CN2440383Y - Posture protector - Google Patents

Abstract

The utility model relates to an article which can lead students to keep correct postures on the students read and write. The utility model comprises a concave-shaped protecting rack, a height adjusting device of the protecting rack and a fixed device of a table top, wherein, the fixed device of the table top is arranged on the bottom of the height adjusting device. The utility model can be vertically arranged on the marginal part of a table by the fixed device of the table top, and the concave-shaped protecting rack can be adjusted to a proper height by the height adjusting device. Thus, a student's chin can rest on concave-shaped protecting rack when the student sits on a chair, so that the student always can keep a correct study posture. The utility model has the advantages of convenient use, portability and convenient adjustment height.

Description

Learn the appearance protector

The utility model relates to a kind of articles for use that can make the student keep correct body posture when seeing written word.

Student's learning tasks are heavy, are in health growth developmental stage, if form bad seeing the written word custom, easily cause degradation adverse consequences under spinal curvature, the eyesight.For this reason, developed study in recent years with figure protection articles for use such as figure band, health care school bag.But its weak point is that the user does not feel well and answers, and acts on not obvious owing to take with oneself.

The purpose of this utility model provides a kind of student that makes that use on the table can be installed and keep the articles for use of correct body posture when seeing written word, promptly learns the appearance protector.

The purpose of this utility model is achieved in that it comprises: spill is protected frame and height adjuster thereof and is located at the desktop fixture of height adjuster bottom.

Said height adjuster comprises: upper and lower side all with shedding shell, can stretch out and the last position retaining plate of withdrawal and locking position and unlocking mechanism, lower gear plate and the locking position and the unlocking mechanism that can stretch out and withdraw by the housing lower ending opening by the housing upper end open, said spill is protected frame and is fixedly arranged on the position retaining plate upper end, and said desktop fixture is connected with lower gear plate lower end.

The locking position of the position retaining plate of saying and unlocking mechanism are to constitute like this: vertically have the gear hole that is interconnected at last position retaining plate, the housing internal frame is provided with and vertically passes this gear hole and the last lock shaft that can move back and forth, and lock shaft is made of with external diameter tiny less than this connection place bore greater than thick of adjacent gear hole connection place bore external diameter on this.

The locking position of said lower gear plate and unlocking mechanism are to constitute like this: vertically have the gear hole that is interconnected at the lower gear plate, the housing internal frame is provided with and vertically passes this gear hole and the following lock shaft that can move back and forth, and this time lock shaft is made of with external diameter tiny less than this connection place bore greater than thick of adjacent gear hole connection place bore external diameter.

In said housing, can also be respectively equipped with the slideway that position retaining plate slides up and down about being convenient to.

Said desktop fixture can comprise the train wheel bridge that said housing lower end connects, the support plate that is connected with said lower gear plate lower end, the adjustment screw that can offset and be threaded with support plate in the lower plate of slippage between train wheel bridge and the support plate, end and lower plate bottom surface.

Principle of the present utility model is: utilize the desktop fixture that the utility model is hung down and be located at an edge portion, utilize arrangement for adjusting height that spill is protected frame and be adjusted to suitable height.The student will descend chin portion to pillow spill and protect on the frame and be sitting on the chair.So, the student is writing or to listen the height of class hour chest apart from the distance of desk, head apart from desktop to remain constant, promptly can keep correct study attitude all the time.

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a principal section schematic diagram of the present utility model.

Fig. 3 is Fig. 2 A-A generalized section.

Fig. 4 is the B-B generalized section of Fig. 2.

Fig. 5 is the C-C generalized section of Fig. 2.

Below in conjunction with accompanying drawing and concrete embodiment the utility model is done and to be described in further detail.

As shown in Figure 1, the utility model comprises that having the spill of being convenient to rest the head on the concave surface that puts down chin portion protects frame 1, height adjuster 2 and desktop fixture 3.

With reference to figure 2, height adjuster 2 comprises: upper and lower side all with the housing 20 of opening, can stretch out and the last position retaining plate 21 of withdrawal and locking position thereof and unlocking mechanism, lower gear plate 22 and the locking position and the unlocking mechanism that can stretch out and withdraw by housing 20 lower ending openings by housing 20 upper end open, spill is protected frame 1 and is fixedly arranged on position retaining plate 21 upper ends, and desktop fixture 3 is connected with lower gear plate 22 lower ends.

With reference to figure 3, the locking position of last position retaining plate 21 and unlocking mechanism are to constitute like this: vertically have several gear holes 23 that are interconnected at last position retaining plate 21, housing 20 internal frames are provided with the last lock shaft 24 that vertically passes this gear hole 23 and can move back and forth, and lock shaft 24 is made of greater than less than this connection place bore tiny 242 of thick 241 of adjacent gear hole 23 connection place bores and external diameter external diameter on this.

The locking position of lower gear plate 22 is consistent with the locking position and the unlocking mechanism of the same position retaining plate 21 of unlocking mechanism: vertically have the gear hole that is interconnected at lower gear 21 plates and (do not illustrate among the figure, but it is identical with gear hole 23), housing 20 internal frames are provided with and vertically pass this gear hole and the following lock shaft 25 that can move back and forth, and this time lock shaft 25 is made of greater than less than this connection place bore tiny 252 of thick 251 of adjacent gear hole connection place bore and external diameter external diameter.

Last lock shaft 24 and following lock shaft 25 are with back-moving spring 26,27 separately, back-moving spring 26,27 makes in thick 251 of thick 241 of lock shaft 24 and following lock shaft 25 hole, pan position 23 that is in position retaining plate 21,22 up and down all the time, thereby guarantees that position retaining plate 21,22 is of the lock bit up and down.When pushing lock shaft 24, following lock shaft 25 with hand, back-moving spring 26,27 can be compressed, make thick 241,251 break away from gear holes 23 and tiny 242,252 be in 23 places, gear hole, because tiny 242,252 external diameters be less than adjacent gear hole connection place bore, thus about position retaining plate 21,22 can move, promptly be unblanked by easy on and off.Can regulate the height that spill is protected frame 1 easily whereby.

In housing 20, can also be respectively equipped with the slideway 28,29 that position retaining plate 21,22 slides up and down about being convenient to.

Desktop fixture 3 can comprise the train wheel bridge 31 that housing 20 lower ends connect, the support plate 33 that is connected with lower gear plate 22 lower ends, the adjustment screw 37 that can offset and be threaded with support plate 33 in the lower plate 32 of slippage between train wheel bridge 31 and the support plate 33, end and lower plate 32 bottom surfaces.Using method is: desk edge portion is embedded between train wheel bridge 31 and the lower plate 32, turn adjustment screw 37 and allow desk edge portion be clipped in tightly between the lower plate 31,32.In addition, can on support plate 33, establish chute 35, put the nuts that can be free to slide 36 in the chute 35, chute 35 have the strip hole bigger slightly but littler up and down than nut 36 than adjustment screw 37 bores, adjustment screw 37 is passed chute 35 and is screwed onto on the nut 36.This structure makes adjustment screw 37 to be free to slide, and is convenient to protector on the various desks that table edge portion width does not wait.Further, preferably establish three grooves 34 in lower plate 32 bottoms, adjustment screw 37 embeds in the grooves 34 when fixing protector like this, is not easy to scurry the position.

In addition, with reference to figure 4, spill is protected frame 1 can adopt socket connection with last position retaining plate 21.Its structure is: protect frame 1 bottom in spill and be provided with and the consistent insertion ditch 11 of last position retaining plate 21 end bores, bury underground by the steel ball 12 of spring push at insertion ditch 11 inwalls.In the time of in will going up position retaining plate 21 insertion ditches 11, steel ball 12 can be pressed on position retaining plate 21 and insert in the ditch 11.In the time will pulling down spill and protect frame 1, as long as slightly firmly can transfer to position retaining plate 21.

The utility model is learned the appearance protector makes the student can keep correct study attitude, use carrying convenience, highly easy to adjust all the time.

Claims (4)

1, learns the appearance protector, it is characterized in that: comprise that spill protects frame and height adjuster thereof and be located at the desktop fixture of height adjuster bottom.

2, by the said appearance of claim 1 protector; it is characterized in that: said height adjuster comprises: upper and lower side all with shedding shell, can stretch out and the last position retaining plate of withdrawal and locking position and unlocking mechanism, lower gear plate and the locking position and the unlocking mechanism that can stretch out and withdraw by the housing lower ending opening by the housing upper end open; said spill is protected frame and is fixedly arranged on the position retaining plate upper end, and said desktop fixture is connected with lower gear plate lower end.

3, by the said appearance of claim 2 protector; it is characterized in that: the locking position of the position retaining plate of saying and unlocking mechanism are to constitute like this: vertically have the gear hole that is interconnected at last position retaining plate; the housing internal frame is provided with and vertically passes this gear hole and the last lock shaft that can move back and forth, and lock shaft is made of with external diameter tiny less than this connection place bore greater than thick of adjacent gear hole connection place bore external diameter on this.

4, by claim 2 or 3 said appearance protectors; it is characterized in that: the locking position of said lower gear plate and unlocking mechanism are to constitute like this: vertically have the gear hole that is interconnected at the lower gear plate; the housing internal frame is provided with and vertically passes this gear hole and the following lock shaft that can move back and forth, and this time lock shaft is made of with external diameter tiny less than this connection place bore greater than thick of adjacent gear hole connection place bore external diameter.

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