CN214156591U

CN214156591U - Multifunctional workbench for territory space planning

Info

Publication number: CN214156591U
Application number: CN202021970604.6U
Authority: CN
Inventors: 杨洪星
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-09-10
Anticipated expiration: 2030-09-10

Abstract

The utility model belongs to the technical field of national soil space planning, in particular to a multifunctional workbench for national soil space planning, which comprises a working platform, wherein the bottom of the working platform is screwed with a left support plate and a right support plate, the left support plate and the right support plate are fixedly provided with a multifunctional lifting hanger device, the right side wall of the left support plate is screwed with a telescopic text frame device, the top of the working platform is downwards communicated and connected with an automatic lifting projector device, the bottom of the working platform is provided with a storage drawer cabinet, the inner cavity of the storage drawer cabinet is inserted with a drawer, the storage drawer cabinet is also internally provided with a power supply bin and a storage battery bin, a power supply module is arranged in the power supply bin, a storage battery is arranged in the storage battery bin, the front wall of the storage drawer cabinet is screwed with a circuit mounting plate, the circuit mounting plate is provided with a control keyboard, a USB (universal serial bus) connector and a 220V power supply socket, the device is convenient for hanging and watching drawings and maps, the operation is carried out while the picture is viewed, and meanwhile, the projection playing of slides or videos can be carried out.

Description

Multifunctional workbench for territory space planning

Technical Field

The utility model belongs to the technical field of the national soil space planning, concretely relates to national soil space planning uses multi-functional workstation.

Background

With the reform scheme of the national and local institutions falling to the ground, the natural resource department and each local department are established in succession, and the space rule enters a new period, so that the homeland space planning and compiling work is promoted comprehensively. The homeland space planning and compiling work comprises main tasks of clear planning thought, unified planning foundation, development of foundation evaluation, drawing of planning base map, compiling of space planning and the like. On the premise of unifying planning basic information, carrying out resource environment bearing capacity evaluation and land space development suitability evaluation (called 'double evaluation' for short), defining 'three-region three-line' and forming a planning base map; and then, a planning target is made by combining the national, regional and urban development index strategies. And on the basis of planning implementation evaluation, performing element configuration, and overlapping a planning base map to form a spatial layout scheme so as to finish planning result compilation.

Compared with the prior art the problem that exists:

most of the existing multifunctional working tables for the territorial space planning are only tables with simple structures, lack of functionality, cause inconvenience in hanging and watching drawings or maps, and simultaneously are inconvenient for playing PPT or videos required by the territorial space planning work.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a territory space planning uses multi-functional workstation, through the setting of multi-functional lift stores pylon device, automatic rising projecting apparatus device etc. makes this device conveniently watch hanging of drawing and map, makes things convenient for the limit to see picture limit operation, can carry out slide or video projection broadcast simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multifunctional workbench is used in national soil space planning, includes work platform, work platform's bottom spiro union has left support plate and right branch fagging, the common fixed mounting of left support plate and right branch fagging has multi-functional lift stores pylon device, the right side wall spiro union of left support plate has telescopic text frame device, work platform's top link up downwards and is connected with automatic rising projecting apparatus device, storing drawer cabinet is installed to work platform's bottom, the inner chamber of storing drawer cabinet is pegged graft and is had the drawer, the inside of storing drawer cabinet still is equipped with power storehouse and battery storehouse, install power module in the power storehouse, install the battery in the battery storehouse, the antetheca spiro union of storing drawer cabinet has the circuit mounting board, install control keyboard, USB and 220V power connector on the circuit mounting board.

Preferably, the multifunctional lifting hanger device comprises a hanger mounting seat which is screwed on the left supporting plate and the right supporting plate, the rear wall of the hanging rack mounting seat is in threaded connection with a connecting rod, the rear end of the connecting rod is fixed with a lifting rod sleeve, a lifting rod is inserted in the inner cavity of the lifting rod sleeve, a first lifting motor is fixedly arranged at the bottom of the lifting rod sleeve, the output shaft of the first lifting motor is fixedly connected with a first spiral transmission rod, the inner cavity of the lifting rod is provided with internal threads and is in spiral transmission connection with the first spiral transmission rod, the top of the lifting rod is fixedly connected with a multifunctional hanging frame, when the multifunctional lifting hanger device is needed to be used, the first lifting motor is controlled to operate through the control keyboard to drive the first spiral transmission rod to rotate, and therefore the lifting rod and the multifunctional hanger are driven to rise to the highest position through spiral transmission.

Preferably, the projection curtain pivot is installed to the inner chamber of multi-functional stores pylon, install the projection curtain in the projection curtain pivot, the right-hand member of projection curtain pivot and the output shaft fixed connection that the motor was receive and releases to the curtain, the antetheca of multi-functional stores pylon still the spiro union have the drawing to press from both sides, and the drawing presss from both sides and is used for fixed drawing or map, receive and releases the motor rotation through the steerable curtain of control keyboard, drives the rotation of projection curtain pivot and puts down the projection curtain, plays slide or video with the projecting apparatus cooperation.

Preferably, telescopic text frame device includes first slide rail and second slide rail, first slide rail with the second slide rail all with slider sliding connection, the slider is fixed with text frame spiro union board spiro union, the right side wall spiro union of text frame spiro union board has the text frame, and the text frame removes through the cooperation of first slide rail, second slide rail and slider, first slide rail with the rear end of second slide rail is fixed mounting still has first magnetism to inhale the board.

Preferably, the back wall of text frame is equipped with second magnetism suction disc, and second magnetism suction disc carries out the magnetism with the cooperation of first magnetism suction disc and adsorbs for prevent the text frame roll-off, the handle is installed to the antetheca of text frame, and the handle is used for conveniently pulling out the text frame, the inside of text frame is equipped with a plurality of text standing grooves, and the setting of a plurality of text standing grooves is more convenient to the categorised storage of all kinds of text data.

Preferably, the automatic lifting projector device comprises a projector installation bin, a second spiral transmission rod and a guide sliding rod are installed in an inner cavity of the projector installation bin, the second spiral transmission rod is in spiral transmission connection with a spiral transmission seat, the guide sliding rod is in sliding connection with a guide sliding seat, the spiral transmission seat and the guide sliding seat are respectively and integrally formed on two sides of the projector, the bottom end of the second spiral transmission rod is fixedly connected with an output shaft of a second lifting motor, the second lifting motor is in screwed connection with the bottom of the projector installation bin, a wooden plate is installed at the top of the projector, the wooden plate is the same as the working platform in material and is flush with the top surface of the working platform when the projector is not lifted, the influence on the use of the working platform is avoided, the second lifting motor is controlled by a control keyboard to operate to drive the second spiral transmission rod to rotate, the second spiral transmission rod drives the spiral transmission seat and the projector to rise under the matching of the guide sliding seat and the guide sliding rod through spiral transmission, and after the projector rises, the second spiral transmission rod is connected with the projector and a computer through a video signal line and is matched with a projection curtain to perform projection playing of slides or videos.

Preferably, the bottoms of the left support plate and the right support plate are both bonded with anti-skid rubber pads.

Preferably, four corners of the working platform are wrapped with anti-collision soft rubber sleeves.

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

when the multifunctional lifting hanger device is not needed, the lifting rod on the multifunctional lifting hanger device is hidden in the lifting rod sleeve, and the top surface of the multifunctional hanger is flush with the top surface of the working platform, so that the lifting rod is prevented from being broken and the space is saved, when the multifunctional lifting hanger device is needed, the first lifting motor is controlled by the control keyboard to operate, the first spiral transmission rod is driven to rotate, so that the lifting rod and the multifunctional hanger are driven to be lifted to the highest position through spiral transmission, a drawing or a map can be hung and fixed through the drawing paper clamp, the drawing and the map are convenient to hang and watch, the operation while viewing the picture is convenient, when a video screen and a slide are needed to be played, the curtain retraction motor can be controlled to rotate through the control keyboard, the projection curtain rotating shaft is driven to rotate, the projection curtain is put down, the second lifting motor is controlled to operate, and the second spiral transmission rod is driven to rotate, the second spiral transmission rod drives the spiral transmission seat and the projector to rise under the matching of the guide sliding seat and the guide sliding rod through spiral transmission, and after the projector rises, the second spiral transmission rod is connected with the projector and a computer through a video signal line and is matched with a projection curtain to perform projection playing of slides or videos;

the telescopic text shelf device can be used for placing books, notebook data and the like, when the texts do not need to be taken, the text shelf is pushed to the first magnetic attraction plate and the second magnetic attraction plate to be magnetically attracted, so that the text shelf is completely positioned at the inner side of the device, the text shelf can be prevented from sliding out, the space is saved, when the texts need to be taken, the text shelf can be pulled out under the matching of the first sliding rail, the second sliding rail and the sliding block through the handle, the use is convenient, and meanwhile, the plurality of text placing grooves on the text shelf facilitate the classified storage of various texts;

when the mobile phone needs to be charged or connected with other electrical appliances, the mobile phone can be charged and connected with other electrical appliances through the USB interface and the 220V power interface, and when power is cut off, the storage battery can be used for supplying power to the device.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of an axial measurement structure of the present invention;

FIG. 2 is a schematic front view of the present invention;

fig. 3 is a schematic rear view of the present invention;

fig. 4 is a right-side schematic view of the multifunctional lifting hanger device of the present invention when not opened;

FIG. 5 is a schematic top view of the retractable document holder apparatus of the present invention;

FIG. 6 is a schematic sectional view of the multi-functional lifting frame device of the present invention;

fig. 7 is a schematic sectional view of the automatic lifting projector apparatus of the present invention;

fig. 8 is the internal structure diagram of the multifunctional hanging rack of the present invention.

In the figure: 100 work platform, 110 left support plate, 120 right support plate, 200 multifunctional lifting hanger device, 210 hanger mounting base, 220 connecting rod, 230 lifting rod sleeve, 240 lifting rod, 250 first lifting motor, 260 first spiral transmission rod, 270 multifunctional hanger, 271 projection curtain rotating shaft, 272 projection curtain, 273 curtain collecting motor, 274 picture paper clip, 300 telescopic text frame device, 310 first slide rail, 320 second slide rail, 330 slide block, 340 text frame spiral plate, 350 text frame, 351 handle, 352 text placing groove, 361 first magnetic suction plate, 362 second magnetic suction plate, 400 automatic lifting projector device, 410 projector mounting bin, 421 second spiral transmission rod, 422 guide slide rod, 430 projector, 431 spiral transmission seat, 432 guide slide seat, 440 second lifting motor, 450 wood plate, 500 storage drawer cabinet, 510 drawer, 520 power supply bin, 521 power supply module, 530 storage battery bin, 531 accumulator, 540 circuit mounting plate, 541 control keyboard, 542 USB interface and 543220V power interface.

Detailed Description

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

Example 1

Referring to fig. 1-8, the present invention provides the following technical solutions: the utility model provides a multifunctional workbench is used in national soil space planning, includes work platform 100, the bottom spiro union of work platform 100 has left support plate 110 and right support plate 120, the common fixed mounting of left support plate 110 and right support plate 120 has multi-functional lift stores pylon device 200, the right side wall spiro union of left support plate 110 has telescopic text frame device 300, work platform 100's top is link up downwards and is connected with automatic rising and falling projecting apparatus device 400, storing drawer cabinet 500 is installed to work platform 100's bottom, the inner chamber spiro union of storing drawer cabinet 500 has drawer 510, the inside of storing drawer cabinet 500 still is equipped with power supply bin 520 and battery bin 530, install power module 521 in power supply bin 520, install battery 531 in battery bin 530, the antetheca spiro union of storing drawer cabinet 500 has circuit mounting panel 540, install control keyboard 541, circuit mounting panel 540 on, A USB connector 542 and a 220V power outlet 543.

In this embodiment: the multifunctional lifting hanging rack device comprises a working platform 100, a left supporting plate 110 and a right supporting plate 120 are screwed at the bottom of the working platform 100, a multifunctional lifting hanging rack device 200 is fixedly mounted on the left supporting plate 110 and the right supporting plate 120 together, a telescopic text rack device 300 is screwed on the right side wall of the left supporting plate 110, the top of the working platform 100 penetrates downwards and is connected with an automatic lifting projector device 400, a storage drawer cabinet 500 is mounted at the bottom of the working platform 100, a drawer 510 is inserted into an inner cavity of the storage drawer cabinet 500, the drawer 510 can store some sundries, a power supply bin 520 and a storage battery bin 530 are further arranged inside the storage drawer cabinet 500, a power supply module 521 is mounted in the power supply bin 520 and is used for being connected with an external power supply, a storage battery 531 is mounted in the storage battery bin 530, and when power fails, the device can be powered by the storage battery 531, the front wall spiro union of storing drawer cabinet 500 has circuit mounting panel 540, install control keyboard 541, USB connector 542 and 220V power socket 543 on the circuit mounting panel 540, when needing to charge or connect other electrical apparatus to the cell-phone, can charge and connect other electrical apparatus to the cell-phone through USB interface 542 and 220V power socket 543.

Specifically, the multifunctional lifting hanger device 200 comprises a hanger mounting base 210, the hanger mounting base 210 is screwed on the left support plate 110 and the right support plate 120, the rear wall of the hanger mounting base 210 is screwed with a connecting rod 220, the rear end of the connecting rod 220 is fixed with a lifting rod sleeve 230, a lifting rod 240 is inserted in the inner cavity of the lifting rod sleeve 230, the bottom of the lifting rod sleeve 230 is fixedly provided with a first lifting motor 250, the output shaft of the first lifting motor 250 is fixedly connected with a first spiral transmission rod 260, the inner cavity of the lifting rod 240 is provided with internal threads and is in spiral transmission connection with the first spiral transmission rod 260, the top of the lifting rod 240 is fixedly connected with the multifunctional hanger 270, when the multifunctional lifting rack device 200 is needed, the first lifting motor 250 is controlled to operate through the control keyboard 541, the first spiral transmission rod 260 is driven to rotate, thereby driving the lifting rod 240 together with the multi-function hanger 270 to be lifted up to the uppermost position through screw transmission.

Specifically, the inner chamber of the multifunctional hanger 270 is provided with a projection curtain rotating shaft 271, the projection curtain rotating shaft 271 is provided with a projection curtain 272, the right end of the projection curtain rotating shaft 271 is fixedly connected with an output shaft of a curtain winding and unwinding motor 273, the front wall of the multifunctional hanger 270 is further screwed with a drawing clamp 274, the drawing clamp 274 is used for fixing a drawing or a map, the curtain winding and unwinding motor 273 can be controlled to rotate through a control keyboard 541, the projection curtain rotating shaft 271 is driven to rotate to put down the projection curtain 272, and slides or videos are played in cooperation with the projector 430.

Specifically, the telescopic type document holder device 300 comprises a first slide rail 310 and a second slide rail 320, the first slide rail 310 and the second slide rail 320 are both connected with a slide block 330 in a sliding manner, the slide block 330 is fixed with a document holder screw joint plate 340 in a screw joint manner, a document holder 350 is connected with the right side wall of the document holder screw joint plate 340 in a screw joint manner, the document holder 350 moves through the matching of the first slide rail 310, the second slide rail 320 and the slide block 330, and a first magnetic absorption plate 361 is further fixedly installed at the rear ends of the first slide rail 310 and the second slide rail 320.

Specifically, the rear wall of text frame 350 is equipped with second magnetic attraction board 362, and second magnetic attraction board 362 carries out the magnetic adsorption with the cooperation of first magnetic attraction board 361 for prevent text frame roll-off, handle 351 is installed to the antetheca of text frame 350, and handle 351 is used for conveniently pulling out text frame 350, and the inside of text frame 350 is equipped with a plurality of text standing grooves 352, and the setting of a plurality of text standing grooves 352 is more convenient deposits the classification of all kinds of text data.

Specifically, the automatic lifting projector apparatus 400 includes a projector installation bin 410, a second spiral transmission rod 421 and a guide sliding rod 422 are installed in an inner cavity of the projector installation bin 410, the second spiral transmission rod 421 is in spiral transmission connection with a spiral transmission seat 431, the guide sliding rod 422 is in sliding connection with a guide sliding seat 432, the spiral transmission seat 431 and the guide sliding seat 432 are respectively and integrally formed at two sides of the projector 430, a bottom end of the second spiral transmission rod 421 is fixedly connected with an output shaft of a second lifting motor 440, the second lifting motor 440 is screwed at a bottom of the projector installation bin 410, a wood plate 450 is installed at a top of the projector 430, the wood plate 450 is the same as a material used by the working platform 100, and is flush with a top surface of the working platform 100 when the projector 430 is not lifted, so as to avoid affecting the use of the working platform 100, the second lifting motor 440 is controlled to operate by a control keyboard 541, so as to drive the second spiral transmission rod 421 to rotate, the second spiral transmission rod 421 drives the spiral transmission seat 431 and the projector 430 to ascend under the matching of the guide sliding seat 432 and the guide sliding rod 422 through spiral transmission, and after the projector 430 ascends, the projector 430 is connected with a computer through a video signal line, and slide or video projection and playing can be performed through matching with the projection curtain 272.

Specifically, anti-skid rubber pads are bonded to the bottoms of the left support plate 110 and the right support plate 120, so that the device is prevented from sliding on the ground.

Specifically, four corners of the working platform 100 are all wrapped with anti-collision soft rubber sleeves, so that damage caused by collision between corners and people is avoided.

The working principle and the using process of the invention are as follows: the power module 521 is connected with an external power supply to supply power for the device, when the multifunctional lifting hanger device 200 is not needed, the lifting rod 240 on the multifunctional lifting hanger device 200 is hidden in the lifting rod sleeve 230, meanwhile, the top surface of the multifunctional hanger 270 is flush with the top surface of the working platform 100, when the multifunctional lifting hanger device 200 is needed, the first lifting motor 250 is controlled by the control keyboard 541 to operate to drive the first spiral transmission rod 260 to rotate, so that the lifting rod 240 and the multifunctional hanger 270 are driven by spiral transmission to be lifted to the highest position, a drawing or a map can be suspended and fixed by the drawing clamp 274, when a video screen and a slide are needed to be played, the curtain retraction motor 273 can be controlled by the control keyboard 541 to rotate to drive the projection curtain rotating shaft 271 to rotate to put down the projection curtain 272, the second lifting motor 440 is controlled to operate to drive the second spiral transmission rod 421 to rotate, the second spiral transmission rod 421 drives the spiral transmission seat 431 and the projector 430 to ascend under the matching of the guide sliding seat 432 and the guide sliding rod 422 through spiral transmission, after the projector 430 ascends, the projector 430 is connected with a computer through a video signal line, slide or video projection and play can be carried out by matching with the projection curtain 272, books, notebook data and the like can be placed through the telescopic text shelf device 300, the plurality of text placing grooves 352 on the text shelf 350 facilitate the classified storage of various texts, when the texts do not need to be taken, the text shelf 350 is pushed to the first magnetic suction plate 361 and the second magnetic suction plate 362 for magnetic attraction connection, the text shelf 350 can be prevented from slipping out, when the texts need to be taken, the text shelf 350 can be pulled out under the matching of the first sliding rail 310, the second sliding rail 320 and the sliding block 330 through the pull handle 351, when the mobile phone needs to be charged or connected with other electric appliances, the mobile phone can be charged and connected with other appliances through the USB interfaces 542 and 220V power supply interfaces, when power is off, the battery 531 can be used to supply power to the device.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a homeland space planning uses multi-functional workstation which characterized in that: the multifunctional lifting and hanging rack device comprises a working platform (100), a left supporting plate (110) and a right supporting plate (120) are connected to the bottom of the working platform (100) in a screwed mode, a multifunctional lifting and hanging rack device (200) is fixedly mounted on the left supporting plate (110) and the right supporting plate (120) jointly, a telescopic text rack device (300) is connected to the right side wall of the left supporting plate (110) in a screwed mode, the top of the working platform (100) penetrates downwards and is connected with an automatic lifting projector device (400), a storage drawer cabinet (500) is mounted at the bottom of the working platform (100), a drawer (510) is inserted into an inner cavity of the storage drawer cabinet (500), a power supply bin (520) and a storage battery bin (530) are further arranged inside the storage drawer cabinet (500), a power supply module (521) is mounted in the power supply bin (520), a storage battery (531) is mounted in the storage battery bin (530), and a circuit mounting plate (540) is connected to the front wall of the storage drawer cabinet (500) in a screwed mode, and the circuit mounting plate (540) is provided with a control keyboard (541), a USB (universal serial bus) connecting port (542) and a 220V power socket (543).

2. The multifunctional workbench for territorial space planning according to claim 1, wherein: the multifunctional lifting hanger device (200) comprises a hanger mounting seat (210), the hanger mounting seat (210) is in screwed connection with a left support plate (110) and a right support plate (120), a connecting rod (220) is in screwed connection with the rear wall of the hanger mounting seat (210), a lifting rod sleeve (230) is fixed at the rear end of the connecting rod (220), a lifting rod (240) is inserted in the inner cavity of the lifting rod sleeve (230), a first lifting motor (250) is fixedly mounted at the bottom of the lifting rod sleeve (230), an output shaft of the first lifting motor (250) is fixedly connected with a first spiral transmission rod (260), an inner cavity of the lifting rod (240) is provided with an internal thread and is in spiral transmission connection with the first spiral transmission rod (260), and the top of the lifting rod (240) is fixedly connected with the multifunctional hanger (270).

3. The multifunctional workbench for territorial space planning according to claim 2, wherein: projection curtain pivot (271) are installed to the inner chamber of multi-functional stores pylon (270), install projection curtain (272) on projection curtain pivot (271), the right-hand member of projection curtain pivot (271) and the output shaft fixed connection of curtain receiving and releasing motor (273), the antetheca of multi-functional stores pylon (270) still spiro union has picture paper to press from both sides (274).

4. The multifunctional workbench for territorial space planning according to claim 1, wherein: the telescopic text shelf device (300) comprises a first sliding rail (310) and a second sliding rail (320), the first sliding rail (310) and the second sliding rail (320) are both connected with a sliding block (330) in a sliding mode, the sliding block (330) is fixed with a text shelf screwing plate (340) in a screwing mode, a text shelf (350) is screwed on the right side wall of the text shelf screwing plate (340), and a first magnetic suction plate (361) is fixedly mounted at the rear end of the first sliding rail (310) and the rear end of the second sliding rail (320).

5. The multifunctional workbench according to claim 4, wherein: the back wall of the text rack (350) is provided with a second magnetic suction plate (362), the front wall of the text rack (350) is provided with a handle (351), and a plurality of text placing grooves (352) are formed in the text rack (350).

6. The multifunctional workbench for territorial space planning according to claim 1, wherein: the automatic lifting projector device (400) comprises a projector mounting bin (410), a second spiral transmission rod (421) and a guide sliding rod (422) are mounted in an inner cavity of the projector mounting bin (410), the second spiral transmission rod (421) is in spiral transmission connection with a spiral transmission seat (431), the guide sliding rod (422) is in sliding connection with a guide sliding seat (432), the spiral transmission seat (431) and the guide sliding seat (432) are respectively and integrally formed on two sides of a projector (430), the bottom end of the second spiral transmission rod (421) is fixedly connected with an output shaft of a second lifting motor (440), the second lifting motor (440) is in threaded connection with the bottom of the projector mounting bin (410), and a wooden plate (450) is mounted at the top of the projector (430).

7. The multifunctional workbench for territorial space planning according to claim 1, wherein: and anti-skid rubber pads are bonded to the bottoms of the left support plate (110) and the right support plate (120).

8. The multifunctional workbench for territorial space planning according to claim 1, wherein: four corners of the working platform (100) are all wrapped with anti-collision soft rubber sleeves.