Waterproof structure of water pick nozzle

Abstract

The utility model relates to the technical field of oral irrigators, and discloses a waterproof structure of an oral irrigator nozzle, which comprises an oral irrigator body, a nozzle main body is arranged above the oral irrigator body, a waterproof component is arranged between the oral irrigator body and the nozzle main body, and the waterproof component comprises a connecting seat fixed on the top surface of the oral irrigator body. The connecting base is communicated with the interior of the oral irrigator body, and the outer wall of the connecting base is in threaded connection with a gland. The pressing stroke of the gland can be positioned through the positioning nut, follow-up disassembly difficulty or sealing ring damage caused by too tight pressing of the pressing ring is prevented, meanwhile, the spring is adopted for applying force to press the pressing ring, and the pressing force can be continuously maintained when threaded connection between the gland and the connecting base is loosened due to vibration of the oral irrigator body. And when the sealing ring is aged and loosened, the positioning nut can be adjusted up and down, the pressing stroke of the gland is increased, the sealing performance is continuously maintained, and the service life of the sealing ring is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of oral irrigators, and in particular to a waterproof structure of a nozzle of an oral irrigator. Background Art

[0002] A water flosser is a structure used for oral care. It uses a certain pressure to spray a column of cleaning water from the nozzle of the water flosser to clean the user's oral cavity. Currently, water flossers are widely used in people's daily lives.

[0003] An existing waterproof structure of a water flosser nozzle (Announcement No.: CN220025265U) has the following defects: the above-mentioned device achieves sealing by adopting a waterproof ring and a first sealing ring to abut against the inner wall of the water flosser body respectively, but because the water flosser nozzle is locked by a transverse locking assembly, the first sealing ring abuts against the inner wall of the water flosser body. During the long-term and frequent replacement process of the water flosser nozzle, the sealing ring is continuously compressed, resulting in stress relaxation of the sealing ring, resulting in a small gap at the abutment between the first sealing ring and the water flosser body. At this time, only a new first sealing ring can be replaced, so that the first sealing ring does not reach the standard service life. For this reason, the utility model is proposed. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and proposes a waterproof structure for a nozzle of a water flosser.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A waterproof structure for a water flosser nozzle comprises a water flosser body, a nozzle body is arranged above the water flosser body, a waterproof component is arranged between the water flosser body and the nozzle body, the waterproof component comprises a connecting seat fixed on the top surface of the water flosser body, the connecting seat is connected to the inside of the water flosser body, a pressure cap is threadedly connected to the outer wall of the connecting seat, the pressure cap is movably sleeved on the outer wall of the nozzle body, a fitting ring is fixed inside the connecting seat, a sealing ring is fixed on the top surface of the fitting ring, and a clamping ring is fixed to the outer wall of the nozzle body near the bottom.

[0007] Preferably, a connecting ring is slidably provided on the outer wall of the nozzle body, and the connecting ring is also located inside the pressure cover. A spring is fixed between the connecting ring and the clamping ring. The spring is movably sleeved on the outer wall of the nozzle body, and a positioning nut is threadedly connected to the outer wall of the connecting seat.

[0008] Preferably, a plurality of limiting rods are fixed to the outer wall of the connecting seat, a plurality of limiting openings are opened on the inner wall of the connecting ring, and the limiting rods are slidably arranged inside the limiting openings.

[0009] Preferably, the inner bottom surface of the gland and the top surface of the connecting ring are both sprayed with a ceramic wear-resistant layer.

[0010] Preferably, a limiting plate is fixed to the outer wall of the nozzle body.

[0011] Preferably, the inner diameters of the clamping ring, the sealing ring and the fitting ring gradually expand along the water outlet direction of the oral irrigator body.

[0012] The beneficial effects of the utility model are:

[0013] Through the setting and use of the pressure cap and the connecting ring, when the pressure cap and the connecting seat are threadedly connected, the connecting ring will be pressed down, and the connecting ring will compress the spring so that the clamping ring and the sealing ring fit tightly, and the positioning nut can position the clamping stroke of the pressure cap to prevent the clamping ring from being pressed too tight, resulting in subsequent disassembly difficulties or damage to the sealing ring. At the same time, the spring force is used to compress the clamping ring, and the clamping force can be maintained when the threaded connection between the pressure cap and the connecting seat is loosened due to vibration during use of the water flosser body, thereby effectively reducing leakage. When the sealing ring is aged and loose, the positioning nut can be adjusted up and down to increase the clamping stroke of the pressure cap, continue to maintain the sealing, and increase the service life of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional split structure proposed by the utility model;

[0016] Figure 3 for Figure 2 A is a magnified schematic diagram of the local structure of the middle part;

[0017] Figure 4 for Figure 2 A magnified schematic diagram of the local structure of B.

[0018] In the figure: 1. Water flosser body; 101. Nozzle body; 2. Connecting seat; 201. Pressure cover; 202. Fitting ring; 203. Sealing ring; 204. Pressure ring; 205. Connecting ring; 206. Spring; 207. Positioning nut; 3. Limit rod; 301. Limit opening; 4. Ceramic wear-resistant layer; 5. Limit plate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the utility model.

[0021] Please refer to the attached Figure 1 -Attached Figure 4 A waterproof structure of a water flosser nozzle comprises a water flosser body 1, a nozzle body 101 is arranged above the water flosser body 1, a waterproof component is arranged between the water flosser body 1 and the nozzle body 101, the waterproof component comprises a connecting seat 2 fixed on the top surface of the water flosser body 1, the connecting seat 2 is connected to the inside of the water flosser body 1, a pressure cap 201 is threadedly connected to the outer wall of the connecting seat 2, the pressure cap 201 is movably sleeved with the outer wall of the nozzle body 101, a fitting ring 202 is fixed inside the connecting seat 2, a sealing ring 203 is fixed on the top surface of the fitting ring 202, and a clamping ring 204 is fixed to the outer wall of the nozzle body 101 near the bottom.

[0022] In the embodiment, the outer wall of the nozzle body 101 is slidably provided with a connecting ring 205, and the connecting ring 205 is also located inside the pressure cover 201. A spring 206 is fixed between the connecting ring 205 and the clamping ring 204. The spring 206 is movably sleeved with the outer wall of the nozzle body 101, and the outer wall of the connecting seat 2 is threadedly connected with a positioning nut 207. Through the arrangement and use of the pressure cover 201 and the connecting ring 205, when the pressure cover 201 is threadedly connected to the connecting seat 2, the connecting ring 205 is pressed down, and the connecting ring 205 compresses the spring 206 so that the clamping ring 204 is tightly attached to the sealing ring 203. The positioning nut 207 can position the clamping stroke of the pressure cover 201 to prevent the clamping ring 204 from being pressed too tight, which will make subsequent disassembly difficult or cause damage to the sealing ring 203. At the same time, the spring 206 is used to compress the clamping ring 204. When the water flosser body 1 is used and the threaded connection between the pressure cover 201 and the connecting seat 2 is loosened due to vibration, the clamping force can be maintained, which effectively reduces leakage. When the sealing ring 203 is aged and loosened, the positioning nut 207 can be adjusted up and down to increase the clamping stroke of the pressure cover 201, continue to maintain the sealing, and increase the service life of the sealing ring 203.

[0023] In the embodiment, a plurality of limit rods 3 are fixed on the outer wall of the connecting seat 2, a plurality of limit openings 301 are opened on the inner wall of the connecting ring 205, and the limit rods 3 and the limit openings 301 are internally slidingly arranged. Through the arrangement and use of the limit rods 3, a limiting effect can be exerted on the connecting ring 205 to prevent the friction force of the connecting ring 205 from being driven to rotate by the pressure cover 201, causing the spring 206 to rotate and twist and cause damage.

[0024] In the embodiment, the inner bottom surface of the pressure cover 201 and the top surface of the connecting ring 205 are sprayed with a ceramic wear-resistant layer 4. Through the provision and use of the ceramic wear-resistant layer 4, the wear resistance of the contact surface between the pressure cover 201 and the connecting ring 205 can be increased, thereby increasing the service life of the oral irrigator.

[0025] In the embodiment, a limiting plate 5 is fixed to the outer wall of the nozzle body 101 . The setting and use of the limiting plate 5 can prevent the pressure cover 201 from falling off the nozzle body 101 .

[0026] In the embodiment, the inner diameters of the clamping ring 204, the sealing ring 203 and the fitting ring 202 are gradually expanded along the water outlet direction of the water flosser body 1. By setting the inner diameters of the clamping ring 204, the sealing ring 203 and the fitting ring 202 to gradually expand along the water outlet direction of the water flosser body 1, the clamping ring 204, the sealing ring 203 and the fitting ring 202 are made into a funnel-shaped structure, thereby increasing the contact area between the clamping ring 204, the sealing ring 203 and the fitting ring 202 without reducing the water outlet diameter of the connecting seat 2, thereby increasing the sealing area and increasing the sealing performance between the nozzle body 101 and the water flosser body 1.

[0027] Working principle: When in use, one end of the nozzle body 101 is placed inside the connecting seat 2, and the clamping ring 204 is fitted with the top surface of the sealing ring 203, and then the pressure cover 201 is rotated to be threadedly connected with the outer wall of the connecting seat 2. At this time, the connecting ring 205 compresses the spring 206 to make the clamping ring 204 fit tightly with the sealing ring 203, and the positioning nut 207 can locate the clamping stroke of the pressure cover 201 to prevent the clamping ring 204 from being pressed too tight, which may cause subsequent disassembly difficulties or damage to the sealing ring 203. At the same time, the spring 206 is used to apply force to compress the clamping ring 204, and the clamping force can also be maintained when the threaded connection between the pressure cover 201 and the connecting seat 2 is loosened due to vibration during use of the oral flushing device body 1 , effectively reducing the leakage, and when the sealing ring 203 is aged and loose, the positioning nut 207 can be adjusted up and down to increase the clamping stroke of the pressure cover 201, continue to maintain the sealing, and increase the service life of the sealing ring 203. The setting and use of the limiting plate 5 can prevent the pressure cover 201 from falling off the nozzle body 101. The setting and use of the ceramic wear-resistant layer 4 can increase the wear resistance of the contact surface between the pressure cover 201 and the connecting ring 205, and increase the service life of the water flosser. The setting and use of the limiting rod 3 can limit the connecting ring 205 to prevent the friction force of the connecting ring 205 from being driven to rotate by the pressure cover 201, causing the spring 206 to rotate and twist and cause damage.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A waterproof structure of a water flosser nozzle, comprising a water flosser body (1), characterized in that: A nozzle body (101) is arranged above the oral irrigator body (1), and a waterproof component is arranged between the oral irrigator body (1) and the nozzle body (101), the waterproof component comprising a connecting seat (2) fixed on the top surface of the oral irrigator body (1), the connecting seat (2) being connected to the inside of the oral irrigator body (1), a pressure cover (201) being threadedly connected to the outer wall of the connecting seat (2), the pressure cover (201) being movably sleeved with the outer wall of the nozzle body (101), a fitting ring (202) being fixed inside the connecting seat (2), a sealing ring (203) being fixed on the top surface of the fitting ring (202), and a clamping ring (204) being fixed on the outer wall of the nozzle body (101) near the bottom.

2. The waterproof structure of a water flosser nozzle according to claim 1, characterized in that: The outer wall of the nozzle body (101) is slidably provided with a connecting ring (205), and the connecting ring (205) is also located inside the pressure cover (201). A spring (206) is fixed between the connecting ring (205) and the clamping ring (204). The spring (206) is movably sleeved on the outer wall of the nozzle body (101), and the outer wall of the connecting seat (2) is threadedly connected with a positioning nut (207).

3. The waterproof structure of the oral irrigator nozzle according to claim 2, characterized in that: A plurality of limiting rods (3) are fixed on the outer wall of the connecting seat (2), a plurality of limiting openings (301) are opened on the inner wall of the connecting ring (205), and the limiting rods (3) are slidably arranged inside the limiting openings (301).

4. The waterproof structure of the oral irrigator nozzle according to claim 3, characterized in that: The inner bottom surface of the gland (201) and the top surface of the connecting ring (205) are both spray-coated with a ceramic wear-resistant layer (4).

5. The waterproof structure of a water flosser nozzle according to claim 4, characterized in that: A limiting plate (5) is fixed to the outer wall of the nozzle body (101).

6. The waterproof structure of a water flosser nozzle according to claim 5, characterized in that: The inner diameters of the clamping ring (204), the sealing ring (203) and the fitting ring (202) gradually expand along the water outlet direction of the oral irrigator body (1).

Images