Silent lower flushing structure of closestool

Abstract

The utility model provides a mute lower flushing structure of a closestool. The flushing structure is installed in an installation hole of a water storage cavity of the closestool in a sealed mode. The inner connecting ring part is provided with a first flushing hole, the outer connecting pipe part is provided with a second flushing hole communicated with the first flushing hole, and the hole wall of the first flushing hole is provided with a pressurizing slope which is gradually shrunk in the flushing flow direction of the bottom flushing water so that the bottom flushing water can be pressurized and flushed. And the circulation caliber of the water outlet A of the first flushing hole is smaller than that of the water inlet B of the second flushing hole. The circulation caliber of the water outlet A of the first flushing hole is designed to be smaller than the circulation caliber of the water inlet B of the second flushing hole, so that only the bottom flushing water pressure can be increased, and the flushing force is increased; in addition, the water outlet amount of bottom flushing water can be guaranteed, the bottom flushing water noise is low in the water outlet process, and the user experience is good.

Description

Technical Field

[0001] The utility model relates to a silent down-flushing structure for a toilet. Background Art

[0002] The bottom flush nozzle of the toilet helps to improve the sewage discharge efficiency of the toilet, and can help to quickly discharge the sewage into the toilet by spraying water.

[0003] The related art application number CN201822164782.9 discloses a metal nozzle for flushing water under an intelligent toilet, including a nozzle head. The bottom surface of the nozzle head is provided with a nozzle body cast integrally therewith. The outer diameter of the nozzle body is 21.9 mm, and an inner hole with a diameter of 15.3 mm is opened at the end thereof. A first waterproof buffer slope for guiding water flow and enhancing flushing force is opened at 4.27 mm inside the inner hole. The first waterproof buffer slope is 23.02 mm long and the top surface is close to the center line of the nozzle body. The side of the flushing slope is set in an arc shape with a radius of 172mm. The top of the above-mentioned first waterproof buffer slope is provided with a second waterproof buffer slope to further guide the water flow and enhance the flushing force. The side of the second waterproof buffer slope is set in an arc shape with a radius of 210.14mm; the top surface of the above-mentioned nozzle head is provided with a semicircular water spray outlet for spraying water. The downward depth of the water spray outlet is 1.34mm, and the bottom surface of the water spray outlet is connected to the top of the second waterproof buffer slope. The outer circle radius of the above-mentioned water spray outlet is 7.5mm, the inner circle radius is 5.7mm, and semicircular arcs are set at both ends of the water spray outlet.

[0004] The above-mentioned nozzle has the following problems during actual flushing: when a large amount of bottom flush water from the water inlet pipe flows from the metal nozzle into the toilet water storage chamber for flushing, due to the narrow water spray port and the sharp decrease in the flow diameter from the inner hole to the water spray hole, the process of the bottom flush water flowing out of the water spray hole will produce a huge flushing noise, and the amount of bottom flush water delivered to the water storage chamber per unit time is also relatively small, which cannot achieve a good flushing effect. Utility Model Content

[0005] The utility model provides a silent downward flushing structure for a toilet, which can effectively solve the above problems.

[0006] The utility model is achieved in this way:

[0007] A silent bottom flushing structure for a toilet, which is sealed and installed in a mounting hole of a toilet water storage chamber; the flushing structure includes a bottom flushing pipe, a gasket, a nut ring and a water-sealing rubber gasket; the bottom flushing pipe includes an integrally formed inner connecting ring portion and an outer connecting pipe portion, the inner side of the inner connecting ring portion contacts the edge surface of the mounting hole, and the outer connecting pipe portion passes through the mounting hole and is plugged and installed in the water inlet pipe; the inner connecting ring portion is provided with a first flushing hole, and the outer connecting pipe portion is provided with a second flushing hole communicating with the first flushing hole, the hole depth of the second flushing hole being greater than the hole depth of the first flushing hole; a pressurizing slope surface is provided on the wall of the first flushing hole, which is gradually contracted along the bottom flushing water flow direction to increase the pressure of the bottom flushing water; the flow diameter of the water outlet A of the first flushing hole is smaller than the flow diameter of the water inlet B of the second flushing hole.

[0008] As a further improvement, an angle α is formed between the boost slope and the axis of the bottom flush pipe, and the angle α is in the range of 10 to 15 degrees.

[0009] As a further improvement, the water seal gasket has an integrally formed abutment portion for contacting the inner ring portion and a sealing portion with a conical structure for contacting the peripheral side of the external tube portion. The diameter of the abutment portion is larger than the aperture of the mounting hole, and the diameter of the sealing portion is smaller than the aperture of the mounting hole.

[0010] As a further improvement, the water seal rubber pad has a through hole in the middle for the external pipe portion to pass through; the peripheral side of the external pipe portion has a threaded section for the nut ring to be threadedly engaged.

[0011] As a further improvement, the outer tube portion has a protrusion around its tail end to form a plug-in ring with a guide ring surface. When the outer tube portion is inserted into the water inlet pipe, the guide ring surface slides away from the inner wall of the water inlet pipe, so that the outer tube portion can be guided and inserted into the water inlet pipe.

[0012] As a further improvement, a clamp is installed on the peripheral wall of the external pipe end to fix the external pipe inside the water inlet pipe, and a deformation ring groove is formed between the threaded section and the plug-in ring to face the clamp.

[0013] The beneficial effects of the utility model are:

[0014] This application designs the flow diameter of the water outlet A of the first flushing hole to be smaller than the flow diameter of the water inlet B of the second flushing hole, which not only increases the water pressure of the bottom flushing and the flushing force; but also ensures the water volume of the bottom flushing, has low noise during the water outlet process, and provides a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model flushing structure inserted into the water inlet pipe;

[0016] Figure 2 This is an exploded diagram of the assembly relationship of the various components of the flushing structure of the utility model Figure 1 ;

[0017] Figure 3 This is an exploded diagram of the relationship between the components of the flushing structure of the utility model and the nozzle assembly. Figure 2 ;

[0018] Figure 4 It is a cross-sectional view of the flushing structure of the utility model installed on the installation hole of the toilet water storage chamber.

[0019] The accompanying drawings are marked as follows:

[0020] 10. Toilet; 101. Mounting hole;

[0021] 20. Bottom flush pipe; 21. Internal connecting ring; 211. First flush hole; A. Water outlet; 212. Pressurized slope; 22. External connecting pipe; 221. Second flush hole; B. Water inlet; 222. Threaded section; 223. Connecting ring; 224. Deformation ring groove;

[0022] 30. Gasket;

[0023] 40. Nut ring;

[0024] 50. Water seal pad; 51. Abutment portion; 52. Sealing portion; 501. Perforation;

[0025] 60. Clamp;

[0026] 70. Water inlet pipe. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically specified.

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 4 As shown, a toilet silent bottom flushing structure is sealed and installed in the installation hole 101 of the water storage chamber of the toilet 10; the flushing structure includes a bottom flushing pipe 20, a gasket 30, a nut ring 40 and a water seal rubber pad 50, the bottom flushing pipe 20 includes an integrally formed inner ring portion 21 and an outer pipe portion 22, the inner side of the inner ring portion 21 contacts the edge surface of the installation hole 101, and the outer pipe portion 22 passes through the installation hole 101 and is plugged and installed in the water inlet pipe 70; the inner ring portion 21 A first flushing hole 211 is formed, and a second flushing hole 221 communicating with the first flushing hole 211 is formed on the external pipe portion 22. The depth of the second flushing hole 221 is greater than the depth of the first flushing hole 211. The wall of the first flushing hole 211 has a pressure-boosting slope 212 that tapers along the bottom flushing flow direction to increase the pressure of the bottom flushing water. The flow diameter of the water outlet A of the first flushing hole 211 is smaller than the flow diameter of the water inlet B of the second flushing hole 221.

[0031] The structures of the various components of the present invention are described below.

[0032] like Figure 2 and Figure 4 As shown, an angle α is formed between the boost slope 212 and the axis of the bottom flushing pipe 20, and the range of the angle α is within the range of 10 to 15 degrees. The above parameters are selected to process the boost plane, which can not only increase the water pressure and flushing force of the bottom flushing at the outlet A of the first flushing hole 211 due to the reduction of the flow diameter; but also ensure the amount of water discharged by the bottom flushing, and the bottom flushing noise is small during the water discharge process, and the user experience is good. It should be noted here that the range of α can be selected according to actual use needs. As the angle of α increases, the slope of the boost slope 212 increases, the flow diameter of the outlet A of the first flushing hole 211 decreases, the water discharge is more concentrated, and the water flow flushing force is greater. As the angle of α decreases, the slope of the boost slope 212 decreases, the flow diameter of the outlet A of the first flushing hole 211 increases, and the water discharge increases.

[0033] like Figure 2 、 Figure 3 and Figure 4As shown, the water seal gasket 50 has an integrally formed abutting portion 51 for contacting the inner ring portion 21 and a sealing portion 52 with a conical structure for contacting the circumference of the external tube portion 22. The diameter of the abutting portion 51 is larger than the diameter of the mounting hole 101, and the diameter of the sealing portion 52 is smaller than the diameter of the mounting hole 101. The water seal gasket 50 has a through hole 501 in the middle for the external tube portion 22 to pass through. The circumference of the external tube portion 22 has a threaded section 222 for the nut ring 40 to be threadedly engaged. The tail end of the external tube part 22 is convexly formed into a plug-in ring 223 with a guide ring surface. When the external tube part 22 is inserted into the water inlet pipe 70, the guide ring surface slides away from the inner wall of the water inlet pipe 70 so that the external tube part 22 can be guided and inserted into the water inlet pipe 70; a clamp 60 is installed on the peripheral wall of the pipe end of the external tube part 22 to fix the external tube part 22 inside the water inlet pipe 70, and a deformation ring groove 224 is formed between the threaded section 222 and the plug-in ring 223 and is opposite to the clamp 60.

[0034] Combine Figures 1 to 4 , the assembly of the utility model is described below.

[0035] The external pipe portion 22 of the bottom flush pipe 20 is passed through the through-hole 501 of the water seal gasket 50, and then the external pipe portion 22 is passed through the mounting hole 101 from the inside of the water storage chamber, and a gasket is inserted into the external pipe portion 22 extending out of the mounting hole 101 and the nut ring 40 and the threaded section 222 are tightened, so that the abutment portion 51 presses and fills the gap between the inner ring portion 21 and the inner edge of the mounting hole 101, the sealing portion 52 presses and fills the gap between the external pipe portion 22 and the hole wall of the mounting hole 101, and the gasket is pressed and fills the gap between the nut ring 40 and the outer edge of the mounting hole 101, thereby realizing the sealed installation of the bottom flush pipe 20 at the mounting hole 101; finally, the external pipe portion 22 is inserted into the water inlet pipe 70, and the external pipe portion 22 is locked in the water inlet pipe 70 with the clamp 60, and the installation of the flushing structure is completed.

[0036] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. A person skilled in the art may make various modifications or changes without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and be defined by the claims.

Claims

1. A silent down-flush structure for a toilet, the flush structure being sealed and mounted in a mounting hole (101) of a water storage chamber of a toilet (10); the flush structure comprising a bottom flush pipe (20), a gasket (30), a nut ring (40) and a water seal pad (50), characterized in that: The bottom flushing pipe (20) comprises an integrally formed inner ring portion (21) and an outer pipe portion (22); the inner side of the inner ring portion (21) contacts the edge surface of the mounting hole (101); the outer pipe portion (22) passes through the mounting hole (101) and is plugged into the water inlet pipe (70); the inner ring portion (21) is provided with a first flushing hole (211); the outer pipe portion (22) is provided with a second flushing hole (221) communicating with the first flushing hole (211); the hole depth of the second flushing hole (221) is greater than the hole depth of the first flushing hole (211); a pressure-increasing slope (212) is provided on the hole wall of the first flushing hole (211) and is gradually contracted along the bottom flushing flow direction so as to increase the pressure of the bottom flushing; the flow diameter of the water outlet A of the first flushing hole (211) is smaller than the flow diameter of the water inlet B of the second flushing hole (221).

2. A toilet silent down-flushing structure according to claim 1, characterized in that: An included angle α is formed between the boost slope (212) and the axis of the bottom flushing pipe (20), and the included angle α is within the range of 10 to 15 degrees.

3. The silent down-flushing structure for a toilet according to claim 1, characterized in that: The water seal rubber pad (50) comprises an integrally formed abutting portion (51) for contacting and pressing the inner connecting ring portion (21) and a sealing portion (52) having a conical structure and for contacting and pressing the circumferential side of the outer connecting pipe portion (22). The diameter of the abutting portion (51) is larger than the aperture of the mounting hole (101), and the diameter of the sealing portion (52) is smaller than the aperture of the mounting hole (101).

4. A toilet silent down-flushing structure according to claim 3, characterized in that: The middle of the water seal rubber pad (50) is provided with a through hole (501) for the external pipe part (22) to pass through; the peripheral side of the external pipe part (22) is provided with a threaded section (222) for the nut ring (40) to be screwed together.

5. The silent down-flushing structure for a toilet according to claim 4, characterized in that: The outer tube portion (22) is protruded at the rear end thereof to form a plug-in ring (223) having a guide ring surface. When the outer tube portion (22) is inserted into the water inlet pipe (70), the guide ring surface slides away from the inner wall of the water inlet pipe (70), so that the outer tube portion (22) can be guided and inserted into the water inlet pipe (70).

6. The silent down-flushing structure for a toilet according to claim 4, characterized in that: A clamp (60) is installed on the peripheral wall of the external pipe end (22) to fix the external pipe (22) inside the water inlet pipe (70), and a deformation ring groove (224) is formed between the threaded section (222) and the plug ring (223) and is opposite to the clamp (60).

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