CN218208631U - Key type lifting structure, support and display - Google Patents

Abstract

The utility model relates to an article support technical field specifically discloses a button type elevation structure, support and display. A key type lifting structure comprises a fixed rod, a telescopic rod and a limiting piece. Dead lever and telescopic link all set up the bottom plate and put between the thing board to the one end and the bottom plate of dead lever rotate to be connected, the one end of telescopic link with put the thing board and rotate to be connected. The telescopic rod is connected with the fixed rod in a sliding manner. The limiting part is arranged on the fixed rod and used for limiting the telescopic rod. When the user need extend or contract the telescopic link, at first remove the locking of locating part, remove the telescopic link this moment, after removing suitable length with the telescopic link, the spacing telescopic link of rethread locating part can be so that the position of telescopic link obtains fixedly. The user can adjust telescopic link extension length conveniently through locating part cooperation telescopic link. The utility model also discloses a support and display, this support and display possess button type elevation structure's all advantages.

Description

Key type lifting structure, support and display

Technical Field

The utility model relates to an article support technical field, in particular to button type elevation structure, support and display.

Background

Notebook computers, mobile phones and tablet computer stands are widely used in various life scenes. For example, the tablet computer is placed through the support, so that the tablet computer is fixed at one position, and then both hands of a user are liberated, and the user can conveniently work or watch videos through the tablet computer. Similarly, the support can also be used for holding a mobile phone or a tablet computer.

In the using process, if a user places the bracket and the electronic equipment on a desk, the electronic equipment is far away from the user if the user leans backwards at the moment. But the connecting rod of support can not extend, if user's eyes are far away from electronic equipment, can not see the screen of equipment well, and the user uses and experiences relatively poorly.

Accordingly, the prior art is yet to be improved and developed.

Disclosure of Invention

The utility model discloses a button type elevation structure, support and display for improve the inconvenient problem of current support extension.

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

a key-type elevation structure comprising:

a fixing rod;

the telescopic rod is connected with the fixed rod in a sliding manner, and a clamping groove is formed in the telescopic rod;

the limiting piece is arranged on the fixed rod and comprises a shell, a key and an elastic piece, and the shell is fixedly connected to the fixed rod; the key is rotationally connected to the shell; the elastic piece is arranged between the key and the shell and used for driving the key to be pressed into the clamping groove.

Preferably, the clamping grooves are arranged in a plurality, and the clamping grooves are arranged in parallel along the telescopic direction of the telescopic rod.

Preferably, the cross-sectional shape of draw-in groove is right trapezoid, right trapezoid's hypotenuse with the contained angle of the extension direction of telescopic link is the acute angle.

The utility model also discloses a support, the support includes:

a base plate;

a storage plate;

according to the key type lifting structure, one end of the fixing rod is connected with the bottom plate, and one end of the telescopic rod is connected with the object placing plate.

Preferably, the stent further comprises:

the rotating structure comprises a rotating block and a rotating disc, the rotating block is rotatably connected with the bottom plate, the rotating disc is fixedly connected with the rotating block, a rolling part and a positioning part are arranged on the bottom surface of the rotating disc, an annular groove and a plurality of annularly distributed pits are arranged on the bottom plate, the rolling part is rotatably connected on the inner wall of the groove, and the positioning part is matched with the pits to position the rotating angle of the rotating disc;

one end of the fixed rod is rotatably connected to the turntable.

Preferably, the rotating block is an inverted T-shaped columnar rotating block, and the bottom plate is provided with a T-shaped mounting hole matched with the rotating block.

Preferably, the rotating block comprises a first part and a second part, the first part is arranged below the second part, a first protrusion which axially surrounds the first part is arranged on the upper surface of the first part, and a second protrusion which circumferentially surrounds the second part is arranged on the outer wall of the second part.

Preferably, the lower part of the object placing plate is bent to form a bent part, and the bent part is used for supporting an object;

the object placing plate is provided with heat dissipation holes.

Preferably, the working surface of the object placing plate is provided with an anti-slip pad, and the bottom surface of the bottom plate is provided with an anti-slip pad.

The utility model also discloses a display, a serial communication port, include as above-mentioned button type elevation structure or as above-mentioned support.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a button type elevation structure realizes the slip and the locking of telescopic link through the draw-in groove cooperation button that sets up on the telescopic link, promotes the button through the spring and resets for it is convenient to operate the button once more.

In addition, through setting up a plurality of draw-in grooves for the adjustable range of the flexible length of telescopic link is wider. Set up to right trapezoid through the cross-section with the draw-in groove, set up right trapezoid's hypotenuse and the extension direction's of telescopic link contained angle into the acute angle for smooth when the telescopic link extends, need not press the button and can realize the extension, and the button can be at the right-angle side of telescopic link butt draw-in groove after stopping, makes telescopic link and button can the joint stable.

The utility model also provides a support, this support pass through dead lever and telescopic link connection bottom plate and put the thing board for put the interval between thing board and the bottom plate and can adjust, can be applicable to multiple scene. The telescopic rod can be limited after moving relative to the fixed rod, and then the position of the telescopic rod after moving relative to the fixed rod can be fixed, so that a user can normally use the support.

In addition, be provided with on the bottom plate rather than rotating the revolution mechanic who is connected, rotation through revolution mechanic and then can make the dead lever with put the thing board and can rotate for the bottom plate for it is convenient that the user rotates electronic equipment. Through the arrangement of the rolling pieces and the grooves, the rotary table can rotate in a labor-saving manner. Through setting up setting element and pit for the carousel can be fixed after the rotation is accomplished, guarantees to stabilize in the use. The rotating block is arranged into the inverted T-shaped rotating block, so that the combination between the rotating structure and the bottom plate is more stable. The friction between the rotating block and the bottom plate is reduced by arranging the column axially surrounding the upper surface of the first part. The friction force between the rotating block and the bottom plate is further reduced by arranging the cylinder which circumferentially surrounds the outer wall surface of the second part. By selecting the polyformaldehyde rotary block, the friction between the rotary block and the bottom plate is further reduced. The article is not easy to slip due to the bending part arranged on the article placing plate. Through set up the louvre on putting the thing board for the support does not influence electronic equipment's heat dissipation in the use. The non-slip mat is arranged on the working face of the object placing plate and the bottom face of the bottom plate, so that the support is stable in the using process.

The utility model also provides a display, this display includes foretell button elevation structure or support to possess all advantages of the two.

Drawings

Fig. 1 is an exploded view of a key lifting structure according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of the portion A of FIG. 2;

fig. 4 is a schematic structural diagram of a key according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a first viewing angle of a bracket according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a second viewing angle of the bracket according to an embodiment of the present invention;

FIG. 7 is an exploded view of FIG. 1;

fig. 8 is an exploded view of a turntable and a rotary block according to an embodiment of the present invention;

fig. 9 is an exploded view of a base plate and a rotary block according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a bottom plate according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a rotary block according to an embodiment of the present invention;

FIG. 12 is a top view of FIG. 11;

fig. 13 is a front view of fig. 11.

Description of the main element symbols: 10-bottom plate, 11-groove, 12-pit, 13-mounting hole, 20-object placing plate, 21-bending part, 22-heat dissipation hole, 23-non-slip mat, 30-fixing rod, 40-telescopic rod, 41-clamping groove, 50-limiting part, 51-shell, 52-key, 521-lug, 5211-inclined plane, 53-elastic part, 60-rotating structure, 61-rotating block, 611-first part, 6111-first bulge, 612-second part, 6121-second bulge, 62-rotating disc, 621-rolling part, 622-positioning part, 70-connecting block, 80-mounting seat and 90-sliding block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Moreover, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific type and configuration may or may not be the same), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Examples

The electronic equipment support is widely applied to various scenes in life, for example, a user places a tablet computer or a notebook computer by using the support, so that the notebook computer or the tablet computer is at a proper height and angle, and the user can conveniently work or entertain through the notebook computer or the tablet computer.

But the connecting rod of current electronic equipment leg joint bottom plate and placing the board can not extend, if the user leans back (eyes are far away from the electronic equipment screen) this moment, then the user can only move support and electronic equipment simultaneously, just can see the screen clearly. However, if the user leans back far, the supporting object such as a table on which the stand is placed is similarly far from the user, and at this time, the problem cannot be solved only by moving the stand, so that the application range of the stand is limited.

Therefore, the present invention discloses a key type lifting structure as shown in fig. 1-4, which comprises a fixing rod 30, a telescopic rod 40 and a limiting member 50. The telescopic rod 40 is slidably connected with the fixing rod 30. The stopper 50 is installed on the fixing rod 30 to limit the position of the telescopic rod 40. When the user needs to extend or contract the telescopic rod 40, the locking of the limiting part 50 is firstly released, the telescopic rod 40 is moved at the moment, the telescopic rod 40 is moved to a proper length, then the telescopic rod 40 is limited by the limiting part 50, and the position of the telescopic rod 40 can be fixed. The user can conveniently adjust the extension length of the telescopic rod 40 by matching the limiting part 50 with the telescopic rod 40.

Specifically, referring to fig. 1, the fixing rod 30 is a hollow rod, and the telescopic rod 40 is slidably connected to an inner cavity of the fixing rod 30 and slides along an extending direction of the inner cavity.

The stopper 50 may be a bolt, a screw, or another component, and the bolt or the screw is screwed and penetrates through the sidewall of the fixing rod 30, and one end of the bolt or the screw abuts against the slide rod. The telescopic rod 40 can be fixed by tightening the bolt or screw.

Further, to make the operation of the limiting element 50 more convenient, as shown in fig. 2-4, the limiting element 50 includes a housing 51, a button 52 and an elastic element 53, the housing 51 is fixedly connected to the fixing rod 30; the key 52 is rotatably connected to the housing 51; the elastic member 53 is disposed between the housing 51 and the button 52 for driving the button 52 to reset.

The telescopic rod 40 is provided with a clamping groove 41 matched with the key 52. When the button 52 is pressed down, the button 52 is separated from the clamping groove 41 to unlock the telescopic rod 40, and when pressure is not applied to the button 52 any more, the button 52 is reset under the elastic force of the spring, the button 52 is clamped with the clamping groove 41 again, and the telescopic rod 40 is locked.

The catching grooves 41 are generally provided in plural, and the plural catching grooves 41 are arranged in parallel along the sliding direction of the telescopic rod 40. The arrangement of the clamping grooves 41 enables the adjustable range of the telescopic rod 40 to be larger, and the adjustment precision to be higher.

Preferably, in an embodiment of the present invention, in order to make the limiting member 50 more beautiful, as shown in fig. 3, the housing 51 is generally configured as a sleeve, and the sleeve is sleeved on the outer wall surface of the fixing rod 30. And through holes are arranged at the positions of the sleeve and the fixed rod 30 corresponding to the keys 52, so that the structures of the keys 52 and the clamping grooves 41 can pass through the side walls of the sleeve and the fixed rod 30 to be abutted against the clamping grooves 41.

When the user operates the telescopic rod, the key 52 on one side of the elastic piece 53 is pressed by a finger, at this time, the key 52 rotates clockwise, the part of the key 52, which is clamped with the clamping groove 41, leaves the clamping groove 41, and the locking between the key 52 and the telescopic rod 40 is released.

After the user extends the telescopic rod 40 by a required length, the user releases the button 52, and the button 52 is rotated counterclockwise under the action of the elastic member 53 to be reset, so that the button 52 is engaged with the engaging groove 41, and the telescopic rod 40 is fixed.

As shown in fig. 4, a protrusion 521 is disposed on the key 52 and has a shape matching with the shape of the slot 41, so as to ensure that the key 52 can lock the telescopic rod 40.

For making telescopic link 40 can extend the convenience, the cross-section of draw-in groove 41 sets up to right trapezoid, and right trapezoid's lower bottom is just to button 52, and right trapezoid's right-angle side is used for carrying out the locking with button 52 butt to telescopic link 40. With right trapezoid's hypotenuse complex, set up lug 521 and the relative one side of hypotenuse into inclined plane 5211, when telescopic link 40 extends, the spigot surface of draw-in groove 41 (draw-in groove 41 cross-section sets up to right trapezoid, draw-in groove 41 then is provided with the inclined plane among the spatial structure, naming this inclined plane and being the spigot surface) and lug 521's inclined plane 5211 cooperate each other, comparatively smoothly during the messenger telescopic link 40 roll-off (after lug 521 and draw-in groove 41 all set up inclined plane 5211 promptly, need not press button 52 again during the extension of telescopic link 40, outside pulling telescopic link 40 can).

The elastic member 53 is typically a compression spring to provide a pushing force to the button 52.

Specifically, one end of the telescopic rod 40 is provided with a sliding block 90, and the sliding block 90 is a polyformaldehyde sliding block. After the telescopic rod 40 is connected with the polyformaldehyde sliding block 90, the telescopic rod 40 slides more smoothly in the inner cavity of the fixing rod 30, so that the operation of the lifting structure is smoother.

In order to facilitate the connection of the key type elevating structure with other devices, the key type elevating structure further includes a mounting seat 80 and a connection block 70. One end of the fixing rod 30 is provided with a connecting block 70, one end of the telescopic rod 40 is provided with a connecting block 70, and the connecting block 70 is rotatably connected with the mounting seat 80. That is, the two ends of the rod body formed by combining the fixing rod 30 and the telescopic rod 40 are both provided with the connecting block 70 and the mounting seat 80, and at this time, the lifting structure can be conveniently connected with other devices.

Specifically, the connecting block 70 and the mounting seat 80 are in interference fit, so as to provide a certain damping for the rotation of the connecting block 70, and the connecting block 70 and the fixing rod 30 or the telescopic rod 40 can stay at a fixed position.

The utility model also discloses a support as shown in fig. 5-7, which comprises a bottom plate 10, a storage plate 20 and a key lifting structure. This support can go up and down to put thing board 20 through button elevation structure for put the length that thing board can extend the difference, and then make the support can both normally work under multiple scene.

In order to make the object placing plate 20 rotate relative to the bottom plate 10, and further make the support have a wider application range, the support further comprises a rotating structure 60.

Referring to fig. 8 to 10, the rotating structure 60 includes a rotating block 61 and a rotating disk 62. The rotary block 61 is rotatably connected with the base plate 10, and the rotary disc 62 is fixedly connected with the rotary block 61. One end of the fixing lever 30 is rotatably connected to the turntable 62. The fixing rod 30 and the expansion link 40 cooperate to adjust the height of the placing plate 20 with respect to the base plate 10. When the object placing plate 20 or the fixing rod 30, which cannot move circumferentially relative to the rotating disc 62, is pushed to rotate, the rotating disc 62 rotates relative to the bottom plate 10, and then the rotating disc 62 drives the object placing plate 20 to rotate, so that the electronic device faces the user again.

After the rotating disc 62 is connected to the fixing rod 30, the weight of the placed electronic product and the object placing plate 20 will all act on the rotating disc 62. The turntable 62 should be supported by the base plate 10 to avoid failure of the rotatable connection between the rotary block 61 and the base plate 10.

In order to make the turntable 62 supported and the rotary block 61 rotate smoothly relative to the base plate 10, a rolling member 621 is disposed on the bottom surface of the turntable 62 (the bottom surface of the turntable 62 in use, and the left side of the turntable 62 in fig. 8), a groove 11 is disposed at a position where the base plate 10 and the rolling member 621 cooperate, and the rolling member 621 is connected to the inner wall of the groove 11 in a rolling manner. The groove 11 is used to guide the rolling member 621, the groove 11 is provided in a ring shape and the groove 11 is sized according to a rotation radius of the rolling member 621.

The rolling members 621 may be rollers, balls, etc. to provide sufficient support for the turntable 62 based on the low friction of the rotating structure 60.

The rollers or balls are usually provided in plural numbers so that the turntable 62 is supported smoothly.

After the turntable 62 is rotated, the position of the turntable 62 needs to be fixed so that the position of the electronic device supported by the stand is fixed.

As shown in fig. 8, a positioning member 622 is disposed on the lower surface of the turntable 62, and a plurality of annularly distributed concave pits 12 are disposed on the bottom plate 10. In order to provide less friction with the base plate 10 during rotation of the turntable 62, the positioning member 622 is typically provided as a positioning ball to provide a smaller contact area. Since the pits 12 are sunken pits, the pits 12 surround the lower portion of the positioning beads. When the positioning ball is in the pit 12, if the positioning ball is to be separated from the pit 12, the positioning ball is equivalent to the movement required to be vertical to the bottom plate 10. Since the rotary block 61 can only rotate relative to the base plate 10, and the rotary block 61 and the rotary disc 62 are fixedly connected. When the positioning ball is rotated, the positioning ball is pressed against the rotating block 61 and the rotating disc 62, and the positioning ball cannot leave the concave pit without external force. The position of the dial 62 is relatively fixed and the dial 62 will not rotate under forces that do not exceed its threshold of rotation. When the turntable 62 rotates left and right under external force, the positioning beads rotate along with the rotation. After the positioning balls rotate for a certain angle, the positioning balls move from one concave pit 12 to another adjacent concave pit 12, at the moment, the acting force is stopped being exerted on the rotating disc 62, and the rotating disc 62 can be clamped again through the matching of the positioning balls and the concave pits 12.

The positioning members 622 are generally provided in two numbers, and the two positioning members 622 are symmetrically distributed on both sides of the turntable 62, so that the turntable 62 is uniformly stressed in the left and right directions.

The angle of rotation required between adjacent pits 12 can be set small, e.g., 5-10 °, to make the turntable 62 more adaptable to the scene.

The well 12 should be a shallow well to ensure that the spacer bead can more easily leave the current well 12 after entering the well 12.

With reference to fig. 11 and 8, in an embodiment of the present invention, the rotating block 61 is an inverted "T" shaped rotating block 61, and the bottom plate 10 is provided with an inverted "T" shaped mounting hole 13 matched with the rotating block 61.

As shown in fig. 9, the inverted "T" shaped rotary block 61 and the rotary disc 62 are fixedly connected to form an "i" shaped rotary structure 60. When the i-shaped rotating structure 60 is combined with the bottom plate 10, the bottom plate 10 is stably clamped with the middle part of the i-shaped rotating structure 60.

Generally, in order to allow the rotation block 61 to rotate smoothly in the mounting hole 13, two parts of the rotation block 61 perpendicular to each other are provided as coaxial cylinders.

As shown in fig. 8, the rotary block 61 is fixedly connected to the rotary plate 62 by screws. The screws are usually provided with three or more screws to ensure that the rotating block 61 and the rotating disc 62 are firmly connected.

Referring to fig. 11-13, to better describe the rotating block 61, the rotating block 61 is divided into a first portion 611 and a second portion 612, the first portion 611 being disposed below the second portion 612.

In order to make the friction force when the rotation block 61 rotates relative to the base plate 10 smaller, a plurality of axially surrounding first protrusions 6111 are provided on the upper surface of the first portion 611, referring to fig. 12 and 13. After the first protrusion 6111 is disposed on the upper surface of the first portion 611, the contact surface between the first portion 611 and the base plate 10 only exists in the first protrusion 6111, and compared with the contact surface between the entire upper surface of the first portion 611 and the base plate 10, the contact area is greatly reduced, so that the friction force between the rotating block 61 and the base plate 10 is greatly reduced.

Similarly, in order to reduce the friction when the rotation block 61 rotates relative to the base plate 10, a plurality of circumferentially surrounding second protrusions 6121 are also provided on the sidewall of the second portion 612. After the second protrusion 6121 is circumferentially arranged on the sidewall of the second portion 612, the contact surface between the second portion 612 and the bottom plate 10 only exists in the second protrusion 6121, and compared with the contact surface between the sidewall of the whole first portion 611 and the bottom plate 10, the contact area is greatly reduced, and thus the friction force between the rotating block 61 and the bottom plate 10 is greatly reduced.

The first projection 6111 and the second projection 6121 may be one of a hemisphere, a pyramid, a semicylinder, an arc column, a prism, and the like.

In order to further reduce the friction between the rotary block 61 and the bottom plate 10, the rotary block 61 is made of polyoxymethylene (polyoxymethylene) rotary block 61. The polyoxymethylene material has a low friction coefficient and good geometric stability, so that the rotor 61 also has the characteristics, and the rotor 61 and the base plate 10 can smoothly rotate.

Furthermore, all rotating parts of the bracket can be made of polyformaldehyde materials, so that the whole bracket can rotate smoothly.

In order to better support the electronic product, as shown in fig. 5, the lower portion of the object placing plate 20 is bent and forms a bent portion 21, and the object placing plate 20 is an "L" shaped object placing plate 20, at this time, the electronic product is not easy to slip off from the object placing plate 20.

In order to maintain good heat dissipation performance of the electronic product when the electronic product is placed on the object placing plate 20, the heat dissipation holes 22 are formed in the object placing plate 20. The heat generating part of the electronic equipment can keep normal heat dissipation as much as possible by setting the size of the heat generating part to be larger.

In order to further enable the position of the electronic device to be relatively fixed after the placement of the electronic device is completed, the anti-slip pad 23 is disposed on the working surface (the surface on which the electronic product is placed) of the object placing plate 20, and the anti-slip pad 23 is similarly disposed on the bending portion.

As shown in fig. 6, in order to prevent the rack from sliding after the electronic product is placed on the rack, a non-slip pad 23 is also provided on the bottom surface of the base plate 10. The non-slip pad 23 is usually a silicone pad.

The utility model also discloses a display, this display possesses foretell button elevation structure or foretell support to this display possesses button elevation structure or all advantages of support.

It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.

Claims (10)

1. Button type elevation structure, its characterized in that includes:

a fixing rod;

the telescopic rod is connected with the fixed rod in a sliding manner, and a clamping groove is formed in the telescopic rod;

the limiting piece is arranged on the fixed rod and comprises a shell, a key and an elastic piece, and the shell is fixedly connected to the fixed rod; the key is rotationally connected to the shell; the elastic piece is arranged between the key and the shell and used for driving the key to be pressed into the clamping groove.

2. The key-type lifting structure according to claim 1, wherein a plurality of the slots are provided, and the slots are arranged in parallel along the extension direction of the telescopic rod.

3. The key-press type lifting structure according to claim 2, wherein the cross-sectional shape of the locking groove is a right trapezoid, and an included angle between a hypotenuse of the right trapezoid and the extending direction of the telescopic rod is an acute angle.

4. A stent, comprising:

a base plate;

a storage plate;

the key type elevating structure according to any one of claims 1 to 3, wherein one end of the fixing rod is connected to the base plate, and one end of the expansion rod is connected to the storage plate.

5. A stand according to claim 4, further comprising:

the rotating structure comprises a rotating block and a rotating disc, the rotating block is rotatably connected with the bottom plate, the rotating disc is fixedly connected with the rotating block, a rolling part and a positioning part are arranged on the bottom surface of the rotating disc, an annular groove and a plurality of annularly distributed pits are arranged on the bottom plate, the rolling part is rotatably connected on the inner wall of the groove, and the positioning part is matched with the pits to position the rotating angle of the rotating disc;

one end of the fixed rod is rotatably connected to the turntable.

6. A support according to claim 5, wherein the rotary block is an inverted T-shaped cylindrical rotary block, and the bottom plate is provided with a T-shaped mounting hole matched with the rotary block.

7. A support according to claim 5, wherein the rotary block comprises a first part and a second part, the first part is arranged below the second part, the upper surface of the first part is provided with a first protrusion which axially surrounds, and the outer wall of the second part is provided with a second protrusion which circumferentially surrounds.

8. The rack of claim 4, wherein the lower part of the object placing plate is bent to form a bent part, and the bent part is used for supporting an object;

the object placing plate is provided with heat dissipation holes.

9. A support according to claim 4, wherein the shelf has non-slip pads on its working surface and the bottom surface of the base plate has non-slip pads on its bottom surface.

10. A display comprising a push button lift mechanism according to any of claims 1 to 3 or a stand according to any of claims 4 to 9.

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