Non-resorption high-speed mobile phone

Abstract

A non-resorption high-speed mobile phone comprises a head shell, a bearing seat, a non-return sleeve, a flat gasket, a rotating assembly and a rear cover assembly. The bearing seat is installed in one end of the head shell, the rear cover assembly is installed at the other end of the head shell, one end of the rotating assembly is rotatably installed on the bearing seat, the other end of the rotating assembly is rotatably installed on the rear cover assembly, and the rotating assembly is located in the head shell; one end of the non-return sleeve is installed on the bearing seat, the other end of the non-return sleeve can abut against the rotating assembly, and the flat gasket is installed on the bearing seat. The non-resorption high-speed handpiece provided according to the content solves the problems that in the prior art, after a dental drill high-speed handpiece stops working, a mandrel needs to be completely stopped for a long time and can be taken out of an oral cavity after stopping, so that working efficiency is low, the interior of the dental drill high-speed handpiece can be in a negative pressure state after shutdown, and the working efficiency is low. And impurities and liquid in the oral cavity can be adsorbed to enter the inner part to be polluted, so that the service life is greatly shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to dental drill high speed mobile phone technical field especially relates to a no back suction high speed mobile phone. BACKGROUND

[0002] The development history of dental drill high speed mobile phone can be traced back to the end of the 19th century to the beginning of the 20th century. With the continuous progress of oral medicine, dental treatment equipment is also constantly updated. As an important tool in modern oral medicine, the development history of dental drill high speed mobile phone has experienced several stages from manual to electric, and then to high speed turbine. Especially the emergence of high speed turbine mobile phone, with its efficient and accurate characteristics, has become the preferred equipment for dental treatment.

[0003] However, the dental drill high speed mobile phone in the prior art needs a long time to completely stop after stopping work, and can be taken out from the oral cavity only after stopping, resulting in low work efficiency. Moreover, the internal part of the dental drill high speed mobile phone will appear negative pressure state after stopping, which may adsorb the sundries and liquid in the oral cavity into the internal part and be contaminated, greatly reducing the service life. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a no back suction high speed mobile phone, solving the problem that the dental drill high speed mobile phone in the prior art needs a long time to completely stop after stopping work, and can be taken out from the oral cavity only after stopping, resulting in low work efficiency. Moreover, the internal part of the dental drill high speed mobile phone will appear negative pressure state after stopping, which may adsorb the sundries and liquid in the oral cavity into the internal part and be contaminated, greatly reducing the service life.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] A no back suction high speed mobile phone, comprising a head shell, a bearing seat, a check sleeve, a flat pad, a rotating assembly and a rear cover assembly;

[0007] The bearing seat is installed in the inside of one end of the head shell, the rear cover assembly is installed at the other end of the head shell, one end of the rotating assembly is rotatably installed in the bearing seat, the other end of the rotating assembly is rotatably installed in the rear cover assembly, and the rotating assembly is located in the inside of the head shell;

[0008] One end of the check sleeve is installed in the bearing seat, the other end of the check sleeve can abut against the rotating assembly, the flat pad is installed in the bearing seat, one side of the flat pad is attached to one end of the check sleeve, and the other end of the flat pad is attached to the rotating assembly;

[0009] The head shell is provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively communicated with the inside of the head shell.

[0010] Further, the rotating assembly comprises a shaft, a wind wheel, a first bearing and a second bearing;

[0011] The wind wheel, the inner periphery of the first bearing and the inner periphery of the second bearing are respectively installed at one end of the shaft, the first bearing is located at the front side of the wind wheel, the outer periphery of the first bearing is installed at the bearing seat, and the first bearing abuts against the flat pad, the second bearing is located at the rear side of the wind wheel, the outer periphery of the second bearing is installed at the rear cover assembly, and the other end of the shaft protrudes from the outside of the head shell.

[0012] Specifically, the bearing seat is sequentially provided with a first avoidance slot, a second avoidance slot, a first installation slot and a second installation slot from front to back, one end of the check sleeve is installed at the first installation slot, the other end of the check sleeve is located at the second avoidance slot, the other end of the check sleeve can be swung up or swung down in the second avoidance slot, and the flat pad and the first bearing are respectively installed at the second installation slot.

[0013] Preferably, a first sealing ring is further included, the bearing seat is provided with a third installation slot, the third installation slot is located at the rear side of the second installation slot, and the third installation slot is installed with the first sealing ring.

[0014] In some embodiments, the head shell is provided with a first channel and a second channel, the first channel is communicated with the air inlet, and the second channel is communicated with the air outlet.

[0015] Further, the head shell is provided with a third channel and a fourth channel, the bearing seat is provided with a fifth channel and a sixth channel, the third channel is communicated with the fifth channel, the third channel is used for conveying atomized gas, and the fourth channel is used for conveying clean water.

[0016] Specifically, the rear cover assembly comprises a fixed ring, a gland, a first elastic member and a second elastic member.

[0017] One end of the fixed ring is installed at the head shell, the gland is installed at the other end of the fixed ring, one end of the first elastic member abuts against the fixed ring, the other end of the first elastic member abuts against the gland, the second elastic member is installed at the inside of one end of the fixed ring, the second elastic member is used for abutting against the second bearing, and the second bearing is installed at the inside of one end of the fixed ring.

[0018] Preferably, the rear cover assembly further comprises a second sealing ring, the inner periphery of the second sealing ring is sleeved on the outer periphery of the second bearing, and the outer periphery of the second sealing ring is installed at the inside of the fixed ring.

[0019] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0020] By the head shell, air inlet, air outlet, bearing seat, check sleeve, flat pad, rotating assembly and rear cover assembly, the end of the check sleeve is swung forward without affecting the rotation of the rotating assembly by the pressure change in the head shell, and the end of the check sleeve is swung backward to play a brake and sealing role, which not only can make the rotating assembly stop rotating quickly and improve the work efficiency, but also can prevent foreign matters and liquid from being adsorbed to the inside of the head shell under the negative pressure state, thereby preventing the internal parts of the non-back suction high-speed mobile phone from being polluted and damaged, achieving the purpose of non-back suction, and improving the service life of the non-back suction high-speed mobile phone. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structure schematic view of a non-back suction high-speed mobile phone of one of the embodiments of the utility model;

[0022] Figure 2 is a structure schematic view of a bearing seat of one of the embodiments of the utility model;

[0023] Figure 3 is a structure schematic view of a rear cover assembly and a rotating assembly of one of the embodiments of the utility model;

[0024] Figure 4 is a structure schematic view of an air inlet and an air outlet of one of the embodiments of the utility model;

[0025] Figure 5 is a structure schematic view of a first channel and a second channel of one of the embodiments of the utility model;

[0026] Figure 6 is a structure schematic view of a third channel and a fourth channel of one of the embodiments of the utility model;

[0027] Among them: head shell 1, air inlet 11, air outlet 12, first channel 13, second channel 14, third channel 15, fourth channel 16, bearing seat 2, first air avoidance groove 21, second air avoidance groove 22, first installation groove 23, second installation groove 24, third installation groove 25, fifth channel 26, sixth channel 27, check sleeve 3, flat pad 4, rotating assembly 5, mandrel 51, wind wheel 52, first bearing 53, second bearing 54, rear cover assembly 6, fixed ring 61, gland 62, first elastic member 63, second elastic member 64, second sealing ring 65, first sealing ring 7. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for the purpose of explaining the present application, and are not to be understood as a limitation of the present application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inner side", "outer side", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features, which are used to distinguish the described features, and there is no order or importance. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0030] In one embodiment of the present application, as Figures 1-6The high-speed mobile phone without back suction comprises a head shell 1, a bearing seat 2, a non-return sleeve 3, a flat pad 4, a rotating assembly 5 and a rear cover assembly 6. The bearing seat 2 is arranged in the interior of one end of the head shell 1, the rear cover assembly 6 is arranged at the other end of the head shell 1, one end of the rotating assembly 5 is rotatably arranged in the bearing seat 2, the other end of the rotating assembly 5 is rotatably arranged in the rear cover assembly 6, and the rotating assembly 5 is arranged in the interior of the head shell 1. One end of the non-return sleeve 3 is arranged in the bearing seat 2, the other end of the non-return sleeve 3 is abutted against the rotating assembly 5, the flat pad 4 is arranged in the bearing seat 2, one side of the flat pad 4 is abutted against one end of the non-return sleeve 3, and the other end of the flat pad 4 is abutted against the rotating assembly 5. The head shell 1 is provided with an air inlet 11 and an air outlet 12, and the air inlet 11 and the air outlet 12 are respectively communicated with the interior of the head shell 1. In the embodiment, when the bearing seat 2 is arranged in the interior of the front end of the head shell 1, the non-return sleeve 3 and the flat pad 4 are sequentially arranged in the bearing seat 2, one end of the rotating assembly 5 is arranged in the bearing seat 2, one end of the rotating assembly 5 is pressed against one end of the non-return sleeve 3 through the flat pad 4, the other end of the non-return sleeve 3 is abutted against the rotating assembly 5, the other end of the rotating assembly 5 is arranged in the interior of the rear cover assembly 6, and the rear cover assembly 6 is arranged in the rear end of the head shell 1. The rotating assembly 5 is arranged in the middle region of the interior of the head shell 1, the air inlet 11 is communicated with an external air source, and when the high-speed mobile phone without back suction works, the external air source supplies air to the interior of the head shell 1 through the air inlet 11 and discharges air through the air outlet 12, so that the rotating assembly 5 rotates. At this time, due to the internal air pressure, the end of the non-return sleeve 3 is slightly raised forward, the end of the non-return sleeve 3 is not in contact with the rotating assembly 5, that is, the non-return sleeve 3 does not affect the normal rotation of the rotating assembly 5. When the external air source stops supplying air, a negative pressure environment is formed in the interior of the head shell 1, the end of the non-return sleeve 3 falls backward, the end of the non-return sleeve 3 is abutted against the rotating assembly 5, the non-return sleeve 3 plays a role of brake, so that the rotating assembly 5 quickly stops rotating, and at this time, the non-return sleeve 3 also plays a role of sealing, so that foreign matters and liquid in the external environment are prevented from being adsorbed into the interior of the head shell 1 under the negative pressure state. Through the head shell 1, the air inlet 11, the air outlet 12, the bearing seat 2, the non-return sleeve 3, the flat pad 4, the rotating assembly 5 and the rear cover assembly 6, the end of the non-return sleeve 3 is raised forward without affecting the rotation of the rotating assembly 5 by using the pressure change in the interior of the head shell 1, the end of the non-return sleeve 3 falls backward to play the roles of brake and sealing, so that the rotating assembly 5 is quickly stopped, the working efficiency is improved, foreign matters and liquid in the external environment are prevented from being adsorbed into the interior of the head shell 1 under the negative pressure state, the internal parts of the high-speed mobile phone without back suction are prevented from being polluted and damaged, the purpose of no back suction is achieved, and the service life of the high-speed mobile phone without back suction is improved.

[0031] As Figures 1-3 shown, the rotating assembly 5 includes a mandrel 51, a wind wheel 52, a first bearing 53 and a second bearing 54; the wind wheel 52, the inner periphery of the first bearing 53 and the inner periphery of the second bearing 54 are respectively installed at one end of the mandrel 51, the first bearing 53 is located at the front side of the wind wheel 54, the outer periphery of the first bearing 53 is installed on the bearing seat 2, and the first bearing 53 abuts against the flat pad 4, the second bearing 54 is located at the rear side of the wind wheel 54, the outer periphery of the second bearing is installed on the rear cover assembly 6, the other end of the mandrel 51 protrudes outside the head shell 1. In this embodiment, the wind wheel 52 is specifically installed on the rear half of the mandrel 51, the wind wheel 52 and the mandrel 51 are of an integrated structure, the wind wheel 52 is respectively opposite to the air inlet 11 and the air outlet 12, during installation, the inner periphery of the first bearing 53 and the inner periphery of the second bearing 54 are respectively installed on the rear half of the mandrel 51, the first bearing 53 is located at the front side of the wind wheel 52, the second bearing 54 is located at the rear side of the wind wheel 52, then the front half of the mandrel 51 passes through the bearing seat 2 and protrudes from the front side of the head shell 1, and the first bearing 51 abuts against the flat pad 4 to compress the check sleeve 3, the outer periphery of the first bearing 51 is installed on the bearing seat 2, the outer periphery of the second bearing seat 52 is installed on the rear cover assembly 6, during work, the external air source sends air to the inside of the head shell 1 through the air inlet 11 and blows the wind wheel 52, the wind wheel 52 drives the mandrel 51 to rotate under the action of the first bearing 51 and the second bearing 52, and when the rotation is stopped, the end of the check sleeve 3 brakes the mandrel 51 to stop the rotation, which is convenient and fast.

[0032] As Figures 1-3As shown in the figure, the bearing seat 2 is provided with a first avoiding slot 21, a second avoiding slot 22, a first mounting slot 23 and a second mounting slot 24 from front to back, one end of the check sleeve 3 is mounted in the first mounting slot 23, the other end of the check sleeve 3 is located in the second avoiding slot 22, the other end of the check sleeve 3 can be swung up or down in the second avoiding slot 22, and the flat pad 4 and the first bearing 53 are respectively mounted in the second mounting slot 24. In this embodiment, when mounting, the bearing seat 2 is mounted in the inside of the head shell 1, one end of the check sleeve 3 is mounted in the first mounting slot 23, the flat pad 4 is mounted in the second mounting slot 24, and the flat pad 4 is pressed to fix the check sleeve 3, then the rotating assembly 5 is mounted in the bearing seat 2, specifically, the front half of the mandrel 51 passes through the second mounting slot 24, the first mounting slot 23, the second avoiding slot 22 and the first avoiding slot 21 in turn, so that the front half of the mandrel 51 protrudes from the front side of the head shell 1, and in the process of passing through, the rear half of the mandrel 51 pushes the end of the check sleeve 3 to the front side, so that it is located in the second avoiding slot 22 and abuts against the outer periphery of the rear half of the mandrel 51, at this time the first bearing 53 is mounted in the second mounting slot 24 and the flat pad 4 is pressed, through the above-mentioned compact mounting structure, the structural stability of the non-back suction high-speed mobile phone is improved.

[0033] As shown in the figure, Figures 1-3 The bearing seat 2 is provided with a third mounting slot 25, the third mounting slot 25 is located at the rear side of the second mounting slot 24, and the first sealing ring 7 is mounted in the third mounting slot 25. In this embodiment, the inner periphery of the first sealing ring 7 is sleeved on the outer periphery of the first bearing 53, and the outer periphery of the first sealing ring 7 is mounted in the third mounting slot 25, thereby improving the sealing performance of the non-back suction high-speed mobile phone.

[0034] As shown in the figure, Figure 1 And Figures 4-6 The head shell 1 is provided with a first channel 13 and a second channel 14, the first channel 13 is communicated with the air inlet 11, and the second channel 14 is communicated with the air outlet 12. In this embodiment, the head shell 1 is provided with a first channel 13 and a second channel 14, one end of the first channel 13 is communicated with an external air source, the other end of the first channel 13 is communicated with the air inlet 11, and the second channel 14 is communicated with the air outlet 12, thereby facilitating air supply and exhaust.

[0035] As shown in the figure, Figure 1 And Figures 4-6As shown, the head shell 1 is provided with a third channel 15 and a fourth channel 16, the bearing seat 2 is provided with a fifth channel 26 and a sixth channel 27, the third channel 15 is communicated with the fifth channel 26, the third channel 15 is used for conveying atomized gas, and the fourth channel is used for conveying clean water. In this embodiment, during operation, atomized gas is conveyed to the fifth channel 26 through the third channel 15, and clean water is conveyed to the sixth channel 27 through the fourth channel 16, so that the non-back-suction high-speed mobile phone has more use scenarios and functions during use, and the applicability of the non-back-suction high-speed mobile phone is improved.

[0036] As shown in Figure 1 and Figure 3 The rear cover assembly 6 includes a fixed ring 61, a gland 62, a first elastic member 63, and a second elastic member 64. One end of the fixed ring 61 is mounted to the head shell 1, the gland 62 is mounted to the other end of the fixed ring 61, one end of the first elastic member 63 abuts against the fixed ring 61, the other end of the first elastic member 63 abuts against the gland 62, the second elastic member 64 is mounted inside one end of the fixed ring 61, and the second elastic member 64 is used to abut against the second bearing 54 which is mounted inside one end of the fixed ring 61. In this embodiment, the first elastic member 63 is a spring, and the second elastic member 64 is a wave spring. During installation, the second elastic member 64 is mounted inside one end of the fixed ring 61, the second bearing 54 is mounted inside one end of the fixed ring 61, the second elastic member 64 is pressed against the second bearing 54, one end of the fixed ring 61 is mounted to the head shell 1, the gland 62 is mounted to the other end of the fixed ring 61, and the first elastic member 63 is mounted inside both of them so that both ends of the first elastic member 63 abut against the fixed ring 61 and the gland 62, respectively.

[0037] As shown in Figure 1 and Figure 3 The rear cover assembly 6 further includes a second sealing ring 65, the inner periphery of the second sealing ring 65 is sleeved on the outer periphery of the second bearing 54, and the outer periphery of the second sealing ring 65 is mounted inside the fixed ring 61. In this embodiment, the second sealing ring 65 is located in front of the second elastic member 65. The second sealing ring 65 is provided, the inner periphery of the second sealing ring 65 is sleeved on the outer periphery of the second bearing 54, and the outer periphery of the second sealing ring 65 is mounted inside the fixed ring 61, thereby improving the sealing performance of the non-back-suction high-speed mobile phone.

[0038] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A non-backsucking high speed handset, characterized by: The head shell, bearing seat, non-return sleeve, flat pad, rotating assembly and rear cover assembly are included. The bearing seat is installed inside one end of the head shell, the rear cover assembly is installed at the other end of the head shell, one end of the rotating assembly is rotatably installed in the bearing seat, the other end of the rotating assembly is rotatably installed in the rear cover assembly, and the rotating assembly is located inside the head shell. One end of the non-return sleeve is installed in the bearing seat, the other end of the non-return sleeve is abutted against the rotating assembly, the flat pad is installed in the bearing seat, one side of the flat pad is abutted against one end of the non-return sleeve, and the other end of the flat pad is abutted against the rotating assembly. The head shell is provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively communicated with the inside of the head shell.

2. A non-back-sucking high speed mobile phone according to claim 1, characterized in that: The rotating assembly includes a mandrel, a wind wheel, a first bearing and a second bearing. The wind wheel, the inner periphery of the first bearing and the inner periphery of the second bearing are respectively installed at one end of the mandrel, the first bearing is located at the front side of the wind wheel, the outer periphery of the first bearing is installed in the bearing seat, and the first bearing is abutted against the flat pad, the second bearing is located at the rear side of the wind wheel, the outer periphery of the second bearing is installed in the rear cover assembly, and the other end of the mandrel protrudes outside the head shell.

3. A non-back-sucking high speed mobile phone according to claim 2, characterized in that: The bearing seat is provided with a first air avoidance groove, a second air avoidance groove, a first installation groove and a second installation groove from front to back, one end of the non-return sleeve is installed in the first installation groove, the other end of the non-return sleeve is located in the second air avoidance groove, and the other end of the non-return sleeve can be swung up or down in the second air avoidance groove, and the flat pad and the first bearing are respectively installed in the second installation groove.

4. A non-back-sucking high speed mobile phone according to claim 3, characterized in that: A first sealing ring is further included, the bearing seat is provided with a third installation groove, the third installation groove is located at the rear side of the second installation groove, and the third installation groove is installed with the first sealing ring.

5. A non-back-sucking high speed mobile phone according to claim 1, wherein: The head shell is provided with a first channel and a second channel, the first channel is communicated with the air inlet, and the second channel is communicated with the air outlet.

6. A non-back-sucking high speed mobile phone according to claim 1, wherein: The head shell is provided with a third channel and a fourth channel, the bearing seat is provided with a fifth channel and a sixth channel, the third channel is communicated with the fifth channel, the third channel is used for conveying atomized gas, and the fourth channel is used for conveying clean water.

7. A non-back-sucking high speed handset according to claim 2, wherein: The rear cover assembly includes a fixed ring, a gland, a first elastic member and a second elastic member. One end of the fixed ring is installed in the head shell, the gland is installed at the other end of the fixed ring, one end of the first elastic member is abutted against the fixed ring, the other end of the first elastic member is abutted against the gland, the second elastic member is installed inside one end of the fixed ring, the second elastic member is used for abutting against the second bearing, and the second bearing is installed inside one end of the fixed ring.

8. A non-back-sucking high speed handset according to claim 7, wherein: The rear cover assembly further includes a second sealing ring, the inner periphery of the second sealing ring is sleeved on the outer periphery of the second bearing, and the outer periphery of the second sealing ring is installed inside the fixed ring.

Images