Flushing nozzle, flushing device for closestool and intelligent closestool

Abstract

The utility model discloses a flushing nozzle, a flushing device for a closestool and an intelligent closestool, and the flushing nozzle comprises a nozzle main body which is provided with a water passing cavity and at least one water spraying hole communicated with the water passing cavity; the descaling assembly comprises a movable part, a reset spring, a sealing plug and a descaling needle, the movable part is movably connected to the nozzle body, the sealing plug is arranged to be a hole, facing the movable part and communicated with the water spraying hole, of the nozzle body, and the descaling needle is installed on the movable part and arranged to be an insertion hole capable of being inserted into the corresponding sealing plug; the reset spring is located between the nozzle body and the movable part and arranged around one of the sealing plugs. The movable part drives the descaling needle to enter the water spraying hole when moving towards the nozzle body to the first position under the action of external force, and the movable part drives the descaling needle to exit the water spraying hole when being released by the external force and moving away from the nozzle body to the second position under the action of the reset spring. According to the scheme, the installation space of the descaling assembly can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bathrooms, and more specifically, to a flushing nozzle, a flushing device for a toilet and an intelligent toilet. Background Art

[0002] Nowadays, the electronic cover of a smart toilet will easily form scale after being heated. As scale continues to form during the use of the smart toilet, it will easily cause the water spray hole of the nozzle to become blocked, thereby causing the cleaning function of the smart cover to fail.

[0003] In order to solve this problem, the prior art has developed a flushing nozzle with a descaling function, that is, a descaling component is provided on the flushing nozzle, and descaling is performed through the descaling component. However, the spatial volume of the current flushing nozzle is small, and the descaling component has the problem of occupying too much space on the flushing nozzle, resulting in an inability to provide a plurality of water spray holes with different functions on the flushing nozzle. Utility Model Content

[0004] The embodiments of the utility model provide a flushing nozzle, a flushing device for a toilet and an intelligent toilet, so as to solve the problem that the current descaling component occupies too much space on the flushing nozzle.

[0005] An embodiment of the present application provides a flushing nozzle, comprising:

[0006] The nozzle body is provided with a water passage cavity and at least one water spray hole connected with the water passage cavity, and the water entering the water passage cavity can be sprayed out from the water spray hole;

[0007] A descaling assembly, comprising a movable part, a return spring, and a sealing plug and a descaling needle arranged corresponding to each of the water spray holes, wherein the movable part is movably connected to the nozzle body, the sealing plug is arranged to seal an opening of the nozzle body that faces the movable part and is connected to the water spray hole, the descaling needle is installed on the movable part and is arranged to be inserted into a plug hole arranged on the corresponding sealing plug, and can enter and exit the water spray hole under the drive of the movable part, and the return spring is located between the nozzle body and the movable part, and is arranged around one of the sealing plugs;

[0008] When the movable part moves to a first position toward the nozzle body under the action of an external force, the descaling needle can be driven to enter the water spray hole; when the movable part is released by the external force and moves away from the nozzle body to a second position under the action of the return spring, the descaling needle can be driven to exit the water spray hole.

[0009] In one embodiment, for the sealing plug surrounded by the return spring, an annular groove surrounding the sealing plug is provided on at least one of the movable part and the nozzle body, an end of the return spring is installed in the annular groove, and the end of the return spring is confined in the annular groove.

[0010] In one embodiment, a side wall of the annular groove where the end of the return spring is located is provided with a plurality of limiting protrusions for limiting the end of the return spring in the annular groove.

[0011] In one embodiment, one end of the sealing plug is limited to a mounting groove installed on the movable part.

[0012] In one embodiment, an annular recess extending in the circumferential direction is provided on the outer circumferential surface of the sealing plug, the movable member is provided with a mounting groove for mounting the sealing plug, an annular protrusion cooperating with the annular recess is provided in the mounting groove, and the sealing plug is prevented from falling out of the mounting groove by the annular protrusion being embedded in the annular recess; and / or,

[0013] An annular groove is formed on an end surface of the sealing plug away from the movable member, and an outer side wall of the annular groove gradually expands in a direction away from the movable member and abuts against a side wall of the opening of the nozzle body.

[0014] In one embodiment, one end of the descaling needle installed on the movable part is bent to form a bent portion, and the bent portion is inserted into an undercut groove provided on the movable part.

[0015] In one embodiment, the nozzle body is provided with a plurality of water spray holes arranged in a straight line, wherein the bending portions of the descaling needles corresponding to two adjacent water spray holes are deviated from the arrangement direction of the plurality of water spray holes, and the bending portions of the adjacent descaling needles are located between adjacent water spray holes.

[0016] In one embodiment, there are three water spray holes, wherein the bending portions of the descaling needles corresponding to two adjacent water spray holes are parallel to each other and both deviate from the arrangement direction of the water spray holes, and the bending portion of the descaling needle corresponding to the other water spray hole is consistent with the arrangement direction of the water spray holes.

[0017] In one embodiment, a slot and a limiting structure are provided on the nozzle body, one end of the movable part is inserted into the slot, and the movable part is configured to swing back and forth between a first position and a second position around the end inserted into the slot, and the limiting structure is configured to limit the swing amplitude of the movable part and can prevent the movable part from detaching from the slot.

[0018] In one embodiment, a guide column is provided on one of the movable part and the nozzle body, and a guide groove cooperating with the guide column is provided on the other, and the movable part is guided by the cooperation between the guide column and the guide groove during the swinging process.

[0019] An embodiment of the present application also provides a flushing device for a toilet, the flushing device comprising a mounting body, a telescopic rod telescopically mounted on the mounting body, and the flushing nozzle as described above, wherein the flushing nozzle is mounted on the front end of the telescopic rod; wherein when the telescopic rod is retracted to the mounting body, the movable part presses against the mounting body; and when the telescopic rod is extended out of the mounting body, the movable part is released by a return spring.

[0020] When the telescopic rod is retracted, the movable part is pushed by the mounting body and moves to the first position. When the telescopic rod is extended, the movable part is separated from the mounting body and moves to the second position under the elastic force of the return spring.

[0021] An embodiment of the present application also provides a toilet, comprising the flushing device as described above.

[0022] The flushing nozzle provided by the embodiment of the present application can, when not spraying water, move the movable part to the first position under the action of external force to drive the descaling needle into the water spray hole, so as to achieve descaling of the water spray hole. When water spraying is required, the movable part moves to the second position under the action of elastic force to drive the descaling needle out of the water spray hole, so that the water spray hole can spray water. The flushing nozzle can be used for a flushing device of a toilet, and the flushing nozzle is installed on a telescopic rod of the flushing device. When the telescopic rod is retracted, the movable part can move to the first position under the action of the jacking force of the mounting body on which the telescopic rod is installed. When the telescopic rod is extended to make the flushing nozzle spray water, the movable part is separated from the jacking force of the mounting body and moves to the second position under the action of the elastic force of the return spring.

[0023] The technical solution provided by the embodiments of the present application can realize the descaling function of the flushing nozzle, and because the return spring is arranged on one of the sealing plugs, compared with the method of arranging the return spring at other positions between the water spray body and the movable part, the installation of the return spring saves space, thereby helping to reduce the space occupied by the descaling component, and more water spray holes can be set when using the same size of flushing nozzle.

[0024] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0026] Figure 1 A schematic diagram of the structure of a flushing nozzle according to an embodiment of the present application;

[0027] Figure 2 for Figure 1 The schematic diagram of the structure of the flushing nozzle shown is viewed from one side;

[0028] Figure 3 for Figure 1 The schematic diagram of the structure of the flushing nozzle shown is in a disassembled state;

[0029] Figure 4 is a schematic diagram of a cross-sectional structure of a flushing nozzle according to an embodiment of the present application, wherein the movable part is in the second position;

[0030] Figure 5 is a schematic diagram of a cross-sectional structure of a flushing nozzle according to an embodiment of the present application, wherein the movable part is in a first position;

[0031] Figure 6 The state of the flushing nozzle in a water spraying state according to one embodiment of the present application is shown;

[0032] Figure 7 This is a schematic diagram of a structure in which a sealing plug and a return spring are installed on a movable part according to an embodiment of the present application;

[0033] Figure 8 for Figure 7 A schematic diagram of the structure in an exploded state;

[0034] Fig. 9 for Figure 7 The structure shown is a schematic diagram of the structure viewed from one side;

[0035] Fig.10 This is a schematic diagram of the structure of a sealing plug according to an embodiment of the present application;

[0036] Fig.11 for Fig.10 A schematic diagram of the cross-sectional structure of the sealing plug shown;

[0037] Fig.12 It is a structural schematic diagram of an annular positioning groove provided on the nozzle body according to an embodiment of the present application;

[0038] Fig.13is a schematic structural diagram of a telescopic rod of a flushing device in a retracted state according to an embodiment of the present application;

[0039] Fig.14 It is a schematic structural diagram of a telescopic rod of a flushing device in an extended state according to an embodiment of the present application.

[0040] Description of reference numerals:

[0041] 1-nozzle body; 11-nozzle body; 12-nozzle lower cover; 13-nozzle upper cover; 101-water inlet hole; 102-water passage chamber; 103-water spray hole; 1031-water outlet; 104-slot; 105-limiting structure; 106-opening; 107-annular positioning groove; 108-limiting protrusion; 2-movable part; 201-insertion part; 202-guide column; 203-installation groove; 204-undercut groove; 205-limiting matching part; 3-descaler needle; 3a-first descaler needle; 3b-second descaler needle; 3c-third descaler needle; 301-bending part; 4-sealing plug; 401-insert hole; 402-annular groove; 403-outer wall; 404-annular recess; 5-reset spring; 100-flushing nozzle; 200-telescopic rod; 300-installation body. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the utility model more clear, the embodiments of the utility model will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0043] The embodiment of the present application provides a flushing nozzle, such as Figure 1-Figure 6 In the illustrated embodiment, the flushing nozzle 100 comprises: a nozzle body 1 and a descaling assembly; wherein,

[0044] The nozzle body 1 is provided with a water passage cavity 102 and at least one water spray hole 103 connected to the water passage cavity 102, and the water entering the water passage cavity 102 can be sprayed out from the water spray hole 103;

[0045] The descaling assembly comprises a movable part 2, a return spring 5, and a sealing plug 4 and a descaling needle 3 provided corresponding to each water spray hole 103. The movable part 2 is movably connected to the nozzle body 1. The sealing plug 4 is provided to seal the opening 106 of the nozzle body 1 facing the movable part 2 and communicating with the water spray hole 103. The descaling needle 3 is installed on the movable part 2 and is provided to be inserted into the insertion hole 401 provided on the corresponding sealing plug 4, and can enter and exit the water spray hole 103 under the drive of the movable part 2. The return spring 5 is located between the nozzle body 1 and the movable part 2, and is provided around one of the sealing plugs 4.

[0046] When the movable part 2 moves to the first position relative to the nozzle body 1 under the action of external force, it can drive the descaling needle 3 to enter the water spray hole 103. When the movable part 2 is released by the external force and moves to the second position under the action of the return spring 5, it can drive the descaling needle 3 to exit the water spray hole 103. Figure 5 The movable part 2 is shown in the first position. In the first position, the descaling needle 3 extends into the water spray hole 103. Figure 4 The movable member 2 is shown in the second position. Figure 6 It shows the state where the movable member 2 is in the second position and the water in the water passage chamber 102 enters the water spray hole 102 and sprays out.

[0047] The flushing nozzle provided in the embodiment of the present application, when not spraying water, the movable part 2 can be moved to the first position under the action of external force to drive the descaling needle to enter the water spray hole, and can achieve descaling of the water spray hole 103. When water spraying is required, the movable part 2 moves to the second position under the action of elastic force to drive the descaling needle 2 to exit the water spray hole 103, so that the water spray hole 103 can spray water. The flushing nozzle can be used for a flushing device of a toilet, and the flushing nozzle is installed on the telescopic rod of the flushing device. When the telescopic rod is retracted, the movable part 2 can move to the first position under the jacking force of the mounting body on which the telescopic rod is installed, and when the telescopic rod is extended to make the flushing nozzle spray water, the movable part 2 is separated from the jacking action of the mounting body and moves to the second position under the elastic force of the reset spring 5.

[0048] The technical solution provided by the embodiment of the present application can realize the descaling function of the flushing nozzle, and the reset spring 5 is sleeved on one of the sealing plugs 4. Compared with the method of setting the reset spring 5 at other positions between the water spraying body 1 and the movable part 2, the installation of the reset spring 5 saves more space, thereby helping to reduce the space occupied by the descaling component, and more water spray holes 103 can be set when the flushing nozzle of the same size is used. For example, Figure 1-Figure 6 In the illustrated embodiment, three water spray holes 103 are provided, and all three water spray holes 103 have a descaling function. The structural design of the three water spray holes 103 with a descaling function is completed within a limited space.

[0049] In one embodiment, Figure 3-5 As shown, in order to facilitate the manufacture of the internal structure of the nozzle body 1, the nozzle body 1 is configured to include a nozzle body 11 and a nozzle lower cover 12 arranged on a side of the nozzle body 11 close to the movable part 2, and a water spray hole 103 is arranged on the nozzle body 11, and a water passage cavity 102 is formed between the nozzle body 11 and the nozzle lower cover 12, and the water passage cavity 102 is connected with the water spray hole 103. A water inlet hole 101 is also arranged on the nozzle body 11, and water entering from the water inlet hole 101 flows into the water passage cavity 102, and then can be sprayed out from the water spray hole 103.

[0050] In this example, the opening 106 disposed on the nozzle body 1 and facing the movable part 2 and communicating with the water spray hole 11 is disposed on the nozzle lower cover 12, and the sealing plug 4 is configured to be inserted into the opening 106 of the nozzle lower cover 12 for sealing. In this way, the water in the water passage cavity 102 between the nozzle body 11 and the nozzle lower cover 12 will not flow out through the opening 106 of the nozzle lower cover 12.

[0051] A nozzle upper cover 13 is provided on the side of the nozzle body 11 away from the nozzle lower cover 12. The nozzle upper cover 13 is provided with a water outlet 1031 of at least one water spray hole 103. By providing the nozzle upper cover 13, the water outlet 1031 can be easily configured to achieve different water spraying forms for each water spray hole 103. Figure 2-Figure 5 In the example shown, three water spray holes 103 are arranged on the nozzle body 1, wherein two water outlet ends 1031 of the three water spray holes 103 are arranged on the nozzle upper cover 13, and the other water outlet end 1031 is arranged on the nozzle body 11. The water spray form of the water outlet end 1031 on the nozzle upper cover 13 is different from the water spray form of the water outlet end 1031 on the nozzle body 11, so that the water spray holes 103 with different water spray forms can be suitable for flushing different parts.

[0052] In one embodiment, a slot 104 and a limiting structure 105 are provided on the nozzle body 1, one end of the movable part 2 is inserted into the slot 104, and the movable part 2 is configured to swing back and forth between a first position and a second position around the end inserted into the slot 104, and the limiting structure 105 is configured to limit the swing amplitude of the movable part 2 and can prevent the movable part 2 from escaping from the slot 104.

[0053] As shown in the example 1 (combined Figure 3 and Figure 4 ), a slot 104 is provided on the nozzle body 11, an insertion portion 201 which can be inserted into the slot 104 is formed at one end of the movable member 2, the insertion portion 201 of the movable member 2 is inserted into the slot 104 and can swing back and forth between the first position and the second position around the insertion portion 201. Among them, a limiting structure 105 (which can be provided on the nozzle body 11 or on the nozzle lower cover 12) is provided on the nozzle body 1, the limiting structure 105 is provided with a limiting hole, and a limiting matching portion 205 (reference Figure 7 and Figure 8 As shown in the figure, the limiting fitting part 205 is located in the limiting hole of the limiting structure 105, and when the movable part 2 swings between the first position and the second position, the limiting fitting part 205 moves back and forth in the space limited by the limiting hole, thereby limiting the swing range of the movable part 2 through the cooperation between the limiting fitting part 205 and the limiting hole, and preventing the movable part 2 from escaping from the slot 104 through the cooperation between the limiting fitting part 205 and the limiting hole.

[0054] In order to guide the swing of the movable part 2 toward and away from the nozzle body 1, a guide post 202 is provided on one of the movable part 2 and the nozzle body 1, and a guide groove cooperating with the guide post 202 is provided on the other. The movable part 2 is guided by the cooperation between the guide post 201 and the guide groove during the swinging process. Figure 7 and Figure 8 In the example shown, the guide body 202 is arranged on the movable member 2 .

[0055] refer to Figure 4-Figure 7 In the example, three water spray holes 103 are arranged in a straight line, three sealing plugs 4 and corresponding descaling needles 3 are also respectively provided, and the reset spring 5 is installed on the sealing plug 4 in the middle position, so that the reset spring 5 will not occupy the space outside the sealing plugs 4 at both ends, which is more conducive to saving space, and the sealing plug 4 in the middle position can make the reset spring 5 suitable for the rotation torque L of the movable part 2, so that the movable part 2 can be reset to the second position when the required elastic force of the reset spring 5 is small. The way that the reset spring 5 is sleeved on the sealing plug 4 can save space and allow three water spray holes 103 to be provided. Usually, the flushing nozzle of the flushing device of the toilet can only be provided with two water spray holes 103 that can descaling.

[0056] To install the sealing plug 4 , the movable part 2 is provided with a mounting groove 203 corresponding to each sealing plug 4 , one end of the sealing plug 4 is limited in the mounting groove 203 of the movable part 2 , and the other end is inserted into the opening 106 of the nozzle body 1 .

[0057] In an example, Fig.10 and Fig.11 As shown, the outer circumferential surface of the sealing plug 4 is provided with an annular recess 404 extending in the circumferential direction, and the movable member 2 is provided with a mounting groove 203 (refer to Figure 8 ), an annular convex portion cooperating with the annular recess 404 is provided in the mounting groove 203, and after the sealing plug 4 is inserted into the mounting groove 203, the annular convex portion is embedded in the annular recess 404 to prevent the sealing plug 4 from escaping from the mounting groove 203. By setting the sealing plug 4 to be limited in the mounting groove 203, the problem that the sealing plug 4 is unstable during the back-and-forth swinging of the movable part 2 and is easy to detach from the space between the movable part 2 and the nozzle body 1 can be solved.

[0058] In order to achieve the sealing of the opening 106 of the nozzle body 1 by the sealing plug 4, an annular groove 402 surrounding the insertion hole 401 of the descaling needle 3 is formed on the end surface of the sealing plug 4 away from the movable part 2, and the outer side wall 403 of the annular groove 402 gradually expands in the direction away from the movable part 2 and abuts against the side wall of the opening 106 of the nozzle body 1. In this way, when the water in the water passage chamber 102 pushes the sealing plug 4, the water in the annular groove 402 pushes the outer side wall 403 of the annular groove 402, and the outer side wall 403 tightly abuts against the side wall of the opening 106 of the nozzle body 1 to be sealed to achieve sealing.

[0059] In one embodiment, for the sealing plug 4 surrounded by the return spring 5, at least one of the movable part 2 and the nozzle body 1 is provided with an annular positioning groove 107, the annular positioning groove 107 surrounds the insertion hole 401 of the sealing plug 4 for inserting the descaling needle 3, the end of the return spring 5 arranged around the sealing plug 5 is installed in the annular positioning groove 107, and at least one end of the return spring 5 is limited in the annular positioning groove 107. In this way, when the movable part 2 moves relative to the nozzle body 1, the return spring 5 can be stably compressed and released between the movable part 2 and the nozzle body 1, and the problem of the return spring 5 being squeezed with the sealing plug 4 due to the unstable position, thereby damaging the sealing plug 4, can be avoided.

[0060] In order to limit the end of the return spring 5 in the annular positioning groove 107, the side wall of the annular groove 106 where the end of the return spring 5 is located is provided with a plurality of limiting protrusions 108, which are used to limit the end of the return spring 5 in the annular positioning groove 107. The limiting protrusions 108 can be arranged on the radially inner side wall of the annular positioning groove 107, or can be arranged on the radially outer side wall of the annular positioning groove 107, as long as the limiting protrusions 108 can cooperate with the return spring 5 to play the role of fixing the return spring 5 in the annular positioning groove 107, of course, other methods can also be used to limit the end of the return spring 5.

[0061] like Fig.12 In the example shown, an annular positioning groove 107 surrounding the sealing plug 4 is provided on the nozzle lower cover 12 of the nozzle body 1. Fig.12 The sealing plug 4 is not shown in the figure, and the annular positioning groove 107 is shown to be arranged around the opening 106 for installing the sealing plug 4. It can be understood that the annular positioning groove 107 can also be arranged on the movable part 2.

[0062] In one embodiment, one end of the descaling needle 3 mounted on the movable part 2 is bent to form a bent portion 301, and the bent portion 301 is inserted into the undercut groove 204 provided on the movable part 2 for fixation. Figure 8 .

[0063] In one example, the nozzle body 1 is provided with a plurality of water spray holes 103 arranged in a straight line, wherein the bent portions 301 of the descaling needles 3 corresponding to two adjacent water spray holes 103 are both deviated from the arrangement direction of the plurality of water spray holes 103, and the bent portions 301 of the adjacent descaling needles 3 are both located between the adjacent water spray holes 103. By setting the bent portions 301 of the descaling needles 3 to deviate from the arrangement direction of the plurality of water spray holes 103, the spacing between the water spray holes 103 can be reduced, so that more water spray holes 103 can be provided.

[0064] Figure 1-Figure 6 In the example shown, three water spray holes 103 are provided, wherein the bent portions 301 of the descaling needles 3 corresponding to two adjacent water spray holes 103 are parallel to each other and deviate from the arrangement direction of the water spray holes 103, and the bent portion 301 of the descaling needle 3 corresponding to the other water spray hole 103 is consistent with the arrangement direction of the water spray holes 103. In this example, the arrangement direction of the water spray holes 103 is also the extension direction of the central axis M of the movable part 2. When the flushing nozzle is used in a flushing device for a toilet, the extension direction of the central axis M of the movable part 2 is also the extension direction of the telescopic rod.

[0065] like Fig. 9 As shown, the descaling needles 3 respectively arranged corresponding to the three water spray holes 103 are the first descaling needle 3a, the second descaling needle 3b and the third descaling needle 3c. The bending parts 301 of the adjacent first descaling needle 3a and the second descaling needle 3b are both deviated from the extension direction of the central axis M of the movable part 2. The angle between the bending part 301 of the first descaling needle 3a and the central axis M is A, and the angle between the second descaling needle 3b and the central axis M is B. The angle A and the angle B can be equal, that is, the bending parts 301 of the first descaling needle 3a and the second descaling needle 3b are roughly parallel. The bending part 301 of the third descaling needle 3c is in the same direction as the central axis M. Of course, the bending part 301 of the third descaling needle 3c can also be arranged to deviate from the central axis M.

[0066] The embodiment of the present application also provides a flushing device for a toilet, such as Fig.13 and Fig.14As shown, the flushing device includes a mounting body 300, a telescopic rod 200 telescopically mounted on the mounting body 300, and a flushing nozzle 100 as described above, wherein the flushing nozzle 100 is mounted at the front end of the telescopic rod 200; when the telescopic rod 200 is retracted to the mounting body 300, the movable part 2 presses against the mounting body 300; when the telescopic rod 200 is extended from the mounting body 300, the movable part 2 is released by the return spring 5. When the telescopic rod 200 is retracted, the movable part 2 is pushed by the mounting body 300 and moves to the first position (the mounting body 300 is provided with a structure for pushing the movable part 2); when the telescopic rod 200 is extended, the movable part 2 is separated from the push of the mounting body 1 and moves to the second position under the elastic force of the return spring 5. Fig.13 The telescopic rod 200 is shown in a retracted state. Fig.14 The telescopic rod 200 is shown in a state of being extended.

[0067] An embodiment of the present application also provides a smart toilet, comprising the flushing device as described above.

[0068] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "'mouth'-shaped structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the 'present' utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0069] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0070] Although the implementation methods disclosed in the utility model are as above, the above contents are only implementation methods adopted to facilitate the understanding of the utility model, and are not used to limit the utility model. Any technician in the field to which the utility model belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the utility model, but the scope of patent protection of the utility model shall still be defined by the attached claims.

Claims

1. A flushing nozzle, characterized in that: include: The nozzle body is provided with a water passage cavity and at least one water spray hole connected with the water passage cavity, and the water entering the water passage cavity can be sprayed out from the water spray hole; A descaling assembly, comprising a movable part, a return spring, and a sealing plug and a descaling needle arranged corresponding to each of the water spray holes, wherein the movable part is movably connected to the nozzle body, the sealing plug is arranged to seal an opening of the nozzle body that faces the movable part and is connected to the water spray hole, the descaling needle is installed on the movable part and is arranged to be inserted into a plug hole arranged on the corresponding sealing plug, and can enter and exit the water spray hole under the drive of the movable part, and the return spring is located between the nozzle body and the movable part, and is arranged around one of the sealing plugs; When the movable part moves to a first position toward the nozzle body under the action of an external force, the descaling needle can be driven to enter the water spray hole; when the movable part is released by the external force and moves away from the nozzle body to a second position under the action of the return spring, the descaling needle can be driven to exit the water spray hole.

2. The flushing nozzle according to claim 1, characterized in that For the sealing plug surrounded by the return spring, at least one of the movable part and the nozzle body is provided with an annular groove surrounding the sealing plug, the end of the return spring is installed in the annular groove, and the end of the return spring is confined in the annular groove.

3. The flushing nozzle according to claim 2, characterized in that The side wall of the annular groove where the end of the return spring is located is provided with a plurality of limiting protrusions for limiting the end of the return spring in the annular groove.

4. The flushing nozzle according to claim 1, characterized in that One end of the sealing plug is limited in a mounting groove installed on the movable part.

5. The flushing nozzle according to claim 4, characterized in that The outer circumferential surface of the sealing plug is provided with an annular recess extending in the circumferential direction, the movable member is provided with a mounting groove for mounting the sealing plug, the mounting groove is provided with an annular protrusion matching with the annular recess, and the annular protrusion is embedded in the annular recess to prevent the sealing plug from falling out of the mounting groove; and / or, An annular groove is formed on an end surface of the sealing plug away from the movable member, and an outer side wall of the annular groove gradually expands in a direction away from the movable member and abuts against a side wall of the opening of the nozzle body.

6. The flushing nozzle according to claim 1, characterized in that One end of the descaling needle installed on the movable part is bent to form a bent portion, and the bent portion is inserted into an undercut groove provided on the movable part.

7. The flushing nozzle according to claim 6, characterized in that The nozzle body is provided with a plurality of water spray holes arranged in a straight line, wherein the bending portions of the descaling needles corresponding to two adjacent water spray holes are both deviated from the arrangement direction of the plurality of water spray holes, and the bending portions of the adjacent descaling needles are both located between adjacent water spray holes.

8. The flushing nozzle according to claim 7, characterized in that There are three water spray holes, wherein the bending parts of the descaling needles corresponding to two adjacent water spray holes are parallel to each other and both deviate from the arrangement direction of the water spray holes, and the bending part of the descaling needle corresponding to the other water spray hole is consistent with the arrangement direction of the water spray holes.

9. The flushing nozzle according to any one of claims 1 to 8, characterized in that A slot and a limiting structure are provided on the nozzle body, one end of the movable part is inserted into the slot, and the movable part is configured to swing back and forth between a first position and a second position around the end inserted into the slot, and the limiting structure is configured to limit the swing amplitude of the movable part and can prevent the movable part from escaping from the slot.

10. The flushing nozzle according to claim 9, characterized in that A guide column is arranged on one of the movable part and the nozzle body, and a guide groove matched with the guide column is arranged on the other. The movable part is guided by the cooperation between the guide column and the guide groove during the swinging process.

11. A flushing device for a toilet, characterized in that: The flushing device includes a mounting body, a telescopic rod telescopically mounted on the mounting body, and a flushing nozzle according to any one of claims 1-10, wherein the flushing nozzle is mounted at the front end position of the telescopic rod; wherein when the telescopic rod is retracted to the mounting body, the movable part presses against the mounting body; and when the telescopic rod is extended out of the mounting body, the movable part is released by a reset spring.

12. A smart toilet, characterized in that: Comprising a flushing device according to claim 11.

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