CN112497961A

CN112497961A - Double-sided blackboard

Info

Publication number: CN112497961A
Application number: CN202011414504.XA
Authority: CN
Inventors: 霍玉鹏; 王绘娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-03-16

Abstract

The invention discloses a double-sided blackboard, which is characterized by comprising: a blackboard frame, a cleaning device and a blackboard device; a cleaning device is fixedly arranged on one side of the blackboard frame, and a blackboard device is arranged in the blackboard frame; when the blackboard is full, the gear A is driven to rotate through the remote control stepping motor A so as to drive the rotating shaft to rotate so as to drive the double-sided blackboard to move outwards, meanwhile, the double-sided blackboard is driven to rotate and turn over through the speed reduction motor, then the turned-over double-sided blackboard is assembled into a whole by returning to the initial position, and the movable baffle is returned through the return spring so as to keep the appearance of the blackboard clean and convenient for continuous use; thereby drive gear B through step motor B and rotate and drive the blackboard and wipe the pole and slide and clean the rear end face of two-sided blackboard, the blackboard is wiped the pole and is removed and wash the extrusion in the clean case at last, and the cleanness of completion blackboard that can be quick more has avoided the pollution of dust.

Description

Double-sided blackboard

Technical Field

The invention relates to the technical field of teaching aids, in particular to a double-sided blackboard.

Background

The existing blackboards used in the market are full of blackboards which are easy to write after being used on one side, and the blackboards are manually wiped up after being full of blackboards, and dust brushed down is blown away by wind, so that a large amount of irresistible dust is generated and is scattered into the space, and serious pollution is caused to the indoor space. The long-term dust suction is very unfavorable for physical and mental health of students and teachers, meanwhile, the dust is not sanitary when flying, and although a part of blackboard devices can suck dust, the structure is complex, the disassembly is difficult, and the cleaning is inconvenient. And the existing blackboard device has short service life and serious material waste, and does not accord with the national concept of energy conservation and environmental protection.

Chinese patent discloses the patent numbers: 201820441654.1, a face-changing automatic cleaning blackboard, which comprises a fixed frame and a blackboard embedded in the fixed frame; guide rails are arranged on two symmetrical inner sides of the fixed frame, and rollers matched with the guide rails are arranged at two ends of the top of the blackboard through rotating shaft sleeves; the fixed frame is provided with a movable blackboard eraser which is tightly attached to the blackboard surface. The blackboard can turn over and move on the fixed frame through the roller and the guide rail, and the blackboard is embedded into the fixed frame; the blackboard can be used by changing the surface. When the blackboard is embedded into the fixed frame, the water pump is started, and the nozzle sprays water to wet and clean the blackboard, so that the blackboard surface can be erased more cleanly without dust. And starting a motor to drive the ball screw pair to drive the movable blackboard eraser to work, and automatically erasing the handwriting on the blackboard surface. The utility model discloses a trade a self-cleaning blackboard, it is clean to erase the face environmental protection, is useful for healthily.

The study of the patents shows that the device needs manual operation when the face of the blackboard is changed, manual turning is very difficult when the blackboard is large, people are easily injured, the occupied space during turning is large, the blackboard eraser of the device cannot be cleaned, the blackboard eraser can be cleaned only by being manually opened, the blackboard is not completely cleaned after the blackboard eraser is dirty, and the device is very inconvenient.

Disclosure of Invention

Aiming at the problems, the invention provides a double-sided blackboard, when the blackboard is fully written, a gear A is driven to rotate by remotely controlling a stepping motor A so as to drive a rotating shaft to rotate so as to drive the double-sided blackboard to move outwards, meanwhile, the double-sided blackboard is driven to rotate and turn over by a speed reducing motor, then the turned-over double-sided blackboard is provided back to an initial position to be spliced into a whole, and a movable baffle is brought back by a reset spring so as to keep the appearance of the blackboard clean and convenient to continue to use; thereby drive gear B through step motor B and rotate and drive the blackboard and wipe the pole and slide and clean the rear end face of two-sided blackboard, the blackboard is wiped the pole and is removed and wash the extrusion in the clean case at last, and the cleanness of completion blackboard that can be quick more has avoided the pollution of dust.

The technical scheme adopted by the invention is as follows: a double-sided use blackboard comprising: a blackboard frame, a cleaning device and a blackboard device;

the blackboard frame include: a rear plate, a blackboard placing groove and a movable baffle plate;

the blackboard device includes: the device comprises a fixed cross bar, a double-sided blackboard, a face changing mechanism and a blackboard erasing mechanism;

the rear plate is a rectangular plate, the front end face of the rear plate is provided with a blackboard placing groove, and the front end face of the blackboard placing groove is rotatably provided with a movable baffle; the cleaning device is fixedly arranged on one side of the rear plate; the blackboard cleaning device is characterized in that one end of each fixed cross rod is fixedly connected with the side baffle of the rear plate, the other end of each fixed cross rod is fixedly connected with the inner side of the cleaning device, the upper end face of each fixed cross rod is provided with the face changing mechanism, the other end of the face changing mechanism is connected with the double-face blackboard, the double-face blackboard is arranged between the upper fixed cross rod and the lower fixed cross rod, the side face of the double-face blackboard is provided with a groove and a lug which are matched with each other, the blackboard cleaning mechanism is located behind the double-face blackboard, and the.

Preferably, the blackboard frame further includes: the side baffle, the water outlet pipe, the water discharge tank, the water leakage port and the reset spring;

the side baffle is rotatably arranged on the front end surface of the side plate of the rear plate; the water outlet pipe is arranged on the lower end surface of the lower blackboard placing groove close to the left; the water drainage groove is arranged on the blackboard placing groove below, and the left end of the water drainage groove is provided with a water leakage port which is communicated with the water outlet pipe; reset spring has a plurality of, and reset spring's one end is connected with the blackboard standing groove, and reset spring's the other end is connected with adjustable fender.

Preferably, the cleaning device comprises: the device comprises a cleaning box, an extrusion shaft, a water spraying pipe and a water inlet pipe;

the cleaning box is fixedly arranged on the front end face of the rear plate, the cleaning box is of an internal hollow structure, the extrusion shaft is rotatably arranged in the cleaning box, the cleaning box is internally and fixedly provided with a water spray pipe, and the rear side face of the water spray pipe is provided with a plurality of spray heads; the upper end of the water inlet pipe is connected with the water spray pipe, and the lower end of the water inlet pipe is connected with the external faucet.

Preferably, the surface changing mechanism of the blackboard device includes: the device comprises a speed reducing motor, a long connecting rod, an auxiliary rod, a rotating rod, a fixed rod, a connecting frame, a stepping motor A, a gear A, a belt and a rotating shaft;

the speed reducing motor is fixedly arranged at the front end of the long connecting rod, a motor shaft of the speed reducing motor is fixedly connected with the double-sided blackboard, and a rotating shaft at the rear end of the long connecting rod is rotatably connected with the front end of the rotating rod; one end of the auxiliary rod is rotatably connected with the long connecting rod, the other end of the auxiliary rod is rotatably connected with a rotating shaft of the fixed rod, the fixed rod is fixedly connected with the connecting frame, and the connecting frame is welded on the fixed cross rod; the stepping motor A is fixedly arranged on the fixed cross rod, and a motor shaft of the stepping motor A is fixedly connected with the gear A; the belt wraps the gear A; the lower end of the rotating shaft penetrates through a hole in the fixed rod to be fixedly connected with the gear A, and the upper end of the rotating shaft is fixedly connected with the rear end of the rotating rod.

Preferably, the blackboard erasing mechanism of the blackboard device includes: the blackboard eraser rod, the stepping motor B, the gear B and the rack;

the rack is arranged on the lower end face of the fixed cross rod; the blackboard erasing rod is positioned behind the double-sided blackboard, the front end face of the blackboard erasing rod is provided with a brush, the brush is in contact with the rear end face of the double-sided blackboard, the rear sliding rail of the blackboard erasing rod is slidably mounted in the sliding groove of the front end face of the fixed cross rod, the rear end face of the blackboard erasing rod is provided with a stepping motor B, the motor shaft of the stepping motor B is fixedly connected with a gear B, and the gear B is meshed with the rack.

The invention has the beneficial effects that:

(1) when the blackboard is full, the stepping motor A is controlled through remote control to drive the gear A on one side to rotate so as to drive the belt and further drive the gears A to rotate simultaneously, the gear A drives the rotating shaft to rotate so as to drive the rotating rod to rotate and further drive the double-sided blackboard to move outwards, meanwhile, the gear motor drives the double-sided blackboard to rotate and turn over, then the turned-over double-sided blackboard is assembled into a whole by returning to the initial position, and the movable baffle is driven back through the reset spring so as to keep the appearance of the blackboard clean and convenient to continue to use;

(2) thereby drive gear B through step motor B and rotate and drive the blackboard and wipe the pole and slide and clean the rear end face of two-sided blackboard, the blackboard is wiped the pole and is removed the clean incasement at last, washes the blackboard through the spray pipe water spray and wipe the pole, and the blackboard that washes clean is wiped the pole and is removed two-sided blackboard department and extrude, and the cleanness of completion blackboard that can be quick more has avoided the pollution of dust.

Drawings

Fig. 1 and 2 are schematic overall structural diagrams of the present invention.

Fig. 3 and 4 are schematic diagrams of the blackboard frame structure of the present invention.

Fig. 5 is a schematic view of a partially enlarged structure at a blackboard frame a1 of the present invention.

Fig. 6 is a schematic structural diagram of the cleaning device of the present invention.

Fig. 7, 8 and 10 are schematic structural views of the blackboard device of the present invention.

Fig. 9 is a schematic view of a part of an enlarged structure at a2 of the blackboard device of the present invention.

Fig. 11 is a schematic view of a part of an enlarged structure at a3 of the blackboard device of the present invention.

Fig. 12 is a schematic view of a part of an enlarged structure at a4 of the blackboard device of the present invention.

Reference numerals:

1-a black plate frame; 2-a cleaning device; 3-a blackboard device; 101-a back plate; 102-blackboard placement slot; 103-a movable baffle; 104-side baffle; 105-a water outlet pipe; 106-water discharge tank; 107-water leakage port; 108-a return spring; 201-a cleaning box; 202-an extrusion shaft; 203-a water spray pipe; 204-water inlet pipe; 301-fixed cross bar; 302-double-sided blackboard; 303-a gear motor; 304-long connecting rod; 305-an auxiliary rod; 306-rotating rods; 307-fixing the rod; 308-a connecting frame; 309-step motor A; 310-gear A; 311-a belt; 312-a rotating shaft; 313-blackboard eraser bar; 314-stepper motor B; 315-gear B; 316-rack.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Embodiment, as shown in fig. 1 to 12, a double-sided use blackboard includes: a blackboard frame 1, a cleaning device 2 and a blackboard device 3;

the blackboard frame 1 includes: a rear plate 101, a blackboard placing groove 102 and a movable baffle plate 103;

the blackboard device 3 includes: a fixed cross bar 301, a double-sided blackboard 302, a face changing mechanism and a blackboard erasing mechanism;

the rear plate 101 is a rectangular plate, the front end face of the rear plate 101 is provided with a blackboard placing groove 102, and the front end face of the blackboard placing groove 102 is rotatably provided with a movable baffle plate 103; the cleaning device 2 is fixedly arranged on one side of the rear plate 101; one end of the fixed cross rod 301 is fixedly connected with the side baffle of the rear plate 101, the other end of the fixed cross rod 301 is fixedly connected with the inner side of the cleaning device 2, the upper end face of the fixed cross rod 301 is provided with a face changing mechanism, the other end of the face changing mechanism is connected with the double-face blackboard 302, the double-face blackboard 302 is installed between the upper fixed cross rod and the lower fixed cross rod 301, the side face of the double-face blackboard 302 is provided with a groove and a lug which are matched with each other, the blackboard erasing mechanism is located behind the double-face blackboard 302, and the blackboard erasing mechanism is slidably installed.

In an optional implementation manner of the embodiment of the present invention, as shown in fig. 3 to 5, the blackboard frame 1 further includes: a side baffle plate 104, a water outlet pipe 105, a water discharge groove 106, a water leakage port 107 and a return spring 108;

the side baffle 104 is rotatably arranged on the front end surface of the side plate of the rear plate 101; the water outlet pipe 105 is installed on the lower end surface of the lower blackboard placing groove 102 close to the left; the water discharge groove 106 is arranged on the blackboard placing groove 102 below, the left end of the water discharge groove 106 is provided with a water leakage port 107, and the water leakage port 107 is communicated with the water outlet pipe 105; the number of the return springs 108 is several, one end of the return spring 108 is connected with the blackboard placing groove 102, and the other end of the return spring 108 is connected with the movable baffle plate 103.

In an alternative embodiment of the present invention, as shown in fig. 6, the cleaning device 2 includes: a cleaning box 201, an extrusion shaft 202, a water spray pipe 203 and a water inlet pipe 204;

the cleaning box 201 is fixedly arranged on the front end face of the rear plate 101, the cleaning box 201 is of an internal hollow structure, the extrusion shaft 202 is rotatably arranged in the cleaning box 201, the water spray pipe 203 is fixedly arranged in the cleaning box 201, and a plurality of spray heads are arranged on the rear side face of the water spray pipe 203; the upper end of the water inlet pipe 204 is connected with the water spray pipe 203, and the lower end of the water inlet pipe 204 is connected with an external faucet.

In an alternative embodiment of the present invention, as shown in fig. 7 to 12, the surface changing mechanism of the blackboard device 3 includes: a speed reduction motor 303, a long connecting rod 304, an auxiliary rod 305, a rotating rod 306, a fixing rod 307, a connecting frame 308, a stepping motor A309, a gear A310, a belt 311 and a rotating shaft 312;

the speed reducing motor 303 is fixedly arranged at the front end of the long connecting rod 304, a motor shaft of the speed reducing motor 303 is fixedly connected with the double-sided blackboard 302, and a rotating shaft at the rear end of the long connecting rod 304 is rotatably connected with the front end of the rotating rod 306; one end of the auxiliary rod 305 is rotatably connected with the long connecting rod 304, the other end of the auxiliary rod 305 is rotatably connected with a rotating shaft of the fixed rod 307, the fixed rod 307 is fixedly connected with the connecting frame 308, and the connecting frame 308 is welded on the fixed cross rod 301; the stepping motor A309 is fixedly arranged on the fixed cross rod 301, and a motor shaft of the stepping motor A309 is fixedly connected with the gear A310; belt 311 wraps gear a 310; the lower end of the rotating shaft 312 passes through a hole on the fixing rod 307 and is fixedly connected with the gear a310, and the upper end of the rotating shaft 312 is fixedly connected with the rear end of the rotating rod 306.

The blackboard erasing mechanism of the blackboard device 3 includes: a blackboard eraser rod 313, a stepping motor B314, a gear B315 and a rack 316;

the rack 316 is arranged on the lower end surface of the fixed cross bar 301; the blackboard erasing rod 313 is positioned behind the double-sided blackboard 302, a brush is arranged on the front end face of the blackboard erasing rod 313 and is in contact with the rear end face of the double-sided blackboard 302, a rear sliding rail of the blackboard erasing rod 313 is slidably mounted in a sliding groove in the front end face of the fixed cross rod 301, a stepping motor B314 is mounted on the rear end face of the blackboard erasing rod 313, a motor shaft of the stepping motor B314 is fixedly connected with a gear B315, and the gear B315 is meshed with a rack 316.

The working principle is as follows:

when the blackboard is full, the stepping motor A309 is controlled in a remote control mode to drive the gear A310 on one side to rotate so as to drive the belt 311 and further drive the gears A310 to rotate simultaneously, the gear A310 drives the rotating shaft 312 to rotate so as to drive the rotating shaft 306 to rotate, the rotating shaft 306, the auxiliary rod 305 and the long connecting rod 304 work in a coordinated mode to drive the double-sided blackboard 302 to move outwards, the movable baffle plate 103 is pushed open, the double-sided blackboard 302 is driven to rotate and turn over through the speed reducing motor 303, the turned-over double-sided blackboard 302 is then brought back to the initial position to be assembled into a whole, and the movable baffle plate 103 is brought back through the reset spring 108 so as to keep the appearance of the blackboard;

thereby it rotates to drive gear B315 through step motor B314 and drives blackboard eraser pole 313 and slide the rear end face with two-sided blackboard 302 and clean, blackboard eraser pole 313 removes in clean case 201 at last, for spray pipe 203 supplies water through inlet tube 204, spray pipe 203 sprays water and washes blackboard eraser pole 313, sewage flows to the mouth of leaking 107 department along the groove 106 that drains, flow out the slop pail through outlet pipe 105, clean blackboard eraser pole 313 removes two-sided blackboard 302 department and extrudes, the cleanness of completion blackboard that can be more quick, the pollution of dust has been avoided.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Claims

1. A double-sided use blackboard, comprising: a blackboard frame (1), a cleaning device (2) and a blackboard device (3);

the blackboard frame (1) comprises: a rear plate (101), a blackboard placing groove (102) and a movable baffle plate (103);

the blackboard device (3) comprises: the blackboard eraser comprises a fixed cross rod (301), a double-sided blackboard (302), a face changing mechanism and a blackboard erasing mechanism;

the blackboard eraser is characterized in that the rear plate (101) is a rectangular plate, a blackboard placing groove (102) is formed in the front end face of the rear plate (101), and a movable baffle (103) is rotatably mounted on the front end face of the blackboard placing groove (102); the cleaning device (2) is fixedly arranged on one side of the rear plate (101); the one end of fixed horizontal pole (301) and the side shield fixed connection of backplate (101), the other end of fixed horizontal pole (301) and the inboard fixed connection of cleaning device (2), the up end of fixed horizontal pole (301) is installed and is traded a mechanism, the other end and the two-sided blackboard (302) of trading a mechanism are connected, two-sided blackboard (302) are installed between two upper and lower fixed horizontal poles (301), the side of two-sided blackboard (302) is equipped with recess and the lug of mutually supporting, it is located two-sided blackboard (302) rear to wipe blackboard mechanism, it is between two upper and lower fixed horizontal poles (301) to wipe blackboard mechanism slidable mounting.

2. A double-sided blackboard according to claim 1, characterised in that the blackboard frame (1) further comprises: the side baffle (104), the water outlet pipe (105), the water discharge groove (106), the water discharge opening (107) and the reset spring (108);

the side baffle (104) is rotatably arranged on the front end surface of the side plate of the rear plate (101); the water outlet pipe (105) is arranged on the lower end surface of the lower blackboard placing groove (102) close to the left; the water discharge groove (106) is arranged on the lower blackboard placing groove (102), the left end of the water discharge groove (106) is provided with a water leakage port (17), and the water leakage port (107) is communicated with the water outlet pipe (105); the number of the return springs (108) is several, one end of each return spring (108) is connected with the blackboard placing groove (102), and the other end of each return spring (108) is connected with the movable baffle (103).

3. A double-sided blackboard according to claim 1, characterised in that the cleaning means (2) comprise: the device comprises a cleaning box (201), an extrusion shaft (202), a water spray pipe (203) and a water inlet pipe (204);

the cleaning box (201) is fixedly arranged on the front end face of the rear plate (101), the cleaning box (201) is of an internal hollow structure, the extrusion shaft (202) is rotatably arranged in the cleaning box (201), the water spray pipe (203) is fixedly arranged in the cleaning box (201), and a plurality of spray heads are arranged on the rear side face of the water spray pipe (203); the upper end of the water inlet pipe (204) is connected with the water spraying pipe (203), and the lower end of the water inlet pipe (204) is connected with an external faucet.

4. A double-sided blackboard according to claim 1, characterised in that the surface changing mechanism of the blackboard device (3) comprises: the device comprises a speed reducing motor (303), a long connecting rod (304), an auxiliary rod (305), a rotating rod (306), a fixing rod (307), a connecting frame (308), a stepping motor A (309), a gear A (310), a belt (311) and a rotating shaft (312);

the speed reducing motor (303) is fixedly arranged at the front end of the long connecting rod (304), a motor shaft of the speed reducing motor (303) is fixedly connected with the double-sided blackboard (302), and a rotating shaft at the rear end of the long connecting rod (304) is rotatably connected with the front end of the rotating rod (306); one end of the auxiliary rod (305) is rotatably connected with the long connecting rod (304), the other end of the auxiliary rod (305) is rotatably connected with a rotating shaft of the fixed rod (307), the fixed rod (307) is fixedly connected with the connecting frame (308), and the connecting frame (308) is welded on the fixed cross rod (301); the stepping motor A (309) is fixedly arranged on the fixed cross rod (301), and a motor shaft of the stepping motor A (309) is fixedly connected with the gear A (310); the belt (311) covers the gear A (310); the lower end of the rotating shaft (312) penetrates through a hole in the fixing rod (307) to be fixedly connected with the gear A (310), and the upper end of the rotating shaft (312) is fixedly connected with the rear end of the rotating rod (306).

5. A blackboard for double-sided use according to claim 2, characterised in that the blackboard erasing mechanism of the blackboard device (3) comprises: a blackboard erasing rod (313), a stepping motor B (314), a gear B (315) and a rack (316);

the rack (316) is arranged on the lower end surface of the fixed cross rod (301); the blackboard erasing rod (313) is positioned behind the double-faced blackboard (302), the front end face of the blackboard erasing rod (313) is provided with a brush, the brush is in contact with the rear end face of the double-faced blackboard (302), the rear sliding rail of the blackboard erasing rod (313) is slidably mounted in the sliding groove of the front end face of the fixed cross rod (301), the rear end face of the blackboard erasing rod (313) is provided with the stepping motor B (314), the motor shaft of the stepping motor B (314) is fixedly connected with the gear B (315), and the gear B (315) is meshed with the rack (316).