CN218571794U - Lifting white board - Google Patents

Abstract

The application discloses lift blank relates to the office equipment field, optimizes the lifting unit structure, and the operation blank goes up and down conveniently, labour saving and time saving. This blank includes blank and lifting unit, lifting unit includes riser and lifting support, the blank is connected with lifting support, lifting support cup joints with the riser, lifting support and riser sliding fit, lifting support can slide along vertical direction in the riser, be equipped with the locating part that is used for restricting lifting support gliding in the riser, lifting support is equipped with the guide structure who is used for connecting the locating part, the locating part is connected with guide structure and makes lifting support only can vertically upwards slide, the riser is equipped with the press structure who is connected with the locating part, press the structure and be used for driving the locating part and break away from guide structure and make lifting support free fall in the riser.

Description

Lifting white board

Technical Field

The application relates to the field of office equipment, in particular to a lifting white board.

Background

The whiteboard functions like a blackboard, and is a repeatedly erasable writing tool, which is generally used for teaching, conference discussion, or personal and family recording. The height of a panel can be adjusted by the existing H-shaped single-plate lifting white board on the market, and the white board is connected with the H-shaped upright posts in a sliding mode through sliding mechanisms on two side edges.

But the current elevating structure of liftable blank is complicated, and the blank carries out lift complex operation, for example need make the blank can move about from top to bottom through unscrewing the knob before some blank goes up and down, and the rethread screws up the knob and makes the blank fix at a certain high position, and the operation is very inconvenient, wastes time and energy.

Disclosure of Invention

An object of this application is to provide a lift blank optimizes the lifting unit structure, and the operation blank goes up and down conveniently, labour saving and time saving.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: the utility model provides a lifting white board, includes blank and lifting unit, lifting unit includes riser and lifting support, the blank with lifting support connects, lifting support with the riser cup joints, lifting support with riser sliding fit, be equipped with in the riser and be used for the restriction the locating part of lifting support gliding, lifting support is equipped with and is used for connecting the guide structure of locating part, the locating part with guide structure connects the messenger lifting support only can upwards slide, the riser be equipped with the press structure that the locating part is connected, press the structure and be used for the drive the locating part breaks away from guide structure and makes lifting support is in free fall in the riser.

Compared with the prior art, the application has the advantages that: the white board is connected with the lifting support, and the lifting support moves in the vertical direction in the vertical pipe to drive the white board to lift. The guide structure arranged on the lifting support is connected with the limiting piece in the vertical pipe, so that the lifting support can only vertically slide upwards, and the lifting support cannot slide downwards after being pulled upwards, and therefore, the white board connected with the lifting support cannot slide downwards after being lifted upwards and then loosened; in addition, the limiting part can be driven to be separated from the guide structure through the pressing structure, so that the lifting support can fall freely in the vertical pipe under the action of gravity, the white board can descend, and the whole lifting process is convenient to operate, time-saving and labor-saving.

In some embodiments of this application, lifting support is equipped with the guide way, guide structure is including locating the guide way, at least one side is equipped with sawtooth edge in the both sides of guide way, sawtooth edge have a plurality of be used for with the tooth's socket of locating part joint, it is a plurality of the tooth's socket is followed guide way length direction interval arrangement.

In some embodiments of the present application, the two sides of the guide groove are both provided with the serrated edges, and the two serrated edges are arranged in parallel and symmetrically.

In some embodiments of the present application, the two ends of the limiting part are respectively connected to two tooth sockets on the sawtooth edge, the two ends of the limiting part can be elastically stretched in the width direction of the guide groove, and the two ends of the limiting part can be contracted to the center of the limiting part.

In some embodiments of the present application, the limiting member includes a fixing base and two clamping connectors, the two clamping connectors are movably sleeved on two sides of the fixing base respectively, two the clamping connectors are internally provided with a first elastic member abutted against the fixing base, and the first elastic member is oriented to an acting force applied by the clamping connectors and is consistent with the width direction of the guide groove.

In some embodiments of the present application, the guiding structure includes a first inclined plane located on the sawtooth edge, and the bayonet joint has a second inclined plane contacting with the first inclined plane, and the first inclined plane presses the second inclined plane to make the bayonet joint contract towards the fixing base.

In some embodiments of the present application, the pressing structure includes an adjusting button, the adjusting button is connected to a pressing shaft, the pressing shaft is movably inserted into the vertical pipe and connected to the fixing base, the pressing shaft is externally sleeved with a second elastic member, one end of the second elastic member abuts against the inside of the adjusting button, the other end of the second elastic member abuts against the outer wall surface of the vertical pipe, the pressing shaft moves on the vertical pipe in the axial direction of the pressing shaft to compress the second elastic member, and the pressing shaft presses the fixing base to separate the limiting member from the tooth socket.

In some embodiments of the present application, the pressing shaft has an elliptical axial cross-section, and the stem has an axial hole fitted with the pressing shaft, the axial hole being elliptical.

In some embodiments of the present application, the first inclined surface and the second inclined surface are inclined in a downward direction.

In some embodiments of the present application, the lifting bracket is connected to a pulley.

In some embodiments of the present application, the whiteboard comprises a fixing member, the fixing member is fixedly connected to the whiteboard through a bolt assembly, and the fixing member is detachably connected to the lifting support.

Drawings

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a schematic view of a connection structure of the lifting assembly and the whiteboard of the present application;

FIG. 3 is an exploded view of a portion of the lift assembly;

FIG. 4 is a schematic view of a connection structure of a riser and a lifting bracket;

FIG. 5 is an exploded view of a position limiting member;

FIG. 6 is a schematic view of an internal structure of a position-limiting member;

FIG. 7 is a schematic view of the connection of the lift assembly to the push structure of the present application;

FIG. 8 is an exploded view of the push mechanism;

fig. 9 is a schematic structural view of the limiting member in the guide groove.

In the figure: 1. a white board; 2. a riser; 3. a lifting support; 4. a pulley; 5. a fixing member; 6. a chute; 501. a shaft end; 7. a limiting member; 8. a guide groove; 9. a sawtooth edge; 10. a tooth socket; 701. a fixed seat; 702. a clamping head; 11. a first elastic member; 12. a first inclined plane; 13. a second inclined plane; 14. an adjustment button; 15. pressing a shaft; 16. a second elastic member; 17. right angle.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations and positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1-9, a lifting whiteboard comprises a whiteboard 1 and lifting assemblies disposed on two sides of the whiteboard 1, wherein the two lifting assemblies are connected with the whiteboard 1 to form an "H" shaped structure.

The lifting assembly comprises a vertical pipe 2 and a lifting support 3, the lifting support 3 is sleeved in the vertical pipe 2, the lifting support 3 slides in the vertical pipe 2, the lifting support 3 is movably matched with the vertical pipe 2, the lifting support 3 can slide in the vertical pipe 2 along the vertical direction, and the lifting support 3 is connected with a pulley 4 to reduce the sliding friction of the lifting support 3.

The 1 left and right sides of blank all links there is mounting 5, and mounting 5 passes through bolt assembly rigid coupling in blank 1, and riser 2 is erectly the form, is equipped with spout 6 on the lateral wall of riser 2, and the length direction of spout 6 is parallel with vertical direction, and mounting 5 has a shaft end 501, and this shaft end 501 passes spout 6 and lifting support 3 fixed connection, and this shaft end 501 can slide along vertical direction at spout 6. The white board 1 is lifted upwards, so that the fixing piece 5 drives the lifting bracket 3 to slide upwards.

Be equipped with in the riser 2 and be used for restricting the locating part 7 that lifting support 3 glided, be equipped with the guide structure who is used for connecting locating part 7 in lifting support 3, when locating part 7 is connected with guide structure, lifting support 3 only can be along the vertical upward activity of unidirectional. The riser 2 is externally connected with a pressing structure, the pressing structure is connected with the limiting piece 7, the pressing structure is used for driving the limiting piece 7 to be separated from the guide structure, and when the limiting piece 7 is separated from the guide structure, the lifting support 3 freely falls in the riser 2 under the action of gravity.

Be equipped with guide way 8 in the lifting support 3, locating part 7 is located guide way 8, and 8 length direction of guide way are parallel with vertical direction, and guide structure is including the sawtooth edge 9 of locating 8 both sides of guide way, and two sawtooth edge 9 parallel symmetrical arrangement, sawtooth edge 9 have a plurality of tooth's socket 10 that are used for with locating part 7 joint, and 8 length direction interval arrangements are followed to a plurality of tooth's sockets 10.

The two ends of the limiting part 7 are respectively clamped with the tooth grooves 10 on the two sawtooth edges 9, the two ends of the limiting part 7 can elastically stretch in the width direction of the guide groove 8, and the two ends of the limiting part 7 can contract towards the center of the limiting part 7.

The limiting member 7 includes a fixing base 701 and two clamping connectors 702, the two clamping connectors 702 are respectively movably sleeved on two sides of the fixing base 701, first elastic members 11 abutted against the fixing base 701 are respectively arranged in the two clamping connectors 702, each first elastic member 11 includes a spring, and the direction of the acting force applied by the first elastic member 11 to the clamping connector 702 is consistent with the width direction of the guide groove 8.

The guiding structure includes a first inclined surface 12 located on the sawtooth edge 9, a second inclined surface 13 contacting with the first inclined surface 12 is provided on the card connector 702, and the first inclined surface 12 presses the second inclined surface 13 to make the card connector 702 shrink toward the fixing seat 701.

The lifting support 3 vertically slides upwards, the first inclined surface 12 on the sawtooth edge 9 pushes against the second inclined surface 13, so that the bayonet joint 702 on the limiting piece 7 contracts towards the inside of the fixed seat 701, the first elastic piece 11 is compressed, the limiting piece 7 is separated from the position of the current tooth socket 10 until the lifting support 3 stops moving upwards, and meanwhile, the bayonet joint 702 on the limiting piece 7 is clamped into the tooth socket 10 again under the action of the first elastic piece 11.

The pressing structure comprises an adjusting button 14, the adjusting button 14 is connected with a pressing shaft 15, the pressing shaft 15 is movably inserted in the stand pipe 2 and connected with the fixed seat 701, a second elastic piece 16 is sleeved outside the pressing shaft 15, one end of the second elastic piece 16 is abutted in the adjusting button 14, the other end of the second elastic piece 16 is abutted on the outer wall surface of the stand pipe 2, the pressing shaft 15 moves on the stand pipe 2 along the axial direction of the pressing shaft 15 to compress the second elastic piece 16, and the pressing shaft 15 is abutted against the fixed seat 701 to enable the limiting piece 7 to be separated from the tooth groove 10.

The shaft section of the pressing shaft 15 is oval, the shaft hole formed by the vertical pipe 2 and the pressing shaft 15 is oval, the oval shaft hole is matched with the pressing shaft 15, rotation is avoided when the adjusting button 14 is pressed, after the adjusting button 14 is loosened, the adjusting button 14 resets, the limiting part 7 returns to the guide structure, and the limiting part 7 can be clamped into the tooth groove 10 again.

The adjustment button 14 has a concave-convex structure, which is a concave and convex portion on the adjustment button 14 for mounting and dismounting on the stand pipe 2.

The sawtooth edge 9 further has a right angle 17 for connecting with the limiting member 7, and the right angle 17 is connected with the limiting member 7 for limiting the downward sliding of the lifting bracket 3.

The whiteboard 1 rises: the user lifts up whiteboard 1, whiteboard 1 drives fixing piece 5 to move vertically upwards, and shaft end 501 of fixing piece 5 drives lifting support 3 to move vertically upwards in stand pipe 2 until whiteboard 1 rises to the position of the height required by the user. When the whiteboard 1 is lifted upwards, the whiteboard 1 applies a vertically upward acting force to the fixing member 5, the lifting support 3 moves upwards through the fixing member 5, when the lifting support 3 moves upwards, the first inclined surface 12 on the sawtooth edge 9 on the guide groove 8 presses against the clamping head 702 on the limiting member 7, so that the clamping head 702 contracts inwards the fixing seat 701, and the limiting member 7 is separated from the tooth socket 10 on the sawtooth edge 9, but the sawtooth edge 9 has a right angle 17 for connecting with the limiting member 7, so that the lifting support 3 can only slide upwards singly, and when the whiteboard 1 is lifted to a preset height position, the limiting member 7 on the stand pipe 2 is clamped into the tooth socket 10 on the sawtooth edge 9 again.

The whiteboard 1 descending process: when a user presses the adjusting button 14 towards the interior of the stand pipe 2, the adjusting button 14 drives the pressing shaft 15 to move towards the interior of the stand pipe 2, the second elastic part 16 is compressed, the pressing shaft 15 pushes the limiting part 7 to move towards the interior of the lifting support 3, so that the limiting part 7 is separated from the guide structure, the lifting support 3 freely falls under the action of gravity and drives the fixing part 5 and the white board 1 connected with the fixing part 5 to fall, when the white board 1 falls to a position with the height required by the user, the adjusting button 14 is released, the compressed second elastic part 16 drives the adjusting button 14 and the pressing shaft 15 connected with the adjusting button 14 to reset, and the pressing shaft 15 resets and pulls the limiting part 7 to return to the guide structure and is clamped into the tooth socket 10 again, so that the white board 1 is fixed at the current position.

The foregoing has described the principles, principal features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (10)

1. The utility model provides a lift blank, includes blank (1) and lifting unit, lifting unit includes riser (2) and lifting support (3), blank (1) with lifting support (3) are connected, lifting support (3) with riser (2) cup joint, lifting support (3) with riser (2) sliding fit, its characterized in that: be equipped with in riser (2) and be used for the restriction locating part (7) that lift support (3) gliding, lift support (3) are equipped with and are used for connecting the guide structure of locating part (7), locating part (7) with guide structure connects and makes lift support (3) only can upwards slide, riser (2) be equipped with the structure of pressing that locating part (7) are connected, press the structure and be used for driving locating part (7) break away from guide structure and make lift support (3) free fall in riser (2).

2. A lifting whiteboard according to claim 1, wherein: lifting support (3) are equipped with guide way (8), guide structure is including locating guide way (8), at least one side is equipped with sawtooth limit (9) in the both sides of guide way (8), sawtooth limit (9) have a plurality of be used for with tooth's socket (10) of locating part joint, it is a plurality of tooth's socket (10) are followed guide way (8) length direction interval arrangement.

3. A lifting whiteboard according to claim 2, wherein: both sides of the guide groove (8) are provided with the sawtooth edges (9), and the sawtooth edges (9) are symmetrically arranged in parallel.

4. A lifting whiteboard according to claim 3, wherein: the both ends of locating part (7) respectively with two tooth's socket (10) joint on sawtooth edge (9), the both ends of locating part (7) can be in guide way (8) width direction goes up elasticity flexible, the both ends of locating part (7) can to the center shrink of locating part (7).

5. The lifting whiteboard of claim 4, wherein: the limiting piece (7) comprises a fixed seat (701) and two clamping joints (702), the two clamping joints (702) are movably sleeved on two sides of the fixed seat (701) respectively, first elastic pieces (11) abutted to the fixed seat (701) are arranged in the two clamping joints (702), and the direction of acting force applied by the first elastic pieces (11) to the clamping joints (702) is consistent with the width direction of the guide groove (8).

6. The lifting whiteboard of claim 5, wherein: the guide structure comprises a first inclined surface (12) positioned on the sawtooth edge (9), a second inclined surface (13) in contact with the first inclined surface (12) is arranged on the clamping connector (702), and the first inclined surface (12) presses the second inclined surface (13) to enable the clamping connector (702) to contract towards the fixed seat (701).

7. The lifting whiteboard of claim 5, wherein: the pressing structure comprises an adjusting button (14), the adjusting button (14) is connected with a pressing shaft (15), the pressing shaft (15) is movably inserted into the vertical pipe (2) and connected with the fixed seat (701), a second elastic piece (16) is sleeved outside the pressing shaft (15), one end of the second elastic piece (16) abuts against the inside of the adjusting button (14), the other end of the second elastic piece (16) abuts against the outer wall surface of the vertical pipe (2), the pressing shaft (15) is moved on the vertical pipe (2) along the axial direction of the pressing shaft (15) to compress the second elastic piece (16), and the pressing shaft (15) presses the fixed seat (701) to enable the limiting piece (7) to be separated from the tooth groove (10).

8. The lifting whiteboard of claim 7, wherein: the shaft section of the pressing shaft (15) is oval, the vertical pipe (2) is provided with a shaft hole matched with the pressing shaft (15), and the shaft hole is oval.

9. A lifting whiteboard according to claim 6, wherein: the first inclined surface (12) and the second inclined surface (13) are inclined downwards.

10. A lifting whiteboard according to claim 1, wherein: including mounting (5), mounting (5) pass through bolt assembly rigid coupling on blank (1), mounting (5) with lifting support (3) can be dismantled and be connected.

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