Nut assembly, main flushing connector and closestool

Abstract

The utility model discloses a nut assembly, a main flushing connector and a closestool, the main flushing connector comprises a nut assembly and a connector main body, and the nut assembly comprises a mounting nut, a locking mechanism and an unlocking mechanism; the mounting nut is provided with a mounting cavity; the locking mechanism is arranged in the mounting cavity, and a mounting area and an elastic locking part for controlling the mounting area to shrink or expand outwards are arranged on the locking mechanism; the unlocking mechanism is movably arranged at one end of the mounting cavity of the mounting nut, the unlocking mechanism is provided with an unlocking part used for releasing the locking state of the elastic locking part, one end of the mounting nut is connected with the connector body, and one end of the connector body extends into the mounting cavity of the mounting nut. When the connecting pipe and the main punch connector are installed, a direct insertion mode can be adopted for installation, after the connecting pipe and the main punch connector are installed in place, the elastic locking part of the locking mechanism automatically presses the connecting pipe, installation is convenient and reliable, cost is low, and the installation nut is provided with the installation cavity so that space can be simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of bathrooms, in particular to a main flush joint, a nut assembly thereof and a toilet. Background Art

[0002] The existing toilet flushing system is provided with a brush ring at the bottom and a main flush at the bottom. The main flush joint at the bottom is often locked to the toilet by installing a nut, and then the connecting pipe is locked to the main flush joint by a throat clamp. Due to the small space at the bottom of the toilet, it is inconvenient to operate when locking with a throat clamp. At the same time, the method of locking the connecting pipe with a throat clamp is prone to uneven force on the connecting pipe, resulting in leakage of the connecting pipe.

[0003] In view of this, the present invention is conceived in depth to solve the many deficiencies and inconveniences caused by the imperfect design of the connection structure between the main flush joint and the connecting pipe of the existing toilet, and the present invention is developed by actively researching, improving and trial-making. Utility Model Content

[0004] The utility model aims to provide a nut assembly which is convenient for connecting with a connecting pipe.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A nut assembly comprises a mounting nut, a locking mechanism and an unlocking mechanism;

[0007] One end of the mounting nut is provided with a mounting cavity;

[0008] The locking mechanism is arranged in the installation cavity, and is provided with an installation area and an elastic locking portion for controlling the shrinkage or expansion of the installation area, and forms a locking state when it is tightened;

[0009] The unlocking mechanism is movably arranged at one end of the mounting cavity of the mounting nut, and the unlocking mechanism is provided with an unlocking part for releasing the locking state of the elastic locking part.

[0010] Furthermore, the nut assembly includes an upper limit plate and a lower limit plate, which are respectively arranged in the installation cavity, and the locking mechanism is arranged between the upper limit plate and the lower limit plate, and the lower limit plate is fixedly connected to the installation nut.

[0011] Furthermore, a corresponding protrusion and a groove are provided between the mounting nut and the lower limit, and the lower limit piece is fixed to the mounting nut through the cooperation of the protrusion and the groove, and the upper limit piece is limited on the cavity wall of the mounting cavity.

[0012] Furthermore, the locking mechanism is a retaining ring, the installation area is set at the center of the retaining ring, and a plurality of spring plates are evenly spaced and arranged on the inner side of the retaining ring toward the installation area, and the plurality of spring plates constitute the elastic locking part, and each spring plate is inclined relative to the retaining ring; one end of the unlocking mechanism is inserted into the installation cavity and is provided with a control slope smaller than the inner diameter of the retaining ring, and the control slope is the unlocking part.

[0013] Furthermore, one end of the unlocking mechanism extending into the installation cavity is connected to the lower limit plate, the unlocking mechanism is provided with a limit step, the lower limit plate has a limit card platform corresponding to the limit step, the unlocking mechanism is provided with a movable section below the limit step, the outer diameter of the movable section is smaller than the inner diameter of the lower limit plate, and the unlocking mechanism is provided with a stop edge at the bottom end of the movable section, the outer diameter of which is larger than the inner diameter of the lower limit plate.

[0014] Another object of the utility model is to provide a main punch joint that is convenient to connect with a connecting pipe.

[0015] In order to achieve the above purpose, the solution of the utility model is:

[0016] A main punch joint comprises a joint body and a nut assembly; one end of the mounting nut is connected to the joint body, one end of the joint body extends into a mounting cavity of the mounting nut, and the locking mechanism is located outside the joint body.

[0017] Furthermore, the connector body is a T-shaped structure having a connector cap and a connecting section, the connecting section is provided with an external thread, the mounting nut is provided with an internal thread corresponding to the external thread, and the mounting nut is detachably locked on the connector body.

[0018] Furthermore, a ceramic piece is provided between the mounting nut and the joint cap, a sealing ring is provided between the ceramic piece and the joint cap, a sealing flat gasket is provided between the ceramic piece and the mounting nut, and the ceramic piece is provided with an internal thread corresponding to the external thread of the joint body.

[0019] Another object of the utility model is to provide a toilet to solve the problem of inconvenient operation when locking the main flush joint and the connecting pipe of the toilet in the prior art.

[0020] In order to achieve the above purpose, the solution of the utility model is:

[0021] A toilet comprises the main flush joint and a connecting pipe, wherein the connecting pipe is inserted into a joint body in a mounting cavity of a mounting nut, and after installation, the connecting pipe is located between a locking portion of a locking mechanism and the joint body.

[0022] Furthermore, the connecting pipe is interference fit with the joint body, the connecting pipe is a hose, an elastic seal is provided between the connecting pipe and the joint body, and the elastic seal is provided on the outer ring of the connecting pipe or on the inner ring of the connecting pipe.

[0023] After adopting the above structure, when the main punch joint of the utility model is connected with the connecting pipe, the connecting pipe is directly inserted from the installation cavity of the installation nut to the outer periphery of the joint body. When plugged into the position of the locking mechanism, the elastic locking part expands outward to enlarge the installation area, which is convenient for the insertion of the connecting pipe. When the connecting pipe is plugged into place, the elastic locking part automatically shrinks and presses the outer periphery of the connecting pipe against the joint body. After installation, the elastic locking part of the locking mechanism is now located at the outer ring matching section of the connecting pipe and the joint body. At this time, the connecting pipe is elastically squeezed and locked inward by the elastic locking part. At the same time, the inner ring of the connecting pipe is limited by the outer ring of the joint body, so that the connecting pipe will not deform inward and cause locking failure. Compared with the existing throat clamp locking method, after the connecting pipe of the utility model is inserted into the joint body, there is no need to perform hoop action in the narrow installation space, but it is automatically locked by the elastic locking part of the locking mechanism, so the operation is more convenient and quick. The installation cavity of the installation nut can simplify the installation space and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an exploded schematic diagram of the utility model.

[0025] Figure 2 It is a schematic diagram of the combined state of the utility model.

[0026] Figure 3 It is a stereoscopic diagram of the installation nut of the utility model.

[0027] Figure 4 This is a three-dimensional diagram of the installation nut of the utility model from another direction.

[0028] Figure 5 It is a three-dimensional diagram of the locking spring of the utility model.

[0029] Figure 6 It is a three-dimensional view of the locking spring of the utility model from another direction.

[0030] Figure 7 It is a schematic diagram of the assembly action of the connector body and the nut assembly of the utility model.

[0031] Figure 8 for Figure 7 sectional view of .

[0032] Fig. 9 It is a schematic diagram of the structure of the joint body and the nut assembly after being assembled in the utility model.

[0033] Fig.10 for Fig. 9 sectional view of .

[0034] Fig.11 This is a cross-sectional view of the installation action of the main punch joint and the connecting pipe of the utility model.

[0035] Fig.12 This is a cross-sectional view of the main punch joint and the connecting pipe after installation.

[0036] Description of labels:

[0037] 1. Connector body; 11. Connector cap; 12. Connecting section; 13. External thread; 14. Ceramic part;

[0038] 15. Sealing ring; 16. Sealing flat gasket;

[0039] 2. Nut assembly; 21. Mounting nut; 211. Mounting cavity; 212. Internal thread;

[0040] 22. locking mechanism; 221. mounting area; 222. elastic locking portion; 223. snap ring;

[0041] 23. unlocking mechanism; 231. unlocking part; 232. limiting step; 233. movable section; 234. stop edge;

[0042] 24. Upper limit plate; 25. Lower limit plate; 251. Limit card table;

[0043] 3. Connecting pipe; 4. Elastic sealing part. DETAILED DESCRIPTION

[0044] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] like Figure 1 and Figure 2As shown, the utility model discloses a main flush joint for use in a toilet, which includes a joint body 1 and a nut assembly 2, the nut assembly 2 includes a mounting nut 21, a locking mechanism 22 and an unlocking mechanism 23, one end of the mounting nut 21 is connected to the joint body 1, and the other end is provided with a mounting cavity 211, the locking mechanism 22 is provided with a mounting area 221 and an elastic locking portion 222 for controlling the tightening or expansion of the mounting area 221, the unlocking mechanism 23 is movably arranged at one end of the mounting nut, the unlocking mechanism 23 is provided with an unlocking portion 231 for controlling the elastic locking portion 222, one end of the joint body 1 extends into the mounting cavity 211 of the mounting nut 21, and the locking mechanism 22 is arranged in the mounting cavity on the outer periphery of the joint body 1.

[0047] When the main punch connector of the utility model is connected to the connecting pipe 3, the connecting pipe 3 is directly inserted from the installation cavity 211 of the installation nut 21 to the outer periphery of the connector body 1. When plugged into the position of the locking mechanism 22, the elastic locking portion 222 expands outward to enlarge the installation area 221, which is convenient for inserting the connecting pipe 3. When the connecting pipe 3 is plugged into place, the elastic locking portion 222 automatically shrinks to press the outer periphery of the connecting pipe 3 against the connector body 1. After installation, the elastic locking portion 222 of the locking mechanism 22 is located at the outer ring matching section of the connecting pipe 3 and the connector body 1. At this time, the connecting pipe 3 is elastically squeezed and locked inward by the elastic locking portion 222, and the inner ring of the connecting pipe 3 is limited by the outer ring of the connector body 1, so that the connecting pipe 3 will not deform inward and cause locking failure.

[0048] like Figure 1 As shown, in this embodiment, the connector body 1 is a T-shaped structure having a connector cap 11 and a connecting section 12, the connecting section 12 is provided with an external thread 13, the mounting nut 21 is provided with an internal thread 212 corresponding to the external thread 13, and the mounting nut 21 is detachably locked on the connector body 1. A ceramic part 14 is provided between the mounting nut 21 and the connector cap 11, a sealing ring 15 is provided between the ceramic part 14 and the connector cap 11, and a sealing flat gasket 16 is provided between the ceramic part 14 and the mounting nut 21. The connecting section 12 of the connector body 1 passes through the sealing ring 15 and the ceramic part 14 and extends into the mounting cavity 211 of the mounting nut 21, so that the internal thread 212 of the mounting nut 21 and the external thread 13 of the connecting section 12 are locked together.

[0049] like Figure 3 and Figure 4 As shown, the internal thread 212 is provided at one end of the mounting nut 21 , and the mounting cavity 211 is integrally formed at the other end of the mounting nut 21 . The mounting cavity 211 is integrally formed with the mounting nut 21 , which helps to save costs and simplify space.

[0050] like Figure 1As shown, in order to facilitate the installation of the locking mechanism 22, the nut assembly 2 also includes an upper limit plate 24 and a lower limit plate 25, and the upper limit plate 24 and the lower limit plate 25 are respectively arranged in the installation cavity 211, and the locking mechanism 22 is arranged between the upper limit plate 24 and the lower limit plate 25, and the lower limit plate 25 is fixedly connected to the installation nut 21. In this embodiment, corresponding protrusions and grooves are arranged between the installation nut 21 and the lower limit plate 25, and the lower limit plate 25 is fixed to the installation nut 21 through the cooperation of the protrusions and the grooves. The upper limit plate 24 is limited on the cavity wall of the installation cavity 211, and the locking mechanism 22 can be firmly installed in the installation cavity 211 through the upper limit plate 24 and the lower limit plate 25, so as to avoid the locking mechanism 22 from tilting and causing locking failure.

[0051] like Figure 5 and Figure 6 As shown, in this embodiment, the locking mechanism 22 is a snap ring 223, the center of the snap ring 223 is provided with the installation area 221, the snap ring 223 is provided with a plurality of spring pieces at equal intervals toward the inner side of the installation area, and the plurality of spring pieces constitute the elastic locking portion 222, each spring piece is arranged obliquely relative to the snap ring 223, and when installed, the inclined surface of the spring piece faces one end of the joint cap 11 of the joint body 1, so as to facilitate the installation of the connecting pipe 3. The purpose of the locking mechanism 22 is to firmly press the outer periphery of the connecting pipe 3 onto the joint body 1, so in addition to the structure of the snap ring 223 cooperating with the spring piece, the locking mechanism 22 can also be implemented by a structure of a spring pushing the locking portion.

[0052] like Figure 1 As shown, one end of the unlocking mechanism 23 is inserted into the installation cavity 211 and connected with the lower limit plate 25. The end of the unlocking mechanism 23 inserted into the installation cavity 211 is provided with a control inclined surface smaller than the inner diameter of the retaining ring 223. The control inclined surface is the unlocking portion 231. A limiting step 232 is provided at the bottom end of the control inclined surface. The lower limit plate 25 has a limiting clamping platform 251 corresponding to the limiting step 232. The limiting step 232 cooperates with the limiting clamping platform 251 to prevent the unlocking mechanism 23 from being separated from the mounting nut 21. The unlocking mechanism 23 is provided with a movable section 233 below the limiting step 232. The outer diameter of the movable section 233 is smaller than the inner diameter of the lower limit plate 25. The unlocking mechanism 23 is provided with a stop edge 234 with an outer diameter larger than the inner diameter of the lower limit plate 25 at the bottom end of the movable section 233 to limit the movable range of the unlocking mechanism 23. When the connecting pipe 3 installed on the main punch joint needs to be disassembled, due to the locking of the locking mechanism 22, the connecting pipe 3 cannot be pulled out directly. At this time, the unlocking mechanism 23 can be pushed toward the locking mechanism 22, so that the control inclined surface of the unlocking mechanism 23 pushes the spring pieces (i.e., the elastic locking portion 222) of the retaining ring 223 outward, thereby increasing the diameter of the installation area 221 and releasing the locking effect on the outer periphery of the connecting pipe 3. Then the connecting pipe 3 can be directly pulled out to remove the connecting pipe.

[0053] The connection tube 3 and the joint body 1 preferably adopt interference fit to achieve a certain sealing fit. Preferably, an elastic seal 4 may be provided between the connection tube 3 and the joint body 1. The elastic seal 4 may be provided on the outer ring of the connection tube 3 or on the inner ring of the connection tube 3. When provided on the outer ring of the connection tube 3, the connection tube 3 can be compressed around the connection tube 3 and the joint body 1 through deformation to achieve uniform compression and sealing fit; when provided on the inner ring of the connection tube 3, the sealing fit between the connection tube 3 and the joint body 1 is directly achieved by the elastic seal 4. The elastic seal 4 may be an O-RING or a triangular pad or other structures.

[0054] like Figures 7 to 10 As shown, when the main punch joint of the utility model is installed, the elastic seal 4, the upper limit plate 24, the locking mechanism 22, the lower limit plate 25 and the unlocking mechanism 23 are installed in sequence on the installation cavity 211 of the installation nut 21 to form a nut assembly 2, and the ceramic part 14 is sealed and fixed at one end of the joint cap 11 of the joint body 1 to form two components; then the joint body 1 is inserted into the nut assembly 2, and the two components are fixedly connected together through the external thread of the joint body 1 and the internal thread of the installation nut 21.

[0055] like Fig.11 and Fig.12 As shown, when installing the connecting tube 3, the connecting tube 3 is directly inserted from the bottom of the nut assembly 2, so that the inner ring of the connecting tube 3 is inserted into the outer ring of the joint body 1, and the spring piece of the locking mechanism 22 is deformed outward until the connecting tube is installed in place. After installation, the spring piece of the locking mechanism 22 is located at the matching section between the connecting tube 3 and the outer ring of the joint body 1. At this time, the connecting tube 3 is elastically squeezed and locked inward by the elastic force of the spring piece. At the same time, the inner ring of the connecting tube 3 is limited by the outer ring of the joint body 1 so that the connecting tube 3 will not deform inward and cause locking failure.

[0056] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A nut assembly, characterized in that: include: Install nuts, locking mechanisms and unlocking mechanisms; One end of the mounting nut is provided with a mounting cavity; The locking mechanism is arranged in the installation cavity, and is provided with an installation area and an elastic locking portion for controlling the shrinkage or expansion of the installation area, and forms a locking state when it is tightened; The unlocking mechanism is movably arranged at one end of the mounting cavity of the mounting nut, and the unlocking mechanism is provided with an unlocking part for releasing the locking state of the elastic locking part.

2. The nut assembly according to claim 1, characterized in that: The nut assembly includes an upper limit plate and a lower limit plate, which are respectively arranged in the installation cavity, and the locking mechanism is arranged between the upper limit plate and the lower limit plate, and the lower limit plate is fixedly connected to the installation nut.

3. The nut assembly according to claim 2, characterized in that: A corresponding protrusion and a groove are arranged between the mounting nut and the lower limit, and the lower limit piece is fixed on the mounting nut through the cooperation of the protrusion and the groove, and the upper limit piece is limited on the cavity wall of the mounting cavity.

4. The nut assembly according to claim 2, characterized in that: The locking mechanism is a retaining ring, the installation area is set at the center of the retaining ring, and a plurality of spring sheets are arranged at equal intervals on the inner side of the retaining ring toward the installation area. The plurality of spring sheets constitute the elastic locking part, and each spring sheet is arranged obliquely relative to the retaining ring; one end of the unlocking mechanism is inserted into the installation cavity and is provided with a control inclined surface smaller than the inner diameter of the retaining ring, and the control inclined surface is the unlocking part.

5. The nut assembly according to claim 4, characterized in that: One end of the unlocking mechanism extending into the installation cavity is connected to the lower limit plate, the unlocking mechanism is inserted with a limit step, the lower limit plate has a limit clamp corresponding to the limit step, the unlocking mechanism is provided with a movable section below the limit step, the outer diameter of the movable section is smaller than the inner diameter of the lower limit plate, and the unlocking mechanism is provided with a stop edge at the bottom end of the movable section, the outer diameter of which is larger than the inner diameter of the lower limit plate.

6. A main punch joint, characterized in that: It comprises a joint body and a nut assembly as described in any one of claims 1 to 5; one end of the mounting nut is connected to the joint body, one end of the joint body extends into the mounting cavity of the mounting nut, and the locking mechanism is located on the outside of the joint body.

7. The main punch joint according to claim 6, characterized in that: The connector body is a T-shaped structure having a connector cap and a connecting section. The connecting section is provided with an external thread. The mounting nut is provided with an internal thread corresponding to the external thread. The mounting nut is detachably locked on the connector body.

8. The main punch joint according to claim 7, characterized in that: A ceramic piece is arranged between the mounting nut and the joint cap, a sealing ring is arranged between the ceramic piece and the joint cap, a sealing flat washer is arranged between the ceramic piece and the mounting nut, and the ceramic piece is provided with an internal thread corresponding to the external thread of the joint body.

9. A toilet, characterized in that: It comprises a connecting pipe and a main punch joint as described in any one of claims 6 to 8, wherein the connecting pipe is inserted into a joint body in the mounting cavity of the mounting nut, and after installation, the connecting pipe is located between the locking portion of the locking mechanism and the joint body.

10. The toilet according to claim 9, characterized in that: The connecting pipe is interference fit with the joint body, the connecting pipe is a hose, an elastic seal is arranged between the connecting pipe and the joint body, and the elastic seal is arranged on the outer ring of the connecting pipe or on the inner ring of the connecting pipe.

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