A drain valve base mounting structure suitable for split toilet and integrated toilet

Abstract

The utility model provides a kind of drainage valve base mounting structure suitable for split toilet and connected toilet, including base body, first joint and second joint;The first joint and second joint are all upper and lower through tubular structure, the bottom of the first joint is equipped with locking nut, and the locking nut is used to lock the water tank bottom wall of split toilet;The bottom of the second joint is equipped with screw rod and bent rod, and the screw rod is threadedly connected with bent rod, for locking the water tank bottom wall of connected toilet;The top of the base body is respectively detachably connected with the first joint and second joint, by replacing the first joint and second joint to adapt split toilet and connected toilet, improve the versatility of drainage valve, reduce production cost.

Description

Technical Field

[0001] This utility model belongs to the field of drain valve technology, and specifically relates to a drain valve base mounting structure suitable for two-piece toilets and one-piece toilets. Background Technology

[0002] The flushing function of a toilet tank is typically controlled by a drain valve, which generally consists of a valve body and a base, with the base securing it to the bottom wall of the tank. Currently, common drain valve bases on the market are mainly divided into two categories based on their installation structure: one is a first connector suitable for two-piece toilets (i.e., toilets where the tank and seat are molded separately and installed independently); the other is a second connector suitable for one-piece toilets (i.e., toilets where the tank and seat are molded as a single piece). These two types of bases have different bottom installation structures because they need to adapt to the different bottom structures and installation spaces of various toilet tanks.

[0003] However, in existing technology, the installation structure of the drain valve base is integrated with the base body and cannot be separated, resulting in a single drain valve being usable only for a specific type of toilet. This limitation forces manufacturers to produce two different drain valve structures for two-piece and one-piece toilets, which not only increases production costs but also requires consumers to purchase a different drain valve if they buy the wrong one or need to replace it, causing inconvenience in production, sales, and use. Summary of the Invention

[0004] The purpose of this utility model is to provide a drain valve base mounting structure suitable for both split toilets and one-piece toilets. By replacing the first connector and the second connector, it can be used for both split toilets and one-piece toilets, improving the versatility of the drain valve and reducing production costs.

[0005] To achieve the above objectives, the solution of this utility model is: to provide a drain valve base mounting structure suitable for split toilets and one-piece toilets, including a base body, a first connector and a second connector; Both the first connector and the second connector are tubular structures that run vertically through each other. The bottom of the first connector is provided with a locking nut, which is used to lock the bottom wall of the water tank of the two-piece toilet. The bottom of the second connector is provided with a screw and a bent rod, which are threadedly connected to each other to lock the bottom wall of the water tank of the one-piece toilet. The base body is detachably connected to the top of the first connector and the second connector, respectively, and can be adapted to two-piece toilets and one-piece toilets by replacing the first connector and the second connector.

[0006] Furthermore, both the first and second connectors are fitted with a first washer and a detachably fitted second washer. The outer diameter of the first washer is larger than the outer diameter of the second washer, and the first washer abuts against the top of the bottom wall of the water tank. The outer diameter of the second washer is the same as the diameter of the mounting hole in the bottom wall of the water tank. When the diameter of the mounting hole in the bottom wall of the water tank is larger than the diameter of the first or second connector, the second washer is fitted onto the first or second connector, and the second washer is located inside the mounting hole in the bottom wall of the water tank. When the diameter of the mounting hole in the bottom wall of the water tank is equal to the diameter of the first or second connector, the second washer is removed.

[0007] Furthermore, the base body includes a connecting part and a drain part. The connecting part is located at the top of the base body for connecting the drain valve body. The drain part is a drain channel with openings at the top and bottom. The upper opening of the drain channel is a plurality of water distribution openings opened on the middle side wall of the base body, and the lower opening of the drain channel is the bottom opening of the base body. The tops of the first connector and the second connector are detachably connected to the lower opening and their interiors are connected to the drain channel. The diameter of the lower opening is larger than the diameter of the first connector and the second connector.

[0008] Furthermore, the bottom of the base body extends downward to form an outer ring, the inner wall of which is provided with multiple positioning slots, and the top of the first connector and the second connector is provided with multiple positioning buckles that cooperate with the positioning slots.

[0009] Furthermore, the inner wall of the outer ring body is provided with a plurality of L-shaped protrusions, each L-shaped protrusion including a vertical part and a horizontal part, and a positioning groove is formed between the vertical part and the horizontal part. The tops of the first connector and the second connector are inserted into the inner wall of the outer ring body, and the first connector and the second connector are rotated to make the positioning buckle screw into the positioning groove.

[0010] Furthermore, the upper surface of the horizontal part is provided with multiple limiting ribs, and the multiple limiting ribs form a limiting groove. The lower surface of the positioning buckle is provided with positioning ribs. When the positioning buckle is screwed into the groove, the positioning ribs are engaged in the limiting groove.

[0011] Furthermore, the base body has an inner ring that bends inward and extends downward inside the outer ring. The gap between the inner ring and the outer ring allows the tops of the first connector and the second connector to be inserted. The outer circumference of the inner ring is fitted with a sealing ring to seal with the first connector or the second connector.

[0012] Furthermore, a threaded sleeve is provided at the bottom of the base body, and the inner wall of the threaded sleeve is provided with an internal thread. The top outer periphery of the first connector and the second connector are provided with external threads for threaded connection with the threaded sleeve.

[0013] Furthermore, the bottom of the base body is provided with a connecting section with an inwardly reduced diameter, the threaded sleeve is fitted on the connecting section, and the top surfaces of the first and second joints are provided with sealing ribs to seal and cooperate with the bottom surface of the connecting section.

[0014] Furthermore, the second connector is also provided with a connector, which is a connecting ring body set in the center of the second connector. The connecting ring body is provided with a through hole, and the screw passes through the through hole. The bottom of the screw is threadedly connected to the bent rod. Multiple water-dividing ribs are provided circumferentially between the connecting ring body and the inner wall of the second connector.

[0015] After adopting the above solution, the beneficial effects of this utility model are as follows: This utility model separates the base body from the mounting connector used to lock the bottom wall of the water tank. The mounting connector is divided into two types: a first connector and a second connector. The base body is detachably connected to the first connector and the second connector respectively. When the drain valve needs to be installed in different types of toilets (i.e., two-piece toilets and one-piece toilets), only the first connector and the second connector need to be replaced, which improves the compatibility of the drain valve. For manufacturers, there is no need to set up two separate production lines to manufacture two complete drain valves. Only two types of mounting connectors need to be made, which reduces production costs. For retailers and consumers, it reduces the complexity of stocking and purchasing.

[0016] Furthermore, both the first and second connectors are fitted with a first washer and a second washer on their outer periphery. The first washer abuts against the top of the bottom wall of the water tank, and the second washer is installed in the mounting hole in the bottom wall of the water tank. The outer diameter of the second washer is the same as the diameter of the mounting hole in the bottom wall of the water tank. By setting the second washer, the first or second connector can be centered in the mounting hole, which can be adapted to mounting holes with larger diameters. If it is to be installed in a mounting hole with a smaller diameter, the second washer of a different diameter can be replaced, or the second washer can be removed. Thus, this application can be adapted to water tanks with different mounting hole diameters, further improving the compatibility of the drain valve. Attached Figure Description

[0017] Figure 1 This is a perspective view of the assembly of the first connector in Embodiment 1 of this utility model; Figure 2 This is a cross-sectional view of the assembly of the first connector in Embodiment 1 of this utility model; Figure 3 This is an exploded view of the parts assembling the first connector according to Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the structure of the first connector in Embodiment 1 of this utility model; Figure 5 This is a partial sectional view of the base body of Embodiment 1 of this utility model; Figure 6This is a perspective view of the assembly of the second connector in Embodiment 1 of this utility model; Figure 7 This is a schematic diagram of the structure of the second connector in Embodiment 1 of this utility model; Figure 8 This is a perspective view of the assembly of the first connector in Embodiment 2 of this utility model; Figure 9 This is a cross-sectional view of the first connector assembled in Embodiment 2 of this utility model; Figure 10 This is an exploded view of the parts assembling the first connector in Embodiment 2 of this utility model; Figure 11 This is a schematic diagram of the structure of the first connector in Embodiment 2 of this utility model; Figure 12 This is a schematic diagram of the structure of the second connector in Embodiment 2 of this utility model.

[0018] Label Explanation: 1. Base body; 11. Connecting part; 12. Drainage channel; 121. Upper opening; 122. Lower opening; 13. Outer ring body; 131. Positioning slot; 14. L-shaped boss; 141. Vertical part; 142. Horizontal part; 143. Limiting rib; 144. Limiting groove; 15. Inner ring body; 151. Annular groove; 16. Threaded sleeve; 17. Connecting section; 2. First connector; 21. Locking nut; 3. Second connector; 31. Connecting piece; 311. Connecting ring body; 312. Water distribution rib; 32. Bent rod; 33. Screw; 4. First washer; 5. Second washer; 6. Positioning buckle; 61. Positioning rib; 7. First outward expansion section; 71. Annular boss; 8. Second outward expansion section; 9. Sealing rib. Detailed Implementation

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1-12As shown, this application provides a drain valve base mounting structure suitable for both split and one-piece toilets, including a base body 1, a first connector 2, and a second connector 3. The base body 1 includes a connecting part 11 and a drain part. The connecting part 11 is located at the top of the base body 1 for connecting to a drain valve body (not shown in the figure). The drain part is a drain channel 12 with openings at the top and bottom. The upper opening 121 of the drain channel 12 is a plurality of water-diverting openings formed on the middle side wall of the base body 1, and the lower opening 122 of the drain channel 12 is the bottom opening of the base body 1. During drainage, water in the toilet tank (not shown in the figure) first flows in through the upper opening 121, is diverted during the inflow, and then flows out through the lower opening 122. The first connector 2 and the second connector 3 are both vertically continuous tubular structures, and the tops of the first connector 2 and the second connector 3 are detachably connected to the base body 1, specifically detachably connected to the lower opening 122, and then connected to the drain channel 12. Water flowing out from the lower opening 122 flows out from inside the first connector 2 or the second connector 3.

[0021] The bottom of the first connector 2 and the second connector 3 are respectively provided with structures for fixing and installing with the bottom wall of the water tank of the two-piece toilet and the one-piece toilet. The base body 1 can be adapted to two-piece toilets and one-piece toilets by replacing the first connector 2 and the second connector 3, which improves the compatibility of the drain valve and reduces the production cost.

[0022] Specifically, since there is sufficient installation space under the water tank of a two-piece toilet, the bottom wall of the water tank can be secured using locking nuts 21, such as... Figure 2 As shown, the locking nut 21 is threaded to the bottom of the first connector 2. During installation, first insert the first connector 2 into the mounting hole of the split toilet tank, with the bottom of the first connector 2 protruding from the mounting hole. Then, put the locking nut 21 on the bottom of the first connector 2 and tighten it to complete the installation. The drain valve can be removed by disassembling the locking nut 21.

[0023] Because the toilet tank and seat are integrated, there is insufficient installation space under the bottom of the tank. Therefore, a bent rod 32 and a screw 33 are used for locking. Figure 7 and Figure 12As shown, the second connector 3 has a connector 31 near the bottom for the screw 33 to pass through. The bottom of the screw 33 is screwed to the middle of the bent rod 32. The bent rod 32 is in the shape of an arc with hooks at both ends. During installation, first, the screw 33 is passed through the connector 31, and then the screw 33 and the bent rod 32 are threaded together. At this time, the screw 33 and the bent rod 32 are not locked, and the bent rod 32 can move around the screw 33. Then, the second connector 3 is inserted into the mounting hole on the bottom wall of the one-piece toilet tank. At the same time, the bent rod 32 can be tilted at a certain angle to pass through the mounting hole. Then, the position of the bent rod 32 is leveled. Then, the screw 33 is rotated to lock the bent rod 32 to the bottom wall of the tank to complete the installation. Conversely, to disassemble, the screw 33 is loosened, the bent rod 32 is tilted and then removed.

[0024] Key references Figure 12 The connector 31 is a connecting ring 311 set in the center of the second connector 3. The connecting ring 311 has a through hole for the screw 33 to pass through. Multiple water-dividing ribs 312 are circumferentially distributed between the connecting ring 311 and the inner wall of the second connector 3. The water-dividing ribs 312 can divert water flow while fixing the connecting ring 311.

[0025] Key references Figure 1 and Figure 6 The first connector 2 and the second connector 3 are both fitted with a first washer 4 and a second washer 5 on their outer peripheries. The outer diameter of the first washer 4 is larger than that of the second washer 5. During installation, the first washer 4 abuts against the top of the bottom wall of the water tank, and the second washer 5 is installed in the mounting hole of the bottom wall of the water tank. The outer diameter of the second washer 5 is the same as the diameter of the mounting hole of the bottom wall of the water tank. By setting the second washer 5, the first connector 2 or the second connector 3 can be centered in the mounting hole, which can be adapted to mounting holes with larger diameters. If it is to be installed in a mounting hole with a smaller diameter, the second washer 5 of a different diameter can be replaced, or the second washer 5 can be removed. Thus, this application can be adapted to water tanks with different mounting hole diameters, further improving the compatibility of the drain valve. For example, if the diameter of the large mounting hole is D1 and the diameter of the small mounting hole is D2, then the outer diameter of the second washer 5 is D1. If the outer diameters of the first connector 2 and the second connector 3 are set to D2, when it is necessary to adapt to the large mounting hole, the second washer 5 can be installed. If the second washer 5 is not installed, it can be directly adapted to the small mounting hole.

[0026] The base body 1 can be connected to the first connector 2 and the second connector 3 by means of snap-fit, threaded connection or other detachable connection.

[0027] In Embodiment 1, the base body 1 is connected to the first connector 2 and the second connector 3 by a snap-fit ​​connection. (See attached image for details.) Figures 1-7The base body 1 has an outer ring 13 extending downward from its bottom. The inner wall of the outer ring 13 has multiple positioning slots 131. The top of the first connector 2 and the second connector 3 has multiple positioning buckles 6 that cooperate with the positioning slots 131.

[0028] Specifically, refer to Figure 5 The inner wall of the outer ring body 13 is provided with multiple L-shaped protrusions 14. Each L-shaped protrusion 14 includes a vertical part 141 and a horizontal part 142. A positioning groove 131 is formed between the vertical part 141 and the horizontal part 142. The tops of the first connector 2 and the second connector 3 are inserted into the outer ring body 13. By rotating the first connector 2 and the second connector 3, the positioning buckle 6 is screwed into the positioning groove 131 until the positioning buckle 6 laterally abuts against the vertical part 141, thus completing the detachable connection. To ensure a firm connection, the upper surface of the horizontal part 142 is provided with multiple limiting ribs 143, and a limiting groove 144 is formed between the multiple limiting ribs 143. The lower surface of the positioning buckle 6 is provided with a positioning rib 61. When the positioning buckle 6 is screwed into the groove, the positioning rib 61 is engaged in the limiting groove 144, and the limiting groove 144 can prevent the positioning rib 61 from naturally dislodging.

[0029] Preferred, such as Figure 4 As shown, the bottom surface of the positioning rib 61 relative to the positioning slot 131 is inclined to facilitate screwing into the positioning slot 131; and the positioning rib 61 can be arranged along the radial direction of the first joint 2 or inclined relative to the radial direction. Inclined arrangement is more convenient for demolding, and the width of the limiting groove 144 needs to be sufficient to limit the inclined positioning rib 61.

[0030] Referring to point 2, the inner diameters of the first connector 2 and the second connector 3 are smaller than the diameter of the lower opening 122 to increase the drainage flow. The base body 1 has an inner ring 15 that curves inward and extends downward within the outer ring 13. The gap between the inner ring 15 and the outer ring 13 allows the tops of the first connector 2 and the second connector 3 to be inserted. The outer periphery of the inner ring 15 is provided in an annular groove 151, which is fitted with a sealing ring to achieve a sealed fit between the inner ring 15 and the second connector 3 or the first connector 2, preventing leakage and increasing the connection's strength. Since the inner diameter of the inner ring 15 is smaller than the diameter of the lower opening 122, to ensure increased flow, the inner diameters of the first connector 2 and the second connector 3 are approximately the same as the inner diameter of the inner ring 15. Therefore, a first outward expansion section 7 with an increased diameter is provided at the top of the first connector 2 and the second connector 3. A positioning buckle 6 is located on the outer wall of the first outward expansion section 7, which is inserted between the inner ring 15 and the outer ring 13. In addition, the first connector 2 and the second connector 3 are provided with an annular boss 71 below the first outward expansion section 7. The first washer 4 is fitted under the annular boss 71 and abuts against and limits the annular boss 71.

[0031] In Embodiment 2, the base body is connected to the first connector 2 and the second connector 3 by a threaded connection. (See attached image for details.) Figures 8-12 The base body has a threaded sleeve 16 at its bottom, with internal threads on its inner wall. The top outer circumference of the first connector 2 and the second connector 3 has external threads for threaded connection with the threaded sleeve 16. To increase flow rate, the bottom of the base body 1 has a connecting section 17 with a reduced diameter at the lower opening 122. The threaded sleeve 16 is fitted onto the bottom of the connecting section 17. The first connector 2 and the second connector 3 abut against the connecting section 17, and the top surfaces of the first connector 2 and the second connector 3 have sealing ribs 9 to form a sealing lip structure, which can seal against the bottom surface of the connecting section 17.

[0032] Similar to the embodiment, the top of the first connector 2 and the second connector 3 is provided with a second outwardly expanding section 8 with an increased diameter. The outer periphery of the second outwardly expanding section 8 is provided with external threads to cooperate with the threaded sleeve 16, and a sealing rib 9 is provided on the top surface of the second outwardly expanding section 8. In addition, the first washer 4 is located below the second outwardly expanding section 8 and abuts against and limits the threaded sleeve 16, so there is no need to provide an annular boss 71.

[0033] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A drain valve base mounting structure suitable for two-piece toilets and one-piece toilets, characterized in that: Includes the base body, the first connector, and the second connector; Both the first connector and the second connector are tubular structures that run vertically through each other. The bottom of the first connector is provided with a locking nut, which is used to lock the bottom wall of the water tank of the two-piece toilet. The bottom of the second connector is provided with a screw and a bent rod, which are threadedly connected to each other to lock the bottom wall of the water tank of the one-piece toilet. The base body is detachably connected to the top of the first connector and the second connector, respectively, and can be adapted to two-piece toilets and one-piece toilets by replacing the first connector and the second connector.

2. The drain valve base mounting structure applicable to two-piece toilets and one-piece toilets as described in claim 1, characterized in that: Both the first and second connectors are fitted with a first washer and a detachable second washer. The outer diameter of the first washer is larger than that of the second washer, and the first washer abuts against the top of the bottom wall of the water tank. The outer diameter of the second washer is the same as the diameter of the mounting hole in the bottom wall of the water tank. When the diameter of the mounting hole in the bottom wall of the water tank is larger than the diameter of the first or second connector, the second washer is fitted onto the first or second connector, and the second washer is located inside the mounting hole in the bottom wall of the water tank. When the diameter of the mounting hole in the bottom wall of the water tank is equal to the diameter of the first or second connector, the second washer is removed.

3. A drain valve base mounting structure suitable for two-piece and one-piece toilets as described in claim 1 or 2, characterized in that: The base body includes a connecting part and a drain part. The connecting part is located at the top of the base body and is used to connect to the drain valve body. The drain part is a drain channel with openings at the top and bottom. The upper opening of the drain channel is a plurality of water distribution openings opened on the middle side wall of the base body, and the lower opening of the drain channel is the bottom opening of the base body. The tops of the first connector and the second connector are detachably connected to the lower opening and their interiors are connected to the drain channel. The diameter of the lower opening is larger than the diameter of the first connector and the second connector.

4. The drain valve base mounting structure applicable to two-piece toilets and one-piece toilets as described in claim 1, characterized in that: The base body has an outer ring extending downward from its bottom. The inner wall of the outer ring has multiple positioning slots. The top of the first connector and the second connector has multiple positioning buckles that cooperate with the positioning slots.

5. The drain valve base mounting structure applicable to two-piece toilets and one-piece toilets as described in claim 4, characterized in that: The inner wall of the outer ring body is provided with a plurality of L-shaped protrusions, each L-shaped protrusion including a vertical part and a horizontal part, and a positioning groove is formed between the vertical part and the horizontal part. The tops of the first connector and the second connector are inserted into the inner wall of the outer ring body, and the first connector and the second connector are rotated to make the positioning buckle screw into the positioning groove.

6. The drain valve base mounting structure applicable to two-piece toilets and one-piece toilets as described in claim 5, characterized in that: The upper surface of the horizontal part is provided with multiple limiting ribs, and the multiple limiting ribs form a limiting groove. The lower surface of the positioning buckle is provided with positioning ribs. When the positioning buckle is screwed into the groove, the positioning ribs are engaged in the limiting groove.

7. A drain valve base mounting structure suitable for two-piece toilets and one-piece toilets as described in any one of claims 4-6, characterized in that: The base body has an inner ring that curves inward and extends downward inside the outer ring. The gap between the inner ring and the outer ring allows the tops of the first connector and the second connector to be inserted. The outer circumference of the inner ring is fitted with a sealing ring to seal with the first connector or the second connector.

8. The drain valve base mounting structure applicable to two-piece toilets and one-piece toilets as described in claim 1, characterized in that: The bottom of the base body is provided with a threaded sleeve, the inner wall of the threaded sleeve is provided with internal threads, and the top outer periphery of the first connector and the second connector is provided with external threads for threaded connection with the threaded sleeve.

9. The drain valve base mounting structure applicable to two-piece toilets and one-piece toilets as described in claim 7, characterized in that: The bottom of the base body is provided with a connecting section with an inwardly reduced diameter. The threaded sleeve is fitted onto the connecting section. The top surfaces of the first and second joints are provided with sealing ribs to seal against the bottom surface of the connecting section.

10. The drain valve base mounting structure applicable to two-piece toilets and one-piece toilets as described in claim 1, characterized in that: The second connector is also provided with a connector, which is a connecting ring body set in the center of the second connector. The connecting ring body has a through hole inside, and the screw passes through the through hole. The bottom of the screw is threadedly connected to the bent rod. Multiple water-dividing ribs are provided circumferentially between the connecting ring body and the inner wall of the second connector.

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