Oral cavity sand blasting head

Abstract

The utility model discloses an oral cavity sand blasting head, which relates to the technical field of medical equipment and comprises a sand blasting head main body, one end of the sand blasting head main body is rotatably connected with a grab handle butt joint cap, and one end of the sand blasting head main body close to the grab handle butt joint cap is provided with a water inlet chamber and a sand inlet chamber which are distributed in parallel. A spraying opening communicated with the sand inlet cavity is formed in the side wall of the end, away from the grab handle butt joint cap, of the sand blasting head body, a water outlet communicated with the water inlet cavity and located on the side of the spraying opening is formed in the side wall of the end, away from the grab handle butt joint cap, of the sand blasting head body, sand is sprayed out from the spraying opening in the axial direction, and water is sprayed out from the water outlet in the axial direction. Sand is axially ejected from the ejection opening, water is axially ejected from the water outlet, soft dirt and pigment are mixed and removed on the surfaces of teeth, the ejection direction of the ejection head body does not need to be frequently adjusted in an oral cavity, and the cleaning efficiency is improved; meanwhile, the sand blasting head main body can be used for cleaning the distal surface of the rear tooth and the near and distal surface of the exposed tooth root of a patient with severe periodontitis.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an oral sandblasting head. Background Art

[0002] Oral sandblasting head is a tool used for oral cleaning and polishing, usually used with a sandblasting machine. The sandblasting head consists of sandblasting material and a tube. The tube is used to transfer the sandblasting material to the sandblasting head, and the sandblasting material is sprayed at high speed by the sandblasting head to clean and polish the teeth, remove soft plaque and pigments on the teeth, reduce oral problems such as periodontal disease and pigmentation, and improve oral health.

[0003] The water outlet of the existing oral sandblasting head is usually set at the end of the sandblasting head, and the high-speed spraying operation is performed along the axial direction of the sandblasting head. Since the adjacent surfaces of the teeth have a certain curvature, when sandblasting the adjacent surfaces, it is necessary to constantly adjust the spray direction of the spray head in the oral cavity, which affects the high-efficiency spraying efficiency; at the same time, the existing sandblasting head has an operation blind spot, including the distal surface of the posterior teeth, and the exposed mesiodistal surface of the root of patients with severe periodontitis. Therefore, an oral sandblasting head is designed and produced here to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an oral sandblasting head to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an oral sandblasting head, comprising: a sandblasting head body, one end of the sandblasting head body is rotatably connected to a handle docking cap, the end of the sandblasting head body close to the handle docking cap is provided with a water inlet chamber and a sand inlet chamber distributed in parallel with each other, the side wall of the sandblasting head body at one end away from the handle docking cap is provided with a spray port connected to the sand inlet chamber, the side wall of the sandblasting head body at one end away from the handle docking cap is provided with a water outlet connected to the water inlet chamber and located on the side of the spray port, sand is axially ejected from the spray port, and water is axially ejected from the water outlet, so as to mix and remove soft plaque and pigment on the tooth surface.

[0006] In a further embodiment, the sand inlet chamber is located on the central axis of the sandblasting head, and a plurality of water inlet chambers are provided, and the plurality of water inlet chambers are evenly spaced around the outer side of the sand inlet chamber.

[0007] In a further embodiment, a plurality of notches are provided on the inner side wall of the handle docking cap opening, a circular arc-shaped threaded plate is fixed on the inner wall of each notch near the end of the handle docking cap, and the circular arc-shaped threaded plate extends obliquely toward the center of the handle docking cap, and a threaded docking chamber threadedly connected to the end of the handle is formed between the plurality of circular arc-shaped threaded plates.

[0008] In a further embodiment, a rubber sealing ring is provided at one end of the handle docking cap close to the sandblasting head body, one end of the rubber sealing ring is against one end of the sandblasting head body, and the other end of the rubber sealing ring is docked with the edge of the handle end.

[0009] In a further embodiment, an inner wall of one end of the rubber sealing ring butting against the end of the handle is provided with an annular extension portion in the radial direction, and the annular extension portion abuts against the edge of the end of the handle.

[0010] In a further embodiment, an annular hollow guide ring is fixed to the inner side wall of the annular extension portion.

[0011] In a further embodiment, an annular guide ring is fixed to the outer wall of one end of the sandblasting head body close to the handle docking cap, and an annular guide groove rotatably engaged with the annular guide ring is formed on the inner wall of the handle docking cap.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses an oral sandblasting head. The main body of the sandblasting head is connected with the end of the handle by a handle connection cap, so that water and sand to be blasted are respectively guided to the water inlet chamber and the sand inlet chamber. Sand is axially ejected from the ejection port, and water is axially ejected from the water outlet. Since the tooth surface is arc-shaped, the water and sand ejected in parallel are mixed on the tooth surface to remove soft plaque and pigment. It is not necessary to frequently turn over and adjust the ejection direction of the ejection head main body in the oral cavity, so as to improve the efficiency. At the same time, the main body of the sandblasting head can be used to clean the distal surface of the posterior teeth and the mesiodistal and mesiodistal surfaces of the exposed tooth roots of patients with severe periodontitis, so as to solve the problem that the existing sandblasting head cannot clean the above positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the reverse side of the main structure of an embodiment of the utility model;

[0016] Figure 3 A schematic diagram showing a further improvement of the main structure of an embodiment of the utility model;

[0017] Figure 4 A side view of the sealing structure of an embodiment of the utility model;

[0018] Figure 5 This is a cross-sectional view of the main structure of an embodiment of the utility model.

[0019] In the figure: 1. sandblasting head body; 11. spray outlet; 12. handle docking cap; 13. sand inlet chamber; 14. water inlet chamber; 141. water outlet; 15. arc-shaped threaded plate; 2. rubber sealing ring; 21. annular extension; 22. annular hollow guide ring. DETAILED DESCRIPTION

[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] Examples, such as Figure 1 , Figure 2 as well as Figure 5 As shown, the present embodiment provides a sandblasting head body 1, one end of the sandblasting head body 1 is rotatably connected to a handle docking cap 12, the end of the sandblasting head body 1 close to the handle docking cap 12 is provided with a water inlet chamber 14 and a sand inlet chamber 13 which are parallel to each other, the side wall of the end of the sandblasting head body 1 away from the handle docking cap 12 is provided with a spray port 11 which is connected to the sand inlet chamber 13, and the side wall of the end of the sandblasting head body 1 away from the handle docking cap 12 is provided with a water outlet 141 which is connected to the water inlet chamber 14 and is located on the side of the spray port 11. The sandblasting head body 1 uses the handle docking cap 12 to threadedly dock with the end of the handle, so as to guide water and sand to be blasted to the water inlet chamber 14 and the sand inlet chamber 13 respectively, the sand is axially ejected from the spray port 11, and the water is axially ejected from the water outlet 141, so as to mix and remove soft plaque and pigment on the tooth surface, and there is no need to frequently flip and adjust the spray direction of the spray head body in the oral cavity, thereby improving the cleaning efficiency. Furthermore, the sandblasting head body 1 can extend into the distal surface of the posterior teeth and the exposed mesiodistal surface of the tooth roots of patients with severe periodontitis to clean them, thus solving the problem that the existing sandblasting head cannot clean the above-mentioned positions.

[0022] Furthermore, the sand inlet chamber 13 is located on the central axis of the sandblasting head, and a plurality of water inlet chambers 14 are provided, and the plurality of water inlet chambers 14 are evenly spaced around the outer side of the sand inlet chamber 13. Moreover, the water inlet chamber 14 and the sand inlet chamber 13 extend parallel to the axial direction of the sandblasting head body 1 without any connection or intersection, and the water and sand enter the ejection port 11 along their respective corresponding chambers, merge and eject. Figure 1 It can be clearly seen that the space in the sand inlet chamber 13 is larger than the space in the water inlet chamber 14. Since the multiple water inlet chambers 14 are evenly spaced around the outer side of the sand inlet chamber 13, the advantage is that the sand is ejected from the middle position, while the water is ejected from the periphery of the sand, thus avoiding discomfort to the oral tissue caused by the high-speed ejection of the sand.

[0023] Since the handles of sandblasting machines of different specifications have different sizes, the sizes of the ends of the handles are also different. When docking with the handle docking cap 12, there will be a problem of poor sealing, resulting in water leakage and sand leakage, which will cause sand and water to not be ejected in a high-pressure manner, and the purpose of cleaning the tartar and gums on the tooth surface cannot be achieved. For this reason, a plurality of notches are provided on the inner wall of the opening of the handle docking cap 12. A circular arc threaded plate 15 is fixed to the inner wall of one side of each notch near the end of the handle docking cap 12, and the circular arc threaded plate 15 extends obliquely toward the center of the handle docking cap 12. A threaded docking chamber threadedly connected to the end of the handle is formed between the plurality of circular arc threaded plates 15. In addition, an annular guide ring is fixed to the outer wall of one end of the sandblasting head body 1 near the handle docking cap 12, and an annular guide groove rotatably engaged with the annular guide ring is provided on the inner wall of the handle docking cap 12. The handle docking cap 12 can rotate relative to the sandblasting head body 1 by using the annular guide ring. Figure 3 and Figure 5 As shown. Insert the water supply pipe and sand supply pipe of the handle end of different specifications into the water inlet chamber 14 and the sand inlet chamber 13 respectively, then align the outer wall of the handle end with the threaded docking chamber formed by multiple arc-shaped threaded plates 15, hold the sandblasting head body 1 and the handle without rotating, and turn the handle docking cap 12 by hand to screw the handle end into the threaded docking chamber along the axial direction. In this process, the water supply pipe and sand supply pipe at the handle end will not be staggered with the openings of the water inlet chamber 14 and the sand inlet chamber 13, and the handle docking cap 12 gradually expands the multiple arc-shaped threaded plates 15 to the side away from each other at the handle end, and the expanded arc-shaped threaded plates 15 generate rebound potential energy to ensure a tight threaded connection with the handle end. Until the handle end is against the side walls of the water inlet chamber 14 and the sand inlet chamber 13 openings of the sandblasting head body 1, seamless docking is achieved.

[0024] Furthermore, a rubber sealing ring 2 is provided in the handle docking cap 12 near the end of the sandblasting head body 1, one end of the rubber sealing ring 2 is against one end of the sandblasting head body 1, and the other end of the rubber sealing ring 2 is docked with the edge of the handle end. Figure 3 and Figure 4 As shown, the rubber sealing ring 2 is placed in the handle docking cap 12 near one end of the sandblasting head body 1. As the handle end is continuously screwed in, the handle end rests on the side wall of the end of the rubber sealing ring 2 and squeezes the rubber sealing ring 2, compressing the rubber sealing ring 2 to produce deformation, thereby enhancing the sealing between the side wall of the handle end and the side wall of one end of the sandblasting head body 1 located at the handle docking cap 12, ensuring good docking sealing.

[0025] Moreover, an annular extension portion 21 is radially provided on the inner wall of the end of the rubber sealing ring 2 that butts against the end of the handle. Figure 4As shown, an annular extension portion 21 is added to the inner side wall of the end of the rubber sealing ring 2 to enlarge the contact surface of the end that is connected to the end of the handle, thereby further improving the sealing performance.

[0026] Furthermore, an annular hollow guide ring 22 is fixed to the inner side wall of the annular extension portion 21. Figure 4 As shown, the annular hollow guide ring 22 improves the supporting strength on the inner wall of the annular extension portion 21. As the handle end is continuously screwed in, the handle end rests on the side wall of the end of the rubber sealing ring sleeve 2 and squeezes the rubber sealing ring sleeve 2. At this time, since the annular hollow guide ring 22 is provided to improve the strength of the inner space of the rubber sealing ring sleeve 2, the rubber sealing ring sleeve 2 will not be squeezed and deformed excessively during the compression deformation process, resulting in the rubber sealing ring sleeve 2 being cracked due to excessive deformation after long-term use, thereby affecting its service life.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oral sandblasting head, characterized in that: include: A sandblasting head body (1), one end of which is rotatably connected to a handle docking cap (12), an end of which is close to the handle docking cap (12) is provided with a water inlet chamber (14) and a sand inlet chamber (13) which are parallel to each other, a side wall of which is away from the handle docking cap (12) is provided with a spray port (11) which is connected to the sand inlet chamber (13), and a side wall of which is away from the handle docking cap (12) is provided with a water outlet (141) which is connected to the water inlet chamber (14) and is located on the side of the spray port (11), sand is axially sprayed out from the spray port (11), and water is axially sprayed out from the water outlet (141), so as to mix and remove soft plaque and pigment on the tooth surface.

2. The oral sandblasting head according to claim 1, characterized in that: The sand inlet chamber (13) is located on the central axis of the sandblasting head, and a plurality of water inlet chambers (14) are provided, and the plurality of water inlet chambers (14) are evenly spaced and distributed around the outer side of the sand inlet chamber (13).

3. The oral sandblasting head according to claim 1, characterized in that: The inner side wall of the handle docking cap (12) opening is provided with a plurality of notches, and a circular arc-shaped threaded plate (15) is fixed to the inner wall of each notch near the end of the handle docking cap (12), and the circular arc-shaped threaded plate (15) extends obliquely toward the center of the handle docking cap (12), and a threaded docking chamber threadedly connected to the end of the handle is formed between the plurality of circular arc-shaped threaded plates (15).

4. The oral sandblasting head according to claim 1, characterized in that: A rubber sealing ring (2) is provided in the handle docking cap (12) at one end close to the sandblasting head body (1), one end of the rubber sealing ring (2) abuts against one end of the sandblasting head body (1), and the other end of the rubber sealing ring (2) docks with the edge of the handle end.

5. The oral sandblasting head according to claim 4, characterized in that: An inner wall of one end of the rubber sealing ring (2) butting against the end of the handle is provided with an annular extension portion (21) in the radial direction, and the annular extension portion (21) abuts against the edge of the end of the handle.

6. The oral sandblasting head according to claim 5, characterized in that: An annular hollow guide ring (22) is fixed to the inner side wall of the annular extension portion (21).

7. The oral sandblasting head according to claim 1, characterized in that: An annular guide ring is fixed to the outer wall of one end of the sandblasting head body (1) close to the handle docking cap (12), and an annular guide groove rotatably engaged with the annular guide ring is provided on the inner wall of the handle docking cap (12).

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