the connecting body, the end face of the bottom of the connecting body is provided with an annular inserting groove, the annular inserting groove is arranged on a pipe opening of the water inlet connector in a sleeving mode, a sewage draining outlet of the squatting pan is inserted into the through hole, and the bottom face of the squatting pan abuts against the top face of the connecting body. The connector made of rubber is connected with the drain outlet and the water inlet port in a mechanical mode, the sealing performance cannot be reduced as time goes on, and reliable sealing between the drain outlet and the water inlet port can be effectively achieved.

Description

Technical Field

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

[0002] The trap elbow 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. Its structural principle is to form a water seal through the bending angle to prevent the backflow of malodorous gases, and use reasonable design and sealing gaskets to ensure the sealing of the connection, while allowing the wastewater to flow smoothly to avoid blockage and water accumulation.

[0003] For example, a connection structure between a water trap elbow and a squat toilet disclosed in the authorization announcement number CN213979202U includes a squat toilet, a water trap elbow and a self-adhesive sealing ring. The self-adhesive sealing ring is used to seal the connection between the water trap elbow and the squat toilet by using its own super strong adhesion. However, the sealing performance of the self-adhesive sealing ring in this technical solution 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 viscosity, resulting in a decrease in the sealing effect. In addition, the installation of the self-adhesive sealing ring is relatively complicated, and it is necessary to ensure that the viscosity and position of the self-adhesive sealing ring are correct to ensure the sealing effect. If it is improperly installed, it is easy to cause the squat toilet sewage outlet and the elbow to be not tightly sealed, thereby causing subsequent wastewater leakage or odor problems. Utility Model Content

[0004] In view of this, the utility model proposes a water trap and squat toilet 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 water trap and squat toilet 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 bottom end surface of the connecting body is provided with an annular slot, which is sleeved on the pipe mouth of the water inlet interface. The sewage outlet of the squat toilet is inserted in the through hole, and the bottom surface of the squat toilet is abutted against the top surface of the connecting body.

[0008] On the basis of the above technical solution, preferably, the annular slot and the pipe mouth of the water inlet interface are interference fit.

[0009] Further, preferably, the annular slot separates the connecting body into a concentrically arranged outer convex wall and an inner convex wall, the outer convex wall is attached to the outer side surface of the pipe mouth of the water inlet interface, the inner convex wall is attached to the inner side surface of the pipe mouth of the water inlet interface, and the length of the inner convex wall is greater than the length of the outer convex wall.

[0010] Further, preferably, the thickness of the inner convex wall is greater than the thickness of the outer convex wall.

[0011] Furthermore, preferably, the bottom surface of the inner convex wall has a first guiding slope inclined toward the inner side of the through hole.

[0012] On the basis of the above technical solution, preferably, the outer wall diameter of the sewage outlet gradually decreases from top to bottom, the upper inner wall of the through hole and the outer wall of the top of the sewage outlet are interference fit, and the inner wall of the through hole is provided with at least one annular lip along its axial direction, and the inner diameter of the annular lip is smaller than the outer wall diameter of the sewage outlet.

[0013] Further, preferably, the top surface of the annular lip has a second guiding slope inclined downward.

[0014] Furthermore, 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.

[0015] 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.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1) By providing a connector made of rubber material and providing an annular slot on the bottom end face of the connecting body, the connector is sleeved on the pipe mouth of the water inlet interface so that the pipe mouth of the water inlet interface is inserted into the annular slot, so that the connector is assembled on the water inlet interface of the trap pipe, and then the sewage outlet of the squat toilet is vertically inserted into the through hole, so that the sewage outlet is connected with the water inlet interface by means of the connector. At this time, due to its own weight, the bottom surface of the squat toilet can be pressed against the top surface of the connecting body. Since the connector is made of rubber material as a whole, the bottom surface of the squat toilet and the connecting body are pressed tightly, so that an effective seal can be achieved between the squat toilet and the connector, and sewage leakage from the connection between the connector and the squat toilet can be avoided. Since the pipe mouth of the trap pipe is embedded in the annular slot of the connector, and the weight of the squat toilet presses down the connector, the pipe mouth of the trap pipe and the top surface of the annular slot are tightly matched, so that the connection between the connector and the trap pipe is effectively sealed. Compared with the self-adhesive sealing ring in the prior art, the rubber connector provided in the utility model connects the sewage outlet and the water inlet interface in a mechanical manner, which will not cause the sealing performance to deteriorate over time and can effectively achieve reliable sealing between the sewage outlet and the water inlet interface.

[0018] (2) By setting the length of the inner convex wall to be greater than the length of the outer convex wall, on the one hand, when the connector and the water trap are installed, the inner convex wall is first inserted into the pipe mouth of the water inlet interface, and the inner convex wall is used to guide the entire connector to move downward on the pipe mouth, so that the pipe mouth is smoothly inserted into the annular slot, thereby improving the installation efficiency and the accuracy of the connection. On the other hand, the length of the inner convex wall is greater than the length of the outer convex wall, so that the inner convex wall can have a larger sealing contact area with the inner wall of the pipe mouth, extend the leakage flow path, and improve the sealing performance.

[0019] (3) By providing a first guide slope inclined toward the inside of the through hole on the bottom surface of the inner convex wall, dirt can be more easily washed away during flushing, thereby preventing dirt from adhering to the bottom end surface of the inner convex wall.

[0020] (4) At least one annular lip is provided on the inner wall of the through hole along the axial direction thereof, and the inner diameter of the annular lip is smaller than the outer wall diameter of the sewage outlet. Thus, when the lower end of the sewage outlet is inserted into the through hole, it will pass through the annular lip in sequence. When the sewage outlet is inserted into the through hole to a suitable position, the inner diameter of the annular lip is expanded, and the annular lip is folded downward, and the annular lip is tightly wrapped around the outer side of the sewage outlet to form a strong seal. In this way, it is possible to prevent sewage or odor in the water trap from flowing upward through the annular lip, thereby improving the sealing performance between the squat toilet 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 It is a schematic diagram of the assembly structure of the water trap and the connector disclosed in the utility model;

[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. Trap; 11. Drain outlet; 21. Water inlet; 3. Connector; 31. Connecting body; 32. Through hole; 310. Annular slot; 311. Outer convex wall; 312. Inner convex wall; 3121. First guide slope; 33. Annular lip; 331. Second guide slope; 321. Annular groove; 313. Sealing protrusion. 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] Therefore, in order to solve the above problems, the utility model provides a connector 3 made of rubber material. The connector 3 has a connecting body 31, and 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, which is for matching the connection with the sewage outlet 11. The bottom end surface of the connecting body 31 is provided with an annular slot 310, which is sleeved on the pipe mouth of the water inlet interface 21, and the sewage outlet 11 of the squat toilet 1 is inserted into the through hole 32, and the bottom surface of the squat toilet 1 is against the top surface of the connecting body 31.

[0032] Taking the above technical scheme as an example, when the squat toilet 1 and the water trap 2 are connected, first, after the burial of the water trap 2 is completed, the water inlet interface 21 of the water trap 2 is vertically facing upwards, and then the connector 3 is sleeved on the pipe mouth of the water inlet interface 21, so that the pipe mouth of the water inlet interface 21 is inserted into the annular slot 310, and the connector 3 is assembled on the water inlet interface 21 of the water trap 2, and then the sewage outlet 11 of the squat toilet 1 is vertically inserted into the through hole 32, so that the sewage outlet 11 is connected with the water inlet interface 21 by means of the connector 3. At this time, due to its own weight, the bottom surface of the squat toilet 1 can be pressed against the top surface of the connecting body 31. Since the connector 3 is made of rubber as a whole, the bottom surface of the squat toilet 1 and the connecting body 31 are pressed tightly, which can achieve effective sealing and prevent sewage from leaking from the connection between the connector 3 and the bottom surface of the squat toilet 1. Since the mouth of the water trap 2 is embedded in the annular slot 310 of the connector 3, and the weight of the squat toilet 1 presses down the connector 3, the mouth of the water trap 2 and the top surface of the annular slot 310 are tightly matched, so that the connection between the connector 3 and the water trap 2 is effectively sealed. 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.

[0033] 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.

[0034] It is worth noting that the connector 3 of the present embodiment is first installed on the pipe mouth of the water inlet interface 21 of the water trap 2, and finally the sewage outlet of the squat toilet 1 is inserted into the through hole 32, so that the bottom surface of the squat toilet 1 is pressed against the top surface of the connecting body 31, thereby completing the reliable sealing of the sewage outlet of the squat toilet 1 through the connector 3 and the water inlet interface 21 of the water trap 2, and the operation is simple and convenient.

[0035] In order to achieve effective sealing between the connector 3 and the water trap 2, the present embodiment provides interference fit between the annular slot 310 and the pipe opening of the water inlet interface 21. Specifically, the slot width of the annular slot 310 is slightly smaller than the wall thickness of the pipe opening of the water inlet interface 21. Preferably, the slot width of the annular slot 310 is 0.1 mm-0.5 mm smaller than the wall thickness of the pipe opening of the water inlet interface 21. With this arrangement, when the pipe opening of the water inlet interface 21 is inserted into the annular slot 310, a tight fit between the connector 3 and the water inlet interface 21 of the water trap 2 can be achieved, thereby improving the sealing performance between the two.

[0036] As some preferred embodiments, the annular slot 310 separates the connecting body 31 into a concentrically arranged outer convex wall 311 and an inner convex wall 312, the outer convex wall 311 is attached to the outer side of the pipe mouth of the water inlet interface 21, and the inner convex wall 312 is attached to the inner side of the pipe mouth of the water inlet interface 21. With such a structural arrangement, the outer convex wall 311 and the inner convex wall 312 are respectively attached to the outer side and inner side of the pipe mouth of the water inlet interface 21, forming a good sealing contact, which effectively prevents sewage leakage and odor problems.

[0037] In this embodiment, the length of the inner convex wall 312 is greater than the length of the outer convex wall 311. Thus, on the one hand, when the connector 3 and the water trap 2 are installed, the inner convex wall 312 is first inserted into the pipe mouth of the water inlet interface 21, and the inner convex wall 312 is used to guide the entire connector 3 to move downward on the pipe mouth, so that the pipe mouth is smoothly inserted into the annular slot 310, thereby improving the installation efficiency and the accuracy of the connection. On the other hand, the length of the inner convex wall 312 is greater than the length of the outer convex wall 311, so that the inner convex wall 312 can have a larger sealing contact area with the inner wall of the pipe mouth, extend the leakage flow path, and improve the sealing performance.

[0038] The thickness of the inner convex wall 312 is greater than that of the outer convex wall 311. This structural setting can provide stronger support and stability. Since the inner convex wall 312 is located inside the water inlet of the water trap 2, its greater thickness can ensure that the connector 3 has sufficient support when inserted into the water trap 2, thereby increasing the stability of the connection. This design helps prevent the connector 3 from being deformed or damaged during installation, and can ensure that the sealing performance between the connector 3 and the water trap 2 is not affected.

[0039] As some preferred embodiments, the bottom surface of the inner convex wall 312 has a first guide slope 3121 inclined toward the inside of the through hole 32. Thus, the first guide slope 3121 can more easily flush away dirt during flushing and prevent dirt from adhering to the bottom end surface of the inner convex wall 312.

[0040] As some preferred embodiments, the outer wall diameter of the sewage outlet 11 gradually decreases from top to bottom. This structure is convenient for insertion into the connector 3. The upper inner wall of the through hole 32 and the outer wall of the top of the sewage outlet 11 have an interference fit. Such a structural setting can ensure the sealing performance between the connector 3 and the sewage outlet 11. The role of the interference fit is to form a close contact, which helps to prevent sewage leakage and the spread of odor.

[0041] In this embodiment, at least one annular lip 33 is provided on the inner wall of the through hole 32 along the axial direction thereof, and the inner diameter of the annular lip 33 is smaller than the outer wall diameter of the sewage outlet 11. Thus, when the lower end of the sewage outlet 11 is inserted into the through hole 32, it will pass through the annular lip 33 in sequence. When the sewage outlet 11 is inserted into the through hole 32 to a suitable position, the inner diameter of the annular lip 33 is expanded, and the annular lip 33 is folded downward, and the annular lip 33 is tightly wrapped around the outer side of the sewage outlet 11 to form a strong seal. In this way, it is possible to prevent the sewage or odor in the trap pipe 2 from flowing upward through the annular lip 33, thereby improving the sealing performance between the squat toilet 1 and the connector 3.

[0042] Preferably, the top surface of the annular lip 33 has a second guide bevel 331 inclined downward. This arrangement can reduce the thickness of the annular lip 33, making it easier for the sewage outlet 11 to pass through the inner hole of the annular lip 33 smoothly under the guidance of the second guide bevel 331, thereby avoiding the annular lip 33 causing resistance to the insertion of the sewage outlet 11 due to its excessive thickness.

[0043] Preferably, an annular groove 321 is provided at the lower side of the connection between the inner wall of the through hole 32 and the annular lip 33. By providing the annular groove 321, the root stress of the annular lip 33 can be eliminated during the folding process of the annular lip 33, and fatigue of the annular lip 33 can be avoided. At the same time, the influence of stress on the entire connector 3 during the folding process of the annular lip 33 can be reduced.

[0044] Preferably, at least one sealing protrusion 313 of an annular structure is provided on the top surface of the connecting body 31, and the sealing protrusion 313 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 313 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.

[0045] 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 water trap and squat toilet 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 bottom end surface of the connecting body (31) is provided with an annular slot (310). The annular slot (310) is sleeved on the pipe mouth of the water inlet interface (21). The sewage outlet (11) of the squat toilet (1) is inserted into the through hole (32), and the bottom surface of the squat toilet (1) is in contact with the top surface of the connecting body (31).

2. The water trap and squat toilet connection structure according to claim 1, characterized in that: The annular slot (310) and the pipe opening of the water inlet interface (21) are interference fit.

3. The water trap and squat toilet connection structure according to claim 2, characterized in that: The annular slot (310) divides the connection body (31) into an outer convex wall (311) and an inner convex wall (312) which are arranged concentrically; the outer convex wall (311) is attached to the outer side surface of the pipe mouth of the water inlet interface (21); the inner convex wall (312) is attached to the inner side surface of the pipe mouth of the water inlet interface (21); and the length of the inner convex wall (312) is greater than the length of the outer convex wall (311).

4. The water trap and squat toilet connection structure according to claim 3, characterized in that: The thickness of the inner convex wall (312) is greater than the thickness of the outer convex wall (311).

5. The water trap and squat toilet connection structure according to claim 3, characterized in that: The bottom surface of the inner convex wall (312) has a first guiding inclined surface (3121) inclined toward the inside of the through hole (32).

6. The water trap and squat toilet connection structure according to claim 1, characterized in that: The diameter of the outer wall of the sewage outlet (11) gradually decreases from top to bottom, 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, and the inner wall of the through hole (32) is provided with at least one annular lip (33) along its axial direction, and the inner diameter of the annular lip (33) is smaller than the outer wall diameter of the sewage outlet (11).

7. The water trap and squat toilet connection structure according to claim 6, characterized in that: The top surface of the annular lip (33) has a second guiding slope (331) inclined downward.

8. The water trap and squat toilet connection structure according to claim 6 or 7, characterized in that: An annular groove (321) is provided at the lower side of the connection between the inner wall of the through hole (32) and the annular lip (33).

9. The water trap and squat toilet connection structure according to claim 6, characterized in that: The top surface of the connecting body (31) is provided with at least one sealing protrusion (313) of an annular structure, and the sealing protrusion (313) is coaxial with the through hole (32).

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