Sand blasting powder tank gas outlet assembly and sand blasting powder tank

Abstract

The utility model relates to dental medical instrument technical field, concretely is a kind of sand blasting powder tank air outlet subassembly and sand blasting powder tank, sand blasting powder tank air outlet subassembly, including air outlet part, powder tank metal seat and air duct, tank air inlet hole for connecting external gas source and the seat air duct hole being communicated with tank air inlet hole are provided on powder tank metal seat, air outlet part includes cap body and support structure, support structure is set in the top of cap body, the lower end of air duct is installed on support structure, cap body is provided with the cap air duct hole and cap side air outlet hole being communicated, cap air duct hole is communicated with air duct hole;Sand blasting powder tank includes the air outlet subassembly. The sand blasting powder tank air outlet subassembly is by cap side air outlet hole to guide compressed air to powder tank sand leak bottom, effectively disperses the fine sand of reunion, guarantees sand blasting powder stable output;The sand blasting powder tank containing the component, improves sand blasting cleaning equipment stability and cleaning effect, and internal powder tank sand guide pipe and so on structure layout is reasonable, beneficial to sand blasting powder flow conveying.

Description

Technical Field

[0001] This utility model relates to the field of dental medical device technology, specifically to a sandblasting powder canister air outlet assembly and a sandblasting powder canister. Background Technology

[0002] In the field of dental treatment, air polishing equipment is widely used in clinical practice as an important tool for efficiently cleaning plaque, soft deposits, early tartar, and stains such as tobacco and tea on the tooth surface.

[0003] Air blasting cleaning equipment uses compressed air to propel abrasive powder (the main components of which are usually sodium bicarbonate, glycine, or erythritol) onto the tooth surface, where it mixes with a liquid medium (usually water) to achieve the purpose of cleaning teeth. In this process, the abrasive powder tank is a key component for storing and transporting abrasive powder, and its performance directly affects the effect of air blasting cleaning.

[0004] Existing sandblasting powder canister designs typically include a canister body, a sealing cap, an air inlet pipe, an air guide pipe, and an air outlet pipe. During operation, compressed air enters the canister body through the air inlet pipe, raising the sandblasting powder inside the canister. The mixture of sandblasting powder and gas is then transported to the sandblasting handle through the air guide and air outlet pipes, and finally sprayed out to achieve the cleaning effect.

[0005] However, in practical applications, especially when using fine-particle sandblasting powder, the fine sand in the powder tank tends to clump together in the sand funnel, preventing the compressed air from effectively lifting the fine sand and thus affecting the normal use and cleaning effect of the sandblasting equipment. To address this problem, the existing sandblasting powder tank design has not yet proposed an effective solution.

[0006] Therefore, developing a sandblasting powder canister air outlet component and sandblasting powder canister that can effectively solve the problem of fine sand agglomeration and ensure stable output of sandblasting powder has become an urgent technical problem to be solved in this field. Utility Model Content

[0007] To address the aforementioned issues, this invention provides a sandblasting powder canister air outlet component and a sandblasting powder canister. The sandblasting powder canister air outlet component guides compressed air to the bottom of the powder canister's sand drain through the air outlet on the cap side, effectively breaking up agglomerated fine sand and ensuring stable output of sandblasting powder. The sandblasting powder canister including this component improves the stability and cleaning effect of the sandblasting cleaning equipment, and the internal structure, such as the powder canister's sand guide pipe, is rationally laid out, facilitating the flow and transportation of sandblasting powder.

[0008] The technical solution of this utility model is as follows:

[0009] A sandblasting powder canister air outlet assembly includes an air outlet component, a powder canister metal base, and an air guide pipe. The powder canister metal base is provided with a canister air inlet for connecting to an external air source and a base air guide hole communicating with the canister air inlet. The air outlet component includes a cap body and a support structure. The support structure is located on the top of the cap body, and the lower end of the air guide pipe is installed on the support structure. The cap body is provided with a cap air guide hole and a cap side air outlet that communicate with each other. The cap air guide hole communicates with the air guide hole.

[0010] Furthermore, the air duct is a tapered tubular structure with a lower diameter smaller than the upper diameter.

[0011] Furthermore, several vent holes are evenly distributed on the side of the cap body.

[0012] Furthermore, the seat air vent, air vent tube, and cap air vent are concentric.

[0013] Furthermore, the support structure consists of several cap brackets fixedly installed on the top of the cap body.

[0014] Furthermore, three cap supports are fixedly installed on the top of the cap body, and the three cap supports are evenly distributed circumferentially with the axis of the air duct as the center.

[0015] Furthermore, the top of the cap bracket is provided with a snap-fit ​​that matches the shape of the bottom of the air tube.

[0016] A sandblasting powder canister includes a canister lid, a sand guide pipe, a canister body, a sand filter, and a lower fixed cover. It also includes the aforementioned sandblasting powder canister venting assembly, with a vent hole on the cap side located at the bottom of the sand filter.

[0017] Furthermore, the sand guide pipe of the powder tank passes through the air guide pipe, the air guide hole of the cap, and the air guide hole of the seat, with the two ends of the sand guide pipe of the powder tank located on the outside of the air guide pipe and the air guide hole of the seat, respectively.

[0018] Furthermore, the top of the sand guide pipe of the powder tank is provided with a sand discharge guide rod cap, which consists of a guide rod part and a cap part. The guide rod part is provided with a sand discharge hole, and the cap part is provided with a sand inlet hole that communicates with the sand discharge hole.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model discloses a sandblasting powder canister air outlet component, which effectively solves the problem of fine sand agglomeration. By setting a connected cap air guide hole and several cap side air outlet holes evenly distributed on the side of the cap body of the air outlet component, and the cap air guide hole is connected to the seat air guide hole on the metal base of the powder canister, the compressed air is guided to the bottom of the sand funnel of the powder canister through the cap side air outlet holes, which can disperse the fine sand agglomerated in the sand funnel part, ensure that the compressed air effectively lifts the fine sand, solve the problem of fine sand not being lifted, and ensure stable output of sandblasting powder.

[0021] 2. The present invention discloses a sandblasting powder canister that improves the performance of sandblasting cleaning equipment. The sandblasting powder canister includes a sandblasting powder canister air outlet component. Since the air outlet component can effectively solve the problem of fine sand agglomeration and ensure stable output of sandblasting powder, it improves the stability of sandblasting cleaning equipment, enhances the cleaning effect, and meets the clinical practice needs for efficient cleaning of plaque, soft deposits, early tartar, and stains such as tobacco and tea on the tooth surface. Attached Figure Description

[0022] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0023] In the attached diagram:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the air outlet component of a sandblasting powder tank air outlet assembly according to an embodiment of the present utility model.

[0025] Figure 2 This is a cross-sectional structural diagram of a sandblasting powder tank according to an embodiment of the present utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the sand discharge guide rod cap of a sandblasting powder tank according to an embodiment of the present utility model.

[0027] Figure 4 This is a cross-sectional structural diagram of the sand discharge guide rod cap of a sandblasting powder tank according to an embodiment of the present utility model.

[0028] Figure 5 This is a three-dimensional half-section structural diagram of the metal base of a sandblasting powder can according to an embodiment of the present utility model.

[0029] The components represented by the various reference numerals in the diagram are:

[0030] This utility model includes: 1. Powder tank lid, 2. Powder tank lid sealing gasket, 3. Sand discharge guide rod cap, 310. Guide rod part, 311. Sand discharge hole, 320. Cap part, 321. Sand inlet hole, 4. Lamp wire cover plate, 5. Powder tank sand guide pipe, 6. Air guide pipe, 7. Powder tank body, 8. Powder tank sand funnel, 9. Air outlet component, 910. Cap air guide hole, 920. Cap side air outlet hole, 930. Cap bracket, 10. Powder tank metal base, 1010. Tank air inlet hole, 1020. Base air guide hole, 11. Powder tank locking ring, 12. Powder tank lower fixing cover, 13. Square ring. Detailed Implementation

[0031] like Figure 2As shown, the sandblasting powder tank mainly consists of a powder tank cover 1, a powder tank guide pipe 5, a powder tank body 7, a powder tank sand funnel 8, a powder tank lower fixed cover 12, and a sandblasting powder tank air outlet assembly; wherein, the sandblasting powder tank air outlet assembly includes an air outlet component 9, a powder tank metal seat 10, and an air guide pipe 6.

[0032] Except for the air outlet component of the sandblasting powder tank, all other components in the above structure are existing technologies. They will be briefly introduced below to facilitate understanding of the core improvements of this utility model. Therefore, only a brief description will be given, and no further details will be elaborated.

[0033] The powder can lid 1 is located at the top of the powder can body 7 and serves to seal the top of the powder can body 7. A powder can lid sealing gasket 2 is provided between the powder can lid 1 and the powder can body 7. The powder can lower fixed cover 12 is located at the bottom of the powder can body 7 and serves to seal the bottom of the powder can body 7 and provide a fixed support. The powder can lower fixed cover 12 is fixedly connected to the sealed powder can body 7 through the powder can locking ring 11.

[0034] A square ring 13 for sealing is also provided between the powder can metal base 10 and the powder can lower fixed cover 12.

[0035] The sand guide pipe 5 of the powder tank passes through the air guide pipe 6, the cap air guide hole 910 and the seat air guide hole 1020, with its two ends on the outside of the air guide pipe 6 and the seat air guide hole 1020 respectively.

[0036] The top of the sand guide pipe 5 in the powder tank is equipped with a sand discharge guide rod cap 3, such as... Figure 3 and Figure 4 As shown, the sand discharge guide rod cap 3 consists of a guide rod part 310 and a cap part 320. The guide rod part 310 is provided with a sand discharge hole 311, and the cap part 320 is provided with a plurality of sand inlet holes 321 that communicate with the sand discharge hole 311.

[0037] The powder container sand vent 8 is located inside the powder container body 7, and the vent 920 on the cap side is located at the bottom of the powder container sand vent 8.

[0038] In addition, a lamp wire cover plate 4 is installed on the outside of the powder tank body 7.

[0039] Based on the above-mentioned prior art, the present invention improves the air outlet component of the sandblasting powder tank. The air outlet component of the sandblasting powder tank includes an air outlet component 9, a powder tank metal seat 10 and an air guide pipe 6. The powder tank metal seat 10 is fixedly installed on the lower fixed cover 12 of the powder tank.

[0040] like Figure 5 As shown, the powder can metal base 10 is provided with a can air inlet 1010 and a base air guide hole 1020. The can air inlet 1010 is used to connect to an external air source, and the base air guide hole 1020 is connected to the can air inlet 1010.

[0041] like Figure 1As shown, the air outlet component 9 includes a cap body and a support structure; the support structure consists of three cap brackets 930 fixedly installed on the top of the cap body. The three cap brackets 930 are evenly distributed around the axis of the air guide tube 6. The top of the cap bracket 930 is provided with a snap that matches the bottom shape of the air guide tube 6; the cap body is provided with a connected cap air guide hole 910 and a cap side air outlet hole 920. Several cap side air outlet holes 920 are evenly distributed on the side of the cap body, and the cap air guide hole 910 is connected to the seat air guide hole 1020.

[0042] The air guide tube 6 is a tapered tubular structure with a lower diameter smaller than the upper diameter. It adopts the working principle of a Venturi tube. The seat air guide hole 1020, the air guide tube 6, and the cap air guide hole 910 are concentric.

[0043] The specific working process of the air outlet assembly of the sandblasting powder tank: The air guide pipe 6, as a venturi tube, has a narrowed head and a middle tube. When the external air source enters the metal base 10 of the powder tank through the air inlet 1010, and then enters the air guide pipe 6 through the air guide hole 1020 of the base and the air guide hole 910 of the cap, due to the characteristics of the venturi tube, the airflow speed in the air guide pipe 6 increases and the pressure decreases, forming a negative pressure inside the air guide pipe 6. Under the action of the negative pressure, the powder and air are drawn up from the side, and through the sand outlet guide rod cap 3, the sand is carried through the sand guide pipe 5 of the powder tank and enters the main unit, realizing the mixing of sand and air.

[0044] For fine particles such as sand around 14 micrometers and glycine around 25 micrometers, they are prone to agglomeration due to electrostatic adsorption caused by mutual friction. This leads to the problem of fine sand clumping at the bottom of the powder tank sand funnel 8 and being unable to be driven by negative pressure. In this utility model, the negative pressure formed by the Venturi tube and the reasonable airflow direction design disperse the agglomerated fine sand, solving the problem of fine sand not being able to be lifted. It can better suck up and mix and transport fine sand. At the same time, the structural design of the powder tank sand guide pipe 5 and the sand discharge guide rod cap 3 helps the sand to flow out smoothly and mix with air, reducing the impact of fine sand agglomeration on sandblasting operations and avoiding the situation of no sand being discharged.

Claims

1. A sandblasting powder canister venting assembly, characterized in that, It includes an air outlet component (9), a powder can metal base (10), and an air guide pipe (6). The powder can metal base (10) is provided with a can air inlet (1010) for connecting to an external air source and a seat air guide hole (1020) connected to the can air inlet (1010). The air outlet component (9) includes a cap body and a support structure. The support structure is located on the top of the cap body. The lower end of the air guide pipe (6) is installed on the support structure. The cap body is provided with a cap air guide hole (910) and a cap side air outlet hole (920) connected to each other. The cap air guide hole (910) is connected to the air guide hole (1020).

2. The sandblasting powder tank exhaust assembly according to claim 1, characterized in that, The air duct (6) is a tapered tubular structure with a lower diameter smaller than the upper diameter.

3. The sandblasting powder tank exhaust assembly according to claim 1, characterized in that, The vent holes (920) on the side of the cap are evenly distributed on the side of the cap body.

4. The sandblasting powder tank exhaust assembly according to claim 1, characterized in that, The seat air guide hole (1020), air guide tube (6) and cap air guide hole (910) are concentric.

5. The sandblasting powder tank exhaust assembly according to claim 1, characterized in that, The support structure consists of several hat brackets (930) fixedly installed on the top of the hat body.

6. The sandblasting powder tank exhaust assembly according to claim 5, characterized in that, Three cap supports (930) are fixedly installed on the top of the cap body. The three cap supports (930) are evenly distributed around the axis of the air duct (6).

7. The sandblasting powder tank exhaust assembly according to claim 6, characterized in that, The top of the cap bracket (930) is provided with a snap that matches the bottom shape of the air duct (6).

8. A sandblasting powder tank, comprising a powder tank cover (1), a powder tank guide pipe (5), a powder tank body (7), a powder tank sand funnel (8), and a powder tank lower fixing cover (12), characterized in that, It also includes the sandblasting powder tank venting assembly according to any one of claims 1-7, wherein the venting hole (920) on the cap side is located at the bottom of the powder tank sand funnel (8).

9. A sandblasting powder canister according to claim 8, characterized in that, The powder tank sand guide pipe (5) passes through the air guide pipe (6), the cap air guide hole (910) and the seat air guide hole (1020), with the two ends of the powder tank sand guide pipe (5) located on the outside of the air guide pipe (6) and the seat air guide hole (1020), respectively.

10. A sandblasting powder canister according to claim 9, characterized in that, The top of the sand guide pipe (5) of the powder tank is provided with a sand discharge guide rod cap (3). The sand discharge guide rod cap (3) consists of a guide rod part (310) and a cap part (320). A sand discharge hole (311) is provided in the guide rod part (310), and a sand inlet hole (321) communicating with the sand discharge hole (311) is provided in the cap part (320).

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