CN210692017U

CN210692017U - Liftable advertisement structure

Info

Publication number: CN210692017U
Application number: CN202020029545.6U
Authority: CN
Inventors: 陈丹
Original assignee: Dongguan New Power Advertising Co Ltd
Current assignee: Dongguan New Power Advertising Co Ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-06-05
Anticipated expiration: 2030-01-07

Abstract

The utility model belongs to the technical field of advertisement show technique and specifically relates to a liftable advertisement structure is related to, its technical scheme main points are: the advertisement frame comprises a base, wherein a fork shearing frame is arranged on the base along the vertical direction, a lifting platform is arranged on the fork shearing frame, and an advertisement fixing frame is arranged on the lifting platform; the scissor frame comprises a first lifting support and a second lifting support, wherein the first lifting support and the second lifting support are formed by sequentially hinging a plurality of lifting support arms, two lifting support arms at the top of the first lifting support and the top of the second lifting support are transmission support arms, two lifting support arms at the bottom of the first lifting support and the bottom of the second lifting support are driving support arms, and a base is provided with a driving mechanism which is used for driving the two driving support arms to be close to or far away from each other; be equipped with the subassembly that slides between elevating platform and the transmission support arm, the transmission support arm slides through the subassembly that slides and connects in the elevating platform, the utility model discloses have the function that realizes that the advertisement mount goes up and down, play the effect that the convenience was changed the advertisement content in the advertisement mount.

Description

Liftable advertisement structure

Technical Field

The utility model belongs to the technical field of advertisement show technique and specifically relates to a liftable advertisement structure is related to.

Background

Advertising is a commercial means for promoting, promoting and promoting products or services, and advertising structures are a material carrier that plays an important role in the delivery of advertising information. In real life, advertising structures are commonly used on streets and highways in the form of billboard racks and poster display racks.

At present, chinese patent document with patent publication No. CN204360731U discloses a lifting advertisement frame, which includes a supporting frame, an advertisement fixing frame installed on the upper end of the supporting frame, a motor installed on the supporting frame and used for controlling the advertisement fixing frame to lift up and down, and a control switch used for controlling the motor to work; the support frame comprises a support rod and a support located at the upper end of the support rod and used for fixing the advertisement fixing frame, the motor is installed inside the support, and the motor is connected with the advertisement fixing frame through a traction rope. Through starting the control switch, the motor drives the advertisement fixing frame to move up and down through the traction rope, and when the advertisement fixing frame moves down to the ground, an operator can replace the advertisement content in the advertisement fixing frame.

The utility model discloses a simplified the change degree of difficulty of advertisement content, reduced the operation workman dangerous when the advertisement mount is changed in the high altitude to operation workman's personal safety has been ensured. And simultaneously, the utility model provides a new technical scheme realizes the lift of advertisement mount to the advertisement content in the advertisement mount is changed to convenient operation workman.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a liftable advertisement structure, this advertisement structure have the function that realizes that the advertisement mount goes up and down, play the effect that makes things convenient for the operation workman to change the advertisement content in the advertisement mount.

In order to achieve the above object, the utility model provides a following technical scheme:

a liftable advertisement structure comprises a base, wherein a fork shearing frame is arranged on the base along the vertical direction, a lifting table is arranged at the top of the fork shearing frame along the horizontal direction, and an advertisement fixing frame is arranged on the lifting table; the scissor frame comprises two groups of first lifting supports and second lifting supports which are parallel to each other, wherein each of the first lifting supports and the second lifting supports is formed by sequentially hinging a plurality of lifting support arms, the two lifting support arms positioned at the tops of the first lifting supports and the second lifting supports are transmission support arms, the two lifting support arms positioned at the bottoms of the first lifting supports and the second lifting supports are driving support arms, a driving mechanism is arranged on the base and is used for simultaneously driving the two driving support arms in the first lifting supports and the two driving support arms in the second lifting supports to be close to or far away from each other; the bottom of elevating platform with be provided with the subassembly that slides between the transmission support arm, the transmission support arm pass through the subassembly that slides and connect in the bottom of elevating platform.

By adopting the technical scheme, the two driving support arms in the first lifting support and the two driving support arms in the second lifting support are simultaneously away from each other by starting the driving mechanism, so that the fork-shearing frame is contracted downwards and the whole height is lowered, and the lifting platform drives the advertisement fixing frame to be lowered to the ground, thereby facilitating the replacement of the advertisement content in the advertisement fixing frame by an operator; after the advertisement content is replaced by an operator, the driving mechanism is started again, under the action of the driving mechanism, the two driving support arms in the first lifting support and the two driving support arms in the second lifting support are close to each other at the same time, so that the fork shearing frame extends upwards, the overall height of the fork shearing frame is increased, the lifting platform drives the advertisement fixing frame to lift upwards, and the advertisement fixing frame is restored to the display position.

The utility model discloses further set up to: the driving mechanism comprises a first driving seat, a second driving seat, a bidirectional screw rod and a driving device, one end of the first driving seat is rotatably connected to one of the driving support arms in the first lifting support, and one end of the second driving seat is rotatably connected to the other driving support arm in the first lifting support; one end of the first driving seat, far away from the first lifting support, is rotatably connected to one of the driving support arms in the second lifting support, one end of the second driving seat, far away from the first lifting support, is rotatably connected to the other driving support arm in the second lifting support, and the first driving seat and the second driving seat are parallel to each other; two-way lead screw rotate connect in on the base, two-way lead screw includes that the screw revolves to opposite first screw portion and second screw portion, two-way lead screw run through in proper order set up in first drive seat and in the second drive seat, just first drive seat threaded connection in on the first screw portion, second drive seat threaded connection in on the second screw portion, drive arrangement set up in on the base, drive arrangement is used for the drive two-way lead screw forward rotates and the antiport.

Through adopting above-mentioned technical scheme, through rotating two-way lead screw, under the effect of two-way lead screw, two first drive seats that are parallel to each other and second drive seat are close to each other or keep away from, and at this moment, first drive seat and second drive seat drive two drive support arms of first lifting support and two drive support arms of second lifting support respectively and are close to each other or keep away from to the lift of fork frame has been realized.

The utility model discloses further set up to: the driving device comprises a speed reducer and a servo motor, the servo motor and the speed reducer are arranged on the base, an output shaft of the servo motor is connected with an input shaft of the speed reducer, and an output shaft of the speed reducer is connected with one end of the bidirectional screw rod.

Through adopting above-mentioned technical scheme, servo motor has the advantage that can realize forward rotation and reverse rotation, has satisfied the operating mode well, and can increase servo motor's output torque through the reduction gear, has satisfied the power demand when scissor-fork frame goes up and down.

The utility model discloses further set up to: the utility model discloses a drive the base, including the base, first drive seat, second drive seat, first guide hole, first drive seat, second drive seat, first drive seat and second drive seat, be provided with first guide hole along horizontal direction fixedly connected with guide bar on the base, run through on the first drive seat, run through on the second drive seat and be provided with the second guide hole, the guide bar run through in proper order in first guide hole and second guide hole, just first drive seat and the second drive seat slide respectively connect in on the guide bar.

Through adopting above-mentioned scheme, the guide bar plays the guide effect to the removal of first drive seat and second drive seat for first drive seat and second drive seat are more stable when moving.

The utility model discloses further set up to: the sliding assembly comprises a sliding block, a first sliding groove and a second sliding groove, the sliding block is hinged to the first lifting support body, the transmission support arm is arranged on the second lifting support body, the first sliding groove and the second sliding groove are respectively arranged at the bottom of the lifting platform in the horizontal direction, the first sliding groove and the second sliding groove are parallel to each other, the sliding block on the first lifting support body is connected to the first sliding groove in a sliding mode, and the sliding block on the second lifting support body is connected to the second sliding groove in a sliding mode.

By adopting the technical scheme, the sliding block slides in the first sliding groove and the second sliding groove respectively, wherein the first sliding groove provides a degree of freedom of movement for the two transmission support arms positioned at the top end of the first lifting support, so that the two transmission support arms on the first lifting support can be close to or far away from each other, and the extending, stretching, contracting and downward moving actions of the first lifting support can be realized; similarly, the second chute provides freedom of movement for two transmission support arms located at the top end of the second lifting support, so that the two transmission support arms on the second lifting support can be close to or far away from each other, and further the extending, stretching, contracting and downward moving actions of the second lifting support can be realized.

The utility model discloses further set up to: the slider, first spout and the second spout all is the swallow-tail form setting.

Through adopting above-mentioned technical scheme, be slider, first spout and the second spout that the dovetail set up for the slider is difficult for the pine to take off in first spout and second spout when sliding respectively in first spout and second spout, makes the slider more stable at the in-process that slides.

The utility model discloses further set up to: the number of the advertisement fixing frames can be multiple.

Through adopting above-mentioned technical scheme, a plurality of advertisement mounts can play the effect that increases the area is posted to advertisement content.

The utility model discloses further set up to: the base is provided with a protective cover, the interior of the protective cover is hollow, and the driving device is located in the protective cover.

Through adopting above-mentioned technical scheme, the protection casing plays the effect of keeping apart drive arrangement, prevents that drive arrangement from receiving the impact and destroying.

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

1. by starting the driving mechanism, the fork shearing frame is contracted downwards and the whole height is reduced, so that the wide replacement of an operator is facilitated; starting the advertisement content feeding mechanism in the driving advertisement fixing frame again to enable the fork shearing frame to extend upwards and elongate and increase the overall height, further enabling the lifting platform to drive the advertisement fixing frame to lift upwards, and enabling the advertisement fixing frame to recover to the display position;

2. the servo motor has the advantages of realizing forward rotation and reverse rotation, well meeting the working condition, increasing the output torque of the servo motor through the speed reducer and meeting the power requirement when the fork shearing frame is lifted;

3. the protection casing plays the effect of keeping apart drive arrangement, prevents that drive arrangement from receiving the impact and destroying.

Drawings

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

fig. 2 is a schematic structural diagram of another view angle in the embodiment of the present invention;

fig. 3 is a schematic view of an assembly structure between the lifting platform and the sliding block in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of the embodiment of the present invention after installing a protective cover.

In the figure, 1, a base; 101. a first mounting seat; 102. a second mounting seat; 2. a fork shearing frame; 21. a first lifting bracket; 22. a second lifting bracket; 3. a lifting platform; 4. an advertisement fixing frame; 5. lifting the support arm; 51. a transmission support arm; 52. driving the support arm; 6. a drive mechanism; 61. a first driving seat; 611. a first guide hole; 62. a second driving seat; 621. a second guide hole; 63. a bidirectional screw rod; 631. a first threaded portion; 632. a second threaded portion; 64. a drive device; 641. a speed reducer; 642. a servo motor; 7. a slipping component; 71. a slider; 72. a first chute; 73. a second chute; 8. a guide bar; 9. a protective cover; 91. and (4) heat dissipation holes.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a liftable advertisement structure, including base 1, base 1 is rectangular plate-like, and base 1 places in subaerial along the level, and base 1 accessible concrete placement's mode is fixed in subaerial. In addition, a fork shearing frame 2 is arranged on the base 1 along the vertical direction, a lifting platform 3 is arranged at the top of the fork shearing frame 2 along the horizontal direction, and the lifting platform 3 is rectangular plate-shaped. The elevating platform 3 is provided with an advertisement fixing frame 4, the advertisement fixing frame 4 is mainly used for displaying advertisement contents, and the elevating platform 3 is mainly used for installing the advertisement fixing frame 4. Wherein, advertising content can be hung or put up on advertisement mount 4 for the carrier through the poster, and the advertisement mount 4 here can be the frame form and also can be rectangular plate-like, and in this embodiment, advertisement mount 4 is rectangular plate-like setting, and the bottom of advertisement mount 4 is through welded mode fixed connection on elevating platform 3, so makes advertisement mount 4 fixed for elevating platform 3. In addition, the number of the advertisement fixing frames 4 can be set to be plural, for example, in the present embodiment, the number of the advertisement fixing frames 4 is four, the four advertisement fixing frames 4 are uniformly arranged along the circumferential direction of the lifting table 3, and by setting the plural advertisement fixing frames 4, the effect of increasing the advertisement content posting area can be achieved.

In order to facilitate the replacement of the advertisement content in the advertisement fixing frame 4 by the operation worker, the utility model discloses a set up the fork shearing frame 2 to the lift of the driving elevating platform 3.

Referring to fig. 1, specifically, the fork shearing frame 2 is composed of two sets of first lifting supports 21 and second lifting supports 22 which are parallel to each other, and each of the first lifting supports 21 and the second lifting supports 22 is formed by sequentially hinging a plurality of lifting support arms 5. In this embodiment, first lifting support 21 and second lifting support 22 equally divide and do not constitute by six lifting support arms 5, wherein, lifting support arm 5 is rectangular shaft-like, in six lifting support arms 5, per two lifting support arms 5 divide into a set of, interconnect is carried out through articulated mode in the middle part of two lifting support arms 5 in every group, so make two lifting support arms 5 between mutual rotation, and meanwhile, every lifting support arm 5 of group is through articulated back each other, four tip formation four hinged ends of two lifting support arms 5. In addition, three lifting support arms 5 of group are range upon range of setting along vertical direction, respectively share two hinged ends between two adjacent groups of lifting support arms 5, and the one-to-one ground is articulated between the different hinged ends in the lifting support of different groups, so make three lifting support arms 5 of group constitute transmission structure, carry out rotation each other between two lifting support arms 5 through driving a set of, can realize rotating between two other two sets of lifting support arms 5. It should be noted that the number of sets of lifting arms 5 may be overlapped or reduced according to the actual lifting height required, and the connection manner and transmission principle between the sets of lifting arms 5 are the same as the implementation principle in the embodiment, and are not described herein again.

Referring to FIG. 1, the two lifting arms 5 at the top of the first lifting support 21 and the top of the second lifting support 22 are the drive arms 51, and the two lifting arms 5 at the bottom of the first lifting support 21 and the bottom of the second lifting support 22 are the drive arms 52.

Referring to fig. 2, the base 1 is provided with a driving mechanism 6, and the driving mechanism 6 is configured to simultaneously drive the two driving arms 52 of the first lifting support 21 and the two driving arms 52 of the second lifting support 22 to move close to or away from each other, so that the lifting effect between the first lifting support 21 and the second lifting support 22 can be achieved.

Specifically, the driving mechanism 6 includes a first driving seat 61, a second driving seat 62, a bidirectional screw 63, and a driving device 64. One end of the first driving seat 61 is hinged to one driving support arm 52 in the first lifting support 21, and one end of the second driving seat 62 is hinged to the other driving support arm 52 in the first lifting support 21; one end of the first driving seat 61, which is far away from the first lifting support 21, is hinged to one of the driving arms 52 in the second lifting support 22, one end of the second driving seat 62, which is far away from the first lifting support 21, is hinged to the other driving arm 52 in the second lifting support 22, and the first driving seat 61 and the second driving seat 62 are parallel to each other. By driving the first driving seat 61 and the second driving seat 62 to approach or separate from each other, the two driving arms 52 in the first lifting support 21 and the two driving arms 52 in the second lifting support can approach or separate from each other at the same time, so that the first lifting support 21 and the second lifting support 22 can be lifted synchronously, and the lifting platform 3 can be horizontally arranged in the lifting process.

Referring to fig. 2, the bidirectional screw 63 is rotatably connected to the base 1 along a horizontal direction, wherein a first mounting seat 101 and a second mounting seat 102 are respectively and convexly arranged at the top of the base 1, the first mounting seat 101 and the second mounting seat 102 are arranged at intervals, the first mounting seat 101 and the second mounting seat 102 are integrally formed with the base 1, one end of the bidirectional screw 63 is rotatably supported on the first mounting seat 101, one end of the bidirectional screw 63, which is far away from the first mounting seat, is rotatably supported on the second mounting seat 102, and the bidirectional screw 63 penetrates through the second mounting seat 102. In addition, the bidirectional screw 63 includes a first screw portion 631 and a second screw portion 632 with opposite screw rotation directions, the first screw portion 631 and the second screw portion 632 are disposed on a side wall of the bidirectional screw 63 along a length direction of the bidirectional screw 63, the bidirectional screw 63 sequentially penetrates through the first driving seat 61 and the second driving seat 62 along a horizontal direction, the first driving seat 61 is screwed on the first screw portion 631, the second driving seat 62 is screwed on the second screw portion 632, by rotating the bidirectional screw 63, the first driving seat 61 and the second driving seat 62 can be close to or away from each other under the action of the bidirectional screw 63, it should be noted that, in a process that the first driving seat 61 and the second driving seat 62 are close to or away from each other, bottom surfaces of the two driving seats slide and abut against an upper surface of the base 1, the base 1 has a limiting effect on the first driving seat 61 and the second driving seat 62, the first driving seat 61 and the second driving seat 62 are prevented from rotating due to the rotation of the bidirectional screw 63.

Referring to fig. 2, a driving device 64 is disposed on the base 1, and the driving device 64 is used for driving the bidirectional screw 63 to rotate in the forward direction and in the reverse direction. Specifically, the driving device 64 includes a speed reducer 641 and a servo motor 642, both the servo motor 642 and the speed reducer 641 are mounted on the base 1, an output shaft of the servo motor 642 is connected to an input shaft of the speed reducer 641 through a coupling (not shown), and an output shaft of the speed reducer 641 is connected to the bidirectional screw 63 through a coupling and penetrates through one end of the second mounting base 102. By starting the servo motor 642, the servo motor 642 can output torque to the bidirectional screw 63, and the servo motor 642 has the advantage of realizing forward rotation and reverse rotation, thereby well meeting the working condition, increasing the output torque of the servo motor 642 by the reducer 641 and meeting the power requirement when the fork shearing frame 2 is lifted.

Referring to fig. 3, a sliding assembly 7 is disposed between the bottom of the lifting platform 3 and the transmission arm 51, and the transmission arm 51 is slidably connected to the bottom of the lifting platform 3 through the sliding assembly 7. Specifically, the sliding assembly 7 includes a sliding block 71, a first sliding groove 72 and a second sliding groove 73, the sliding block 71 is respectively hinged to the hinged end of the transmission arm 51 of the first lifting support 21 and the hinged end of the transmission arm 51 of the second lifting support 22, the first sliding groove 72 and the second sliding groove 73 are respectively opened at the bottom of the lifting platform 3 along the horizontal direction, the first sliding groove 72 and the second sliding groove 73 are both formed by sinking from bottom to top on the bottom surface of the lifting platform, the first sliding groove 72 and the second sliding groove 73 are parallel to each other, the sliding block 71 on the first lifting support 21 is connected in the first sliding groove 72 in a sliding manner, and the sliding block 71 on the second lifting support 22 is connected in the second sliding groove 73 in a sliding manner. The first sliding chute 72 provides a degree of freedom for the two transmission arms 51 at the top end of the first lifting support 21, so that the two transmission arms 51 on the first lifting support 21 can be close to or away from each other, and the extending, contracting and moving down of the first lifting support 21 can be realized; similarly, the second sliding slot 73 provides a degree of freedom for the two driving arms 51 at the top end of the second lifting support 22, so that the two driving arms 51 on the second lifting support 22 can be close to or away from each other, and the extending, contracting and moving down of the second lifting support 22 can be realized.

In the present embodiment, the slider 71, the first slide groove 72, and the second slide groove 73 are all provided in a dovetail shape. The sliding block 71, the first sliding groove 72 and the second sliding groove 73 are arranged in a dovetail shape, so that the sliding block 71 is not easy to loosen in the first sliding groove 72 and the second sliding groove 73 when sliding in the first sliding groove 72 and the second sliding groove 73 respectively, and the sliding block 71 is more stable in the sliding process.

Referring to fig. 4, a guide rod 8 is fixedly connected to the base 1 along a horizontal direction, the guide rod 8 is cylindrical, specifically, one end of the guide rod 8 is welded to the first mounting seat 101, the other end of the guide rod 8 is welded to the second mounting seat 102, a first guide hole 611 is formed in the first driving seat 61 in a penetrating manner, a second guide hole 621 is formed in the second driving seat 62 in a penetrating manner, the guide rod 8 sequentially penetrates through the first guide hole 611 and the second guide hole 621, the first guide hole 611 is matched with the second guide hole 621 in shape, the side wall of the guide rod 8 respectively slides and abuts against the hole wall of the first guide hole 611 and the hole wall of the second guide hole 621, the first driving seat 61 slides and is connected to the guide rod 8 through the first guide hole 611, and the second driving seat 62 slides and is connected to the guide rod 8 through the second guide hole 621. The guide rod 8 guides the movement of the first driving seat 61 and the second driving seat 62, so that the first driving seat 61 and the second driving seat 62 are more stable in movement.

It should be noted that the number of the guide rods 8 may be multiple, in this embodiment, the number of the guide rods 8 is two, the two guide rods 8 are parallel to each other, and the two guide rods 8 are respectively located at two sides of the bidirectional screw 63.

Referring to fig. 4, the base 1 is welded with the protection cover 9, the protection cover 9 is in a shell shape, the interior of the protection cover 9 is hollow, the driving device 64 (see fig. 2) is located in the hollow interior of the protection cover 9, and the protection cover 9 plays a role of isolating the driving device 64 and preventing the driving device 64 from being damaged by impact. And a plurality of heat dissipation holes 91 are formed through the side wall of the protection cover 9, so that heat dissipated by the driving device 64 in the working process can be discharged through the heat dissipation holes 91.

The implementation principle of the embodiment is as follows: by starting the servo motor 642, the servo motor 642 rotates in the forward direction, the servo motor 642 drives the bidirectional screw 63 to rotate through the speed reducer 641, in the rotating process of the bidirectional screw 63, the first driving seat 61 and the second driving seat 62 are far away from each other, in the process of the first driving seat 61 and the second driving seat 62 being far away from each other, two driving support arms 52 in the first lifting support 21 and two driving support arms 52 in the second lifting support 22 are simultaneously far away from each other, so that the fork shearing frame 2 contracts downwards and the overall height descends, further, the lifting platform 3 drives the advertisement fixing frame 4 to descend to the ground, and the advertisement content can be conveniently replaced by an operator.

After the operator finishes replacing the advertisement content, the servo motor 642 is started again, so that the servo motor 642 rotates in the reverse direction, the bidirectional screw 63 rotates under the action of the servo motor 642, the first driving seat 61 and the second driving seat 62 approach each other, and in the process that the first driving seat 61 and the second driving seat 62 approach each other, the two driving support arms 52 in the first lifting support 21 and the two driving support arms 52 in the second lifting support 22 approach each other at the same time, so that the fork shearing frame 2 extends upwards and is lengthened, the overall height is increased, the lifting platform 3 drives the advertisement fixing frame 4 to lift upwards, and the advertisement fixing frame 4 is restored to the display position.

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. A liftable advertisement structure which is characterized in that: the advertising board comprises a base (1), wherein a fork shearing frame (2) is arranged on the base (1) along the vertical direction, a lifting table (3) is arranged at the top of the fork shearing frame (2) along the horizontal direction, and an advertising fixing frame (4) is arranged on the lifting table (3); the fork shearing frame (2) consists of two groups of mutually parallel first lifting brackets (21) and second lifting brackets (22), the first lifting support (21) and the second lifting support (22) are formed by sequentially hinging a plurality of lifting support arms (5), and the two lifting support arms (5) positioned at the top of the first lifting support (21) and the top of the second lifting support (22) are transmission support arms (51), the two lifting support arms (5) positioned at the bottom of the first lifting support (21) and the bottom of the second lifting support (22) are driving support arms (52), the base (1) is provided with a driving mechanism (6), and the driving mechanism (6) is used for simultaneously driving the two driving support arms (52) in the first lifting support (21) and the two driving support arms (52) in the second lifting support (22) to approach or separate from each other; the bottom of elevating platform (3) with be provided with between transmission support arm (51) subassembly (7) that slides, transmission support arm (51) pass through subassembly (7) that slides slide connect in the bottom of elevating platform (3).

2. A liftable advertisement structure according to claim 1, characterized in that: the driving mechanism (6) comprises a first driving seat (61), a second driving seat (62), a bidirectional screw rod (63) and a driving device (64), one end of the first driving seat (61) is rotatably connected to one of the driving support arms (52) in the first lifting support (21), and one end of the second driving seat (62) is rotatably connected to the other driving support arm (52) in the first lifting support (21); one end of the first driving seat (61), which is far away from the first lifting support (21), is rotatably connected to one of the driving arms (52) in the second lifting support (22), one end of the second driving seat (62), which is far away from the first lifting support (21), is rotatably connected to the other driving arm (52) in the second lifting support (22), and the first driving seat (61) and the second driving seat (62) are parallel to each other; two-way lead screw (63) rotate connect in on base (1), two-way lead screw (63) include that the screw revolves to opposite first screw portion (631) and second screw portion (632), two-way lead screw (63) run through in proper order set up in first drive seat (61) and in second drive seat (62), just first drive seat (61) threaded connection in on first screw portion (631), second drive seat (62) threaded connection in on second screw portion (632), drive arrangement (64) set up in on base (1), drive arrangement (64) are used for the drive two-way lead screw (63) forward rotation and antiport.

3. A liftable advertising structure according to claim 2, characterized in that: the driving device (64) comprises a speed reducer (641) and a servo motor (642), the servo motor (642) and the speed reducer (641) are arranged on the base (1), an output shaft of the servo motor (642) is connected to an input shaft of the speed reducer (641), and an output shaft of the speed reducer (641) is connected with one end of the bidirectional screw rod (63).

4. A liftable advertising structure according to claim 2, characterized in that: the utility model discloses a drive mechanism, including base (1), first drive seat (61), second drive seat (62), guide bar (8), first guide hole (611) is run through to be provided with on base (1) along horizontal direction fixedly connected with guide bar (8), run through on first drive seat (61), run through on second drive seat (62) and be provided with second guide hole (621), guide bar (8) run through in proper order in first guide hole (611) and second guide hole (621), just first drive seat (61) and second drive seat (62) slide respectively connect in on guide bar (8).

5. A liftable advertisement structure according to claim 1, characterized in that: the sliding assembly (7) comprises a sliding block (71), a first sliding groove (72) and a second sliding groove (73), the sliding block (71) is hinged to the transmission support arm (51) of the first lifting support (21) and the transmission support arm (51) of the second lifting support (22) respectively, the first sliding groove (72) and the second sliding groove (73) are arranged at the bottom of the lifting platform (3) along the horizontal direction respectively, the first sliding groove (72) and the second sliding groove (73) are parallel to each other, the sliding block (71) on the first lifting support (21) is connected to the first sliding groove (72) in a sliding mode, and the sliding block (71) on the second lifting support (22) is connected to the second sliding groove (73) in a sliding mode.

6. A liftable advertisement structure according to claim 5, characterized in that: the sliding block (71), the first sliding groove (72) and the second sliding groove (73) are all arranged in a dovetail shape.

7. A liftable advertisement structure according to claim 1, characterized in that: the number of the advertisement fixing frames (4) can be multiple.

8. A liftable advertising structure according to claim 2, characterized in that: be provided with protection casing (9) on base (1), the inside cavity of protection casing (9), drive arrangement (64) are located in protection casing (9).