Connecting device of deodorization closestool

Abstract

The utility model relates to the technical field of bathroom accessories, in particular to a connecting device of a deodorization closestool, which comprises a connecting piece and an interface part arranged on a blow-off pipe, the side wall of the interface part is provided with an annular flange extending inwards, the connecting piece is arranged on the interface part in a penetrating manner, one end of the connecting piece is provided with a buckle structure, and the buckle structure is clamped with the inner end face of the flange. The connecting piece is sleeved with a sealing piece, the sealing piece abuts against the outer end face of the flange, a pressing piece connected to the connecting piece in a lockable mode is arranged on one side of the sealing piece, the pressing piece enables the sealing piece to abut against the flange through lockable connection, and therefore the sealing piece and the buckle structure are matched to form sealing connection between the connecting piece and the connector portion. The sealing connection between the connecting piece and the connector part is formed through the clamping connection between the buckle structure and the flange and the pressing between the sealing piece and the flange of the connector part, so that the connection sealing between the deodorization fan and the blow-off pipe of the deodorization closestool is realized, the installation is simple, and the sealing is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of bathrooms, in particular to a connecting device for a deodorizing toilet. Background Art

[0002] In the existing deodorizing toilet, the deodorizing fan is arranged at the rear side of the toilet, and the outlet end of the deodorizing fan is connected to the sewage pipe of the toilet, and the water seal of the toilet itself is used to isolate the odor, thereby preventing the odor from being discharged into the air. In order to ensure the seal between the deodorizing fan and the sewage pipe, the connecting device used to connect the deodorizing fan and the sewage pipe is usually tightly matched with the sewage pipe, but the sewage pipe is made of ceramic, which has high hardness and very small deformation, so it will cause certain difficulties when installing the joint: if the joint is too hard, it is difficult to install; if the joint is too soft, it is difficult to ensure the seal between the deodorizing fan and the sewage pipe. Summary of the invention

[0003] The utility model aims to provide a connecting device for a deodorizing toilet, so as to solve the problem of connection sealing between a deodorizing fan and a sewage pipe of the deodorizing toilet.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is: a connecting device for a deodorizing toilet, comprising a connecting piece and an interface portion arranged on a sewage pipe, the side wall of the interface portion being provided with an annular flange extending inward, the connecting piece being passed through the interface portion, a snap-fit ​​structure being provided at one end of the connecting piece, the snap-fit ​​structure being snap-fitted with the inner end surface of the flange, a sealing piece being provided on the outer sleeve of the connecting piece, the sealing piece being abutted against the outer end surface of the flange, a pressing piece being provided on one side of the sealing piece, and the pressing piece and the connecting piece being lockably connected, the pressing piece presses the sealing piece against the flange by means of the lockable connection, so that the sealing piece and the snap-fit ​​structure cooperate to form a sealed connection between the connecting piece and the interface portion.

[0005] In one embodiment, the snap structure includes a plurality of hooks arranged at intervals, and the hook is a cantilever structure including a deformation portion and a clamping portion. One end of the deformation portion is fixedly connected to the end of the connector, and the other end of the deformation portion is provided with the clamping portion. The clamping portion protrudes from the deformation portion, and the clamping portion is used to form a clamping connection with the flange.

[0006] In one embodiment, a plane is provided on one side of the clamping portion facing the inner end surface of the flange, and the clamping portion and the flange are clamped together by the abutment of the plane with the inner end surface of the flange.

[0007] In one embodiment, the sealing member is an annular structure, and one end surface thereof is provided with an inserting portion for inserting between the connecting member and the flange.

[0008] In one embodiment, a through hole for passing the connecting piece is provided in the middle of the annular structure seal, and the plug-in portion is arranged outside the through hole. In the axial section of the seal, the section of the plug-in portion is wedge-shaped with the tip facing the inner end face of the flange, so that the plug-in portion forms an annular wedge-shaped structure.

[0009] In one embodiment, the connector is provided with an air hole, the buckle structure includes a plurality of hooks extending axially along the air hole, the hooks are arranged circumferentially along the air hole of the connector, and adjacent hooks are arranged at intervals, and the plug-in portion is an annular structure sleeved on the hooks.

[0010] In one embodiment, the outer wall of the connecting piece is provided with a first threaded structure, and the inner wall of the pressing piece is provided with a second threaded structure, and the first threaded structure cooperates with the second threaded structure to form a threaded connection between the pressing piece and the connecting piece, so that the lockable connection is a threaded connection.

[0011] In one embodiment, a positioning portion is provided at one end of the connecting member away from the snap structure, and the positioning portion is used for circumferential positioning of the connecting member. The installation of the connecting member and the pressing member is achieved by means of the circumferential positioning of the connecting member.

[0012] In one embodiment, the pressing piece is a hollow cylindrical structure, the outer wall of the pressing piece is used to connect to the deodorizing pipe, and the outer wall of the pressing piece is provided with a protrusion, and the protrusion is used to connect the deodorizing pipe and the pressing piece.

[0013] In one embodiment, the connecting member is provided with an air hole, the air hole is provided with a non-return valve, the non-return valve is rotatably connected to the inner wall of the air hole, the inner wall of the air hole is provided with a limiting portion, and the limiting portion is used to prevent the non-return valve from opening in reverse.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model forms a sealed connection between the connector and the interface part by snapping together the snap-fit ​​structure and the flange and pressing the seal member and the flange of the interface part, thereby realizing the connection seal between the deodorizing fan and the sewage pipe of the deodorizing toilet. The connector can be partially inserted into the interface part by snapping together, and a pressing seal between the seal member and the flange of the interface part is formed by means of a lockable connection between the pressing member and the connector. The installation is simple and the sealing is reliable.

[0016] 2. The hook of the cantilever structure makes it easy to install the connector, and the connector can be plugged in by virtue of the deformation of the deformation part.

[0017] 3. Since there is a gap between the hooks, the gap between the hooks can be sealed by means of the annular plug-in portion of the seal to avoid the formation of air and water leakage points in the gap, thereby ensuring the reliability of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a rear view of an embodiment of the utility model.

[0019] Figure 2 It is a partial structural stereogram of an embodiment of the utility model.

[0020] Figure 3 yes Figure 2 Exploded view of the structure shown.

[0021] Figure 4 It is a cross-sectional view of an embodiment of the utility model.

[0022] Figure 5 It is a structural diagram of a connector according to an embodiment of the present utility model.

[0023] Figure 6 It is a cross-sectional view of a seal according to an embodiment of the present utility model.

[0024] Figure 7 It is a structural diagram of a pressing piece according to an embodiment of the utility model.

[0025] Figure 8 It is a structural diagram of the anti-reverse valve plate of an embodiment of the utility model.

[0026] Among them: 1 connecting piece, 11 snap-fit ​​structure, 111 deformation part, 112 snap-fit ​​part, 12 air hole, 13 first thread structure, 14 positioning part, 15 limiting part, 2 sealing piece, 21 plug-in part, 22 through hole, 3 pressing piece, 31 second thread structure, 32 anti-slip part, 33 raised part, 4 deodorizing pipe, 5 reverse valve, 51 rotating shaft, 52 thickened part.

[0027] 100 deodorizing fan, 200 sewage pipe, 210 interface part, 211 flange. DETAILED DESCRIPTION

[0028] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] See also Figures 1 to 4As shown, the utility model discloses a connecting device for a deodorizing toilet, which is used to connect the air outlet of a deodorizing blower 100 of the deodorizing toilet to a sewage pipe 200 of the deodorizing toilet, and comprises a connecting piece 1 and an interface portion 210 arranged on the sewage pipe 200, and a side wall of the interface portion 210 is provided with an annular flange 211 extending inwardly, more specifically: the connecting piece 1 protrudes from the side wall of the interface portion 210 toward the center direction of the interface portion 210, and is penetrated by the interface portion 210, and the connecting piece 1 A snap-fit ​​structure 11 is provided at one end of the connector 1, which is snap-fitted with the inner end surface of the flange 211. A sealing member 2 is provided on the outer sleeve of the connector 1, which abuts against the outer end surface of the flange 211. A pressing member 3 is provided on one side of the sealing member 2 which is lockably connected to the connector 1. The pressing member 3 applies force to the sealing member 2 by means of the lockable connection with the connector 1 so that the sealing member 2 is pressed against the flange 211, so that the sealing member 2 and the snap-fit ​​structure 11 cooperate to form a sealed connection between the connector 1 and the interface portion 210.

[0030] It is defined that one end of the interface portion 210 located in the sewage pipe 200 is an inner end, and the other end opposite thereto is an outer end.

[0031] See also Figures 2 to 7 As shown, the buckle structure 11 includes a plurality of hooks arranged at intervals, and the hook is a cantilever structure, which includes a deformation part 111 and a clamping part 112. One end of the deformation part 111 is fixedly connected to the end of the connector 1, and the clamping part 112 is arranged at the other end of the deformation part 111. The clamping part 112 protrudes from the deformation part 111, and the clamping part 112 is used to form a clamping connection with the flange 211. The hook is a cantilever structure, and adjacent hooks are arranged at intervals. Therefore, when the connector 1 is inserted into the interface part 210, the clamping part 112 can be pressed toward the center direction of the interface part 210 by means of the elastic deformation of the deformation part 111, so as to facilitate the assembly between the connector 1 and the interface part 210. When the clamping part 112 is inserted beyond the inner end surface of the flange 211, the deformation part 111 gradually recovers to make the clamping part 112 abut against the inner end surface of the flange 211. In this example, a plane is provided on one side of the clamping portion 112 facing the inner end surface of the flange 211, and the clamping portion 112 and the flange 211 are clamped by the abutment of the plane and the inner end surface of the flange 211, that is, in the axial section of the connector 1, the clamping portion 112 is a triangular structure. In other embodiments, the clamping portion 112 can also be a barb structure, that is, in the axial section of the connector 1, the clamping portion 112 is an obliquely extended long strip structure, one end of the clamping portion 112 is fixedly connected to the end of the deformation portion 111, and the other end is at a certain distance from the deformation portion 112. At this time, the insertion of the connector 1 is achieved by relying on the elastic deformation of the clamping portion 112 toward the deformation portion 111, and the deformation of the clamping portion 112 in the direction away from the deformation portion 111 is hooked on the inner end surface of the flange 211.

[0032] The seal 2 is an annular structure, and one end face thereof is provided with an inserting portion 21 for inserting between the connector 1 and the flange 211. A through hole 22 for inserting the connector 1 is provided in the middle of the annular seal 2, and the inserting portion 21 is arranged outside the through hole 22. On the axial section of the seal 2, the section of the inserting portion 21 is a wedge with the tip facing the inner end face of the flange 211, so that the inserting portion 21 is formed into an annular wedge structure. The annular inserting portion 21 can be inserted into the gap between the connector 1 and the flange 211, thereby strengthening the sealing of the gap and preventing the seal from being poor due to the gap being too large and the size of the seal 2 being insufficient. In other embodiments, the inserting portion 21 can be other shapes besides a wedge structure, such as a quarter circle, a rectangle, or other structures that can replace the wedge on the axial section of the seal 2.

[0033] The connector 1 is provided with an air hole 12, and the hook extends axially along the air hole 12. The hook is arranged circumferentially along the air hole 12 of the connector 1, so there is a risk of leakage in the gap between the hooks, causing the sewage or odor in the sewage pipe 200 to leak out. The utility model sleeves the seal 2 on the hook, and more specifically, the plug-in part 21 is an annular structure sleeved on the hook. The annular plug-in part 21 can fill the gap between the hooks to seal the gap, and the plug-in part 21 extends toward the inner end face of the flange 211 to further improve the sealing effect.

[0034] See also Figures 3 to 5 as well as Figure 7As shown, the outer wall of the connector 1 is provided with a first thread structure 13, and the inner wall of the pressing piece 3 is provided with a second thread structure 31. The first thread structure 13 and the second thread structure 31 cooperate to form a threaded connection between the pressing piece 3 and the connector 1, so that the connection can be locked as a threaded connection. In this example, the first thread structure 13 is an external thread on the outer wall of the connector 1, and the second thread structure 31 is an internal thread on the inner wall of the pressing piece 3. The connection between the buckle structure at the end of the connector 1 and the flange 211 is unidirectional, that is, the buckle structure 11 can only prevent the connector 1 from leaving the interface part 210 in the direction of the outer end face of the flange 211, but cannot prevent the connector 1 from moving in the direction of the inner end face of the flange 211, and the pressing piece 3 is arranged on one side of the sealing piece 2 and applies force to the sealing piece 2 to press the sealing piece 2 against the outer end face of the flange 211, thereby preventing the connector 1 from moving in the direction of the inner end face of the flange 211, and realizing the sealed connection of the connector 1, the sealing piece 2 and the interface part 210. In this example, the pressure piece 3 and the connector 1 are connected by a threaded connection. As the threaded connection becomes tighter, the pressure piece 3 presses the seal 2 with greater force. The tighter the connection between the buckle structure 11 of the connector 1 and the seal 2 and the flange 211, the better the sealing effect. The threaded connection structure is simple and easy to operate. The relative positions of the buckle structure 11 and the seal 2 and the flange 211 can be infinitely adjusted, overcoming the defect of poor sealing effect caused by the low manufacturing precision of the interface part 210 made of ceramic. In other embodiments, the connector 1 and the pressure piece 3 can also be locked to form a lockable connection.

[0035] The interface portion 210 of this example is a hole directly opened on the sewage pipe 200. In other embodiments, the interface portion 210 may also be formed by an insert disposed in the sewage pipe, that is, indirectly formed on the sewage pipe 200.

[0036] See also Figures 3 to 5 As shown, since the connector 1 and the pressing piece 3 are threadedly connected, and the circumferential rotation between the connector 1 and the interface portion 210 is not restricted, the pressing piece 3 and the connector 1 may rotate synchronously and fail to lock during the installation and locking process. Therefore, the connector 1 or the pressing piece 3 needs to be fixed. In this example, a positioning portion 14 is provided at one end of the connector 1 away from the buckle structure 11. The positioning portion 14 is used for circumferential positioning of the connector 1, so that the installation of the connector 1 and the pressing piece 3 is achieved by means of the circumferential positioning of the connector. The positioning portion 14 of this example is a groove set in the connector 1. During installation, the connector 1 is fixed by a tooling fixture, and the pressing piece 3 is rotated to achieve the installation of the pressing piece 3. In order to facilitate the rotation of the pressing piece 3, the outer wall of the pressing piece 3 is also provided with a plurality of spaced anti-slip portions 32. In other embodiments, a positioning portion can also be provided on the pressing piece 3 to achieve the installation of the connector 1 and the pressing piece 3. At this time, the installation operation is to rotate the connector 1.

[0037] See also Figure 3 , Figure 4 and Figure 7 As shown, the pressing piece 3 is a hollow cylindrical structure, that is, the pressing piece 3 is a tubular structure, and the outer wall of the pressing piece 3 is used to connect the deodorizing pipe 4. The outer wall of the pressing piece 3 is provided with a protrusion 33, and the protrusion 33 is used to connect the deodorizing pipe 4 and the pressing piece 3. The deodorizing pipe 4 is a hose, which is connected to the deodorizing blower 100. The odor discharged by the deodorizing blower 100 is discharged to the air hole of the connecting piece 1 through the deodorizing pipe, and then discharged to the sewage pipe 200. The deodorizing pipe 4 is inserted into the outside of the pressing piece 3 and is fixedly connected with the protrusion 33 through elastic deformation to prevent the deodorizing pipe 4 from falling out. The protrusion 33 of this example is two circular rings, and the deodorizing pipe 4 can be sealed and connected with the pressing piece 3 through the circular rings. In other embodiments, the protrusion 33 can also be a plurality of convex points arranged at intervals.

[0038] See also Figure 4 , Figure 5 and Figure 8 As shown, the connector 1 is a tubular structure, wherein the central through hole is its air hole 12, and the air hole 12 is provided with a reversing valve 5, and the reversing valve 5 is rotatably connected to the inner wall of the air hole 12, and the inner wall of the air hole is provided with a limiting portion 15, and the limiting portion 15 is used to prevent the reversing valve 5 from opening in reverse. The limiting portion 15 in this example is a protrusion arranged on the inner wall of the air hole. Further, the reversing valve 5 is a circular valve plate, and a rotating shaft 51 is arranged on the plane formed by the valve plate, and the reversing valve 5 is rotatably connected with the air hole 12 through the rotating shaft 51. The rotating shaft 51 is arranged on the upper half of the reversing valve 5, and the lower half of the reversing valve 5 is provided with a thickened portion 52 to increase the weight of the lower half of the reversing valve, so that when the deodorizing blower is not working, the reversing valve 5 can naturally droop and close the flow of gas and water on both sides of the reversing valve 5, so as to avoid the odor or sewage in the sewage pipe 200 from flowing back.

[0039] The assembly process of the connecting device is as follows: the end where the snap structure 11 of the connecting piece 1 is located is inserted into the interface part 210, and the connecting piece 1 is passed through the interface part 210 by means of the deformation of the deformation part 111 of the hook and the inclined surface of the snap-on part 112, until the snap-on part 112 passes through the inner end face of the flange 211; at this time, one end face of the sealing piece 2 abuts against the outer end face of the flange 211, and the plug-in part 21 of the sealing piece 2 is located in the gap between the flange 211 and the hook; the pressing piece 3 is put on the outside of the connecting piece 1, and the pressing piece 3 is moved toward the direction of the flange 211 through a threaded connection until the sealing piece 2 is deformed and pressed against the outer end face of the flange 211 and the snap-on part 112 abuts against the inner end face of the flange 211, and a sealed connection is formed between the interface part 210, the connecting piece 1 and the sealing piece 2; the deodorizing pipe 4 connected to the deodorizing blower 100 is inserted outside the pressing piece 3, and forms a sealed connection with the pressing piece 3.

[0040] The working process of the utility model is as follows: when the deodorizing fan 100 is working for deodorizing, the deodorizing fan 100 absorbs the odor in the toilet and discharges it into the deodorizing pipe 4, the airflow generated by the deodorizing fan 100 blows open the anti-reverse valve 5 (the anti-reverse valve 5 rotates in the clockwise direction in the figure), and the odor passes through the deodorizing fan 100, the deodorizing pipe 4, and the anti-reverse valve 5 and is then discharged into the sewage pipe 200; when the deodorizing fan 100 stops, the anti-reverse valve 5 closes under gravity, and under the action of the limiting part 15, the air hole 12 of the connecting part 1 is closed to prevent the odor from flowing back. At this time, if the toilet is flushed, the air and water in the sewage pipe 200 will impact the anti-reverse valve 5. The existence of the limiting part 15 can prevent the anti-reverse valve 5 from being blown open in the reverse direction (the anti-reverse valve 5 rotates in the counterclockwise direction in the figure), thereby resisting the air and water impact.

[0041] Although the present invention is specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that the remaining undescribed portions are prior art, and that various changes made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims shall fall within the scope of protection of the present invention.

Claims

1. A connecting device for a deodorizing toilet, characterized in that: It includes a connecting piece and an interface part arranged on a sewage pipe, the side wall of the interface part is provided with an annular flange extending inwardly, the connecting piece is passed through the interface part, one end of the connecting piece is provided with a snap-fit ​​structure, the snap-fit ​​structure forms a snap connection with the inner end surface of the flange, a sealing piece is provided on the outer sleeve of the connecting piece, the sealing piece abuts against the outer end surface of the flange, a pressing piece is provided on one side of the sealing piece, and the pressing piece and the connecting piece are lockably connected, the pressing piece presses the sealing piece against the flange by means of the lockable connection, so that the sealing piece and the snap-fit ​​structure cooperate to form a sealed connection between the connecting piece and the interface part.

2. A connecting device for a deodorizing toilet according to claim 1, characterized in that: The snap structure includes a plurality of hooks arranged at intervals, and the hook is a cantilever structure including a deformation portion and a clamping portion. One end of the deformation portion is fixedly connected to the end of the connector, and the other end of the deformation portion is provided with the clamping portion. The clamping portion protrudes from the deformation portion, and the clamping portion is used to form a clamping connection with the flange.

3. A connecting device for a deodorizing toilet according to claim 2, characterized in that: A plane is provided on one side of the clamping portion facing the inner end surface of the flange, and the clamping of the clamping portion and the flange is achieved by abutting the plane against the inner end surface of the flange.

4. A connecting device for a deodorizing toilet according to claim 1, characterized in that: The sealing member is an annular structure, and one end surface thereof is provided with an inserting portion for inserting between the connecting member and the flange.

5. A connecting device for a deodorizing toilet according to claim 4, characterized in that: The middle part of the annular seal is provided with a through hole for passing the connecting piece, and the plug-in portion is arranged outside the through hole. In the axial section of the seal, the section of the plug-in portion is wedge-shaped with the tip facing the inner end face of the flange, so that the plug-in portion forms an annular wedge-shaped structure.

6. A connecting device for a deodorizing toilet according to claim 4, characterized in that: The connector is provided with an air hole, the buckle structure comprises a plurality of hooks extending axially along the air hole, the hooks are arranged circumferentially along the air hole of the connector, and adjacent hooks are arranged at intervals, and the plug-in portion is an annular structure sleeved on the hooks.

7. A connecting device for a deodorizing toilet according to claim 1, characterized in that: The outer wall of the connecting piece is provided with a first thread structure, and the inner wall of the pressing piece is provided with a second thread structure. The first thread structure cooperates with the second thread structure to form a threaded connection between the pressing piece and the connecting piece, so that the lockable connection is a threaded connection.

8. A connecting device for a deodorizing toilet according to claim 7, characterized in that: A positioning portion is provided at one end of the connecting piece away from the buckle structure. The positioning portion is used for circumferential positioning of the connecting piece. The installation of the connecting piece and the pressing piece is achieved by means of the circumferential positioning of the connecting piece.

9. The connecting device of a deodorizing toilet according to claim 1, characterized in that: The pressing piece is a hollow cylindrical structure, the outer side wall of the pressing piece is used to connect the deodorizing pipe, and the outer side wall of the pressing piece is provided with a protrusion, and the protrusion is used to connect the deodorizing pipe and the pressing piece.

10. The connecting device of a deodorizing toilet according to claim 1, characterized in that: The connecting piece is provided with an air hole, the air hole is provided with a reversal valve, the reversal valve is rotatably connected to the inner wall of the air hole, the inner wall of the air hole is provided with a limiting part, and the limiting part is used to prevent the reversal valve from opening in reverse.

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