CN209746851U

CN209746851U - Column type lifting teaching board

Info

Publication number: CN209746851U
Application number: CN201920121474.XU
Authority: CN
Inventors: 刘东溟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2019-12-06
Anticipated expiration: 2029-01-24

Abstract

The utility model discloses a column lift teaching board, including the clipboard, a column, the pulley, balancing weight and wire rope, there is the frame in clipboard outer fringe cladding, the stand is established at the clipboard back, the stand is arranged perpendicularly with the clipboard, openly be equipped with vertical guide way at the stand, it has a direction slider to form a complete set in vertical guide way, gliding joint is in vertical guide way about the clipboard is connected to the direction slider, the pulley articulates the stand top at direction slider rear end, gliding installation is in the stand of pulley rear end about the balancing weight, wire rope winds on the pulley, wire rope one end is connected with the balancing weight, one end is connected with the direction slider. The utility model installs the upright post on the back of the writing board, does not occupy the width of the display surface, has wider visual field, strong integral continuity and good visual impact effect, and is more beneficial to attracting the attention of students; the sliding of the pulley block is replaced by the sliding of the guide sliding block, so that the installation process is more rapid and convenient, time-saving and labor-saving, and is not easy to damage.

Description

Column type lifting teaching board

Technical Field

The utility model relates to a teaching aid field especially relates to a column lift teaching board.

Background

In the teaching, often can use the blackboard to write, and traditional fixed monolithic blackboard can not vary from person to person when using, and it is limited to carry out the vertical adjustment distance, so makes short and small person of writing feel inconvenient to because both sides stand occupy the place, also can not make the show surface obtain abundant application, receive certain restriction to viewer's visual altitude range in addition.

Then, a double-block blackboard capable of lifting up and down appears as required, for example, a chinese patent with an authorization publication number of CN2402497Y discloses a single-block lifting blackboard, the lifting of the blackboard utilizes a combined pulley block and a balance bar arranged on the back of the blackboard, a steel wire rope penetrates through the balance bar and penetrates out, two ends of the steel wire rope are respectively connected with fixed pulley blocks which are bilaterally symmetrical, when the blackboard is pulled down or moved up, the steel wire rope pulls the balance bar to move relatively through the fixed pulleys to perform longitudinal force balance, but the number of the fixed pulleys used in the scheme is too large, and when one of the fixed pulleys fails, the failure troubleshooting is also difficult.

in order to solve the above problems, chinese patent No. CN203371954U discloses a self-balancing lifting writing board, which comprises a writing board, wherein upright posts are disposed at the left and right ends of the writing board, a longitudinal guide groove is disposed at the joint of the upright post and the writing board, longitudinal lifting adjusting and fixing devices are disposed at the left and right sides of the back surface of the writing board, self-balancing lifting devices are disposed in the guide rails at both sides, and the self-balancing lifting devices are respectively connected to the lifting adjusting and fixing devices at the same side through a steel wire rope. The setting of stand causes the show face to narrow down, and the whole continuity of lift clipboard is not strong, and the visual impact effect is poor, is unfavorable for attracting student's attention.

SUMMERY OF THE UTILITY MODEL

an object of the utility model is to provide a weak point to prior art, provide a column lift teaching board of show face maximize under the condition that does not change whole width size.

The utility model provides a this kind of column lift teaching board, including clipboard, stand, pulley, balancing weight and wire rope, there is the frame in clipboard outer fringe cladding, the stand is established at the clipboard back, and the stand arranges with the clipboard is perpendicular, openly is equipped with vertical guide way at the stand, and it has a direction slider to form a complete set in vertical guide way, and gliding joint is in vertical guide way about the clipboard is connected to the direction slider, and the pulley articulates at the stand top of direction slider rear end, and gliding the installing is in the stand of pulley rear end about the balancing weight, and wire rope winds on the pulley, and wire rope one end is connected with the balancing weight, one end is connected with the direction slider.

in order to be more suitable for classroom installation, a silencing pad is arranged in the longitudinal guide groove in a whole length mode.

For accelerating the installation speed, the guide sliding block comprises a clamping portion and a sliding portion which are sequentially arranged from front to back, the cross section of the clamping portion is T-shaped, a clamping groove corresponding to the clamping portion is formed in a frame on the back of the writing board, the guide sliding block is clamped in the clamping groove of the frame through the clamping portion, and the guide sliding block is installed in the longitudinal guide groove in a vertically sliding mode through the sliding portion.

for accelerating the installation speed the sliding part rear side still is equipped with an unfilled circular connecting portion, and the transversal C style of calligraphy of personally submitting of unfilled circular connecting portion, the wire rope joint is in unfilled circular connecting portion, and the direction slider passes through the wire rope on the unfilled circular connecting portion and is connected with the balancing weight.

Compared with the prior art, the utility model has the advantages of it is following:

1. with column mouting at the clipboard back, under the unchangeable condition of frame width and installation plane size, the size of clipboard face can increase the width of two stands than traditional lifter plate, makes the field of vision wideer, and whole continuity is stronger, and visual impact effect is better, more does benefit to the attention that attracts the student.

2. The sliding block clamped at the rear end of the frame is connected with the upright column in a vertically sliding manner, so that the assembly of a pulley block is replaced, the assembly process is quicker and more convenient, time and labor are saved, and the assembly is not easy to damage; the matching precision of the sliding block and the upright post is more controllable and firm, and the production is easier.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional view of a portion of fig. 1 taken along line a-a.

The labels shown in the figures and the corresponding component names are:

1. A writing board; 2. a frame; 3. a guide slider; 4. a column; 5. a pulley; 6. a balancing weight; 7. a wire rope; 8. a sound-deadening pad; 21. a card slot; 31. a clamping part; 32. a sliding part; 33. a circle-lacking connecting part; 41. a longitudinal guide groove.

Detailed Description

As can be seen from figures 1 and 2, the column type lifting teaching board of the utility model comprises a writing board 1, a frame 2, a guide sliding block 3, a column 4, a pulley 5, a balancing weight 6 and a steel wire rope 7,

The frame 2 is covered around the outer edge of the writing board 1, the back surfaces of the frame 2 at the left and right ends of the writing board 1 are provided with clamping grooves 21 with sealed tops,

The upright post 4 is vertically arranged at the end part of the back surface of the writing board 1, the upright post 4 and the writing board 2 are vertically arranged, the front surface of the upright post 4 is provided with a longitudinal guide groove 41,

the guide sliding block 3 comprises a clamping portion 31, a sliding portion 32 and a circle-lacking connecting portion 33 which are sequentially arranged from front to back, the cross section of the clamping portion 31 is in a T shape corresponding to the shape of the clamping groove 21, and the guide sliding block 3 is matched with the clamping groove 21 through the clamping portion 31 and is clamped and fixed on the rear end face of the frame 2; the sliding part 32 corresponds to the shape of the longitudinal guide groove 41, the sliding part 32 is clamped in the longitudinal guide groove 41 in a vertically sliding manner, and the guide slide block 3 is arranged in the longitudinal guide groove 41 through the sliding part 32; the cross section of the out-of-round connecting part 33 is C-shaped,

The pulley 5 is hinged on the top of the upright 4 at the rear end of the longitudinal guide groove 41,

The counterweight block 6 is arranged in the upright post 4 at the rear end of the pulley 5 in a vertically sliding way,

The steel wire rope 7 is wound on the pulley 5, one end of the steel wire rope 7 is connected with the balancing weight 6, and the other end of the steel wire rope is clamped and fixed on the circle-lacking connecting part 33 of the guide sliding block 3.

as can be seen from fig. 1 and 2, the silencing pad 8 is disposed in the longitudinal guide groove 41 of the present invention, and the silencing pad 8 is wrapped around the sliding portion 32.

Claims

1. the utility model provides a column lift teaching board, includes clipboard (1), stand (4), pulley (5), balancing weight (6) and wire rope (7), has frame (2), its characterized in that in clipboard outer fringe cladding: the utility model discloses a writing board, including the stand, the stand is established at the clipboard back, and the stand is arranged perpendicularly with the clipboard, openly is equipped with vertical guide way (41) at the stand, and the fit cover has a direction slider (3) in vertical guide way, and gliding joint is in vertical guide way about the clipboard is connected to the direction slider, and the pulley articulates at the stand top of direction slider rear end, and gliding installation is in the stand of pulley rear end about the balancing weight, and wire rope winds on the pulley, and wire rope one end is connected with the balancing weight, and one end is connected with the direction slider.

2. The column lift teaching board of claim 1 wherein: a sound-deadening pad (8) is arranged in the longitudinal guide groove.

3. The column lift teaching board of claim 1 wherein: the direction slider includes joint portion (31) and sliding part (32) by arranging in proper order after to before, and the transversal T style of calligraphy of personally submitting of joint portion is equipped with draw-in groove (21) corresponding with joint portion on the frame at the clipboard back, and the direction slider passes through joint portion card and fixes in the draw-in groove of frame, and the direction slider passes through the sliding part gliding installation from top to bottom in vertical guide way.

4. The column lift teaching board of claim 3 wherein: sliding part rear side still is equipped with a unfilled circular connecting portion (33), and the transversal C style of calligraphy of personally submitting of unfilled circular connecting portion, wire rope joint are connected with the balancing weight in unfilled circular connecting portion, direction slider through the wire rope on the unfilled circular connecting portion.