Leakage-proof odor-resistant closestool with good sealing performance

Abstract

A leakage-proof and odor-resistant closestool with good sealing performance comprises a closestool body, a water inlet valve connected to a water inlet of the closestool body and a blow-down valve connected to a water outlet of the closestool body, the blow-down valve comprises a valve body, a valve cover, a valve rod and a sealing ring, a sewage inlet communicated with the water outlet is formed in the valve body, the blow-down valve further comprises a sealing sleeve, and the sealing sleeve is sleeved with the valve cover. One end of the sealing sleeve is arranged on the sewage inlet in a sleeved mode, the other end of the sealing sleeve is arranged on the water outlet in a sleeved mode, a hard leakage-proof ring is arranged on the inner side of the sealing sleeve in a sleeved mode, and when the water outlet is closed by the blow-down valve, a sealing ring of the blow-down valve covers the leakage-proof ring in a sealing mode. The drainage valve has the advantages that the connection sealing performance between the drainage valve and the drainage opening of the closestool is improved, water leakage is avoided, meanwhile, due to the fact that the leakage-proof ring is of a hard structure, the appearance can be kept after long-time use, the service life is long, and deformation is not prone to occurring, the sealing ring is well attached to the leakage-proof ring all the time, the sealing sealing performance of the drainage opening is improved, and the service life of the drainage opening is prolonged. Water leakage and odor backflow are avoided, and a good use effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of toilet manufacturing, in particular to a leak-proof and odor-proof toilet with good sealing performance. Background Art

[0002] The original Chinese utility model patent with application number CN202021263286.X and titled "A valve structure for a water-saving toilet" disclosed a valve structure for a water-saving toilet, including a valve body, a sewage inlet is arranged at one end of the valve body, a sewage outlet is arranged at the bottom of the valve body, and a valve is arranged in the inner cavity of the valve body. The valve is rotatably connected to the valve body through a valve stem, the upper end of the valve stem extends out of the valve body and is connected to a control part that can pull the traction line through a traction line. A return mechanism is also arranged on the valve body. The valve consists of a hard valve disc and a soft sealing ring, the sealing ring is connected to the outer edge of the valve disc, the valve disc is connected to the valve stem, the diameter of the valve disc is smaller than the diameter of the sewage inlet, and the diameter of the sealing ring is larger than the diameter of the sewage inlet. When the external force on the traction line is lost, the front end of the valve disc extends into the sewage inlet and causes the sealing ring to touch the sewage inlet. The advantages of the utility model are that the sealing ring of the valve can fit tightly on the sewage inlet, thereby closing the sewage inlet, with good sealing effect, and it is not easy for sewage and odor to overflow. However, when the valve structure closes the sewage inlet, the sealing ring touches the ferrule of the sealing sleeve, and the ferrule is a soft structure, which is easy to deform after a period of use, resulting in reduced sealing effect of the sealing ring. In addition, when the valve structure opens the sewage inlet, it is necessary to pull the pull rope to open the sewage inlet, which is not labor-saving enough and there is room for improvement. Therefore, the valve structure needs to be further improved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a leak-proof and odor-proof toilet with good sealing performance and good odor-proof effect when the toilet drain outlet is closed in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: the leak-proof and odor-proof toilet with good sealing performance includes a toilet body, a water inlet valve connected to the water inlet of the toilet body, and a sewage valve connected to the drain outlet of the toilet body, the sewage valve includes a valve body, a valve cover, a valve stem, and a sealing ring, and a sewage inlet connected to the drain outlet is provided on the valve body. It is characterized in that: the sewage valve also includes a sealing sleeve, one end of the sealing sleeve is sleeved on the sewage inlet, and the other end of the sealing sleeve is sleeved on the drain outlet, and a hard leak-proof ring is sleeved on the inner side of the sealing sleeve. When the sewage valve closes the drain outlet, the sealing ring of the sewage valve seals on the leak-proof ring.

[0005] As an improvement, a valve stem driver may preferably be provided on the valve cover, and the valve stem driver is connected to a power source and a switch through a line. The switch is a button switch or an induction switch controlled by sensor detection. The driving rod of the valve stem driver can be connected to the valve stem in a linkage manner.

[0006] As a further improvement, the valve stem driver may preferably include a protective shell, a motor, a driving rod, and a transmission pin. The protective shell is connected to the valve cover, the motor is arranged in the protective shell, the motor is connected to the power supply and the switch through the wire passing through the protective shell, the motor is connected to the driving rod by transmission, the driving rod extends out of the protective shell, the transmission pin is connected to the end of the driving rod extending out of the protective shell, a waist-shaped hole is arranged on the upper part of the valve stem, the transmission pin is inserted in the waist-shaped hole, and when the driving rod is extended and retracted back and forth relative to the motor, the driving rod drives the transmission pin to move and thus drives the valve stem to swing accordingly. The protective shell can protect the motor and extend the service life of the motor.

[0007] As a further improvement, the upper part of the valve stem can be preferably connected to the valve switch stem of the water inlet valve through a pull rope, and when the motor drives the sewage discharge valve to open the sewage inlet, the valve stem drives the water inlet valve to open, so as to realize the linkage between the sewage discharge valve and the water inlet valve, and flushing and sewage discharge can be completed in one go, which is more hygienic and environmentally friendly.

[0008] As a further improvement, the protective shell may preferably include a front shell, a sealing gasket, and a rear shell, wherein the front shell and the rear shell clamp the sealing gasket and are fixed together, and the protective shell is connected to a protective shell bracket, and the protective shell bracket is detachably connected to the valve cover, thereby further improving the waterproof effect of the protective shell.

[0009] As an improvement, a support ring may be preferably provided on the inner ring of the sealing sleeve, the support ring fits with the toilet body around the drain outlet, and the leakproof ring is sleeved on the support ring, which further improves the sealing performance and helps to extend the service life of the sealing structure.

[0010] As an improvement, preferably, limit protrusions are evenly distributed around the valve body and the valve cover, and the valve body and the valve cover are connected together by a snap fitting snapped onto the corresponding limit protrusions. Compared with screw fixing, the valve cover is more convenient to disassemble and install.

[0011] As an improvement, connecting grooves can be preferably provided on the top surface of the valve cover on both sides of the valve stem mounting hole on the valve cover, and a valve cover plate is connected to the top surface of the valve cover at the corresponding position of the connecting groove. A cover plate recess corresponding to the connecting groove is provided at the bottom of the valve cover plate. A valve stem through hole is horizontally provided in the middle of the valve stem, and a metal shaft is inserted in the valve stem through hole. The metal shaft can be rotatably installed in the mounting cavity formed by the matching connecting groove and the cover plate recess. The service life of the metal shaft is longer than that of the plastic shaft directly formed on the valve stem, which helps to extend the service life of the overall assembly structure of the valve stem. At the same time, the connection structure between the metal shaft and the valve stem is different from the plastic shaft directly formed on the valve stem. It is a combination of two parts. The surface of the metal shaft is smooth, and the friction of the valve stem rotating relative to the metal shaft is smaller than that of the plastic shaft rotating relative to the mounting cavity. The valve stem can also be made with a diameter smaller than the diameter of the valve stem through hole. Generally speaking, it helps the valve stem to rotate back and forth more flexibly.

[0012] As an improvement, the lower part of the valve stem may preferably be provided with a sealing ring connector, the sealing ring connector comprising a front clamping cover and a rear clamping cover, the front clamping cover and the rear clamping cover clamping the sealing ring. This structure can firmly fix the sealing ring on the valve stem, prevent the sealing ring from loosening, and also help to improve the sealing effect on the drain outlet.

[0013] As an improvement, a pull pin which can be connected to the valve switch rod of the water inlet valve via a pull rope may preferably be provided on the side of the valve stem above the valve cover.

[0014] Compared with the prior art, the advantages of the present invention are: the sewage valve includes a sealing sleeve, one end of the sealing sleeve is sleeved on the sewage inlet, and the other end of the sealing sleeve is sleeved on the drain outlet. This structure can increase the connection sealing between the sewage valve and the drain outlet of the toilet to avoid water leakage. At the same time, a hard leak-proof ring is sleeved on the inner side of the sealing sleeve, and the sealing ring of the sewage valve can be directly sealed on the leak-proof ring. Since the leak-proof ring is a hard structure, it can maintain its appearance after long-term use, has a long service life, and is not easy to deform, so that the sealing ring always fits well on the leak-proof ring, thereby improving the sealing of the drain outlet cover, avoiding water leakage and odor backflow, and having a good use effect. A valve stem driver is arranged on the valve cover, and the sewage valve is opened by a button switch or an induction switch, omitting the step of pulling the rope, and the triggering of the toilet sewage discharge becomes time-saving and labor-saving, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of an embodiment of the present invention;

[0016] Figure 2 for Figure 1 A top view of

[0017] Figure 3 yes Figure 2 Sectional view along line AA;

[0018] Figure 4 yes Figure 1 The structural breakdown diagram of

[0019] Figure 5 yes Figure 4 An exploded view of the structure at another angle;

[0020] Figure 6 yes Figure 5 A three-dimensional image after removing the toilet body;

[0021] Figure 7 yes Figure 6 A three-dimensional diagram after removing the switch and the water inlet valve;

[0022] Figure 8 yes Figure 7 The structural breakdown diagram of

[0023] Fig. 9 yes Figure 8 Further structural decomposition diagram after removing the valve body;

[0024] Fig.10 yes Fig. 9 An exploded view of the structure at another angle;

[0025] Fig.11 yes Fig. 9 Exploded view of the structure of the middle protective shell;

[0026] Fig.12 yes Figure 8 Exploded view of the structure of the middle valve body;

[0027] Fig.13 yes Figure 3 Enlarged view of part I. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 13 As shown, the leak-proof and odor-proof toilet with good sealing performance in this embodiment includes a toilet body 1. A water inlet and a flushing port are arranged at the upper part of the toilet body 1. A water inlet valve 2 is arranged on the water inlet. The water inlet valve 2 is connected to the water inlet pipe. The toilet is flushed by opening the water inlet valve 2. The specific structure of the water inlet valve 2 belongs to the prior art, so it will not be described in detail. A drain port 11 is arranged at the lower part of the toilet body 1. A sewage valve is arranged on the drain port 11. The sewage valve is connected to the sewage pipe. The toilet is drained by opening the sewage valve. A foot switch 7 is arranged at the lower part of the toilet body 1, and a hand switch 6 is arranged at the upper part of the toilet body 1. The flushing and sewage discharge of the toilet can be achieved by pressing the foot switch 7 or the hand switch 6.

[0030] The sewage valve includes a valve body 3, a valve cover 30, a valve stem 31, and a sealing ring 32. The top of the valve body 3 is open, and the valve cover 30 covers the top opening of the valve body 3. The valve cover 30 is provided with a valve stem mounting hole, and the valve stem 31 passes through the valve stem mounting rod. The middle part of the valve stem 31 is rotatably connected to the valve cover 30. The upper part of the valve stem 31 is connected to the valve stem driver, and the lower part of the valve stem 31 is connected to the sealing ring 32. A sewage inlet connected to the drain port 11 is provided on the valve body 3, and the sealing ring 32 can cover the sewage inlet.

[0031] The sewage valve also includes a sealing sleeve 33, one end of which is sleeved on the sewage inlet, and the other end of which is sleeved on the drain outlet 11. A hard leakproof ring 332 is sleeved on the inner side of the sealing sleeve 33. The leakproof ring 332 is made of corrosion-resistant metal. The specific material belongs to the prior art and is not described in detail. When the sewage valve closes the drain outlet 11, the sealing ring 32 of the sewage valve seals on the leakproof ring 332. A support ring 331 can be added to the inner ring of the sealing sleeve 33. The support ring 331 fits the toilet body around the drain outlet 11. At this time, the leakproof ring 332 is sleeved on the support ring 331.

[0032] A valve stem driver is provided on the valve cover 30, and the valve stem driver is connected to the power supply and the switch through the circuit. The switch is a button switch or an inductive switch controlled by sensor detection. The driving rod 41 of the valve stem driver can be connected to the valve stem 31 in a linkage manner. The inductive switch and the specific circuit structure of the inductive switch controlling the valve stem driver belong to the prior art, so they are not described in detail. The valve stem driver includes a protective shell 40, a motor 4, a driving rod 41, and a transmission pin 42. The protective shell 40 is connected to the valve cover 30, and the motor 4 is arranged in the protective shell 40. The motor 4 is connected to the power supply and the switch through the wire passing through the protective shell 40. The motor 4 is connected to the driving rod 41 by transmission. The driving rod 41 extends out of the protective shell 40, and the transmission pin 42 is connected to the end of the driving rod extending out of the protective shell 40. A waist-shaped hole 311 is provided on the upper part of the valve stem 31, and the transmission pin 42 is inserted in the waist-shaped hole 311. When the driving rod 41 is extended back and forth relative to the motor 4, the driving rod 41 drives the transmission pin 42 to move, thereby driving the valve stem 31 to swing accordingly. The motor 4 can be a driving cylinder, in which case the driving rod 41 is directly the cylinder rod of the driving cylinder. After the sewage is discharged, the cylinder rod automatically resets to close the drain outlet 11. The motor 4 can also be a motor. In this case, a rack needs to be set on the driving rod 41, and the driving rod 41 is driven back and forth by the driving gear of the motor. The meshing driving structure of the driving gear and the rack belongs to the prior art, so it will not be described in detail.

[0033] The upper part of the valve stem 31 is connected to the valve switch rod of the water inlet valve 2 through a pull rope. When the motor 4 drives the sewage valve to open the sewage inlet, the valve stem 31 drives the water inlet valve 2 to open. A reset spring is arranged in the water inlet valve 2, so when the water inlet valve is reset, the valve stem 31 can be pulled back by the pull rope to reset and cover the drain outlet 11. The reset of the valve stem 31 can be achieved by the reset of the motor 4 or the reset spring of the water inlet valve alone, or by the reset of the motor 4 and the reset spring. The specific working principle of the reset of the motor 4, that is, the reset of the driving cylinder or the motor, and the reset spring of the water inlet valve belongs to the known technology, so it will not be described in detail.

[0034] The protective shell 40 includes a front shell 401 , a sealing gasket 402 , and a rear shell 403 . The front shell 401 and the rear shell 403 clamp the sealing gasket 402 and are fixed together. The protective shell 40 is connected to a protective shell bracket 43 , and the protective shell bracket 43 is detachably connected to the valve cover 30 .

[0035] Limiting protrusions are arranged at intervals around the valve body 3 and the valve cover 30, and the valve body 3 and the valve cover 30 are connected together by snapping members 5 snapped on the corresponding limiting protrusions. Connecting grooves 301 are respectively arranged on the top surface of the valve cover on both sides of the valve stem mounting hole on the valve cover, and a valve cover plate 34 is connected to the top surface of the valve cover at the corresponding position of the connecting groove 301. A cover plate recess corresponding to the connecting groove 301 is arranged at the bottom of the valve cover plate 34, and a valve stem through hole is horizontally arranged in the middle of the valve stem 31, and a metal shaft 35 is inserted in the valve stem through hole, and the metal shaft 35 can be rotatably installed in the installation cavity formed by the connection groove 301 and the cover plate recess.

[0036] The lower part of the valve stem 31 is provided with a sealing ring connector, which includes a front clamping cover 36 and a rear clamping cover 37, and the front clamping cover 36 and the rear clamping cover 37 clamp the sealing ring 32. A pull pin 38 that can be connected to the valve switch rod of the water inlet valve 2 through a pull rope is provided on the side of the valve stem above the valve cover.

Claims

1. A leak-proof and odor-proof toilet with good sealing performance, comprising a toilet body (1), a water inlet valve (2) connected to the water inlet of the toilet body (1), and a sewage valve connected to the drainage outlet (11) of the toilet body (1), wherein the sewage valve comprises a valve body (3), a valve cover (30), a valve stem (31), and a sealing ring (32), and a sewage inlet connected to the drainage outlet (11) is arranged on the valve body (3), characterized in that: The sewage discharge valve further comprises a sealing sleeve (33), one end of which is sleeved on the sewage inlet, and the other end of which is sleeved on the drainage outlet (11). A hard leak-proof ring (332) is sleeved on the inner side of the sealing sleeve (33). When the sewage discharge valve closes the drainage outlet (11), the sealing ring (32) of the sewage discharge valve seals on the leak-proof ring (332).

2. The leak-proof and odor-proof toilet according to claim 1, characterized in that: A valve stem driver is arranged on the valve cover (30), and the valve stem driver is connected to a power source and a switch through a line. The switch is a button switch or an induction switch controlled by sensor detection. The driving rod (41) of the valve stem driver can be connected to the valve stem (31) in a linkage manner.

3. The leak-proof and odor-proof toilet according to claim 2, characterized in that: The valve stem driver comprises a protective shell (40), a motor (4), a driving rod (41), and a transmission pin (42); the protective shell (40) is connected to the valve cover (30); the motor (4) is arranged in the protective shell (40); the motor (4) is connected to a power source and a switch via a wire passing through the protective shell (40); the motor (4) is connected to the driving rod (41) by transmission; the driving rod (41) extends out of the protective shell (40); the transmission pin (42) is connected to the end of the driving rod extending out of the protective shell (40); a waist-shaped hole (311) is arranged on the upper part of the valve stem (31); the transmission pin (42) is inserted into the waist-shaped hole (311); when the driving rod (41) is extended and retracted back and forth relative to the motor (4), the driving rod (41) drives the transmission pin (42) to move, thereby driving the valve stem (31) to swing accordingly.

4. The leak-proof and odor-proof toilet according to claim 3, characterized in that: The upper part of the valve stem (31) is connected to the valve switch rod of the water inlet valve (2) via a pull rope, and when the motor (4) drives the sewage discharge valve to open the sewage inlet, the valve stem (31) drives the water inlet valve (2) to open.

5. The leak-proof and odor-proof toilet according to claim 3, characterized in that: The protective shell (40) comprises a front shell (401), a sealing gasket (402), and a rear shell (403); the front shell (401) and the rear shell (403) clamp the sealing gasket (402) and are fixed together; the protective shell (40) is connected to a protective shell bracket (43); and the protective shell bracket (43) is detachably connected to the valve cover (30).

6. The leak-proof and odor-proof toilet according to any one of claims 1 to 5, characterized in that: A support ring (331) is provided on the inner ring of the sealing sleeve (33), the support ring (331) is fitted with the toilet body around the drain outlet (11), and the leak-proof ring (332) is sleeved on the support ring (331).

7. The leak-proof and odor-proof toilet according to any one of claims 1 to 5, characterized in that: Limiting protrusions are spaced apart around the valve body (3) and the valve cover (30), and the valve body (3) and the valve cover (30) are connected together by a snap-fitting member (5) snapped onto the corresponding limiting protrusions.

8. The leak-proof and odor-proof toilet according to any one of claims 1 to 5, characterized in that: Connecting grooves (301) are respectively arranged on the top surface of the valve cover at both sides of the valve stem mounting hole on the valve cover, a valve cover plate (34) is connected to the top surface of the valve cover at a position corresponding to the connecting groove (301), a cover plate recess corresponding to the connecting groove (301) is arranged at the bottom of the valve cover plate (34), a valve stem through hole is horizontally arranged in the middle of the valve stem (31), a metal shaft (35) is inserted in the valve stem through hole, and the metal shaft (35) can be rotatably installed in an installation cavity formed by the connecting groove (301) and the cover plate recess.

9. The leak-proof and odor-proof toilet according to any one of claims 1 to 5, characterized in that: A sealing ring connecting piece is provided at the lower part of the valve stem (31), and the sealing ring connecting piece comprises a front clamping cover (36) and a rear clamping cover (37), and the front clamping cover (36) and the rear clamping cover (37) clamp the sealing ring (32).

10. The leak-proof and odor-proof toilet according to claim 4 or 5, characterized in that: A pull pin (38) which can be connected to the valve switch rod of the water inlet valve (2) through a pull rope is arranged on the side of the valve stem above the valve cover.

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