Microphone

Abstract

The application discloses a micro mobile phone, which comprises a shell, a motor arranged in the shell, and a connector fixedly connected with the motor, wherein the connector comprises a first connecting part fixedly connected with the motor and a second connecting part connected with an accessory, the first connecting part is provided with a clamping table matched with a shaft of the motor, and the clamping table is coaxial with the second connecting part. The connector of the application is provided with the clamping table matched with the shaft of the motor, the coaxiality of the connector and the motor is ensured through the matching of the clamping table and the shaft of the motor, and the problem that the coaxiality of the micro mobile phone cannot be ensured under multi-stage matching is avoided. Meanwhile, the clamping table is coaxial with the second connecting part, the coaxiality of the whole mobile phone is ensured, and the cumulative tolerance caused by multiple small parts is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a micro mobile phone. BACKGROUND

[0002] The micro mobile phone is a power system of micro drill and other accessories, and is widely used in surgical operations. The micro mobile phone has high rotating speed, and thus has high requirements on coaxiality.

[0003] At present, the micro mobile phone is generally fixed with a motor on a shell, and a part connected with an accessory is fixed on the shell. This structure has high requirements on machining of the whole machine parts, and cannot effectively ensure consistency and reliability of the micro mobile phone in coaxiality. SUMMARY

[0004] The present application aims at the above-mentioned defects in the prior art, and provides a micro mobile phone with high coaxiality.

[0005] To achieve the above-mentioned application purposes, the present application adopts the following technical scheme: a micro mobile phone comprises a shell, a motor arranged in the shell, and a joint fixedly connected with the motor, the joint comprises a first connecting part fixedly connected with the motor and a second connecting part connected with an accessory, the first connecting part is provided with a clamping table matched with a shaft of the motor, and the clamping table is coaxial with the second connecting part.

[0006] Further, the first connecting part and the motor are correspondingly provided with threaded holes, and the first connecting part and the motor are fixedly connected through screws.

[0007] Further, the motor comprises an output shaft, the second connecting part is provided with a shaft channel accommodating the output shaft, the shaft channel extends along the second connecting part in the axial direction and penetrates through the second connecting part.

[0008] Further, the clamping table is in communication with the shaft channel, and an inner diameter of the clamping table is greater than an inner diameter of the shaft channel.

[0009] Further, a sealing block is arranged between the clamping table and the output shaft.

[0010] Further, the micro mobile phone further comprises a positioning ring and a sealing ring, the second connecting part is further provided with a positioning groove limiting the positioning ring and a sealing groove accommodating the sealing ring.

[0011] Further, the micro mobile phone further comprises an end cover fixedly connected with the shell, and the first connecting part is arranged in the end cover.

[0012] Further, the micro mobile phone further comprises a positioning pin, and the end cover is provided with a pin hole fixing the positioning pin.

[0013] Further, the micro mobile phone further comprises a motor rear support arranged at the rear end of the motor and a fastening assembly for fixing the power cord of the motor, and the motor rear support is arranged in the shell.

[0014] Further, the fastening assembly comprises a tightening sleeve, a locking sleeve sleeved on the tightening sleeve, a fixing sleeve fixed between the locking sleeve and the shell, and a protective sleeve sleeved on the power cord.

[0015] Compared with the prior art, the joint is provided with a clamping table matched with the motor shaft, the coaxiality of the joint and the motor is ensured through the matching of the clamping table and the motor shaft, the problem that the micro mobile phone cannot ensure the coaxiality under multi-stage matching is avoided, meanwhile, the clamping table is coaxial with the second connecting part, the coaxiality of the whole mobile phone is ensured, and the cumulative tolerance caused by multiple small parts is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic diagram of the micro mobile phone of the present application.

[0017] Figure 2 is Figure 1 is the sectional view along A-A direction.

[0018] Figure 3 is the structure schematic diagram of the joint and the motor of the micro mobile phone of the present application. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be further described in detail below in combination with preferred embodiments and the drawings thereof. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length h", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0020] As Figure 3As shown, the micro mobile phone of one embodiment of the present application comprises a shell 3, a motor 1 arranged inside the shell 3, and a connector 2 fixedly connected with the motor 1, the connector 2 comprising a first connecting part 21 and a second connecting part 22 fixedly connected with each other, the first connecting part 21 being fixedly connected with the motor 1, and the second connecting part 22 being connected with an accessory; the first connecting part 21 is provided with a clamping table 211 matched with the shaft of the motor 1, and the clamping table 211 is coaxial with the second connecting part 22.

[0021] By matching the clamping table 221 with the shaft of the motor 1, the coaxiality of the connector 2 and the motor 1 is ensured, and the problem that the micro mobile phone cannot ensure the coaxiality under multi-stage cooperation is avoided; at the same time, the clamping table 221 is coaxial with the second connecting part 22, the coaxiality of the whole mobile phone is ensured, and the cumulative tolerance caused by multiple small parts is reduced.

[0022] The second connecting part 22 is internally formed with a clamping groove 210 clamping the motor 1, and the cross section of the clamping groove 210 is in a stepped shape, comprising a first step surface 212 and a second step surface. The clamping table 211 is in a circular ring shape, and is the second step surface of the clamping groove 210. The motor 1 comprises a motor main body 10 and a shaft matching part 11, wherein the motor main body 10 is clamped in the first step surface 212, and the shaft matching part 11 is axially matched with the clamping table 211. Since the clamping table 211 is axially matched with the shaft matching part 11, the coaxiality of the connector 2 and the motor 1 is ensured, and the problem that the micro mobile phone cannot ensure the coaxiality under multi-stage cooperation is avoided.

[0023] As shown in Figure 1 and Figure 2 the first connecting part 21 and the motor 1 are correspondingly provided with threaded holes 213, and the first connecting part 21 and the motor 1 are fixedly connected by screws 16. The first connecting part 21 and the motor 1 are connected by screws, on the one hand, the connector 2 is fixed on the motor 1, and on the other hand, the coaxiality of the connector 2 and the motor 1 is improved by the correspondingly arranged threaded holes 213 on the first connecting part 21 and the motor 1, so that the coaxiality of the micro mobile phone is more reliable.

[0024] The motor 1 further comprises an output shaft 12, which is connected with the accessory and drives the accessory to rotate. The second connecting part 22 is formed with a shaft channel 220 accommodating the output shaft 12, and the shaft channel 220 extends along the axial direction of the second connecting part 22 and penetrates through the second connecting part 22. A positioning groove 222 and a sealing groove 221 are arranged on the outer side of the second connecting part 22, wherein the positioning groove 222 is used to limit the positioning ring 10, and the sealing groove 221 is used to limit the sealing ring 9.

[0025] The clamping table 211 is in communication with the output shaft 12, and the inner diameter of the clamping table 211 is greater than the inner diameter of the output shaft 12, and there is a step between the clamping table 211 and the output shaft 12. A sealing block 14 is further arranged between the output shaft 12 and the clamping table 211, and the sealing block 14 abuts against the step.

[0026] The micro mobile phone further comprises an end cover 4 fixedly connected with the shell 3, the first connecting part 21 is arranged in the end cover 4, and a sealing gasket 15 is arranged between the end cover 4 and the first connecting part 21. The end cover 4 is provided with a pin hole 40 for fixing the positioning pin 7.

[0027] The motor 1 is provided with a power line 13 at the end thereof, and the micro mobile phone further comprises a motor rear support 6 arranged at the end of the motor 1 and a fastening assembly 5 for fixing the power line 13. The motor rear support 6 is sleeved at the rear end of the motor 1 and arranged in the shell 3. The fastening assembly 5 comprises a tightening sleeve 50, a locking sleeve 52 sleeved on the tightening sleeve 50, a fixing sleeve 51 arranged between the locking sleeve 52 and the shell 3, and a protective sleeve 53 sleeved on the power line 13. One end of the protective sleeve 53 is fixed between the locking sleeve 52 and the fixing sleeve 51, and the other end of the protective sleeve 53 extends to the power line 13 and is sleeved on the power line 13. The protective sleeve 53 is made of silica gel. A sealing ring 9 is arranged between the fixing sleeve 51 and the shell 3.

[0028] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be pointed out that for ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A microcellular phone comprising a casing (3) and an electric motor (1) arranged inside said casing (3), characterized in that, The micro mobile phone further comprises a connector (2) fixedly connected with the motor (1), the connector (2) comprising a first connecting part (21) fixedly connected with the motor (1) and a second connecting part (22) connected with an accessory, the first connecting part (21) being provided with a clamping table (211) matched with the shaft of the motor (1), the clamping table (211) being coaxial with the second connecting part (22); The micro mobile phone further comprises a motor rear support (6) arranged at the rear end of the motor (1) and a fastening assembly (5) for fixing the power line (13) of the motor (1), the motor rear support (6) being arranged in the shell (3); The fastening assembly (5) comprises a tightening sleeve (50), a locking sleeve (52) sleeved on the tightening sleeve (50), a fixing sleeve (51) fixed between the locking sleeve (52) and the shell (3), and a protective sleeve (53) sleeved on the power line (13); The first connecting part (21) and the motor (1) are correspondingly provided with threaded holes (213), and the first connecting part (21) and the motor (1) are fixedly connected through screws (16); The motor (1) comprises an output shaft (12), the second connecting part (22) is provided with a shaft channel (220) accommodating the output shaft (12), the shaft channel (220) extending axially along the second connecting part (22) and penetrating through the second connecting part (22); The clamping table (211) is in communication with the shaft channel (220), and the inner diameter of the clamping table (211) is greater than the inner diameter of the shaft channel (220); A sealing block (14) is arranged between the clamping table (211) and the output shaft (12).

2. The microcellular phone according to claim 1, wherein, The micro mobile phone further comprises a positioning ring (10) and a sealing ring (9), the second connecting part (22) further being provided with a positioning groove (222) limiting the positioning ring (10) and a sealing groove (221) accommodating the sealing ring (9).

3. The microcellular phone of claim 1, wherein, The micro mobile phone further comprises an end cover (4) fixedly connected with the shell (3), and the first connecting part (21) is arranged in the end cover (4).

4. The microcellular phone of claim 3 wherein, The micro mobile phone further comprises a positioning pin (7), and the end cover (4) is provided with a pin hole (40) fixing the positioning pin (7).

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