CN109397937A - A kind of lift project cost workbench - Google Patents
A kind of lift project cost workbench Download PDFInfo
- Publication number
- CN109397937A CN109397937A CN201811284981.1A CN201811284981A CN109397937A CN 109397937 A CN109397937 A CN 109397937A CN 201811284981 A CN201811284981 A CN 201811284981A CN 109397937 A CN109397937 A CN 109397937A
- Authority
- CN
- China
- Prior art keywords
- wiping
- dust
- sliding seat
- sliding
- display board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention belongs to project cost apparatus fields, specifically disclose a kind of lift project cost workbench, including table top, table top is equipped with vertical display board, display board is connected with Wiping mechanism, Wiping mechanism includes the lateral sliding rail that vertical sliding is connected on table top, it is slid laterally on sliding rail and is connected with sliding seat, and sliding seat is connected with the sliding actuator for driving sliding seat to slide on the slide rail, drive shaft is rotatably connected on sliding seat, drive shaft is fixed with rotating bar, rotating bar both ends are connected with wiping brush, the compressing member for driving wiping brush to move close to display board is additionally provided with below sliding seat, sliding seat is fixedly arranged above the scraper plate that can scrape the wiping surface of wiping brush.The problem of display board on existing project cost workbench chalk dust in manual wipping can form block on the sponge of blackboard eraser, the wiping effect of blackboard eraser is caused to be deteriorated can solve using the present invention.
Description
Technical field
The present invention relates to project cost apparatus fields, and in particular to a kind of lift project cost workbench.
Background technique
Project cost, which refers to, carries out the full payment that a certain engineering construction is spent.Project cost is a generalized concept,
In different occasions, project cost meaning is different.Due to research object difference, project cost has construction engineering cost, individual event work
Journey cost, cost of unit engineering and price construction and installation etc..Project cost is the foundation of project decision, is project finance
The important evidence of analysis and economic evaluation is the foundation for formulating investment plan and controlled investment, evaluates the index of investment results.
Cost teacher often uses lift project cost dedicated when working, to meet the work people of different heights
The need of work of member, is usually equipped with one piece of vertical display board on the table, and staff can be with chalk on blackboard
It is write, facilitates everybody to have a meeting and assemble viewing discussion, this display board generallys use blackboard for teaching common in the art,
Need frequently to wipe display board when in use, the writing of Lai Jinhang writing on the blackboard is by staff's handle manually when wiping display board
It holds Wiper plate to be wiped, the amount of labour is big.Usual Wiper plate uses the blackboard eraser of common sponge type, since blackboard eraser is to push against
It is wiped on display board, after repeatedly wiping, chalk dust can form block on the sponge of blackboard eraser, lead to blackboard eraser
Wiping effect is deteriorated, and since chalk dust can enter in the hole of sponge, sponge laxity itself is caused to be deteriorated, blackboard eraser
Wiping effect can also be deteriorated.
Summary of the invention
The purpose of the present invention is to provide a kind of lift project cost workbench, to solve existing project cost work
Display board on the platform chalk dust in manual wipping can form block on the sponge of blackboard eraser, and the wiping effect of blackboard eraser is caused to become
The problem of difference.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of lift project cost workbench, including table top, table top are equipped with vertical display board, and display board is connected with
Wiping mechanism, Wiping mechanism include the lateral sliding rail that vertical sliding is connected on table top, slide laterally on sliding rail and are connected with cunning
Dynamic seat, and sliding seat is connected with the sliding actuator for driving sliding seat to slide on the slide rail, is rotatably connected to drive on sliding seat
Moving axis, drive shaft are fixed with rotating bar, and rotating bar both ends are connected with wiping brush, are additionally provided with below sliding seat for driving wiping brush
Close to the compressing member of display board movement, sliding seat is fixedly arranged above the scraper plate that can scrape the wiping surface of wiping brush.
The principle of this programme is:
Wiping mechanism is used to wipe the chalk writing on display board, and the sliding rail in Wiping mechanism is used to support sliding seat, sliding
For dynamic actuator for driving sliding part to slide laterally on the slide rail, sliding seat is used to support drive shaft, and whens drive shaft turns is used for
Rotating bar is driven to rotate 180 degree, so that the wiping brush at rotating bar both ends exchanges position, the wiping brush being below
It is moved under the action of compressing member close to display board, so that the wiping brush being below pushes against display board, when sliding seat is in sliding rail
When upper transverse movement, two wiping brushs is driven to move laterally together, the wiping brush being below is by the chalk writing on display board
Wiped clean.Wiping brush is after wiping after a period of time, and chalk dust is due to the squeezing action meeting between wiping brush and display board
Form block on wiping brush, will affect subsequent wiping effect, during two wiping brushs convert position, when chalk dust knot
When the wiping brush of block is moved at scraper plate, wiping brush movement can make the scraper plate being fixed on sliding seat scrape the chalk dust of agglomeration
Under.
Following technical effect can be reached using this programme:
It is slid laterally on the slide rail by sliding seat, cooperates vertical motion of the sliding rail on table top, can make on sliding seat
Wiping brush pushes against display board movement, so that the chalk writing wiped clean on display board without manual wipe, and is passed through two
Block wiping scrubbing brush stream wiped, and during two pieces of wiping brushs exchange position, can pass through scraper plate will agglomerate on wiping brush
Chalk dust strikes off.
Further, it is fixed with dust collection slot at the top of sliding seat, scraper plate is fixed in dust collection slot.The powder that scraper plate scrapes
Ash can realize collection in dust collection slot, avoid dust from directly falling and impact to staff.
Further, dust being additionally provided with above sliding seat and beaing part, it includes being rotatably connected on sliding seat that dust, which beats part,
Vertical beats axis, beat be fixed on axis can hit wiping brush beat bar, beat bar and be made of elastic material, beat bar
Free end is equipped with pendulum.During the wiping brush of lower section wipes display board, dust beats part and can strike off to top
The wiping brush of the chalk dust of agglomeration is beaten, and the chalk dust in the sponge hole of wiping brush is tapped to come, avoids sponge hole
Cause sponge not loose enough and wiping effect decline full of chalk dust in gap, beats the concrete mode of wiping brush to beat axis rotation
The pendulum intermittence for beaing bar free end with dynamic elasticity hits wiping brush, to generate the effect of beaing to wiping brush.
Further, dust collection trench bottom offers through-hole, beats axis across through-hole, through-hole is communicated with dust gathering arrester, dust
Dust absorbing part is equipped in cover, dust absorbing part includes being fixed on the negative pressure blade beaten on axis, and dust gathering arrester is communicated with dust receipts
Header.During beaing wiping brush, since chalk dust is lighter, dust from flying can be led to the problem of, was rotated when beaing axis
Cheng Zhongneng drives the rotation of negative pressure blade, to generate negative pressure in dust gathering arrester, the dust in dust collection slot is sucked dust gathering arrester
It is interior, the problem of so as to avoid dust from flying.
Further, wiping brush is slidably connected at rotation boom end, and the glide direction of wiping brush is the axial direction along drive shaft,
Also practice flexible part between wiping brush and rotation boom end.When compressing member acts on the wiping brush of lower section, underlying wiping
It wipes brush and is pushed against display board by the extruding of compressing member, elastic component is compressed, and the wiping brush of top is not affected by compressing member
It squeezes and is separated under the action of the elastic member with display board, since the wiping brush of top is separated with display board, thus scraper plate strikes off
The dust of agglomeration and when beaing part and beaing wiping brush, dust can smoothly be fallen in the gap between wiping brush and display board.
Further, compressing member includes the pressure plate being fixedly connected with the sliding seat, and pressure plate is equipped with and can offset with wiping brush
Inclined-plane.When two wiping brushs exchange position is realized in rotating bar rotation, when underlying wiping brush with it is oblique on pressure plate
After face contact, rotating bar is continued to rotate, and underlying wiping brush is automatic close to display board under the action of inclined-plane, without additional
Power make underlying wiping brush close to display board.
Further, dust scattering unit is additionally provided in dust collection slot, dust scattering unit includes being rotatably connected on dust collection
Axis is broken up in groove sidewall, axis and drive shaft is broken up and is driven by belt, break up to be fixed on axis and break up bar, breaks up bar positioned at scraping
Below plate.Since the dust that scraper plate strikes off is bulk, blocky dust is not easy by the negative pressure sucking in dust gathering arrester, when drive shaft turns
It can be driven when dynamic and break up axis rotation, so that block-like dust is broken up in the bar rotation of breaing up broken up on axis, the powder after breaing up
Dirt is easier to be inhaled into dust gathering arrester.
Detailed description of the invention
Fig. 1 is the main view of the embodiment of the present invention;
Fig. 2 is the enlarged drawing of part A in Fig. 1;
Fig. 3 is the left view of two wiping brushs and display board in Fig. 2;
Fig. 4 is the top view of pressure plate in Fig. 2.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: table top 1, support rod 100, sliding actuator 2, mounting base 3, fixing axle
4, fixed pulley 5, rope 6, display board 7, dust fall slot 70, sliding rail 8, rack gear 9, sliding seat 10, connecting rod 11, pressure plate 12, inclined-plane
120, wiping brush 13, iron block 131, sponge 132, drive shaft 14, dust collecting box 15, fixed column 16, pipeline 17, gear 18, strike
Spooling 19, negative pressure blade 21, pendulum 22, dust collection slot 23, beats bar 24, scraper plate 25, breaks up axis 26, breaks up dust gathering arrester 20
Bar 27, belt 28, rotating bar 29.
As depicted in figs. 1 and 2, the lift project cost workbench of the present embodiment, including table top 1,1 bottom of table top connect
There is vertical support rod 100, support rod 100 is electric telescopic rod, is equipped with vertical display board 7 at the top of table top 1, display board 7 is adopted
With common blackboard for teaching, staff can use chalk-writing writing on the blackboard on display board 7, facilitate everybody to have a meeting and assemble viewing
It discusses, 7 bottom of display board is equipped with a dust fall slot 70 and is used to collect the chalk dust fallen when writing writing on the blackboard on display board 7.
Display board 7 is connected with Wiping mechanism, and Wiping mechanism includes the two sliding actuators 2 of installation on the playing surface 1, and sliding is driven
Moving part 2 is also electric telescopic rod, and two sliding actuators 2 are located at 7 arranged on left and right sides of display board, is slided solid at the top of actuator 2
Surely there is mounting base 3, lateral sliding rail 8 is fixed between mounting base 3, is slid laterally on sliding rail 8 and is connected with sliding seat 10, mounting base
It is rotatably connected to vertical fixing axle 4 on 3, fixed pulley 5 is respectively and fixedly provided in fixing axle 4, tensioning has rope on two fixed pulleys 5
6, and rope 6 is fixedly connected with sliding seat 10, and a wiping motor (not shown) is also equipped in the mounting base 3 on right side and is used
In driving the fixing axle 4 on right side to rotate, the transverse movement on sliding rail 8 of sliding seat 10 is pulled by rope 6 when fixing axle 4 rotates.
It is rotatably connected to a hollow drive shaft 14 on sliding seat 10, one is equipped in drive shaft 14 and is consolidated with sliding seat 10
Surely the fixed column 16 connected is also equipped with a conversion motor (not shown) on sliding seat 10 for driving 14 turns of drive shaft
It is dynamic, rotating bar 29 is fixed in drive shaft 14,29 both ends of rotating bar are connected with wiping brush 13, wiping brush 13 and 29 end of rotating bar
Specific connection type as shown in figure 3, wiping brush 13 use common blackboard brush, including the iron block 131 being fixedly connected and sponge
132, for sponge 132 towards display board 7, iron block 131, which slides laterally, is connected to 29 end of rotating bar, and iron block 131 and rotating bar 29
End is also connected with spring.The compressing member for driving wiping brush 13 to move close to display board 7 is additionally provided with below sliding seat 10, in conjunction with
Shown in Fig. 4, compressing member includes passing through the pressure plate 12 that a connecting rod 11 is fixedly connected with fixed column 16, and pressure plate 12 is equipped with energy
The inclined-plane 120 to offset with the iron block 131 of wiping brush 13.
Again as shown in Fig. 2, being fixed with dust collection slot 23 at the top of sliding seat 10, it is fixed with one piece in dust collection slot 23 and scrapes
Plate 25, scraper plate 25 are located on the motion profile of wiping brush 13, and dust scattering unit, dust scattering unit are additionally provided in dust collection slot 23
Axis 26 is broken up including being rotatably connected on 23 side wall of dust collection slot, axis 26 is broken up and is driven with drive shaft 14 by belt 28,
It breaks up to be fixed on axis 26 and breaks up bar 27, break up bar 27 and be located at 25 lower section of scraper plate.The rack gear 9 of a transverse direction is fixed on sliding rail 8,
The left side of sliding seat 10 be rotatably connected to one it is vertical beat axis 19, beat axis 19 and engaged with rack gear 9, dust collection slot 23
Bottom offers through-hole, beats axis 19 across through-hole, beats and be fixed with beaing for the wiping brush 13 that can hit top at the top of axis 19
Bar 24 is beaten bar 24 and is made of elastic material, beats 24 free end of bar equipped with pendulum 22.23 bottom of dust collection slot is fixed with
One dust gathering arrester 20, dust gathering arrester 20 is connected to by the through-hole on dust collection slot 23 with dust collection slot 23, in dust gathering arrester 20
It beats and is fixed with negative pressure blade 21 on axis 19, dust gathering arrester 20 is also communicated with dust collecting box 15 by pipeline 17.
Wiped that detailed process is as follows to display board 7 of the invention: starting wiping motor, wiping motor drive fixed sliding
Wheel 5 rotates, and the rope 6 being tensioned on fixed pulley 5 drives the transverse reciprocating on sliding rail 8 of sliding seat 10 to slide, and is located on sliding seat 10
The wiping brush 13 of lower section pushes against display board 7 and slides laterally, so that the wiping brush 13 wipes the chalk writing on display board 7
Only, after sliding seat 10 slides laterally one back and forth, two sliding 2 output rods of actuator shorten, and sliding rail 8 is driven to move downward one
Section distance, wiping motor continue that wiping brush 13 is driven to wipe display board 7.
When underlying wiping brush 13 is after wiping after a period of time, chalk dust is due to wiping brush 13 and display board 7
Between squeezing action can form block on wiping brush 13, will affect subsequent wiping effect, at this time conversion motor start, conversion
Motor drives drive shaft 14 to rotate counterclockwise on sliding seat 10, and drive shaft 14 drives rotating bar 29 to rotate, and rotating bar 29 drives
Two wiping brushs 13 gradually convert position, and the wiping brush 13 being located above is behind the inclined-plane 120 of contact pressure plate 12, in the wiping
Brush 13 continues in motion process, and inclined-plane 120 makes the wiping brush 13 move closer to display board 7, finally pushes against display board 7;It is located at
The wiping brush 13 of lower section is progressively disengaged with the inclined-plane 120 of pressure plate 12, and the wiping brush 13 is de- with display board 7 under the action of the spring
From no longer compression display board 7 continues the mistake of movement in the wiping brush 13 after the wiping brush 13, which is moved to, to be contacted with scraper plate 25
Cheng Zhong, scraper plate 25 scrape caked chalk dust on the sponge 132 of the wiping brush 13, and the blocky chalk dust scraped falls into dust
In collecting tank 23, avoids the chalk dust to agglomerate on wiping brush 13 from influencing subsequent wiping effect, rotated counterclockwise in drive shaft 14
In the process, drive shaft 14 breaks up the rotation of axis 26 by the drive of belt 28, breaks up the drive of axis 26 and breaks up the rotation of bar 27, breaks up 27 turns of bar
The blocky chalk dust for scraping scraper plate 25 when dynamic is broken up.
After two 13 positions of wiping brush convert, be now placed in lower section wiping brush 13 with sliding seat 10 in sliding rail 8
In upper transverse movement, continue to wipe display board 7, during sliding seat 10 slides laterally, drive on sliding seat 10
Gear 18 rolled on the rack gear 9 on sliding rail 8, gear 18 drive beats axis 19 rotation, beat and beat 24 turns of bar on axis 19
It is dynamic, it is intermittent to beat to being located above the wiping brush 13 for having struck off the chalk dust of agglomeration, by the sponge 132 of wiping brush 13
Chalk dust in hole, which taps, to be come, and avoids causing sponge 132 not loose enough in 132 hole of sponge full of chalk dust and wiping effect
The problem of fruit declines.It beats the dust to get off to fall into dust collection slot 23, drive shaft 14 also drives negative pressure blade in rotation
21 rotations, generate negative pressure in dust gathering arrester 20, by the dust sucking dust collecting box 15 in dust collection slot 23, avoid because striking
The problem of beating dust from flying caused by wiping brush 13.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (7)
1. a kind of lift project cost workbench, including table top, the table top is equipped with vertical display board, and feature exists
In: the display board is connected with Wiping mechanism, and the Wiping mechanism includes the lateral cunning that vertical sliding is connected on the table top
Rail slides laterally on the sliding rail and is connected with sliding seat, and sliding seat is connected with the cunning for driving sliding seat to slide on the slide rail
Actuator is moved, is rotatably connected to drive shaft on the sliding seat, the drive shaft is fixed with rotating bar, and the rotating bar both ends are equal
It is connected with wiping brush, the compressing member for driving wiping brush to move close to display board, the sliding are additionally provided with below the sliding seat
Seat is fixedly arranged above the scraper plate that can scrape the wiping surface of wiping brush.
2. a kind of lift project cost workbench according to claim 1, it is characterised in that: at the top of the sliding seat
It is fixed with dust collection slot, the scraper plate is fixed in dust collection slot.
3. a kind of lift project cost workbench according to claim 2, it is characterised in that: above the sliding seat
It is additionally provided with dust and beats part, it includes that be rotatably connected on sliding seat vertical beats axis that the dust, which beats part, described to beat
The bar that beats that can hit wiping brush is fixed on axis, the bar that beats is made of elastic material, is beaten bar free end and is equipped with pendulum
Hammer.
4. a kind of lift project cost workbench according to claim 3, it is characterised in that: the dust collection slot
Bottom offers through-hole, and for the axis that beats across the through-hole, through-hole is communicated with dust gathering arrester, is equipped with dust in the dust gathering arrester and inhales
Addressee, the dust absorbing part include being fixed on the negative pressure blade beaten on axis, and dust gathering arrester is communicated with dust collecting box.
5. a kind of lift project cost workbench according to claim 4, it is characterised in that: the wiping brush is sliding
Dynamic to be connected to rotation boom end, the glide direction of wiping brush is the axial direction along drive shaft, between wiping brush and rotation boom end also
Practice flexible part.
6. a kind of lift project cost workbench according to claim 1, it is characterised in that: the compressing member includes
The pressure plate being fixedly connected with the sliding seat, the pressure plate are equipped with the inclined-plane that can be offseted with wiping brush.
7. a kind of lift project cost workbench according to claim 5, it is characterised in that: the dust collection slot
It is inside additionally provided with dust scattering unit, the dust scattering unit includes the axis of breaing up being rotatably connected in dust collection groove sidewall, described
Axis and drive shaft is broken up to be driven by belt, it is described break up to be fixed on axis break up bar, the bar of breaing up is located at scraper plate lower section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811284981.1A CN109397937B (en) | 2018-10-31 | 2018-10-31 | Over-and-under type workstation for engineering cost |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811284981.1A CN109397937B (en) | 2018-10-31 | 2018-10-31 | Over-and-under type workstation for engineering cost |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109397937A true CN109397937A (en) | 2019-03-01 |
CN109397937B CN109397937B (en) | 2020-12-29 |
Family
ID=65470810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811284981.1A Active CN109397937B (en) | 2018-10-31 | 2018-10-31 | Over-and-under type workstation for engineering cost |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109397937B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111895762A (en) * | 2020-08-21 | 2020-11-06 | 安徽鑫泰药业有限公司 | Wild chrysanthemum flower drying process |
CN113400846A (en) * | 2021-05-28 | 2021-09-17 | 深圳市华立诺显示技术有限公司 | Erasing device of electronic whiteboard |
KR102415034B1 (en) * | 2021-10-01 | 2022-06-29 | 임규창 | working table |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203844490U (en) * | 2014-03-17 | 2014-09-24 | 成都理工大学 | Dustproof blackboard cleaning apparatus |
CN104325821A (en) * | 2014-11-10 | 2015-02-04 | 潍坊学院 | Pressure-adjustable full-automatic dust-collection blackboard erasing device |
CN204160973U (en) * | 2014-08-28 | 2015-02-18 | 胡余进 | A kind of rotating blackboard eraser |
CN204451693U (en) * | 2014-12-04 | 2015-07-08 | 马振雄 | Rain brush type blackboard |
CN107175241A (en) * | 2017-05-26 | 2017-09-19 | 东台银信钢结构工程有限公司 | A kind of environmentally friendly cleaning plant for blackboard eraser chalk dust |
CN107951201A (en) * | 2017-11-22 | 2018-04-24 | 周远桂 | A kind of costing engineering budget workbench with displaying function |
CN108263127A (en) * | 2018-01-22 | 2018-07-10 | 郑嘉禾 | A kind of multifunction speech entertaining blackboard |
CN108340715A (en) * | 2018-01-30 | 2018-07-31 | 李泽霖 | It is a kind of can be to electronic blackboard that blackboard panel is back and forth wiped |
CN207697348U (en) * | 2017-09-26 | 2018-08-07 | 四川交通职业技术学院 | Swing type automatic blackboard cleaning device |
CN207790116U (en) * | 2018-01-01 | 2018-08-31 | 天津三合科技发展有限公司 | A kind of blackboard dust absorbing device |
CN208021058U (en) * | 2018-05-24 | 2018-10-30 | 尹瑞乾 | A kind of windshield wiper type automatic-cleaning backboard |
-
2018
- 2018-10-31 CN CN201811284981.1A patent/CN109397937B/en active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203844490U (en) * | 2014-03-17 | 2014-09-24 | 成都理工大学 | Dustproof blackboard cleaning apparatus |
CN204160973U (en) * | 2014-08-28 | 2015-02-18 | 胡余进 | A kind of rotating blackboard eraser |
CN104325821A (en) * | 2014-11-10 | 2015-02-04 | 潍坊学院 | Pressure-adjustable full-automatic dust-collection blackboard erasing device |
CN204451693U (en) * | 2014-12-04 | 2015-07-08 | 马振雄 | Rain brush type blackboard |
CN107175241A (en) * | 2017-05-26 | 2017-09-19 | 东台银信钢结构工程有限公司 | A kind of environmentally friendly cleaning plant for blackboard eraser chalk dust |
CN207697348U (en) * | 2017-09-26 | 2018-08-07 | 四川交通职业技术学院 | Swing type automatic blackboard cleaning device |
CN107951201A (en) * | 2017-11-22 | 2018-04-24 | 周远桂 | A kind of costing engineering budget workbench with displaying function |
CN207790116U (en) * | 2018-01-01 | 2018-08-31 | 天津三合科技发展有限公司 | A kind of blackboard dust absorbing device |
CN108263127A (en) * | 2018-01-22 | 2018-07-10 | 郑嘉禾 | A kind of multifunction speech entertaining blackboard |
CN108340715A (en) * | 2018-01-30 | 2018-07-31 | 李泽霖 | It is a kind of can be to electronic blackboard that blackboard panel is back and forth wiped |
CN208021058U (en) * | 2018-05-24 | 2018-10-30 | 尹瑞乾 | A kind of windshield wiper type automatic-cleaning backboard |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111895762A (en) * | 2020-08-21 | 2020-11-06 | 安徽鑫泰药业有限公司 | Wild chrysanthemum flower drying process |
CN113400846A (en) * | 2021-05-28 | 2021-09-17 | 深圳市华立诺显示技术有限公司 | Erasing device of electronic whiteboard |
KR102415034B1 (en) * | 2021-10-01 | 2022-06-29 | 임규창 | working table |
Also Published As
Publication number | Publication date |
---|---|
CN109397937B (en) | 2020-12-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109397937A (en) | A kind of lift project cost workbench | |
CN203157522U (en) | Dust collection blackboard eraser | |
CN112536256B (en) | Plank surface cement clean-up equipment | |
CN207502299U (en) | A kind of automatic cleaning pressure testing machine | |
CN107774601B (en) | Dust-free cleaning device for blackboard eraser | |
CN207597750U (en) | One kind is convenient for cleaning type stair | |
CN110821201B (en) | Wall printing advertisement scraping device | |
CN210816342U (en) | A clearance mechanism for mobility apparatus | |
CN209450456U (en) | Automatically the mopping device for sweeping all-in-one machine is dragged | |
CN113263855B (en) | Vocational skill training is with supplementary teaching equipment | |
CN115635377A (en) | Putty burnishing machine that building engineering used | |
CN214906355U (en) | Door and window with cleaning function | |
CN112246819A (en) | Interactive intelligent accounting teaching equipment | |
CN211416773U (en) | Automatic blackboard cleaning machine | |
CN112895777A (en) | Blackboard eraser capable of intelligently erasing and improving teaching efficiency | |
CN211592017U (en) | Dustless blackboard eraser | |
CN113565472A (en) | Marine oil and gas development keeps off frame with being convenient for collect waste combustion products | |
CN203713360U (en) | Device for automatically cleaning chalk dust | |
CN214984499U (en) | Rotary dust-absorbing blackboard eraser | |
CN208262035U (en) | A kind of Xi Lu mechanism of for transformer scolding tin | |
CN214873847U (en) | Multifunctional blackboard convenient to clean | |
CN219576250U (en) | On-site control cabinet | |
CN214847287U (en) | Marketing specialty is with teaching board | |
CN209649892U (en) | Dust-sucking eraser device | |
CN220704399U (en) | Subway station wall-separating ditch cleaning device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |