Pneumatic generator with shell structure

Abstract

The utility model discloses a pneumatic generator with a shell structure, which relates to the technical field of pneumatic generators and comprises a generator body, an external shell is arranged outside the generator body and comprises a shell structure, one end of the shell structure is provided with an air port, the other end of the shell structure is provided with an end cover, and the shell structure is provided with an air inlet. A second air port is formed in one side of the end cover, the shell structure and the end cover are connected through a sealing structure, and the sealing structure comprises a plurality of sealing grooves formed in the inner wall of the outer shell. The sealing structure is arranged between the shell structure and the end cover, the sealing structure comprises the multiple sealing grooves and the sealing rings in use, the sealing effect is good in use, the multiple sealing rings are connected through the connecting pads, stability is high, the sealing rings are not prone to being separated from the sealing grooves, and therefore the sealing effect between the shell structure and the end cover is good. And the using effect of the device is effectively improved, and the practicability of the device is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pneumatic generator, concretely is a kind of pneumatic generator with shell structure. BACKGROUND

[0002] Dental handpiece is a commonly used oral medical instrument, is used to drill, cut, polish, polish and so on to the tooth of patient, since working area is oral cavity interior, therefore, the working area needs to be illuminated, currently, two ways are generally used, one is to illuminate by external light source, this way needs to be connected with illumination device, increases operation procedure, is inconvenient to use, and connected illumination device is easy to block vision, and the operation of dental handpiece is affected;Another way is to set light source in dental handpiece, this way is generally applied in high-speed dental handpiece, the head of high-speed dental handpiece is provided with high-speed turbine, and high-speed turbine is driven to rotate by high-pressure gas, when the light source is needed to be built-in, generally, pneumatic generator and lamp body are set in dental handpiece, high-pressure air drives generator to rotate and generates electricity, and then power supply is provided for lamp body to make it emit light and illuminate.

[0003] In the utility model with patent no. CN201593450U, a kind of airflow generator in pipeline and dental handpiece using the generator are presented, after studying prior art, the patent finds that the installation sealing of the shell of the existing dental handpiece pneumatic generator is not good, especially the risk of gas leakage exists at shell end cap. Therefore, a kind of pneumatic generator with shell structure is proposed. UTILITY MODEL CONTENT

[0004] TECHNICAL PROBLEM SOLVED

[0005] The utility model aims at making up for the deficiency of prior art, and provides a kind of pneumatic generator with shell structure.

[0006] TECHNICAL SCHEME

[0007] In order to achieve the above object, the utility model provides the following technical scheme: A pneumatic generator with a shell structure, including generator body, the outside of generator body is provided with external shell, the external shell includes shell structure, one end of shell structure is provided with air port, the other end of shell structure is provided with end cover, the side of end cover is provided with air port no.

[0008] Preferably, the shell structure is internally provided with a cavity for mounting the generator body.

[0009] Preferably, the generator body is externally sleeved with a sealing ring no.

[0010] Preferably, the end cover is internally provided with a mounting hole for the lead wire to penetrate.

[0011] Preferably, the external shell and the end cover are connected through screws.

[0012] Preferably, the end cover is provided with a through hole for mounting the screw.

[0013] Preferably, one side of the external shell is provided with a threaded hole for mounting the screw.

[0014] Advantages:

[0015] Compared with the prior art, the pneumatic generator with a shell structure has the following advantages:

[0016] The utility model discloses a set up the sealing structure between casing structure and end cover, and sealing structure includes multiple sealing grooves and sealing ring when using, and the sealing effect is good when using, and multiple sealing rings are connected through connecting pad, and the stability is high and does not separate from sealing groove, and then can make the sealing effect between casing structure and end cover is good, effectively improve the use effect of the device, enhance the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor under the premise.

[0018] Figure 1 It is the sectional view structure schematic drawing of the utility model;

[0019] Figure 2 It is the sectional view structure schematic drawing of the utility model Figure 1 The structure enlarged schematic drawing of the place A in the utility model;

[0020] Figure 3 It is the sectional view structure schematic drawing of the casing structure 201 of the utility model;

[0021] Figure 4 It is the mounting structure schematic drawing of the end cover of the utility model;

[0022] Figure 5 It is the structure schematic drawing of the sealing ring of the utility model.

[0023] In the drawing:

[0024] 1, generator body;2, external casing;201, casing structure;202, gas port;203, end cover;2031, mounting hole;2032, through -hole;204, gas port two;205, screw hole;3, sealing structure;301, sealing groove;302, second sealing groove;303, connecting groove;304, sealing ring;3041, multiple ring body;3042, connecting pad;4, wire;5, sealing ring two;6, screw. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Please refer to Figures 1-5 The utility model provides a technical scheme: a pneumatic generator with a shell structure, including generator body 1, the outside of generator body 1 is provided with external shell 2, and external shell 2 includes shell structure 201, one end of shell structure 201 is provided with air port 202, the other end of shell structure 201 is provided with end cover 203, one side of end cover 203 is provided with air port two 204, shell structure 201 and end cover 203 are connected through sealing structure 3, sealing structure 3 includes multiple sealing grooves 301 that are opened on the inner wall of external shell 2, sealing structure 3 also includes multiple second sealing grooves 302 that are opened on the outside of end cover 203, sealing structure 3 also includes connecting groove 303 between multiple sealing grooves 301 and multiple second sealing grooves 302, the inside of sealing groove 301, second sealing groove 302 and connecting groove 303 is provided with sealing ring 304, and sealing ring 304 includes multiple ring bodies 3041 located in the inside of sealing groove 301 and second sealing groove 302, multiple ring bodies 3041 are connected through connecting pad 3042, by setting sealing structure 3 between shell structure 201 and end cover 203, sealing structure 3 includes multiple sealing grooves and sealing rings when in use, the sealing effect is good when in use, and multiple sealing rings are connected through connecting pad 3042, the stability is high and is not easy to separate from the sealing groove, so that the sealing effect between shell structure 201 and end cover 203 is good, the use effect of the device is effectively improved, and the practicability of the device is enhanced.

[0027] Please refer to Figure 1 And Figure 4 Shell structure 201 is provided with a cavity for mounting generator body 1, and the outside of generator body 1 is sleeved with sealing ring two 5, and the cavity of external shell 2 is divided into two independent spaces by sealing ring two 5.

[0028] Please refer to Figure 1 And Figure 2 It also includes wire 4 electrically connected with generator body 1, and mounting hole 2031 for wire 4 to penetrate is formed in the inside of end cover 203, external shell 2 and end cover 203 are connected through screw 6, through hole 2032 for mounting screw 6 is formed in end cover 203, and screw thread hole 205 for mounting screw 6 is formed in one side of external shell 2.

[0029] Working principle: sealing structure 3 includes multiple sealing grooves and sealing rings, shell structure 201 and end cover 203 are sealed through sealing structure 3, multiple sealing rings are connected through connecting pad 3042, the stability is high and is not easy to separate from the sealing groove, so that the sealing effect between shell structure 201 and end cover 203 is good.

[0030] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A gas dynamic generator with a housing structure, comprising a generator body (1), characterized in that: The external generator body (1) is provided with an external shell (2), the external shell (2) comprises a shell structure (201), one end of the shell structure (201) is provided with an air port (202), the other end of the shell structure (201) is provided with an end cover (203), one side of the end cover (203) is provided with an air port two (204), the shell structure (201) and the end cover (203) are connected through a sealing structure (3), the sealing structure (3) comprises a plurality of sealing grooves (301) opened on the inner wall of the external shell (2), the sealing structure (3) further comprises a plurality of second sealing grooves (302) opened on the outside of the end cover (203), the sealing structure (3) further comprises a connecting groove (303) located between the plurality of sealing grooves (301) and the plurality of second sealing grooves (302), the inside of the sealing groove (301), the second sealing groove (302) and the connecting groove (303) is provided with a sealing ring (304), the sealing ring (304) comprises a plurality of ring bodies (3041) located in the sealing groove (301) and the second sealing groove (302), the plurality of ring bodies (3041) are connected through connecting pads (3042).

2. A gas dynamic engine with a housing structure according to claim 1, characterized in that: The shell structure (201) is internally provided with a cavity for mounting the generator body (1).

3. A gas dynamic engine with a housing structure according to claim 1, characterized in that: The external generator body (1) is sleeved with a sealing ring two (5), and the cavity of the external shell (2) is divided into two independent spaces by the sealing ring two (5).

4. The air turbine generator with a housing structure according to claim 1, wherein: It also includes a wire (4) electrically connected with the generator body (1), and the end cover (203) is internally provided with a mounting hole (2031) for the wire (4) to penetrate.

5. The air turbine generator with a housing structure according to claim 1, wherein: The external shell (2) and the end cover (203) are connected through screws (6).

6. The air turbine generator with a housing structure according to claim 1, wherein: The end cover (203) is provided with a through hole (2032) for mounting the screw (6).

7. The air turbine generator with a housing structure according to claim 1, wherein: One side of the external shell (2) is provided with a threaded hole (205) for mounting the screw (6).

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