Rubber sealing ring and pull-out type oral irrigator shell

Abstract

The utility model discloses a rubber sealing ring and a drawing type oral irrigator shell. The sealing ring comprises a sealing ring clamping part and a sealing ring sealing part, the section shape of the sealing ring clamping part is the same as that of the sealing ring groove, the sealing ring sealing part is of a protruding structure outside the sealing ring clamping part, and the protruding structure is a round protrusion with the smooth surface. The drawing type oral irrigator shell comprises an outer shell and an inner shell; the inner shell is composed of an inner shell top and an inner shell inward-retracting part, and the inner shell inward-retracting part is arranged in the outer shell. A sealing ring groove is formed in the outer wall face of the inner shell inward contraction part, and a sealing ring is arranged in the sealing ring groove. According to the utility model, the structure of the sealing ring is improved, and the clamping phenomenon is avoided on the premise of reducing the contact area and ensuring the sealing at the same time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of oral irrigator and accessories, concretely relates to a rubber sealing ring and pull-out type oral irrigator shell. BACKGROUND

[0002] The oral irrigator is a new oral cleaning appliance, which uses the mode of pulse water flow impact to clean teeth and tooth gaps; the general flushing pressure is 0 to 90 psi. At present, the main types of oral irrigators on the market are table type, fixed frequency type, household variable frequency type and portable type.

[0003] In the traditional technology, the portable oral irrigator is set to be pull-out type, the space occupied by the oral irrigator is reduced through the structure of pull-out type, the structure of pull-out type is formed between the shell and the inner shell of the pull-out type oral irrigator, and the sealing ring is arranged between the inner shell and the shell to keep the machine body and the water tank sealed.

[0004] However, the traditional pull-out type oral irrigator still has the phenomenon of jamming of the inner and outer plastic shells in the up-down pull-out type operation after being used for a period of time, which affects the experience of consumers. The reason is that the material of the sealing ring is rubber, the surface is dry and has the characteristics of self-sticking, and after being used for many times, the phenomenon of jamming of the sealing ring after contacting the shell is more likely to occur. Through the research of the applicant, it is related to the contact area. INVENTION CONTENTS

[0005] The utility model overcomes the defects of the prior art and provides a rubber sealing ring and a pull-out type oral irrigator shell. The structure of the sealing ring is improved, the contact area is reduced, and the jamming phenomenon is avoided under the premise of ensuring sealing.

[0006] The technical scheme of the utility model is as follows.

[0007] A rubber sealing ring, the sealing ring comprises a sealing ring clamping part and a sealing ring sealing part, the cross-sectional shape of the sealing ring clamping part is the same as that of a sealing ring groove, and the sealing ring sealing part is a protruding structure outside the sealing ring clamping part; the protruding structure is a round protrusion with a smooth surface.

[0008] Further preferably, the cross-sectional area of the sealing ring sealing part is smaller than that of the sealing ring clamping part.

[0009] Further preferably, the sealing ring sealing part and the sealing ring clamping part are detachable.

[0010] A pull-out type oral irrigator shell adopting the rubber sealing ring, comprising an outer shell and an inner shell; the inner shell is composed of an inner shell top and an inner shell inner collecting part, and the inner shell inner collecting part is arranged inside the outer shell; a sealing ring groove is arranged on the outer wall surface of the inner shell inner collecting part, and a sealing ring is arranged inside the sealing ring groove.

[0011] Furthermore, a shell protrusion is provided on the inner wall surface of the shell.

[0012] Furthermore, an inner shell protrusion is provided on the outer wall surface of the inner shell.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] (1) The present invention improves the structure of the rubber sealing ring, thereby reducing the contact area while ensuring sealing, thereby avoiding the occurrence of jamming. In addition, the shape of the sealing portion of the sealing ring in the present invention has been tested by the applicant, and its application in the pull-out type water flosser shell is smoother than other shapes.

[0015] (2) The pull-out type oral irrigator housing of the utility model is combined with a rubber sealing ring with an improved structure, and it can be pulled out smoothly without any jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the pull-out type water flosser of the utility model;

[0017] Figure 2 for Figure 1 Cross-section of the middle BB;

[0018] Figure 3 This is the cross-sectional view of BB without the sealing ring;

[0019] Figure 4 for Figure 2 Enlarged view of point C in the middle;

[0020] Figure 5 Schematic diagram of the structure of the sealing ring;

[0021] Figure 6 Schematic diagram of the structure of the inner shell;

[0022] Figure 7 This is a cross-sectional view of the pull-out water flosser of the present invention;

[0023] Figure 8 It is a structural diagram of the rubber sealing ring.

[0024] The components in the figure are as follows: outer shell 1, inner shell 2, inner shell top 2.1, inner shell retracted part 2.2, sealing ring 3, sealing ring clamping part 3.1, sealing ring sealing part 3.2, sealing ring groove 4, outer shell protrusion 5, inner shell protrusion 6. DETAILED DESCRIPTION

[0025] The following description, combined with specific illustrations, illustrates the technical solution to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein. Any similar implementations made by a person of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention. Example

[0026] like Figure 5 As shown, this embodiment discloses a rubber sealing ring. The sealing ring 3 includes a sealing ring clamping portion 3.1 and a sealing ring sealing portion 3.2. In this embodiment, the cross-sectional shape of the sealing ring clamping portion 3.1 is the same as the cross-sectional shape of the sealing ring groove 4. The sealing ring sealing portion 3.2 is a raised structure on the outside of the sealing ring clamping portion 3.1. The raised structure is a smooth circular protrusion. The cross-sectional area of ​​the sealing ring sealing portion 3.2 is smaller than that of the sealing ring clamping portion 3.1. Example

[0027] like Figures 1 to 4 As shown, this embodiment discloses a pull-out type water flosser housing using the sealing ring 3 described in Example 1, and the specific structure includes an outer shell 1 and an inner shell 2; Figure 6 As shown, in this embodiment, the inner shell 2 is composed of an inner shell top 2.1 and an inner shell retracted portion 2.2; the inner shell retracted portion 2.2 is located inside the outer shell 1, and the inner shell top 2.1 is connected to the inner shell retracted portion 2.2, and the two are sleeved inside the outer shell 1 through the inner shell retracted portion 2.2; a sealing ring groove 4 is provided on the outer wall surface of the inner shell retracted portion 2.2, and a sealing ring 3 is provided inside the sealing ring groove 4. The sealing ring 3 in this embodiment is the structure described in Example 1. The sealing ring sealing portion 3.2 of the sealing ring 3 contacts the inner wall surface of the outer shell 1, so that the inner shell and the outer shell maintain a sealed state, while minimizing the friction between the two, so that the inner shell and the outer shell are smooth when pulled. After research by the applicant, Figure 5 The outer structure of the sealing ring sealing part 3.2 is optimal for smooth pulling.

[0028] like Figure 7 As shown, in this embodiment, the inner wall surface of the outer shell 1 is provided with an outer shell protrusion 5; the outer wall surface of the inner shell 2 is provided with an inner shell protrusion 6. The outer shell protrusion 5 and the inner shell protrusion 6 are used to ensure that the outer shell 1 and the inner shell 2 do not separate when the pull-out oral irrigator is in the extended state. Example

[0029] like Figure 8As shown, this embodiment discloses a rubber sealing ring, the sealing ring 3 includes a sealing ring clamping portion 3.1 and a sealing ring sealing portion 3.2; in this embodiment, the cross-sectional shape of the sealing ring clamping portion 3.1 is the same as the cross-sectional shape of the sealing ring groove 4, and the sealing ring sealing portion 3.2 is a raised structure outside the sealing ring clamping portion 3.1, and the raised structure is a circular protrusion with a smooth surface. The cross-sectional area of ​​the sealing ring sealing portion 3.2 is smaller than the cross-sectional area of ​​the sealing ring clamping portion 3.1. There is a detachable structure between the sealing ring sealing portion 3.2 and the sealing ring clamping portion 3.1, as shown in FIG. Figure 8 If the drawer becomes stuck after long-term use, the sealing ring 3.2 can be removed and replaced to avoid the sticking phenomenon.

[0030] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A rubber sealing ring, characterized in that: The sealing ring (3) comprises a sealing ring clamping portion (3.1) and a sealing ring sealing portion (3.2); the cross-sectional shape of the sealing ring clamping portion (3.1) is the same as the cross-sectional shape of the sealing ring groove (4); the sealing ring sealing portion (3.2) is a raised structure outside the sealing ring clamping portion (3.1); and the raised structure is a circular raised structure with a smooth surface.

2. A rubber sealing ring as claimed in claim 1, characterized in that: The cross-sectional area of ​​the sealing ring sealing portion (3.2) is smaller than the cross-sectional area of ​​the sealing ring clamping portion (3.1).

3. A rubber sealing ring as claimed in claim 1, characterized in that: A detachable structure is provided between the sealing ring sealing portion (3.2) and the sealing ring clamping portion (3.1).

4. A pull-out type oral irrigator housing using the rubber sealing ring according to claim 1 or 2, characterized in that: The invention comprises an outer shell (1) and an inner shell (2); the inner shell (2) is composed of an inner shell top (2.1) and an inner shell retracted portion (2.2); the inner shell retracted portion (2.2) is arranged inside the outer shell (1); a sealing ring groove (4) is provided on the outer wall surface of the inner shell retracted portion (2.2), and a sealing ring (3) is provided inside the sealing ring groove (4).

5. The pull-out type oral irrigator housing with a rubber sealing ring as claimed in claim 4, characterized in that: A shell protrusion (5) is provided on the inner wall surface of the shell (1).

6. The pull-out type oral irrigator housing with a rubber sealing ring as claimed in claim 4, characterized in that: An inner shell protrusion (6) is provided on the outer wall surface of the inner shell (2).

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