Water inlet valve connecting structure compatible with different water inlet positions and toilet tank

Abstract

The utility model provides a kind of compatible different water inlet position's water inlet valve connecting structure and closestool water tank, including water inlet valve body and switch valve, and the water inlet of water inlet valve body and the water outlet of switch valve are connected with multi-pass joint, two and above installation interfaces in different directions are equipped on multi-pass joint, the water inlet of water inlet valve body is connected with one installation interface, and the water outlet of switch valve is connected with one of remaining installation interfaces.Multiple pass joints are arranged between water inlet valve body and switch valve to be connected, and multiple pass joints are equipped with two and above installation interfaces in different directions, the flexible switching of water inlet interface position can be realized;End user does not need to increase and reduce parts, can select appropriate installation interface according to actual installation scene (such as wall position, pipe arrangement direction), avoid water supply pipe lengthening and the problem that installation is connected or cannot be installed because interface is towards wall, reduce pipe material waste and installation working hours.

Description

Technical Field

[0001] This utility model relates to the field of bathroom product technology, and in particular to a water inlet valve connection structure compatible with different water inlet positions and a toilet tank. Background Technology

[0002] In existing concealed water tanks, the inlet valve is directly connected to the outlet valve. Therefore, the inlet connection has only one fixed installation location. After assembly and shipment by the manufacturer, the installation location of the inlet valve and its connection to the outlet valve are fixed. End users can only install the pipes according to the location specified by the manufacturer. However, end users may encounter problems with inappropriate pipe placement during installation. Because the inlet interface of the concealed water tank is fixed, the actual pipe installation requires extending and winding the water supply pipe, wasting materials and labor. Alternatively, since the concealed water tank needs to be installed close to a corner, if the inlet interface is directly facing the wall, the water supply pipe cannot be installed. Utility Model Content

[0003] To solve the above problems, the purpose of this utility model is to provide a water inlet valve connection structure and toilet tank that are compatible with different water inlet positions.

[0004] This utility model is implemented using the following method: a water inlet valve connection structure compatible with different water inlet positions, including a water inlet valve body and a switch valve, wherein a multi-port connector is connected between the water inlet of the water inlet valve body and the water outlet of the switch valve, the multi-port connector is provided with two or more installation interfaces facing different directions, the water inlet of the water inlet valve body is connected to one of the installation interfaces, and the water outlet of the switch valve is connected to one of the remaining installation interfaces.

[0005] Preferably, the multi-port connector has three or more installation interfaces, wherein any two installation interfaces are respectively connected to the water inlet of the water inlet valve body and the water outlet of the switch valve, and the remaining installation interfaces are spare installation interfaces, and the spare installation interfaces are provided with removable sealing caps.

[0006] Preferably, the multi-port connector has four or more installation interfaces, wherein any two installation interfaces are respectively connected to the inlet of the water inlet valve body and the outlet of the switch valve, and any one installation interface is connected to a filter assembly, which passes through the water passage between the inlet of the water inlet valve body and the outlet of the switch valve in the multi-port connector; the remaining installation interfaces are spare installation interfaces, and the spare installation interfaces are provided with removable sealing caps.

[0007] Preferably, there are two multi-port connectors, and each multi-port connector has at least three mounting interfaces; any two mounting interfaces of one multi-port connector are respectively connected to the switch valve and one mounting interface of the other multi-port connector, and the remaining mounting interface is reserved; one of the remaining two mounting interfaces of the other multi-port connector is connected to the inlet of the inlet valve body, and the other mounting interface is connected to a filter assembly.

[0008] Preferably, the filter assembly includes a filter screen and a fixing member. The filter screen is fixed to the fixing member and is inserted into the water passage of the multi-port connector through the installation interface. The fixing member is fixed at the installation interface. The fixing member includes a fixing plug and a locking nut. The locking nut has a clearance hole. The fixing plug passes through the clearance hole and engages with the filter screen. The size of the end of the fixing plug away from the filter screen is larger than the size of the clearance hole. The size of the end of the filter screen connected to the fixing plug is larger than the size of the clearance hole. The installation interface has threads that engage with the locking nut.

[0009] Preferably, a first connector is connected between the switch valve and the corresponding mounting interface; the first connector is a split nut, which includes two arc-shaped nut pieces. The two nut pieces are joined together, and the inner circumferential surface of the joined pieces is provided with threads and a limiting groove. The outer circumferential surface of the mounting interface connected to the switch valve is provided with external threads, and the outer circumferential surface of the outlet of the switch valve is provided with a limiting rib. The limiting rib is located in the limiting groove, and the inner circumferential thread engages with the external thread of the mounting interface.

[0010] Preferably, a second connector is provided between the inlet valve body and the corresponding mounting interface; the second connector includes a second nut and a retaining ring, the retaining ring being disposed on the mounting interface connected to the inlet valve body, the inner diameter of the end of the second nut facing away from the inlet valve being smaller than the outer diameter of the retaining ring, and the outer circumferential surface of the inlet of the inlet valve being provided with threads; the retaining ring is provided with an anti-rotation notch, and the end face of the inlet of the inlet of the inlet valve body is provided with an anti-rotation rib, the anti-rotation rib being able to pass through the anti-rotation notch; the retaining ring is C-shaped, and a C-shaped second retaining groove is provided around the outer circumferential surface of the mounting interface connected to the inlet valve body, the retaining ring being disposed on the second retaining groove.

[0011] Another toilet tank is provided, including a tank body. The tank body is provided with an inlet valve connection structure compatible with different inlet positions as described in any of the above. At least two fixing brackets are provided on the inner wall of the tank body, and each fixing bracket corresponds to an installation position. A fixing buckle is provided on one of the inlet valve body, the multi-way connector and the switch valve. The inlet valve body is engaged with one of the fixing brackets through the fixing buckle.

[0012] Preferably, the fixing bracket includes two opposing positioning blocks, which are fixed to the inner circumferential surface of the water tank body. The surfaces of the two positioning blocks facing each other have C-shaped grooves. The fixing buckle includes a connecting plate and a connecting seat. The connecting seat has a first C-shaped groove. The connecting plate is located on the side of the connecting seat opposite to the first groove, and the connecting plate is engaged between the two C-shaped grooves of the fixing seat. The first groove engages with the outer circumferential surface of the multi-port connector. The outer circumferential surface of the multi-port connector has a first groove engagement position. The first groove is provided with a stop rib. Buckle ribs are provided on both sides of the first groove engagement position. After the first groove engages with the first groove engagement position, the buckle ribs are located on both sides of the stop ribs, and the buckle ribs are used to restrict the axial movement of the fixing buckle.

[0013] Preferably, the water tank body has at least two water inlet ports, corresponding to the positions of the corresponding fixed brackets; the water inlet of the switch valve passes through the water inlet ports and is connected to the water supply pipe, or the water supply pipe passes through the water inlet ports and is connected to the water inlet of the switch valve.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a water inlet valve connection structure and toilet tank compatible with different water inlet positions. Compared with the prior art, this utility model has at least the following technical effects: 1. A multi-way connector is provided between the water inlet valve body and the switch valve for connection, and the multi-way connector has two or more installation interfaces with different orientations, which can realize flexible switching of water inlet positions; end users do not need to add or remove parts, and can select the appropriate installation interface according to the actual installation scenario (such as wall position, pipe direction), avoiding the problem of extending and winding the water supply pipe or being unable to install due to the orientation of the interface towards the wall, reducing pipe material waste and installation time. 2. The multi-way connector structure with spare installation interfaces increases the expansion capability of the interface and allows for flexible selection of installation positions. 3. A multi-port connector connects to the filter assembly, and the spare installation interface is covered with a sealing cap. This serves two purposes: firstly, the filter assembly filters the water entering the inlet valve, preventing impurities from clogging the valve body and affecting its lifespan; secondly, the sealing cap on the spare interface prevents leakage from unused interfaces while retaining expansion space. If the interface position needs to be changed later, only the sealing cap needs to be removed to reconnect the components, without the need for additional drilling or replacement of the multi-port connector. 4. The water tank body has at least two fixing brackets, and the inlet valve engages with any of these brackets via fixing clips, enabling matching and adjustment of the overall installation position of the inlet valve. When switching the inlet interface position, the fixing clips engage with the corresponding fixing brackets, ensuring that the inlet valve is aligned with the interface position and preventing water circuit blockage or component interference due to positional misalignment. 5. At least two inlet interfaces corresponding to the fixing brackets can match different installation positions of the inlet valve; the water tank has multiple corresponding inlet interfaces, and the valve can be installed using the appropriate inlet interface according to the actual usage scenario. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a water inlet valve connection structure compatible with different water inlet positions according to this utility model.

[0016] Figure 2 This is a schematic diagram showing the components of the multi-port connector, sealing cap, and filter assembly.

[0017] Figure 3 This is a side-mounted cross-sectional view of a water inlet valve connection structure compatible with different water inlet positions.

[0018] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0019] Figure 5 This is a cross-sectional view of the top mounting of a water inlet valve connection structure compatible with different water inlet positions.

[0020] Figure 6 Part A is a schematic diagram showing the installation status of the inlet valve on the left side.

[0021] Figure 6 Part b is a schematic diagram showing the installation status of the inlet valve on the right side.

[0022] Figure 7 Part A is a schematic diagram showing the inlet valve installed on the top left.

[0023] Figure 7 Part b is a schematic diagram showing the inlet valve installed on the top right.

[0024] Figure 8 This is a schematic diagram showing the inlet valve installed on the top right side of the water tank.

[0025] Figure 9 This is a schematic diagram showing the state after the water inlet valve is installed on the top right side of the water tank.

[0026] Figure 10 This is a schematic diagram showing the state after the water inlet valve is installed on the top left side of the water tank.

[0027] Figure 11 yes Figure 10 A magnified view of a portion of point A in the middle.

[0028] Figure 12 This is a schematic diagram showing the state after the water inlet valve is installed on the right side of the water tank.

[0029] Figure 13 This is a schematic diagram showing the state after the water inlet valve is installed on the left side of the water tank.

[0030] The reference numerals in the attached diagrams are as follows: 1. Inlet valve body; 11. Anti-rotation rib; 2. Switch valve; 21. First connector; 3. Multi-port connector; 31. Mounting interface; 32. Second connector; 321. Second nut; 322. Snap ring; 323. Anti-rotation notch; 33. Snap-fit ​​rib; 34. Stop rib; 4. Filter assembly; 41. Filter screen; 42. Fixed plug; 43. Locking nut; 5. Sealing cap; 6. Water tank body; 61. Fixed bracket; 62. C-groove; 63. Inlet interface; 7. Fixed buckle; 71. Connecting plate; 72. Connecting seat; 8. Water supply pipe connector. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] Please see Figures 1 to 7 A water inlet valve connection structure compatible with different water inlet positions is disclosed, comprising a water inlet valve body 1 and a switching valve 2. A multi-port connector 3 is connected between the water inlet of the water inlet valve body 1 and the water outlet of the switching valve 2. The multi-port connector 3 has two or more installation interfaces 31 facing different directions. The water inlet of the water inlet valve body 1 is connected to one of the installation interfaces 31, and the water outlet of the switching valve 2 is connected to one of the remaining installation interfaces 31. The multi-port connector 3 connects the water inlet valve body 1 and the switching valve 2, and the multi-port connector 3 has two or more installation interfaces 31 facing different directions, which can realize flexible switching of water inlet positions. The water tank inlet interface 63 is also fixed in different positions accordingly. End users do not need to add or remove parts, and can select the appropriate installation interface 31 and water inlet interface 63 according to the actual installation scenario (such as wall position, pipe direction), avoiding the problems of extending and winding the water supply pipe or being unable to install due to the interface facing the wall, reducing pipe material waste and installation time. In this embodiment, the water inlet position is the location where the water supply pipe connector 8 is directly connected to the switch valve 2. The water supply pipe includes the water supply pipe connector 8, and the water supply pipe is connected to the switch valve 2 through the water supply pipe connector 8. The water supply pipe is usually connected to a municipal water source. In other embodiments, the multi-port connector 3 has two installation interfaces 31 with different orientations. The installation interfaces 31 can form an angle between them, and the angle is not 180 degrees. In this case, the installation orientation of the other installation interface 31 can be changed by replacing the installation interface 31 connected to the water inlet of the water inlet valve, thereby changing the installation position of the switch valve 2 and the connection position between the switch valve 2 and the water supply pipe connector 8.

[0033] Please see Figures 1 to 7Preferably, the multi-port connector 3 has three or more installation interfaces 31, wherein any two installation interfaces 31 are connected to the inlet of the water inlet valve body 1 and the outlet of the switch valve 2, respectively, and the remaining installation interfaces 31 are spare installation interfaces, and the spare installation interfaces 31 are equipped with removable sealing caps 5. The multi-port connector 3 structure with spare installation interfaces 31 increases the expansion capability of the interfaces and allows for flexible selection of installation positions.

[0034] Please see Figures 1 to 7 Preferably, the multi-port connector 3 has four or more installation ports 31, where any two installation ports 31 are connected to the inlet of the inlet valve body 1 and the outlet of the switch valve 2, respectively. Any one of the installation ports 31 is connected to a filter assembly 4, which passes through the multi-port connector and is located in the water passage between the inlet of the inlet valve body 1 and the outlet of the switch valve 2. The remaining installation ports 31 are spare installation ports 31, each equipped with a removable sealing cap 5. The multi-port connector 3 connects to the filter assembly 4, and the spare installation ports 31 are equipped with sealing caps 5. On the one hand, the filter assembly 4 filters the water entering the inlet valve, preventing impurities from clogging the inlet valve body 1 and affecting its service life. On the other hand, the sealing caps 5 of the spare ports prevent leakage from unused ports while retaining space for port expansion. If the port position needs to be changed later, only the sealing cap 5 needs to be removed to reconnect the components, without the need for additional drilling or replacement of the multi-port connector. Please refer to [link to relevant documentation]. Figures 1 to 7 Preferably, the filter assembly 4 includes a filter screen 41 and a fixing member. The filter screen 41 is fixed to the fixing member and is inserted into the water passage of the multi-port connector 3 through the installation interface. The fixing member is fixed at the installation interface 31. The fixing member includes a fixing plug 42 and a locking nut 43. The locking nut 43 has a clearance hole. The fixing plug 42 passes through the clearance hole and engages with the filter screen 41. The size of the end of the fixing plug 42 away from the filter screen 41 is larger than the size of the clearance hole, and the size of the end of the filter screen 41 connected to the fixing plug 42 is larger than the size of the clearance hole. The installation interface 31 has threads that engage with the locking nut 43. This allows the user to easily disassemble the filter element for cleaning or replacement.

[0035] Please see Figures 1 to 7 Preferably, a first connecting piece 21 connects the switch valve 2 to the corresponding mounting interface 31. The first connecting piece 21 is a split nut, which includes two arc-shaped nut pieces. The two nut pieces are joined together, and the inner circumferential surface of the joined pieces has threads and a limiting groove. The outer circumferential surface of the mounting interface connected to the switch valve has external threads, and the outer circumferential surface of the outlet of the switch valve 2 has a limiting rib located in the limiting groove. The inner circumferential threads mate with the external threads of the mounting interface 31. This design facilitates installation in confined spaces, as the arc-shaped nut pieces can be individually fitted into the components before assembly. The engagement of the limiting groove and the limiting rib prevents the split nut from detaching from the switch valve, allowing for quick connection between the switch valve 2 and the multi-port connector 3.

[0036] Please see Figures 1 to 6 Preferably, a second connector 32 connects the inlet valve body 1 to the corresponding mounting interface 31. This facilitates quick connection between the switch valve 2, the inlet valve body 1, and the multi-way connector 3. The inlet valve body 1 and the switch valve 2 are assembled as a single unit, eliminating the need for hose connections and reducing product costs. The second connector 32 includes a second nut 321 and a retaining ring 322. The retaining ring 322 is located on the mounting interface 31 connected to the inlet valve body 1. The inner diameter of the end of the second nut 321 facing away from the inlet valve body 1 is smaller than the outer diameter of the retaining ring 322. The outer circumferential surface of the inlet of the inlet valve body 1 is threaded. The retaining ring 322 has an anti-rotation notch 323, and the end face of the inlet of the inlet of the inlet valve body 1 has an anti-rotation rib 11 that can pass through the anti-rotation notch 323. The retaining ring 322 is C-shaped, and a C-shaped second groove is arranged around the outer circumferential surface of the mounting interface 31 connected to the inlet valve body 13. The retaining ring 322 is located on the second groove. First, install the second nut 321 onto the multi-way connector 3, then engage the retaining ring 322 to prevent the second nut 321 from coming off. Next, screw the second nut 321 onto the external thread of the inlet of the water inlet valve body 1, with the anti-rotation rib 11 aligning with the anti-rotation notch 323 of the retaining ring. This ensures that the multi-way connector 3 and the water inlet valve body 1 remain parallel. In other embodiments, the first connecting member 21 and the second connecting member 32 can be configured with the same connection structure, selected according to actual installation requirements.

[0037] In another embodiment, two multi-port connectors 3 are provided, each multi-port connector 3 having at least three mounting interfaces 31; any two mounting interfaces 31 of one multi-port connector 3 are respectively connected to the switch valve 2 and one mounting interface 31 of the other multi-port connector 3, with the remaining mounting interface 31 reserved; one of the remaining two mounting interfaces 31 of the other multi-port connector 3 is connected to the inlet of the inlet valve body 1, and the other mounting interface 31 is connected to the filter assembly 4. By connecting the multi-port connectors 3 in series, the flexibility of the water circuit connection is increased, adapting to the complex internal space of the water tank.

[0038] Please see Figures 8 to 13Another toilet tank is provided, including a tank body 6. The tank body 6 has an inlet valve connection structure compatible with different inlet positions, as described above. The inner wall of the tank body 6 has at least two fixing brackets 61, each corresponding to an installation position. One of the inlet valve body 1, the multi-way connector 3, and the switch valve 2 has a fixing buckle 7. The inlet valve body 1 is engaged with one of the fixing brackets 61 via the fixing buckle 7. The tank body 6 has at least two fixing brackets 61, and the inlet valve body 1 is engaged with any fixing bracket 61 via the fixing buckle 7, enabling the matching and adjustment of the overall installation position of the inlet valve body 1. When switching the position of the inlet interface 63, the fixing buckle 7 can engage with the corresponding fixing bracket 61, ensuring that the entire inlet valve is aligned with the inlet interface 63, avoiding poor water connection or component interference due to positional misalignment.

[0039] Please see Figures 8 to 13 Preferably, the fixed bracket 61 includes two opposing positioning blocks, which are fixed to the inner circumferential surface of the water tank body 6. The surfaces of the two positioning blocks facing each other are provided with C-shaped grooves 62. The fixed buckle 7 includes a connecting plate 71 and a connecting seat 72. The connecting seat 72 is provided with a C-shaped first groove. The connecting plate 71 is located on the side of the connecting seat 72 away from the first groove. The connecting plate 71 is inserted between the two C-shaped grooves 62 of the fixed bracket 61. The first groove engages with the outer circumferential surface of the multi-port connector 3. The outer circumferential surface of the multi-port connector 3 is provided with a first groove engagement position. The first groove is provided with a stop rib 34. The two sides of the first groove engagement position are respectively provided with buckle retaining ribs 33. After the first groove engages with the first groove engagement position, the buckle retaining ribs 33 are located on both sides of the stop rib 34. The buckle retaining ribs 33 are used to restrict the axial movement of the fixed buckle 7. At least two water inlet ports 63 corresponding to the fixed bracket 61 can match different installation positions of the water inlet valve; multiple water inlet ports 63 are provided for the water tank, and the switch valve 2 can select the appropriate water inlet port 63 for installation according to the actual usage scenario. The fixing buckle 7 needs to change the snapping direction of the multi-port connector 3 according to the installation position. In this embodiment, the C-shaped groove 62 refers to the C-shaped cross-section formed between the inner wall of the water tank and the positioning block.

[0040] Please see Figures 8 to 13 Preferably, the water tank body 6 has at least two water inlet ports 63, corresponding to the positions of the corresponding fixing brackets 61; the water inlet of the switch valve 2 passes through the water inlet port 63 and connects to the water supply pipe, or the water supply pipe passes through the water inlet port 63 and connects to the water inlet of the switch valve 2. In this embodiment, four water inlet ports 63 are used, respectively located on the left and right sides of the water tank body 6, and on the left and right parts of the top surface of the water tank body 6, and four corresponding fixing brackets 61 are also provided. The water supply pipe connector 8 on the water supply pipe is connected to the switch valve 2 using a first connector 21.

[0041] The working principle of this utility model is as follows: 1. Water circuit component connection: According to the selected installation position, connect the outlet of the switch valve 2 to one of the installation interfaces 31 of the multi-way connector 3 through the first connector 21 (separate nut assembly and threaded connection); connect the inlet of the inlet valve body 1 to the other installation interface 31 of the multi-way connector 3 through the second connector 32; if the multi-way connector 3 is equipped with a filter assembly 4, ensure that the filter screen 41 of the filter assembly 4 is inserted into the water circuit, and seal the spare installation interface 31 with the sealing cap 5.

[0042] 2. Installation location selection and fixing: The end user selects the appropriate fixing bracket 61 and water inlet interface 63 on the water tank body 6 according to the actual pipe laying requirements (such as the direction of the water supply pipe and the wall position); the first slot of the fixing buckle 7 of the water inlet valve is engaged with the first slot of the multi-way connector 3 (the buckle retaining rib 33 restricts the relative sliding of the water inlet valve body 1 and the fixing buckle 7), thus completing the overall position fixing of the water inlet valve.

[0043] 3. Connect the water supply pipe: Pass the inlet end of the water supply pipe connector 8 (internal) connected to the switch valve 2 through the corresponding inlet interface 63 on the water tank body 6, and connect it to the external water supply pipe. The sealing ring on the edge of the inlet interface 63 ensures a seal to prevent leakage; simultaneously, the fixing clip 7 engages with the corresponding fixing bracket 61 (the connecting plate 71 is inserted into the C-groove 62 of the fixing bracket 61). For example... Figure 8 , Figure 9 The inlet valve is installed at the top right of the water tank. The inlet of the inlet valve body 1 is connected to the mounting interface 31 on the right side of the multi-way connector 3 (the mounting interface has a first slot for locking). The mounting interface 31 on the upper side of the multi-way connector 3 is connected to the outlet of the switch valve 2. The inlet of the switch valve 2 is connected to the water supply pipe connector 8. The water supply pipe connector 8 is inserted into the upper inlet interface 63 of the water tank body 6. The fixing buckle 7 is inserted into the longitudinal fixing seat 61 of the C-shaped groove 62 on the right side of the water tank body 6. The mounting interface 31 on the left side of the multi-way connector 3 is fitted with a sealing cover 5, and the mounting interface 31 on the lower side is fitted with a filter assembly 4. For example... Figure 10 As shown, the inlet valve is installed at the top left of the water tank. Figure 8 , Figure 9 For example (the entire assembly consisting of an inlet valve, multi-way connector, switch valve, and water supply pipe connector), the entire assembly is rotated 180° around a vertical axis, and the locking position of the fixing clip 7 is adjusted to the other side of the mounting interface 31. The fixing clip 7 is engaged in the longitudinal fixing seat 61 of the C-shaped groove 62 on the left side inside the water tank body 6, and the water supply pipe connector is fixed to the inlet interface 63 on the upper left side of the water tank body. Another example... Figure 12 As shown, the inlet valve is installed on the right side of the water tank. The inlet of the inlet valve body 1 is connected to the mounting interface (with a first slot mounting interface) on the left side of the multi-port connector 3. Figure 9 , Figure 12 The mounting interface on the upper side of the multi-way connector 3 is blocked by a sealing cap 5. The mounting interface on the right side is connected to the outlet of the switch valve 2. The inlet of the switch valve 2 is connected to the water supply pipe connector 8. The water supply pipe connector 8 is fixed to the water inlet 63 on the right side of the water tank body 6. The fixing buckle 7 is inserted into the horizontally arranged fixing bracket 61 in the C-shaped groove 62 on the right side of the water tank body 6. For example... Figure 13 As shown, the inlet valve is installed on the left side of the water tank, which will... Figure 12 The example (the whole consisting of the inlet valve, multi-way connector, switch valve and water supply pipe connector 8) is rotated 180° around the vertical axis and the snap-in position of the fixing buckle 7 is adjusted to the other side of the installation interface 31 (i.e. snapped in from the back of the first slot). The fixing buckle 7 snaps into the fixing seat 61 with the C-shaped groove on the left side of the water tank body 6 arranged horizontally. The water supply pipe connector 8 is fixed to the inlet interface 63 on the left side of the water tank body 6.

[0044] 4. Water inlet and filtration: Open the switch valve 2, and the water from the external water supply pipe enters the switch valve 2 and the multi-port connector 3 in sequence; if the multi-port connector 3 is connected to the filter assembly 4, when the water flows through the filter screen 41, impurities are intercepted, and clean water flows into the water inlet valve body 1; the water inlet valve body 1 automatically controls the water inlet according to the water level in the water tank body 6, and closes the valve when the water level reaches the set height, thus completing the water replenishment process.

[0045] 5. Interface position switching (if required): If the position of the inlet interface 63 needs to be changed later, simply disassemble the connecting parts between the switch valve 2 and the inlet valve body 1, remove the sealing cover 5, and connect the switch valve 2 and the inlet valve body 1 to other installation interfaces 31 of the multi-port connector 3; at the same time, remove the fixing clip 7 from the original fixing bracket and insert it into the fixing bracket 61 corresponding to the new position, and replace the water inlet end of the switch valve 2 to the corresponding inlet interface 63. The switching can be completed without adding or removing parts.

[0046] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0047] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0048] Finally, the above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0049] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.

Claims

1. A water inlet valve connection structure compatible with different water inlet positions, comprising a water inlet valve body and a switching valve, characterized in that: A multi-port connector is connected between the inlet of the inlet valve body and the outlet of the switch valve. The multi-port connector has two or more mounting interfaces facing different directions. The inlet of the inlet valve body is connected to one of the mounting interfaces, and the outlet of the switch valve is connected to one of the remaining mounting interfaces.

2. The inlet valve connection structure compatible with different inlet positions according to claim 1, characterized in that: The multi-port connector has three or more installation interfaces, wherein any two installation interfaces are connected to the water inlet of the water inlet valve body and the water outlet of the switch valve, respectively, and the remaining installation interfaces are spare installation interfaces, and the spare installation interfaces are provided with removable sealing caps.

3. The inlet valve connection structure compatible with different inlet positions according to claim 1, characterized in that: The multi-port connector has four or more installation interfaces, wherein any two installation interfaces are respectively connected to the inlet of the water inlet valve body and the outlet of the switch valve, and any one installation interface is connected to a filter assembly, which passes through the water passage between the inlet of the water inlet valve body and the outlet of the switch valve in the multi-port connector; the remaining installation interfaces are spare installation interfaces, and the spare installation interfaces are equipped with removable sealing caps.

4. The inlet valve connection structure compatible with different inlet positions according to claim 1, characterized in that: Two multi-port connectors are provided, and each multi-port connector has at least three mounting interfaces; any two mounting interfaces of one multi-port connector are respectively connected to the switch valve and one mounting interface of the other multi-port connector, and the remaining mounting interface is reserved; one of the remaining two mounting interfaces of the other multi-port connector is connected to the water inlet of the water inlet valve body, and the other mounting interface is connected to the filter assembly.

5. A water inlet valve connection structure compatible with different water inlet positions according to claim 3 or 4, characterized in that: The filter assembly includes a filter screen and a fixing member. The filter screen is fixed to the fixing member and is inserted into the water passage of the multi-port connector through the installation interface. The fixing member is fixed at the installation interface. The fixing member includes a fixing plug and a locking nut. The locking nut has a clearance hole. The fixing plug passes through the clearance hole and engages with the filter screen. The size of the end of the fixing plug away from the filter screen is larger than the size of the clearance hole. The size of the end of the filter screen connected to the fixing plug is larger than the size of the clearance hole. The installation interface has threads that engage with the locking nut.

6. The inlet valve connection structure compatible with different inlet positions according to claim 1, characterized in that: A first connector is connected between the switch valve and the corresponding mounting interface; the first connector is a split nut, which includes two arc-shaped nut pieces. The two nut pieces are joined together, and the inner circumferential surface of the joined pieces is provided with threads and a limiting groove. The outer circumferential surface of the mounting interface connected to the switch valve is provided with external threads, and the outer circumferential surface of the outlet of the switch valve is provided with a limiting rib. The limiting rib is located in the limiting groove, and the inner circumferential thread engages with the external thread of the mounting interface.

7. A water inlet valve connection structure compatible with different water inlet positions according to claim 1 or 6, characterized in that: A second connector is connected between the inlet valve body and the corresponding mounting interface. The second connector includes a second nut and a retaining ring. The retaining ring is disposed on the mounting interface connected to the inlet valve body. The inner diameter of the end of the second nut away from the inlet valve is smaller than the outer diameter of the retaining ring. The outer circumferential surface of the inlet of the inlet valve is threaded. The retaining ring is provided with an anti-rotation notch. The end face of the inlet of the inlet of the inlet valve body is provided with an anti-rotation rib. The anti-rotation rib can pass through the anti-rotation notch. The retaining ring is C-shaped. A C-shaped second retaining groove is provided around the outer circumferential surface of the mounting interface connected to the inlet valve body. The retaining ring is disposed on the second retaining groove.

8. A toilet tank, comprising a tank body, characterized in that: The water tank body is provided with an inlet valve connection structure compatible with different inlet positions as described in any one of claims 1-7. The inner wall of the water tank body is provided with at least two fixing brackets, each of the fixing brackets corresponding to an installation position. The inlet valve body, the multi-way connector and the switch valve are provided with fixing buckles, and the inlet valve body is engaged with one of the fixing brackets through the fixing buckles.

9. A toilet tank according to claim 8, characterized in that: The fixing bracket includes two opposing positioning blocks, which are fixed to the inner circumferential surface of the water tank body. The surfaces of the two positioning blocks facing each other have C-shaped grooves. The fixing buckle includes a connecting plate and a connecting seat. The connecting seat has a first C-shaped groove. The connecting plate is located on the side of the connecting seat opposite to the first groove, and the connecting plate is engaged between the two C-shaped grooves of the fixing seat. The first groove engages with the outer circumferential surface of the multi-port connector. The outer circumferential surface of the multi-port connector has a first groove engagement position. The first groove is provided with a stop rib. Buckle ribs are provided on both sides of the first groove engagement position. After the first groove engages with the first groove engagement position, the buckle ribs are located on both sides of the stop ribs, and the buckle ribs are used to restrict the axial movement of the fixing buckle.

10. A toilet tank according to claim 8, characterized in that: The water tank body has at least two water inlet ports, which correspond to the positions of the corresponding fixed brackets; the water inlet of the switch valve passes through the water inlet ports and is connected to the water supply pipe, or the water supply pipe passes through the water inlet ports and is connected to the water inlet of the switch valve.

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