CN220482945U

CN220482945U - Universal blackboard

Info

Publication number: CN220482945U
Application number: CN202321833674.0U
Authority: CN
Inventors: 马轶男; 王腊娟; 黄妍
Original assignee: ZHANGJIAKOU UNIVERSITY
Current assignee: ZHANGJIAKOU UNIVERSITY
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-02-13
Anticipated expiration: 2033-07-13

Abstract

The utility model discloses a general blackboard, comprising: a blackboard body; the mounting plate is fixedly arranged on the left side or the right side of the blackboard body; the mounting seat is arranged on the mounting plate in a vertical sliding manner and is fixed through a locking piece; the four-wire grid ruler is rotatably arranged on the mounting seat and is provided with a first state and a second state, wherein the first state is vertical to the mounting seat, the second state is horizontal to the mounting seat, and when the four-wire grid ruler is positioned in the second state, the four-wire grid ruler is used as a template to draw pinyin four-wire grids. The universal blackboard provided by the utility model can be used for meeting the teaching of the pinyin grid-occupation writing standard, effectively improving the universality of the blackboard and meeting the teaching blackboard writing requirements of teachers in various departments.

Description

Universal blackboard

Technical Field

The utility model relates to the field of teaching equipment. More particularly, the present utility model relates to a universal blackboard.

Background

The blackboard is a necessary device for teaching in classroom, and a teacher can conduct blackboard writing on the blackboard to explain and demonstrate the contents of the textbook. Typically, only one blackboard is installed in one classroom, and therefore, the blackboard must meet the teaching requirements of various disciplines. Aiming at the specificity of Chinese pinyin teaching, a teacher firstly draws four-line grids on a blackboard and then carries out pinyin grid-occupation writing standard teaching, but the traditional blackboard, such as CN214647161U, discloses a primary school Chinese pinyin teaching board which completes pinyin grid-occupation writing standard teaching by arranging a pinyin column on a first blackboard, but for other subjects, the first blackboard cannot be used, so that the universality of the blackboard is poor.

Disclosure of Invention

It is an object of the present utility model to provide a versatile blackboard which solves the above-mentioned problems.

To achieve the objects and other advantages and in accordance with the purpose of the utility model, there is provided a general type blackboard comprising: a blackboard body; the mounting plate is fixedly arranged on the left side or the right side of the blackboard body; the mounting seat is arranged on the mounting plate in a vertical sliding manner and is fixed through a locking piece; the four-wire grid ruler is rotatably arranged on the mounting seat and is provided with a first state and a second state, wherein the first state is vertical to the mounting seat, the second state is horizontal to the mounting seat, and when the four-wire grid ruler is positioned in the second state, the four-wire grid ruler is used as a template to draw pinyin four-wire grids.

Preferably, a general blackboard, be equipped with the slide on the mounting panel along its direction of height, the mount pad include with the relative first connecting portion of mounting panel and protrusion the second connecting portion that the mounting panel set up, be equipped with on the first connecting portion with slide looks adaptation's slider, the second connecting portion is embedded to be equipped with four-wire check chi.

Preferably, the locking member is disposed below the first connecting portion, and includes a locking box fixedly connected to the bottom surface of the first connecting portion, a threaded through hole is formed on one side of the locking box away from the mounting plate, and a hole opposite to the threaded through hole is formed on the other opposite side of the locking box, and the size of the hole is larger than that of the threaded through hole; the locking screw rod penetrates through the locking box and is in threaded connection with the threaded through hole; the hand-screwed nut is arranged outside the locking box and is fixedly connected with one end of the locking screw far away from the mounting plate; the locking plate is fixedly arranged at the other end of the locking screw rod, is parallel to the mounting plate and is smaller than the size of the opening.

Preferably, the first connecting portion is hollow, the top surface and the side surface close to the mounting plate are all open, one end of the four-wire ruler extends into the first connecting portion and is rotatably connected with two side walls of the first connecting portion, which are parallel to the mounting plate.

Preferably, a general blackboard, the one end of four-wire lattice chi have set firmly the connecting axle, the both ends of connecting axle respectively with the both sides wall rotation of second connecting portion parallel with the mounting panel is connected, keep away from on the connecting axle the one end of first connecting portion has set firmly first gear, the below of connecting axle is equipped with rather than parallel gear shaft, the both ends of gear shaft respectively with the both sides wall rotation of second connecting portion parallel with the mounting panel is connected, set firmly the second gear on the gear shaft, the second gear with first gear engagement, the bottom surface of second connecting portion is followed the length direction slip of blackboard body is equipped with the rack, the rack with second gear engagement, the one end that is close to of rack the blackboard body has set firmly the stopper, the stopper sets up to work as when four-wire lattice chi is located the second state, the stopper with four-wire lattice chi butt.

Preferably, an inverted T-shaped chute is formed in the bottom of the second connecting portion along the length direction of the blackboard body, the rack is slidably disposed in the inverted T-shaped chute, and the lower end of the second gear extends into the inverted T-shaped chute and is meshed with the rack.

Preferably, the bottom surface of the inverted T-shaped sliding groove is far away from one side of the mounting plate, a limiting sliding groove is formed in the length direction of the blackboard body, and a limiting sliding block matched with the limiting sliding groove is fixedly arranged on the bottom surface of the rack.

The utility model at least comprises the following beneficial effects:

according to the utility model, the four-wire ruler is arranged on the left side or the right side of the blackboard body through the mounting seat and the mounting plate, the four-wire ruler is provided with the first state which is vertically arranged and the second state which is horizontally arranged, when the pinyin four-wire ruler is required to be drawn on the blackboard body, the four-wire ruler is rotated to the second state, so that a teacher can take the four-wire ruler as a template to draw the pinyin four-wire ruler, when the pinyin four-wire ruler is not required to be drawn on the blackboard body, the four-wire ruler is rotated to the first state and is stored on one side of the blackboard body, so that the blackboard body is completely exposed, and the blackboard writing of the teacher is realized, namely the universal blackboard disclosed by the utility model can effectively improve the universality of the blackboard while meeting the teaching of the pinyin occupation writing specification of the blackboard, and can meet the teaching writing requirements of teachers of various families.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic view of a general blackboard in a first state of a four-wire ruler according to an embodiment of the present utility model;

FIG. 2 is a schematic side elevational view of FIG. 1;

FIG. 3 is a schematic view of a general blackboard in a second state of a four-wire ruler according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of section A of FIG. 1;

fig. 5 is a schematic sectional structure of a portion B in fig. 3.

Detailed Description

The present utility model is described in further detail below with reference to examples and drawings to enable those skilled in the art to practice the same and to refer to the description.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, are all commercially available; in the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.

As shown in fig. 1 to 5, an embodiment of the present utility model provides a general-purpose blackboard, including: a blackboard body 1; the mounting plate 2 is fixedly arranged on the left side or the right side of the blackboard body 1; the mounting seat 3 is arranged on the mounting plate 2 in a vertical sliding manner and is fixed through a locking piece; the four-wire grid ruler 4 is rotatably arranged on the mounting seat 3 and has a first state in vertical arrangement and a second state in horizontal arrangement, and when the four-wire grid ruler 4 is positioned in the second state, the four-wire grid ruler 4 is used as a template to draw pinyin four-wire grids.

In the above embodiment, the universal blackboard includes the blackboard body, the mounting plate, the mounting base and the four-line ruler. The blackboard body is an existing common blackboard and is fixedly arranged on a wall in front of a classroom. The mounting plate is fixedly arranged on the left side or the right side of the blackboard body, preferably on the left side, so that the operation is convenient, and the length of the mounting plate is equal to the width of the blackboard body. The mounting seat is arranged on the mounting plate in a vertical sliding mode and fixed through the locking piece so as to adjust the position of the mounting seat on the mounting plate. The four-wire grid ruler is rotatably arranged on the mounting seat, the height of the four-wire grid ruler is adjusted through the mounting seat, the four-wire grid ruler is provided with a first state which is vertically arranged and a second state which is horizontally arranged, the four-wire grid ruler can be rotated and switched between the first state and the second state, when the four-wire grid ruler is in the second state (figure 3), the four-wire grid ruler can be used as a template, and a teacher can draw pinyin four-wire grids on the blackboard body. Specifically, the four-line lattice ruler can be provided with four grooves at equal intervals along the width direction of the ruler, each groove is arranged along the length direction of the ruler, and when the four-line lattice ruler is in the second state, a teacher draws lines along each groove to draw pinyin four-line lattices; the four-line ruler can be provided with two grooves at intervals along the width direction of the ruler, each groove is arranged along the length direction of the ruler, the distance between the two grooves is equal to the distance between the grooves and the adjacent long sides, and when the four-line ruler is in the second state, a teacher draws lines along each groove and two long sides, and the pinyin four-line ruler is drawn.

In another embodiment, the mounting board 2 is provided with a slide 5 along the height direction thereof, the mounting base 3 includes a first connection portion 6 opposite to the mounting board 2 and a second connection portion 7 protruding from the mounting board 2, the first connection portion 6 is provided with a slider adapted to the slide 5, and the second connection portion 7 is embedded with the four-wire ruler 4.

In this embodiment, through locating the slide on the mounting panel and locating the slider sliding connection on the mount pad between mounting panel and the mount pad, lead the slider through the slide, make the mount pad can only follow the slide and slide on the mounting panel to keep the relative position relation of mount pad and mounting panel unchangeable on width direction, and then make the second connecting portion on the mount pad protrusion mounting panel all the time, in order not to influence the four-wire check chi of inlaying and establishing in the second connecting portion and rotate between first state and second state.

In another embodiment, the locking member is disposed below the first connecting portion 6, and includes a locking box 8 fixedly connected to the bottom surface of the first connecting portion 6, a threaded through hole is formed on one side of the locking box 8 away from the mounting plate 2, and an opening opposite to the threaded through hole is formed on the other opposite side, and the size of the opening is larger than that of the threaded through hole; the locking screw rod penetrates through the locking box 8 and is in threaded connection with the threaded through hole; the hand-screwed nut 9 is arranged outside the locking box 8 and is fixedly connected with one end of the locking screw, which is far away from the mounting plate 2; the locking plate is fixedly arranged at the other end of the locking screw rod, is parallel to the mounting plate and is smaller than the size of the opening.

In this embodiment, the retaining member is located the below of first connecting portion, i.e. retaining member and mounting panel set up relatively, the retaining member includes the lock box, the locking screw rod, hand screw nut and locking plate, the top surface of lock box and the bottom surface fixed connection of first connecting portion, form an organic wholely, the locking screw rod wears to establish in the lock box and with set up the screw thread through-hole threaded connection on the lock box, hand screw nut is located the lock box and keep away from the one end fixed connection of mounting panel with the locking screw rod, locking plate and mounting panel are parallel and with locking screw's the other end fixed connection, through clockwise rotation hand screw nut, make hand screw nut drive locking screw rod, locking screw rod drives the locking plate to one side that is close to the mounting panel removes, until the locking plate passes the trompil and the mounting panel butt of seting up on the lock box, realize fixing the mount pad on the mounting panel, when needing to adjust the position of mount pad on the mounting panel, anticlockwise rotation hand screw nut makes locking plate and mounting panel separation, then follow the slide and remove the mount pad to preset position, then clockwise rotation hand screw nut, make locking plate and mounting panel butt, the structure simple, the convenience is adjusted.

Further, the slide way 5 comprises a first slide way and a second slide way which are arranged in parallel, and the locking plate is positioned between the first slide way and the second slide way so as to facilitate the adjustment and the fixation of the locking piece.

In another embodiment, the second connecting portion 7 is hollow, the top surface and the side surface close to the mounting plate 2 are all open, and one end of the four-wire ruler 4 extends into the second connecting portion 7 and is rotatably connected with two side walls of the second connecting portion 7 parallel to the mounting plate 2.

In this embodiment, the four-wire ruler is embedded in the second connecting portion by defining the hollow interior of the second connecting portion, the top surface and the side surface close to the mounting plate to be open, extending one end of the four-wire ruler into the second connecting portion, and rotationally connecting two side walls of the second connecting portion parallel to the mounting plate, so that the four-wire ruler can be rotated between the first state and the second state.

In another embodiment, a connecting shaft 10 is fixedly arranged at one end of the four-wire ruler 4, two ends of the connecting shaft 10 are respectively connected with two side walls of the second connecting portion 7, which are parallel to the mounting plate 2, a first gear 11 is fixedly arranged at one end, which is far away from the first connecting portion 6, of the connecting shaft 10, a gear shaft 12 parallel to the connecting shaft 10 is arranged below the connecting shaft 10, two ends of the gear shaft 12 are respectively connected with two side walls of the second connecting portion 7, which are parallel to the mounting plate 2, in a rotating manner, a second gear 13 is fixedly arranged on the gear shaft 12, the second gear 13 is meshed with the first gear 11, a rack 14 is slidingly arranged on the bottom surface of the second connecting portion 7 along the length direction of the blackboard body 1, the rack 14 is meshed with the second gear 13, a limiting block 15 is fixedly arranged at one end, which is close to the blackboard body 1, of the limiting block 15 is arranged in a mode that the limiting block 15 is abutted against the four-wire ruler 4 is in the second state.

In this embodiment, through the fixed firmly connecting axle in the one end in the embedding of four-wire check chi second connecting portion, the one end that keeps away from first connecting portion on the connecting axle sets firmly first gear, set up rather than the second gear of meshing in the below of first gear, and rotate the both ends of the gear shaft of second gear and connecting axle through the both sides wall parallel with the mounting panel of bearing and second connecting portion respectively and be connected, set up the rack rather than the meshing in the below of second gear again, the bottom surface of rack and second connecting portion is along the length direction sliding connection of blackboard body, and set firmly the stopper in the one end that the rack is close to the blackboard body, make in proper order drive connecting axle in the moment that the four-wire check chi is rotated to the second state by first state, first gear, the second gear rotates, the second gear drives the rack and stretches out along the length direction of blackboard body, and carry out spacingly through the stopper to the rotation angle of four-wire check chi, make four-wire check chi and stopper when the butt, the four-wire check chi is in horizontal second state, when the four-wire check chi is rotated to the first state by the second state, the connection axle is driven in proper order, the first gear, the second gear drives the rack and the second gear just in time is in the direction of the extension of the blackboard body, the vertical extension of the blackboard body when the first state is not in the length of the blackboard.

In another embodiment, the bottom of the second connecting portion 7 is provided with an inverted T-shaped chute 16 along the length direction of the blackboard body 1, the rack 14 is slidably disposed in the inverted T-shaped chute 16, and the lower end of the second gear 13 extends into the inverted T-shaped chute 16 and is meshed with the rack 14.

In this embodiment, through seting up the reverse T shape spout in the length direction of blackboard body in the bottom of second connecting portion, reverse T shape spout include vertical portion and with the horizontal part of the bottom intercommunication of vertical portion to in locating the horizontal part of reverse T shape spout with the rack slip, stretch into the vertical portion of reverse T shape spout with the lower extreme of second gear and with the rack meshing, in order to carry out spacing and provide the support to the rack through reverse T shape spout when moving along the length direction of blackboard body through second gear drive rack.

In another embodiment, a limiting chute 17 is formed on a side, far away from the mounting plate 2, of the bottom surface of the inverted T-shaped chute 16 along the length direction of the blackboard body 1, and a limiting slider 18 adapted to the limiting chute 17 is fixedly arranged on the bottom surface of the rack 14.

In this embodiment, through locating the spacing spout of the bottom surface of the inverted T shape spout and locating the spacing slider sliding connection of rack bottom surface between the rack, lead and spacing through spacing spout to spacing slider for the rack can be under the drive of four-wire check chi along the length direction of blackboard body remove, and when spacing slider is located spacing spout be close to when the one end of mounting panel, four-wire check chi is in horizontal second state, and when spacing slider is located spacing spout keep away from when the one end of mounting panel, four-wire check chi is in vertical first state.

Further, a supporting plate 19 is fixedly arranged on the bottom surface of the second connecting portion, the supporting plate 19 is located on the extending surface of the bottom surface of the second connecting portion 7 and does not protrude out of the blackboard body 1, so that the rack 14 is lifted and supported through the supporting plate 19, and the supporting stability of the rack to the four-line ruler is improved.

The number of equipment and the scale of processing described herein are intended to simplify the description of the present utility model. The application, modification and variation of a universal blackboard of the present utility model will be apparent to those skilled in the art.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. A universal blackboard, comprising:

a blackboard body;

the mounting plate is fixedly arranged on the left side or the right side of the blackboard body;

the mounting seat is arranged on the mounting plate in a vertical sliding manner and is fixed through a locking piece;

the four-wire grid ruler is rotatably arranged on the mounting seat and is provided with a first state and a second state, wherein the first state is vertical to the mounting seat, the second state is horizontal to the mounting seat, and when the four-wire grid ruler is positioned in the second state, the four-wire grid ruler is used as a template to draw pinyin four-wire grids.

2. The universal blackboard according to claim 1, wherein the mounting plate is provided with a slide way along the height direction thereof, the mounting seat comprises a first connecting portion opposite to the mounting plate and a second connecting portion protruding out of the mounting plate, the first connecting portion is provided with a sliding block adapted to the slide way, and the second connecting portion is embedded with the four-wire ruler.

3. The universal blackboard according to claim 2, wherein the locking member is disposed below the first connecting portion, and includes a locking box fixedly connected to the bottom surface of the first connecting portion, wherein a threaded through hole is formed in one side of the locking box away from the mounting plate, and an opening opposite to the threaded through hole is formed in the other opposite side of the locking box, and the size of the opening is larger than that of the threaded through hole; the locking screw rod penetrates through the locking box and is in threaded connection with the threaded through hole; the hand-screwed nut is arranged outside the locking box and is fixedly connected with one end of the locking screw far away from the mounting plate; the locking plate is fixedly arranged at the other end of the locking screw rod, is parallel to the mounting plate and is smaller than the size of the opening.

4. A universal blackboard according to claim 3, wherein the second connecting portion is hollow, the top surface and the side surface adjacent to the mounting plate are all open, and one end of the four-wire ruler extends into the second connecting portion and is rotatably connected with two side walls of the second connecting portion parallel to the mounting plate.

5. The universal blackboard according to claim 4, wherein a connecting shaft is fixedly arranged at one end of the four-wire ruler, two ends of the connecting shaft are respectively and rotatably connected with two side walls of the second connecting portion, which are parallel to the mounting plate, a first gear is fixedly arranged at one end of the connecting shaft, which is far away from the first connecting portion, a gear shaft parallel to the connecting shaft is arranged below the connecting shaft, two ends of the gear shaft are respectively and rotatably connected with two side walls of the second connecting portion, which are parallel to the mounting plate, a second gear is fixedly arranged on the gear shaft, the second gear is meshed with the first gear, a rack is slidably arranged on the bottom surface of the second connecting portion along the length direction of the blackboard body, the rack is meshed with the second gear, a limiting block is fixedly arranged at one end of the rack, which is close to the blackboard body, and the limiting block is arranged in a mode that the limiting block is abutted to the four-wire ruler is in the second state.

6. The universal blackboard according to claim 5, wherein the bottom of the second connecting portion is provided with an inverted T-shaped chute along the length direction of the blackboard body, the rack is slidably disposed in the inverted T-shaped chute, and the lower end of the second gear extends into the inverted T-shaped chute and is meshed with the rack.

7. The universal blackboard according to claim 6, wherein a limit sliding groove is formed in one side, far away from the mounting plate, of the bottom surface of the inverted T-shaped sliding groove along the length direction of the blackboard body, and a limit sliding block matched with the limit sliding groove is fixedly arranged on the bottom surface of the rack.