A toilet and a toilet bottom flushing head thereof

Abstract

This utility model discloses a toilet and its bottom flushing head. The bottom flushing head includes a nozzle body for installation in a spray hole at the bottom of the toilet bowl. The rear end of the nozzle body is the water inlet, and the front end is the water outlet. The inner cavity of the nozzle body forms a water passage connecting the water inlet and the water outlet. The bottom flushing head also includes a separately manufactured water outlet cover, which is fixed to the front end of the nozzle body. The inner wall of the water outlet cover and the end face of the water outlet of the nozzle body form a water passage cavity communicating with the water passage. The bottom of the water outlet cover has a first water outlet that extends from back to front. Water flows from the first outlet from back to front. The first outlet is at least partially lower than the lowest point of the water passage and is connected to the water passage cavity. This utility model's bottom flushing head can more effectively and extensively flush away dirt adhering to the bottom wall of the toilet bowl, significantly improving the flushing effect.

Description

Technical Field

[0001] This utility model relates to a toilet bottom flush head, and a toilet having the toilet bottom flush head. Background Technology

[0002] Currently, most toilets on the market use a single-piece spray nozzle for the flush head. Due to the limitations of injection molding molds, the nozzle's position cannot be positioned as low as possible in order to achieve this. However, a lower nozzle position is more effective at flushing away waste adhering to the toilet bowl's bottom. Therefore, when the nozzle cannot be positioned as low as possible, existing technologies typically design it to be angled downwards along the water flow direction to flush away waste near the toilet bowl's bottom. For example, the prior art disclosed in Chinese Utility Model Patent No. CN209129104U, entitled "A Toilet and Toilet Nozzle Structure," illustrates this.

[0003] The inventors discovered that while existing technologies, by designing the water outlet angle to be tilted downwards along the water flow direction, can improve the flushing effect on the dirt attached to the bottom wall of the toilet bowl to some extent, there is still a large jet blind zone below the water outlet. This makes it impossible to effectively flush the dirt attached to the bottom wall of the toilet bowl in the jet blind zone, and the flushing effect still needs further improvement.

[0004] Therefore, it is still necessary to further improve the flushing effect of the toilet bottom flush head. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to propose a toilet bottom flushing head that can further improve the flushing effect, and a toilet having the toilet bottom flushing head.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A toilet bottom flushing head includes a nozzle body for installation in a spray hole at the bottom of the toilet bowl. The rear end of the nozzle body is a water inlet, and the front end is a water outlet. The inner cavity of the nozzle body forms a water passage connecting the water inlet and the water outlet. It also includes a separately manufactured water outlet cover, which is fixed to the front end of the nozzle body. The inner wall of the water outlet cover and the end face of the water outlet of the nozzle body form a water passage cavity communicating with the water passage. The bottom of the water outlet cover has a first water outlet that extends from back to front. Water flows out from the first water outlet from back to front. The first water outlet is at least partially lower than the lowest position of the water passage. The first water outlet is connected to the water passage cavity.

[0008] It should be explained here that the first water outlet of this utility model is at least partially lower than the lowest position of the water passage. In other words, the projection of the first water outlet on the axial direction of the nozzle body is at least partially lower than the projection of the lowest position of the water passage on the axial direction of the nozzle body.

[0009] In some preferred embodiments, the water outlet cover is fixed to the nozzle body by welding, snap-fitting, or bonding.

[0010] In some preferred embodiments, the water outlet cover includes a panel and a peripheral wall disposed around the panel, the first water outlet is disposed at the bottom of the panel, and the peripheral wall is fixedly connected to the end face of the nozzle body.

[0011] In some preferred embodiments, the first outlet is lower than the lowest point of the water passage.

[0012] In some preferred embodiments, a second water outlet is provided on the water outlet cover above the first water outlet, and the water passage is connected to the first water outlet and the second water outlet respectively.

[0013] In some preferred embodiments, the centerline of the first outlet is parallel to the centerline of the nozzle body, or the centerline of the first outlet is inclined downward along the water flow direction; the centerline of the second outlet is parallel to the centerline of the nozzle body, or the centerline of the second outlet is inclined downward along the water flow direction.

[0014] In some preferred embodiments, the cross-sectional area of ​​the second outlet is larger than that of the first outlet.

[0015] In some preferred embodiments, an insert is connected to the inner side of the water outlet cover. The insert is inserted into the water passage, and a flow gap is formed between the outer wall of the insert and the inner wall of the water passage. The insertion end of the insert forms an opening and communicates with the water passage. The end of the insert away from the insertion end forms the second water outlet.

[0016] In some preferred embodiments, the water outlet end of the nozzle body is turned outward to form a flange, which is used to abut against the periphery of the spray hole. The outer peripheral wall of the nozzle body is provided with external threads. The toilet bottom flush head also includes a locking nut that mates with the external threads and a sealing gasket that mates with the flange.

[0017] In addition, this utility model also provides a toilet, including a toilet seat, wherein the bottom of the toilet bowl of the toilet seat is provided with a spray hole, and a toilet bottom flushing head as described in any of the above claims is installed at the spray hole.

[0018] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0019] This utility model designs a toilet bottom flush head comprising a separately manufactured spray pipe body and a water outlet cover, with the water outlet cover fixed to the water outlet end (front end) of the spray pipe body. The inner cavity of the spray pipe body forms a water passage connecting its inlet and outlet ends. The inner wall of the water outlet cover and the end face of the spray pipe body's outlet end form a water passage cavity communicating with the water passage. The bottom of the water outlet cover has a first water outlet that extends from front to back, with water flowing from back to front. The first water outlet is at least partially lower than the lowest point of the water passage and is connected to the water passage cavity. Through this structural design, the first water outlet can be positioned as low as possible within the toilet bottom flush head, as close as possible to the bottom edge of the water outlet cover. This allows it to be closer to the bottom wall of the toilet bowl, significantly reducing or even eliminating the jet blind zone below the first water outlet. This enables a wider and more effective flushing of dirt adhering to the bottom wall of the toilet bowl, significantly improving the flushing effect of the toilet bottom flush head. Attached Figure Description

[0020] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0021] in:

[0022] Figure 1 This is a three-dimensional structural diagram of the toilet bottom flushing head according to the first embodiment of this utility model;

[0023] Figure 2 This is a three-dimensional schematic diagram of the water outlet cover of the first embodiment of this utility model;

[0024] Figure 3 This is one of the exploded views of the toilet bottom flush head according to the first embodiment of this utility model;

[0025] Figure 4 This is the second exploded view of the toilet bottom flush head according to the first embodiment of this utility model;

[0026] Figure 5 This is a cross-sectional view of the toilet bottom flushing head according to the first embodiment of this utility model;

[0027] Figure 6 This is a perspective sectional view of the toilet bottom flushing head according to the first embodiment of this utility model;

[0028] Figure 7 This is a cross-sectional view of the toilet bottom flushing head installed on the toilet seat according to the first embodiment of this utility model;

[0029] Figure 8 This is a cross-sectional view of the toilet bottom flushing head according to the second embodiment of this utility model;

[0030] Figure 9 This is a perspective sectional view of the toilet bottom flushing head according to the second embodiment of this utility model;

[0031] Figure 10 This is a three-dimensional schematic diagram of the water outlet cover of the third embodiment of this utility model;

[0032] Figure 11 This is a cross-sectional view of the water outlet cover of the third embodiment of this utility model.

[0033] The attached figures are labeled as follows:

[0034] 1- Toilet bottom flush head:

[0035] 10- Nozzle body; 11- Inlet end; 12- Outlet end; 13- Water passage; 131- Lowest position of water passage; 14- Flanged edge; 15- Centerline of nozzle body; 20- Outlet cover; 21- Panel; 211- First outlet; 212- Second outlet; 22- Peripheral wall; 23- Insert pipe; 30- Water passage cavity; 40- Flow gap; 50- Locking nut; 60- Sealing gasket;

[0036] 2-Toilet seat:

[0037] 100 - Toilet bowl; 110 - Jet nozzle. Detailed Implementation

[0038] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0039] Please see Figures 1 to 7The toilet bottom flushing head 1 of the first preferred embodiment of this utility model includes a nozzle body 10, which is installed in a spray hole 110 at the bottom of a toilet bowl 100. The rear end of the nozzle body 10 is a water inlet 11, and the front end is a water outlet 12. The inner cavity of the nozzle body 10 forms a water passage 13 connecting the water inlet 11 and the water outlet 12. The water inlet 11 of the nozzle body 10 is connected to an external water supply line. The toilet bottom flushing head 1 also includes a separately manufactured water outlet cover 20, which is fixed to the water outlet 12 (i.e., the front end) of the nozzle body 10. The inner wall of the water outlet cover 20 and the end face of the water outlet 12 of the nozzle body form a water passage cavity 30 that communicates with the water passage 13. The bottom of the water outlet cover 20 is provided with a first water outlet 211 that runs through the front and back. The water flowing from the first water outlet 211 flows out from the back to the front. The first water outlet 211 is at least partially lower than the lowest position 131 of the water passage 13. The first water outlet 211 is connected to the water passage cavity 30. The water flowing into the nozzle body 10 from the external water supply path passes through the water passage 13, the water passage cavity 30 and the first water outlet 211 in sequence from back to front, and finally flows out from the first water outlet 211 from back to front (see...). Figure 5 and Figure 6 The water flow path indicated by the dashed arrow is used to flush the bottom of the toilet bowl 100 (see...). Figure 7 ).

[0040] Here, it needs to be explained that the first water outlet 211 of this utility model is at least partially lower than the lowest position 131 of the water passage 13. In other words, the projection of the first water outlet 211 on the axial direction of the nozzle body 10 is at least partially lower than the projection of the lowest position 131 of the water passage 13 on the axial direction of the nozzle body 10.

[0041] The above solution designs the toilet bottom flush head as including a separately manufactured spray pipe body 10 and a water outlet cover 20, with the water outlet cover 20 fixed to the water outlet end 12 (front end) of the spray pipe body 10. The inner cavity of the spray pipe body 10 forms a water passage 13 connecting its water inlet end 11 and water outlet end 12. The inner wall of the water outlet cover 20 and the end face of the water outlet end 12 of the spray pipe body 10 form a water passage cavity 30 communicating with the water passage 13. The bottom of the water outlet cover 20 is provided with a first water outlet 211 that extends from back to front, and the water flow from the first water outlet 211 flows out from back to front. At least part of the first outlet 211 is lower than the lowest position 131 of the water passage 13. The first outlet 211 is connected to the water passage cavity 30. Through the above structural design, the position of the first outlet 211 can be designed as low as possible at the bottom of the toilet flush head, and can be designed as close as possible to the bottom edge of the water outlet cover 20. This allows it to be closer to the bottom wall of the toilet bowl 100, greatly reducing or even basically eliminating the jet blind zone below the first outlet 211. This allows for a wider range and more effective flushing of dirt attached to the bottom wall of the toilet bowl, significantly improving the flushing effect of the toilet bottom flush head.

[0042] The water outlet cover 20 and the nozzle body 10, which are manufactured separately, can be fixed together by welding, snap-fitting, or gluing. Specifically, in this embodiment, welding is used to fix the two together.

[0043] In this embodiment, the water outlet cover 20 includes a panel 21 and a peripheral wall 22 disposed around the panel 21. The first water outlet 211 is disposed at the bottom of the panel 21, and the peripheral wall 22 is welded and fixedly connected to the end face of the nozzle body 10.

[0044] Preferably, in this embodiment, the entire first water outlet 211 (i.e., the entire first water outlet 211) is lower than the lowest position 131 of the water passage 13. That is, the projection of the first water outlet 211 on the axial direction of the nozzle body 10 is entirely lower than the projection of the lowest position 131 of the water passage 13 on the axial direction of the nozzle body 10. It can be understood that the lower the position of the first water outlet 211, the better the flushing effect on the dirt attached to the bottom wall of the toilet bowl.

[0045] In this embodiment, the water outlet 12 of the nozzle body 10 is turned outward to form a flange 14, which is used to abut against the periphery of the spray hole 110. The outer peripheral wall 22 of the nozzle body 10 is provided with external threads. The toilet bottom flushing head 1 also includes a locking nut 50 that mates with the external threads, and a sealing gasket 60 that mates with the flange 14. When the locking nut 50 is threadedly locked to the nozzle body 10, the sealing gasket 60 is clamped between the flange 14 of the nozzle body 10 and the periphery of the spray hole 110, thus providing a sealing effect. In this embodiment, the sealing gasket 60 is a triangular gasket.

[0046] Please see Figure 8 and Figure 9The toilet bottom flushing head 1 provided in the second preferred embodiment of this utility model is mainly different from the first embodiment in that the first embodiment only has a first water outlet 211 on the water outlet cover 20, while in this embodiment, a second water outlet 212 is provided on the water outlet cover 20 above the first water outlet 211, and the water passage 13 is connected to the first water outlet 211 and the second water outlet 212 respectively.

[0047] In this embodiment, the centerlines of the first water outlet 211 and the second water outlet 212 are both arranged parallel to the centerline 15 of the nozzle body 10.

[0048] In this embodiment, the cross-sectional area of ​​the second outlet 212 is larger than that of the first outlet 211. This results in a larger flow rate and lower water pressure at the second outlet 212, while the flow rate and pressure at the first outlet 2112 are smaller. Thus, the water flow from the second outlet 212 is primarily used to quickly flush the sewage at the bottom of the toilet bowl into the drain pipe, enabling a siphon effect. Meanwhile, the water flow from the first outlet 211 is primarily used to directly flush away any debris adhering to the bottom wall of the toilet bowl.

[0049] In this embodiment, by adding a second water outlet 212, while ensuring the flushing effect of the first water outlet 211 on the bottom wall of the toilet bowl, a portion of the flushing water is diverted and sprayed out through the second water outlet 212. Furthermore, the water output of the second water outlet 212 is greater than that of the first water outlet 211. After spraying, the water sprayed from the second water outlet 212 can, to a certain extent, envelop the water sprayed from the first water outlet 211, forming a "water-encased water" effect, which can reduce the spraying noise of the first water outlet 211 to a certain extent.

[0050] In order to achieve a simple structure that allows the water passage 13 to connect to the first outlet 211 and the second outlet 212 respectively, in this embodiment, an insert tube 23 is connected to the inside of the water outlet cover 20. The insert tube 23 is directly inserted into the water passage 13, and a flow gap 40 is formed between the outer wall of the insert tube 23 and the inner wall of the water passage 13. The insertion end of the insert tube 23 forms an opening and communicates with the water passage 13. The end of the insert tube 23 away from the insertion end forms the second outlet 212. With this design, the water in the water passage 13 can be diverted into the insert tube 23 and the flow gap 40, and then flow to the first outlet 211 and the second outlet 212 respectively through the insert tube 23 and the flow gap 40.

[0051] The remaining structures and principles not described in this embodiment refer to the first embodiment above, and will not be repeated here.

[0052] Please see Figure 10 and Figure 11The toilet bottom flushing head 1 of the third preferred embodiment of this utility model differs from the second embodiment in that, in the second embodiment, the axis lines of the first water outlet 211 and the second water outlet 212 are both parallel to the axis line 15 of the nozzle body 10; while in this embodiment, the axis line of the first water outlet 211 is parallel to the axis line 15 of the nozzle body 10, and the axis line of the second water outlet 212 is inclined downward along the water flow direction. This allows the water flowing from the second water outlet 212 to flush away the attached dirt on the bottom wall of the toilet bowl even at a certain distance from the second water outlet 212. It is understood that in other embodiments, the axis line of the first water outlet 211 can also be inclined downward along the water flow direction. This design can further reduce the jet blind zone below the water outlet in the prior art and further expand the flushing range of dirt attached to the bottom wall of the toilet bowl.

[0053] The remaining structures and principles not described in this embodiment refer to the second embodiment above, and will not be repeated here.

[0054] In addition, see Figures 1-11 The present invention also provides a toilet, including a toilet seat 2, wherein the bottom of the toilet bowl 100 of the toilet seat 2 is provided with a spray hole 110, and a toilet bottom flushing head 1 as described above is installed at the spray hole 110.

[0055] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A toilet bottom flushing head, comprising a spray pipe body for installation in a spray hole at the bottom of a toilet bowl, wherein the rear end of the spray pipe body is a water inlet and the front end is a water outlet, and the inner cavity of the spray pipe body forms a water passage connecting the water inlet and the water outlet, characterized in that, It also includes a separately manufactured water outlet cover, which is fixed to the front end of the nozzle body. The inner wall of the water outlet cover and the end face of the water outlet end of the nozzle form a water passage cavity that communicates with the water passage. The bottom of the water outlet cover is provided with a first water outlet that runs through the front and back. The water from the first water outlet flows out from back to front. The first water outlet is at least partially lower than the lowest position of the water passage. The first water outlet is connected to the water passage cavity.

2. A toilet bottom flushing head according to claim 1, characterized in that, The water outlet cover is fixed to the main body of the nozzle by welding, snap-fitting, or bonding.

3. A toilet bottom flushing head according to claim 2, characterized in that, The water outlet cover includes a panel and a peripheral wall around the panel. The first water outlet is located at the bottom of the panel, and the peripheral wall is fixedly connected to the end face of the nozzle body.

4. A toilet bottom flushing head according to claim 1, characterized in that, The first water outlet is lower than the lowest point of the water passage.

5. A toilet bottom flushing head according to claim 1, characterized in that, The water outlet cover is provided with a second water outlet above the first water outlet, and the water passage is connected to the first water outlet and the second water outlet respectively.

6. A toilet bottom flushing head according to claim 5, characterized in that, The centerline of the first water outlet is parallel to the centerline of the nozzle body, or the centerline of the first water outlet is inclined downward along the water flow direction; the centerline of the second water outlet is parallel to the centerline of the nozzle body, or the centerline of the second water outlet is inclined downward along the water flow direction.

7. A toilet bottom flushing head according to claim 5, characterized in that, The cross-sectional area of ​​the second outlet is larger than that of the first outlet.

8. A toilet bottom flushing head according to claim 5, characterized in that, An insertion tube is connected to the inner side of the water outlet cover. The insertion tube is inserted into the water passage, and a flow gap is formed between the outer wall of the insertion tube and the inner wall of the water passage. The insertion end of the insertion tube forms an opening and communicates with the water passage. The end of the insertion tube away from the insertion end forms the second water outlet.

9. A toilet bottom flushing head according to claim 1, characterized in that, The water outlet end of the nozzle body is turned outward to form a flange, which is used to abut against the periphery of the spray hole. The outer peripheral wall of the nozzle body is provided with external threads. The toilet bottom flush head also includes a locking nut that mates with the external threads and a sealing gasket that mates with the flange.

10. A toilet, comprising a toilet seat, wherein the bottom of the toilet bowl of the toilet seat is provided with a jet hole, characterized in that, The spray nozzle is equipped with a toilet bottom flushing head as described in any one of claims 1-9.

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