阅读说明：本技术 工程项目造价风险管理系统 (Engineering project cost risk management system ) 是由 柳宁 吴言萍 许晨 于 2021-09-08 设计创作，主要内容包括：本申请涉及一种工程项目造价风险管理系统,应用在工程项目造价领域,其包括支撑架和板体,所述支撑架上转动连接有支撑轴,所述支撑轴的外缘开设有与板体相匹配的支撑槽,所述板体抵紧设置在支撑槽内,所述支撑架上还设有调节架,所述调节架上铰接有电动推杆,所述电动推杆远离调节架的一端与板体相互铰接。本申请具有的技术效果是：工作人员可以利用电动推杆自动对板体的俯仰角度进行调节,提升了工作人员使用过程中的便捷度,板体俯仰角度的调整过程可以借助电动推杆进行,省时省力且智能化程度较高。(The utility model relates to an engineering project cost risk management system uses in engineering project cost field, and it includes support frame and plate body, it is connected with the back shaft to rotate on the support frame, the outer fringe of back shaft seted up with plate body assorted support groove, the plate body supports tightly to set up at supporting inslot, still be equipped with the alignment jig on the support frame, articulated on the alignment jig have electric putter, electric putter keeps away from the one end of alignment jig and plate body articulated each other. The application has the technical effects that: the staff can utilize electric putter to adjust the every single move angle of plate body automatically, has promoted the convenient degree in the staff use, and the adjustment process of plate body every single move angle can go on with the help of electric putter, and labour saving and time saving and intelligent degree are higher.)

1. A project cost risk management system, its characterized in that: including support frame (1) and plate body (2), it is connected with back shaft (3) to rotate on support frame (1), the outer fringe of back shaft (3) seted up with plate body (2) assorted support groove (4), plate body (2) support tightly to set up in supporting groove (4), still be equipped with alignment jig (5) on support frame (1), articulated on alignment jig (5) have electric putter (6), the one end that alignment jig (5) were kept away from in electric putter (6) is articulated each other with plate body (2).

2. The project cost risk management system of claim 1, wherein: a plurality of threaded rods (7) are arranged on the plate body (2), a plurality of connecting holes (8) penetrating through the supporting shaft (3) are arranged on the groove wall of the supporting groove (4), the connecting holes (8) are matched with the threaded rods (7), the threaded rods (7) respectively penetrate through the connecting holes (8), the threaded rod (7) is connected with a nut (9) in a threaded manner, the nut (9) is tightly propped against the supporting shaft (3), one end of the electric push rod (6) far away from the adjusting frame (5) is hinged with a push plate (10), a plurality of connecting bolts (11) are arranged on the push plate (10) in a penetrating way and connected with the push plate through threads, the plate body (2) is provided with a fixing plate (12), the fixing plate (12) is correspondingly provided with a plurality of thread grooves (13) matched with the connecting bolts (11), and the connecting bolts (11) are respectively in threaded connection with the thread grooves (13).

3. The project cost risk management system of claim 2, wherein: the supporting plate is characterized in that a plurality of limiting grooves (14) are formed in the wall of each supporting groove (4), magnetic blocks (15) are embedded in the limiting grooves (14), a plurality of iron sheets (16) matched with the limiting grooves (14) are arranged on the plate body (2), and the iron sheets (16) are inserted into the limiting grooves (14) respectively and are in contact with the magnetic blocks (15).

4. The project cost risk management system of claim 2, wherein: a plurality of positioning rods (17) are arranged on the push plate (10), and a plurality of positioning grooves (18) matched with the positioning rods (17) are correspondingly formed in the fixed plate (12); when the positioning rods (17) are correspondingly inserted into the positioning grooves (18), the connecting bolts (11) are aligned with the thread grooves (13).

5. The project cost risk management system of claim 2, wherein: the supporting plate is characterized in that a plurality of supporting plates (19) are respectively arranged on the outer edge of the supporting shaft (3), a rubber pad (20) is arranged at one end, away from the supporting shaft (3), of the plurality of supporting plates (19), and the rubber pad (20) is tightly abutted to the plate body (2).

6. The project cost risk management system of claim 5, wherein: the one end that rubber pad (20) was kept away from in backup pad (19) is equipped with back shaft (3) assorted arc (21), wear to establish and threaded connection has mounting bolt (22) on arc (21), correspond on back shaft (3) and seted up a plurality of and mounting bolt (22) assorted mounting grooves, it is a plurality of mounting bolt (22) threaded connection respectively is in a plurality of mounting grooves.

7. The project cost risk management system of claim 1, wherein: two cleaning grooves (24) have been seted up on back shaft (3) respectively, support groove (4) and be located between two cleaning grooves (24), two be equipped with clearance frame (25) in clearance groove (24), wear to establish respectively and rotate on clearance frame (25) and be connected with two clearance poles (26), be equipped with cleaning plate (27) on clearance pole (26), be equipped with clearance cotton (28) on cleaning plate (27), clearance cotton (28) support tightly on the face of writing of plate body (2), still be equipped with on clearance frame (25) and be used for driving clearance pole (26) pivoted motor (29).

8. The project cost risk management system of claim 7, wherein: be equipped with fixed block (30) on clearance cotton (28), seted up on fixed block (30) with clearance board (27) assorted fixed slot (31), grafting is corresponding in fixed slot (31) in clearance board (27), wear to be equipped with a plurality of dead lever (32) on fixed block (30), correspond on clearance board (27) and seted up a plurality of and dead lever (32) assorted fixed orifices (33), set up on the cell wall relative with dead lever (32) in fixed slot (31) with dead lever (32) assorted slot (34), dead lever (32) are worn to establish fixed orifice (33) and plug and are in slot (34).

9. The project cost risk management system of claim 8, wherein: the outer edge of the fixing rod (32) is provided with an annular plate (35), the annular plate (35) is provided with an iron ring (36), the fixing block (30) is correspondingly embedded with a magnetic ring (37) matched with the iron ring (36), and the iron ring (36) and the magnetic ring (37) are mutually abutted and adsorbed.

10. The project cost risk management system of claim 8, wherein: a plurality of mounting rods (38) are arranged on the cleaning plate (27), and a plurality of mounting holes (39) matched with the mounting rods (38) are correspondingly formed in the groove wall of the fixing groove (31); when the installation rods (38) respectively penetrate through the installation holes (39), the fixing holes (33) are respectively aligned with the slots (34).

Technical Field

The application relates to the technical field of engineering cost, in particular to an engineering project cost risk management system.

Background

The construction cost of the engineering project directly means the construction price of the engineering project, which means the total cost spent on the construction of a certain project, and the core content of the construction project is investment estimation, design approximate calculation, correction approximate calculation, construction diagram budget, engineering settlement, completion settlement and the like; the main task of the project cost is to calculate the direct fee, enterprise management fee, measure fee, planning fee, profit, tax, etc. contained in the project according to the drawing, quota and list specifications.

The total construction cost of the building needs to be budgeted and checked in real time when each stage of construction of a project is carried out, a project cost builder can record the actual cost of each stage for reference and check of later work, and generally records the construction cost of each construction progress on a writable board body such as a blackboard or a white magnetic board and the like for the convenience of visual observation in the future.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: a plate body for writing record data is fixed mounting on the wall usually, and the every single move angle of plate body can't be adjusted according to actual need, leads to staff's use comparatively inconvenient.

Disclosure of Invention

The problem of the unable regulation of every single move angle in order to improve the plate body leads to staff inconvenient to use, the engineering project cost risk management system that this application provided adopts following technical scheme: the utility model provides an engineering project cost risk management system, includes support frame and plate body, it is connected with the back shaft to rotate on the support frame, the outer fringe of back shaft seted up with plate body assorted support groove, the plate body supports tightly to set up in supporting the inslot, still be equipped with the alignment jig on the support frame, articulated on the alignment jig have electric putter, electric putter keeps away from the one end of alignment jig and plate body articulated each other.

Through the technical scheme, when the pitching angle of the plate body needs to be adjusted, a worker can start the electric push rod to drive the plate body to drive the supporting shaft to rotate, and the length of the electric push rod can drive the plate body to rotate around the supporting shaft when being changed, so that the effect of automatically adjusting the pitching angle of the plate body is achieved, and the convenience of the worker in the use process is improved; simultaneously, the staff can utilize electric putter to adjust the every single move angle of plate body automatically, and labour saving and time saving and intelligent degree are higher.

Optionally, be equipped with a plurality of threaded rods on the plate body, set up a plurality of connecting holes that run through the back shaft on the cell wall in support groove, connecting hole and threaded rod phase-match, it is a plurality of the threaded rod corresponds respectively and wears to establish the connecting hole, threaded connection has the nut on the threaded rod, the nut supports tightly on the back shaft, electric putter keeps away from the one end of alignment jig and articulates there is the push pedal, wear to establish and threaded connection has a plurality of connecting bolt in the push pedal, be equipped with the fixed plate on the plate body, correspond on the fixed plate and set up a plurality of and connecting bolt assorted thread groove, it is a plurality of connecting bolt is threaded connection in a plurality of thread grooves respectively.

Through above-mentioned technical scheme, the staff can at first lift off a plurality of connecting bolt from the thread groove through the mode that the bolt was dismantled, then lift off the nut on with the threaded rod through the mode of rotating the nut, later lift off the plate body from the back shaft through the mode of extracting the threaded rod from the connecting hole to the staff can change the plate body.

Optionally, a plurality of limiting grooves are formed in the groove wall of the supporting groove, magnetic blocks are embedded in the limiting grooves respectively, a plurality of iron sheets matched with the limiting grooves are arranged on the plate body, and the iron sheets are inserted into the limiting grooves respectively and are in contact with the magnetic blocks.

Through the technical scheme, the arrangement of the magnetic block and the iron sheet has the function of limiting the position of the plate body, so that the possibility that the plate body falls off from the supporting shaft due to the loosening of the nut is reduced, and the connecting strength between the plate body and the supporting shaft is enhanced; simultaneously, when the staff is installing the plate body, magnetic path and iron sheet have and carry out the effect of pre-fixing to the plate body to the staff can be fast convenient installs the screw.

Optionally, the push plate is provided with a plurality of positioning rods, and the fixed plate is correspondingly provided with a plurality of positioning grooves matched with the positioning rods; when the positioning rods are correspondingly inserted into the positioning grooves, the connecting bolts are aligned with the thread grooves.

Through above-mentioned technical scheme, locating lever and constant head tank have the effect of instructing the location for the staff can be through the mode of pegging graft the locating lever correspondence in the constant head tank when installing the plate body, and the threaded groove with on the connecting bolt in the push pedal and the fixed plate aligns each other fast, thereby has promoted the efficiency when staff installs the plate body.

Optionally, the outer edge of the supporting shaft is provided with a plurality of supporting plates respectively, a rubber pad is arranged at one end of each supporting plate far away from the supporting shaft, and the rubber pad abuts against the plate body.

Through the technical scheme, when a worker writes on the outer edge of the plate body, the plurality of supporting plates and the rubber pads can stably support the plate body, so that the plate body is not prone to shaking or deformation under stress, and the stability of the worker in the handwriting process is improved; the rubber pad can contract when the atress and warp, has improved the laminating degree between backup pad and the plate body to the support effect of backup pad to the plate body has further been promoted.

Optionally, the one end that the rubber pad was kept away from to the backup pad is equipped with back shaft assorted arc, wear to establish and threaded connection has an installation bolt on the arc, correspond on the back shaft and seted up a plurality ofly and installation bolt assorted mounting groove, it is a plurality of installation bolt is threaded connection in a plurality of mounting grooves respectively.

Through the technical scheme, the mode that staff's accessible bolt was dismantled unloads construction bolt, then unloads the backup pad from the back shaft to the backup pad of different length can be changed as required to the staff, thereby makes the backup pad can carry out the stable support to the plate body of different length, has promoted the suitability of backup pad to the plate body of different length.

Optionally, two cleaning grooves are respectively formed in the supporting shaft, the supporting groove is located between the two cleaning grooves, two cleaning frames are arranged in the cleaning grooves, the cleaning frames are respectively connected with two cleaning rods in a penetrating mode in a rotating mode, cleaning plates are arranged on the cleaning rods, cleaning cotton is arranged on the cleaning plates and tightly abutted to the writing surface of the plate body, and a motor used for driving the cleaning rods to rotate is further arranged on the cleaning frames.

Through the technical scheme, when the cleaning is erased to the writing surface of the plate body, the worker can alternately start two cleaning rods driven by two motors to rotate, the two cleaning rods can drive the two cleaning plates to rotate to clean cotton when rotating, the cleaning plate rotates on the writing surface of the plate body to erase the writing surface of the plate body in an alternate and tight manner, so that the effect of automatically erasing the writing surface of the plate body is achieved, time and labor are saved, and the intelligent degree is further improved.

Optionally, a fixing block is arranged on the cleaning cotton, a fixing groove matched with the cleaning plate is formed in the fixing block, the cleaning plate is correspondingly inserted into the fixing groove, a plurality of fixing rods penetrate through the fixing block, a plurality of fixing holes matched with the fixing rods are correspondingly formed in the cleaning plate, slots matched with the fixing rods are formed in the groove wall, opposite to the fixing rods, of the fixing groove, and the fixing rods penetrate through the fixing holes and are inserted into the slots.

Through above-mentioned technical scheme, the staff can at first extract the inserted bar from the fixed block, then through drawing the mode that the fixed block will be extracted the clearance board from the fixed slot in, lift fixed block and clearance cotton off from the clearance board to the staff can regularly clear up or change the clearance cotton.

Optionally, an annular plate is arranged at the outer edge of the fixing rod, an iron ring is arranged on the annular plate, a magnetic ring matched with the iron ring is correspondingly embedded on the fixing block, and the iron ring and the magnetic ring are mutually abutted and adsorbed.

Through above-mentioned technical scheme, the mutual absorbent setting of magnetic ring and hoop has the effect of restriction dead lever position, has reduced the dead lever and has broken away from the possibility in the fixed slot under the effect of external force to the stability of being connected between plate body and the fixed block has further been strengthened.

Optionally, the cleaning plate is provided with a plurality of mounting rods, and a plurality of mounting holes matched with the mounting rods are correspondingly formed in the groove wall of the fixing groove; when a plurality of installation rods respectively penetrate through a plurality of installation holes, a plurality of fixing holes are respectively aligned with the slots.

Through the technical scheme, the setting of installation pole and mounting hole has the effect of instructing the location for the staff can be through corresponding the mode of pegging graft in the mounting hole with the installation pole when installing the fixed block, and a plurality of slots on a plurality of fixed orificess on the clearance board and the fixed block align fast, so that the staff can wear to establish the fixed link fast through the fixed hole and plug in the slot, fixes a position the installation to the fixed block, thereby has promoted the staff and has installed the efficiency when clearing up the cotton.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the working personnel can utilize the electric push rod to automatically adjust the pitching angle of the plate body, so that the convenience of the working personnel in the using process is improved, the pitching angle of the plate body can be adjusted by means of the electric push rod, the time and the labor are saved, and the intelligent degree is higher;

2. two clearance poles of can drive when two motors start rotate, and two clearance poles can drive two clearance boards when rotating and move the clearance cotton, support tightly in turn and rotate on the writing surface of plate body and wipe the clearance to the writing surface of plate body to reached automatic effect of wiping the clearance to the writing surface of plate body, labour saving and time saving and further improved intelligent degree.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram for embodying an electric putter according to an embodiment of the present application.

Fig. 3 is a schematic cross-sectional view illustrating a connection structure of a plate body and a support shaft according to an embodiment of the present application.

Fig. 4 is a schematic cross-sectional view illustrating a connection structure between an electric putter and a plate according to an embodiment of the present application.

Fig. 5 is a schematic cross-sectional view illustrating a connection structure between a fixing block and a cleaning plate according to an embodiment of the present application.

Reference numerals: 1. a support frame; 2. a plate body; 3. a support shaft; 4. a support groove; 5. an adjusting bracket; 6. an electric push rod; 7. a threaded rod; 8. connecting holes; 9. a nut; 10. pushing the plate; 11. a connecting bolt; 12. a fixing plate; 13. a thread groove; 14. a limiting groove; 15. a magnetic block; 16. iron sheets; 17. positioning a rod; 18. positioning a groove; 19. a support plate; 20. a rubber pad; 21. an arc-shaped plate; 22. installing a bolt; 24. cleaning the tank; 25. cleaning the rack; 26. cleaning the rod; 27. cleaning the plate; 28. cleaning cotton; 29. a motor; 30. a fixed block; 31. fixing grooves; 32. fixing the rod; 33. a fixing hole; 34. a slot; 35. an annular plate; 36. an iron ring; 37. a magnetic ring; 38. mounting a rod; 39. and (7) installing holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a construction project cost risk management system.

As shown in fig. 1 and 2, the engineering project cost risk management system includes a support frame 1 and a plate body 2, wherein the top of the support frame 1 is rotatably connected with a support shaft 3 arranged along the horizontal direction, a support groove 4 matched with the plate body 2 is formed in the outer edge of the support shaft 3, and the plate body 2 is inserted in the support groove 4 and detachably connected with the support shaft 3; still fixedly connected with alignment jig 5 on the support frame 1, articulated on the alignment jig 5 have electric putter 6, and electric putter 6 keeps away from that the one end of alignment jig 5 articulates there is push pedal 10, and push pedal 10 can be dismantled with plate body 2 and be connected. Therefore, when a worker writes or shows a picture by using the plate body 2, the worker can drive the plate body 2 to drive the supporting shaft 3 to rotate along the axis of the supporting shaft 3 by controlling the stretching mode of the electric push rod 6, so that the effect of adjusting the pitching angle of the plate body 2 is achieved; the mode of staff's accessible control electric putter 6 volume of stretching out and drawing back carries out automatically regulated to the every single move angle of plate body 2, and convenient degree and intelligent degree in having promoted the staff use are higher.

As shown in fig. 3, the end surface of the plate body 2 facing the support shaft 3 is fixedly connected with a plurality of threaded rods 7, the wall of the support groove 4 is correspondingly provided with a plurality of connecting holes 8 penetrating through the support shaft 3, the connecting holes 8 are matched with the threaded rods 7, the threaded rods 7 respectively penetrate through the connecting holes 8, the end part of each threaded rod 7 is in threaded connection with a nut 9, and the nut 9 is abutted against the outer edge of the support shaft 3; the wall of the supporting groove 4 is provided with a plurality of limiting grooves 14, the magnetic blocks 15 are embedded in the limiting grooves 14 respectively, a plurality of iron sheets 16 matched with the limiting grooves 14 are bonded on the plate bodies 2 respectively, and the iron sheets 16 are correspondingly inserted in the limiting grooves 14 respectively and are abutted and adsorbed with the magnetic blocks 15. Therefore, under the action of the nut 9, the threaded rod 7 is not easy to be separated from the connecting hole 8, and the effect of stably fixing the plate body 2 on the supporting shaft 3 is achieved; under the action of the magnetic attraction force of the magnetic block 15 and the iron sheet 16, the plate body 2 is not easy to rotate relative to the support shaft 3 under the action of external force, and the possibility that the nut 9 is loosened under the action of external force is reduced, so that the connection stability between the plate body 2 and the support shaft 3 is further enhanced.

As shown in fig. 3 and 4, the plate body 2 is fixedly connected with a fixing plate 12 on the end surface of the push plate 10, the push plate 10 is provided with a plurality of connecting bolts 11 in a penetrating manner and in threaded connection, the fixing plate 12 is correspondingly provided with a plurality of thread grooves 13 matched with the connecting bolts 11, and the push plate 10 is detachably connected on the fixing plate 12 through the mode that the connecting bolts 11 are respectively in the thread grooves 13. Therefore, the worker can remove the nut 9 from the threaded rod 7 by rotating the nut 9, then remove the plurality of connecting bolts 11 from the threaded grooves 13 by means of bolt removal, and then remove the plate body 2 from the support shaft 3 by pulling the threaded rod 7 out of the connecting hole 8, so that the worker can replace the plate body 2 as required.

As shown in fig. 4, a plurality of positioning rods 17 are fixedly connected to the end surface of the pushing plate 10 departing from the electric push rod 6, a plurality of positioning grooves 18 matched with the positioning rods 17 are correspondingly formed in the fixing plate 12, and when the plurality of positioning rods 17 are respectively correspondingly inserted into the plurality of positioning grooves 18, the plurality of connecting bolts 11 are respectively aligned with the plurality of thread grooves 13. Consequently, when needing to install plate body 2, the staff can be through corresponding the mode of pegging graft in constant head tank 18 with locating lever 17, position to push pedal 10 and electric putter 6 is fixed in advance, locating lever 17 can support tightly in constant head tank 18 under push pedal 10 and electric putter 6's action of gravity, make push pedal 10 and electric putter 6 can stably stop the state of aligning each other at connecting bolt 11 and thread groove 13, so that the staff can be fast and convenient with connecting bolt 11 threaded connection in thread groove 13, thereby convenient degree and efficiency when having promoted staff's installation plate body 2.

As shown in fig. 2, the outer edge of the supporting shaft 3 is connected with a plurality of supporting plates 19, the supporting shaft 3 is located between the plurality of supporting plates 19, the end surface, facing the supporting shaft 3, of the supporting plate 19 located on the same side is connected with an arc-shaped plate 21 matched with the outer edge of the supporting shaft 3, the arc-shaped plate 21 is penetrated and connected with a plurality of mounting bolts 22 in a threaded manner, a plurality of mounting grooves matched with the mounting bolts 22 are correspondingly formed in the supporting shaft 3, and the mounting bolts 22 are respectively connected in the mounting grooves in a threaded manner; the end of the supporting plate 19 away from the arc-shaped plate 21 is adhered with a rubber pad 20, and the rubber pad 20 is tightly pressed between the plate body 2 and the supporting plate 19. Therefore, the arrangement of the plurality of supporting plates 19 and the rubber pads 20 has the function of supporting the plate body 2, so that when workers write by using the plate body 2, the plate body 2 is not easy to shake under the action of external force, and the stability of the plate body 2 is enhanced; meanwhile, the arc-shaped plate 21 can be detached from the supporting shaft 3 by a worker in a bolt detaching mode, so that the worker can replace the supporting plate 19 after replacing the plate body 2, and the applicability of the supporting plate 19 to different specification plate bodies 2 is improved.

As shown in fig. 3, the supporting shaft 3 is provided with two cleaning grooves 24, the supporting groove 4 is located between the two cleaning grooves 24, a square cleaning frame 25 is inserted into the two cleaning grooves 24, the cleaning frame 25 is fixedly connected in the cleaning grooves 24, the cleaning frame 25 is respectively penetrated and rotatably connected with two cleaning rods 26, and the two cleaning rods 26 are respectively arranged at two ends of a diagonal line of the cleaning frame 25; one ends of the two cleaning rods 26, which are far away from the supporting shaft 3, are connected with a cleaning plate 27, the end face, which faces the plate body 2, of the cleaning plate 27 is connected with a fixed block 30, cleaning cotton 28 is bonded on the fixed block 30, and a motor 29 for driving the cleaning rods 26 to rotate is also fixedly connected on the cleaning frame 25; the two motors 29 are arranged to be activated alternately, and when the motors 29 are activated, the cleaning rod 26 is driven to move the cleaning cotton 28 against the writing surface of the plate body 2. Therefore, when the writing surface of the plate body 2 needs to be erased and cleaned, a worker can alternately start the two motors 29 to drive the two cleaning rods 26 to rotate alternately, the two cleaning rods 26 can drive the two cleaning cottons 28 to abut against the plate body 2 alternately when rotating, and the content written on the plate body 2 is erased, so that the effect of automatically erasing and cleaning the plate body 2 is achieved, manpower is saved, and the intelligent degree is further improved.

As shown in fig. 5, set up on the fixed block 30 with clearance board 27 assorted fixed slot 31, clearance board 27 corresponds and pegs graft in fixed slot 31, fixed block 30 deviates from and wears to be equipped with a plurality of dead levers 32 on the terminal surface of clearance cotton 28, correspond on the clearance board 27 and set up a plurality of fixed orifices 33 with dead lever 32 assorted, fixed slot 31 is close to and corresponds on the cell wall of clearance cotton 28 and sets up a plurality of slots 34 with dead lever 32 assorted, fixed block 30 wears to establish fixed orifices 33 and corresponds the mode of pegging graft in slot 34 through dead lever 32 and connects on clearance board 27. Therefore, the worker can remove the fixing block 30 and the cleaning cotton 28 by pulling the fixing rod 32 out of the fixing block 30 and then pulling the cleaning plate 27 out of the fixing groove 31, so that the worker can clean or replace the cleaning cotton 28 regularly.

As shown in fig. 5, an annular plate 35 is fixedly connected to the outer edge of the fixing rod 32, an iron ring 36 is embedded on the annular plate 35, and a magnetic ring 37 matched with the iron ring 36 is correspondingly embedded on the fixing block 30; when the fixing rod 32 is correspondingly inserted into the slot 34, the iron sheet 16 and the magnetic block 15 are abutted and adsorbed with each other. Therefore, under the restriction of iron sheet 16 and magnetic block 15, dead lever 32 is difficult for breaking away from in slot 34 under the effect of external force, has reduced dead lever 32 and has broken away from in slot 34 under the effect of external force, makes the fixed block 30 and the possibility of clearance board 27 alternate segregation at the clearance in-process then to strengthened the stability of being connected between clearance board 27 and the fixed block 30, so that the clearance cotton 28 on the fixed block 30 can be stable wipes off the clearance to the writing face of plate body 2.

As shown in fig. 4 and 5, the cleaning plate 27 is fixedly connected with a plurality of mounting rods 38, and the wall of the fixing groove 31 is correspondingly provided with a plurality of mounting holes 39 matched with the mounting rods 38; when the mounting rods 38 are correspondingly inserted into the mounting holes 39, the fixing holes 33 of the cleaning plate 27 are aligned with the slots 34 of the cleaning groove 24. Therefore, when installing the clearance cotton 28, the staff can align the fixing hole 33 and the slot 34 through the mode of correspondingly inserting the installation rod 38 in the installation hole 39, so that the staff can install the clearance cotton 28 quickly, and the efficiency of the staff in replacing the clearance cotton 28 is improved.

The implementation principle of the embodiment of the application is as follows: when the plate body 2 is needed to be used for writing, a worker can start the electric push rod 6 to push the plate body 2 to drive the supporting shaft 3 to rotate according to needs, the pitching angle of the plate body 2 is adjusted, convenience of the worker in the using process is improved, the pitching angle of the plate body 2 can be adjusted by means of the electric push rod 6, time and labor are saved, and the intelligent degree is high; when the cleaning needs to be erased from the writing surface of the plate body 2, the worker can alternately start the two motors 29 to drive the two cleaning rods 26 to drive the cleaning cotton 28 to tightly abut against the writing surface of the plate body 2 to move, so that the effect of automatically cleaning the writing surface of the plate body 2 is achieved, manpower is saved, and the intelligent degree is further improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.