CN212793877U - Mobile terminal's casing subassembly, mobile terminal, batch head and automatic screw machine of twisting - Google Patents

Abstract

The utility model discloses a mobile terminal's casing subassembly, mobile terminal, batch head and automatic screw machine of twisting. The housing assembly includes: the middle frame is provided with an accommodating cavity with one open side, a waterproof flanging extending towards the direction close to the center of the accommodating cavity is arranged on the end face of the open end of the accommodating cavity, the waterproof flanging is spaced from the bottom wall of the accommodating cavity, the middle frame is provided with a first threaded hole positioned in the bottom wall of the accommodating cavity, and the projection of the waterproof flanging on the bottom wall of the accommodating cavity covers at least part of the first threaded hole; the main board is provided with a second threaded hole; the screw comprises a stud and a nut arranged at one axial end of the stud, a matching portion is arranged on the outer peripheral wall of the nut, and the matching portion is suitable for being matched with a screwing piece to drive the screw to rotate through the screwing piece so that the stud is in threaded connection with the first threaded hole and the second threaded hole. According to the utility model discloses a mobile terminal's casing subassembly has improved the waterproof width of center, has guaranteed water-proof effects.

Description

Mobile terminal's casing subassembly, mobile terminal, batch head and automatic screw machine of twisting

Technical Field

The utility model belongs to the technical field of the mobile terminal technique and specifically relates to a mobile terminal's casing subassembly, mobile terminal, batch head and automatic screw machine of twisting.

Background

Generally, in order to ensure the function of the main board, the main board is large in size, and the peripheral edge of the main board is disposed adjacent to the peripheral wall of the middle frame. In order to guarantee the reliable connection of mainboard and center, the edge of mainboard has the second screw hole that the screw passes through, has first screw hole on the diapire of center, and the screw is worn to locate second screw hole and first screw hole and is fixed the center with the mainboard on, then the gum is laminated on the battery lid, laminates the battery lid on the center again to realize that the outside of complete machine is waterproof.

However, in the related art, since the screw is screwed through the cross-shaped groove at the end face of one axial end of the screw, the screw needs to be straight up and down, which requires the nut for avoiding the screw and the avoiding groove for screwing the screw member to be arranged on the peripheral wall of the middle frame, the arrangement of the avoiding groove causes the waterproof width of the peripheral wall of the middle frame at the avoiding groove to be reduced, the minimum waterproof width of the IPX8 waterproof grade needs to be more than 2mm, in order to meet the waterproof grade, the overall appearance has to be widened, the overall size is increased, and the use hand feeling of a user is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mobile terminal's casing subassembly, the size is little.

The utility model discloses still provide a mobile terminal, including foretell mobile terminal's casing subassembly.

The utility model discloses still provide a criticize the head, criticize the head be suitable for with foretell casing assembly's screw cooperation.

The utility model also provides an automatic screw machine of twisting, including foretell batch head.

According to the utility model discloses mobile terminal's casing assembly, include: the middle frame is provided with an accommodating cavity with one open side, a waterproof flanging extending towards the direction close to the center of the accommodating cavity is arranged on the end face of the open end of the accommodating cavity, the waterproof flanging is spaced from the bottom wall of the accommodating cavity, the middle frame is provided with a first threaded hole located in the bottom wall of the accommodating cavity, and the projection of the waterproof flanging on the bottom wall of the accommodating cavity covers at least part of the first threaded hole; the main board is provided with a second threaded hole; the screw, the screw includes the double-screw bolt and establishes the nut of the axial one end of double-screw bolt, be equipped with cooperation portion on the periphery wall of nut, cooperation portion be suitable for with screw member cooperation with through screw member drive the screw is rotatory so that the double-screw bolt with first screw hole with second screw hole threaded connection.

According to the utility model discloses mobile terminal's casing subassembly is through setting up cooperation portion on the periphery wall at the nut to utilize to twist the purpose that screw spare and cooperation portion cooperation realized the screw was twisted to the side, avoided avoiding the setting in groove like this among the correlation technique, the position of dodging the groove originally sets up waterproof turn-ups, thereby has improved the waterproof width of center, has guaranteed water-proof effects, need not to widen the casing appearance, can improve user's use and experience.

According to some embodiments of the present invention, the outer peripheral wall of the nut is provided with a first plane and a second plane, the first plane and the second plane being disposed opposite to each other in a radial direction of the nut, the first plane and the second plane defining the fitting portion.

According to some embodiments of the invention, the first plane and the second plane are arranged in parallel.

According to some embodiments of the present invention, the first plane and the second plane are respectively a plurality of, a plurality of the first plane and a plurality of the second plane are alternately arranged and adjacent to the circumference of the nut, the first plane and the second plane have an included angle to form a plurality of the fitting portions.

According to some embodiments of the present invention, the outer peripheral wall of the nut is provided with a plurality of first teeth portions, the plurality of first teeth portions are arranged along the circumferential direction of the nut at intervals, and the plurality of first teeth portions define the fitting portion.

According to some embodiments of the invention, the screw is magnetically attracted.

According to some embodiments of the invention, the screw is an integrally formed part.

According to the utility model discloses mobile terminal, including foretell casing assembly.

According to the utility model discloses mobile terminal, through setting up foretell casing subassembly, through set up cooperation portion on the periphery wall of nut to utilize to twist the purpose that screw spare and cooperation portion cooperation realized the screw is twisted to the side, avoided the setting of dodging the groove among the correlation technique like this, the position of dodging the groove in original setting can set up waterproof turn-ups, thereby has improved the waterproof width of center, has guaranteed water-proof effects, need not to widen the casing appearance, can improve user's use experience.

According to the utility model discloses criticize head, include: a bit body; the second tooth parts are arranged on the peripheral wall of the bit body and are spaced along the circumferential direction of the bit body, and the second tooth parts are suitable for being matched with the first tooth parts of the screws so as to drive the screws to rotate when the bit rotates.

According to the utility model discloses criticize the head, through setting up second tooth portion on criticizing the head body, set up first tooth portion on the nut of screw to when making criticizing the head and rotate, the cooperation of second tooth portion and first tooth portion rotates around its self axis with the drive screw, thereby can realize the side purpose of twisting the screw.

According to some embodiments of the present invention, the bit is a magnetic attraction member that can be magnetically attracted to the screw.

According to some embodiments of the invention, the first tooth portion and the second tooth portion are straight teeth or helical teeth.

According to some embodiments of the utility model, be equipped with on the batch head body and be used for adsorbing the negative pressure hole of screw.

According to the utility model discloses automatic screw machine screws, including foretell batch head.

According to the utility model discloses automatic screw machine screws through setting up foretell batch head, through setting up second tooth portion on batch head body, sets up first tooth portion on the nut of screw to when making batch head rotate, the cooperation of second tooth portion and first tooth portion is rotated around its self axis with driving screw, thereby can realize the purpose of side screw.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic diagram of a mating of a batch head and a partial structure of a housing assembly of a mobile terminal according to some embodiments of the present invention;

FIG. 2 is an exploded view of a portion of the housing assembly shown in FIG. 1;

FIG. 3 is a sectional view of a portion of the structure of the housing assembly shown in FIG. 1;

fig. 4 is a schematic view of the engagement of a bit with a screw according to some embodiments of the present invention;

fig. 5 is a schematic view of a screw according to some embodiments of the present invention;

fig. 6 is a schematic diagram of a mobile terminal according to some embodiments of the present invention, wherein the mobile terminal is a mobile phone.

Reference numerals:

a mobile terminal 100; a housing assembly 10; a middle frame 101; a receiving cavity 1011; a first threaded hole 1012; waterproof flange 1013; a main board 102; a second threaded hole 1021; a screw 103; a stud 1031; a nut 1032; the first tooth portion 10321; a first plane 10322; a second plane 10323; a battery cover 104; a back adhesive 105;

a batch head 200; a batch head body 201; the second tooth portion 202.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The case assembly 10 of the mobile terminal 100, the batch head 200, and the automatic screw driving machine according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1-2, a housing assembly 10 of a mobile terminal 100 according to an embodiment of the present invention includes: middle frame 101, main plate 102 and screw 103.

Specifically, as shown in fig. 2 and 3, the middle frame 101 has a receiving cavity 1011 with one open side, the middle frame 101 has a first threaded hole 1012 located at the bottom wall of the receiving cavity 1011, a waterproof flange 1013 extending toward a direction close to the center of the receiving cavity 1011 is provided on an end surface of the open end of the receiving cavity 1011, the waterproof flange 1013 is spaced apart from the bottom wall of the receiving cavity 1011, thus, an insertion opening can be formed between one end of the waterproof flange 1013 adjacent to the inside of the accommodating cavity 1011 and the bottom wall of the accommodating cavity 1011, the projection of the waterproof flange 1013 on the bottom wall of the accommodating cavity 1011 covers at least part of the first threaded hole 1012, the main board 102 is provided with the second threaded hole 1021, the screw 103 comprises a stud 1031 and a nut 1032 arranged at one axial end of the stud 1031, the outer peripheral wall of the nut 1032 is provided with a matching part, the matching part is suitable for matching with a screw member to drive the screw 103 to rotate through the screw member, thereby screwing the stud 1031 into the first and second threaded holes 1012 and 1021.

Specifically, for example, during assembly of the housing assembly 10, the main board 102 may be first placed in the receiving cavity 1011, and a portion of the main board 102 may be positioned between the waterproof bead 1013 and the bottom wall of the receiving cavity 1011, such that the first threaded hole 1012 on the middle frame 101 is aligned with the second threaded hole 1021 on the main board 102, then the screw 103 may be inserted between the waterproof bead 1013 and the main board 102 from the insertion opening, and a portion of the stud 1031 may be positioned in the second threaded hole 1021, and then the screw 103 may be rotated by engaging the screw member with the engaging portion of the peripheral wall of the nut 1032, such that the stud 1031 is screwed into the first threaded hole 1012 and the second threaded hole 1021 to achieve connection between the middle frame 101 and the main board 102.

In the related art, since the screw 103 is screwed through the cross-shaped groove at the end face of one axial end of the screw 103, the screw 103 needs to be straight up and down, which requires a semi-cylindrical avoiding groove for avoiding the nut 1032 and the screwdriver to be arranged on the peripheral wall of the middle frame 101, and the arrangement of the avoiding groove causes the waterproof width of the peripheral wall of the middle frame 101 at the avoiding groove to be reduced, and since the minimum waterproof width of the IPX8 waterproof grade needs to be more than 2mm, in order to meet the waterproof grade, the appearance of the whole machine shell has to be widened, which causes the size of the whole machine to be increased, and affects the use hand feeling of a user.

In view of this, according to the utility model discloses mobile terminal 100's casing assembly 10, through set up cooperation portion on nut 1032's periphery wall, thereby utilize the cooperation of screw member and cooperation portion to realize the purpose of side screw 103, need not the straight up screw down of axial along screw 103, avoid dodging the setting in the correlation technique like this, the position of dodging the groove originally sets up can set up waterproof turn-ups 1013, thereby the waterproof width of center 101 has been improved, waterproof effect has been guaranteed, need not to widen the casing appearance, user's use experience can be improved.

In some embodiments of the present invention, referring to fig. 5, the peripheral wall of the nut 1032 is provided with a first plane 10322 and a second plane 10323, the first plane 10322 and the second plane 10323 are oppositely disposed in the radial direction of the nut 1032, and the first plane 10322 and the second plane 10323 define the mating portion. Specifically, for example, the screwing member may be a wrench, and the wrench may be engaged with the first plane 10322 and the second plane 10323, so as to achieve the purpose of screwing the screw 103, and the structure is simple.

Specifically, the first plane 10322 and the second plane 10323 are arranged in parallel. Therefore, the reliability of the matching of the wrench and the matching part can be improved.

According to some embodiments of the present invention, the first plane 10322 and the second plane 10323 are respectively plural, the plural first planes 10322 and the plural second planes 10323 are alternately arranged in the circumferential direction of the nut 1032, and the adjacent first planes 10322 and the adjacent second planes 10323 have an included angle, so as to form the plural fitting portions. For example, the nut 1032 is formed in a regular hexagonal prism shape, thereby forming 3 fitting portions. Thus, the wrench can be conveniently engaged with different engaging portions, thereby improving the efficiency of screwing the screw 103.

In some embodiments of the present invention, the screw 103 is an integrally formed piece. From this, structure, the stable performance that the structure of an organic whole piece not only can guarantee to convenient shaping, manufacturing are simple, have saved unnecessary assembly part and connection process moreover, have improved assembly efficiency greatly, guarantee the reliability of screw 103, and in addition, the bulk strength and the stability of the structure of an organic whole formation are higher, and the equipment is more convenient, and the life-span is longer.

In some embodiments of the present invention, as shown in fig. 2, the housing assembly includes a battery cover 104 and a gum 105, the gum 105 is attached to the battery cover 104, the battery cover 104 is attached to the open end of the middle frame 101 through the gum 105, and a part of the gum 105 is attached to the waterproof flange 1013, thereby achieving the waterproof outside of the whole machine.

According to the utility model discloses criticize first 200, can be for twisting the screw piece, criticize first 200 can cooperate with screw 103.

Specifically, referring to fig. 4, the bit 200 may include a bit body 201 and a plurality of second teeth 202. The plurality of second teeth portions 202 are arranged on the outer peripheral wall of the batch head body 201 and are spaced apart along the circumferential direction of the batch head body 201, the plurality of first teeth portions 10321 are arranged on the outer peripheral wall of the nut 1032 and are spaced apart along the circumferential direction of the nut 1032, the plurality of first teeth portions 10321 define a matching portion, so that the nut 1032 and the matching portion can be integrally formed into a gear shape, the portion of the batch head 200 provided with the second teeth portions 202 and the second teeth portions 202 can be formed into a gear shape, so that the second teeth portions 202 of the batch head 200 and the first teeth portions 10321 of the screws 103 are meshed and matched, when the batch head 200 rotates, the screws 103 can be driven to rotate around the axes of the second teeth portions 202 and the first teeth portions 10321, the purpose of laterally screwing the screws 103 is achieved, and therefore the efficiency of screwing the screws 103 is improved.

According to the batch head 200 of the embodiment of the present invention, the second tooth portion 202 is disposed on the batch head body 201, the first tooth portion 10321 is disposed on the nut 1032 of the screw 103, and when the batch head 200 is rotated, the second tooth portion 202 and the first tooth portion 10321 are engaged to drive the screw 103 to rotate around its own axis, so as to achieve the purpose of screwing the screw 103 to the side.

Alternatively, both the first tooth portion 10321 and the second tooth portion 202 may be straight teeth, that is, the nut 1032 and the fitting portion as a whole may be formed in a spur gear shape, and the portion of the batch head 200 where the second tooth portion 202 is provided and the second tooth portion 202 may be formed in a spur gear shape. Therefore, the processing and the manufacturing are more convenient.

Alternatively, both the first tooth portion 10321 and the second tooth portion 202 may be helical teeth, that is, the nut 1032 and the mating portion as a whole may be formed in a helical gear shape, and the portion of the bit 200 where the second tooth portion 202 is provided and the second tooth portion 202 may be formed in a helical gear shape. This improves the assembly accuracy, although the processing cost is increased, compared to the spur gear.

Optionally, the screw 103 is a magnetic member, and the batch head 200 is a magnetic member magnetically attracted to the screw 103. Therefore, the screw 103 and the batch head 200 are both arranged as magnetic parts, so that when the batch head 200 is used in the automatic screw 103 machine, the matching reliability of the batch head 200 and the screw 103 can be improved in the time period from the batch head 200 taking the screw 103 from the material table to the time period from the time when the screw 103 is screwed into the first threaded hole 1012 and the second threaded hole 1021, the screw 103 is prevented from being separated from the batch head 200, the problem that the screw 103 needs to be repeatedly taken is avoided, and the efficiency of screwing the screw 103 can be improved.

Of course, the utility model is not limited to this, in other embodiments, be equipped with the negative pressure hole on the batch head body 201, the downthehole negative pressure that is of negative pressure, utilize the downthehole negative pressure of negative pressure to realize the purpose of adsorbing screw 103, thereby use in automatic screw 103 machine at batch head 200, take away screw 103 from the material platform in the time quantum between screw 103 twists first screw hole 1012 and second screw hole 1021, can improve batch head 200 and screw 103's cooperation reliability, avoid screw 103 to break away from batch head 200, thereby avoided needing repeatedly to get the problem of screw 103, can improve the efficiency of twisting screw 103.

In some examples, one end of the suction hole may be connected to a vacuum source, and a suction is applied to the suction hole, and the other end of the suction hole may be attached to the screw 103. Thus, the structure is simple. Of course, it is understood that the manner of achieving negative pressure in the negative pressure hole may be other manners, such as disposing a wind wheel in the negative pressure hole.

According to the utility model discloses automatic screw machine screws, including foretell batch head 200.

According to the utility model discloses automatic screw machine screws through setting up foretell batch head 200, through set up second tooth portion 202 on batch head body 201, sets up first tooth portion 10321 on the nut 1032 of foretell screw 103 to when making batch head 200 rotate, second tooth portion 202 and first tooth portion 10321 mesh and cooperate in order to drive screw 103 and rotate around its own axis, thereby can realize the purpose of side screw 103.

The mobile terminal 100 according to the embodiment of the present invention includes the housing assembly 10.

According to the utility model discloses mobile terminal 100, through setting up foretell casing subassembly 10, through set up cooperation portion on nut 1032's periphery wall, thereby utilize the cooperation of screw spare and cooperation portion to realize the purpose of side screw 103, the straight up-down screw of axial that need not along screw 103, avoid dodging the setting in the correlation technique like this, the position of dodging the groove originally sets up can set up waterproof turn-ups 1013, thereby the waterproof width of center 101 has been improved, waterproof effect has been guaranteed, need not to widen the casing appearance, user's use experience can be improved.

The mobile terminal 100 may illustratively be any of a variety of types of computer system devices (a handset is illustratively shown in fig. 6 in one form) that are mobile or portable and that perform wireless communications. In particular, the mobile terminal 100 may be a mobile phone or a smart phone (e.g., an iPhone (TM) based phone), a Portable game device (e.g., Nintendo DS (TM), PlayStation Portable (TM), game Advance (TM), iPhone (TM)), a laptop, a PDA, a Portable internet appliance, a music player and a data storage device, other handheld devices and a head-mounted device (HMD) such as a watch, an in-ear phone, a pendant, a headset, etc., and the mobile terminal 100 may also be other wearable devices (e.g., a head-mounted device (HMD) such as electronic glasses, electronic clothing, an electronic bracelet, an electronic necklace, an electronic tattoo, the mobile terminal 100, or a smart watch).

The mobile terminal 100 may also be any of a number of mobile terminals 100, including but not limited to cellular telephones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, cameras, other media recorders, radios, medical devices, vehicle transportation equipment, calculators, programmable remote controls, pagers, laptop computers, desktop computers, printers, netbook computers, Personal Digital Assistants (PDAs), Portable Multimedia Players (PMPs), moving Picture experts group (MPEG-1 or MPEG-2) audio layer (MP3) players, portable medical devices, and digital cameras, and combinations thereof.

In some cases, mobile terminal 100 may perform a variety of functions (e.g., playing music, displaying videos, storing pictures, and receiving and sending telephone calls). If desired, the mobile terminal 100 may be a portable device such as a cellular telephone, media player, other handheld device, wristwatch device, pendant device, earpiece device, or other compact portable device.

The mobile terminal 100 may include control circuitry, which may include storage and processing circuitry. The storage and processing circuitry may be memory, such as hard disk drive memory, non-volatile memory (e.g., flash memory or other electronically programmable read-only memory used to form a solid state drive, etc.), volatile memory (e.g., static or dynamic random access memory, etc.), etc., and embodiments of the present application are not limited thereto. Processing circuitry in the storage and processing circuitry may be used to control operation of the mobile terminal 100. The processing circuitry may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.

The storage and processing circuitry may be used to run software in the mobile terminal 100 such as an Internet browsing application, a Voice Over Internet Protocol (VOIP) telephone call application, an email application, a media playing application, operating system functions, etc. Such software may be used to perform control operations such as camera-based image capture, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functionality implemented based on a status indicator such as a status indicator light of a light emitting diode, touch event detection based on a touch sensor, functionality associated with displaying information on multiple (e.g., layered) displays, operations associated with performing wireless communication functions, operations associated with collecting and generating audio signals, control operations associated with collecting and processing button press event data, and other functions in the mobile terminal 100, to name a few, embodiments of the present application are not limited.

The mobile terminal 100 may also include input-output circuitry. The input-output circuit may be used to enable the mobile terminal 100 to input and output data, i.e., to allow the mobile terminal 100 to receive data from external devices and also to allow the mobile terminal 100 to output data from the mobile terminal 100 to external devices. The input-output circuit may further include a sensor. The sensors may include ambient light sensors, proximity sensors based on light and capacitance, touch sensors (e.g., based on optical touch sensors and/or capacitive touch sensors, where the touch sensors may be part of a touch display screen or may be used independently as a touch sensor structure), acceleration sensors, and other sensors, among others.

The input-output circuitry may also include one or more displays, such as a display. The display may include one or a combination of liquid crystal displays, organic light emitting diode displays, electronic ink displays, plasma displays, displays using other display technologies. The display may include an array of touch sensors (i.e., the display may be a touch display screen). The touch sensor may be a capacitive touch sensor formed by a transparent touch sensor electrode (e.g., an Indium Tin Oxide (ITO) electrode) array, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, and the like, and the embodiments of the present application are not limited thereto.

The mobile terminal 100 may also include an audio component. The audio component may be used to provide audio input and output functions for the mobile terminal 100. Audio components in the mobile terminal 100 may include a speaker, microphone, buzzer, tone generator, and other components for generating and detecting sound.

The communication circuitry may be used to provide the mobile terminal 100 with the ability to communicate with external devices. The communication circuitry may include analog and digital input-output interface circuitry, and wireless communication circuitry based on radio frequency signals and/or optical signals. The wireless communication circuitry in the communication circuitry may include radio frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, filters, and antennas. For example, the wireless Communication circuitry in the Communication circuitry may include circuitry to support Near Field Communication (NFC) by transmitting and receiving Near Field coupled electromagnetic signals. For example, the communication circuitry 38 may include a near field communication antenna and a near field communication transceiver. The communications circuitry 38 may also include a cellular telephone transceiver and antenna, a wireless local area network transceiver circuit and antenna, and the like.

The mobile terminal 100 may further include a battery, a power management circuit, and other input-output units. The input-output units may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, light emitting diodes and other status indicators, etc.

A user may control the operation of mobile terminal 100 by entering commands through the input-output circuitry, and may use the output data of the input-output circuitry to enable receiving status information and other outputs from mobile terminal 100. In the description of the present invention, it is to be understood that the terms "axial" and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. A housing assembly for a mobile terminal, comprising:

the middle frame is provided with an accommodating cavity with one open side, a waterproof flanging extending towards the direction close to the center of the accommodating cavity is arranged on the end face of the open end of the accommodating cavity, the waterproof flanging is spaced from the bottom wall of the accommodating cavity, the middle frame is provided with a first threaded hole located in the bottom wall of the accommodating cavity, and the projection of the waterproof flanging on the bottom wall of the accommodating cavity covers at least part of the first threaded hole;

the main board is provided with a second threaded hole;

the screw, the screw includes the double-screw bolt and establishes the nut of the axial one end of double-screw bolt, be equipped with cooperation portion on the periphery wall of nut, cooperation portion be suitable for with screw member cooperation with through screw member drive the screw is rotatory so that the double-screw bolt with first screw hole with second screw hole threaded connection.

2. A housing assembly for a mobile terminal according to claim 1, wherein the peripheral wall of the nut is provided with a first flat surface and a second flat surface, the first flat surface and the second flat surface being arranged opposite in a radial direction of the nut, the first flat surface and the second flat surface defining the mating portion.

3. The housing assembly of a mobile terminal according to claim 2, wherein the first plane and the second plane are disposed in parallel.

4. The housing assembly of a mobile terminal according to claim 2, wherein the first plane and the second plane are respectively plural, the plural first planes and the plural second planes are alternately arranged in a circumferential direction of the nut, and adjacent first planes and second planes have an included angle to form the plural engaging portions.

5. The housing assembly of a mobile terminal according to claim 1, wherein the nut has a first plurality of teeth on an outer peripheral wall thereof, the first plurality of teeth being spaced apart along a circumference of the nut, the first plurality of teeth defining the mating portion.

6. The housing assembly of a mobile terminal according to claim 5, wherein the screw is a magnetic member.

7. The housing assembly of a mobile terminal according to any of claims 1-5, wherein the screw is an integrally formed piece.

8. A mobile terminal characterized in that it comprises a housing assembly according to any one of claims 1-7.

9. A batch head, comprising:

a bit body;

a plurality of second teeth provided on the peripheral wall of the bit body and spaced apart along the circumferential direction of the bit body, the second teeth adapted to mesh with the first teeth of the screw according to any one of claims 5 to 6 to drive the screw to rotate when the bit is rotated.

10. The bit as claimed in claim 9 wherein the bit is a magnetic element magnetically attracted to the screw.

11. The bit as claimed in claim 9 wherein the first and second teeth are both straight or skewed teeth.

12. The batch head according to claim 9, wherein the batch head body is provided with a negative pressure hole for adsorbing the screw.

13. An automatic screw driving machine, characterized in that it comprises a batch head according to any one of claims 9 to 12.

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