CN210724251U

CN210724251U - Adjustable wireless charger

Info

Publication number: CN210724251U
Application number: CN201921884553.2U
Authority: CN
Inventors: 张平; 朱小玲; 臧桂林; 龙章海; 林艳梅
Original assignee: Shenzhen Kafulle Electronic Co ltd
Current assignee: Shenzhen Kafulle Electronic Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-06-09
Anticipated expiration: 2029-11-01

Abstract

The utility model relates to a wireless charger with adjustable, the on-line screen storage device comprises a base, install the back support portion that is used for supporting portable electrical apparatus on the base, be provided with the wireless power output ware that is used for charging portable electrical apparatus in the back support portion, its characterized in that: the base is provided with a connecting frame in an inclined mode, the back supporting portion is connected with the connecting frame in a sliding mode along the inclined direction of the connecting frame, and a first limiting assembly for limiting the back supporting portion to slide is mounted on the back supporting portion. The utility model discloses a thereby the adjustment to back of the body position realizes the alignment of wireless power receiver and wireless power follower, has the effect of the quality of charging of guaranteeing to the portable electrical apparatus that can carry out wireless charging.

Description

Adjustable wireless charger

Technical Field

The utility model belongs to the technical field of the wireless technique that charges and specifically relates to a wireless charger with adjustable.

Background

At present, in order to more conveniently charge the battery of the portable electrical appliance, people have developed a wireless charging technology for charging the portable electrical appliance through wireless transmission of electric energy, and a wireless charger popular in the market is used for wirelessly charging the portable electrical appliance such as a mobile phone and a tablet personal computer through the principle.

The wireless power receiver is arranged on the existing portable electrical appliance capable of being wirelessly charged, the existing wireless charger comprises a base, a back supporting part is obliquely arranged on the base, a wireless power output device is arranged on the back supporting part, when the mobile phone, a tablet personal computer and other portable electrical appliances are charged, a user places the portable electrical appliance on the base and enables the portable electrical appliance to be abutted against the back supporting part, and meanwhile the position of the wireless power receiver is aligned to the position of the wireless power output device, so that the charging of the portable electrical appliance is realized through wireless power transmission between the wireless power output device and the wireless power receiver, meanwhile, the user can normally watch the content on the screen of the portable electrical appliance when the mobile phone, the tablet personal computer and other portable electrical appliances are charged, and the normal work and life of the portable electrical appliance charging user are ensured.

The above prior art solutions have the following drawbacks: the back of body portion of supporting on the current wireless charger is fixed on the base, then the fixed position that wireless power receiver also, and the portable electrical apparatus that current can carry out wireless charging is numerous, and when charging to the portable electrical apparatus that the big small dimension that can carry out wireless charging is different, the wireless power receiver mounted position is different through same wireless charger, the condition that wireless power receiver and wireless power follower can't be aimed at easily appears, influences the charging quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wireless charger with adjustable, thereby realize the alignment of wireless power receiver and wireless power follower through the adjustment to back of part position, have the advantage of the quality of charging of guaranteeing to the portable electrical apparatus that can carry out wireless charging.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a wireless charger with adjustable, includes the base, install the back portion of supporting that is used for supporting portable electrical apparatus on the base, be provided with the wireless power follower that is used for charging portable electrical apparatus in the back portion, its characterized in that: the base is provided with a connecting frame in an inclined mode, the back supporting portion is connected with the connecting frame in a sliding mode along the inclined direction of the connecting frame, and a first limiting assembly for limiting the back supporting portion to slide is mounted on the back supporting portion.

By adopting the technical scheme, when a user needs to wirelessly charge the portable electric appliance capable of being wirelessly charged, the user slides the back supporting part according to the specification of the portable electric appliance needing to be charged so as to adjust the position of the wireless power output device, so that the wireless power output device can be aligned to the wireless power receiver on the portable electric appliance, then the user limits the sliding of the back supporting part through the first limiting component, and then the user places the portable electric appliance on the base and supports the portable electric appliance from the back by the back supporting part, so that the wireless power output device is continuously aligned to the wireless power receiver on the portable electric appliance, and the charging quality of the portable electric appliance capable of being wirelessly charged is ensured; the wireless charger can meet the portable electrical appliances of various specifications which can be charged wirelessly by adjusting the position of the back supporting part, and a user does not need to prepare different wireless chargers for different portable products, thereby being convenient to operate.

The utility model discloses further set up to: first spacing subassembly includes the locking piece, first logical groove has been seted up on the link, the locking piece rotates with back support portion and is connected, the locking piece is located first logical inslot, set up along link incline direction on the first logical inslot wall and be no less than two tooth's sockets, lateral part has two dogtooths along locking piece rotation direction circumference evenly distributed on the locking piece, dogtooth and tooth's socket joint, the link has elasticity.

Through adopting above-mentioned technical scheme, after the user slides back to the assigned position, the operator rotates the locking piece and drives the dogtooth and rotate, and elastic deformation takes place for the link under the promotion of dogtooth, and final dogtooth and the tooth's socket joint that corresponds on the position to the slip of restraining back to the portion realizes the locking to the locking piece and the fixed of back to the portion, prevents to carry on the back when charging portable electrical apparatus to the removal of portion and influence normal charging, convenient operation.

The utility model discloses further set up to: the wireless electric energy output device is arranged in the back supporting part, a first clamping block is fixed on the locking block, a first opening for the first clamping block to penetrate through is formed in the back supporting part, a second clamping block is fixed on one end, entering into the back supporting part, of the first clamping block in the inclined direction of the connecting frame, and the second clamping block is in sliding fit with the inner wall of the back supporting part in the rotating direction of the locking block.

By adopting the technical scheme, when a user rotates the locking block, the first clamping block and the second clamping block are driven to synchronously rotate, and the second clamping block is in sliding fit with the inner wall of the back supporting part along the rotation direction of the locking block, so that the locking block is rotatably connected with the back supporting part.

The utility model discloses further set up to: the first clamping block is in sliding fit with the inner wall of the first opening along the direction perpendicular to the inclination direction of the connecting frame, and a second opening for the second clamping block to penetrate through is formed in the inner wall of the first opening.

Through adopting above-mentioned technical scheme, the user aims at the second opening with the second fixture block and moves the locking piece along the direction of perpendicular to link incline direction, makes second fixture block pass second opening, first fixture block pass first opening, and the user rotates the locking piece afterwards, makes the back of the body portion inner wall of supporting block the second fixture block, and then restricts the locking piece and along the removal of the direction of perpendicular to link incline direction, has realized the assembly to the locking piece, convenient operation.

The utility model discloses further set up to: the back support part is fixedly provided with a first lug which is positioned in the first through groove, and the locking block is provided with a second through groove which is used for the first lug to pass through and is abutted against the inner wall of the back support part.

Through adopting above-mentioned technical scheme, the user with first fixture block aim at the second opening and when removing the locking piece in order to realize the installation to the locking piece, the user accessible is aimed at first lug with the second through-slot and is realized supplementary realization first fixture block and the alignment of second opening, convenient operation.

The utility model discloses further set up to: and the first lug is provided with a jack for inserting an external power transmission plug.

By adopting the technical scheme, the first convex block is exposed through the first through groove all the time, the jack is exposed through the second through groove all the time, the situation that the jack cannot be arranged on the side part of the back supporting part due to the fact that the thickness of the back supporting part is thin is prevented, the jack is prevented from being blocked by the connecting frame due to the fact that the jack is arranged at the other position of the back supporting part facing to one surface of the connecting frame due to the fact that the back supporting part slides, the situation that the jack cannot be arranged on the side part of the back supporting part due to the fact that the thickness of the back supporting part is thin is prevented, it is ensured that an external power transmission plug.

The utility model discloses further set up to: and a hand-held block is fixed on one surface of the locking block, which is far away from the back supporting part, and the hand-held block is in running fit with the connecting frame.

By adopting the technical scheme, a user can rotate the locking block by rotating the hand-holding block, the locking block is prevented from entering the through groove after entering the through groove, the groove wall of the through groove limits the manual rotation of the user to the locking block, and the operation is convenient.

The utility model discloses further set up to: a guide bulge is fixed on one surface of the back abutting portion abutted to the connecting frame along the inclined direction of the connecting frame, and the guide bulge is in sliding fit with the connecting frame along the inclined direction of the connecting frame.

Through adopting above-mentioned technical scheme, protruding and link edge link incline direction sliding fit of direction, the elastic deformation that the link took place when the direction arch restricted the dogtooth and rotated, only promote first logical groove inner wall and take place deformation when making the dogtooth rotate, the elastic recovery ability that prevents the link whole emergence elastic deformation back link descends gradually, prevent that first logical groove shape from changing and first logical groove both sides wall interval increase, prevent again that long-time back dogtooth can't with the tooth's socket joint, prolong the life of this wireless charger.

The utility model discloses further set up to: and the base is provided with a friction block which is abutted against the bottom of the portable electric appliance.

Through adopting above-mentioned technical scheme, the sliding of clutch blocks and portable electrical apparatus bottom butt through frictional force to portable electrical apparatus restricts, makes the portable electrical apparatus back that is charging continuously support on the back portion, thereby prevents that portable electrical apparatus from sliding bottom portable electrical apparatus when charging and making portable electrical apparatus take place the upset, has interrupted the wireless charging to portable electrical apparatus after preventing portable electrical apparatus from overturning.

The utility model discloses further set up to: the base is provided with a butt block for abutting against the bottom of the portable electric appliance, and the friction block is arranged between the butt block and the connecting frame.

Through adopting above-mentioned technical scheme, to the portable electrical apparatus that thickness is greater than clutch blocks thickness, the butt piece supports this portable electrical apparatus when this portable electrical apparatus charges, prevents that this portable electrical apparatus from taking place to overturn and having interrupted the charging to this portable electrical apparatus, prevents simultaneously that this portable electrical apparatus from taking place to overturn the back and dropping subaerial and causing the damage of this portable electrical apparatus.

To sum up, the utility model discloses a beneficial technological effect does:

the user slides the back supporting part according to the specification of the portable electric appliance needing to be charged so as to adjust the position of the wireless electric energy output device, so that the wireless electric energy output device can be aligned to a wireless electric energy receiver on the portable electric appliance, and then the user limits the sliding of the back supporting part through the first limiting component so that the wireless electric energy output device is continuously aligned to the wireless electric energy receiver on the portable electric appliance, and the charging quality of the portable electric appliance capable of being charged wirelessly is ensured;

a user rotates the locking block to drive the convex teeth to rotate, the convex teeth push the connecting frame to generate elastic deformation, and finally the two convex teeth are clamped into the tooth grooves, so that the sliding of the back supporting part is limited, the back supporting part is prevented from moving to influence normal charging when the portable electric appliance is charged, and the operation is convenient;

the user makes through removing the locking piece and passes second fixture block, first fixture block second opening, first opening and rotation locking piece respectively to realize the assembly of locking piece, convenient operation.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a bottom schematic view of the present embodiment;

FIG. 3 is a schematic structural view of the link frame and the locking block in the present embodiment;

FIG. 4 is a schematic back view of the back support portion of the present embodiment;

FIG. 5 is a back schematic view of the present embodiment;

FIG. 6 is an enlarged view at A in FIG. 3;

fig. 7 is a schematic structural diagram of the extension base and the charging base in this embodiment.

In the figure, 1, a base; 2. a first mounting groove; 3. mounting holes; 4. a connecting frame; 5. a first groove; 6. a friction block; 7. a butting block; 8. a first mounting block; 9. a second mounting block; 10. a first through groove; 11. a tooth socket; 12. a back support part; 13. a first bump; 14. a jack; 15. a locking block; 16. a second through groove; 17. a convex tooth; 18. a hand-held block; 19. a first clamping block; 20. a first opening; 21. a second fixture block; 22. a second opening; 23. an extension base; 24. a second groove; 25. A plastic clamping block; 26. a second bump; 27. a third through groove; 28. a charging seat; 29. a second mounting groove; 30. an empty groove; 31. A first charging slot; 32. a first through hole; 33. a second charging slot; 34. a second through hole; 35. a wire clamping groove; 36. and a guide projection.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses an adjustable wireless charger, including base 1, base 1 is last to have seted up first mounting groove 2 in the bottom, base 1 has seted up mounting hole 3 in the top, install link 4 on the base 1, link 4 passes mounting hole 3 and protrudes base 1 top surface, link 4 has elasticity, base 1 top surface is seted up first recess 5, the bonding is fixed with the clutch blocks 6 with the bottom butt of portable electrical apparatus in the first recess 5, clutch blocks 6 select for use the rubber block in this embodiment, base 1 is fixed with butt piece 7 that is used for supporting the bottom of portable electrical apparatus, link 4, clutch blocks 6 and butt piece 7 set up at interval in the horizontal direction, clutch blocks 6 are located between butt piece 7 and link 4;

referring to fig. 2 and 3, link 4 bottom is fixed with the first installation piece 8 that the specification is greater than the specification is seted up to mounting hole 3, be provided with second installation piece 9 in the first mounting groove 2, second installation piece 9 and the 8 butt of first installation piece, first installation piece 8 presss from both sides between second installation piece 9 and the 2 roof of first mounting groove, second installation piece 9 passes through screw fixed mounting with base 1, link 4 slope sets up, set up the first logical groove 10 that runs through link 4 along the direction of perpendicular to link 4 incline direction on link 4, set up along link 4 incline direction on the wall of first logical groove 10 both sides and be no less than two tooth's sockets 11.

Referring to fig. 4 and 5, a back support portion 12 for supporting the portable electrical appliance from the back is installed on the connecting frame 4, the back support portion 12 is hollow, a wireless power output device (not shown) for charging the portable electrical appliance is installed in the back support portion 12, the back support portion 12 is obliquely arranged in the direction same as the oblique direction of the connecting frame 4, a guide protrusion 36 is fixed on one surface of the back support portion 12 abutted to the connecting frame 4 in the oblique direction of the connecting frame 4, the back support portion 12 is slidably connected with the connecting frame 4 in the oblique direction of the connecting frame 4, and the guide protrusion 36 is slidably matched with the connecting frame 4 in the oblique direction of the connecting frame 4.

Referring to fig. 4 and 5, a first bump 13 is fixed on one surface of the back abutting portion 12 abutting against the connecting frame 4 along a direction perpendicular to the inclined direction of the back abutting portion 12, the first bump 13 is located in the first through groove 10, the first bump 13 is a round block, and a jack 14 for inserting an external power transmission plug is formed in the first bump 13;

referring to fig. 5 and 6, a first limiting assembly for limiting the sliding of the back support part 12 is arranged on the back support part 12, the first limiting assembly comprises a locking block 15, the locking block 15 is a circular block, the locking block 15 is rotatably connected with the back support part 12, a second through groove 16 for exposing the first protruding block 13 is formed in the locking block 15, protruding teeth 17 matched with the tooth grooves 11 are arranged on the arc surface of the locking block 15, two protruding teeth 17 are uniformly distributed on the locking block 15 along the circumference of the rotation direction of the locking block 15, the protruding teeth 17 are clamped with the tooth grooves 11, the thickness of the locking block 15 is the same as the depth of the first through groove 10, a hand-held block 18 is fixed on one surface of the locking block 15, which is far away from the back support part 12, and the hand-held block 18 is rotatably matched with the connecting frame;

referring to fig. 4 and 6, a first fixture block 19 is fixed on one surface of the locking block 15 facing the back support portion 12 along a direction perpendicular to an inclined direction of the connecting frame 4, a first opening 20 through which the first fixture block 19 passes is formed on one surface of the back support portion 12 abutting against the connecting frame 4, the first opening 20 is adapted to the first fixture block 19, a second fixture block 21 is fixed on one end of the first fixture block 19 entering the back support portion 12 along the inclined direction of the connecting frame 4, a second opening 22 through which the second fixture block 21 passes is formed on an inner wall of the first opening 20, the second opening 22 is adapted to the second fixture block 21, the second fixture block 21 is in sliding fit with an inner wall of the back support portion 12 along a rotating direction of the locking block 15, the first fixture block 19 is in sliding fit with an inner wall of the first opening 20 along the direction perpendicular to the inclined direction of the connecting frame 4, two first openings 20 and two second openings 22 are uniformly distributed on the back support portion 12 along a center axis circumference of the first projection 13, two first fixture blocks 19 and two second fixture blocks 21 are uniformly distributed on the locking block 15 along the circumference of the locking block 15 in the rotating direction.

Referring to fig. 2 and 7, the base 1 lateral part is provided with the extension seat 23, the second mounting groove 29 has been seted up to extension seat 23 bottom, base 1 side and the side butt of extension seat 23, base 1 and the one side of extending seat 23 butt are seted up and are run through the second recess 24 of base 1 bottom and lateral part, the vertical plastics fixture block 25 that is fixed with on the second recess 24 roof, one side of extending seat 23 and base 1 butt is fixed with second lug 26, set up the vertical third that runs through second lug 26 on the second lug 26 and lead to the groove 27, the vertical third that penetrates of plastics fixture block 25 leads to the groove 27 and with second lug 26 joint, thereby realize base 1 and the fixed mounting who extends seat 23.

Referring to fig. 2 and 7, a charging seat 28 for charging the smart watch and the wireless earphone charging box is fixed on the extension seat 23, the bottom of the charging seat 28 is provided with an empty slot 30 for accommodating an external wire and a plug for charging the smart watch and the wireless earphone charging box, the empty slot 30 is communicated with the second mounting groove 29, the bottom of the side wall of the extension seat 23 is provided with a wire clamping slot 35 for fixing an external charging wire, the wire clamping slot 35 is communicated with the second mounting groove 29, the two wire clamping slots 35 are horizontally arranged on the side wall of the extension seat 23 at intervals, the charging seat 28 is provided with a first charging slot 31 for embedding the wireless earphone charging box, the bottom wall of the first charging slot 31 is provided with a first through hole 32 for inserting the external plug for charging the wireless earphone charging box, the plug for charging the wireless earphone charging box is in interference fit with the first through hole 32, the first through hole 32 is communicated with the first charging slot 31 and the empty slot 30, the charging stand 28 side is seted up and is supplied external induction charger that is used for charging to the intelligent wrist-watch and the second charging groove 33 of the embedding of the induction portion that charges of intelligent wrist-watch that is used for, sets up on the second charging groove 33 cell wall and supply the second through-hole 34 that passes with the external electric wire that the induction charger that charges to the intelligent wrist-watch is connected.

The implementation principle of the embodiment is as follows: when a user needs to wirelessly charge a portable electric appliance capable of being wirelessly charged, the user firstly rotates the locking block 15 to drive the convex teeth 17 to rotate, the connecting frame 4 is elastically deformed under the pushing of the convex teeth 17, the convex teeth 17 are released from clamping with the tooth sockets 11, then the user slides the back support part 12 according to the specification of the portable electric appliance needing to be charged to adjust the position of the wireless power output device, so that the wireless power output device can be aligned with a wireless power receiver on the portable electric appliance, the user holds and fixes the back support part 12 and reversely rotates the locking block 15 to drive the convex teeth 17 to synchronously and reversely rotate, the convex teeth 17 push the connecting frame 4 again to enable the connecting frame 4 to be elastically deformed, and the user stops rotating the locking block 15 after the convex teeth 17 are clamped with the tooth sockets 11 on the corresponding positions, so that the limitation on the sliding of the back support part 12 is realized;

the user places the portable electrical apparatus that will need to charge on clutch blocks 6 and makes this portable charger and back portion 12 butt, and the user will be arranged in back portion 12 external plug that the wireless power follower supplied power inserts jack 14 again, and wireless power follower transmits wireless electric energy to the wireless power receiver on the portable electrical apparatus in to the wireless power receiver, thereby realized charging to portable electrical apparatus.

The user is earlier with in the induction charger embedding second charging groove 33 that charges to intelligent wrist-watch, the electric wire that will need to be connected with the induction charger that charges to intelligent wrist-watch again stretches into in stretching into dead slot 30 from second mounting groove 29 and through second through-hole 34 with this connection of electric lines on the induction charger that charges to intelligent wrist-watch, the user is again gone into this electric wire card and is gone into one card wire casing 35 in, thereby realized carrying out the preparation that charges to intelligent wrist-watch, when treating that intelligent wrist-watch need charge, the induction part that charges of intelligent wrist-watch imbeds in second charging groove 33 and makes the induction part and the induction charger butt that charge of intelligent wrist-watch, the user is again around establishing on charging seat 28 with the watchband of intelligent wrist-watch, the user can realize charging to intelligent wrist-watch to the induction charger circular telegram.

The user will be used for the plug that charges to wireless earphone charging box earlier and the electric wire with this plug connection stretches into in the dead slot 30 through second mounting groove 29, the user will be used for the plug that charges to wireless earphone charging box again and inserts first through-hole 32, the plug that is used for charging to wireless earphone charging box is fixed through frictional force to first through-hole 32 inner wall, the user will be gone into card inslot 35 with this plug connection's electric wire card afterwards, thereby realized the preparation that charges to wireless earphone charging box, when treating that wireless earphone charging box need charge, the user puts into first charging groove 31 with wireless earphone charging box, a hole that charges on the wireless earphone charging box is inserted to the plug that charges to wireless earphone charging box, the user is again to the plug circular telegram that is used for charging to wireless earphone charging box, thereby realized charging to wireless earphone charging box.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a wireless charger with adjustable, includes base (1), install back portion (12) that are used for supporting portable electrical apparatus on base (1), be provided with the wireless power follower that is used for charging portable electrical apparatus on back portion (12), its characterized in that: the base (1) is obliquely provided with a connecting frame (4), the back support part (12) is connected with the connecting frame (4) in a sliding mode along the oblique direction of the connecting frame (4), and a first limiting assembly for limiting the back support part (12) to slide is mounted on the back support part (12).

2. The adjustable wireless charger of claim 1, wherein: first spacing subassembly includes locking block (15), first logical groove (10) have been seted up on link (4), locking block (15) are rotated with back to portion (12) and are connected, locking block (15) are located first logical groove (10), it is no less than two tooth's socket (11) to have seted up along link (4) slope direction on first logical groove (10) inner wall, locking block (15) upside has two dogtooths (17) along locking block (15) rotation direction circumference evenly distributed, dogtooth (17) and tooth's socket (11) joint, link (4) have elasticity.

3. The adjustable wireless charger of claim 2, wherein: the wireless power output device is arranged in the back supporting portion (12), a first clamping block (19) is fixed on the locking block (15), a first opening (20) for the first clamping block (19) to penetrate through is formed in the back supporting portion (12), a second clamping block (21) is fixed on one end, entering the back supporting portion (12), of the first clamping block (19) in the inclined direction of the connecting frame (4), and the second clamping block (21) is in sliding fit with the inner wall of the back supporting portion (12) in the rotating direction of the locking block (15).

4. The adjustable wireless charger of claim 3, wherein: the first clamping block (19) is in sliding fit with the inner wall of the first opening (20) along the direction perpendicular to the inclined direction of the connecting frame (4), and a second opening (22) for the second clamping block (21) to penetrate through is formed in the inner wall of the first opening (20).

5. The adjustable wireless charger of claim 2, wherein: a first bump (13) is fixed on the back abutting portion (12), the first bump (13) is positioned in the first through groove (10), and a second through groove (16) for the first bump (13) to pass through is formed in the locking block (15).

6. The adjustable wireless charger of claim 5, wherein: and the first bump (13) is provided with a jack (14) for inserting an external power transmission plug.

7. The adjustable wireless charger of claim 2, wherein: a hand-held block (18) is fixed on one surface, far away from the back supporting part (12), of the locking block (15), and the hand-held block (18) is in running fit with the connecting frame (4).

8. The adjustable wireless charger of claim 1, wherein: a guide protrusion (36) is fixed on one surface of the back abutting part (12) abutted to the connecting frame (4) along the inclined direction of the connecting frame (4), and the guide protrusion (36) is in sliding fit with the connecting frame (4) along the inclined direction of the connecting frame (4).

9. The adjustable wireless charger according to any one of claims 1-8, wherein: and the base (1) is provided with a friction block (6) which is abutted against the bottom of the portable electric appliance.

10. The adjustable wireless charger of claim 9, wherein: the portable electric appliance connecting device is characterized in that a butting block (7) used for butting against the bottom of one face, away from the connecting frame (4), of the portable electric appliance is arranged on the base (1), and the friction block (6) is arranged between the butting block (7) and the connecting frame (4).