CN114596781A - Historical spatial pattern evolution display device based on GIS and use method thereof - Google Patents
Historical spatial pattern evolution display device based on GIS and use method thereof Download PDFInfo
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- 230000001276 controlling effect Effects 0.000 description 10
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- 230000004308 accommodation Effects 0.000 description 2
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
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Abstract
The invention discloses a historical space pattern evolution display device based on a GIS (geographic information system) and a using method thereof. The evolvable display screen can be rapidly moved out of the interior of the bearing seat platform through the arranged display structure, so that the evolvable display screen is convenient to display, has certain safety performance compared with the traditional display device, can effectively prevent unstable factors in the external environment from causing impact damage, and improves the protection performance of the device.
Description
Technical Field
The invention relates to the technical field of display devices, in particular to a historical spatial pattern evolution display device based on a GIS and a using method thereof.
Background
The regional economy of China is continuously developed in practice, and the regional development thinking gradually changes from unbalanced development to coordinated development.
The evolution of the spatial pattern is a further description of economic objects or economic elements existing in the development space of the region, and refers to the position relationship of the social and economic objects in the space, the spatial aggregation degree and the aggregation form formed by the interaction of the social and economic objects, and the direction and the strength of the interaction of the social and economic objects through the linear infrastructure.
Geodatabase is a novel object-oriented spatial data model which is introduced in ArcGIS software by ESRI company in America, and adopts an object-oriented technology to abstract the real world into a data model consisting of a plurality of object classes, wherein each object class has respective attribute, behavior and rule, and certain relation exists between the object classes. The user can establish an extension model meeting the requirements of the user on the basis of the existing spatial data model, and the extension model has an extension function.
The method comprises the steps of establishing a scientific and feasible historical space construction pattern digital restoration method system by utilizing technologies such as GIS and the like, reproducing and analyzing historical space patterns in different historical periods, establishing a historical space pattern set with uniform spatial scale, uniform spatial reference and uniform spatial classification, and finally establishing a historical space pattern evolution database and a historical space pattern evolution geographic information system, so as to provide an analysis basis for historical cultural heritage protection in city planning and management and provide a decision basis for building cities with characteristic culture.
The traditional device historical space pattern evolution display device has the following disadvantages in use: 1. most of the devices adopt a single display for display evolution, and the devices are easily damaged by the impact of the external environment, so that the service life is influenced; 2. the manual carrying mode is mostly adopted during moving, and the unstable factors are extremely large, so that certain influence is caused on the device.
Disclosure of Invention
The invention aims to provide a historical spatial pattern evolution display device based on a GIS and a using method thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a historical space pattern evolution display device based on a GIS comprises a bearing seat platform used for placing an evolution display screen, wherein the evolution display screen based on the GIS and used for evolving and displaying the historical space pattern is arranged on one side of the bearing seat platform, the bottom end face of the evolution display screen is connected with a sealing structure, a display structure used for evolving and displaying the evolution display screen is arranged below the sealing structure, the display structure is arranged inside the bearing seat platform, a mobile positioning structure is arranged at the bottom end of the bearing seat platform, moving wheels used for transferring are arranged around the bottom end of the bearing seat platform, and an operating panel used for controlling is arranged on the upper end face of the bearing seat platform;
the display structure comprises an inner cavity arranged on one side inside the bearing seat stand, a motor serving as a power output end is arranged on one side of the inner cavity, the output end of the motor is fixedly connected with the input end of a screw rod, one end, far away from the motor, of the screw rod is connected with a connecting plate, and the top end of the connecting plate is connected with the sealing structure.
Preferably, one side of the connecting plate is provided with a screw hole, and the screw hole is connected with the screw in a matching manner.
Preferably, one side of the connecting plate, which is far away from the screw hole, is provided with a limiting hole, the inside of the limiting hole is connected with a limiting rod in a sliding manner, the limiting rod is arranged inside the limiting groove, and the limiting groove is arranged on one side of the inner cavity and used for linear movement of the connecting plate.
Preferably, the sealing structure includes the linking seat that sets up in evolution show screen below, the bottom of linking seat is connected with the backing plate, N group's sealed chamber has been seted up around the backing plate, the inside sliding connection in sealed chamber has the pillar pole, one side of pillar pole is connected with the air cushion, the sealing plug has been cup jointed to one side of pillar pole for the inside air in removal extrusion sealed chamber.
Preferably, a channel is formed in one side of the bearing seat stand and used for moving the evolution display screen up and down.
Preferably, the base plate is of a vertically symmetrical structure, wherein N is an even number greater than or equal to 8.
Preferably, the mobile positioning structure comprises an air pump arranged at the bottom end inside the bearing seat stand, the output end of the air pump is connected with two groups of connecting rods, one side of each connecting rod is connected with a first rack rod, the first rack rod is inserted into the first axle box, and the first axle box is rotatably connected with a connecting gear.
Preferably, one side of the two groups of connecting rods is respectively connected with a first rack rod, and the two groups of connecting rods are connected through the first rack rods.
Preferably, the inside of connecting gear rotates and is connected with the gear shaft, the both sides of gear shaft all are connected with the secondary shaft case, one side internal connection of secondary shaft case has the second rack bar, the bottom of second rack bar is connected with the supporting legs.
A use method of a historical spatial pattern evolution display device based on a GIS comprises the following steps:
controlling a motor to drive a screw rod to rotate, wherein the screw rod is matched with a screw hole of a connecting plate, so that the connecting plate moves to the surface of a bearing seat table from an inner cavity through a channel, and a evolution display screen is driven to display an evolution process of a historical spatial pattern on the upper surface of the bearing seat table based on a GIS;
step (B), in the upward movement process of the evolution display screen, driving a bottom cushion plate at the bottom end of the connecting seat to move into the channel, extruding an air cushion by the inner wall of the channel, driving a sealing plug at one side of a support rod to extrude air in the sealing cavity by the aid of the forced air cushion to generate air pressure, reversely acting on the bottom end of the air cushion to drive the bottom end of the air cushion to generate elastic deformation, extruding and attaching the bottom end of the air cushion to the inner wall of the channel, and sealing the connecting seat;
step (C), during moving positioning, controlling the air pump to operate to drive the second rack bar on one side of the connecting rod to extend out, meshing the second rack bar with the connecting gear, connecting the gear shaft, and driving the second rack bars in the second shaft boxes on two sides of the gear shaft to mesh with the gear shaft, so as to achieve the purpose of moving up and down, thereby controlling the supporting legs to contract and extend at the bottom end of the bearing base platform;
step (D), when the bearing seat platform moves, the supporting legs are controlled to extend out, so that the supporting legs are extruded to the ground surface, the bearing seat platform is supported, and the positioning work is finished; otherwise, the connecting device contracts to ensure that the connecting device loses the connecting function with the ground, pushes and pulls the bearing seat stand, and moves through the movable wheels;
and (E) after the use is finished, controlling the motor to rotate reversely to drive the evolution display screen to move towards the inner cavity and store the evolution display screen in the bearing seat, so that the bearing seat is changed into a similar cube, and the protection and storage of the evolution display screen are completed.
Compared with the prior art, the invention has the beneficial effects that:
1. the evolvable display screen can be rapidly moved out of the interior of the bearing seat platform through the arranged display structure, so that the evolvable display screen is convenient to display, has certain safety performance compared with the traditional display device, can effectively prevent unstable factors in the external environment from causing impact damage, and improves the protection performance of the device.
2. According to the invention, through the arranged mobile positioning structure, the position of the device can be flexibly adjusted according to the use requirement, the device is convenient to use, and meanwhile, the device can be rapidly regulated at a specified position, so that the device is prevented from being shifted in position due to the slippage of the mobile wheel, and the display effect is influenced.
3. According to the invention, the internal space of the bearing base is separated from the external environment through the arranged sealing structure, so that external liquid water and dust lamps are prevented from entering the inner cavity of the bearing base through the passage, the evolution display screen is prevented from being damaged by the accommodation environment of the evolution display screen, and the tidiness of the storage environment is improved.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a base plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a gear shaft according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a mobile positioning structure according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an adapter according to an embodiment of the invention.
In the figure: 1. a receiving seat stand; 2. an evolution display screen; 201. a linking seat; 202. a bottom bolster plate; 203. an air cushion; 204. sealing the cavity; 205. a strut rod; 206. a sealing plug; 3. an operation panel; 4. supporting legs; 5. a channel; 6. a motor; 601. a screw; 602. a connecting plate; 603. a screw hole; 604. a limiting hole; 605. a limiting rod; 606. an inner cavity; 607. a limiting groove; 7. an air pump; 701. a connecting rod; 702. a first rack bar; 703. a first axle box; 704. a connecting gear; 705. a second rack bar; 706. a gear shaft; 707. a second shaft box; 8. the wheel is moved.
Detailed Description
In order to solve the problems that most of the existing devices adopt independent displays to display evolution, the devices are easily damaged by the impact of the external environment, the service life is influenced, most of the devices adopt a manual carrying mode during movement, the devices are greatly affected by unstable factors, and a certain influence is caused on the devices, the invention provides a historical space pattern evolution display device based on a GIS and a use method thereof. The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described invention is only a part of the invention, not the whole invention. All other inventions obtained by a person of ordinary skill in the art based on the inventions of the present invention without any creative efforts shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the invention provides a historical space pattern evolution display device based on a GIS, which comprises a bearing seat stand 1 for placing an evolution display screen 2, wherein the evolution display screen 2 based on the GIS and used for evolving and displaying the historical space pattern is arranged on one side of the bearing seat stand 1, the bottom end surface of the evolution display screen 2 is connected with a sealing structure, a display structure used for unfolding and folding the evolution display screen 2 is arranged below the sealing structure, the display structure is arranged inside the bearing seat stand 1, a mobile positioning structure is arranged at the bottom end of the bearing seat stand 1, moving wheels 8 used for transferring are arranged around the bottom end of the bearing seat stand 1, and an operation panel 3 used for operating and controlling is arranged on the upper end surface of the bearing seat stand 1;
the display structure comprises an inner cavity 606 arranged on one side inside the bearing base table 1, a motor 6 serving as a power output end is arranged on one side of the inner cavity 606, an output end of the motor 6 is fixedly connected with an input end of a screw 601, one end, far away from the motor 6, of the screw 601 is connected with a connecting plate 602, and the top end of the connecting plate 602 is connected with a sealing structure.
Screw holes 603 are formed in one side of the connecting plate 602, the screw holes 603 are connected with the screw rods 601 in a matched mode, and the screw rods 601 are matched with the screw holes 603 to drive the connecting plate 602 to move up and down.
Spacing hole 604 has been seted up to one side that screw 603 was kept away from to further connecting plate 602, and the inside sliding connection of spacing hole 604 has gag lever post 605, and gag lever post 605 sets up in the inside of spacing groove 607, and spacing groove 607 sets up in one side of inner chamber 606 for the linear movement of connecting plate 602, through the gag lever post 605 that sets up, when preventing to evolve show screen 2 and reciprocate, produces the lateral deviation in the position.
Further seal structure is including setting up in the linking seat 201 of evolution display screen 2 below, the bottom of linking seat 201 is connected with the backing plate 202, N group's sealed chamber 204 has been seted up around backing plate 202, the inside sliding connection of sealed chamber 204 has pillar pole 205, one side of pillar pole 205 is connected with air cushion 203, sealing plug 206 has been cup jointed to one side of pillar pole 205, an air for removing the inside air in extrusion sealed chamber 204, through the sealing plug 206 that sets up, can extrude the inside air in sealed chamber 204, make its atmospheric pressure grow.
Further accept one side of seat platform 1 and seted up passageway 5 for the reciprocating of evolution show screen 2, through the passageway 5 that sets up, evolution show screen 2 can reciprocate through passageway 5.
Further mobile location structure is including setting up in the air pump 7 of the inside bottom of seat stand 1, and the output of air pump 7 is connected with two sets of connecting rods 701, and one side of connecting rod 701 is connected with first rack bar 702, and first rack bar 702 pegs graft to the inside of first axle box 703, and the inside rotation of first axle box 703 is connected with connecting gear 704, through the two sets of connecting rods 701 that set up, connects two sets of first axle boxes and four sets of second axle boxes.
One side of the further two groups of connecting rods 701 is connected with a first rack bar 702 respectively, and the two groups of connecting rods 701 are connected through the first rack bar 702, and the connecting gear 704 is driven to rotate through the arranged first rack bar 702.
A gear shaft 706 is rotatably connected inside the further connecting gear 704, two sides of the gear shaft 706 are connected with a second shaft box 707, one side of the second shaft box 707 is connected with a second rack bar 705, the bottom end of the second rack bar 705 is connected with a supporting leg 4, and the position of the bearing seat stand 1 is fixed through the supporting leg 4.
A use method of a historical spatial pattern evolution display device based on a GIS comprises the following steps:
step (A), a control motor 6 drives a screw rod 601 to rotate, and the screw rod 601 is matched with a screw hole 603 of a connecting plate 602, so that the connecting plate 602 moves to the surface of the bearing seat stand 1 from the inner cavity 606 through a channel 5, and drives an evolution display screen 2 to display an evolution process of a historical space pattern on the upper surface of the bearing seat stand 1 based on a GIS; the screw 601 is arranged and is driven to move up and down through the matching effect with the screw hole 603 of the connecting plate 602;
step (B), in the upward movement process of the evolution display screen 2, driving the bottom cushion plate 202 at the bottom end of the connecting seat 201 to move into the channel 5, extruding the air cushion 203 on the inner wall of the channel 5, and driving the sealing plug 206 at one side of the support rod 205 to extrude the air in the sealing cavity 204 by the force of the air cushion 203 to generate air pressure, and reversely acting on the bottom end of the air cushion 203 to drive the air cushion 203 to generate elastic deformation, extruding and attaching the air cushion to the inner wall of the channel 5, and sealing the receiving seat platform 1; the gap between the bottom cushion plate 202 and the inner wall of the channel 5 can be reduced by the arranged air cushion 203;
step (C), during moving positioning, controlling the air pump 7 to operate, driving the second rack rod 705 at one side of the connecting rod 701 to extend out, meshing the second rack rod 705 with the connecting gear 704, connecting the gear shaft 704, and driving the second rack rod 705 in the second shaft box 707 at two sides of the gear shaft 706 to mesh with the connecting gear, so as to achieve the purpose of moving up and down, thereby controlling the supporting legs 4 to contract and extend at the bottom end of the bearing platform 1; the air pump 7 can drive the supporting legs 4 to contract and extend at the bottom end of the bearing seat stand 1 through linkage;
step (D), when the bearing seat table 1 moves, controlling the supporting legs 4 to extend out, so that the supporting legs 4 are extruded to the ground surface, and supporting the bearing seat table 1 to finish positioning work; otherwise, the seat is contracted to lose the connection with the ground, and the bearing seat stand 1 is pushed and pulled to move through the moving wheels 8; the bearing seat table 1 can be directly moved by the moving wheel 8 through the moving wheel 8;
step (E), after the use, controlling the motor 6 to reversely rotate to drive the evolution display screen 2 to move towards the inner cavity 606 and store the evolution display screen in the bearing seat stand 1, so that the bearing seat stand 1 becomes a similar cube, and the protection and storage of the evolution display screen 2 are completed; the bearing seat platform 1 is changed into a similar cube, so that the space above the bearing seat platform 1 can be conveniently utilized subsequently.
The historical spatial pattern evolution display device based on the GIS and the use method thereof have the following advantages that:
1. the evolvable display screen can be rapidly moved out of the interior of the bearing seat platform through the arranged display structure, so that the evolvable display screen is convenient to display, has certain safety performance compared with the traditional display device, can effectively prevent unstable factors in the external environment from causing impact damage, and improves the protection performance of the device.
2. According to the invention, through the arranged mobile positioning structure, the position of the device can be flexibly adjusted according to the use requirement, the device is convenient to use, and meanwhile, the device can be rapidly regulated at a specified position, so that the device is prevented from being shifted in position due to the slippage of the mobile wheel, and the display effect is influenced.
3. According to the invention, the internal space of the bearing base platform is separated from the external environment through the arranged sealing structure, so that external liquid water and dust lamps are prevented from entering the inner cavity of the bearing base platform through the channel, the evolution display screen is prevented from being damaged by the accommodation environment of the evolution display screen, and the tidiness of the storage environment is improved.
Although the present invention has been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A historical spatial pattern evolution display device based on GIS is characterized in that: the evolution display screen is characterized by comprising a bearing seat stand (1) used for placing an evolution display screen (2), wherein the evolution display screen (2) based on a GIS and used for displaying an evolution historical space pattern is arranged on one side of the bearing seat stand (1), the bottom end face of the evolution display screen (2) is connected with a sealing structure, a display structure used for unfolding and unfolding the evolution display screen (2) is arranged below the sealing structure, the display structure is arranged inside the bearing seat stand (1), a movable positioning structure is arranged at the bottom end of the bearing seat stand (1), movable wheels (8) used for transferring are arranged around the bottom end of the bearing seat stand (1), and an operation panel (3) used for controlling is arranged on the upper end face of the bearing seat stand (1);
the display structure comprises an inner cavity (606) arranged on one side inside the bearing base table (1), a motor (6) serving as a power output end is arranged on one side of the inner cavity (606), an output end of the motor (6) is fixedly connected with an input end of a screw rod (601), one end, far away from the motor (6), of the screw rod (601) is connected with a connecting plate (602), and the top end of the connecting plate (602) is connected with a sealing structure.
2. The device for displaying the evolution of the historical spatial schema based on the GIS according to claim 1, wherein: screw hole (603) have been seted up to one side of connecting plate (602), screw hole (603) and screw rod (601) between the cooperation be connected.
3. The device for displaying the historical spatial pattern evolution based on the GIS according to claim 2, wherein: the connecting plate is characterized in that a limiting hole (604) is formed in one side, away from the screw hole (603), of the connecting plate (602), a limiting rod (605) is connected to the inside of the limiting hole (604) in a sliding mode, the limiting rod (605) is arranged inside a limiting groove (607), and the limiting groove (607) is arranged on one side of the inner cavity (606) and used for linear movement of the connecting plate (602).
4. The GIS-based historical spatial pattern evolution display device according to claim 1, wherein: seal structure is including setting up in linking up seat (201) of evolution show screen (2) below, the bottom of linking up seat (201) is connected with base plate (202), N group's sealed chamber (204) have been seted up all around of base plate (202), the inside sliding connection in sealed chamber (204) has prop pole (205), one side of prop pole (205) is connected with air cushion (203), sealing plug (206) have been cup jointed to one side of prop pole (205) for the inside air in sealed chamber (204) of removal extrusion.
5. The device for displaying the evolution of the historical spatial schema based on the GIS according to claim 1, wherein: and a channel (5) is formed in one side of the bearing seat stand (1) and used for moving the evolution display screen (2) up and down.
6. The GIS-based historical spatial pattern evolution presentation device of claim 4, wherein: the base plate (202) is of a vertically symmetrical structure, wherein N is an even number greater than or equal to 8.
7. The device for displaying the evolution of the historical spatial schema based on the GIS according to claim 1, wherein: remove location structure including setting up air pump (7) in the inside bottom of socket stand (1), the output of air pump (7) is connected with two sets of connecting rods (701), one side of connecting rod (701) is connected with first rack bar (702), first rack bar (702) plug-in connection to the inside of first axle box (703), the internal rotation of first axle box (703) is connected with connecting gear (704).
8. The device for displaying the evolution of the historical spatial schema based on the GIS according to claim 7, wherein: two sets of one side of connecting rod (701) is connected with first rack bar (702) respectively, just two sets of connecting rod (701) are connected through first rack bar (702).
9. The device for displaying the evolution of the historical spatial schema based on the GIS according to claim 7, wherein: a gear shaft (706) is rotatably connected inside the connecting gear (704), two sides of the gear shaft (706) are connected with a second shaft box (707), a second rack bar (705) is connected inside one side of the second shaft box (707), and the bottom end of the second rack bar (705) is connected with a supporting leg (4).
10. The method for using the historical spatial pattern evolution display device based on the GIS according to any one of claims 1-9, wherein the method comprises the following steps: the method comprises the following steps:
step (A), a motor (6) is controlled to drive a screw rod (601) to rotate, the screw rod (601) is matched with a screw hole (603) of a connecting plate (602), so that the connecting plate (602) moves to the surface of a bearing seat (1) from an inner cavity (606) through a channel (5), and an evolution display screen (2) is driven to display an evolution process of a historical spatial pattern on the upper surface of the bearing seat (1) based on a GIS;
step (B), in the upward movement process of the evolution display screen (2), driving a bottom cushion plate (202) at the bottom end of the connecting seat (201) to move into the channel (5), extruding an air cushion (203) on the inner wall of the channel (5), and driving a sealing plug (206) at one side of a support rod (205) to extrude air in a sealing cavity (204) by the force of the air cushion (203) so as to generate air pressure, reversely acting on the bottom end of the air cushion (203), driving the air cushion (203) to generate elastic deformation, extruding and attaching to the inner wall of the channel (5), and sealing the bearing seat platform (1);
step (C), during moving positioning, controlling an air pump (7) to operate to drive a second rack bar (705) on one side of a connecting rod (701) to extend out, meshing the second rack bar (705) with a connecting gear (704), connecting a gear shaft (704), and driving the second rack bar (705) inside a second shaft box (707) on two sides of the gear shaft (706) to mesh with the second rack bar to achieve the purpose of moving up and down, thereby controlling the supporting legs (4) to contract and extend at the bottom end of the bearing seat platform (1);
step (D), when the bearing seat table (1) moves, the supporting legs (4) are controlled to extend out, so that the supporting legs (4) are extruded to the ground surface, the bearing seat table (1) is supported, and the positioning work is completed; otherwise, the seat is contracted to lose the connection with the ground, and the bearing seat stand (1) is pushed and pulled to move through the moving wheels (8);
and (E) after the use, controlling the motor (6) to rotate reversely to drive the evolution display screen (2) to move towards the inner cavity (606) and store the evolution display screen in the bearing seat (1), so that the bearing seat (1) becomes a cube, and the protection and storage of the evolution display screen (2) are completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210254345.4A CN114596781A (en) | 2022-03-15 | 2022-03-15 | Historical spatial pattern evolution display device based on GIS and use method thereof |
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| CN202210254345.4A CN114596781A (en) | 2022-03-15 | 2022-03-15 | Historical spatial pattern evolution display device based on GIS and use method thereof |
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| CN109366546A (en) * | 2018-09-20 | 2019-02-22 | 钟浪婵 | A kind of factory's pickled radish cutting equipment |
| CN211073594U (en) * | 2019-10-15 | 2020-07-24 | 海盐宏强表面处理有限公司 | A regulation formula manipulator for work piece processing |
| CN211657839U (en) * | 2020-01-15 | 2020-10-13 | 许宪玲 | Vertical computer exhibition frame |
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| CN213898938U (en) * | 2020-12-24 | 2021-08-06 | 大庆乾晟润水江环保科技有限公司 | Movable water injection and polymer injection device |
| CN215376771U (en) * | 2021-03-08 | 2021-12-31 | 湖北国土资源职业学院(中共湖北省地质局党校) | Territory space planning design layout display device |
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