Telescopic nozzle and water floss

Abstract

The present invention relates to the field of nozzle technology, and in particular to a telescopic nozzle and water flosser. The telescopic nozzle comprises: a base, which is arranged through the length direction, and is respectively formed with a first large end and a first small end at both ends along the length direction; an intermediate sleeve, which is arranged through the length direction, and is respectively formed with a second large end and a second small end at both ends along the length direction, and the second large end is suitable for at least partially sleeved inside the first small end in the unfolded state; an end sleeve, which is respectively formed with a third large end and a bending portion at both ends along the length direction, and the third large end is suitable for at least partially sleeved inside the second small end in the unfolded state; and the bending portion is suitable for abutting against the first small end in the retracted state. The telescopic nozzle provided by the present invention enables the telescopic nozzle to be telescopic, is convenient for storage, reduces space occupancy, and improves portability; and ensures the assembly integrity of the telescopic nozzle to prevent the components from being separated from each other in the retracted state and causing scattering.

Description

Technical Field

[0001] The invention relates to the technical field of nozzles, and in particular to a telescopic nozzle and a water flosser. Background Art

[0002] Water floss is an auxiliary tool for cleaning the oral cavity. In addition to making people uncomfortable and carrying bacteria, the more harmful thing about food debris stuck in the gaps between teeth is that it provides nutrients to dental plaque. If not removed in time, dental plaque can easily calcify and become "tartar" that accumulates at the root of the tooth, compressing and irritating the periodontal environment and causing periodontal atrophy. The cleaning effect of water floss is mainly achieved by the impact force of a high-speed water column ejected under a certain pressure. However, the oral irrigators currently used are usually less portable, and the portable oral irrigators are longer because the water storage cylinder is connected to the main body of the oral irrigator. In particular, the slender nozzle on the water floss often increases the overall length by 25%-40%, making the storage of the whole machine a problem and inconvenient to access. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the water floss nozzle in the prior art that the length is too long, thereby providing a telescopic nozzle that can be easily adjusted in length.

[0004] Another technical problem to be solved by the present invention is to overcome the defect of the prior art that the water floss is inconvenient to store due to its length, thereby providing a water floss that is easy to store.

[0005] In order to solve the above technical problems, the present invention provides a telescopic nozzle, comprising:

[0006] The base is arranged through the longitudinal direction, and has a first large end and a first small end formed at two ends along the longitudinal direction respectively;

[0007] The middle sleeve is arranged through the length direction, and has a second large end and a second small end formed at two ends along the length direction, respectively, and the second large end is suitable for at least partially sleeved inside the first small end in the unfolded state;

[0008] The end sleeve has a third large end and a bending portion formed at both ends along the length direction, wherein the third large end is suitable for at least partially sleeved inside the second small end in the expanded state; and the bending portion is suitable for abutting against the first small end in the contracted state.

[0009] Furthermore, at least partial regions of the base, the middle sleeve and the end sleeve extend along the same axial direction.

[0010] Furthermore, the bending portion is arranged at an angle to an extension direction of the base and / or the intermediate sleeve.

[0011] Furthermore, the dimension relationship between the end sleeve and the base satisfies: L>R; wherein L is the minimum vertical distance between the tip of the bending portion and the wall of the end sleeve away from the bending portion, and R is the inner diameter of the first small end.

[0012] Furthermore, the intermediate sleeve includes at least two sleeves nested in sequence.

[0013] Furthermore, the outer wall of the second large end is suitable for sealingly fitting with the inner wall of the first small end in an expanded state.

[0014] Furthermore, the outer wall of the third large end is suitable for sealingly fitting with the inner wall of the second small end in the expanded state.

[0015] Furthermore, at least a portion of the outer surface of the base is provided with a gripping portion.

[0016] The water floss provided by the present invention comprises: a water floss body, and a telescopic nozzle as described above which is detachably connected to the water floss body.

[0017] Furthermore, the telescopic nozzle is provided with a mounting portion suitable for detachable connection with the water floss body.

[0018] The technical solution of the present invention has the following advantages:

[0019] 1. The telescopic nozzle provided by the present invention is configured to be telescopic by sequentially snapping the base, the middle sleeve, and the end sleeve together, so that the telescopic nozzle can be telescoped, which is convenient for storage, reduces space occupancy, and improves portability; and the bent portion can abut against the first small end in the retracted state, thereby ensuring the assembly integrity of the telescopic nozzle and preventing the components from separating from each other in the retracted state and causing scattering.

[0020] 2. The telescopic nozzle provided by the present invention, the middle sleeve may further include at least two sleeves nested in sequence, and by nesting a plurality of the middle sleeves in sequence, the telescopic nozzle can extend to a longer length in the expanded state; and by increasing the number of sections of the telescopic nozzle, the telescopic nozzle of the same length in the expanded state can have a shorter size in the retracted state, which is convenient for storage.

[0021] 3. In the telescopic nozzle provided by the present invention, the outer wall of the second large end is suitable for sealingly fitting with the inner wall of the first small end in the expanded state, and the outer wall of the third large end is suitable for sealingly fitting with the inner wall of the second small end in the expanded state, thereby ensuring the sealing of the telescopic nozzle in the expanded state, ensuring that the liquid medium flowing through the inside of the telescopic nozzle does not overflow from the joint, ensuring the sealing effect, and improving the user experience.

[0022] 4. The water flosser provided by the present invention can greatly reduce the height of the entire water flosser by using a telescopic nozzle, thereby improving portability, reducing space occupation, and facilitating storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional diagram of the telescopic nozzle of the present invention in an unfolded state;

[0025] Figure 2 It is a front view of the telescopic nozzle of the present invention in the unfolded state;

[0026] Figure 3 It is a cross-sectional schematic diagram of the telescopic nozzle of the present invention in an expanded state;

[0027] Figure 4 It is a front view of the telescopic nozzle of the present invention in a retracted state;

[0028] Figure 5 The cross-sectional view of the retractable nozzle of the present invention in the retracted state is shown in FIG. Figure 1 ;

[0029] Figure 6 The cross-sectional view of the retractable nozzle of the present invention in the retracted state is shown in FIG. Figure 2 ;

[0030] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0031] Figure 8 It is a top view of the telescopic nozzle of the present invention in the retracted state.

[0032] Description of reference numerals:

[0033] 1-end sleeve, 2-middle sleeve, 3-base, 4-bending portion, 5-installing portion, 6-first small end, 7-holding portion. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] Embodiment 1

[0039] Combination Figure 1-Figure 8 As shown, the telescopic nozzle provided in this embodiment includes:

[0040] The base 3 is arranged through along the length direction, and has a first large end and a first small end 6 formed at two ends along the length direction respectively;

[0041] The intermediate sleeve 2 is arranged through the longitudinal direction, and has a second large end and a second small end formed at two ends along the longitudinal direction, and the second large end is suitable for at least partially sleeved inside the first small end 6 in the unfolded state;

[0042] The end sleeve 1 has a third large end and a bending portion 4 formed at both ends along the length direction, wherein the third large end is adapted to be at least partially sleeved inside the second small end in the expanded state; and the bending portion 4 is adapted to abut against the first small end 6 in the contracted state.

[0043] Preferably, in this embodiment, at least partial areas of the base 3, the intermediate sleeve 2, and the end sleeve 1 are constructed as cylindrical hollow structures, wherein the inner diameter of the first large end of the base 3 is larger than the inner diameter of the first small end 6, and the inner diameter of the second large end of the intermediate sleeve 2 is larger than the inner diameter of the second small end.

[0044] Furthermore, in order to achieve that the second large end is at least partially sleeved inside the first small end 6 in the expanded state, the maximum value of the outer diameter of the second large end is smaller than the minimum value of the inner diameter of the first small end 6. Similarly, in order to achieve that the third large end is at least partially sleeved inside the second small end in the expanded state, the maximum value of the outer diameter of the third large end is smaller than the minimum value of the inner diameter of the second small end.

[0045] Preferably, the bending portion 4 is arranged on a side of the end sleeve 1 away from the third large end, and the bending portion 4 is arranged at an angle relative to the extension direction of the end sleeve 1, so that the end sleeve 1 can clamp the bending portion 4 on the first small end 6 in a retracted state without leaking from the first small end 6, thereby ensuring the assembly integrity of the telescopic nozzle and preventing the components from separating from each other in the retracted state and causing scattering.

[0046] The telescopic nozzle provided in this embodiment is configured to be telescopic by sequentially snapping together the base 3, the middle sleeve 2, and the end sleeve 1, so that the telescopic nozzle can be telescoped, which facilitates storage, reduces space occupancy, and improves portability; and the bent portion 4 can abut against the first small end 6 in the retracted state, thereby ensuring the assembly integrity of the telescopic nozzle and preventing the components from separating from each other in the retracted state and causing scattering.

[0047] Preferably, the end sleeve 1 penetrates inside, and a nozzle is formed at the end of the bending portion 4 away from the third large end. When the telescopic nozzle is in the expanded state, the liquid medium enters from the first large end and is finally ejected from the nozzle of the bending portion 4.

[0048] As a specific implementation form, during the assembly process of the telescopic nozzle, the middle sleeve 2 is first inserted from the first large end of the base 3, and then the end sleeve 1 is inserted from the first large end of the base 3, so that the base 3, the middle sleeve 2, and the end sleeve 1 are sequentially clamped, and then in the unfolded state, the end sleeve 1 is subjected to a heat bending process, so that one end of the third large end of the end sleeve 1 forms the bending portion 4. The telescopic nozzle provided in this embodiment has a simple structure and adopts a mature heat bending technology, which can achieve that the inner diameter does not change significantly after heat bending, does not affect the spraying of high-pressure water flow, and does not affect the cleaning effect.

[0049] Specifically, at least a portion of the base 3, the middle sleeve 2 and the end sleeve 1 extend along the same axial direction.

[0050] By extending the base 3, the middle sleeve 2 and at least part of the end sleeve 1 along the same axial direction, the telescopic nozzle is extended along the same axial direction as a whole in the expanded state, ensuring the straightness of the extension and facilitating expansion and contraction.

[0051] As a variation, the base 3, the intermediate sleeve 2 and at least a portion of the end sleeve 1 may also be arc-shaped structures of similar shape. By having similar shapes and being nested in sequence, it is convenient for the intermediate sleeve 2 to be expanded or contracted within the base 3, and it is convenient for at least a portion of the end sleeve 1 to be expanded or contracted within the intermediate sleeve 2.

[0052] Specifically, the bending portion 4 is arranged at an angle to the extension direction of the base 3 and / or the intermediate sleeve 2 .

[0053] By setting the bending portion 4 at an angle relative to the extension direction of the base 3 and / or the intermediate sleeve 2, the end sleeve 1 can clamp the bending portion 4 on the first small end 6 in the retracted state without leaking out from the first small end 6, thereby ensuring the assemblability of the telescopic nozzle and preventing the components from separating from each other and scattering in the retracted state.

[0054] Combination Figure 6 , Figure 7 As shown, specifically, the dimensional relationship between the end sleeve 1 and the base 3 satisfies: L>R; wherein L is the minimum vertical distance from the tip of the bending portion to the wall of the end sleeve 1 away from the bending portion, and R is the inner diameter of the first small end 6.

[0055] By forming the bending portion 4 on the side of the end sleeve 1 away from the third large end and making the minimum clamping size of the bending portion 4 larger than the inner diameter of the first small end 6, the bending portion 4 is prevented from sliding off the first small end 6 of the base 3 during the contraction process, thereby ensuring the assembly integrity of the telescopic nozzle.

[0056] In this embodiment, the intermediate sleeve 2 is a single sleeve.

[0057] As a variation, the intermediate sleeve 2 may also include at least two sleeves nested in sequence. By nesting a plurality of the intermediate sleeves 2 in sequence, the telescopic nozzle can extend a longer length in the unfolded state; and by increasing the number of sections of the telescopic nozzle, the telescopic nozzle of the same length in the unfolded state can have a shorter size in the retracted state, which is convenient for storage.

[0058] Specifically, the outer wall of the second large end is adapted to be sealed and fitted with the inner wall of the first small end 6 in the unfolded state, thereby ensuring the sealing of the telescopic nozzle in the unfolded state, ensuring that the liquid medium flowing through the inside of the telescopic nozzle does not overflow from the joint, ensuring the sealing effect, and improving the user experience.

[0059] As a variation, a sealing ring may be further provided at the corresponding position where the outer wall of the second large end contacts the inner wall of the first small end 6 , so as to improve the sealing degree between the intermediate sleeve 2 and the base 3 in the unfolded state.

[0060] Specifically, the outer wall of the third large end is adapted to be sealed and fitted with the inner wall of the second small end in the unfolded state, thereby ensuring the sealing of the telescopic nozzle in the unfolded state, ensuring that the liquid medium flowing through the inside of the telescopic nozzle does not overflow from the joint, ensuring the sealing effect, and improving the user experience.

[0061] As a variation, a sealing ring may be further provided at the corresponding position where the outer wall of the third large end contacts the inner wall of the second small end, so as to improve the sealing degree between the end sleeve 1 and the middle sleeve 2 in the unfolded state.

[0062] Preferably, a protrusion or a depression is provided on the outer wall of the second large end, and a depression or a protrusion is provided on the corresponding position of the inner wall of the first small end 6, so that the intermediate sleeve 2 and the base 3 can be connected with each other in the expanded state to maintain the expanded state, avoid shrinkage due to accidental contact, and improve the reliability of the expanded state.

[0063] Preferably, a protrusion or a recess is provided on the outer wall of the third large end, and a recess or a protrusion is provided on the corresponding position of the inner wall of the second small end, so as to facilitate the end sleeve 1 and the middle sleeve 2 to be able to engage with each other in the expanded state, maintain the expanded state, avoid shrinkage due to accidental contact, and improve the reliability of the expanded state.

[0064] Specifically, at least a portion of the outer surface of the base 3 is provided with a gripping portion 7, so as to facilitate gripping of the telescopic nozzle and further facilitate assembly of the telescopic nozzle with an external structure.

[0065] Embodiment 2

[0066] Combination Figure 1 As shown, this embodiment provides a water flosser, comprising: a water flosser body, and a telescopic nozzle as described above, which is detachably connected to the water flosser body.

[0067] The water flosser provided in this embodiment can greatly reduce the height of the entire water flosser by using a telescopic nozzle, thereby improving portability, reducing space occupation, and facilitating storage.

[0068] Preferably, in this embodiment, by using a telescopic nozzle, the height of the water flosser can be reduced by 20%-40%.

[0069] Preferably, at least a portion of the outer surface of the base 3 is provided with a gripping portion 7, so as to facilitate gripping of the telescopic nozzle and further facilitate assembly of the telescopic nozzle with the water floss body.

[0070] Specifically, the telescopic nozzle is provided with a mounting portion 5 suitable for detachably connecting with the water floss body.

[0071] Preferably, a groove is provided on the mounting portion 5, and a corresponding snap-in protrusion or a snap-in spring pin is provided on the water floss body, so as to facilitate quick insertion and installation of the telescopic nozzle onto the water floss body through the mounting portion 5.

[0072] As a variation, the mounting portion 5 may also be a threaded structure, and the water floss body may be provided with corresponding threads, so as to facilitate screwing and mounting the telescopic nozzle on the water floss body.

[0073] The water floss provided in this embodiment is detachably connected to the water floss body by providing a mounting portion 5, so that the telescopic nozzle can be easily adapted to different styles of water flosses, thereby improving the versatility of the accessory. The water floss adopts a telescopic nozzle, which makes the water floss more portable and smaller in size, reduces space occupancy, and is convenient for storage.

[0074] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A telescopic nozzle, characterized in that: include: The base (3) is arranged to penetrate along the length direction, and has a first large end and a first small end (6) formed at two ends along the length direction respectively; The intermediate sleeve (2) is arranged to penetrate along the length direction, and has a second large end and a second small end formed at two ends along the length direction, respectively, and the second large end is suitable for at least partially sleeved inside the first small end (6) in the unfolded state; The end sleeve (1) has a third large end and a bent portion (4) formed at both ends along the length direction, the third large end being adapted to at least partially sleeve the inside of the second small end in an expanded state; the bent portion (4) being adapted to abut against the first small end (6) in a contracted state; The outer wall of the second large end is adapted to be in sealing contact with the inner wall of the first small end (6) in the unfolded state; the outer wall of the third large end is adapted to be in sealing contact with the inner wall of the second small end in the unfolded state; The dimension relationship between the end sleeve (1) and the base (3) satisfies: L>R; wherein L is the minimum vertical distance between the tip of the bending portion and the wall of the end sleeve (1) away from the bending portion, and R is the inner diameter of the first small end (6).

2. The telescopic nozzle according to claim 1, characterized in that: At least part of the base (3), the middle sleeve (2) and the end sleeve (1) extend along the same axial direction.

3. The telescopic nozzle according to claim 2, characterized in that: The bent portion (4) is arranged at an angle to the extension direction of the base (3) and / or the intermediate sleeve (2).

4. The telescopic nozzle according to any one of claims 1 to 3, characterized in that: The intermediate sleeve (2) comprises at least two sleeves nested in sequence.

5. The telescopic nozzle according to any one of claims 1 to 3, characterized in that: At least a portion of the outer surface of the base (3) is provided with a gripping portion (7).

6. A water floss, characterized in that: It comprises a water floss body and a telescopic nozzle as described in any one of claims 1 to 5 above, which is detachably connected to the water floss body.

7. The water flosser according to claim 6, characterized in that: The telescopic nozzle is provided with a mounting portion (5) suitable for being detachably connected to the water floss body.

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