CN201349779Y

CN201349779Y - Whiteboard shelf structure

Info

Publication number: CN201349779Y
Application number: CNU2008201827878U
Authority: CN
Inventors: 许传福
Original assignee: HEFU INTERNATIONAL CO Ltd
Current assignee: HEFU INTERNATIONAL CO Ltd
Priority date: 2008-12-25
Filing date: 2008-12-25
Publication date: 2009-11-25
Anticipated expiration: 2018-12-25

Abstract

The utility model discloses a whiteboard shelf structure which is a shelf body. A first lifting part is formed at the upper half part of the shelf body, a second lifting part is formed at the lower half part of the shelf body, and the first lifting part and the second lifting part are sleeved with each other through inner and outer rods. The shelf body comprises an adjusting part, one end of which is spanned on the first lifting part through crossbeams. The adjusting part presently comprises inner and outer sleeves which are vertically assembled with the crossbeams, a spiral rotating mechanism threaded on the inner and outer sleeves, and a shaft housing sleeved at one end of the spiral rotating mechanism. The shaft housing is arranged between the crossbeams, and the spiral rotating mechanism enables any one of the inner and outer sleeves to stretch and retract relatively to the other and drives the first lifting part to lift and descend through the crossbeams by means of the inner and outer rods. The shaft housing is provided with a telescopic rotating arm in an extending way, and the telescopic rotating arm can be used to arrange a projector. A fixing frame used for arranging the whiteboard is connected at the side edge of the second lifting part, and the inner and outer rods of the second lifting part lift and descend through a brake mechanism and drive the fixing frame to be lifted or lowered with the same displacement. The utility model increases the functionality and practicability of the whiteboard shelf structure.

Description

The blank shelf structure

Technical field

The utility model relates to a kind of board, relates in particular to a kind of blank shelf structure.

Background technology

The appearance of board is passed on knowledge and skills to the student, is a significant example for the information propagation provides new mode, teacher to utilize blackboard to write teaching material.

Yet blackboard but has drawback, because blackboard need just can be write by chalk and stay note, during using, chalk can produce chalk dust, the long-term hand that grips chalk causes skin aging easily, cause dry skin, chap, and write book, erase the board, cleaning a large amount of chalk dusts of kicking up easily again during blackboard eraser, cause eyes allergy easily, cause the defect of respiratory tract in the suction body easily, the easier calculus that causes of getting off is for a long time reviewed blank and is being write, the wiped clean aspect is all very convenient, bright few fall-out, less to the influence of environmental protection and health, so the apparent blackboard that is higher than of the popularity rate of Shi Yonging in recent years;

In order to increase the functional and practicality of blank, the dealer develops many relevant designs successively, TaiWan, China letters patent M318523 " improvement of blank (or billboard) supporting structure " patent for example, its structure is generally for organizing the preceding bar group and the support bar group of establishing mutually, bar group and support bar group are by first before being somebody's turn to do, second, the connection of the 3rd hollow tube wears and forms, adjust the second hollow tube length of this preceding bar group and support bar group simultaneously, can rise, whole height falls, and adjust the second hollow tube length of this preceding bar group or support bar group separately, can change its elevation angle angle, in addition, the length of adjusting the 3rd hollow tube can rise, the placement height of blank falls;

Though this blank support can be adjusted blank and place height or elevation angle amplitude, but because inside and outside sheathed hollow tube is only exerted pressure fixing with simple blocking mechanism by the hollow tube packing of outside, so fastening strength is limited, when in case the load-carrying of blank frame is heavier, hollow tube just is subjected to gravity effect easily and glides, and can't maintain set length; Add this blank support with several sheathed the forming of hollow tube, shared volume is big, weight is heavier, obviously is not easy to free-hand carrying or mobile;

In addition, blank removes to do writes record usefulness, the platform of to give the correct time of also being everlasting as data for projection, and device such as the projector that need use during projection and computer, if can be located at nearby blank near, then be convenient to operation and drop shadow effect, but this blank frame does not have the relevant design that can supply devices such as projector and computer to put, obviously functional not good enough with practicality.

The utility model content

Technical problem underlying to be solved in the utility model is, overcome the above-mentioned defective that prior art exists, and provide a kind of blank shelf structure, can not glide when making the support body lifting because of the weight compressing of own wt, blank weight or attachment devices such as projector, mobile computer to both take the altitudes, and support body is provided with assembly pulley, so difficult problem that does not have carrying or move, adding upper frame also can plug-in projector and mobile computer, perhaps place the article that need, more increase its functional and practicality with the table frame.

For reaching aforementioned purpose, the utility model is a support body, and this support body one end forms one first lifting unit, and the other end then forms one second lifting unit, and this first, second lifting unit is vertically to be socketed to form with inside and outside bar;

This support body comprises an adjustment part, and between first lifting unit, this adjustment part still comprises the inside and outside sleeve pipe of establishing with the beam vertical group to this adjustment part one end with the crossbeam cross-over connection, wears a spiral shell rotation mechanism of inside and outside sleeve pipe and is located at a axle sleeve between crossbeam; This spiral shell rotation mechanism comprises the runner being located at the screw rod in the inner sleeve and being located at the inner sleeve mouth, the threaded engagement of this screw rod and inner sleeve wall, and an end extends to an axle that wears crossbeam, this runner can order about inner sleeve and be maintained at relative screw rod pivot under the same level height, this screw rod is borrowed the screw thread upper and lower displacement and is made the relative inner sleeve of outer tube flexible, and drives first lifting unit with crossbeam and do lifting with inside and outside bar; This axle sleeve is sheathed on outside the axle and is extended with a spiral arm that is provided with for projector, and this pivoted housing screw mechanism pivot relatively makes the relative support body pivot pendulum of spiral arm with the change projection vector, and this spiral arm then has flexible function, can adjust, be fixed in different length;

This second lifting unit links in side has the fixed frame and the cross bar shape that are provided with for blank to supply a supporting part of mobile computer placement, and establish a frame of placing for article with respect to fixed frame opposite side group, establish an assembly pulley in the second lifting unit bottom group again, this assembly pulley makes support body have mobile effect; The inside and outside bar of this second lifting unit is to do flexible and reach the lifting effect with an arrestment mechanism, this arrestment mechanism is electronic cylinder or oil hydraulic cylinder or pneumatic cylinder, brake so as to doing linearity, and drive the lift adjustment that this fixed frame is done the same displacement amount, to reach the effect of adjusting the blank height.

Characteristics of the present utility model are, the lifting structure of support body adopts the fixing cylinder body that reaches of threaded engagement to advance fixing formation for support body to be better than the prior art constructions support force, can not glide when making the support body lifting because of the weight compressing of own wt, blank weight or attachment devices such as projector, mobile computer to both take the altitudes, and support body is provided with assembly pulley, so difficult problem that does not have carrying or move, adding upper frame also can plug-in projector and mobile computer, perhaps place the article that need, more increase its functional and practicality with the table frame.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the combination schematic perspective view of the utility model blank shelf structure.

Fig. 2 is the stereoscopic schematic diagram of the utility model installing blank and projector.

Fig. 3 and Fig. 4 are adjustment part of the present utility model operating state schematic diagrames.

Fig. 5 and Fig. 6 are arrestment mechanism operating state schematic diagrames of the present utility model.

Fig. 7 and Fig. 8 are the utility model lifting support body and the view of adjusting projection vector.

Fig. 9 is a spiral arm length adjustment view of the present utility model.

The number in the figure explanation:

Bar 101 in support body 1 first lifting unit 10

Bar 111 in outer bar 102 second lifting units 11

Outer bar 112 arrestment mechanisms 113 cross bars 1131

Push rod 1132 cramps 114 adjustment parts 12

Crossbeam 121,121a inner sleeve 122 screw threads 1221

Outer tube 123 spiral shell rotation mechanisms 124 screw rods 1241

Runner 1242 axles 1243 axle sleeves 125

Spiral arm 1251 bolts 1252 fixed frames 13

14 framves of supporting part, 15 assembly pulleys 16

Blank 2 projectors 3

The specific embodiment

The utility model is relevant a kind of blank shelf structure, please consult Fig. 1 earlier to shown in Figure 6, it is the utility model preferred embodiment, show a support body 1 of vertical among the figure, this support body 1 first half forms one first lifting unit 10, Lower Half then forms one second lifting unit 11, and this first, second lifting unit the 10, the 11st vertically is socketed to form with interior bar 101,111 and outer bar 102,112;

This support body 1 vertically is provided with an adjustment part 12 downwards in first lifting unit, 10 tops, these adjustment part 12 1 ends with crossbeam 121,121a cross-over connection in 10 of first lifting units, this adjustment part 12 is outer bar 102 cross-over connections with two parallel crossbeam 121,121a and first lifting units 10 in the present embodiment, this adjustment part 12 still comprises the inside and outside sleeve pipe of establishing with crossbeam 121,121a orthogonal sets 122,123, wears a spiral shell rotation mechanism 124 of inside and outside sleeve pipe 122,123 and a axle sleeve 125 between between parallel crossbeam 121,121a; This spiral shell rotation mechanism 124 comprises the runner 1242 being located at the screw rod 1241 in the inner sleeve 122 and being located at 122 mouthfuls of inner sleeves, screw thread 1221 interlocks of this screw rod 1241 and inner sleeve 122 walls, and an end extends to an axle 1243 that wears crossbeam 121,121a, this runner 1242 can order about inner sleeve 122 and be maintained at relative screw rod 1241 pivots under the same level height, make screw rod 1241 borrow screw thread 1221 upper and lower displacements, and make outer tube 123 relative inner sleeves 122 stretch; It is outer and but phase center roller 1243 pivots that 125 on this axle sleeve is sheathed on axle 1243, and this axle sleeve 125 is bending and is extended with a spiral arm 1251 that is provided with for projector 3, this spiral arm 1251 has flexible effect, and cooperates a bolt 1252 to adjust, be fixed in different length;

This support body 1 links in second lifting unit, 11 sides a fixed frame 13 that is provided with for blank 2,111,112 on the inside and outside bar of this second lifting unit 11 is provided with an arrestment mechanism 113, this arrestment mechanism 113 is electronic cylinder or oil hydraulic cylinder or pneumatic cylinder, so as to the inside and outside bar 111,112 of second lifting unit 11 being done linear braking; In the present embodiment, this arrestment mechanism 113 is to be located at relative inside and outside bar 111,112 middle positions of second lifting unit 11, and be connected with a cross bar 1311 with the interior bar 111 of left and right sides, this support body 1 also is provided with the supporting part 14 that the cross bar shape is placed for the mobile computer (not shown) in second lifting unit 11, and establish a frame 15 of placing for article with respect to fixed frame 13 opposite side groups, establish an assembly pulley 16 in second lifting unit, 11 bottom groups again, make support body 1 have mobile effect with this cunning group 16;

Continuous please the cooperation with reference to Fig. 7 to shown in Figure 9, earlier cooperate Fig. 7, Fig. 8 with Fig. 3, Fig. 4, when desire is adjusted support body 1 height, the runner 1242 of rotatable adjustment part 12, this runner 1242 makes inner sleeve 122 rotate relative to screw rod 1241 and outer tube 123 and makes screw rod 1241 and axle 1243 displacements, the screw rod 1241 of displacement and axle 1243 can make outer tube 123 relative inner sleeves 122 stretch, the internal mutually bar 101 of bar 102 was done lifting beyond crossbeam 121, the 121a that worn by axle 1243 then drove first lifting unit 10, reached the effect of adjusting support body 1 height whereby;

Again with Fig. 5, Fig. 6 cooperates Fig. 7, Fig. 8, when desire is adjusted blank 2 height, only need operation arrestment mechanism 113, externally bar 112 is flexible and reach the lifting effect mutually to utilize interior bar 111 that the linearity braking of arrestment mechanism 113 makes second lifting unit 11, and drive the lift adjustment that this fixed frame 13 is done the same displacement amount, reach the effect of adjusting blank 2 height, in the present embodiment, this arrestment mechanism 113 is to adopt the electronic cylinder that is provided with a push rod 1132, one end of this fixed frame 13 is to be fixed on the cross bar 1131 with cramp 114, by electronic cylinder push rod 1132 landing cross bars 1131, this cross bar 1131 is made the external mutually bar 112 of bar 111 in related the making flexible, simultaneously with the cramp 114 related variations that make fixed frame 13 do height and position;

Cooperate Fig. 9 with Fig. 7, Fig. 8 again, when desire is used projector 3, only need to dial pendulum spiral arm 1251, this spiral arm 1251 is rotating shaft with axle sleeve 125, this rotating shaft screw rod 1241 mechanisms pivot relatively makes spiral arm 1251 relative support body 1 pivots pendulum (putting to blank 2 fronts as present embodiment), and this spiral arm 1251 also can cooperate first lifting unit 10 and the length adjustment of self to change projection vector.

Characteristics of the present utility model are that the lifting structure of support body 1 adopts the fixing cylinder body that reaches of threaded engagement to advance the support structure power of fixedly strengthening support body 1, can not glide when making support body 1 lifting because of the weight compressing of own wt, blank 2 weight or attachment devices such as projector 3, mobile computer to both take the altitudes, and support body 1 is provided with assembly pulley 16, so difficult problem that does not have carrying or move, adding upper frame 1 also can plug-in projector 3 and mobile computer, perhaps place the article that need, more increase its functional and practicality with table frame 15.

Claims

1. a blank shelf structure is characterized in that, it is a support body, and this support body first half forms one first lifting unit, and Lower Half then forms one second lifting unit, and this first, second lifting unit is socketed to form with inside and outside bar;

This support body comprises an adjustment part, this adjustment part one end with the crossbeam cross-over connection between first lifting unit, this adjustment part still comprises the inside and outside sleeve pipe of establishing with the beam vertical group, wear a spiral shell rotation mechanism and an axle sleeve that is sheathed on spiral shell rotation mechanism one end of inside and outside sleeve pipe, this axle sleeve is between between crossbeam, this spiral shell rotation mechanism can make inside and outside sleeve pipe, and arbitrary relatively another is flexible, and drives first lifting unit with crossbeam and do lifting with inside and outside bar; This axle sleeve is extended with the spiral arm for projector's setting, extension type, and this axle sleeve screw mechanism pivot relatively makes the relative support body pivot pendulum of spiral arm to change projection vector;

This second lifting unit links in side a fixed frame that is provided with for blank, and the inside and outside bar of this second lifting unit is to do flexible and reach lifting with an arrestment mechanism, and drives the lift adjustment that this fixed frame is done the same displacement amount.

2. blank shelf structure according to claim 1, it is characterized in that: described spiral shell rotation mechanism comprises the runner being located at the screw rod in the inner sleeve and being located at the inner sleeve mouth, the threaded engagement of this screw rod and inner sleeve wall, and an end extends to an axle that wears crossbeam, this runner can order about the relative screw rod of inner sleeve and pivot, and makes screw rod borrow the screw thread upper and lower displacement and drives the relative inner sleeve lifting of outer tube.

3. blank shelf structure according to claim 1 is characterized in that: described arrestment mechanism is electronic cylinder or oil hydraulic cylinder or pneumatic cylinder, to do linear braking.

4. blank shelf structure according to claim 1 is characterized in that: described support body is established an assembly pulley in the second lifting unit bottom group.

5. blank shelf structure according to claim 1 is characterized in that: group is provided with a supporting part of placing for mobile computer on the described support body, and establishes a frame of placing for article with respect to fixed frame opposite side group.