Sand blasting handle convenient to dredge

Abstract

The utility model belongs to the technical field of dental diagnosis and treatment, and particularly relates to a sand blasting handle convenient to dredge, which comprises a handle body, a spray head assembly and a connecting assembly, the front end of the handle body is connected with the spray head assembly, the rear end of the handle body is connected with the connecting assembly, and a first connecting piece is arranged at the rear end of the spray head assembly. A central connecting pipe and a second connecting piece are arranged in the handle body, and the first connecting piece is in threaded connection with the second connecting piece; according to the sand blasting handle disclosed by the utility model, the nozzle assembly and the handle body are detachably connected, and the length of the first gas path in the nozzle assembly is shorter, so that the nozzle assembly can be quickly detached and the first gas path can be cleaned or the nozzle assembly can be replaced when the nozzle assembly is blocked, and the use efficiency and convenience of the sand blasting handle are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dental diagnosis and treatment, and particularly relates to a sandblasting handle which is convenient for dredging. Background Art

[0002] Sandblasting is a commonly used technique in the field of oral prevention and treatment, and the implementation of cleaning is inseparable from sandblasting equipment. Usually, sandblasting equipment uses an external air source to provide driving force. Compressed air flows through the sand powder tank filled with dental sandblasting powder, and carries a part of the sand powder through the pipe of the sandblasting equipment, and is finally sprayed out through the handle. The sprayed sand powder impacts the surface of the teeth, thereby removing plaque, soft scale, etc. attached to the surface of the teeth, achieving the purpose of cleaning. Water spraying is also required at the same time as sandblasting. The purpose of water spraying is to suppress the sprayed sand powder from flying into the environment, and at the same time dissolve the sand powder sprayed into the mouth.

[0003] Dental sandblasting powder is usually made of soluble materials such as sodium bicarbonate, glycine, erythritol, etc. Such materials are very easy to agglomerate due to moisture. The agglomerated sand powder is likely to cause blockage in the handle pipe when flowing through the sandblasting handle. Increasing the inner diameter of the pipe can significantly reduce the probability of blockage. However, due to the size of the sandblasting handle (because it needs to be inserted into the mouth and cannot block the surgical field of view), the inner diameter of the internal pipe is unlikely to be designed too large. Therefore, in actual use, the handle will still be clogged. The method to deal with blockage is to insert a fine needle into the handle pipe to break up the agglomerated sand powder, and then blow away the sand powder with a high-pressure air gun or soak it in hot water to dissolve the sand powder. Due to the design of the size and length, it is difficult to clean the sand powder accumulated inside.

[0004] Based on this, it is necessary to improve the defects in the existing technology to overcome the shortcomings in practical applications. Utility Model Content

[0005] Based on the above-mentioned shortcomings and deficiencies in the prior art, one of the purposes of the present invention is to at least solve one or more of the above-mentioned problems in the prior art. In other words, one of the purposes of the present invention is to provide a sandblasting handle that is easy to unclog and meets one or more of the above-mentioned needs.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

[0007] The utility model provides a sandblasting handle that is convenient for dredging, comprising a handle body, a nozzle assembly and a connecting assembly, wherein the front end of the handle body is connected to the nozzle assembly, the rear end of the handle body is connected to the connecting assembly, the rear end of the nozzle assembly is provided with a first connecting piece, the interior of the handle body is provided with a central connecting pipe and a second connecting piece, and the first connecting piece is threadedly connected to the second connecting piece.

[0008] As a preferred solution, the nozzle assembly includes a nozzle, a nozzle connecting pipe and a nozzle connecting piece, one end of the nozzle connecting pipe is connected to the nozzle, and the other end of the nozzle connecting pipe is connected to the nozzle connecting piece.

[0009] As a preferred solution, the nozzle connecting pipe is bent, and the bending angle is set to 0-60°.

[0010] As a preferred solution, a groove is provided on the nozzle connecting pipe, and a protrusion is provided on the nozzle, and the protrusion is snap-fitted with the groove.

[0011] As a preferred solution, a sealing ring is provided on the first connecting member, and the sealing ring is tightly matched with the second connecting member.

[0012] As a preferred solution, the spray head assembly is detachably connected to the handle body, and the handle body is detachably connected to the connecting assembly.

[0013] As a preferred solution, the rear end of the handle body is provided with a third connecting piece, the connecting assembly is provided with a sealing sleeve and a fourth connecting piece, the sealing sleeve is connected to the central connecting pipe, the fourth connecting piece is connected to the third connecting piece

[0014] As a preferred embodiment, a first air circuit and a first water circuit are provided inside the nozzle assembly, a second water circuit is provided inside the handle body, and a second air circuit is provided inside the connecting assembly. The first air circuit is connected to the second air circuit, and the first water circuit is connected to the second water circuit.

[0015] As a preferred solution, the handle body is provided with a handle shell, the central connecting tube and the second connecting member are built into the handle shell, and the central connecting tube is provided inside the second connecting member.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The utility model provides a sandblasting handle which is easy to unblock. The nozzle assembly and the handle body are detachably connected, and the length of the first air path in the nozzle assembly is designed to be shorter. When the nozzle assembly is blocked, the first air path can be quickly disassembled and cleaned, or the nozzle assembly can be replaced, which greatly improves the efficiency and convenience of using the sandblasting handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0019] Figure 1 This is a disassembly diagram of a sandblasting handle for dredging according to an embodiment of the utility model;

[0020] Figure 2 This is a cross-sectional view of a sandblasting handle that facilitates unclogging according to an embodiment of the utility model;

[0021] Figure 3 is a cross-sectional view of a nozzle assembly according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic structural diagram of a nozzle according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic structural diagram of a nozzle connecting pipe according to an embodiment of the present invention;

[0024] In the figure: 1 nozzle assembly, 11 nozzle, 111 protrusion, 12 nozzle connecting pipe, 121 groove, 13 nozzle connecting part, 14 first connecting part, 15 sealing ring, 16 first air path, 17 first water path, 18 water inlet, 2 handle body, 21 second connecting part, 22 center connecting pipe, 23 handle housing, 24 third connecting part, 25 second water path, 3 connecting assembly, 31 fourth connecting part, 32 sealing sleeve, 33 sealing ring, 34 second air path. DETAILED DESCRIPTION

[0025] To more clearly illustrate the embodiments of the present application, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0026] In the description of the embodiments of this application, terms such as "upper," "lower," "front," and "rear" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the application. Furthermore, terms such as "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0027] According to some embodiments of the present application, Figures 1 to 5As shown, a sandblasting handle that is easy to dredge is provided, including a handle body 2, a nozzle assembly 1 and a connecting assembly 3. The front end of the handle body 2 is connected to the nozzle assembly 1, and the rear end of the handle body 2 is connected to the connecting assembly 3. The rear end of the nozzle assembly 1 is provided with a first connecting member 14, and the interior of the handle body 2 is provided with a central connecting pipe 22 and a second connecting member 21. The first connecting member 14 is threadedly connected to the second connecting member 21.

[0028] Specifically, the nozzle assembly 1 includes a nozzle 11 , a nozzle connecting pipe 12 and a nozzle connecting piece 13 . One end of the nozzle connecting pipe 12 is connected to the nozzle 11 , and the other end of the nozzle connecting pipe 12 is connected to the nozzle connecting piece 13 .

[0029] Furthermore, the nozzle connecting tube is a tubular structure with uniform wall thickness (except for the connection at both ends), which can be processed by turning and then bending a stainless steel tube. The nozzle connecting tube 12 is bent, and the bending angle is set to 0 to 60 degrees. The specific angle can be set according to the actual application. The bending angle setting of the nozzle connecting tube can serve as a transition between the nozzle and the nozzle connector. Therefore, the angle between the nozzle axis and the nozzle main body axis can be changed from 90 to 150 degrees (i.e., angle A) to meet different clinical needs.

[0030] Furthermore, the nozzle connecting tube 12 is provided with a groove, and the nozzle 11 is provided with a protrusion, which engages with the groove. This engagement of the protrusion and the groove enables a detachable connection between the nozzle connecting tube and the nozzle, ensuring convenient replacement and precise positioning after connection. It should be noted that the nozzle connecting tube and the nozzle can also be connected by welding, gluing, threading, or other methods.

[0031] Furthermore, a water inlet 18 is provided on the first connecting member 14, the inner end of the water inlet 18 is connected to the first water channel 17 on the nozzle assembly 1, and the outer end of the water inlet 18 is connected to the second water channel 25 on the handle body 2, for transferring water flow to the nozzle.

[0032] Furthermore, a sealing ring 15 is provided on the first connecting member 14 , and the sealing ring 15 is tightly matched with the second connecting member 21 , thereby ensuring the sealing of the connection and preventing leakage of the internal air and water channels.

[0033] Furthermore, the nozzle assembly 1 is detachably connected to the handle body 2, and the handle body 2 is detachably connected to the connecting assembly 3. When the air passage is blocked, the internal passage can be easily unblocked by detaching and detaching the handle body 2 and the nozzle assembly 1.

[0034] In some embodiments of the present application, a third connecting member 24 is provided at the rear end of the handle body 2, and the connecting assembly 3 is provided with a sealing sleeve 32 and a fourth connecting member 31, the sealing sleeve 32 is connected to the central connecting tube 22, and the fourth connecting member 31 is connected to the third connecting member 24.

[0035] In some embodiments of the present application, a first air circuit 16 and a first water circuit 17 are provided inside the nozzle assembly 1, a second water circuit 25 is provided inside the handle body 2, and a second air circuit 34 is provided inside the connecting assembly 2. The first air circuit 16 is connected to the second air circuit 25, and the first water circuit 17 is connected to the second water circuit 26. The first air circuit 16 and the first water circuit 17 are coaxially arranged, and the first water circuit 17 is located on the outside of the first air circuit 16.

[0036] Furthermore, the handle body 2 is provided with a handle shell 23 , the central connecting tube 22 and the second connecting member 21 are built into the handle shell 23 , and the central connecting tube 22 is provided inside the second connecting member 21 .

[0037] After the sandblasting handle has been used for a certain period of time, the first air path of the nozzle assembly will be blocked due to the accumulation of sand powder. After the blockage, it is necessary to use a fine needle to insert into the first air path to break up the agglomerated sand powder, and then blow away the sand powder with a high-pressure air gun or soak it in hot water to dissolve the sand powder.

[0038] Since the nozzle assembly and the handle body are detachable, and the length of the first air path in the nozzle assembly is shorter, it is easier to clear the first air path, thereby improving work efficiency. At the same time, the inner diameter of the central connecting pipe is larger than the inner diameter of the air path, so it is less likely to be blocked and is also easier to clear.

[0039] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0040] The above description is only a detailed description of the preferred embodiments and principles of the present application. For ordinary technicians in this field, there may be changes in the specific implementation methods based on the ideas provided by this application, and these changes should also be regarded as the scope of protection of this application.

Claims

1. A sandblasting handle that is easy to dredge, characterized in that: It includes a handle body, a nozzle assembly and a connecting assembly. The front end of the handle body is connected to the nozzle assembly, and the rear end of the handle body is connected to the connecting assembly. The rear end of the nozzle assembly is provided with a first connecting piece, and the interior of the handle body is provided with a central connecting pipe and a second connecting piece. The first connecting piece is threadedly connected to the second connecting piece.

2. A sandblasting handle for dredging according to claim 1, characterized in that: The nozzle assembly includes a nozzle, a nozzle connecting pipe and a nozzle connecting piece. One end of the nozzle connecting pipe is connected to the nozzle, and the other end of the nozzle connecting pipe is connected to the nozzle connecting piece.

3. The sandblasting handle for dredging according to claim 2, characterized in that: The nozzle connecting pipe is bent, and the bending angle is set to 0-60 degrees.

4. The sandblasting handle for dredging according to claim 2, characterized in that: The nozzle connecting pipe is provided with a groove, and the nozzle is provided with a protrusion, and the protrusion is engaged with the groove.

5. The sandblasting handle for dredging according to claim 1, characterized in that: A sealing ring is provided on the first connecting member, and the sealing ring is tightly matched with the second connecting member.

6. The sandblasting handle for dredging according to claim 1, characterized in that: The spray head assembly is detachably connected to the handle body, and the handle body is detachably connected to the connecting assembly.

7. The sandblasting handle for dredging according to claim 1, characterized in that: A third connecting piece is provided at the rear end of the handle body, and the connecting assembly is provided with a sealing sleeve and a fourth connecting piece. The sealing sleeve is connected to the central connecting pipe, and the fourth connecting piece is connected to the third connecting piece.

8. The sandblasting handle for dredging according to claim 1, characterized in that: A first air circuit and a first water circuit are provided inside the spray head assembly, a second water circuit is provided inside the handle body, and a second air circuit is provided inside the connecting assembly. The first air circuit is connected to the second air circuit, and the first water circuit is connected to the second water circuit.

9. The sandblasting handle for dredging according to claim 1, characterized in that: The handle body is provided with a handle shell, the central connecting tube and the second connecting member are built into the handle shell, and the central connecting tube is arranged inside the second connecting member.

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