CN210113449U

CN210113449U - Electric bracket

Info

Publication number: CN210113449U
Application number: CN201920298086.9U
Authority: CN
Inventors: 陈国灯
Original assignee: Ningbo Youde Electronic Technology Co Ltd
Current assignee: Ningbo Youde Electronic Technology Co Ltd
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2020-02-25
Anticipated expiration: 2029-03-07

Abstract

The utility model provides a need not to use and draw electric support of magnetic sheet, it has a bearing surface to bear the main part, bears the surface arch and has one to be annular elasticity flexible glue spare, it has a suction chamber to bear the main part on, bear the main part partly down and stretch into the suction intracavity and last bear the cooperation that the main part can be drawn, another part exposes supreme main part of bearing outside, suction chamber intercommunication elasticity flexible glue spare inboard region, bear the main part on the suction intracavity and bear the main part down and seal the cooperation between the main part.

Description

Electric bracket

Technical Field

The utility model relates to an electric bracket.

Background

Along with the use of electronic equipment such as smart mobile phones and tablet computers in people's life is more and more, people increasingly need some auxiliary assembly for example cell-phone, panel computer rack in order to liberate both hands when driving.

Chinese patent publication No. CN202863288U discloses a magnetic attraction bracket, but when the bracket is used, an iron magnetic attraction sheet is additionally attached to the back of an electronic device such as a mobile phone, which affects the appearance of the electronic device.

Disclosure of Invention

The utility model aims to solve the technical problem that an electric bracket without magnetic sheets is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the electric bracket comprises an upper bearing main body, an elastic soft rubber piece and a lower bearing main body, wherein the upper bearing main body is made of hard material, the upper bearing main body is provided with an annular elastic soft rubber piece in a protruding way,

the upper bearing main body is provided with an air suction cavity, at least part of the lower bearing main body extends into the air suction cavity to be matched with the upper bearing main body in a drawable mode, or the lower bearing main body is provided with an air suction cavity, at least part of the upper bearing main body extends into the air suction cavity to be matched with the lower bearing main body in a drawable mode, the air suction cavity is communicated with the space inside the elastic soft rubber piece, the upper bearing main body and the lower bearing main body are in sealed matching in the air suction cavity, the electric bracket further comprises a driving mechanism enabling the lower bearing main body and the upper bearing main body to move relatively, the driving mechanism comprises a driving motor and a transmission mechanism, and the driving motor is connected with the lower bearing main body or the upper bearing main body through the transmission mechanism;

or the electric bracket further comprises a micro vacuum pump connected to the lower bearing main body or the upper bearing main body, and the air inlet end of the micro vacuum pump is communicated with the area on the inner side of the elastic soft rubber piece;

or, the upper bearing main body is provided with an air suction cavity, at least part of the lower bearing main body extends into the air suction cavity to be matched with the upper bearing main body in a drawable manner, or the lower bearing main body is provided with an air suction cavity, at least part of the upper bearing main body extends into the air suction cavity to be matched with the lower bearing main body in a drawable manner, the air suction cavity is communicated with the space inside the elastic soft rubber piece, the upper bearing main body and the lower bearing main body are in sealed fit in the air suction cavity, the electric bracket further comprises an electromagnet arranged on one of the lower bearing main body and the upper bearing main body and a ferromagnetic object or electromagnet arranged on the other one of the lower bearing main body and the upper bearing main body, the lower bearing main body or the upper bearing main body is provided with a power supply for supplying power to the electromagnet, or the lower bearing main body and/or the upper bearing main, the plug or the jack is electrically connected with the electromagnet to supply power to the electromagnet, and/or the lower bearing main body or the upper bearing main body is provided with a switch or a control circuit which is electrically connected with the electromagnet.

Preferably, an elastic member is disposed between the upper bearing main body and the lower bearing main body, when an external force is applied to pull or contract the upper bearing main body and the lower bearing main body relatively, potential energy of the elastic member changes, and after the external force is removed, the elastic member makes the upper bearing main body and the lower bearing main body return to their original shapes or has a tendency to make the upper bearing main body and the lower bearing main body return to their original shapes,

or a magnetic part is arranged between the upper bearing main body and the lower bearing main body, external force is applied to enable the magnetic force between the upper bearing main body and the lower bearing main body to change when the upper bearing main body and the lower bearing main body are relatively pulled or contracted, and after the external force is removed, the magnetic part has the tendency of enabling the upper bearing main body and the lower bearing main body to be restored or enabling the upper bearing main body and the lower bearing main body to be restored.

Preferably, the upper bearing body is connected with the lower bearing body in a non-rotatable manner.

Preferably, the part of the upper bearing body extending into the suction cavity is connected with the lower bearing body in a non-rotatable manner, or the part of the lower bearing body extending into the suction cavity is connected with the upper bearing body in a non-rotatable manner.

Preferably, one of the upper and lower bearing bodies has a sliding groove extending in the drawing direction of the upper and lower bearing bodies, and the other has a sliding portion extending into the sliding groove.

Preferably, the upper bearing body is sleeved with the lower bearing body, and the part of the upper bearing body sleeved with the lower bearing body is a non-rotating body.

Preferably, the elastic element is an extension spring or a compression spring or an elastic rubber strip or an elastic sheet or an elastic needle arranged between the upper bearing main body and the lower bearing main body.

Preferably, the magnetic member is a magnet respectively disposed on the upper bearing body and the lower bearing body, and the two magnets are configured to attract or repel each other; or the magnetic piece is a magnet arranged on one of the upper bearing main body and the lower bearing main body and a ferromagnetic object arranged on the other bearing main body; or, one of the upper bearing body and the lower bearing body is made of ferromagnetic material, and the magnetic member is a magnet arranged on the other.

Preferably, the pressure in the sealed space is lower than atmospheric pressure or higher than atmospheric pressure.

Preferably, the upper bearing main body is provided with an annular groove, and the elastic soft rubber part is partially embedded into the annular groove; or the elastic soft rubber part is sprayed or encapsulated on or adhered to the upper bearing main body.

Preferably, a part of the surface of the upper bearing body located inside the annular groove is a plane.

Preferably, the part of the surface of the upper bearing body, which is positioned at the inner side of the annular groove, is a non-slip surface or is provided with a non-slip pad.

Preferably, a part of the surface of the upper bearing body located inside the annular groove is provided with a decorative sheet.

Preferably, a through hole for communicating the air suction cavity or connecting an air inlet end of the micro vacuum pump is formed in the partial surface of the upper bearing main body, which is positioned on the inner side of the annular groove; or a through hole used for communicating the air suction cavity or connecting the air inlet end of the micro vacuum pump is formed in the partial surface, located on the inner side of the annular groove, of the upper bearing body, and a non-slip pad or a decorative sheet or a breathable hole plug used for covering the through hole is arranged on the partial surface, located on the inner side of the annular groove, of the upper bearing body; or, a through hole used for communicating the air suction cavity or connecting the air inlet end of the micro vacuum pump is arranged on the partial surface of the upper bearing main body, which is positioned on the inner side of the annular groove, is provided with an airtight non-slip mat or a decoration sheet covering the through hole, and an air channel communicated with the outside is arranged between the upper bearing main body and the non-slip mat or the decoration sheet.

Preferably, the aperture of the through hole is 5mm or less.

Preferably, the aperture of the through hole is 2mm or less.

Preferably, the aperture of the through hole is 1mm or less.

Preferably, the elastic soft rubber piece is higher than the upper bearing main body by less than 3 mm.

Preferably, the elastic soft rubber part is a silica gel or rubber part.

Preferably, a separation preventing structure for preventing the separation of the upper bearing body and the lower bearing body is arranged between the upper bearing body and the lower bearing body.

Preferably, one of the upper bearing main body and the lower bearing main body is provided with a sliding groove extending along the drawing direction of the upper bearing main body and the lower bearing main body, the other one is provided with a sliding part extending into the sliding groove, and the separation-preventing structure comprises a blocking part arranged on the sliding groove.

Preferably, the upper bearing main body comprises an upper shell and a lower shell which are fixedly connected, an accommodating space is formed between the upper shell and the lower shell, the upper shell is integrally or detachably provided with a barrel body in the accommodating space, the air suction cavity is formed in the barrel body, and the lower shell is provided with a through hole for the lower bearing main body to pass through.

Preferably, the upper bearing main body comprises an upper shell and a lower shell, and the upper shell and the lower shell are connected in a buckling manner or in a threaded manner or are inserted to enable the lower shell to be replaceable; or the upper bearing main body comprises a shell and a main body positioned in the shell, and the shell and the main body are in snap connection or threaded connection or plug connection so that the shell can be replaced.

Preferably, the lower bearing body comprises a drawer and a base, and the drawer and the base are rotatably connected to enable the angle of the upper bearing body to be adjustable.

Preferably, the drawer and the base are rotatably connected through a ball.

Preferably, a friction pad is arranged between the base and the ball body.

Preferably, the base is provided with an accommodating cavity, the top of the accommodating cavity is provided with an opening, and the diameter of the opening is smaller than that of the sphere.

Preferably, the bottom of the base is provided with an adhesive layer.

Preferably, the lower bearing body comprises a housing and a body located in the housing, the housing and the body being snap-fit or screw-fit or bayonet-fit so that the housing is replaceable.

Preferably, the upper bearing body is provided with a wireless charging device.

Preferably, the wireless charging device comprises a charging coil and a control circuit board which are arranged in the upper bearing main body, and the electric support is provided with a plug or a socket which is electrically connected with the control circuit board.

Advantageous effects

The utility model adopts the above technical scheme afterwards, electronic support need not to use and draws the electronic equipment of placing that the magnetic sheet can be firm, simple structure convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is another schematic diagram of the explosion diagram of the present invention.

Detailed Description

The invention will now be further described with reference to the accompanying drawings and detailed description.

Certain terms are used herein to refer to particular components, and those skilled in the art will understand that the description and claims do not distinguish between components by difference in name, but rather by difference in function. It should be noted that when an element is described as being "provided with" or "disposed on" another element, etc., it can mean that the element is directly provided or disposed on the other element or intervening elements may also be present. When an element is described as being "connected" to another element, etc., it can be directly connected or connected through intervening elements. When an element is referred to as being "on" another element, it does not mean that the element is necessarily on top of or above the other element, or in other locations. The terms "left", "right" and the like are used herein for convenience of description only.

Referring to fig. 1 to 3, the electric stand of the present invention mainly includes an upper bearing body 1, an elastic soft rubber member 2 and a lower bearing body 3, wherein the upper bearing body 1 is mainly made of a hard material, such as a hard plastic, a metal, etc., and has a bearing surface at the top thereof, the elastic soft rubber member 2 protrudes from the bearing surface in an annular shape, the elastic soft rubber member 2 is 2-3mm higher than the bearing surface, and may be less than 2mm, such as 1-2mm, or may be a suitable height of more than 3mm in other modes, the material of the elastic soft rubber member 2 is preferably a silica gel or a rubber member, and other suitable materials may be used in other embodiments to achieve a sealing effect, the surface of the elastic soft rubber member 2 contacting with an electronic device is a plane, or may be a protruding arc surface in other embodiments, the width may be 2 to 3mm, and in other embodiments, the width may be 3mm or more or 2mm or less.

In this embodiment, a suction cavity is formed inside the upper bearing main body 1, a part of the lower bearing main body 3 extends into the suction cavity to be matched with the upper bearing main body 1 in a drawable manner, and the other part of the lower bearing main body is exposed out of the upper bearing main body 1, the suction cavity is communicated with a space defined by the inner sides of the elastic soft rubber pieces 2, and the upper bearing main body 1 and the lower bearing main body 3 are in sealing fit through a sealing piece such as a silica gel ring and the like in the suction cavity; in other embodiments, a suction cavity may be further disposed on the lower bearing body 3, a portion of the upper bearing body 1 extends into the suction cavity to be matched with the lower bearing body 3 in a drawable manner, and another portion of the upper bearing body is exposed to the outside of the lower bearing body 3.

The electric bracket further comprises a driving mechanism which enables the lower bearing main body 3 and the upper bearing main body 1 to move relatively, the driving mechanism comprises a driving motor and a transmission mechanism (not shown in the figure), the driving motor is connected with the bearing main body 3 or the upper bearing main body 1 through the transmission mechanism, and the bearing main body 3 and the upper bearing main body 1 are driven to move relatively. In this embodiment, the driving motor is fixedly connected to the lower bearing main body 3, and is in transmission fit with the upper bearing main body 1 through a transmission mechanism. In other embodiments, the driving motor may also be fixedly connected to the upper bearing body 1, and is in transmission fit with the lower bearing body 3 through a transmission mechanism. The transmission mechanism may be a rack and pinion type, for example, a gear set (e.g., a reduction gear set) is connected to the driving motor, a rack is disposed on the upper carrier body 1 or teeth extending in the length direction are disposed on the upper carrier body, and the rack or the teeth extending in the length direction are engaged with (e.g., meshed with) gears on the gear set; the transmission mechanism may also be of a worm-and-gear type, for example, a worm is disposed at an output end of the driving motor, or a gear set (e.g., a reduction gear set) is connected to the output end of the driving motor, a worm is disposed at an output end of the gear set, a worm wheel is disposed on the upper bearing body 1, and the worm is engaged with (e.g., meshed with) the worm through the worm; the transmission mechanism may also be a screw rod sliding block type, for example, a screw rod is arranged at the output end of the driving motor, or a gear set (e.g., a reduction gear set) is connected to the output end of the driving motor, a screw rod is arranged at the output end of the gear set, a sliding block is arranged on the upper bearing main body 1, and the screw rod is matched with the sliding block to rotate to drive the sliding block to slide so as to drive the upper bearing main body 1 to move relative to the bearing main body 3; in other embodiments, the transmission mechanism may also be a linkage mechanism such as a crank rocker, a cam mechanism, or the like.

In this embodiment, a control circuit board is disposed on the upper bearing body 1, a control circuit is disposed on the control circuit board and electrically connected to the driving motor, the driving motor is controlled by the control circuit to start or stop, rotate forward or backward, the upper bearing body 1 or the bearing body 3 has a plug or a socket electrically connected to the control circuit board, the upper bearing body 1 or the bearing body 3 is provided with a control switch electrically connected to or in signal connection with the control circuit board, such as a micro switch, a touch switch, an infrared sensor switch, and the like, the upper bearing body 1 is further provided with a wireless charging device for wirelessly charging electronic devices such as a mobile phone having a wireless charging function, preferably, the wireless charging device includes a charging coil disposed in the upper bearing body 1, and the charging coil is electrically connected to the control circuit board.

In other embodiments, the electric stand may further include a micro vacuum pump connected to the lower bearing body 3 or the upper bearing body 1, an air inlet of the micro vacuum pump communicates with an area inside the elastic soft rubber 2, and the micro vacuum pump sucks air to adsorb the electronic device.

In other embodiments, the electric stand may further include an electromagnet provided on one of the lower bearing body 3 and the upper bearing body 1, a ferromagnetic object or an electromagnet provided on the other, the lower bearing body 3 or the upper bearing body 1 is provided with a power supply for supplying power to the electromagnet, or the lower bearing body 3 and/or the upper bearing body 1 is provided with a plug or a socket for connecting an external power supply, the plug or the socket is electrically connected with the electromagnet to supply power to the electromagnet, and/or the lower bearing body 3 or the upper bearing body 1 is provided with a switch or a control circuit which is electrically connected with the electromagnet, the electromagnet generates magnetism or the magnetism disappears by controlling the electromagnet to be switched on or off, thereby achieving the purpose of adsorption or repulsion and further enabling the lower bearing body 3 and the upper bearing body 1 to move relatively.

In this embodiment, the upper bearing body 1 and the portion of the lower bearing body 3 extending into the suction cavity are connected in a non-rotatable manner. Wherein, one of the upper bearing body 1 and the lower bearing body 3 is provided with a sliding groove 4 extending along the drawing direction of the upper bearing body and the lower bearing body, and the other is provided with a sliding part 5 extending into the sliding groove 4. In other embodiments, the upper bearing body 1 and the lower bearing body 3 are sleeved, and a portion of the upper bearing body 1 and a portion of the lower bearing body 3, which are sleeved with each other, are non-rotating bodies, such as ellipses, triangles, quadrangles, polygons or other irregular shapes. In other embodiments, the upper bearing body 1 is connected to the lower bearing body 3 in a non-rotatable manner, wherein the part of the upper bearing body protrudes into the suction cavity.

In other embodiments, a friction structure for increasing friction is provided between the upper bearing body 1 and the lower bearing body 3 to prevent the relative rotation between the upper bearing body 1 and the lower bearing body 3 or increase the resistance to the relative rotation between the upper bearing body 1 and the lower bearing body 3, for example, a rubber pad is provided between the upper bearing body 1 and the lower bearing body 3, and a concave-convex surface, teeth, convex points, lines, etc. are provided between the upper bearing body 1 and the lower bearing body 3.

In other embodiments, an elastic element may be further disposed between the upper main bearing body 1 and the lower main bearing body 3, when an external force is applied to make the upper main bearing body 1 and the lower main bearing body 3 relatively draw or contract, potential energy of the elastic element changes, and after the external force is removed, the elastic element makes the upper main bearing body 1 and the lower main bearing body 3 restore to their original shapes or has a tendency to make the upper main bearing body 1 and the lower main bearing body 3 restore to their original shapes, and in such a structure, the elastic element is preferably an extension spring, a compression spring, an elastic rubber strip, an elastic sheet, or an elastic needle disposed between the upper main bearing body 1 and the lower main bearing body 3.

In this embodiment, the upper bearing body 1 is provided with an annular groove 7, and the lower part of the elastic soft rubber member 2 is embedded into the annular groove 7; in other embodiments, the elastic soft rubber member 2 can be sprayed or encapsulated on or adhered to the upper bearing body 1.

In this embodiment, a part of the surface of the upper bearing body 1 located inside the annular groove 7 is a plane. In other embodiments, the partial surface of the upper bearing body 1 inside the annular groove 7 may also be an anti-slip surface, such as a slightly sprayed silica gel layer, or a surface provided with raised lines, or a surface provided with anti-slip pads, etc.

Referring to fig. 1 to 3, a portion of the surface of the upper bearing body 1 inside the annular groove 7 is provided with a through hole 8 for communicating with the suction chamber. Preferably, the aperture of the through hole 8 is less than 1mm, the small hole can prevent foreign matters from entering the air suction cavity, the appearance is attractive, and other embodiments can be 1-2mm, 2-3mm or more than 3 mm. In other embodiments, when a micro vacuum pump is employed, the inlet end of the micro vacuum pump communicates with the through hole 8.

A separation-preventing structure is arranged between the upper bearing body 1 and the lower bearing body 3 for preventing the separation of the upper bearing body and the lower bearing body. In this embodiment, the separation preventing structure includes a stopper 41 provided on the slide groove 4, for example, the stopper 41 is formed by closing the end of the slide groove 4. In other embodiments, other suitable hair structures may be used to prevent disengagement.

Referring to fig. 2, the upper bearing body 1 includes an upper shell 11 and a lower shell 12, the upper shell 11 is fixedly connected with the lower shell 12, an accommodating space is formed between the upper shell 11 and the lower shell 12, the upper shell 11 is integrally or detachably provided with a cylinder 111 in the accommodating space, the air suction cavity is formed in the cylinder 111, the lower shell 12 is provided with a through hole 121 for the lower bearing body 3 to pass through, the charging coil and the control circuit board are located in the accommodating space, and the charging coil and the control circuit board are sleeved outside the cylinder 111 and fixed with the upper shell 11 and/or the lower shell 12. Preferably, the upper shell 11 and the lower shell 12 are snap-fit or screw-fit or bayonet-fit so that the lower shell 12 can be changed to different shapes as desired. In other embodiments, the upper bearing body 1 may also adopt a housing and a body positioned in the housing, and the housing and the body are connected in a snap connection or a threaded connection or a plug connection, so that the housing can be replaced.

The lower carrier body 3 comprises a drawer 31 and a seat 32, and the drawer 31 and the seat 32 are rotatably connected so that the angle of the upper carrier body 1 can be adjusted. The pulling piece 31 is made of plastic or metal, or the pulling piece 31 comprises a main body made of plastic and an outer sleeve made of metal and wrapped outside the main body, the outer sleeve and the main body can be connected through a buckle or a thread or inserted to enable the shell to be replaceable, and the outer sleeve and the main body can be connected in a non-detachable mode in other embodiments. The base 32 includes a housing and a body within the housing that snap fit or thread or plug so that the housing is replaceable.

Preferably, the drawer 31 is rotatably connected to the base 32 by a ball 33. The base 32 is provided with an accommodating cavity, the top of the accommodating cavity is provided with an opening, the diameter of the opening is smaller than that of the ball 33, the ball 33 is accommodated in the accommodating cavity, and the top of the accommodating cavity is exposed out of the opening and connected with the drawer 31. The ball 33 is fixedly connected with the drawer 31 through a screw or inserted through an inserted link. A friction pad 34, such as a silica gel pad or a rubber ring, is disposed between the base 32 and the ball 33. The bottom of the base 32 is provided with an adhesive layer so as to fix the electric bracket on the surface of a center console in the vehicle; in other embodiments, a clip may be further disposed at the bottom of the base 32 to facilitate fixing the electric bracket to an air outlet in the vehicle; in other embodiments, a suction cup, a magnet, or the like may be provided at the bottom of the base 32 to facilitate the fixing of the power bracket in the vehicle.

When the electronic equipment is used, the electronic equipment is placed on the upper bearing main body 1 forcibly or is placed on the upper bearing main body 1 lightly and then is pressed forcibly, the electronic equipment presses the upper bearing main body 1 forcibly, the upper bearing main body 1 moves relative to the lower bearing main body 3 to extrude partial air in the air suction cavity and the inner side area of the elastic soft rubber part 2 communicated with the air suction cavity, after the external acting force disappears, negative pressure is formed in the air suction cavity and the inner side area of the elastic soft rubber part 2 communicated with the air suction cavity under the action of the magnetic part, the electronic equipment is adsorbed on the upper bearing main body 1, the upper bearing main body 1 transmits the pressure to the elastic soft rubber part 2 on the edge of the outer edge, the elastic soft rubber part 2 is squeezed and filled into a gap on the surface of the electronic equipment to form peripheral sealing, and the vacuum degree of the air suction cavity and the inner side area of the elastic soft rubber. The elastic soft rubber piece 2 is squeezed until the surface of the electronic equipment is tightly attached to the bearing surface to generate larger friction force, so that the electronic equipment is not easy to slide off. In other embodiments, the electronic device may also form a certain gap with the carrying surface.

It is needless to say that the present invention may have other changes and modifications, and is not limited to the specific structure of the above-described embodiments, and the scope of the present invention should include those changes or substitutions and modifications, which are obvious to those skilled in the art.

Claims

1. The electric bracket is characterized by comprising an upper bearing main body (1), an elastic soft rubber piece (2) and a lower bearing main body (3), wherein the upper bearing main body (1) is made of hard material, the upper bearing main body (1) is convexly provided with the annular elastic soft rubber piece (2),

the upper bearing main body (1) is provided with an air suction cavity, at least part of the lower bearing main body (3) extends into the air suction cavity to be matched with the upper bearing main body (1) in a drawing way, or the lower bearing main body (3) is provided with an air suction cavity, at least part of the upper bearing main body (1) extends into the air suction cavity to be matched with the lower bearing main body (3) in a drawable manner, the air suction cavity is communicated with the space inside the elastic soft rubber piece (2), the upper bearing body (1) and the lower bearing body (3) are in sealing fit in the suction cavity, the electric bracket also comprises a driving mechanism which enables the lower bearing main body (3) and the upper bearing main body (1) to move relatively, the driving mechanism comprises a driving motor and a transmission mechanism, and the driving motor is connected with the lower bearing main body (3) or the upper bearing main body (1) through the transmission mechanism;

or the electric bracket further comprises a micro vacuum pump connected to the lower bearing main body (3) or the upper bearing main body (1), and the air inlet end of the micro vacuum pump is communicated with the area on the inner side of the elastic soft rubber piece (2);

or, the upper bearing main body (1) is provided with an air suction cavity, at least part of the lower bearing main body (3) extends into the air suction cavity to be matched with the upper bearing main body (1) in a drawable manner, or the lower bearing main body (3) is provided with an air suction cavity, at least part of the upper bearing main body (1) extends into the air suction cavity to be matched with the lower bearing main body (3) in a drawable manner, the air suction cavity is communicated with the space inside the elastic soft rubber piece (2), the upper bearing main body (1) and the lower bearing main body (3) are in sealing fit in the air suction cavity, the electric bracket further comprises an electromagnet arranged on one of the lower bearing main body (3) and the upper bearing main body (1), a ferromagnetic object or an electromagnet arranged on the other one of the lower bearing main body (3) and/or the upper bearing main body (1) is provided with a power supply for supplying power to the electromagnet, or the lower bearing main body (3) and/or the upper The upper bearing main body (1) is provided with a plug or a socket for connecting an external power supply, the plug or the socket is electrically connected with the electromagnet to supply power to the electromagnet, and/or the lower bearing main body (3) or the upper bearing main body (1) is provided with a switch or a control circuit which is electrically connected with the electromagnet.

2. Electric stand according to claim 1, characterized in that the upper bearing body (1) is provided with wireless charging means.

3. The electric stand according to claim 2, wherein the wireless charging device comprises a charging coil and a control circuit board arranged in the upper bearing body (1), and the electric stand is provided with a plug or a socket electrically connected with the control circuit board.

4. Electric stand according to claim 1 or 2 or 3, characterized in that the non-rotatable connection between the part of the upper bearing body (1) that protrudes into the suction cavity and the lower bearing body (3) or the non-rotatable connection between the part of the lower bearing body (3) that protrudes into the suction cavity and the upper bearing body (1).

5. An electric stand according to claim 4, characterised in that one of the upper load-bearing body (1) and the lower load-bearing body (3) has a slide groove (4) extending in the drawing direction of the two, the other has a sliding portion (5) projecting into the slide groove (4); or the upper bearing body (1) is sleeved with the lower bearing body (3), and the part of the upper bearing body (1) sleeved with the lower bearing body (3) is a non-rotating body.

6. Electric stand according to claim 1 or 2 or 3, characterized in that said upper load-bearing body (1) is provided with an annular groove (7), said elastic soft rubber element (2) being embedded in said annular groove (7); or the elastic soft rubber piece (2) is sprayed or connected in a rubber coating manner or adhered to the upper bearing main body (1).

7. Electric stand according to claim 6, characterized in that the part of the surface of the upper load-bearing body (1) inside the annular groove (7) has anti-slip surfaces or decorative sheets.

8. The electric stand according to claim 6, characterized in that the upper bearing body (1) has a through hole (8) on its partial surface inside the annular groove (7) for communicating with the suction chamber or for connecting to the inlet end of the micro-vacuum pump; or a through hole (8) used for communicating the air suction cavity or connecting the air inlet end of the micro vacuum pump is formed in the partial surface of the upper bearing main body (1) positioned on the inner side of the annular groove (7), and a non-slip pad or a decorative sheet or a breathable hole plug for covering the through hole (8) is arranged on the partial surface of the upper bearing main body (1) positioned on the inner side of the annular groove (7); or a through hole (8) used for being communicated with the air suction cavity or being connected with the air inlet end of the micro vacuum pump is formed in the partial surface, located on the inner side of the annular groove (7), of the upper bearing main body (1), an airtight non-slip mat or a decoration sheet covering the through hole (8) is arranged on the partial surface, located on the inner side of the annular groove (7), of the upper bearing main body (1), and an air channel communicated with the outside is formed between the upper bearing main body (1) and the non-slip mat or the decoration sheet.

9. The electromotive support according to claim 8, wherein the aperture of the through hole (8) is 2mm or less.

10. Electric stand according to claim 1 or 2 or 3, characterized in that the elastic soft rubber (2) is less than 3mm higher than the upper load-bearing body (1).

11. Electric stand according to claim 1 or 2 or 3, characterized in that between the upper load-bearing body (1) and the lower load-bearing body (3) there is a disengagement-prevention structure for preventing disengagement of the two.

12. The electric stand according to claim 11, characterized in that one of the upper and lower load-bearing bodies (1, 3) has a sliding slot (4) extending in the drawing direction of the two, and the other has a sliding portion (5) extending into the sliding slot (4), and the disengagement preventing structure comprises a stopper portion (41) provided in the sliding slot (4).

13. The electric bracket according to claim 1, 2 or 3, characterized in that the upper bearing body (1) comprises an upper shell (11) and a lower shell (12), the upper shell (11) and the lower shell (12) are fixedly connected, an accommodating space is formed between the upper shell (11) and the lower shell (12), the upper shell (11) is integrally or separately provided with a cylinder (111) in the accommodating space, the cylinder (111) is internally provided with the air suction cavity, and the lower shell (12) is provided with a through hole (121) for the lower bearing body (3) to pass through.

14. Electric stand according to claim 1 or 2 or 3, characterized in that the upper carrying body (1) comprises an upper shell (11) and a lower shell (12), the upper shell (11) and the lower shell (12) being snap-connected or screw-connected or bayonet-connected such that the lower shell (12) is replaceable; or the upper bearing main body (1) comprises a shell and a main body positioned in the shell, and the shell and the main body are in snap connection or threaded connection or plug-in connection so that the shell can be replaced.

15. Motorized support according to claim 1 or 2 or 3, characterised in that the lower bearing body (3) comprises a drawer (31) and a seat (32), the drawer (31) and seat (32) being rotatably connected so that the angle of the upper bearing body (1) is adjustable.

16. Motorized support according to claim 15, characterised in that the connection between the drawer (31) and the seat (32) is made rotatable by means of a ball (33).

17. Electric stand according to claim 16, characterized in that a friction pad (34) is provided between the seat (32) and the ball (33).

18. The motorized trolley support according to claim 16, characterized in that the base (32) is provided with a housing cavity, the top of which is open, the diameter of the opening being smaller than the diameter of the ball (33).

19. The electromotive support stand according to claim 15, wherein an adhesive layer is provided on the bottom of said base (32).

20. The motorized trolley support according to claim 15, characterized in that the lower load-bearing body (3) comprises a housing and a body inside the housing, the housing and body being snap-connected or screw-connected or bayonet-connected so that the housing is replaceable.