CN112217926A - Protective cover plate with pressing fixing structure for lithium battery of mobile phone - Google Patents

Abstract

The invention relates to the technical field of battery protection, in particular to a protective cover plate with a pressing fixing structure for a lithium battery of a mobile phone, which comprises a device body, wherein the device body comprises a protective plate, one end of the protective plate is provided with a battery jar, one end of the battery jar is provided with a protective cover body, two sides of one end of the protective plate are respectively provided with a group of fixing mechanisms, the number of each group of fixing mechanisms is two, and each fixing mechanism comprises an inserting groove. According to the invention, the protection plate, the protection cover body and the fixing mechanism are arranged, so that the lithium battery and the mobile phone can be more stably fixed to a certain extent by using the protection cover body and the protection plate, the damage of the lithium battery when the mobile phone receives an accident is reduced, the service life of the lithium battery at the output port is longer, meanwhile, the lithium battery can be more stably fixed by using the adsorption and limiting of the magnet plate and the iron block, the friction force generated when the lithium battery is clamped and limited to be inserted and installed can be reduced by using the ball, and the device is more humanized.

Description

Protective cover plate with pressing fixing structure for lithium battery of mobile phone

Technical Field

The invention relates to the technical field of battery protection, in particular to a protective cover plate with a pressing and fixing structure for a lithium battery of a mobile phone.

Background

Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996, and the safety, specific capacity, self-discharge rate and cost performance of rechargeable batteries were all superior to those of lithium ion batteries. Due to its own high technical requirement limits, only a few countries of companies are producing such lithium metal batteries.

The mobile phones are classified into smart phones and non-smart phones, the performance of the smart phones is generally better than that of the non-smart phones, but the performance of the non-smart phones is more stable than that of the smart phones, and most of the non-smart phones and the smart phones use a CPU of the british ARM company architecture. The dominant frequency of smart mobile phone is higher, the functioning speed is fast, the procedure task is quicker, daily convenience more, present cell-phone is as indispensable must in people's daily life already, and wherein the lithium cell then is the power source of cell-phone, and present cell-phone is the all-in-one more difficult when leading to its battery to change for the most so, but present partial comparatively cheap cell-phone is receiving the foreign object striking or when self fall to the ground very easily cause rocking of battery, just so cause easily because the friction produces the electric spark between battery output port department and the conducting strip, and then lead to the ageing of the delivery outlet of battery to accelerate, in order to reduce the ageing speed of lithium cell output port, consequently need design a cell-phone lithium cell with having the protective cover who presses fixed knot structure.

Disclosure of Invention

The invention aims to provide a protective cover plate with a pressing and fixing structure for a lithium battery of a mobile phone, which is used for solving the problems that the existing part of the prior cheap mobile phone provided by the background technology is easy to cause the shaking of the battery when the mobile phone is impacted by a foreign object or falls to the ground, so that electric sparks are easily generated between a battery output port and a conducting strip due to friction, the aging of the battery output port is accelerated, and the aging speed of the lithium battery output port is reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a protective cover plate with a pressing fixing structure for a lithium battery of a mobile phone comprises a device body, wherein the device body comprises a protective plate, one end of the protective plate is provided with a battery groove, one end of the battery groove is provided with a protective cover body, two sides of one end of the protective plate are respectively provided with a group of fixing mechanisms, the number of each group of fixing mechanisms is two, each fixing mechanism comprises a slot, one end of the protective plate is provided with a slot, a card and a limiting plug are inserted into the slots, one end of the card and one end of the limiting plug are connected onto the protective cover body, one surface of the inner wall of each slot is provided with a card and a limiting groove, one surface of each card and one surface of each spring is fixedly provided with a card block, one surface of each card block is provided with an arc-shaped groove, the inner wall of the slot at one end of each card and one end of the, the utility model discloses a mechanism for fixing the battery, including adsorption tank, iron plate, lubrication hole, ball, inner wall one end, the one end of adsorption tank, the one end embedding of adsorption tank installs magnet board, insert the iron plate in the adsorption tank, and the one end of iron plate is connected and is blocked and insert, the lubrication hole has been seted up to the one side of fixture block, the ball has been placed in the lubrication hole, the inner wall one side of battery jar is equipped with stabilizing mean, and stabilizing mean's quantity is three, the one end of visor body is equipped with just takes the mechanism, the both sides of visor body one end are all fixed mounting have stop gear.

Preferably, the stabilizing mechanism comprises a stabilizing groove, the stabilizing groove is formed in one side of the inner wall of the battery jar, two stabilizing springs are fixedly mounted on the inner wall of the stabilizing groove, and a stabilizing plate is fixedly mounted on one side of each stabilizing spring.

Preferably, the inner wall of the stabilizing groove on one side of the stabilizing plate is fixedly provided with a stabilizing sleeve, one side of the stabilizing sleeve is provided with a stabilizing hole, a stabilizing rod is inserted into the stabilizing hole, and one side of the stabilizing rod is connected to the stabilizing plate.

Preferably, one end of the stabilizing plate is arc-shaped.

Preferably, just, it includes the screen board to take the mechanism, the screen board is installed in the one side embedding of mounting groove, the visor body of screen board both sides is fixed mounting all has a set of mounting groove, and the quantity of mounting groove is two, and is two sets of the mounting hole has all been seted up to one side that the mounting groove is close to each other, and is two sets of all inserted U type pole in the mounting hole, the one end fixed mounting of screen board has solid fixed ring, and solid fixed ring's quantity is two, two gu fixed ring's one end fixed mounting has fixed tooth.

Preferably, stop gear includes the stop collar, fixed mounting has the stop collar on the visor body, the shifting chute has been seted up to the one end of stop collar, the lead screw has been cup jointed through the bearing in inner wall one side of shifting chute, and outside one side of lead screw extended the stop collar, the thread bush has been cup jointed on the lead screw, the one end fixed mounting of thread bush has the loop bar, the dwang has been cup jointed through the pivot on the loop bar, fixed mounting has the supporting rod on the dwang, and the quantity of supporting rod is two, the groove of accomodating has all been seted up on the two sides of shifting chute.

Preferably, a sliding groove is formed in one end of the inner wall of the moving groove, a sliding block is slidably mounted in the sliding groove, and one end of the sliding block is connected to the threaded sleeve.

Preferably, a measuring hole is formed in the inner wall of the sliding groove, a measuring rod is inserted into the measuring hole, one side of the measuring rod is connected to the sliding block, and the measuring rod is provided with scale marks.

Compared with the prior art, the invention has the beneficial effects that:

1. through being provided with the guard plate, visor body and fixed establishment, can utilize visor body and guard plate to fix lithium cell and cell-phone in certain more steadily like this, reduce the injury that the lithium cell received when the cell-phone receives the accident, and then make the life of lithium cell output port department longer, it is spacing to utilize the absorption of magnet board and iron plate simultaneously, make the lithium cell can fix more stably, and utilize the ball can reduce the card and spacing frictional force when inserting the installation, and then make this device have the hommization more.

2. Through being provided with the stable groove, stabilize spring and steadying plate, make this device utilize the elastic potential energy of stabilizing the spring to further increase its stability when carrying out the lithium cell installation like this, also make the lithium cell receive certain buffer distance in the striking in the hand simultaneously, avoid lithium cell delivery outlet department excessively to extrude the conducting strip, and then prevent that the conducting strip from being excessively extruded and influencing its normal use, thereby make the security of this device obtain reinforcing to a certain extent, let this device user of being convenient for more use and operation, this mechanism simple structure simultaneously, need not the manual work and further operate, make this device be convenient for more promote production.

3. Through being provided with stop collar, lead screw, thread bush, loop bar, dwang, accomodate groove and supporting rod, make this device can be applicable to the battery of more models like this, this device also has certain effect when former dress battery to the non-cell-phone to increase the suitability of this device, make the practicality of this device stronger, utilize simultaneously to accomodate the groove and can accomodate the supporting rod, avoid the supporting rod to influence the normal installation of lithium cell at unoperated state.

Drawings

FIG. 1 is a schematic top sectional view of a shield plate according to the present invention;

FIG. 2 is a schematic cross-sectional view of a protective cover of the present invention;

FIG. 3 is a schematic top sectional view of a protective cover structure according to the present invention;

FIG. 4 is a schematic side sectional view of the fixing mechanism of the present invention;

FIG. 5 is a schematic side sectional view of the stabilizing mechanism of the present invention;

FIG. 6 is a side view of the stabilizer slot structure of the present invention;

FIG. 7 is a schematic sectional view of the front side of the structure of the spacing mechanism of the present invention;

fig. 8 is an enlarged view of a portion of the structure shown in fig. 1.

In the figure: 1. a device body; 110. a protection plate; 111. a battery case; 112. a protective cover body; 2. a fixing mechanism; 210. a slot; 211. a card and a limit plug; 212. a clamp and a limit groove; 213. a card and a spring; 214. a clamping block; 215. an arc-shaped slot; 216. an adsorption tank; 217. a magnet plate; 218. an iron block; 219. a lubrication hole; 220. a ball bearing; 3. a stabilizing mechanism; 310. a stabilizing slot; 311. a stabilizing spring; 312. a stabilizing plate; 313. a stabilizing sleeve; 314. a stabilization well; 315. a stabilizer bar; 4. a carrying mechanism; 410. mounting grooves; 411. mounting holes; 412. a U-shaped rod; 413. a fixing ring; 414. a screen plate; 415. fixing teeth; 5. a limiting mechanism; 510. a limiting sleeve; 511. a moving groove; 512. a screw rod; 513. a threaded sleeve; 514. a loop bar; 515. rotating the rod; 516. a receiving groove; 517. a clamping rod; 518. a chute; 519. a slider; 520. measuring a hole; 521. a measuring rod; 522. scale lines are marked.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, an embodiment of the present invention:

a protective cover plate with a pressing fixing structure for a lithium battery of a mobile phone comprises a device body 1, wherein the device body 1 comprises a protective plate 110, one end of the protective plate 110 is provided with a battery groove 111, one end of the battery groove 111 is provided with a protective cover body 112, two sides of one end of the protective plate 110 are respectively provided with a group of fixing mechanisms 2, the number of each group of fixing mechanisms 2 is two, each fixing mechanism 2 comprises a slot 210, one end of the protective plate 110 is provided with a slot 210, a card and a limiting plug 211 are inserted into the slot 210, one end of the card and limiting plug 211 is connected onto the protective cover body 112, one side of the inner wall of the slot 210 is provided with a card and limiting groove 212, one side of the inner wall of the card and limiting groove 212 is fixedly provided with a card and a spring 213, one side of the card and spring 213 is fixedly provided with a fixture block 214, one side of the fixture block 214 is provided with an arc-, a magnet plate 217 is embedded and installed at one end of the inner wall of the adsorption groove 216, an iron block 218 is inserted into the adsorption groove 216, one end of the iron block 218 is connected to the clamping and limiting insert 211, a lubricating hole 219 is formed in one surface of the clamping block 214, balls 220 are placed in the lubricating hole 219, stabilizing mechanisms 3 are arranged on one surface of the inner wall of the battery jar 111, the number of the stabilizing mechanisms 3 is three, a carrying mechanism 4 is arranged at one end of the protective cover body 112, two limiting mechanisms 5 are fixedly installed on two sides of one end of the protective cover body 112, and the number of the limiting mechanisms 5 is two, so that the lithium battery and the mobile phone can be more stably fixed to a certain extent by using the protective cover body 112 and the protective plate 110, damage to the lithium battery when the mobile phone receives an accident is reduced, the service life of the lithium battery at an output port is further prolonged, and the lithium battery can be more stably, and the friction force between the card and the limit plug 211 during installation can be reduced by utilizing the ball 220, so that the device has more humanization.

Further, the stabilizing mechanism 3 comprises a stabilizing groove 310, a stabilizing groove 310 is formed on one side of the inner wall of the battery container 111, a stabilizing spring 311 is fixedly mounted on the inner wall of the stabilizing groove 310, and the number of the stabilizing springs 311 is two, a stabilizing plate 312 is fixedly installed on one side of the two stabilizing springs 311, this makes the present device further increase its stability by using the elastic potential energy of the stabilizing spring 311 when the lithium battery is installed, meanwhile, the lithium battery can have a certain buffer space when being impacted by hands, the conducting strip is prevented from being excessively extruded at the output port of the lithium battery, thereby preventing the conductive sheet from being excessively extruded to influence the normal use of the conductive sheet, enhancing the safety of the device to a certain degree, facilitating the use and operation of the device for users, meanwhile, the mechanism is simple in structure, manual further operation is not needed, and the device is more convenient to popularize and produce.

Further, a stabilizing sleeve 313 is fixedly mounted on the inner wall of the stabilizing groove 310 on one surface of the stabilizing plate 312, a stabilizing hole 314 is formed in one surface of the stabilizing sleeve 313, a stabilizing rod 315 is inserted into the stabilizing hole 314, and one surface of the stabilizing rod 315 is connected to the stabilizing plate 312, so that the movement stroke of the stabilizing plate 312 has better guidance, and the deviation of the movement stroke is avoided, thereby avoiding poor contact between the output port of the battery and the wire contact caused by the deviation of the stabilizing plate 312 when the batteries of different models are used, and further improving the safety of the device.

Further, the shape of stabilizer plate 312 one end is the arc, makes the lithium cell can be more convenient when the installation like this for the battery can directly extrude stabilizer plate 312's arcwall face and make it extrude stabilizer spring 311, reduces staff's the operating procedure and the work degree of difficulty, has promoted staff's work efficiency indirectly.

Further, it includes gauze element 414 just to take mechanism 4, gauze element 414 is installed in the one side embedding of mounting groove 410, the protective cover body 112 of gauze element 414 both sides all fixed mounting have a set of mounting groove 410, and the quantity of mounting groove 410 is two, mounting hole 411 has all been seted up to one side that two sets of mounting grooves 410 are close to each other, U type pole 412 has all been inserted in two sets of mounting holes 411, the one end fixed mounting of gauze element 414 has solid fixed ring 413, and the quantity of solid fixed ring 413 is two, the one end fixed mounting of two solid fixed ring 413 has fixed tooth 415, it can be more convenient when taking to make protective cover body 112 like this, can pack up when not using simultaneously, avoid U type pole 412 to occupy too much space, thereby it is more reasonable to let this device to the utilization in space, and gauze element 414 makes things convenient for the lithium cell to dispel the heat when receiving protection and.

Further, the limiting mechanism 5 comprises a limiting sleeve 510, the limiting sleeve 510 is fixedly mounted on the protective cover body 112, a moving groove 511 is formed in one end of the limiting sleeve 510, a lead screw 512 is sleeved on one side of the inner wall of the moving groove 511 through a bearing, one side of the lead screw 512 extends out of the limiting sleeve 510, a threaded sleeve 513 is sleeved on the lead screw 512, a sleeve rod 514 is fixedly mounted at one end of the threaded sleeve 513, a rotating rod 515 is sleeved on the sleeve rod 514 through a rotating shaft, two clamping rods 517 are fixedly mounted on the rotating rod 515, two clamping rods 517 are arranged on two sides of the moving groove 511, and the accommodating grooves 516 are formed in two sides of the moving groove 511, so that the device can be suitable for batteries with more types, and has a certain function when aiming at the original battery of a non-mobile phone, thereby increasing the applicability of the device, and enhancing the practicability of the device, and meanwhile, the clamping rods 517 can be accommodated by utilizing the accommodating, the normal installation of the lithium battery is prevented from being influenced by the fact that the clamping rod 517 is in a non-working state.

Furthermore, a sliding groove 518 is formed in one end of the inner wall of the moving groove 511, a sliding block 519 is installed in the sliding groove 518 in a sliding mode, and one end of the sliding block 519 is connected to the threaded sleeve 513, so that the threaded sleeve 513 has stability during movement, and vibration during movement is reduced.

Further, a measuring hole 520 is formed in the inner wall of the sliding groove 518, a measuring rod 521 is inserted into the measuring hole 520, one side of the measuring rod 521 is connected to the sliding block 519, and a scale mark 522 is formed in the measuring rod 521, so that the sliding block 519 can move more accurately according to the positions of the measuring rod 521 and the measuring hole 520 and the reading of the scale mark 522, and further the accuracy of the device is further improved.

The working principle is as follows: when the staff uses this device, at first open the mounting panel at cell-phone back, install protection plate 110 on the mounting panel of cell-phone through screw or coagulating glue afterwards, later aim at the conducting block in breach department with protection plate 110, make protection plate 110 can fix the back half position at the cell-phone, prepare after the work is accomplished, put into battery jar 111 with the lithium cell, aim at the conducting block with the lithium cell afterwards, put down the bottom of lithium cell finally, the one end of lithium cell can extrude on the cambered surface on the stabilising plate 312 when putting down, the lithium cell bottom is extruded to stabilising plate 312 afterwards and is made stabilising spring 311 take place elastic deformation, stabilising plate 312 is when taking place to remove simultaneously, stabiliser bar 315 also can insert in stabilising hole 314, make stabilising plate 312 remove according to certain orbit.

Then, the protective cover body 112 is taken out, and the protective cover body 112 is covered on the lithium battery. If the lithium battery is the original battery of the mobile phone, the positions of the clamping rod 517 and the accommodating groove 516 are kept to be fixed, so that the clamping rod 517 does not affect the lithium battery, if the lithium battery is not the original battery of the mobile phone, the battery is completed according to the same steps at this time, the screw rod 512 rotates through the operation of a screwdriver and the like, when the screw rod 512 rotates, the screw sleeve 513 moves under the action of the rotation of the screw rod 512 and the action of the upper threads, meanwhile, the sliding block 519 also moves in the sliding groove 518 when the screw sleeve 513 moves, meanwhile, the measuring rod 521 passes through the measuring hole 520 when the sliding block 519 moves, then, the moving position of the sliding block 519 is judged according to the clamping and the position of the scale mark 522 and the measuring hole 520, when the screw sleeve 513 moves, the sleeve rod 514 moves, then, the rotating rod 515 is rotated, so that the clamping rod 517 is separated from the accommodating groove 516, and meanwhile, the limiting rod on one side of the rotating rod 515 limits the rotating angle of the rotating, avoid it to excessively rotate, later make thread bush 513, dwang 515 take place to remove and finally utilize two holding poles 517 to carry out the centre gripping to the lithium cell through controlling two lead screws 512, let the lithium cell can place in battery jar 111 more steadily.

After the adjustment is completed, the clamping and limiting plug 211 is inserted into the insertion groove 210, so that the clamping and limiting plug 211 extrudes the clamping block 214, then the clamping block 214 is extruded to displace and the clamping and spring 213 deforms, so that the clamping block 214 no longer blocks the movement of the clamping and limiting plug 211, finally, when the arc-shaped groove 215 is formed in front of the clamping block 214, the clamping and spring 213 releases elastic potential energy to enable the clamping block 214 to be inserted into the rotating rod 515 again, at the moment, the iron block 218 is also inserted into the adsorption groove 216, and the iron block 218 and the magnet plate 217 are also arranged in the groove.

After the device is installed, the back cover of the mobile phone is covered, and then the installation process of the lithium battery of the mobile phone can be completed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides a cell-phone lithium cell is with having protection apron of pressing fixed knot structure, includes device body (1), its characterized in that: the device body (1) comprises a protection plate (110), a battery groove (111) is formed in one end of the protection plate (110), a protection cover body (112) is arranged at one end of the battery groove (111), a group of fixing mechanisms (2) are arranged on two sides of one end of the protection plate (110), the number of each group of fixing mechanisms (2) is two, each fixing mechanism (2) comprises a slot (210), a slot (210) is formed in one end of the protection plate (110), a card and a limiting plug (211) are inserted into the slot (210), one end of each card and limiting plug (211) is connected onto the protection cover body (112), one side of the inner wall of each slot (210) is provided with a card and limiting groove (212), one side of the inner wall of each card and limiting groove (212) is fixedly provided with a card and a spring (213), one side of each card and spring (213) is fixedly provided with a fixture block (214, an arc-shaped groove (215) is arranged on the clamp and the limiting insert (211) on one surface of the clamping block (214), an adsorption groove (216) is arranged on the inner wall of the slot (210) at one end of the card and the limit plug (211), a magnet plate (217) is embedded and installed at one end of the inner wall of the adsorption groove (216), an iron block (218) is inserted into the adsorption groove (216), one end of the iron block (218) is connected with the clamp and the limiting insert (211), one surface of the clamp block (214) is provided with a lubricating hole (219), a ball (220) is arranged in the lubricating hole (219), a stabilizing mechanism (3) is arranged on one surface of the inner wall of the battery jar (111), the number of the stabilizing mechanisms (3) is three, one end of the protective cover body (112) is provided with a convenient taking mechanism (4), both sides of visor body (112) one end all fixed mounting have stop gear (5), and stop gear (5)'s quantity is two.

2. The protective cover plate with the pressing and fixing structure for the lithium battery of the mobile phone according to claim 1, is characterized in that: stabilizing mean (3) is including stabilizing slot (310), stabilizing slot (310) have been seted up to the inner wall one side of battery jar (111), fixed mounting has stabilizing spring (311) on the inner wall of stabilizing slot (310), and the quantity of stabilizing spring (311) is two, two stabilizing spring's (311) one side fixed mounting has stabilizer plate (312).

3. The protective cover plate with the pressing and fixing structure for the lithium battery of the mobile phone according to claim 2, is characterized in that: the inner wall of the stabilizing groove (310) on one side of the stabilizing plate (312) is fixedly provided with a stabilizing sleeve (313), one side of the stabilizing sleeve (313) is provided with a stabilizing hole (314), a stabilizing rod (315) is inserted into the stabilizing hole (314), and one side of the stabilizing rod (315) is connected to the stabilizing plate (312).

4. The protective cover plate with the pressing and fixing structure for the lithium battery of the mobile phone according to claim 2, is characterized in that: one end of the stabilizing plate (312) is arc-shaped.

5. The protective cover plate with the pressing and fixing structure for the lithium battery of the mobile phone according to claim 1, is characterized in that: just, take mechanism (4) including screen cloth board (414), screen cloth board (414) are installed in the one side embedding of mounting groove (410), the visor body (112) of screen cloth board (414) both sides all fixed mounting have a set of mounting groove (410), and the quantity of mounting groove (410) is two, and is two sets of mounting hole (411) have all been seted up to one side that mounting groove (410) are close to each other, and are two sets of U type pole (412) have all been inserted in mounting hole (411), the one end fixed mounting of screen cloth board (414) has solid fixed ring (413), and the quantity of solid fixed ring (413) is two, two the one end fixed mounting of solid fixed ring (413) has fixed tooth (415).

6. The protective cover plate with the pressing and fixing structure for the lithium battery of the mobile phone according to claim 1, is characterized in that: stop gear (5) include stop collar (510), fixed mounting has stop collar (510) on visor body (112), shifting chute (511) have been seted up to the one end of stop collar (510), lead screw (512) have been cup jointed through the bearing in inner wall one side of shifting chute (511), and outside one side of lead screw (512) extended stop collar (510), screw thread bush (513) have been cup jointed on lead screw (512), the one end fixed mounting of screw thread bush (513) has loop bar (514), it has dwang (515) to cup joint through the pivot on loop bar (514), fixed mounting has supporting rod (517) on dwang (515), and the quantity of supporting rod (517) is two, two sides of shifting chute (511) have all been seted up and have been accomodate groove (516).

7. The protective cover plate with the pressing and fixing structure for the lithium battery of the mobile phone according to claim 6, characterized in that: a sliding groove (518) is formed in one end of the inner wall of the moving groove (511), a sliding block (519) is installed in the sliding groove (518) in a sliding mode, and one end of the sliding block (519) is connected to the threaded sleeve (513).

8. The protective cover plate with the pressing and fixing structure for the lithium battery of the mobile phone according to claim 7, is characterized in that: seted up measuring aperture (520) on the inner wall of spout (518), inserted measuring stick (521) in measuring aperture (520), and one side of measuring stick (521) is connected in slider (519), scale mark (522) have been seted up on measuring stick (521).

Images