CN210748176U

CN210748176U - Caster telescopic removes blank

Info

Publication number: CN210748176U
Application number: CN201921106895.1U
Authority: CN
Inventors: 潘诚君; 程扬方; 马剑羽
Original assignee: Deli Group Co Ltd
Current assignee: Deli Group Co Ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-06-16
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a truckle telescopic removes blank, including blank and two stands (1) that support the blank, the bottom of every stand (1) is equipped with a crossbeam (2), its characterized in that: the bottom of each beam (2) is provided with two foot pads (4), and each beam (2) is provided with two roller assemblies (3) which stretch up and down; the bottoms of the two roller assemblies (3) are lower than the bottoms of the two foot pads (4) when the two roller assemblies (3) are extended, and the two roller assemblies (3) can freely slide up and down at the bottom of the cross beam (2) when the two roller assemblies (3) are contracted. This remove whiteboard truckle when removing stretches out, the truckle when writing contracts into, makes whiteboard support direct and ground contact, and is more steady, adjust the convenience.

Description

Caster telescopic removes blank

Technical Field

The utility model relates to a teaching aid technical field specifically says a truckle telescopic removes blank.

Background

The bottom of a mobile white board in the market is provided with casters which are used for facilitating the movement. The whiteboard does not need to move when writing, and the locking mechanism of the caster is often not fixed enough, so that the whiteboard shakes when a user writes, and poor user experience is caused.

The prior net discloses a bracket of an electronic whiteboard, which comprises two side brackets with the same structure, wherein the two side brackets are connected through a telescopic cross beam, each side bracket comprises a stand column pipe, a foot bottom transverse pipe and an inclined strut pipe, the stand column pipe is vertically fixed on the foot bottom transverse pipe, the inclined strut pipes are connected between the stand column pipe and the foot bottom transverse pipe in an inclined angle mode, the connecting position of the inclined strut pipes and the stand column pipe is over half of the height of the stand column pipe, the stability of the bracket is enhanced, the stand column pipe is provided with a plurality of holes for fixing the whiteboard and used for hanging electronic whiteboards with different sizes and adjusting the hanging height of the electronic whiteboard, the telescopic cross beam comprises a left cross rod, a right cross rod and an intermediate connecting piece, one end of each cross rod is connected with the stand column pipe, the other end of each cross rod is provided with a screw hole for fixing a bolt, the intermediate connecting piece is provided with a long hole with the, so as to be convenient for disassembly, and the middle connecting piece is of a U-shaped structure with the middle part capable of penetrating through the cross rod. Two foot pads capable of rotating to adjust the height are respectively installed at two ends of the bottom of the transverse tube of the sole, the height of the foot pads capable of rotating to adjust the height can ensure that the white board cannot shake under the condition of uneven ground surface, two brake trundles are installed in the middle, the free moving support is realized, and the whole structure is stable when no external force acts on the white board.

The above whiteboard structure has two disadvantages: 1. through adjusting two brake truckles, then realize locking blank through the brake truckle, this structural adjustment is inconvenient, needs to brake the truckle alone, and after braking, the sole is violently managed has four points and ground contact moreover to can cause unstably, cause and rock when using. 2. Install two callus on the sole of rotatable height-adjusting respectively at horizontal bottom of the pipe both ends of sole, and this callus on the sole needs manual rotation to adjust, can't guarantee moreover that two callus on the sole can once only adjust unified height, the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a truckle stretches out when removing, the truckle is retracted when writing into, makes the blank support direct and ground contact, more steady, adjust convenient truckle telescopic removal blank.

The technical scheme of the utility model is, provide a truckle telescopic removes blank with following structure, including blank and two stands that support the blank, the bottom of every stand is equipped with a crossbeam, its characterized in that: the bottom of each beam is provided with two foot pads, and each beam is provided with two roller assemblies which stretch up and down; the bottoms of the two roller assemblies are lower than the bottoms of the two foot pads when the two roller assemblies are extended, and the two roller assemblies freely slide up and down at the bottom of the cross beam when the two roller assemblies are contracted.

Each beam is provided with a deflector rod and a drive plate, the deflector rod is fixed with the drive plate, the drive plate is connected to the beam in a sliding mode, the bottom of the drive plate is provided with at least one notch with an opening facing the drive plate, and the top of one of the roller assemblies of each beam retracts into the notch when the roller assemblies retract.

The top of the other roller assembly of each cross beam retracts into the cavity between the end of the drive plate and the cross beam when retracted.

The bottom of the driving plate is provided with two driving inclined planes which respectively drive the roller assemblies and are arranged along the sliding direction, one driving inclined plane is positioned on the side surface of the notch, and the other driving inclined plane is positioned at the end part of the driving plate.

Two supports are fixed on each cross beam, at least one sliding rod is fixed on the connecting seat at the top of each group of roller assemblies, each sliding rod is connected in corresponding long holes of two side plates of one support in a sliding mode, the long holes are arranged up and down, and the driving plates slide between the bottoms of the top plates of the supports and the top of the connecting seat.

The top of the shifting lever penetrates through the long groove on the top plate of the cross beam and extends out of the cross beam.

And a cover plate fixed with the shift lever is covered at the top of the long slot.

After the structure more than adopting, the utility model has the advantages of it is following: by means of up-and-down stretching of the two roller assemblies, when the whiteboard needs to move, the two roller assemblies stretch downwards to enable the bottoms to be lower than the bottoms of the two foot pads, and even if the roller assemblies are in contact with the ground, the foot pads are not in contact with the ground, the whiteboard can move normally; when the blank need not remove, two wheel components freely slide from top to bottom in the crossbeam when the shrink state, and the upper portion of truckle is kept away the sky this moment, and the truckle can the up-and-down motion, and truckle and callus on the sole contact ground simultaneously this moment because the empty is kept away on truckle upper portion, and the gravity of blank is whole to be concentrated on the callus on the sole on both sides, and the blank is fixed this moment, rocks when effectively reducing the blank and writing, and the stationarity is good. And two roller assemblies of the structure synchronously extend downwards or contract upwards, so that the adjustment is convenient.

As an improvement, a deflector rod and a drive plate are arranged on each cross beam, the deflector rod is fixed with the drive plate, the drive plate is connected to the cross beams in a sliding mode, at least one notch with an opening facing the bottom of the drive plate is arranged, one of the roller assemblies of each cross beam retracts into the notch in a retraction state, and the roller assemblies are driven through the deflector rod and the drive plate, so that the operation is simple, and the roller assemblies can be guaranteed to be provided with accommodating spaces when retracting upwards.

As an improvement, the top of another roller assembly of each cross beam retracts to the end of the driving plate and the cavity of the cross beam when the roller assemblies retract, so that a gap is not required to be added on the driving plate, and the structure is more compact.

As an improvement, two driving inclined planes which respectively drive the roller assemblies and are arranged along the sliding direction are arranged at the bottom of the driving plate, one driving inclined plane is positioned on the side surface of the notch, the other driving inclined plane is positioned at the end part of the driving plate, and the two groups of roller assemblies can be synchronously driven through the driving inclined planes, so that the driving plate can synchronously drive the two groups of roller assemblies.

As an improvement, two supports are fixed on each cross beam, at least one sliding rod is fixed on a connecting seat at the top of each group of roller assemblies, each sliding rod is connected in corresponding long holes of two side plates of one support in a sliding mode, the long holes are arranged up and down, and the driving plate slides between the bottom of a top plate of each support and the top of the connecting seat, so that the roller assemblies have a positioning and guiding effect when being contracted.

As an improvement, the top of the shifting lever passes through the long groove on the top plate of the cross beam and extends out of the cross beam, and a user can operate the shifting lever on the top of the cross beam.

As an improvement, the top of the long groove is covered with a cover plate fixed with the deflector rod, the long groove on the top plate of the beam can be shielded, exposure is avoided, and potential safety hazards are eliminated.

Drawings

Fig. 1 is a schematic view of the movable white board with retractable casters of the present invention.

Fig. 2 is an exploded view of the components connected to the cross beam according to the present invention.

Fig. 3 is a schematic structural view of the caster wheel of the present invention.

Fig. 4 is a schematic view of the internal structure of fig. 3.

Fig. 5 is a schematic structural view of the retractable caster of the present invention.

Fig. 6 is a schematic view of the internal structure of fig. 5.

Fig. 7 is an exploded view of the drive plate of the present invention.

Fig. 8 is a schematic structural view of the inside of the cross beam of the present invention.

Shown in the figure:

1. the device comprises a stand column, 2, a cross beam, 2.1, an elongated slot, 3, a roller assembly, 4, a foot pad, 5, a deflector rod, 6, a driving plate, 6.1, a notch, 6.2, a driving inclined plane, 7, a support, 7.1, a long hole, 8, a connecting seat, 9, a sliding rod, 10 and a cover plate.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-8, the caster wheel retractable mobile whiteboard of the present invention comprises a whiteboard and two upright posts 1 supporting the whiteboard, wherein the tops of the two upright posts 1 are fixed to the whiteboard, the bottom of each upright post 1 is provided with a cross beam 2, the bottom of each cross beam 2 is provided with two foot pads 4, and each cross beam 2 is provided with two roller assemblies 3 extending up and down; the bottoms of the two roller assemblies 3 are lower than the bottoms of the two foot pads 4 when the two roller assemblies 3 are extended, and the two roller assemblies 3 can freely slide up and down at the bottom of the cross beam 2 when the two roller assemblies 3 are contracted, namely the tops of the roller assemblies 3 are not restrained and can slide up and down freely.

Each beam 2 is provided with a deflector rod 5 and a drive plate 6, the deflector rod 5 is fixed with the drive plate 6, the drive plate 6 is connected to the beam 2 in a sliding mode, the bottom of the drive plate 6 is provided with at least one notch 6.1 with an opening facing the opening, and the top of one of the roller assemblies 3 of each beam 2 retracts into the notch 6.1 when the beam contracts. The upper part of another roller assembly 3 of each cross beam 2 is retracted into the end part of the driving plate 6 and the cavity of the cross beam 2 in a retracted state, so that the two roller assemblies 3 slide upwards in the retracted state and have accommodating spaces.

The bottom of the driving plate 6 is provided with two driving inclined planes 6.2 which respectively drive the roller assemblies 3 and are arranged along the sliding direction, one driving inclined plane 6.2 is positioned on the side surface of the notch 6.1, and the other driving inclined plane 6.2 is positioned at the end part of the driving plate 6. The driving bevel 6.2 can push the roller assembly 3 to extend downwards, so that the roller assembly 3 is contacted with the ground.

Two supports 7 are fixed on each cross beam 2, two sliding rods 9 are fixed on a connecting seat 8 at the top of each group of roller assemblies 3, each sliding rod 9 is connected in corresponding long holes 7.1 of two side plates of one support 7 in a sliding mode, the long holes 7.1 are arranged up and down, and the driving plate 6 slides between the bottom of a top plate of each support 7 and the top of the connecting seat 8. The slide rod 9 and the long hole 7.1 play a guiding role.

The top of the shift lever 5 passes through the long groove 2.1 on the top plate of the beam 2 and extends out of the beam 2.

The top of the long groove 2.1 is covered with a cover plate 10 fixed with the shift lever 5, and the width of the cover plate 10 is larger than that of the long groove 2.1 on the top plate of the beam 2, so that the long groove 2.1 is prevented from being exposed.

The working principle is as follows:

as shown in fig. 3 and 4, when the whiteboard needs to be moved: the deflector rod moves leftwards, the deflector rod drives the purple drive plate to move leftwards, the caster is jacked up by the drive plate at the moment and cannot move upwards, and the bottom surface of the caster is higher than the foot pads on the two sides, so that the caster can land on the movable white board.

As shown in fig. 5 and 6, when the whiteboard does not need to be moved and fixed for writing, as long as the shift lever moves leftwards, the drive plate is driven to move rightwards, the upper part of the caster is kept away, the caster can move up and down, the caster and the foot pad contact the ground simultaneously, because the upper part of the caster is kept away, the gravity of the whiteboard is completely concentrated on the foot pads on the two sides, and the whiteboard is fixed at the moment, so that the whiteboard is effectively reduced to shake when being written.

Claims

1. The utility model provides a truckle telescopic removes blank, includes blank and two stands (1) that support the blank, and the bottom of every stand (1) is equipped with a crossbeam (2), its characterized in that: the bottom of each beam (2) is provided with two foot pads (4), and each beam (2) is provided with two roller assemblies (3) which stretch up and down; the bottoms of the two roller assemblies (3) are lower than the bottoms of the two foot pads (4) when the two roller assemblies (3) are extended, and the two roller assemblies (3) can freely slide up and down at the bottom of the cross beam (2) when the two roller assemblies (3) are contracted.

2. The mobile whiteboard with retractable casters as recited in claim 1, further comprising: be equipped with driving lever (5) and drive plate (6) on every crossbeam (2), driving lever (5) are fixed with drive plate (6), drive plate (6) sliding connection is on crossbeam (2), the bottom of drive plate (6) is equipped with at least one opening towards breach (6.1), and one of them roller components (3) of every crossbeam (2) when the shrink the top in contracting breach (6.1).

3. The mobile whiteboard with retractable casters as recited in claim 2, wherein: when the other roller assembly (3) of each cross beam (2) is contracted, the top part of the other roller assembly retracts into the cavity between the end part of the driving plate (6) and the cross beam (2).

4. The mobile whiteboard with retractable casters as recited in claim 2, wherein: the bottom of the driving plate (6) is provided with two driving inclined planes (6.2) which respectively drive the roller assemblies (3) and are arranged along the sliding direction, one driving inclined plane (6.2) is positioned on the side surface of the notch (6.1), and the other driving inclined plane (6.2) is positioned at the end part of the driving plate (6).

5. The mobile whiteboard with retractable casters as recited in claim 2, wherein: be fixed with two supports (7) on every crossbeam (2), be fixed with at least one slide bar (9) on connecting seat (8) at the top of every group wheel components (3), every equal sliding connection of slide bar (9) is in corresponding slot hole (7.1) of the both sides board of a support (7), slot hole (7.1) are along setting up from top to bottom, drive plate (6) slide between the top of the roof bottom of support (7) and connecting seat (8).

6. The mobile whiteboard with retractable casters as recited in claim 2, wherein: the top of the shifting lever (5) penetrates through the long groove (2.1) on the top plate of the cross beam (2) and extends out of the cross beam (2).

7. The mobile whiteboard with retractable casters as recited in claim 6, wherein: the top of the long groove (2.1) is covered with a cover plate (10) fixed with the deflector rod (5).