Toilet waterway connection structure and toilet waterway

Abstract

The utility model provides a kind of toilet waterway connection structure and toilet waterway, toilet waterway connection structure, including metal connecting pipe fitting, first nut, second nut and locating block, metal connecting pipe fitting includes first threaded connection part and second threaded connection part;First nut is connected with first threaded connection part for locking metal connecting pipe fitting on toilet waterway, second nut is connected with second threaded connection part for locking hose on metal connecting pipe fitting, locating block is compressed between first nut and second nut, locating block has locating internal thread, when the first threaded connection part and second threaded connection part of metal connecting pipe fitting rotate along the same first rotation direction, locking with first nut, second nut and locating block, so that first nut and second nut do not directly contact, avoid that both mutually influence leads to not locking tightly water leakage, and in the process that second nut locks hose on metal connecting pipe fitting, locating block is driven by the driving force of second nut, can rotate in the same direction to lock more tightly.

Description

Technical Field

[0001] This utility model relates to the field of toilet water circuits, and in particular to a toilet water circuit connection structure and a toilet water circuit. Background Technology

[0002] Current toilets typically use municipal water for flushing or personal cleaning. To ensure connection stability, metal connectors are generally used, which are then secured to the toilet's water supply line with nuts. The braided hose connecting to the municipal water supply is also secured to the connector with nuts.

[0003] If the two nuts abut against each other when tightening, they will not be able to be tightened.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome at least one of the shortcomings of the prior art and to provide a toilet water circuit connection structure and a toilet water circuit.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A toilet water circuit connection structure, comprising: A metal connecting pipe fitting extends in one direction and includes a first threaded connection portion and a second threaded connection portion, wherein the first threaded connection portion is connected to a toilet water circuit and the second threaded connection portion is connected to a hose. A first nut is connected to the first threaded connection part to lock the metal connecting pipe in the toilet water line, and the first threaded connection part is locked with the first nut along the first rotation direction; A second nut, connected to the second threaded connection portion for locking the hose to the metal connection fitting, wherein the second threaded connection portion is locked to the second nut along the first rotation direction; and A positioning block is disposed between a first nut and a second nut and is pressed in place when the first nut and the second nut are locked onto the metal connecting pipe fitting. The positioning block has a positioning internal thread, and the metal connecting pipe fitting is connected to the positioning internal thread along the first rotation direction.

[0007] By setting a positioning block between the first nut and the second nut, the first nut and the second nut will not come into direct contact, thus avoiding mutual interference that could lead to leaks due to insufficient locking. At the same time, the threaded locking direction of the positioning block is the same as that of the first nut and the second nut. Therefore, during the process of the second nut locking the hose to the metal connecting pipe, the positioning block is driven by the second nut and can rotate in the same direction to lock it more tightly.

[0008] Preferably, a limiting protrusion is included between the first threaded connection portion and the second threaded connection portion, the limiting protrusion protruding radially outwards from the maximum outer contour of the first threaded connection portion and the second threaded connection portion.

[0009] Preferably, the metal connecting pipe is made of copper or a copper alloy.

[0010] Preferably, the first threaded connection portion, the second threaded connection portion, and the limiting protrusion are formed by turning.

[0011] By machining the first threaded connection, the second threaded connection, and the limiting protrusion, the machining of the positioning block with a larger radial dimension can be reduced, thus reducing the material wastage and machining time wasted during the machining of the first and second threaded connections, and lowering costs.

[0012] By setting the axial direction of the through hole of the connecting bracket to be radial to the water inlet pipe, the outer peripheral wall of the water inlet pipe is formed by mold closing in the direction and can be demolded.

[0013] Preferably, the inner circumferential side of the positioning block includes a positioning step, the positioning internal thread of the positioning block is threadedly connected to the first threaded connection portion, and the positioning step faces the limiting protrusion to abut against the limiting protrusion.

[0014] Preferably, the outer peripheral wall of the positioning block protrudes beyond the maximum outer contour of the limiting protrusion ring.

[0015] Preferably, the positioning block is made of plastic material and is integrally molded by injection molding.

[0016] This utility model also provides a toilet water circuit, which includes a water distribution valve for supplying water to the toilet water-using components and a toilet water circuit connection structure as described in any of the above embodiments.

[0017] Preferably, the toilet water circuit includes a positioning ring, the water diversion valve includes a water inlet end, the water inlet end is inserted into the metal connecting pipe, the positioning ring is sleeved on the water inlet end, the first nut includes a locking ring, the locking ring locks the metal connecting pipe onto the water diversion valve by tightening the positioning ring.

[0018] Preferably, an annular sealing groove is provided on the outer periphery of the portion of the water inlet end that is inserted into the metal connecting pipe, and an annular sealing element is provided in the annular sealing groove. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0020] Figure 1 A schematic diagram illustrating the state of a waterway connection structure according to an embodiment of the present invention is shown. Figure 2 A schematic diagram illustrating the state of a metal connecting pipe fitting, a first nut, a second nut, and a positioning block according to an embodiment of the present invention is shown. Figure 3 A cross-sectional structural reference diagram of a waterway connection structure according to an embodiment of the present invention is shown.

[0021] Figure label: 1. Metal connecting pipe fittings; 11. First threaded connection part; 12. Second threaded connection part; 13. Limiting protrusion ring; 2. First nut; 21. Locking ring; 3. Second nut; 4. Positioning block; 41. Positioning step; 5. Water distribution valve; 51. Water inlet end; 52. Positioning ring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] Unless otherwise specified, the terms “first,” “second,” or “third,” etc., in the claims and description are used to distinguish different objects and not to describe a particular order.

[0024] Unless otherwise specified, in the claims and description, the terms “center,” “lateral,” “longitudinal,” “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “clockwise,” “counterclockwise,” etc., indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the purpose of simplifying the description, and do not imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation.

[0025] Unless otherwise specified in the claims and description, the terms "fixed connection" or "fixed connection" shall be interpreted broadly to mean any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection by other means or components.

[0026] "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0027] The following will be combined with the appendix Figure 1 To be continued Figure 3 The technical solutions in the embodiments are described clearly and completely.

[0028] An embodiment of this utility model provides a toilet water circuit, which is installed in the toilet and used to supply water to the toilet tank or other water-using components. The toilet water circuit includes a toilet water circuit connection structure connecting the diverter valve 5 and the hose supplying municipal water. (Reference) Figure 1 The water distribution valve 5 is used to distribute municipal water to the toilet tank or other water-using components. These components can be brush ring tanks, personal cleaning tanks, etc. The arrangement of these water-using components is a well-known technology in the field of toilet water systems, such as ordinary toilets, smart toilets, or wall-hung toilets, and will not be elaborated on here.

[0029] refer to Figure 1 and Figure 2 The toilet water circuit connection structure also includes a first nut 2, a second nut 3, and a positioning block 4. The first nut 2 is used to lock the metal connecting pipe 1 onto the water inlet 51 of the water distribution valve 5. The second nut 3 is used to lock the hose onto the metal connecting pipe 1. The positioning block 4 is disposed between the first nut 2 and the second nut 3 and is pressed when the first nut 2 and the second nut 3 are locked onto the metal connecting pipe 1. The positioning block 4 has a positioning internal thread, and the metal connecting pipe 1 is connected to the positioning internal thread along the first rotation direction.

[0030] refer to Figure 2 and Figure 3 The water distribution valve 5 includes an inlet pipe for connecting to a municipal water source. The inlet pipe includes a pipe body and an inlet end 51 at the front end of the pipe body. The radial dimension of the inlet end 51 is smaller than the radial dimension of the pipe body, thus forming a positioning step 41 at the front end edge of the pipe body. After the first nut 2 is fitted onto the pipe body, a positioning ring 52 is provided on the positioning step 41. The inlet end 51 of the inlet pipe is then inserted into the metal connecting pipe fitting 1, thereby connecting the water passage within the inlet connecting pipe fitting. The inner circumference of the first nut 2 has a locking ring 21 that protrudes radially inward. The locking ring 21 locks the metal connecting pipe fitting 1 onto the water distribution valve 5 by pressing against the positioning ring 52.

[0031] The water inlet connection fitting includes a pipe body extending in a linear direction, which is made of copper or a copper alloy. A first threaded connection portion 11, a second threaded connection portion 12, and a limiting protrusion ring 13 are correspondingly arranged at both ends of the pipe body. The first threaded connection portion 11, the second threaded connection portion 12, and the limiting protrusion ring 13 are formed by machining. Using copper or a copper alloy to supply water to the toilet provides a cleaner water source when supplying water to the personal hygiene water components. Furthermore, copper or copper alloy has better material strength than injection-molded materials, providing better connection strength. The limiting protrusion ring 13 protrudes radially beyond the maximum outer contour of the first threaded connection portion 11 and the second threaded connection portion 12.

[0032] Before the inlet connector is inserted into the inlet end 51, the positioning block 4 is inserted from the end of the first threaded connection part 11 and screwed into the first threaded connection part 11, thus abutting against the limiting protrusion ring 13. After the inlet connector is inserted into the inlet end 51, the first nut 2, which is already fitted on the pipe body, is screwed into the first threaded connection part 11, thus locking the metal connector 1 onto the inlet pipe. Next, the second nut 3, which is provided on the braided hose, is screwed into the second threaded connection part 12, thereby locking the hose onto the metal connector 1. The spiral directions of the first threaded connection part 11 and the second threaded connection part 12 are the same, and the screwing direction of the positioning block's internal thread relative to the metal connector 1 is consistent with the direction of the first nut 2 and the second nut 3.

[0033] In one exemplary embodiment, reference Figure 2 and Figure 3 The inner circumferential side of the positioning block 4 includes a positioning step 41. The positioning internal thread of the positioning block 4 is threadedly connected to the first threaded connection part 11. The positioning step 41 faces the limiting protrusion 13 to abut against the limiting protrusion 13. The separate design of the positioning block 4 avoids the need to machine a structure with the first threaded connection part 11, the second threaded connection part 12, and the limiting protrusion 13 using a larger diameter metal material. Furthermore, the positioning block 4 employs a positioning internal thread structure, allowing it to rotate in the same direction as the first nut 2 and the second nut 3. This enhances the locking strength while providing better support strength compared to positioning blocks 4 that are plastically molded on the outside of the metal connecting pipe fitting 1, and also reduces production costs.

[0034] In one exemplary embodiment, the outer peripheral wall of the positioning block 4 protrudes beyond the maximum outer contour of the limiting protrusion ring 13 to support the first nut 2 and the second nut 3.

[0035] In one exemplary embodiment, the positioning block 4 is made of plastic material and is integrally molded by injection molding.

[0036] In one exemplary embodiment, an annular sealing groove is provided on the outer periphery of the portion of the water inlet end 51 that is inserted into the metal connecting pipe 1, and an annular sealing element is provided in the annular sealing groove.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A toilet water circuit connection structure, characterized in that, include: A metal connecting pipe (1) extends in one direction and includes a first threaded connection (11) and a second threaded connection (12), wherein the first threaded connection (11) is connected to the toilet water circuit and the second threaded connection (12) is connected to the hose. The first nut (2) is connected to the first threaded connection part (11) to lock the metal connecting pipe (1) on the toilet water line. The first threaded connection part (11) is locked with the first nut (2) along the first rotation direction. A second nut (3) is connected to the second threaded connection (12) to lock the hose onto the metal connecting fitting (1), the second threaded connection (12) being locked to the second nut (3) along the first rotation direction; and The positioning block (4) is disposed between the first nut (2) and the second nut (3) and is pressed when the first nut (2) and the second nut (3) are locked onto the metal connecting pipe (1). The positioning block (4) has a positioning internal thread, and the metal connecting pipe (1) is connected to the positioning internal thread along the first rotation direction.

2. The toilet water circuit connection structure according to claim 1, characterized in that, A limiting ring (13) is included between the first threaded connection portion (11) and the second threaded connection portion (12), the limiting ring (13) protruding outward in the radial direction beyond the maximum outer contour of the first threaded connection portion (11) and the second threaded connection portion (12).

3. The toilet water circuit connection structure according to claim 2, characterized in that, The metal connecting pipe (1) is made of copper or copper alloy.

4. The toilet water circuit connection structure according to claim 3, characterized in that, The first threaded connection (11), the second threaded connection (12) and the limiting protrusion (13) are formed by turning.

5. The toilet water circuit connection structure according to claim 3 or 4, characterized in that, The inner circumferential side of the positioning block (4) includes a positioning step (41), the positioning internal thread of the positioning block (4) is threadedly connected to the first threaded connection part (11), and the positioning step (41) faces the limiting protrusion (13) to abut against the limiting protrusion (13).

6. The toilet water circuit connection structure according to claim 5, characterized in that, The outer peripheral wall of the positioning block (4) protrudes beyond the maximum outer contour of the limiting protrusion ring (13).

7. The toilet water circuit connection structure according to claim 1, characterized in that, The positioning block (4) is made of plastic material and is integrally molded by injection molding.

8. A toilet water system, characterized in that, It includes a water distribution valve (5) for supplying water to the toilet water components and a toilet water circuit connection structure as described in any one of claims 1-7.

9. The toilet water circuit according to claim 8, characterized in that, The water distribution valve (5) includes a positioning ring (52) and an inlet end (51) into which the metal connecting pipe (1) is inserted. The positioning ring (52) is fitted on the inlet end (51). The first nut (2) includes a locking ring (21). The locking ring (21) locks the metal connecting pipe (1) onto the water distribution valve (5) by pressing against the positioning ring (52).

10. The toilet water system according to claim 9, characterized in that, An annular sealing groove is provided on the outer periphery of the part of the water inlet end (51) that is inserted into the metal connecting pipe (1), and an annular sealing element is provided in the annular sealing groove.

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