A flip double-sided magnetic writing board dedicated to ideological and political education
A magnetic writing board and writing board technology, applied in the field of writing boards, can solve the problems of low safety, easy falling, inconvenient writing, etc., and achieve the effect of high safety, convenient writing, and not easy to fall
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Embodiment 1
[0030] A special reversible double-sided magnetic writing board for ideological and political education, such as Figure 1 to Figure 3 As shown, it includes a mounting base 1, a universal wheel 2, a lifting mechanism 3 and a writing board assembly 4. The left and right sides of the bottom of the mounting base 1 are symmetrically connected with two universal wheels 2, and the mounting base 1 is equipped with Lifting mechanism 3, writing board assembly 4 is installed on the lifting mechanism 3.
[0031] The lifting mechanism 3 includes a hollow support tube 31, a movable strut 32, a fixed seat 33, a first return spring 34 and a latch pull rod 35. The top of the mounting seat 1 is connected with three hollow support tubes 31 evenly spaced, and the hollow support tube 31 slides The movable strut 32 is connected with the movable support rod 32, the front side of the outer wall of the hollow support tube 31 is connected with a fixed seat 33, and the three fixed seats 33 are slidably...
Embodiment 2
[0035] On the basis of Example 1, such as figure 1 and Figure 4 As shown, it also includes a turning mechanism 5, and the turning mechanism 5 includes a fixed plate 51, a first rail frame 52, a ratchet bar 53, a second return spring 54, a ratchet gear 55, a pull frame 56 and a connecting frame 57, and the mounting frame The left and right sides of the front side of 41 are all connected with fixed plate 51, and the first guide rail frame 52 is connected on the fixed plate 51, and connecting frame 57 is slidably connected between two first rail frames 52, and connecting frame 57 front side upper left and right sides Symmetrically connected with two pull frames 56, the upper part of the left and right sides of the connecting frame 57 is slidably connected with a ratchet bar 53, and two elastic parts are connected between the ratchet bar 53 and the connecting frame 57. A second return spring 54 is connected between the rail frames 52 , and a ratchet gear 55 is connected to the c...
Embodiment 3
[0038] On the basis of Example 2, such as figure 1 and Figure 5 As shown, it also includes a fixing mechanism 6, the fixing mechanism 6 includes a first fixing frame 61, a second rail frame 62, a double-headed rack 63, a splint 64 and a sector gear 65, and the left and right sides of the mounting frame 41 are connected with The first fixed mount 61, the top of the first fixed mount 61 is connected with the second guide rail frame 62, the double-headed rack 63 is slidably connected in the second guide rail frame 62, and the top of the first fixed mount 61 is connected in a symmetrical rotational manner. Two clamping plates 64 are arranged, and clamping plate 64 is positioned at the outside of second rail frame 62, and clamping plate 64 contacts with plate frame 43, is connected with sector gear 65 on clamping plate 64, and sector gear 65 cooperates with double-headed rack 63.
[0039] Initially, the plate frame 43 is clamped and fixed by the clamping plate 64, which can preve...
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