CN114120767A

CN114120767A - A show stand for marketing teaching

Info

Publication number: CN114120767A
Application number: CN202210025367.3A
Authority: CN
Inventors: 刘琪; 石光; 李冬
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-03-01

Abstract

The invention discloses a display stand for marketing teaching, which comprises three support columns and a motor frame, wherein the upper surfaces of the three support columns are fixedly connected with a support plate, the support plate is provided with a guide groove and is in limited sliding connection with six sliding rods through the guide groove, the upper surfaces of every two sliding rods are fixedly connected with oval gears for sliding a double-sided display board and changing the surface of the double-sided display board, each oval gear is provided with a primary fixing mechanism for primarily fixing the double-sided display board, the diagonal line of the guide groove is provided with three placing grooves, each placing groove is rotationally connected with a rotating rod in a fixed shaft mode, each rotating rod is sleeved with a torsion spring, and each rotating rod is hinged with a guide block for guiding the sliding rod in a sliding mode through the torsion spring. The invention achieves the effects that the display stand can use the double-sided display board through the cooperation of the whole mechanism, the use of the display board is saved, the display board is not easy to replace in teaching, and a large amount of time is saved.

Description

A show stand for marketing teaching

Technical Field

The invention relates to the technical field of marketing teaching, in particular to a display stand for marketing teaching.

Background

Marketing, also known as marketology, marketing or marketing, is a process of marketing and business activities, which is an activity, process and system that brings economic value to customers, clients, partners and the whole society in creating, communicating, spreading and exchanging products. Classical administration courses such as MBA, EMBA, and the like all incorporate marketing as an important module for the management and education of managers.

At present, most marketing teaching show stands can only be provided with a single-side display board, so that the display board is wasted, the display board is easily manually replaced in the teaching process, a large amount of time is wasted, and the problem is solved by the market teaching show stand.

Disclosure of Invention

The invention aims to provide a display stand for marketing teaching, which has the advantages of using a double-sided display board and saving the display board, and solves the problem that a single board is wasted when the single-sided display board is used by the display stand.

In order to achieve the purpose, the invention provides the following technical scheme: a display stand for marketing teaching comprises three support columns and a motor frame, wherein the upper surfaces of the three support columns are fixedly connected with a support plate, the supporting plate is provided with a guide groove and is connected with six sliding rods in a limiting and sliding manner through the guide groove, the upper surfaces of every two sliding rods are fixedly connected with oval gears which are used for sliding the double-sided display board and changing the surface of the double-sided display board, each oval gear is provided with a primary fixing mechanism which is used for primarily fixing the double-sided display board, three placing grooves are arranged on the diagonal line of the guide groove, a rotating rod is rotatably connected on each placing groove in a fixed shaft manner, a torsion spring is sleeved on each rotating rod, each rotating rod is hinged with a guide block for guiding the sliding direction of the sliding rod through the torsion spring, the motor frame is provided with a driving mechanism which is used for sliding the double-sided display board and changing the surface of the double-sided display board.

Preferably, preliminary fixed establishment is including two notch plates of fixed connection at every oval gear's upper surface, every the equal fixedly connected with in spill department of notch plate is used for protecting the side gasbag on two-sided panel side, every the equal fixedly connected with in upper surface of oval gear is used for protecting the end gasbag on two-sided panel base, every equal fixed intercommunication has the gas-supply pipe that is used for gas transmission on two side gasbags on the end gasbag.

Preferably, the driving mechanism comprises a motor fixedly connected to the motor frame, an output end of the motor is fixedly connected to an output shaft penetrating through the support plate and extending out of the support plate, and one end, far away from the motor, of the output shaft is fixedly connected to a flat gear which is meshed with the three elliptic gears.

Preferably, every all be equipped with the secondary fixed establishment that is used for the fixed panel of secondary on the oval gear, secondary fixed establishment is including the bearing block of equal fixed connection on every oval gear, every keep away from the straight piston section of thick bamboo of the equal fixedly connected with in one side of two-sided panel on the bearing block, every equal endwise slip is connected with straight sealing plug, every in the straight piston section of thick bamboo first spring has all been placed, every first spring all with the inner wall of straight piston section of thick bamboo and straight sealing plug fixed connection, every the straight piston rod that the equal fixedly connected with in one end that the bearing block was kept away from to the straight sealing plug runs through straight piston section of thick bamboo, every the equal fixedly connected with cooperation ball of one end that straight sealing plug was kept away from to straight piston rod, the cooperation board that the rear portion fixedly connected with of backup pad and cooperation ball intermittent type offset.

Preferably, the secondary fixing mechanism further comprises an air inlet pipe and an exhaust pipe, the straight piston cylinder is fixedly communicated with the outside through the air inlet pipe, the straight piston cylinder is fixedly communicated with the bottom air bag through the exhaust pipe, and the air inlet pipe and the exhaust pipe are fixedly connected with one-way valves.

Preferably, each side air bag is provided with an exhaust mechanism for cleaning the double-sided display board, the exhaust mechanism comprises four supporting blocks fixedly connected to the inner wall of each side air bag, each side air bag is provided with four circular table holes and is connected with four circular tables in a limiting sliding mode through the four circular table holes, each supporting block is provided with a second spring, one end of each supporting block, close to the corresponding circular table, is fixedly connected with a second spring, and one end of each second spring, far away from the corresponding supporting block, is fixedly connected with the corresponding circular table.

Preferably, be equipped with the maintenance mechanism that is used for scribbling lubricating oil for every oval gear in the backup pad, maintenance mechanism is including arc piston barrel, the backup pad is close to the one end of cooperation board and has seted up the holding tank and pass through holding tank and arc piston barrel fixed connection, axially sliding is connected with the arc sealing plug on the inner wall of arc piston barrel, fixedly connected with runs through the arc piston barrel and extends to the arc piston rod in the standing groove on the arc sealing plug, the arc piston rod is kept away from the one end and the guide block fixed connection of arc sealing plug.

Preferably, maintenance mechanism is still including advancing oil pipe and oil extraction pipe, arc piston cylinder is through advancing the fixed intercommunication of oil pipe and external fuel feeding equipment, the backup pad is close to the one end of cooperation board and has seted up the spout and have the slider through the spacing sliding connection of spout, the one end fixed connection of arc piston rod is kept away from to the bottom and the guide block of slider, the top fixedly connected with of slider is used for scribbling the sponge piece of lubricating oil for three oval gear, arc piston cylinder is through advancing oil pipe and the fixed intercommunication of sponge piece, all with check valve fixed connection on advancing oil pipe and the oil extraction pipe.

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

1. the invention achieves the effects that the display stand can use the double-sided display board through the cooperation of the whole mechanism, the use of the display board is saved, the display board is not easy to replace in teaching, and a large amount of time is saved.

2. According to the double-sided display board fixing device, the primary fixing mechanism is arranged, so that the side air bags and the bottom air bags can be used for primarily fixing the double-sided display board when the double-sided display board is installed, and the double-sided display board is prevented from being damaged.

3. By arranging the secondary fixing mechanism, the invention achieves the aim of continuously supplementing air to the side air bag and the bottom air bag when the double-sided display board is displayed on the display stand, realizes the secondary fixing of the double-sided display board and further ensures the effect of protecting the double-sided display board.

4. According to the invention, through the arrangement of the exhaust mechanism, when the gas in the bottom air bag and the side air bag exceeds the saturation value of the respective air bags, the gas is blown out from one end of the circular truncated cone, which is far away from the second spring, along the direction of the circular truncated cone hole, so that the redundant gas is exhausted through the circular truncated cone hole and blown onto the double-sided display board, and the effect of cleaning the double-sided display board is further achieved.

5. By arranging the maintenance mechanism, the invention achieves the effect that when the elliptic gear slides to one side of the matching plate, the sponge block uniformly coats the lubricating oil supplied by the arc-shaped piston cylinder on the elliptic gear, thereby greatly prolonging the service life of the elliptic gear and the flat gear.

Drawings

FIG. 1 is a first schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a second schematic view of the overall structure of the present invention;

FIG. 5 is a schematic cross-sectional view of the overall structure of the present invention during a reversal;

FIG. 6 is a schematic view of the maintenance mechanism of the present invention;

FIG. 7 is a schematic structural view of the driving mechanism of the present invention;

FIG. 8 is a schematic structural view of the secondary fastening mechanism of the present invention;

FIG. 9 is a schematic view of the primary securing mechanism of the present invention;

FIG. 10 is a schematic cross-sectional view of the secondary fastening mechanism of the present invention;

fig. 11 is a schematic structural view of the exhaust mechanism of the present invention.

In the figure: 1. a support plate; 11. a support pillar; 12. a guide groove; 13. a placement groove; 14. a mating plate; 2. a motor; 21. a motor frame; 22. an output shaft; 23. a flat gear; 3. an elliptical gear; 31. a concave plate; 32. a slide bar; 33. a bearing block; 4. a side airbag; 41. a support block; 42. a circular truncated cone; 43. a second spring; 5. a bottom airbag; 51. an exhaust pipe; 52. a one-way valve; 53. a gas delivery pipe; 6. a straight piston cylinder; 61. a straight piston rod; 62. matching the balls; 63. a straight sealing plug; 64. a first spring; 65. an air inlet pipe; 7. a guide block; 71. rotating the rod; 72. a torsion spring; 73. a slider; 74. a sponge block; 8. an arc-shaped piston cylinder; 81. an arc-shaped piston rod; 82. an arc-shaped sealing plug; 83. an oil inlet pipe; 84. an oil discharge pipe.

Detailed Description

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

Example one

The invention provides a technical scheme that: the utility model provides a show stand for marketing teaching, including three support column 11 and motor frame 21, the last fixed surface of three support column 11 is connected with backup pad 1, seted up guiding groove 12 on the backup pad 1 and have six slide bars 32 through the spacing sliding connection of guiding groove 12, the equal fixedly connected with in upper surface of per two slide bars 32 is used for two-sided panel to slide and conveniently watches the oval gear 3 of two-sided panel, all be equipped with the preliminary fixed establishment who is used for preliminary fixed two-sided panel on every oval gear 3, three standing groove 13 has been seted up on the diagonal of guiding groove 12, it is connected with dwang 71 all to decide the axle rotation on every standing groove 13, torsional spring 72 has all been cup jointed on every dwang 71, it has the guide block 7 that is used for sliding to the guide to slide bar 32 through torsional spring 72 articulated on every dwang 71, be equipped with on the motor frame 21 and be used for two-sided panel to slide and trade the actuating mechanism of face to two-sided panel.

Referring to fig. 1, 2, 4 and 5, the supporting effect of the supporting plate 1 is achieved by arranging three supporting columns 11, the supporting effect of the whole equipment is achieved by arranging the supporting plate 1, the guiding groove 12 is a triangular and circular mixing groove, for the B surface of the BE double-sided display board to BE displayed on the next block faces to the flat gear 23, as the flat gear 23 is engaged with three elliptical gears 3, referring to fig. 2, the sliding rod 32 slides in the guiding groove 12, when the sliding rod 32 at the front end of the elliptical gear 3 slides to BE abutted against the front end of the guiding block 7, the guiding block 7 rotates by taking the rotating rod 71 as the center of a circle, fig. 5, the front end of the guiding block 7 rotates into the placing groove 13, and the rear end of the guiding block 7 is matched with the circular part of the guiding groove 12 to form a sealed circular slideway, so that the sliding rod 32 at the front end of the elliptical gear 3 rotates at the diagonal, and the sliding rod 32 at the rear end of the oval gear 3 slides at the sealed circular slideway matched with the circular part of the guide groove 12 part along the rear end of the guide block 7 until the sliding rod 32 sliding out of the rear end of the oval gear 3 slides out of the circular part of the guide groove 12, and then the sliding rod 32 abutting against the front end of the guide block 7 is stopped to abut against, so that the elasticity of the torsion spring 72 is released, and the guide block 7 is reset.

Further, preliminary fixed establishment is including two notch plates 31 of fixed connection at every oval gear 3's upper surface, and the equal fixedly connected with in spill department of every notch plate 31 is used for protecting the side gasbag 4 of two-sided panel side, and the equal fixedly connected with in upper surface of every oval gear 3 is used for protecting the end gasbag 5 on two-sided panel base, and equal fixed intercommunication has the gas-supply pipe 53 that is used for to gas-supply on two side gasbags 4 on every end gasbag 5.

Referring to fig. 1, 4, 8 and 9, the double-sided display board is inserted along the concave part of each concave plate 31 until contacting the bottom air bag 5 when in use by arranging the side air bags 4 and the bottom air bag 5, and then the double-sided display board is inserted continuously, referring to fig. 9, so that the air is conveyed to the two side air bags 4 through the air conveying pipes 53 in the bottom air bag 5, the side edges of the double-sided display board are preliminarily fixed, and the double-sided display board is prevented from being damaged due to sliding after being inserted.

Further, actuating mechanism is including fixed connection motor 2 on motor frame 21, and motor 2's output fixedly connected with runs through backup pad 1 and extends to the outer output shaft 22 of backup pad 1, and output shaft 22 keeps away from one of motor 2 and serves fixedly connected with and the equal joggled spur gear 23 of three elliptic gear 3.

Referring to fig. 1 and 7, the output shaft 22 is rotated by the motor 2, so that the flat gear 23 on the output shaft 22 rotates, and the flat gear 23 is engaged with the three elliptic gears 3 and is in limited sliding connection with the sliding rod 32 fixedly connected with each elliptic gear 3 in the guide groove 12 formed in the support plate 1, so that the double-sided mounting plate on the elliptic gear 3 can slide and can change the surface of the double-sided display plate.

Further, all be equipped with the secondary fixed establishment that is used for the fixed panel of secondary on every oval gear 3, secondary fixed establishment is including the bearing block 33 of equal fixed connection on every oval gear 3, keep away from the straight piston section of thick bamboo 6 of the equal fixedly connected with in one side of two-sided panel on every bearing block 33, equal axial sliding connection has straight sealing plug 63 on the inner wall of every straight piston section of thick bamboo 6, first spring 64 has all been placed in every straight piston section of thick bamboo 6, every first spring 64 all with the inner wall of straight piston section of thick bamboo 6 and straight sealing plug 63 fixed connection, the equal fixedly connected with of one end that bearing block 33 was kept away from to every straight sealing plug 63 runs through the straight piston rod 61 of straight piston section of thick bamboo 6, the equal fixedly connected with cooperation ball 62 of one end that straight sealing plug 63 was kept away from to every straight piston rod 61, the cooperation board 14 that the rear portion fixedly connected with of backup pad 1 and cooperation ball 62 intermittent type offset.

Referring to fig. 1, 8, 9 and 10, the double-sided display board after the display is completed slides towards the direction of the matching board 14 along the direction of the guide groove 12 until the matching ball 62 on the straight piston rod 61 abuts against the matching board 14, and by arranging the matching ball 62, when the straight piston rod 61 abuts against the matching board 14, the friction force is reduced through the matching ball 62, so that the effect of easier matching is achieved, and therefore, the straight piston rod 61 is matched with the straight sealing plug 63 to slide towards the direction of the bearing block 33 along the straight piston cylinder 6, and when the straight piston rod is not abutted against the straight sealing plug 63, the elastic force of the first spring 64 is released, so that the straight piston rod 61 is matched with the straight sealing plug 63 to slide towards the direction away from the bearing block 33 along the straight piston cylinder 6, and therefore, the effect of reciprocating sliding of the straight piston rod 61 and the straight sealing plug 63 in the straight piston cylinder 6 is formed, and further, the pressure in the straight piston cylinder 6 is repeatedly changed.

Further, the secondary fixing mechanism further comprises an air inlet pipe 65 and an air outlet pipe 51, the straight piston cylinder 6 is fixedly communicated with the outside through the air inlet pipe 65, the straight piston cylinder 6 is fixedly communicated with the bottom air bag 5 through the air outlet pipe 51, and the air inlet pipe 65 and the air outlet pipe 51 are both fixedly connected with one-way valves 52.

Referring to fig. 8, 9 and 10, when the straight piston rod 61 and the straight sealing plug 63 slide in the straight piston cylinder 6 in the direction away from the bearing block 33, a negative pressure is generated in cooperation with the check valve 52, so that the outside air is sucked into the straight piston cylinder 6 through the air inlet pipe 65, when the straight piston rod 61 and the straight sealing plug 63 slide in the straight piston cylinder 6 in the direction of the bearing block 33, a high pressure is generated in cooperation with the check valve 52, so that the air in the straight piston cylinder 6 is sent into the bottom air bag 5 through the air outlet pipe 51, because the air pipes 53 for conveying air to the two side air bags 4 are fixedly communicated with the bottom air bag 5, the air can also supplement the side air bags 4 while supplementing the bottom air bag 5, and the effect of secondarily fixing the double-sided display panel is achieved, so that the double-sided display panel cannot slide and be damaged when being displayed.

Further, all be equipped with the exhaust mechanism who is used for cleaning two-sided panel on every side gasbag 4, exhaust mechanism is including four supporting shoes 41 of fixed connection on 4 inner walls of every side gasbag, all seted up four round platform holes and have four round platforms 42 through four round platform hole limit sliding connection on every side gasbag 4, the equal fixedly connected with second spring 43 of one end that is close to round platform 42 on every supporting shoe 41, the one end that supporting shoe 41 was kept away from to every second spring 43 all with round platform 42 fixed connection.

Referring to fig. 11, when the bottom airbag 5 and the side airbag 4 are supplemented with gas, and the gas in the bottom airbag exceeds the saturation value of each airbag, the gas is blown out through the circular truncated cone 42 along the end of the circular truncated cone hole far away from the second spring 43, so that the redundant gas is discharged through the circular truncated cone hole and blown onto the double-sided display board, and the effect of cleaning the double-sided display board is also achieved.

Referring to fig. 1 and 4, the matching plate 14 is fixedly connected to the rear portion of the supporting plate 1, so that supplementary air and cleaning can be performed only on the rear portion of the supporting plate 1 on each oval gear 3, and the display effect of the double-sided panel in the display direction cannot be influenced.

Example two

The same as the first embodiment, further, be equipped with the maintenance mechanism that is used for scribbling lubricating oil for every elliptic gear 3 in backup pad 1, maintenance mechanism is including arc piston tube 8, backup pad 1 is close to the one end of cooperation board 14 and has seted up the holding tank and pass through holding tank and arc piston tube 8 fixed connection, axial sliding connection has arc sealing plug 82 on the inner wall of arc piston tube 8, fixedly connected with runs through arc piston tube 8 on the arc sealing plug 82 and extends to the arc piston rod 81 in the standing groove 13, arc piston rod 81 keeps away from the one end and the guide block 7 fixed connection of arc sealing plug 82.

Referring to fig. 3 and 6, when the sliding rod 32 at the front end of the elliptic gear 3 slides to the place where the front end of the guide block 7 rotates to the place 13 by using the rotating rod 71 as the center of a circle when the front end of the guide block 7 abuts against the front end of the guide block 7, the arc piston rod 81 is matched with the arc sealing plug 82 to slide along the arc piston cylinder 8 towards the oil discharge pipe 84, after the abutting against guide block 7 is finished and reset, the arc piston rod 81 is matched with the arc sealing plug 82 to slide along the arc piston cylinder 8 towards the direction away from the oil discharge pipe 84, so that the effect of reciprocating sliding of the arc piston rod 81 and the arc sealing plug 82 in the arc piston cylinder 8 is formed, and further, the pressure in the arc piston cylinder 8 changes repeatedly.

Further, the maintenance mechanism is still including advancing oil pipe 83 and oil extraction pipe 84, arc piston cylinder 8 is through advancing the fixed intercommunication of oil pipe 83 with external fuel feeding equipment, the one end that backup pad 1 is close to cooperation board 14 has seted up the spout and has slider 73 through the spacing sliding connection of spout, the one end fixed connection that arc piston rod 81 was kept away from to slider 73's bottom and guide block 7, the top fixedly connected with of slider 73 is used for smearing the sponge piece 74 of lubricating oil for three oval gear 3, arc piston cylinder 8 is through arranging oil pipe 84 and the fixed intercommunication of sponge piece 74, all with check valve 52 fixed connection on advancing oil pipe 83 and the oil extraction pipe 84.

Referring to fig. 3 and 6, when the arc piston rod 81 is matched with the arc sealing plug 82 to slide along the arc piston cylinder 8 towards the oil discharge pipe 84, under the matching of the check valve 52, high pressure is generated, so that the lubricating oil in the arc piston cylinder 8 is fed into the sponge block 74 through the oil discharge pipe 84, when the arc piston rod 81 is matched with the arc sealing plug 82 to slide along the arc piston cylinder 8 towards the direction far from the oil discharge pipe 84, under the matching of the check valve 52, negative pressure is generated, so that the lubricating oil of the external oil supply equipment is sucked into the arc piston cylinder 8 through the oil inlet pipe 83, because the bottom of the sliding block 73 is fixedly connected with one end of the guide block 7 far from the arc piston rod 81, when the sliding rod 32 at the front end of the oval gear 3 slides to abut against the front end of the guide block 7, the front end of the guide block 7 rotates into the placing groove 13 around the rotating rod 71 as the center of the circle, and the rear end of the guide block 7 rotates out of the guide groove 12, thereby slider 73 and sponge piece 74 follow the rear end of guide block 7 and slide simultaneously for sponge piece 74 contacts with the tooth of oval gear 3 at this moment, will be evenly scribbled on oval gear 3 by the lubricating oil that arc piston cylinder 8 supplied, and because oval gear 3 and spur gear 23 meshing for the effect to oval gear 3 and spur gear 23 maintenance simultaneously has improved oval gear 3 and spur gear 23's life.

The working principle is as follows: this a show stand for marketing teaching, during the use, inserts two-sided panel along every notch plate 31's spill department, and gasbag 5 on the earth contacts, continues to insert afterwards, refers to figure 9 for through gas-supply pipe 53 with gas transmission to two side airbags 4 in the gasbag 5 on the earth, thereby tentatively fix the side of two-sided panel, thereby avoid two-sided panel to damage because the landing after inserting.

The motor 2 is started, the output shaft 22 rotates to enable the flat gear 23 on the output shaft 22 to rotate, and the flat gear 23 is meshed with the three elliptic gears 3, and the sliding rod 32 fixedly connected with each elliptic gear 3 is in limited sliding connection in the guide groove 12 formed in the support plate 1, so that the double-sided mounting plate on the elliptic gear 3 can slide and can change the surface of the double-sided mounting plate at the same time.

The aforementioned guide slot 12 is a triangular and circular mixing slot, two sides of each of the three double-sided boards are respectively an AD double-sided board, a BE double-sided board and a CF double-sided board, referring to fig. 1, when showing a side of the AD double-sided board, the side B of the next BE shown BE double-sided board faces the direction of the flat gear 23, since the flat gear 23 is engaged with three elliptic gears 3, referring to fig. 2, the sliding rod 32 slides in the guide slot 12, when the sliding rod 32 at the front end of the elliptic gear 3 slides to abut against the front end of the guide block 7, the guide block 7 rotates around the rotating rod 71, referring to fig. 5, the front end of the guide block 7 rotates into the placing slot 13, and the rear end of the guide block 7 is matched with the circular part of the guide slot 12 to form a sealed circular slideway, so that the sliding rod 32 at the front end of the elliptic gear 3 rotates at the diagonal line, and the sliding rod 32 at the rear end of the oval gear 3 slides at the sealed circular slideway matched with the circular part of the guide groove 12 along the rear end of the guide block 7 until the sliding rod 32 at the rear end of the oval gear 3 slides out of the circular part of the guide groove 12, then the sliding rod 32 abutting against the front end of the guide block 7 finishes abutting, the elasticity of the torsion spring 72 is released, so that the guide block 7 resets, at this time, referring to fig. 4, the AD double-sided display board slides to the side, the BE double-sided display board slides to the front, and the B face faces the display direction, so reciprocating, when the CF double-sided display board slides to the front, and the C face faces the display direction, at this time, the D face of the AD double-sided display board faces the flat gear 23, so that after the C face of the CF board is displayed, the D face of the AD double-sided display board faces the display direction, so that A, B, C faces of the three double-sided display boards are displayed in sequence, and then D, E, F surfaces are displayed next to each other, so that six surfaces of three double-sided display boards can be sequentially displayed, the space of the display stand is saved, and the use of the display boards is reduced.

In the sliding of the three double-sided display boards, the double-sided display boards after being displayed slide towards the direction of the matching board 14 along the direction of the guide groove 12 until the matching ball 62 on the straight piston rod 61 abuts against the matching board 14, and the matching ball 62 is arranged to reduce friction force through the matching ball 62 when the straight piston rod 61 abuts against the matching board 14, so that an effect of easier matching is achieved, and therefore the straight piston rod 61 is matched with the straight sealing plug 63 to slide towards the direction of the bearing block 33 along the straight piston cylinder 6, and when the straight piston rod is not abutted against the straight piston cylinder 6, the elastic force of the first spring sealing plug 64 is released, so that the straight piston rod 61 is matched with the straight sealing plug 63 to slide towards the direction away from the bearing block 33 along the straight piston cylinder 6, and therefore the effect of the straight piston rod 61 and the straight sealing plug 63 sliding back and forth in the straight piston cylinder 6 is formed, and further the pressure in the straight piston cylinder 6 is repeatedly changed, which is described in detail as follows:

in the above, when the straight piston rod 61 and the straight sealing plug 63 slide in the straight piston cylinder 6 in the direction away from the bearing block 33, under the cooperation of the check valve 52, negative pressure is generated, so that outside gas is sucked into the straight piston cylinder 6 through the air inlet pipe 65, when the straight piston rod 61 and the straight sealing plug 63 slide in the straight piston cylinder 6 in the direction of the bearing block 33, under the cooperation of the check valve 52, high pressure is generated, so that the gas in the straight piston cylinder 6 is sent into the bottom airbag 5 through the air outlet pipe 51, because the air pipes 53 for conveying gas to the two side airbags 4 are fixedly communicated on the bottom airbag 5, the gas can be supplemented to the side airbags 4 simultaneously while the bottom airbag 5 is supplemented, the effect of secondary fixation of the double-sided display board is achieved, and the double-sided display board cannot slide and be damaged when being displayed.

When the bottom airbag 5 and the side airbag 4 are supplemented with gas, when the gas in the bottom airbag exceeds the saturation value of each airbag, the gas is blown out through the circular truncated cone 42 along the end, far away from the second spring 43, of the circular truncated cone hole, so that redundant gas is discharged through the circular truncated cone hole and blown onto the double-sided display board, and the effect of cleaning the double-sided display board is achieved.

And through setting up cooperation board 14 fixed connection in the rear portion of backup pad 1 for only can carry out make-up gas and clean at the rear portion of backup pad 1 on every oval gear 3, can not influence the bandwagon effect of the two-sided panel of show direction.

Slide bar 32 at oval gear 3 front end slides to when propping up with guide block 7 front end and guide block 7's front end uses dwang 71 to take place to rotate to standing groove 13 in as the centre of a circle when the centre of a circle takes place to rotate, arc piston rod 81 cooperation arc sealing plug 82 slides to arranging oil pipe 84 direction along arc piston barrel 8, after ending to prop up guide block 7 and reset, arc piston rod 81 cooperation arc sealing plug 82 slides to keeping away from oil pipe 84 direction along arc piston barrel 8 to form arc piston rod 81 cooperation arc sealing plug 82 reciprocating sliding's effect in arc piston barrel 8, and then make in arc piston barrel 8 pressure change repeatedly, the detailed description is as follows:

in the above, when the arc piston rod 81 is engaged with the arc sealing plug 82 to slide along the arc piston cylinder 8 toward the oil discharge pipe 84, under the engagement of the check valve 52, high pressure is generated, so that the lubricating oil in the arc piston cylinder 8 is fed into the sponge block 74 through the oil discharge pipe 84, when the arc piston rod 81 is engaged with the arc sealing plug 82 to slide along the arc piston cylinder 8 toward the direction away from the oil discharge pipe 84, under the engagement of the check valve 52, negative pressure is generated, so that the lubricating oil of the external oil supply equipment is sucked into the arc piston cylinder 8 through the oil inlet pipe 83, because the bottom of the sliding block 73 is fixedly connected with the end of the guiding block 7 away from the arc piston rod 81, when the sliding rod 32 at the front end of the elliptic gear 3 slides to abut against the front end of the guiding block 7, the front end of the guiding block 7 rotates into the placing groove 13 around the rotating rod 71, and the rear end of the guiding block 7 rotates out of the guiding groove 12, thereby slider 73 and sponge piece 74 follow the rear end of guide block 7 and slide simultaneously for sponge piece 74 contacts with the tooth of oval gear 3 at this moment, will be evenly scribbled on oval gear 3 by the lubricating oil that arc piston cylinder 8 supplied, and because oval gear 3 and spur gear 23 meshing for the effect to oval gear 3 and spur gear 23 maintenance simultaneously has improved oval gear 3 and spur gear 23's life.

The maintenance mechanism is arranged on one side, located on the matching board 14, of the supporting board 1, so that the maintenance mechanism can only maintain the elliptic gear 3 at the rear portion of the supporting board 1, and the display effect of the double-sided panel in the display direction cannot be influenced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a show stand for marketing teaching, includes three support column (11) and motor frame (21), its characterized in that: the upper surface of the three supporting columns (11) is fixedly connected with a supporting plate (1), the supporting plate (1) is provided with a guide groove (12) and is connected with six sliding rods (32) through the guide groove (12) in a limiting sliding manner, every two sliding rods (32) are fixedly connected with oval gears (3) which are used for sliding of double-sided display boards and changing the surfaces of the double-sided display boards, each oval gear (3) is provided with a preliminary fixing mechanism for preliminarily fixing the double-sided display boards, the diagonal line of the guide groove (12) is provided with three placing grooves (13), each placing groove (13) is rotatably connected with a rotating rod (71) in a fixed shaft manner, each rotating rod (71) is sleeved with a torsion spring (72), and each rotating rod (71) is hinged with a guide block (7) for guiding the sliding direction of the sliding rods (32) through the torsion spring (72), the motor frame (21) is provided with a driving mechanism which is used for sliding the double-sided display board and changing the surface of the double-sided display board.

2. A display stand for marketing teaching according to claim 1, wherein: preliminary fixed establishment is including two notch plate (31) of fixed connection at the upper surface of every oval gear (3), every the equal fixedly connected with in spill department of notch plate (31) is used for protecting side gasbag (4) on two-sided panel side, every the equal fixedly connected with in upper surface of oval gear (3) is used for protecting end gasbag (5) on two-sided panel base, every equal fixed intercommunication has gas transmission pipe (53) that are used for going up gas transmission to two side gasbag (4) on end gasbag (5).

3. A display stand for marketing teaching according to claim 1, wherein: the driving mechanism comprises a motor (2) fixedly connected to a motor frame (21), an output end of the motor (2) is fixedly connected with an output shaft (22) penetrating through a supporting plate (1) and extending to the outside of the supporting plate (1), and one end, away from the motor (2), of the output shaft (22) is fixedly connected with a flat gear (23) which is evenly meshed with three elliptic gears (3).

4. A display stand for marketing teaching according to claim 1, wherein: each oval gear (3) is provided with a secondary fixing mechanism for fixing a display board for the secondary, each secondary fixing mechanism comprises a bearing block (33) fixedly connected to each oval gear (3), one side of each bearing block (33) far away from the double-sided display board is fixedly connected with a straight piston cylinder (6), the inner wall of each straight piston cylinder (6) is axially and slidably connected with a straight sealing plug (63), a first spring (64) is placed in each straight piston cylinder (6), each first spring (64) is fixedly connected with the inner wall of each straight piston cylinder (6) and the straight sealing plug (63), one end of each straight sealing plug (63) far away from the bearing block (33) is fixedly connected with a straight piston rod (61) penetrating through the straight piston cylinder (6), and one end of each straight piston rod (61) far away from the straight sealing plug (63) is fixedly connected with a matching ball (62), the rear part of the support plate (1) is fixedly connected with a matching plate (14) which intermittently offsets with the matching ball (62).

5. A display stand for marketing teaching according to claim 4, wherein: the secondary fixing mechanism further comprises an air inlet pipe (65) and an exhaust pipe (51), the straight piston cylinder (6) is fixedly communicated with the outside through the air inlet pipe (65), the straight piston cylinder (6) is fixedly communicated with the bottom air bag (5) through the exhaust pipe (51), and the air inlet pipe (65) and the exhaust pipe (51) are both fixedly connected with one-way valves (52).

6. A display stand for marketing teaching according to claim 2, wherein: every all be equipped with the exhaust mechanism who is used for clean two-sided panel on side gasbag (4), exhaust mechanism is including four supporting shoe (41) of fixed connection on every side gasbag (4) inner wall, every four round platform holes have all been seted up on side gasbag (4) and have four round platforms (42) through four round platform hole limit sliding connection, every the equal fixedly connected with second spring (43) of one end that is close to round platform (42) on supporting shoe (41), every the one end that supporting shoe (41) were kept away from in second spring (43) all with round platform (42) fixed connection.

7. A display stand for marketing teaching according to claim 4, wherein: be equipped with on backup pad (1) and be used for scribbling the maintenance mechanism of lubricating oil for every oval gear (3), maintenance mechanism is including arc piston cylinder (8), backup pad (1) is close to the one end of cooperation board (14) and has seted up the holding tank and pass through holding tank and arc piston cylinder (8) fixed connection, axially sliding connection has arc sealing plug (82) on the inner wall of arc piston cylinder (8), fixedly connected with runs through arc piston cylinder (8) and extends to arc piston rod (81) in standing groove (13) on arc sealing plug (82), arc piston rod (81) keep away from the one end and guide block (7) fixed connection of arc sealing plug (82).

8. A display stand for marketing teaching as claimed in claim 7, wherein: maintenance mechanism is still including advancing oil pipe (83) and oil extraction pipe (84), arc piston cylinder (8) are through advancing oil pipe (83) and external fixed intercommunication of fuel feeding equipment, backup pad (1) are close to the one end of cooperation board (14) and have seted up the spout and have slider (73) through the spacing sliding connection of spout, the one end fixed connection of arc piston rod (81) is kept away from with guide block (7) in the bottom of slider (73), the top fixedly connected with of slider (73) is used for smearing sponge piece (74) of lubricating oil for three oval gear (3), arc piston cylinder (8) are through arranging oil pipe (84) and sponge piece (74) fixed intercommunication, advance oil pipe (83) and arrange oil pipe (84) on all with check valve (52) fixed connection.