A dental flosser with easily replaceable nozzle

Abstract

The utility model discloses a water flosser with an easily replaceable nozzle, comprising a main body with a water outlet chamber, wherein a restricted ejection tube and a second spring are arranged in the water outlet chamber, the ejection tube is plug-in-matched with the nozzle, the nozzle can extend out of the main body or be retracted into the main body, and the water outlet chamber can be connected with the nozzle via the ejection tube; a switch button is also arranged on the main body, and when the nozzle and the ejection tube are retracted into the main body, the switch button can restrict the nozzle and the ejection tube from bouncing up under the action of the second spring; a connecting piece is arranged between the nozzle and the ejection tube, and the connecting piece can realize that the nozzle and the ejection tube are not easily separated, and the nozzle can be quickly stored and used, and the nozzle is also conveniently replaced.

Description

Technical Field

[0001] The utility model relates to a dental flosser with an easily replaceable nozzle. Background Art

[0002] Currently, many toothbrushes on the market have external nozzles, which are exposed when not in use. In this way, the nozzles are easily contaminated by dust, affecting the hygiene of their use. Therefore, in order to ensure the hygiene of the nozzles, most toothbrushes now hide the nozzles in the storage cavity of the outer shell. When in use, the nozzles are taken out and installed at the water outlet. After use, the nozzles are removed and put back into the storage cavity. The nozzles need to be disassembled and assembled each time they are used, which is cumbersome. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a water flosser with an easily replaceable nozzle.

[0004] The utility model is realized by the following technical solutions:

[0005] A water flosser with an easily replaceable nozzle comprises a main body with a water outlet cavity, wherein a restricted ejection tube and a second spring are arranged in the water outlet cavity, the ejection tube is plug-in-matched with the nozzle, the nozzle can extend out of the main body or be retracted into the main body, and the water outlet cavity can be connected with the nozzle via the ejection tube; a switch button is also arranged on the main body, and when the nozzle and the ejection tube are retracted into the main body, the switch button can restrict the nozzle and the ejection tube from bouncing up under the action of the second spring; a connecting piece is arranged between the nozzle and the ejection tube, and the connecting piece can ensure that the nozzle and the ejection tube are not easily separated.

[0006] In the embodiment of the utility model, the connecting member is a sealing ring sleeved on the outer periphery of the ejection tube, the outer peripheral side of the sealing ring can fit tightly with the inner peripheral wall of the nozzle, and the sealing ring can realize synchronous movement of the nozzle and the ejection tube.

[0007] In an embodiment of the utility model, a matching installation space and an opening are also provided in the body, the installation space is located above the water outlet cavity, and a sealing gasket is provided between the outer periphery of the ejection tube and the water outlet cavity; the nozzle can extend out of the body through the opening, one end of the switch button is located on the outer peripheral wall of the body, and the other end of the switch button can be located in the installation space, the switch button includes a first rib, and a clamping portion is provided on the outer periphery of the nozzle; the first rib can be connected in cooperation with the clamping portion to restrict the nozzle and the ejection tube within the body.

[0008] In an embodiment of the utility model, a first groove is provided on the outer periphery of the ejection tube, the first groove can be located in the installation space, and the first rib can be snap-fitted with the first groove.

[0009] In an embodiment of the utility model, a first spring is arranged between the switch button and the body, and the first spring can move the first rib toward the nozzle, and pressing the switch button can move the first rib away from the nozzle.

[0010] In an embodiment of the utility model, a second groove is provided on the outer periphery of the nozzle, the second groove can be located in the installation space, the second groove is located above the first groove, the switch button also includes a second rib, the second rib is located above the first rib, and the second rib can be snap-fitted with the second groove.

[0011] In the embodiment of the utility model, a boss is arranged between the water outlet cavity and the installation space, and a step surface capable of abutting and cooperating with the boss is arranged at the upper end of the ejection tube.

[0012] In an embodiment of the utility model, the button includes a connecting piece, a through hole is provided in the middle of the connecting piece, and the nozzle can be located in the through hole.

[0013] In the embodiment of the utility model, the first rib and the second rib are arranged at one end of the connecting piece away from the first spring, and the first spring is arranged below or above the connecting piece.

[0014] In the embodiment of the utility model, a dust cover is further provided on the body, the dust cover is rotatably connected to the body, and the dust cover can cover the opening.

[0015] The utility model discloses a water flosser with an easily replaceable nozzle, which has the following beneficial effects: the nozzle is replaceable, and the replacement position will not be exposed on the appearance surface, so the overall appearance is good; at the same time, the nozzle adopts a push-type hidden design, and when it is not in use, the nozzle is retracted into the body. When it is needed, the nozzle can be automatically popped out for use by the consumer by pressing the switch button once. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the switch button in the utility model.

[0018] Figure 2 It is a schematic diagram of the nozzle contraction state in the utility model.

[0019] Figure 3 yes Figure 2 A magnified schematic diagram of center A.

[0020] Figure 4 It is a schematic diagram of the nozzle extending state in the utility model.

[0021] Figure 5 yes Figure 4 A magnified schematic diagram of point B in the middle.

[0022] Figure 6 It is a schematic diagram of the cooperation between the nozzle and the ejection tube in the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" 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 invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] Referring to the drawings of the specification, a water flosser with an easily replaceable nozzle includes a main body 10 with a water outlet chamber 11. When the water flosser is working, water is ejected from the nozzle by the action of a pump. This is similar to the prior art and will not be elaborated on in detail herein. A restricted ejection tube 20 and a second spring 21 are provided in the water outlet chamber. The ejection tube can be ejected under the action of the second spring. At that time, part of the ejection tube will always be restricted in the main body (water outlet chamber). The ejection tube is plugged and matched with the nozzle 30. That is to say, when the nozzle needs to be replaced, it can be replaced by pulling the nozzle out of the ejection tube. The nozzle can extend out of the main body or retract into the main body. When in use, the nozzle is extended out of the main body. On the side, the water outlet chamber can be connected to the nozzle through the ejection tube; a switch button 40 is also provided on the body. When the nozzle and the ejection tube are retracted into the body, the switch button can limit the nozzle and the ejection tube from bouncing up under the action of the second spring, that is, the nozzle is limited in the body so that the nozzle will not be contaminated by dust; a connecting piece 50 is provided between the nozzle and the ejection tube, and the connecting piece can realize that the nozzle and the ejection tube are not easily separated; the connecting piece can be a sealing ring or a buckle and other structures, mainly can connect the nozzle and the ejection tube together, and can also separate the two under the condition of artificial force; a sealing ring 70 for stopping water is also provided between the nozzle and the ejection tube, and is located above the connecting piece.

[0029] Preferably, the connecting piece is a sealing ring sleeved on the outer periphery of the ejection tube, the outer peripheral side of the sealing ring can fit tightly with the inner peripheral wall of the nozzle, and the sealing ring can realize the synchronous movement of the nozzle and the ejection tube. Combined with the description: the connecting piece gives a pre-tightening force to the nozzle and the ejection tube, so that when the two are ejected, the ejection tube will be restricted (limited) and the nozzle will not be separated from the ejection tube; at the same time: if the ejection force is insufficient, the ejection tube can be pulled out of place synchronously with the nozzle by applying slight force manually, and then the nozzle can be replaced by applying force.

[0030] Furthermore, the body is also provided with a matching installation space 12 and an opening 13, the installation space is located above the water outlet cavity, and a sealing gasket 22 is provided between the outer periphery of the ejection tube and the water outlet cavity, so as to ensure that there is no water leakage; the nozzle can extend out of the body through the opening, one end of the switch button is located on the outer peripheral wall of the body, and the other end of the switch button can be located in the installation space, the switch button includes a first rib 41, and a clamping portion 31 is provided on the outer periphery of the nozzle; the first rib can be connected with the clamping portion to restrict the nozzle and the ejection tube in the body, and when the nozzle is stored, the first rib cooperates with the clamping portion to overcome the action of the second spring and restrict the nozzle in the body.

[0031] Furthermore, a first groove 23 is provided on the outer periphery of the ejection tube. When the nozzle is extended, the first groove can be located in the installation space, and the first rib can be engaged with the first groove, so that the ejection tube is fixed in the body. When there is no other force, the ejection tube cannot move because under the action of water pressure, there is no cooperation between the first rib and the first groove, and the ejection tube can move downward, and simultaneously bring the nozzle back into the body.

[0032] In order to better ensure the stability of the structure, a first spring 43 is arranged between the switch button and the main body. The first spring can move the first rib toward the nozzle. Pressing the switch button can move the first rib away from the nozzle for reset. In this way, the first rib can maintain the engagement with the snap-fit ​​portion and the first groove, so that the nozzle is confined in the main body and the ejection tube is immobilized after it is ejected (without external force).

[0033] Preferably, a second groove 32 is provided on the outer periphery of the nozzle, and the second groove can be located in the installation space, and the second groove is located above the first groove. The switch button also includes a second rib 42, and the second rib is located above the first rib. The second rib can be engaged with the second groove, and the first rib and the second rib can be engaged with the first groove and the second groove at the same time to fix the nozzle and the ejection tube respectively, so as to realize the state of the nozzle being extended. At this time, the switch button is pressed again to separate the second rib from the second groove. Only then can the nozzle be pulled out of the ejection tube for replacement.

[0034] In a preferred embodiment, the cross-section of the nozzle from top to bottom (opposite to the direction of water spraying) becomes larger. When the nozzle needs to be used, the switch button is pressed to release the first rib from the restraint of the clamping part and extend under the action of the second spring. The first spring resets the switch button, and the first rib or the second rib stares at the peripheral wall of the nozzle until it is clamped into the second groove or the second groove. There is only an inclined surface above the first rib and / or the second rib. Preferably, an inclined surface 44 is provided at the upper end of the second rib. When shrinking the nozzle, the nozzle is pressed. Under the action of the inclined surface, the switch button (first rib) moves as a whole until the first rib cooperates with the clamping part, the first spring is reset, and the shrinkage is completed.

[0035] Furthermore, a boss 14 is provided between the water outlet cavity and the installation space, and a step surface 24 capable of abutting and cooperating with the boss is provided at the upper end of the ejection tube. During use of the utility model, the first groove is located above the step surface, thus limiting the maximum rising position of the ejection tube.

[0036] Furthermore, the button includes a connecting piece 45, a through hole 46 is provided in the middle of the connecting piece, and the nozzle can be located in the through hole. The first rib and the second rib are arranged at one end of the connecting piece away from the first spring, and the first spring is arranged below or above the connecting piece.

[0037] In an embodiment of the utility model, a dust cover 60 is further provided on the body, and the dust cover is rotatably connected to the body, and the dust cover can cover the opening.

[0038] Specifically, the switch button has two ribs distributed up and down, the second rib cooperates with the second groove of the nozzle to form an undercut; the first rib cooperates with the first groove of the ejection tube to form an undercut. When the nozzle is pulled into place, the two ribs cooperate with the two grooves at the same time. When replacing the nozzle, press and hold the switch button, the two ribs separate from the two grooves, and the nozzle can be removed from the ejection tube. To install the nozzle, just press the nozzle in to install it in place.

[0039] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A water flosser with an easily replaceable nozzle, comprising a body with a water outlet cavity, characterized in that: The water outlet chamber is provided with a restricted ejection tube and a second spring, the ejection tube is plugged into the nozzle, the nozzle can extend out of the body or retract into the body, and the water outlet chamber can be connected with the nozzle through the ejection tube; a switch button is also provided on the body, when the nozzle and the ejection tube are retracted into the body, the switch button can restrict the nozzle and the ejection tube from bouncing up under the action of the second spring; a connecting piece is provided between the nozzle and the ejection tube, and the connecting piece can ensure that the nozzle and the ejection tube are not easily separated.

2. The water flosser with easily replaceable nozzle according to claim 1, characterized in that: The connecting piece is a sealing ring sleeved on the outer circumference of the ejection tube, the outer circumference of the sealing ring can be tightly matched with the inner circumference of the nozzle, and the sealing ring can realize synchronous movement of the nozzle and the ejection tube.

3. A water flosser with an easily replaceable nozzle according to any one of claims 1 or 2, characterized in that: The body is also provided with a matching installation space and an opening, the installation space is located above the water outlet cavity, and a sealing gasket is provided between the outer periphery of the ejection tube and the water outlet cavity; the nozzle can extend out of the body through the opening, one end of the switch button is located on the outer peripheral wall of the body, and the other end of the switch button can be located in the installation space, the switch button includes a first rib, and a clamping portion is provided on the outer periphery of the nozzle; the first rib can be matched and connected with the clamping portion to restrict the nozzle and the ejection tube in the body.

4. The water flosser with easily replaceable nozzle according to claim 3, characterized in that: A first groove is arranged on the outer periphery of the ejection tube. The first groove can be located in the installation space, and the first rib can be snap-fitted with the first groove.

5. The water flosser with easily replaceable nozzle according to claim 4, characterized in that: A first spring is arranged between the switch button and the body, and the first spring can move the first rib toward the nozzle direction. Pressing the switch button can move the first rib away from the nozzle.

6. A water flosser with an easily replaceable nozzle according to claim 4 or 5, characterized in that: A second groove is arranged on the outer periphery of the nozzle, and the second groove can be located in the installation space, and the second groove is located above the first groove. The switch button also includes a second rib, and the second rib is located above the first rib, and the second rib can be snap-fitted with the second groove.

7. The water flosser with easily replaceable nozzle according to claim 6, characterized in that: A boss is arranged between the water outlet cavity and the installation space, and a step surface capable of abutting and cooperating with the boss is arranged on the upper end of the ejection tube.

8. The water flosser with easily replaceable nozzle according to claim 7, characterized in that: The button comprises a connecting piece, a through hole is arranged in the middle of the connecting piece, and the nozzle can be located in the through hole.

9. The water flosser with easily replaceable nozzle according to claim 8, characterized in that: The first rib and the second rib are arranged at one end of the connecting piece away from the first spring, and the first spring is arranged below or above the connecting piece.

10. A water flosser with an easily replaceable nozzle according to any one of claims 4, 5, 7-9, characterized in that: The body is also provided with a dust cover, which is rotatably connected to the body and can cover the opening.

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