CN216090851U - Hand-held sand blasting gun nozzle structure - Google Patents

Abstract

The utility model relates to a spray head structure of a handheld sand blasting gun, which comprises a spray head main body and a spray nozzle, wherein the front end of the spray head main body is bent towards the side surface according to a preset angle and is provided with a first groove, and the bottom of the first groove is provided with a second groove; the nozzle comprises a connecting block, a convex block and a tip, the convex block and the tip are respectively arranged at two ends of the connecting block, the outer wall of the connecting block is in rotary sealing connection with the inner wall of the first groove, and the outer wall of the convex block is in rotary sealing connection with the inner wall of the second groove. The utility model has the beneficial effects that: the spray head structure of the hand-held sand-blasting gun can adjust the direction of the spray nozzle in all directions by rotating the spray nozzle, is convenient for cleaning dead angles of tooth slits and periodontal pockets, and is beneficial to all-around treatment; simultaneously through first sealing washer, can separate the material that first passageway flowed into in the first runner with the material that flows into in the annular groove by the second passageway mutually, effectively avoid the stifled sand problem of infiltration, through the second sealing washer, can prevent that the material that the second passageway flowed into in the annular groove from leaking.

Description

Hand-held sand blasting gun nozzle structure

Technical Field

The utility model relates to the technical field of handheld sand blasting guns, in particular to a spray head structure of a handheld sand blasting gun.

Background

At present, compressed gas (usually air) is generally utilized to lift treatment sand powder to be sprayed to the surface of teeth and is mixed with liquid medium (usually water) sprayed together to play a role in cleaning the surface of the teeth and the subgingival periodontal pocket, in order to realize the tooth cleaning effect, a spray head capable of spraying gas sand powder mixture and water is needed, because the used sand powder is usually water-soluble, in order to prevent the blockage situation, an air path (containing sand powder) and a water path must be strictly separated, the air path and the water path can be mixed on the surface of the teeth until the air path is sprayed out from a nozzle of the spray head, the air path and the air path of the water path are parallel after the existing spray head is assembled, but the direction of the nozzle cannot be rotated after the existing spray head is assembled, so that dead corners of teeth and periodontal pockets cannot be conveniently cleaned, and the comprehensive treatment is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a nozzle structure of a handheld sand blasting gun, and overcomes the defects of the prior art.

The technical scheme for solving the technical problems is as follows: a spray head structure of a handheld sand blasting gun comprises a spray head main body and a spray nozzle, wherein the front end of the spray head main body is bent towards the side surface according to a preset angle and is provided with a first groove, and the bottom of the first groove is provided with a second groove; the nozzle includes connecting block, lug and sharp mouth, the lug with sharp mouth is established respectively the connecting block both ends, the connecting block outer wall with first recess inner wall rotates sealing connection, the lug outer wall with second recess inner wall rotates sealing connection, the nozzle center is equipped with first runner, be equipped with in the shower nozzle main part with the first passageway of first runner intercommunication, the connecting block is close to the one end of lug is equipped with the annular groove, be equipped with in the shower nozzle main part with the second passageway of annular groove intercommunication, be equipped with in the nozzle with the second runner of annular groove intercommunication.

The utility model has the beneficial effects that: the spray head structure of the hand-held sand-blasting gun can adjust the direction of the spray nozzle in all directions by rotating the spray nozzle, is convenient for cleaning dead angles of tooth slits and periodontal pockets, and is beneficial to all-around treatment; simultaneously through first sealing washer, can separate the material that first passageway flowed into in the first runner with the material that flows into in the annular groove by the second passageway mutually, effectively avoid the stifled sand problem of infiltration, through the second sealing washer, can prevent that the material that the second passageway flowed into in the annular groove from leaking.

Further: the connecting block outer wall is equipped with first sealing washer, first recess inner wall be equipped with first sealing washer matched with ring channel, the connecting block outer wall with first recess inner wall passes through first sealing washer with the rotation sealing connection is realized to first ring channel.

The beneficial effects of the further scheme are as follows: can with the connecting block outer wall through first sealing washer and first ring channel with first recess inner wall rotates sealing connection, simple structure, reliable.

Further: the outer wall of the projection is provided with a second sealing ring, the inner wall of the second groove is provided with a second annular groove matched with the second sealing ring, and the outer wall of the projection and the inner wall of the second groove are connected in a rotating and sealing mode through the second sealing ring and the second annular groove.

The beneficial effects of the further scheme are as follows: can with the lug outer wall through second sealing washer and second annular groove with second recess inner wall rotates sealing connection, simple structure, reliable.

Further: one end of the connecting block, which is close to the sharp mouth, extends out of the first groove and the outer wall of the first groove are uniformly provided with anti-slip ribs.

The beneficial effects of the further scheme are as follows: the nozzle can be conveniently rotated by the anti-slip ribs.

Further: one end of the sharp nozzle, which is far away from the connecting block, is of a flat structure.

The beneficial effects of the further scheme are as follows: is more beneficial to leading the nozzle to go deep into the gum.

Drawings

FIG. 1 is a schematic structural diagram of a hand-held sand blasting gun head according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2;

in the figure: 1. a nozzle body; 11. a first groove; 111. a first annular groove; 12. a second groove; 121. A second annular groove; 13. a first channel; 14. a second channel; 2. a nozzle; 21. connecting blocks; 211. An annular groove; 212. a first seal ring; 213. anti-slip ribs; 22. a protrusion; 221. a second seal ring; 23. a sharp nozzle; 24. a first flow passage; 25. a second flow passage.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1 to 3, the present embodiment relates to a spray head structure of a hand-held sand blasting gun, comprising a spray head main body 1 and a spray nozzle 2, wherein the front end of the spray head main body 1 is bent towards the side surface according to a preset angle and is provided with a first groove 11, the preset angle is 90 degrees to 120 degrees, and the bottom of the first groove 11 is provided with a second groove 12; the nozzle 2 comprises a connecting block 21, a convex block 22 and a sharp nozzle 23, the convex block 22 and the sharp nozzle 23 are respectively arranged at two ends of the connecting block 21, the outer wall of the connecting block 21 is connected with the inner wall of a first groove 11 in a rotating and sealing manner, the outer wall of the convex block 22 is connected with the inner wall of a second groove 12 in a rotating and sealing manner, a first flow channel 24 is arranged at the center of the nozzle 2, a first channel 13 communicated with the first flow channel 24 is arranged in the nozzle body 1, an annular groove 211 is arranged at one end, close to the convex block 22, of the connecting block 21, a second channel 14 communicated with the annular groove 211 is arranged in the nozzle body 1, and a second flow channel 25 communicated with the annular groove 211 is arranged in the nozzle 2.

When the gas-sand-powder mixed tooth cleaner is used, the gas-sand-powder mixture can be sprayed out through the first channel 13 and the first flow channel 24, the water can be sprayed out through the second channel 14, the annular groove 211 and the second flow channel 25, teeth are cleaned, and meanwhile, the orientation of the first flow channel 24 and the orientation of the second flow channel 25 can be adjusted through rotating the nozzle 2, so that dead angles of tooth gaps and periodontal pockets can be conveniently cleaned and treated.

Example 2

This example relates to a shower nozzle structure of handheld sand blasting rifle, and on embodiment 1's basis, connecting block 21 outer wall is equipped with first sealing washer 212, and first sealing washer 212 adopts silica gel to make, and first recess 11 inner wall is equipped with the first ring channel 111 with first sealing washer 212 matched with, and connecting block 21 outer wall and first recess 11 inner wall realize rotating seal with first ring channel 111 through first sealing washer 212 and are connected, simple structure, reliably, simple to operate simultaneously.

Example 3

This example relates to a shower nozzle structure of handheld sand blasting rifle, on the basis of embodiment 1-2, the lug 22 outer wall is equipped with second sealing washer 221, and second sealing washer 221 adopts silica gel to make, and second recess 12 inner wall is equipped with the second annular groove 121 with second sealing washer 221 matched with, and lug 22 outer wall and second recess 12 inner wall realize rotating seal through second sealing washer 221 and second annular groove 121 and are connected, simple structure, reliable, simple to operate simultaneously.

Example 4

The embodiment relates to a spray head structure of a handheld sand-blasting gun, on the basis of the embodiment 1-3, one end of a connecting block 21, which is close to a sharp mouth 23, extends out of a first groove 11, and the outer wall of the connecting block is uniformly provided with anti-slip ribs 213, wherein the anti-slip ribs 213 can facilitate the rotation of a spray nozzle 2.

Example 5

The embodiment relates to a spray head structure of a handheld sand-blasting gun, and on the basis of the embodiments 1-4, one end of a sharp nozzle 23, which is far away from a connecting block 21, is of a flat structure, so that the nozzle 2 can be more favorably inserted into the gum.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (5)

1. The spray head structure of the handheld sand-blasting gun is characterized by comprising a spray head main body (1) and a spray nozzle (2), wherein the front end of the spray head main body (1) is bent towards the side surface according to a preset angle and is provided with a first groove (11), and the bottom of the first groove (11) is provided with a second groove (12); the nozzle (2) comprises a connecting block (21), a convex block (22) and a sharp nozzle (23), the convex block (22) and the sharp mouth (23) are respectively arranged at two ends of the connecting block (21), the outer wall of the connecting block (21) is in rotary sealing connection with the inner wall of the first groove (11), the outer wall of the convex block (22) is connected with the inner wall of the second groove (12) in a rotating and sealing way, a first flow passage (24) is arranged at the center of the nozzle (2), a first channel (13) communicated with the first flow passage (24) is arranged in the sprayer body (1), one end of the connecting block (21) close to the convex block (22) is provided with an annular groove (211), a second channel (14) communicated with the annular groove (211) is arranged in the spray head main body (1), and a second flow passage (25) communicated with the annular groove (211) is arranged in the nozzle (2).

2. The spray head structure of a hand-held sand-blasting gun according to claim 1, characterized in that the outer wall of the connecting block (21) is provided with a first sealing ring (212), the inner wall of the first groove (11) is provided with a first annular groove (111) matched with the first sealing ring (212), and the outer wall of the connecting block (21) and the inner wall of the first groove (11) are in rotary sealing connection with the first annular groove (111) through the first sealing ring (212).

3. The nozzle structure of a hand-held sand blasting gun according to claim 1, characterized in that the outer wall of the projection (22) is provided with a second sealing ring (221), the inner wall of the second groove (12) is provided with a second annular groove (121) matched with the second sealing ring (221), and the outer wall of the projection (22) and the inner wall of the second groove (12) are in rotary sealing connection with the second annular groove (121) through the second sealing ring (221).

4. The spray head structure of a hand-held sand-blasting gun according to claim 1, characterized in that one end of the connecting block (21) close to the tip (23) extends out of the first groove (11) and the outer wall is uniformly provided with anti-slip ribs (213).

5. The structure of a hand-held sand-blasting gun head according to claim 1, characterized in that the tip (23) is of flat construction at the end remote from the connecting piece (21).

Images