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, the leakage-proof ring is of a hard structure, the appearance can be kept after long-time use, the service life is long, and the leakage-proof ring is not prone to deformation, so that the sealing ring is well attached to the leakage-proof ring all the time, the sealing sealing performance of a sealing cover 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] This utility model relates to the field of toilet manufacturing technology, and in particular to a leak-proof and odor-proof toilet with good sealing performance. Background Technology

[0002] A Chinese utility model patent with application number CN202021263286.X entitled "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 provided at one end of the valve body, and a sewage outlet is provided at the bottom of the valve body. A valve is provided in the inner cavity of the valve body. The valve is rotatably connected to the valve body via 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 via a traction line. A return mechanism is also provided on the valve body. The valve consists of a rigid 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, while 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, causing the sealing ring to seal and touch the sewage inlet. The advantages of this utility model are: the valve's sealing ring can fit tightly against the sewage inlet, thus sealing the sewage inlet effectively and preventing sewage and odor backflow. However, when closing the sewage inlet, the sealing ring contacts the retaining sleeve of the sealing sleeve. Since the retaining sleeve is a soft structure, it is prone to deformation after a period of use, leading to a decrease in the sealing effect of the sealing ring. Furthermore, opening the sewage inlet requires pulling a rope, which is not labor-saving and has room for improvement. Therefore, this valve structure needs further refinement. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a leak-proof and odor-proof toilet with good sealing performance and odor prevention effect when the toilet drain outlet is closed, in light of the above-mentioned existing technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: This leak-proof and odor-proof toilet with good sealing performance includes a toilet body, an inlet valve connected to the inlet of the toilet body, and a drain valve connected to the drain outlet of the toilet body. The drain valve includes a valve body, a valve cover, a valve stem, and a sealing ring. A sewage inlet connected to the drain outlet is provided on the valve body. The feature is that the drain valve also includes a sealing sleeve. One end of the sealing sleeve is fitted onto the sewage inlet, and the other end of the sealing sleeve is fitted onto the drain outlet. A rigid leak-proof ring is fitted inside the sealing sleeve. When the drain valve closes the drain outlet, the sealing ring of the drain valve seals over the leak-proof ring.

[0005] As an improvement, a valve stem actuator can preferably be provided on the valve cover. The valve stem actuator is connected to a power supply and a switch via a circuit. The switch is a push-button switch or an inductive switch controlled by a sensor. The drive rod of the valve stem actuator can be linked together with the valve stem.

[0006] In a further improvement, the valve stem actuator can preferably include a protective shell, a motor, a drive rod, and a transmission pin. The protective shell is connected to the valve cover, and the motor is housed inside the protective shell. The motor is connected to a power source and a switch via a wire passing through the protective shell. The motor is driven by the drive rod, which extends out of the protective shell. The transmission pin is connected to the end of the drive rod extending out of the protective shell. A slotted hole is provided at the upper part of the valve stem, and the transmission pin is inserted into the slotted hole. When the drive rod reciprocates relative to the motor, the drive rod drives the transmission pin to move, thereby causing the valve stem to swing accordingly. The protective shell protects the motor and extends its service life.

[0007] In a further improvement, the upper part of the valve stem can preferably be connected to the valve switch rod of the inlet valve via a pull rope. When the motor drives the drain valve to open the sewage inlet, the valve stem simultaneously drives the inlet valve to open. This achieves linkage between the drain valve and the inlet valve, allowing for seamless flushing and sewage discharge, resulting in a more hygienic and environmentally friendly process.

[0008] In 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 fix them together, and the protective shell is connected to a protective shell bracket, which is detachably connected to the valve cover. This further improves the waterproof effect of the protective shell.

[0009] As an improvement, a support ring can preferably be provided on the inner ring of the sealing sleeve. The support ring fits snugly against the toilet body around the drain outlet, and the leak-proof ring is fitted onto the support ring. This further increases the sealing performance and helps extend the service life of the sealing structure.

[0010] As an improvement, it is preferable to evenly distribute limiting protrusions around the valve body and valve cover, and the valve body and valve cover are connected together by snap-fit ​​devices that fasten to the corresponding limiting protrusions. Compared with screw fixing, the valve cover is easier to disassemble and install.

[0011] As an improvement, connecting grooves can preferably be provided on the top surface of the valve cover on both sides of the valve stem mounting hole. 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. A metal shaft is inserted through the valve stem through hole. The metal shaft is rotatably installed in the mounting cavity formed by the engagement of the connecting groove and the cover plate recess. The service life of the metal shaft is longer than that of the plastic shaft directly molded on the valve stem, which helps to extend the service life of the overall valve stem assembly structure. At the same time, the connection structure between the metal shaft and the valve stem is different from that of the plastic shaft directly molded on the valve stem. It is a combination of two parts. The surface of the metal shaft is smooth, and the rotation of the valve stem relative to the metal shaft has less friction than the rotation of the plastic shaft 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. Overall, it helps the valve stem to rotate more flexibly back and forth.

[0012] As an improvement, the lower part of the valve stem can preferably be provided with a sealing ring connector, which includes a front clamp and a rear clamp that clamp the sealing ring. This structure can firmly fix the sealing ring to the valve stem, preventing the sealing ring from loosening, and also helps to improve the sealing effect on the drain outlet.

[0013] As an improvement, a pull pin for connecting the valve switch rod of the inlet valve to the valve cover can preferably be provided on the valve stem side above the valve cover.

[0014] Compared with the prior art, the advantages of this utility model are as follows: The drain valve includes a sealing sleeve, one end of which is fitted onto the sewage inlet, and the other end of which is fitted onto the drain outlet. This structure increases the sealing performance between the drain valve and the toilet drain outlet, preventing leakage. Simultaneously, a rigid anti-leak ring is fitted inside the sealing sleeve, allowing the drain valve's sealing ring to directly seal onto the anti-leak ring. Because the anti-leak ring is a rigid structure, it maintains its shape even after prolonged use, has a long service life, and is not easily deformed, ensuring the sealing ring always fits well onto the anti-leak ring. This improves the sealing performance of the drain outlet, preventing leakage and odor backflow, resulting in excellent performance. A valve stem actuator is installed on the valve cover, allowing the drain valve to be opened via a push-button switch or induction switch, eliminating the need for a pull cord. This makes triggering the toilet draining process time-saving and effortless, resulting in better performance. Attached Figure Description

[0015] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 Top view;

[0017] Figure 3 yes Figure 2 Cross-sectional view along line AA;

[0018] Figure 4 yes Figure 1 Exploded structural diagram;

[0019] Figure 5 yes Figure 4 A structural breakdown diagram from another perspective;

[0020] Figure 6 yes Figure 5 A 3D image of the toilet seat after the toilet body has been removed;

[0021] Figure 7 yes Figure 6 A 3D view after removing the switch and inlet valve;

[0022] Figure 8 yes Figure 7 Exploded structural diagram;

[0023] Figure 9 yes Figure 8 Exploded view of the structure after removing the valve body;

[0024] Figure 10 yes Figure 9 A structural breakdown diagram from another perspective;

[0025] Figure 11 yes Figure 9 Exploded view of the structure of the inner protective shell;

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

[0027] Figure 13 yes Figure 3 Enlarged view of section I. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] like Figures 1 to 13 As shown, this embodiment of a leak-proof and odor-proof toilet with good sealing performance includes a toilet body 1. A water inlet and a flushing outlet are provided at the upper part of the toilet body 1. A water inlet valve 2 is provided on the water inlet, and the water inlet valve 2 is connected to the water inlet pipe. Opening the water inlet valve 2 enables the toilet to flush. The specific structure of the water inlet valve 2 is prior art and will not be described in detail. A drain outlet 11 is provided at the lower part of the toilet body 1, and a sewage discharge valve is provided on the drain outlet 11. The sewage discharge valve is connected to the sewage discharge pipe, and opening the sewage discharge valve enables the toilet to drain. A foot switch 7 is provided at the lower part of the toilet body 1, and a hand switch 6 is provided at the upper part of the toilet body 1. Pressing the foot switch 7 or the hand switch 6 enables the toilet to flush and discharge sewage.

[0030] The drain valve includes a valve body 3, a valve cover 30, a valve stem 31, and a sealing ring 32. The valve body 3 has an opening at the top, and the valve cover 30 covers the opening at the top of the valve body 3. The valve cover 30 has a valve stem mounting hole, through which the valve stem 31 passes. 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 actuator, and the lower part of the valve stem 31 is connected to the sealing ring 32. The valve body 3 has a sewage inlet that communicates with the drain outlet 11, and the sealing ring 32 covers the sewage inlet.

[0031] The drain valve also includes a sealing sleeve 33. One end of the sealing sleeve 33 is fitted onto the sewage inlet, and the other end is fitted onto the drain outlet 11. A rigid leak-proof ring 332 is fitted inside the sealing sleeve 33. The leak-proof ring 332 is made of corrosion-resistant metal; the specific material is existing technology and will not be described in detail. When the drain valve closes the drain outlet 11, the sealing ring 32 of the drain valve seals over the leak-proof ring 332. A support ring 331 can be added to the inner ring of the sealing sleeve 33. The support ring 331 fits snugly against the toilet body around the drain outlet 11, at which point the leak-proof ring 332 fits over the support ring 331.

[0032] A valve stem actuator is provided on the valve cover 30. The valve stem actuator is connected to a power supply and a switch via wiring. The switch is a push-button switch or an inductive switch controlled by a sensor. The drive rod 41 of the valve stem actuator is linked to the valve stem 31. The inductive switch and the specific circuit structure of the inductive switch controlling the valve stem actuator are existing technologies and will not be described in detail. The valve stem actuator includes a protective shell 40, a motor 4, a drive rod 41, and a transmission pin 42. The protective shell 40 is connected to the valve cover 30. The motor 4 is located inside the protective shell 40 and is connected to the power supply and the switch via wires passing through the protective shell 40. The motor 4 is connected to the drive rod 41 in a transmission manner. The drive rod 41 extends out of the protective shell 40, and the transmission pin 42 is connected to the end of the drive rod extending out of the protective shell 40. An oblong hole 311 is provided on the upper part of the valve stem 31, and the transmission pin 42 is inserted into the oblong hole 311. When the drive rod 41 reciprocates relative to the motor 4, the drive rod 41 drives the transmission pin 42 to move, thereby causing the valve stem 31 to swing accordingly. Motor 4 can be a drive cylinder. In this case, drive rod 41 is directly the cylinder rod of the drive cylinder. After the sewage discharge is completed, the cylinder rod automatically resets to close the drain outlet 11. Motor 4 can also be a motor. In this case, a rack needs to be set on drive rod 41. Drive rod 41 moves back and forth through the drive gear of motor. The meshing drive structure of drive gear and rack is existing technology, so it will not be described in detail.

[0033] The upper part of valve stem 31 is connected to the valve switch rod of inlet valve 2 via a pull rope. When motor 4 drives the drain valve to open the sewage inlet, valve stem 31 drives inlet valve 2 to open. Inlet valve 2 is equipped with a return spring, so when the inlet valve resets, the pull rope can reverse the movement of valve stem 31 to return it to its original position and cover drain outlet 11. The reset of valve stem 31 can be achieved by motor 4 reset or the return spring of the inlet valve reset alone, or by a combination of motor 4 reset and return spring reset. The specific working principles of motor 4 reset (i.e., drive cylinder reset or motor reset) and inlet valve return spring reset are well-known technologies and will not be described in detail here.

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

[0035] Limiting protrusions are distributed at intervals around the valve body 3 and valve cover 30. The valve body 3 and valve cover 30 are connected together by snap-fit ​​pieces 5 that snap onto the corresponding limiting protrusions. Connecting grooves 301 are respectively provided on the top surface of the valve cover on 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 the corresponding position of the connecting groove 301. A cover plate recess corresponding to the connecting groove 301 is provided at the bottom of the valve cover plate 34. A valve stem through hole is horizontally provided in the middle of the valve stem 31. A metal shaft 35 is inserted through the valve stem through hole. The metal shaft 35 is rotatably installed in the mounting cavity formed by the engagement of the connecting groove 301 and the cover plate recess.

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

Claims

1. A leak-proof and odor-proof toilet with good sealing performance, comprising a toilet body (1), an inlet valve (2) connected to the inlet of the toilet body (1), and a drain valve connected to the drain outlet (11) of the toilet body (1), wherein the drain 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 drain outlet (11) is provided on the valve body (3), characterized in that: The drain valve also includes a sealing sleeve (33), one end of which is fitted onto the sewage inlet and the other end of which is fitted onto the drain outlet (11). A rigid leak-proof ring (332) is fitted inside the sealing sleeve (33). When the drain valve closes the drain outlet (11), the sealing ring (32) of the drain valve seals over the leak-proof ring (332).

2. The leak-proof and odor-proof toilet according to claim 1, characterized in that: A valve stem actuator is provided on the valve cover (30). The valve stem actuator is connected to a power supply and a switch via a line. The switch is a push-button switch or an inductive switch controlled by a sensor. The drive rod (41) of the valve stem actuator is linked to the valve stem (31).

3. The leak-proof and odor-proof toilet according to claim 2, characterized in that: The valve stem actuator includes a protective shell (40), a motor (4), a drive rod (41), and a transmission pin (42). The protective shell (40) is connected to the valve cover (30). The motor (4) is located inside 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 drive rod (41) in a transmission manner. The drive rod (41) extends out of the protective shell (40). The transmission pin (42) is connected to the end of the drive rod that extends out of the protective shell (40). A waist-shaped hole (311) is provided on the upper part of the valve stem (31). The transmission pin (42) is inserted into the waist-shaped hole (311). When the drive rod (41) extends and retracts relative to the motor (4), the drive rod (41) drives the transmission pin (42) to move, thereby causing 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 inlet valve (2) by a pull rope. When the motor (4) drives the drain valve to open the sewage inlet, the valve stem (31) drives the inlet valve (2) to open.

5. The leak-proof and odor-proof toilet according to claim 3, characterized in that: 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 fix them together. The protective shell (40) is connected to a protective shell bracket (43), which 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) fits against the toilet body around the drain outlet (11). The leak-proof ring (332) is fitted 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 distributed at intervals around the valve body (3) and valve cover (30), and the valve body (3) and valve cover (30) are connected together by a snap fastener (5) that snaps onto the corresponding limiting protrusion.

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 provided on the top surface of the valve cover on 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 the corresponding position of the connecting groove (301). A cover plate recess corresponding to the connecting groove (301) is provided at the bottom of the valve cover plate (34). A valve stem through hole is horizontally provided in the middle of the valve stem (31). A metal shaft (35) is inserted in the valve stem through hole. The metal shaft (35) is rotatably installed in the mounting 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: The lower part of the valve stem (31) is provided with a sealing ring connector, which includes a front cover (36) and a rear cover (37), and the front cover (36) and the rear 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) is provided on the valve stem side above the valve cover, which can be connected to the inlet valve (2) by a pull rope.

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