CN214253650U

CN214253650U - Electromechanical integrated practical training platform device

Info

Publication number: CN214253650U
Application number: CN202120403446.4U
Authority: CN
Inventors: 聂旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-09-21
Anticipated expiration: 2031-02-24

Abstract

The application discloses real platform device of instructing of mechatronic, including real standard platform, real standard platform outer wall left and right sides bottom is fixed connection draw runner respectively, two the draw runner slides respectively and cup joints at second spout inner chamber, two the second spout is vertical respectively to be inlayed in a supporting bench inner chamber left and right sides, a supporting bench outer wall bottom four corners is fixed connection support capital end respectively. Through with fixture block joint draw-in groove, cover real standard platform surface with the apron, avoid the dust to pile up at real standard platform surface, simultaneously through starting first motor, first motor drives the pivot and rotates, the pivot drives gear revolve, the gear drives rack revolve rack and drives the clean piece and clean at real standard platform surface, thereby will instruct real standard platform surface dust to sweep real standard platform one side, through the pulling slide bar, the slide bar drives the stopper and breaks away from first recess, the commentaries on classics board downwardly rotating, the dust falls into the dust collecting tank, open the second door plant through the handle, be convenient for the dust in the centralized processing dust collecting tank.

Description

Electromechanical integrated practical training platform device

Technical Field

The application relates to a practical training platform device, in particular to an electromechanical integrated practical training platform device.

Background

With the continuous development of society, the optical-mechanical-electrical integration technology develops rapidly, and occupies an important position in the fields of industrial production and the like, and because the automation degree is high, the production efficiency is greatly improved, so that in some high schools, in order to enable students to learn more knowledge related to later work in schools, the practical training platform device can provide a good platform.

The height of the existing practical training platform device is inconvenient to adjust, move and fix, the space of a storage tool of the practical training platform is fixed, and the surface of the practical training platform is inconvenient to clean. Therefore, an electromechanical integrated practical training platform device is provided for solving the problems.

Disclosure of Invention

An electromechanical integrated training platform device comprises a training platform, wherein the bottoms of the left side and the right side of the outer wall of the training platform are respectively fixedly connected with a slide bar, the two slide bars are respectively slidably sleeved in the inner cavity of a second chute, the two second chutes are respectively vertically embedded in the left side and the right side of the inner cavity of a support platform, four corners of the bottom of the outer wall of the support platform are respectively fixedly connected with the top ends of support columns, the bottoms of the four support columns are respectively fixedly connected with pulleys, the center of the bottom of the support platform is fixedly connected with the top of a protective cover, the tops of the left side and the right side of the outer wall of the training platform are respectively and fixedly connected with a plurality of clamping grooves, the clamping grooves are respectively clamped with clamping blocks, the clamping blocks are respectively and fixedly connected with the left side and the right side of the bottom of a cover plate, the right side of the training platform is embedded with a dust collecting groove, one side of the top end of the dust collecting groove is rotatably connected with one side of a second door plate, one end of the front side wall of the second door plate is fixedly connected with a handle, the training platform is characterized in that two first door plates are embedded at the right end of the side wall of the front side of the training platform, one side, far away from each other, of each first door plate is respectively connected with the side wall of the training platform in a rotating mode, and the centers of the ends, close to each other, of the side walls of the front side of each first door plate are respectively fixedly connected with a handle.

Furthermore, the center of the bottom end of the inner cavity of the protective cover is fixedly connected with the bottom end of a second motor, the output end of the second motor is fixedly connected with the bottom end of the outer wall of the cavity shaft, and the outer wall of the cavity shaft is rotatably connected with and penetrates through the center of the supporting table.

Furthermore, the center of the bottom end of the outer wall of the training platform is fixedly connected with the top end of a first threaded rod, the bottom end of the first threaded rod is in threaded sleeve connection with the inner cavity of the cavity shaft, and the outer wall of the training platform is in sliding sleeve connection with the inner cavity of the supporting platform.

Furthermore, the bottom ends of the four support columns are respectively sleeved above the inner cavity of the threaded sleeve in a threaded manner, and the length of the four threaded sleeves is greater than that of the pulley.

Furthermore, the center of the top end and the center of the bottom end of the inner cavity of the training platform are respectively embedded with a horizontal limiting groove, the inner cavities of the two limiting grooves are respectively sleeved with a sliding block in a sliding mode, one side, close to each other, of each sliding block is fixedly connected with the center of the top end and the center of the bottom end of the partition plate, and the partition plate is vertically sleeved in the inner cavity of the training platform in a sliding mode.

Further, one side of the inner wall of the training platform is rotatably connected with one end of a second threaded rod, the other end of the second threaded rod is rotatably connected with and penetrates through the side wall of the right side of the training platform, the other end of the second threaded rod is fixedly connected with the center of one side of a turntable, and a partition plate is sleeved on the outer wall of the second threaded rod in a threaded manner.

Further, apron inner chamber rear side lateral wall center department fixed connection first motor, the one end of first motor output fixed connection pivot, the pivot other end rotates connects apron inner chamber front side lateral wall center department, the fixed gear that cup joints of pivot outer wall.

Further, the through-hole of horizontal direction, two has been inlayed respectively to the apron left and right sides lateral wall the through-hole slides respectively and cup joints the rack, both sides are the one end of fixed connection connecting plate respectively around the rack, two one side that the connecting plate kept away from each other is the first spout of sliding connection respectively, two first spout level is inlayed respectively and is lapped the inner chamber front and back both sides lateral wall.

Furthermore, the top end of the outer wall of the training platform is slidably connected with the bottom end of the cleaning block, the center of the top end of the cleaning block is fixedly connected with the bottom end of the rack, and the top end of the rack is meshed with the bottom end of the gear.

Further, the second recess that the board right side lateral wall inlayed the horizontal direction changes, the one end of second recess inner chamber fixed connection spring, the one end of the other end fixed connection stopper of spring, the first recess inner chamber of other end joint of stopper, first recess level inlays in real standard platform inner chamber one side, the spring slides and cup joints at second recess inner chamber, just the stopper slides and cup joints at the second recess, the one end of stopper front side lateral wall fixed connection slide bar, the other end sliding connection of slide bar just runs through logical groove, lead to the groove level and inlay at real standard platform front side lateral wall.

The beneficial effect of this application is: the application provides an electromechanical integration practical training platform device.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic overall perspective view of an embodiment of the present application;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present application;

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

FIG. 4 is a side view of the internal structure of a cover plate according to an embodiment of the present application;

FIG. 5 is a schematic external structural view of a training platform according to an embodiment of the present application;

fig. 6 is a schematic view of an external structure of a dust collecting groove according to an embodiment of the present application.

In the figure: 1. training platform, 2, first chute, 3, rack, 4, cleaning block, 5, rotating shaft, 6, gear, 7, first motor, 8, cover plate, 9, rotating plate, 10, through hole, 11, clamping groove, 12, second chute, 13, dust collecting groove, 14, limiting groove, 15, cavity shaft, 16, protective cover, 17, second motor, 18, first threaded rod, 19, pulley, 20, threaded sleeve, 21, slider, 22, partition plate, 23, slider, 24, second threaded rod, 25, rotating disk, 26, clamping block, 27, spring, 28, sliding rod, 29, first groove, 30, limiting block, 31, second groove, 32, handle, 33, first door plate, 34, second door plate, 35, supporting column, 37, supporting table, 38 and connecting plate.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

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

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

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

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-6, an electromechanical integrated training platform device includes a training platform 1, wherein bottom ends of left and right sides of an outer wall of the training platform 1 are respectively and fixedly connected with a slide bar 23, two slide bars 23 are respectively and slidably sleeved in inner cavities of second slide grooves 12, two second slide grooves 12 are respectively and vertically embedded in left and right sides of an inner cavity of a support platform 35, four corners of a bottom end of an outer wall of the support platform 35 are respectively and fixedly connected with top ends of support columns 36, bottom ends of four support columns 36 are respectively and fixedly connected with pulleys 19, a center of a bottom end of the support platform 35 is fixedly connected with a top end of a protective cover 16, top ends of left and right sides of an outer wall of the training platform 1 are respectively and uniformly and fixedly connected with a plurality of clamping grooves 11, a plurality of clamping grooves 11 are respectively and fixedly connected with clamping blocks 26, a plurality of clamping blocks 26 are respectively and fixedly connected with left and right sides of a bottom end of a cover plate 8, a dust collecting groove 13 is embedded in a right side of the training platform 1, one side of a top end of the dust collecting groove 13 is rotatably connected with one side of a rotating plate 9, the dust collecting groove 13 front side is rotated and is connected second door plant 34 one side, second door plant 34 front side lateral wall one end center department fixed connection handle 32, real standard platform 1 front side lateral wall right-hand member has inlayed two first door plants 33, two one side that first door plant 33 kept away from each other rotates respectively and is connected real standard platform 1 lateral wall, and two the one end center department that first door plant 33 front side lateral wall is close to each other is fixed connection handle 32 respectively.

The center of the bottom end of the inner cavity of the protective cover 16 is fixedly connected with the bottom end of a second motor 17, the output end of the second motor 17 is fixedly connected with the bottom end of the outer wall of the cavity shaft 15, the outer wall of the cavity shaft 15 is rotatably connected with and penetrates through the center of a supporting table 35, the cavity shaft 15 is conveniently driven to rotate by the second motor 17, the center of the bottom end of the outer wall of the practical training table 1 is fixedly connected with the top end of a first threaded rod 18, the bottom end of the first threaded rod 18 is in threaded sleeve connection with the inner cavity of the cavity shaft 15, the outer wall of the practical training table 1 is in sliding sleeve connection with the inner cavity of the supporting table 35, the practical training table 1 is conveniently driven to ascend and descend by the first threaded rod 18, the bottom ends of four supporting columns 36 are respectively in threaded sleeve connection above the inner cavity of threaded sleeves 20, the lengths of the four threaded sleeves 20 are longer than the length of a pulley 19, the device is convenient to move and fix, and the top end and bottom center of the inner cavity of the practical training table 1 are respectively embedded with a limiting groove 14 in the horizontal direction, the inner cavities of the two limit grooves 14 are respectively sleeved with a sliding block 21 in a sliding manner, one side, close to each other, of each of the two sliding blocks 21 is fixedly connected with the top end and the bottom end center of a partition plate 22, the partition plate 22 is vertically sleeved in the inner cavity of the practical training platform 1 in a sliding manner, the partition plate 22 is convenient to slide in the inner cavity of the practical training platform 1, one side of the inner wall of the practical training platform 1 is rotatably connected with one end of a second threaded rod 24, the other end of the second threaded rod 24 is rotatably connected with and penetrates through the right side wall of the practical training platform 1, the other end of the second threaded rod 24 is fixedly connected with the center of one side of a rotating disc 25, the partition plate 22 is rotatably sleeved on the outer wall of the second threaded rod 24 in a threaded manner, the rotating disc 25 is convenient to control the sliding of the partition plate 22, the center of the rear side wall of the inner cavity of the cover plate 8 is fixedly connected with a first motor 7, the output end of the first motor 7 is fixedly connected with one end of a rotating shaft 5, and the center of the front side wall of the inner cavity of the cover plate 8 is rotatably connected with the center of the inner cavity, the outer wall of the rotating shaft 5 is fixedly sleeved with a gear 6, so that the gear 6 is driven to rotate by a first motor 7, the side walls of the left side and the right side of the cover plate 8 are respectively embedded with a through hole 10 in the horizontal direction, the two through holes 10 are respectively sleeved with a rack 3 in a sliding manner, the front side and the rear side of the rack 3 are respectively and fixedly connected with one end of a connecting plate 38, one side, far away from each other, of the two connecting plates 38 is respectively and slidably connected with a first chute 2, the two first chutes 2 are respectively and horizontally embedded in the side walls of the front side and the rear side of the inner cavity of the cover plate 8, so that the rack 3 can slide conveniently, the top end of the outer wall of the practical training platform 1 is slidably connected with the bottom end of a cleaning block 4, the top end of the rack 3 is fixedly connected with the bottom end of the gear 6, so that the cleaning block 4 can be driven to slide conveniently by the rack 3, the side wall of the right side of the rotating plate 9 is embedded with a second groove 31 in the horizontal direction, and the inner cavity of the second groove 31 is fixedly connected with one end of a spring 27, the utility model discloses a training platform, including spring 27, other end fixed connection stopper 30, the first recess 29 inner chamber of other end joint of stopper 30, first recess 29 level inlays in real 1 inner chamber one side of training platform, spring 27 slides and cup joints at second recess 31 inner chamber, just stopper 30 slides and cup joints at second recess 31, the one end of stopper 30 front side lateral wall fixed connection slide bar 28, slide bar 28's other end sliding connection just runs through logical groove 37, it inlays at real 1 front side lateral wall of training platform to lead to the 37 level of groove, is convenient for control commentaries on classics board 9's rotation and fixed.

When the practical training platform is used, electrical components appearing in the practical training platform are externally connected with a power supply and a control switch when in use, the electrical components reach a designated position through a pushing pulley 19, then the four threaded sleeves 20 are rotated, the threaded sleeves 20 move downwards along a supporting column 36, so that the bottom ends of the threaded sleeves 20 are in contact with the ground, the fixing of the practical training platform 1 is realized, the output end of a second motor 17 is started, an cavity shaft 15 is driven by the output end of the second motor 17 to rotate, a first threaded rod 18 in threaded fit with the cavity shaft 15 moves upwards under the limitation of a supporting table 35, so that the practical training platform 1 is pushed to move upwards, a sliding strip 23 is matched with the ascending of the practical training platform 1 to slide upwards in a second sliding groove 12, the stability of the lifting process of the device is improved, the height of the practical training platform 1 is convenient to adjust, the requirements of users with different heights are met, a first door panel 33 is opened through a handle 32, tools can be stored in an inner cavity of the practical training platform 1, according to the size of the practical training tool, the rotary disc 25 can be rotated, the rotary disc 25 drives the second threaded rod 24 to rotate, the partition plate 22 in threaded fit with the second threaded rod 24 is limited by the slide block 21 and the limiting groove 14 to horizontally move along the second threaded rod 24, so that the partition plate 22 is driven to horizontally slide in the inner cavity of the practical training platform 1, the storage volume of the inner cavity is convenient to adjust, tools of different sizes are convenient to store in a classified mode, waste caused by using space is avoided, the cover plate 8 covers the surface of the practical training platform 1 by clamping the clamping block 26 with the clamping groove 11, dust is prevented from accumulating on the surface of the practical training platform 1, meanwhile, by starting the first motor 7, the first motor 7 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the gear 6 to rotate, the gear 6 drives the rack 3 to rotate the rack 3 to drive the cleaning block 4 to clean the surface of the practical training platform 1, so that the dust on the surface of the practical training platform 1 is swept to one side of the practical training platform 1, by pulling the slide rod 28, the sliding rod 28 drives the limiting block 30 to be separated from the first groove 29, the rotating plate 9 rotates downwards, dust falls into the dust collecting groove 13, and the handle 32 is used for opening the second door plate 34, so that the dust in the dust collecting groove 13 can be conveniently centralized and treated.

The application has the advantages that:

1. in order to avoid dust falling on the surface of the practical training platform, the clamping block is clamped in the clamping groove, the cover plate covers the surface of the practical training platform, dust is prevented from being accumulated on the surface of the practical training platform, meanwhile, the first motor is started to drive the rotating shaft to rotate, the rotating shaft drives the gear to rotate, the gear drives the rack to rotate, the rack drives the cleaning block to clean the surface of the practical training platform, so that the dust on the surface of the practical training platform is swept to one side of the practical training platform, the sliding rod drives the limiting block to be separated from the first groove by pulling the sliding rod, the rotating plate rotates downwards, the dust falls into the dust collecting groove, and the second door plate is opened through the handle, so that the dust in the dust collecting groove can be conveniently and intensively treated;

2. the device is reasonable in structure, the output end of the second motor drives the cavity shaft to rotate by starting the second motor, the first threaded rod in threaded fit with the cavity shaft moves upwards under the limitation of the support table, so that the practical training platform is pushed to move upwards, the slide bar is matched with the ascending of the practical training platform to slide upwards in the second sliding groove, and the stability of the lifting process of the device is improved, so that the height of the practical training platform can be conveniently adjusted to meet the requirements of users with different heights;

3. this application simple operation, reach the assigned position through the pulley, four threaded sleeve are rotated to the rethread, threaded sleeve moves down along the support column, thereby make threaded sleeve bottom contact ground, realize the fixing of device, open first door plant through the handle, can deposit real instrument of instructing at the inner chamber of real standard platform, according to the size of real instrument of instructing, can rotate the carousel, the carousel drives the second threaded rod and rotates, the restriction with second threaded rod screw-thread fit's baffle at slider and spacing groove is along second threaded rod horizontal migration, thereby it is at real standard platform inner chamber horizontal slip to drive the baffle, be convenient for adjust the deposition volume of inner chamber, thereby be convenient for not unidimensional instrument classification deposits, avoid the usage space to cause the waste.

The first motor 7 is of the 4IK type and its associated power supply and circuitry.

The second motor 17 is of the Z6D-104 series and its associated power supply and circuitry.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides an electromechanical integration practical training platform device which characterized in that: the device comprises a practical training platform (1), wherein the bottoms of the left side and the right side of the outer wall of the practical training platform (1) are respectively fixedly connected with a sliding strip (23), the two sliding strips (23) are respectively slidably sleeved in the inner cavity of a second sliding groove (12), the two second sliding grooves (12) are respectively vertically embedded in the left side and the right side of the inner cavity of a supporting platform (35), the four corners of the bottom of the outer wall of the supporting platform (35) are respectively fixedly connected with the top ends of supporting columns (36), the four bottoms of the supporting columns (36) are respectively fixedly connected with pulleys (19), the center of the bottom of the supporting platform (35) is fixedly connected with the top end of a protective cover (16), the tops of the left side and the right side of the outer wall of the practical training platform (1) are respectively and fixedly connected with a plurality of clamping grooves (11), the plurality of clamping grooves (11) are respectively clamped with clamping blocks (26), the plurality of clamping blocks (26) are respectively fixedly connected with the left side and the bottom of a cover plate (8), and the right side of the practical training platform (1) is embedded with a dust collecting groove (13), dust collecting tank (13) top one side is rotated and is connected commentaries on classics board (9) one side, dust collecting tank (13) front side is rotated and is connected second door plant (34) one side, fixed connection handle (32) are located at second door plant (34) front side lateral wall one end center, real standard platform (1) front side lateral wall right-hand member has inlayed two first door plant (33), two one side that first door plant (33) kept away from each other rotates respectively and connects real standard platform (1) lateral wall, and two the one end center department that first door plant (33) front side lateral wall is close to each other is fixed connection handle (32) respectively.

2. The mechatronic practical training platform device according to claim 1, characterized in that: safety cover (16) inner chamber bottom center department fixed connection second motor (17) bottom, second motor (17) output end fixed connection cavity axle (15) outer wall bottom, cavity axle (15) outer wall rotates to be connected and runs through brace table (35) center department.

3. The mechatronic practical training platform device according to claim 1, characterized in that: real standard platform (1) outer wall bottom center department fixed connection first threaded rod (18) top, first threaded rod (18) bottom screw thread cup joints at cavity axle (15) inner chamber, real standard platform (1) outer wall slides and cup joints at a supporting bench (35) inner chamber.

4. The mechatronic practical training platform device according to claim 1, characterized in that: the bottom ends of the four supporting columns (36) are respectively sleeved above the inner cavity of the threaded sleeve (20) in a threaded manner, and the length of the four threaded sleeves (20) is greater than that of the pulley (19).

5. The mechatronic practical training platform device according to claim 1, characterized in that: practical training platform (1) inner chamber top and bottom center punishment do not inlay limiting groove (14) of horizontal direction, two limiting groove (14) inner chamber slides respectively cup joints slider (21), two one side that slider (21) are close to each other is fixed connection baffle (22) top and bottom center punishment respectively, baffle (22) vertical slip cup joints at practical training platform (1) inner chamber.

6. The mechatronic practical training platform device according to claim 1, characterized in that: real standard platform (1) inner wall one side is rotated and is connected second threaded rod (24) one end, second threaded rod (24) other end is rotated and is connected and run through real standard platform (1) right side lateral wall, just second threaded rod (24) other end fixed connection carousel (25) one side center department, second threaded rod (24) outer wall screw thread cup joints baffle (22).

7. The mechatronic practical training platform device according to claim 1, characterized in that: apron (8) inner chamber rear side lateral wall center department fixed connection first motor (7), the one end of first motor (7) output end fixed connection pivot (5), pivot (5) other end rotates and connects apron (8) inner chamber front side lateral wall center department, pivot (5) outer wall is fixed cup joints gear (6).

8. The mechatronic practical training platform device according to claim 1, characterized in that: the through-hole (10), two that the horizontal direction was inlayed respectively to apron (8) left and right sides lateral wall through-hole (10) slip respectively and cup joint rack (3), the one end of both sides difference fixed connection connecting plate (38) around rack (3), two one side difference sliding connection first spout (2), two that connecting plate (38) kept away from each other first spout (2) level respectively inlays both sides lateral wall around apron (8) inner chamber.

9. The mechatronic practical training platform device according to claim 1, characterized in that: the top end of the outer wall of the practical training platform (1) is slidably connected with the bottom end of the cleaning block (4), the center of the top end of the cleaning block (4) is fixedly connected with the bottom end of the rack (3), and the top end of the rack (3) is meshed with the bottom end of the gear (6).

10. The mechatronic practical training platform device according to claim 1, characterized in that: it has second recess (31) of horizontal direction to change board (9) right side lateral wall to inlay, the one end of second recess (31) inner chamber fixed connection spring (27), the one end of the other end fixed connection stopper (30) of spring (27), the first recess of the other end joint (29) inner chamber of stopper (30), first recess (29) level inlays in real standard platform (1) inner chamber one side, spring (27) slide to cup joint at second recess (31) inner chamber, just stopper (30) slide to cup joint at second recess (31), the one end of stopper (30) front side lateral wall fixed connection slide bar (28), the other end sliding connection of slide bar (28) just runs through logical groove (37), it inlays at real standard platform (1) front side lateral wall to lead to logical groove (37) level.