Handle of sand blasting tooth cleaning machine

Abstract

The utility model discloses a sand blasting tooth cleaning machine handle which comprises a handle body and a spray head, a gas sand channel and a water channel which are not communicated are arranged in the handle body and the spray head, a gas sand pipe sleeve, a water pipe sleeve and an annular groove are arranged on the end face where the handle body is connected with the spray head, and the gas sand pipe sleeve and the water pipe sleeve protrude out of the end face. A through hole consistent with the gas-sand channel in size is formed in the gas-sand pipe sleeve and is coaxial with the gas-sand channel, a through hole consistent with the water channel in size is formed in the water pipe sleeve and is coaxial with the water channel, the annular groove is formed in the outer side of the gas-sand channel and the outer side of the water channel, and the spring is arranged at the bottom of the annular groove. A plurality of spaced limiting plates are arranged on the side wall between the spring and the opening of the annular groove in the circumferential direction. The device is convenient and fast to mount, dismount and rotate, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sandblasting dental cleaning, and particularly relates to a handle of a sandblasting dental cleaning machine. Background Art

[0002] Sandblasting dental cleaning is a dental cleaning method in dental treatment. It uses compressed gas (usually air) to lift dental sandblasting powder (the main components are usually sodium bicarbonate, glycine, and erythritol) and spray it onto the tooth surface, where it converges with the liquid medium (usually water) sprayed out together to remove dental plaque, soft dirt, tobacco stains, tea stains, etc. on the tooth surface.

[0003] The commonly used instrument for sandblasting dental cleaning is a sandblasting dental cleaning machine. The sandblasting dental cleaning machine includes a body and a handle. The handle is a handheld terminal device, including a handle body and a nozzle. An air-sand passage and a water passage are provided inside the handle body, and the air-sand passage and the water passage lead to the nozzle to spray air-sand and water together. For the convenience of replacement and cost reduction, the nozzle and the handle body are detachably connected. However, for more comprehensive and dead-angle-free dental cleaning, the nozzle is also required to be rotatable. For example, in the utility model patent with the application number "202223247051.3" and the name "Nozzle assembly of a dental sandblasting machine", although the rotation of the nozzle is achieved, the operation is rather cumbersome and the efficiency is relatively low. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a handle of a sandblasting dental cleaning machine to solve the problems existing in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A handle of a sandblasting dental cleaning machine includes a handle body and a nozzle. An unconnected air-sand passage and a water passage are provided inside both the handle body and the nozzle. An air-sand pipe sleeve, a water pipe sleeve, and an annular groove are provided on the end face where the handle body and the nozzle are connected. The air-sand pipe sleeve and the water pipe sleeve protrude from the end face. A through hole with the same size as the air-sand passage is provided inside the air-sand pipe sleeve, and the through hole is coaxial with the air-sand passage. A through hole with the same size as the water passage is provided inside the water pipe sleeve, and the through hole is coaxial with the water passage. The annular groove is arranged outside the air-sand passage and the water passage. A spring is provided at the bottom of the annular groove, and a plurality of spaced limiting plates are arranged circumferentially on the side wall between the spring and the opening of the annular groove. An air-sand pipe hole, a water pipe hole, and an annular convex plate are provided on the end face where the nozzle and the handle body are connected. The air-sand pipe hole is coaxial with the axis of the air-sand passage and matches with the air-sand pipe sleeve. The water pipe hole is coaxial with the axis of the water passage and matches with the water pipe sleeve. The annular convex plate is arranged outside the air-sand pipe hole and the water pipe hole and matches with the annular groove. A plurality of spaced clamping plates are arranged circumferentially on the annular convex plate. When the nozzle and the handle body are connected, the clamping plates are pressed between the limiting plates and the spring.

[0006] Preferably in this technical solution, multiple limiting plates are pairwise symmetric with respect to the axis of the handle body, and multiple clamping plates are pairwise symmetric with respect to the axis of the nozzle.

[0007] Preferably in this technical solution, the limiting plates are arranged on the outer side wall of the annular groove, and the clamping plates are correspondingly arranged on the outer side wall of the annular convex plate.

[0008] Preferably in this technical solution, the limiting plates are arranged on the inner side wall of the annular groove, and the clamping plates are correspondingly arranged on the inner side wall of the annular convex plate.

[0009] Preferably in this technical solution, sealing rings are arranged on the inner walls of the air sand pipe hole and the water pipe hole.

[0010] Compared with the prior art, in this utility model, the annular convex plate of the nozzle is inserted into the annular groove of the handle body, and the clamping plate on the nozzle is pressed between the limiting plate and the spring, realizing the detachable connection between the nozzle and the handle body. The clamping plate on the nozzle is clamped by the limiting plates at different positions, realizing the rotation of the nozzle. The installation, disassembly and rotation operations of this utility model are convenient and fast, improving the work efficiency. Description of the Drawings

[0011] Figure 1 It is a structural schematic diagram of this utility model.

[0012] Figure 2 It is Figure 1 The enlarged structural schematic diagram of A in

[0013] Figure 3 It is a structural schematic diagram of the nozzle of this utility model.

[0014] Figure 4 It is a structural schematic diagram of the handle body of this utility model.

[0015] Figure 5 It is Figure 3 The right view of

[0016] Figure 6 It is Figure 4 The left view of

[0017] In the figure: 1. Handle body; 2. Nozzle; 3. Air sand channel; 4. Water channel; 5. Air sand pipe sleeve; 6. Water pipe sleeve; 7. Annular convex plate; 8. Annular groove; 9. Spring; 10. Limiting plate; 11. Air sand pipe hole; 12. Water pipe hole; 13. Sealing ring; 14. Clamping plate. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-6 , a sandblasting dental cleaning machine handle of the present invention includes a handle body and a nozzle. The handle body is cylindrical, and the connection part between the nozzle and the handle body is also cylindrical. Non-connected air-sand channels and water channels are provided inside both the handle body and the nozzle. An air-sand pipe sleeve, a water pipe sleeve, and an annular groove are provided on the end face where the handle body and the nozzle are connected. The air-sand pipe sleeve and the water pipe sleeve protrude from the end face. A through hole with the same size as the air-sand channel is provided inside the air-sand pipe sleeve, and the through hole is coaxial with the air-sand channel. A through hole with the same size as the water channel is provided inside the water pipe sleeve, and the through hole is coaxial with the water channel. The annular groove is provided outside the air-sand channel and the water channel. A spring is provided at the bottom of the annular groove. A plurality of spaced limiting plates are circumferentially provided on the side wall between the spring and the opening of the annular groove. The distance between the limiting plates and the spring is equal, that is, the limiting plates are on the side walls at the same height of the annular groove. An air-sand pipe hole, a water pipe hole, and an annular convex plate are provided on the end face where the nozzle and the handle body are connected. The air-sand pipe hole and the air-sand channel form a counterbore, and the water pipe hole and the water channel form a counterbore. The axes of the air-sand pipe hole and the air-sand channel are coaxial and match the air-sand pipe sleeve, and the axes of the water pipe hole and the water channel are coaxial and match the water pipe sleeve. The annular convex plate is provided outside the air-sand pipe hole and the water pipe hole and matches the annular groove. A plurality of spaced clamping plates are circumferentially provided on the annular convex plate. When the nozzle and the handle body are connected, the clamping plates are pressed between the limiting plates and the spring.

[0020] When the present invention is specifically implemented, a plurality of limiting plates are symmetrically arranged in pairs with respect to the axis of the handle body, and a plurality of clamping plates are symmetrically arranged in pairs with respect to the axis of the nozzle. The interval between two adjacent limiting plates allows the clamping plate to pass through. The limiting plates and the clamping plates can be correspondingly arranged at different positions. In one form, the limiting plates are arranged on the outer side wall of the annular groove, and the clamping plates are correspondingly arranged on the outer side wall of the annular convex plate. In another form, the limiting plates are arranged on the inner side wall of the annular groove, and the clamping plates are correspondingly arranged on the inner side wall of the annular convex plate. Sealing rings are provided on the inner walls of the air-sand pipe hole and the water pipe hole.

[0021] During the specific installation of the present utility model, the annular convex plate of the nozzle is inserted into the annular groove of the handle body. During the insertion process, the clamping plate on the nozzle is avoided from the limiting plate in the annular groove, the nozzle is rotated after pressing the spring, so that the positions of the clamping plate and the limiting plate on the nozzle correspond. After releasing, the clamping plate is pressed against the limiting plate under the elastic force of the spring; during disassembly, the nozzle is pressed against the spring, the nozzle is rotated, and the clamping plate on the nozzle is avoided from the limiting plate in the annular groove, then the nozzle and the handle body can be separated to complete the disassembly.

Claims

1. A sandblasting dental cleaning machine handle, comprising a handle body and a nozzle. Non-connected air-sand channels and water channels are provided inside both the handle body and the nozzle. It is characterized in that: On the end face where the handle body is connected to the nozzle, a pneumatic abrasive tube sleeve, a water tube sleeve and an annular groove are provided. The pneumatic abrasive tube sleeve and the water tube sleeve protrude from the end face. A through hole with the same size as the pneumatic abrasive channel is provided in the pneumatic abrasive tube sleeve, and the through hole is coaxial with the pneumatic abrasive channel. A through hole with the same size as the water channel is provided in the water tube sleeve, and the through hole is coaxial with the water channel. The annular groove is arranged outside the pneumatic abrasive channel and the water channel. A spring is arranged at the bottom of the annular groove, and a plurality of spaced limiting plates are arranged circumferentially on the side wall between the spring and the opening of the annular groove; on the end face where the nozzle is connected to the handle body, a pneumatic abrasive tube hole, a water tube hole and an annular convex plate are provided. The axis of the pneumatic abrasive tube hole is coaxial with the axis of the pneumatic abrasive channel and matches with the pneumatic abrasive tube sleeve. The axis of the water tube hole is coaxial with the axis of the water channel and matches with the water tube sleeve. The annular convex plate is arranged outside the pneumatic abrasive tube hole and the water tube hole and matches with the annular groove. A plurality of spaced clamping plates are arranged circumferentially on the annular convex plate. When the nozzle is connected to the handle body, the clamping plates are pressed between the limiting plates and the spring.

2. The sandblasting dental cleaner handle according to claim 1, wherein: The plurality of limiting plates are pairwise symmetric with respect to the axis of the handle body, and the plurality of clamping plates are pairwise symmetric with respect to the axis of the nozzle.

3. The sandblasting dental cleaner handle according to claim 1, characterized in that: The limiting plates are arranged on the outer side wall of the annular groove close to the outside, and the clamping plates are correspondingly arranged on the outer side wall of the annular convex plate.

4. The sandblasting dental scaler handle according to claim 1, wherein: The limiting plates are arranged on the inner side wall of the annular groove close to the inside, and the clamping plates are correspondingly arranged on the inner side wall of the annular convex plate.

5. The sandblasting dental scalers handle according to claim 1, characterized in that: Sealing rings are arranged on the inner walls of the pneumatic abrasive tube hole and the water tube hole.

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