Sand blasting powder tank flow guide 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 flow guide subassembly and sand blasting powder tank, including flow guide cone, flow guide cone includes flow guide cone body, gas passage is formed between air pipe and flow guide cone, and the bottom of flow guide cone body is provided with cone body. The flow guide cone bottom cone body of the sand blasting powder tank flow guide subassembly and sand blasting powder tank is optimized by angle, can be with airflow impact force to scatter small sand blasting powder particles that easily conglomeration, solve the problem of caking, improve sanding stability uniformity, the spiral groove or protrusion on its body can improve airflow distribution, improve conveying efficiency;The cooperation structure of metal seat locking cap and flow guide cone enhances installation flexibility and stability, can adapt to different equipment needs, overall optimizes the sand blasting powder tank performance, solves the sanding problem, improves the treatment effect and use experience of sand blasting and scaling equipment.

Description

Technical Field

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

[0002] In the field of dental treatment, air polishing equipment is an important tool for efficiently cleaning tooth surfaces and preventing periodontal disease. Its working principle mainly relies on compressed air to drive air polishing powder (the main components of which include sodium bicarbonate, glycine, or erythritol, etc.) to be sprayed onto the tooth surface, where it mixes with a liquid medium (such as water). Through physical impact, it effectively removes plaque, soft deposits, early tartar, tobacco stains, and tea stains from the tooth surface, thereby maintaining dental health.

[0003] In this process, the performance of the sandblasting powder tank, as a key component for storing and transporting sandblasting powder, directly affects the sandblasting cleaning effect.

[0004] Traditional sandblasting powder tanks are often designed using the Venturi principle, which utilizes the Venturi effect by incorporating a narrow head and intermediate tube within the pipe. This causes the airflow to accelerate and decrease in pressure as it passes through the narrow section, creating a negative pressure zone inside the pipe. This negative pressure zone is used to draw in sandblasting powder, which is then mixed with air and transported through the pipe to the nozzle for sandblasting. However, in practical applications, especially when processing fine-sized (e.g., 14-micron sand and 25-micron glycine) and low-density sandblasting powder, the powder tends to agglomerate due to electrostatic adsorption caused by inter-particle friction. This agglomeration leads to the fine sand clumping at the bottom of the powder tank, making it difficult for the negative pressure airflow to carry it away. Consequently, problems such as no sand output or uneven sand output occur, severely affecting the normal operation and treatment effect of the sandblasting equipment.

[0005] Therefore, this utility model aims to provide an improved sandblasting powder tank guide component and sandblasting powder tank, which solves the problems of fine sand agglomeration and unstable sand output in the prior art, and improves the overall performance and user experience of sandblasting cleaning equipment. Utility Model Content

[0006] To address the aforementioned issues, this invention provides a sandblasting powder canister guide assembly and a sandblasting powder canister. The bottom cone of the guide cone in both the assembly and the canister is angle-optimized, enabling the airflow impact force to disperse easily agglomerated fine sandblasting powder particles, thus solving the clumping problem and improving the stability and uniformity of the sand output. The spiral grooves or protrusions on the main body improve airflow distribution and enhance conveying efficiency. The mating structure between the metal seat locking cap and the guide cone enhances installation flexibility and stability, adapting to different equipment requirements. Overall, the performance of the sandblasting powder canister is optimized, solving the sand output problem and improving the treatment effect and user experience of sandblasting cleaning equipment.

[0007] The technical solution of this utility model is as follows:

[0008] A sandblasting powder tank flow guiding assembly includes a flow guiding cone, the flow guiding cone includes a flow guiding cone body, an air passage is formed between the air guiding pipe and the flow guiding cone, and a cone is provided at the bottom of the flow guiding cone body.

[0009] Preferably, the top of the guide cone body is also provided with a cone.

[0010] Furthermore, the angle of the cone's inclined plane is 10-40°.

[0011] Furthermore, the cross-sectional area of ​​the vent is 6-14 mm².

[0012] Furthermore, the sandblasting powder tank guide assembly also includes a metal seat locking cap, which consists of a cap body and a support structure. The support structure is located on the top of the cap body, and the guide cone body is provided with legs that cooperate with the support structure.

[0013] Furthermore, the support structure is a cap bracket, with a locking platform at the top of the cap bracket and a locking groove at the bottom of the support leg that mates with the locking platform.

[0014] Furthermore, a slot is provided at the bottom of the air duct to mate with the top of the outrigger.

[0015] Optionally, the exterior of the guide cone body is provided with intermittent spiral grooves.

[0016] Optionally, the exterior of the guide cone body is provided with discontinuous spiral protrusions.

[0017] Optionally, a conical air guide hole is provided at the center of the guide cone body.

[0018] A sandblasting powder canister, including a sandblasting powder canister flow guide assembly.

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

[0020] 1. This utility model discloses a sandblasting powder can guide assembly and a sandblasting powder can. The sandblasting powder can guide assembly and sandblasting powder can solve the problem of fine sand agglomeration. The cone structure set at the bottom of the guide cone can form an impact force when the airflow passes through, effectively breaking up the sandblasting powder particles with small particle size and low density that are prone to agglomeration due to electrostatic adsorption, preventing fine sand from clumping at the bottom of the sandblasting powder can, and improving the stability and uniformity of the sand output.

[0021] 2. The present invention discloses a sandblasting powder canister flow guide assembly and a sandblasting powder canister. The sandblasting powder canister flow guide assembly and the sandblasting powder canister improve the airflow distribution. The discontinuous spiral grooves or protrusions provided on the flow guide cone body can further improve the airflow distribution, improve the conveying efficiency of sandblasting powder, and make the sandblasting powder mix more smoothly with the air and be conveyed to the nozzle.

[0022] 3. This utility model discloses a sandblasting powder canister flow guide assembly and a sandblasting powder canister. The sandblasting powder canister flow guide assembly and sandblasting powder canister enhance installation flexibility and stability. The metal seat locking cap consists of a cap body and a support structure. The support structure is a cap bracket with a locking platform at the top. The flow guide cone body is provided with legs that cooperate with the support structure. The bottom of the legs is provided with a locking groove that cooperates with the locking platform. The bottom of the air guide pipe is provided with a slot that cooperates with the top of the legs. This design makes the flow guide cone structure flexible and adjustable, which can adapt to the installation requirements of different brands and models of sandblasting cleaning equipment with different sand pipe and air pipe routing designs. At the same time, it ensures that the flow guide cone is stably installed in the air guide pipe, effectively controls the distance between the air outlet of the air guide pipe and a specific end face, and improves sand blowing stability.

[0023] 4. The present invention discloses a sandblasting powder tank flow guide component and a sandblasting powder tank. The sandblasting powder tank flow guide component and the sandblasting powder tank improve the performance of sandblasting cleaning equipment. By optimizing the structural design of the flow guide cone and its installation method, the problems of fine sand agglomeration and unstable sand output in the prior art are solved, thereby improving the overall performance of the sandblasting cleaning equipment, ensuring its normal use and treatment effect, and enhancing the user experience. Attached Figure Description

[0024] 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.

[0025] In the attached diagram:

[0026] Figure 1 This is a three-dimensional structural diagram of the guide cone of a sandblasting powder tank guide assembly according to an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 A three-dimensional structural diagram of the first improved structure of the central guide cone;

[0028] Figure 3 for Figure 1 A three-dimensional structural diagram of the second improved structure of the central guide cone;

[0029] Figure 4 for Figure 1 A three-dimensional structural diagram of the third improved structure of the central guide cone;

[0030] Figure 5 This is a three-dimensional structural diagram of a metal seat locking cap of a sandblasting powder tank guide assembly according to an embodiment of the present utility model.

[0031] Figure 6This is a cross-sectional structural diagram of a sandblasting powder tank according to an embodiment of the present utility model;

[0032] Figure 7 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.

[0033] Figure 8 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.

[0034] Figure 9 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.

[0035] The components represented by the various reference numerals in the diagram are:

[0036] 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. Metal seat locking cap, 910. Cap air guide hole, 920. Cap bracket, 10. Powder tank metal seat, 1010. Tank air inlet, 1020. Seat air guide hole, 11. Powder tank locking ring, 12. Powder tank lower fixing cover, 13. Square ring, 14. Guide cone, 1410. Guide cone body, 1411. Cone, 1412. Groove, 1413. Protrusion, 1420. Cone air guide hole, 1430. Support leg, 1431. Slot. Detailed Implementation

[0037] like Figure 6 As shown, the sandblasting powder canister mainly consists of a powder canister cover 1, a powder canister cover sealing gasket 2, a sand discharge guide rod cap 3, a lamp wire cover plate 4, a powder canister sand guide pipe 5, a vent pipe 6, a powder canister body 7, a powder canister sand funnel 8, a metal seat locking cap 9, a powder canister metal seat 10, a powder canister locking ring 11, a powder canister lower fixing cover 12, a square ring 13, and a sandblasting powder canister flow guiding assembly. The sandblasting powder canister flow guiding assembly is installed at the bottom of the vent pipe 6 and mainly includes a flow guiding cone 14 and a matching metal seat locking cap 9.

[0038] Except for the sandblasting powder tank guide assembly, 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 provided, and no further details will be elaborated.

[0039] The powder can lid 1 is located on the top of the powder can body 7 and serves to seal the top of the powder can body 7.

[0040] The powder can lid sealing gasket 2 is placed between the powder can lid 1 and the powder can body 7 for sealing.

[0041] like Figure 7 and Figure 8 As shown, the sand discharge guide rod cap 3 is installed on the top of the sand guide pipe 5 of the powder tank, and 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 communicating with the sand discharge hole 311.

[0042] The lamp wire cover 4 is installed on the outside of the powder tank body 7.

[0043] The sand guide pipe 5 of the powder tank passes through the air guide pipe 6, the cap air guide hole 910, the cone air guide hole 1420 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.

[0044] The bottom of the air duct 6 is provided with a slot that mates with the top of the support leg 1430 of the guide cone 14.

[0045] The powder tank body 7 serves as the main part of the sandblasting powder tank and is used to contain sand for sandblasting.

[0046] The powder container sand funnel 8 is located inside the powder container body 7.

[0047] like Figure 9 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. A square ring 13 for sealing is provided between the powder can metal base 10 and the powder can lower fixed cover 12.

[0048] The powder tank locking ring 11 is used to fix the lower fixed cover 12 of the powder tank to the powder tank body 7.

[0049] The bottom cover 12 of the powder tank is located at the bottom of the powder tank body 7, and serves to seal the bottom of the powder tank body 7 and provide fixed support.

[0050] A square ring 13 is positioned between the powder can metal base 10 and the powder can lower fixed cover 12 for sealing.

[0051] Based on the aforementioned existing technology, this utility model improves the flow guiding component of the sandblasting powder tank, such as... Figure 1 As shown, the guide cone 14 includes a guide cone body 1410, the outer diameter of which is smaller than the inner diameter of the bottom of the air guide pipe 6. Preferably, the cross-sectional area of ​​the air passage formed between the air guide pipe 6 and the guide cone 14 is 6-14 mm². The cone 1411 is disposed at the bottom of the guide cone body 1410. Preferably, as shown... Figure 4As shown, a cone 1411 is also provided on the top of the guide cone body 1410, and the cone slope angle can be in the range of 15-20°. The support leg 1430 is provided on the guide cone body 1410 and cooperates with the support structure of the metal seat locking cap 9. A slot 1431 that cooperates with the locking platform is provided at the bottom of the support leg 1430. The cone air guide hole 1420 is located at the center of the guide cone body 1410.

[0052] like Figure 2 and Figure 3 As shown, the exterior of the guide cone body 1410 is provided with discontinuous spiral grooves 1412 (or discontinuous spiral protrusions 1413).

[0053] like Figure 5 As shown, the metal seat locking cap 9 consists of a cap body and a support structure (cap bracket 920). The support structure is located on the top of the cap body, and a locking platform is provided on the top of the cap bracket 920.

[0054] The working process and working principle of this sandblasting powder tank are as follows:

[0055] Based on the principle of the Venturi tube, which has a narrowed head and a middle tube, the faster the airflow velocity, the lower the pressure. In the device, the airflow flows from the middle, creating a negative pressure. This negative pressure draws the powder and air from the side of the powder tank up, through the cap with the top opening (sand guide rod cap 3), and carries the sand through the middle tube (powder tank sand guide pipe 5) into the main unit, thus achieving the mixing of sand and air.

[0056] Because 14-micron sand and 25-micron glycine particles are small and have low density, they will agglomerate due to electrostatic adsorption caused by mutual friction. As the airflow passes through the middle, the fine sand clumps at the bottom and cannot be driven by negative pressure, resulting in the sand not being able to be lifted. After adding a guide cone 14 to a specific position at the bottom of the air guide pipe 6, when the airflow and fine sand pass through the guide cone 14, the cone 1411 of the guide cone 14 forms an impact, which breaks up the agglomerated fine sand and solves the problem of the fine sand not being able to be lifted.

[0057] The installation method of the flow guide cone 14 is relatively flexible and does not necessarily require a specific structure. As long as it can be installed and connected to the air tube, it is fine. For different products, the center hole is not necessary. For example, some products can make the flow guide cone 14 solid. At the same time, since the sand tube and air tube have different directions for different products, such as EMS air exiting from the cover and Ruifeng sand exiting from the side, the structure of the flow guide cone 14 can be adjusted according to the actual situation.

[0058] The metal seat locking cap 9, through its support structure (cap bracket 920), cooperates with the support leg 1430 of the guide cone 14 to limit the distance between the air outlet of the air duct 6 and a specific end face, which plays a key role in the stability of sand blowing.

[0059] The sandblasting powder canister's flow guide assembly and the bottom cone of the flow guide cone are angle-optimized to break up easily agglomerated fine sandblasting powder particles with airflow impact force, solving the clumping problem and improving the stability and uniformity of sand output. The spiral grooves or protrusions on its body can improve airflow distribution and increase conveying efficiency. The matching structure of the metal seat locking cap and the flow guide cone enhances installation flexibility and stability, can adapt to different equipment needs, optimizes the overall performance of the sandblasting powder canister, solves the sand output problem, and improves the treatment effect and user experience of sandblasting cleaning equipment.

Claims

1. A sandblasting powder tank flow guiding assembly, characterized in that, It includes a guide cone (14), which includes a guide cone body (1410), an air passage is formed between the air pipe (6) and the guide cone (14), and a cone (1411) is provided at the bottom of the guide cone body (1410).

2. The sandblasting powder tank flow guiding assembly according to claim 1, characterized in that, The top of the guide cone body (1410) is also provided with a cone (1411).

3. The sandblasting powder tank guide assembly according to claim 1, characterized in that, The angle of the cone slope of the cone (1411) is 10-40°.

4. The sandblasting powder tank guide assembly according to claim 1, characterized in that, The cross-sectional area of ​​the air passage is 6-14 mm².

5. A sandblasting powder tank flow guiding assembly according to claim 1, characterized in that, It also includes a metal seat locking cap (9), which consists of a cap body and a support structure. The support structure is set on the top of the cap body, and a support leg (1430) that cooperates with the support structure is provided on the guide cone body (1410).

6. A sandblasting powder tank flow guiding assembly according to claim 5, characterized in that, The support structure is a cap bracket (920), with a locking platform on the top of the cap bracket (920) and a locking groove (1431) that cooperates with the locking platform on the bottom of the support leg (1430).

7. A sandblasting powder tank flow guiding assembly according to claim 5, characterized in that, A slot is provided at the bottom of the air duct (6) to mate with the top of the support leg (1430).

8. A sandblasting powder tank flow guiding assembly according to claim 1, characterized in that, The exterior of the guide cone body (1410) is provided with discontinuous spiral grooves (1412) or spiral protrusions (1413).

9. A sandblasting powder tank flow guiding assembly according to claim 1, characterized in that, The center of the guide cone body (1410) is provided with a cone-shaped air guide hole (1420).

10. A sandblasting powder canister, characterized in that, Includes the sandblasting powder tank guide assembly as described in any one of claims 1-8.

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