CN214302775U - Lifting scaffold - Google Patents

Abstract

The utility model belongs to the technical field of scaffold device, in particular to a lifting scaffold, which comprises a bearing plate and supporting parts connected to four corners of the bearing plate, wherein each supporting part comprises a first rod body, a second rod body in the first rod body and a driving disk coaxially sleeved on the second rod body, the second rod body is sleeved with a rotating part, and the rotating part is connected to the bearing plate; the supporting part also comprises a connecting piece for connecting the four driving discs, and the connecting piece is used for ensuring that the four driving discs synchronously rotate. The utility model is used for solve the current scaffold frame and be not convenient for height-adjusting's technical problem.

Description

Lifting scaffold

Technical Field

The utility model belongs to the technical field of scaffold device, concretely relates to lifting scaffold.

Background

In the construction process of a building, in order to ensure that each construction process is smoothly carried out, a scaffold is generally required to be used. When a construction at a low height or an indoor construction is performed, a small door type scaffold is generally used. The door type scaffold is small in size, light in weight and convenient to transfer.

However, the currently used door-type scaffold is of a highly fixed type, and is not convenient to be applied to construction at different heights; or the height is adjusted through overlapping layer by layer, so that the height adjustment is troublesome, time and labor are wasted, and the practicability is not strong.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model aims to provide a lifting foot rest for solve the current technical problem of height-adjusting not convenient for of scaffold.

In order to achieve the above purpose, the technical scheme of the utility model is that: a lifting scaffold comprises a loading plate and supporting parts connected to four corners of the loading plate, wherein each supporting part comprises a first rod body, a second rod body in threaded connection with the first rod body and a driving disc coaxially sleeved on the second rod body; the supporting part also comprises a connecting piece for connecting the four driving discs, and the connecting piece is used for ensuring that the four driving discs synchronously rotate.

Preferably, the supporting part further comprises a protection cylinder coaxially sleeved outside the second rod body, the protection cylinder is connected to the rotating part, and the bearing plate is connected to the protection cylinder.

Preferably, the supporting portion further includes a stopping mechanism, the stopping mechanism includes a stopping block disposed at an end of the first rod and a sliding slot disposed in the protective cylinder and in stop fit with the stopping block, and the stopping block passes through the sliding slot along a radial direction of the protective cylinder.

Preferably, at least one end of the second rod body is connected with a rocking handle.

Preferably, the driving disc is a sprocket.

Preferably, the connecting piece adopts a transmission chain matched with the chain wheel.

Preferably, the scaffolding further comprises rollers connected to ends of the support.

Adopt the utility model discloses technical scheme's beneficial effect does:

the height of the four supporting parts of the supporting bearing plate can be adjusted through the thread fit between the first rod body and the second rod body, so that the scaffold can be adjusted in a stepless manner; through be provided with the driving-disc on the second body of rod to connect four driving-discs through the connecting piece, make four driving-discs rotate in step, and then realize the synchro-control of four supporting parts, guaranteed the levelness among the loading board accommodation process, promote the practicality.

Drawings

FIG. 1 is a front view of an embodiment of a lifting scaffold;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

fig. 3 is a top view of an embodiment of a lifting scaffold.

In fig. 1-3, 1-bearing plate, 2-supporting part, 21-rocking handle, 211-handle, 22-driving chain, 23-chain wheel, 24-bearing, 25-stopping block, 26-protective barrel, 27-first rod, 271-threaded hole, 28-second rod, 281-external thread and 3-roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments, and do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The specific embodiment is as follows:

embodiment 1, as shown in fig. 1 to 3, a lifting scaffold includes a loading plate 1 and a supporting part 2. The supporting parts 2 are four, and the four supporting parts 2 are connected to four corners of the bearing plate 1.

The support portion 2 includes a first rod 27, a second rod 28 and a driving disk. The first rod 27 is provided with a threaded hole 271 extending axially along the first rod 27. The second rod 28 is externally provided with an external thread 281 matching with the threaded hole 271. The second rod 28 is sleeved in the threaded hole 271, so that the second rod 28 is connected with the first rod 27 in a threaded manner. By rotating the second rod 28, the external thread 281 interacts with the threaded hole 271, thereby extending and retracting the first rod 27 and the second rod 28.

The second rod 28 is connected to a rotating member near the upper end thereof, and the rotating member is sleeved outside the second rod 28. The rotating member is connected to the carrier plate 1. As an example of the present embodiment, the rotating member employs the bearing 24. The bearing 24 has small rotation resistance and is convenient and easy to obtain.

Above the bearing 24, a driving disk is coaxially sleeved outside the second rod 28, and the driving disk is fixedly connected with the second rod 28, so that the driving disk and the second rod 28 rotate synchronously. And the four driving disks are connected through connecting pieces and are used for ensuring the synchronous rotation of the four driving disks. As an example of this embodiment, the drive disc employs a sprocket 23, while the link employs a drive chain 22. When any one of the chain wheels 23 rotates, the other chain wheels 23 synchronously rotate under the driving action of the transmission chain 22.

This embodiment a lifting foot rest is when using, and the user stands and carries out the construction on loading board 1, and the convenience is to the eminence construction. When waiting to be under construction the height and changing, rotating one of them second body of rod 28, the sprocket 23 that corresponds rotates thereupon, and under the drive effect of driving chain 22, other sprockets 23 rotate in step, and sprocket 23 then drives other second bodies of rod 28 and rotates, realizes the flexible between the second body of rod 28 and the first body of rod 27, and then realizes the regulation to the height of loading board 1, and the convenience is under construction to different heights. The height of the scaffold is adjusted through the matching of the internal thread and the external thread, and the adjustment is convenient; meanwhile, due to the arrangement of the chain wheel 23 and the transmission chain 22, the synchronous adjustment of the four supporting parts 2 is ensured, and further, the levelness of the bearing plate 1 in the adjusting process is ensured.

Further, the support 2 also comprises a protective cylinder 26. The protective sleeve 26 is fitted over the first rod 27 and the second rod 28. The upper end of the protective cylinder 26 is fixedly connected outside the bearing 24, and the bearing plate 1 is fixedly connected with the outer wall of the protective cylinder 26. When the first rod 27 is rotated, the protection cylinder 26 is not rotated, thereby improving safety.

Further, a stop block 25 is disposed at the upper end of the first rod 27, and the stop block 25 protrudes outward from the first rod 27. Meanwhile, a slide groove (not shown) is provided on the shield cylinder 26 to engage with the stopper 25, and the slide groove extends in the axial direction of the shield cylinder 26. The stop block 25 is extended out of the sliding groove and can slide up and down in the sliding groove. When the second rod 28 is rotated, the stop block 25 and the sliding groove are in stop fit to form a stop mechanism, and in the process that the second rod 28 extends and retracts in the first rod 27, the stop block 25 slides up and down in the sliding groove, so that the phenomenon that the first rod 27 rotates along with the second rod 28 is avoided, and the adjustment reliability is good.

Further, in order to facilitate the rotation of the second lever 28, a crank 21 is provided at an upper end of the second lever 28. More specifically, the rocking handle 21 is an L-shaped rod, one end of the rod is connected to the second rod 28, the other end of the rod is vertically upward, a rubber grip 211 is arranged at the upper end of the rocking handle 21, the rubber grip 211 has large friction force and is not easy to slip, and the gripping hand feeling is improved

Further, in order to facilitate the movement of the scaffolding, rollers 3 are further provided at the bottom of the support part 2. The roller 3 is attached to the bottom of the first rod 27. And the foot brake is arranged on the roller 3, so that the stability of the scaffold is ensured.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without the technical solutions of the present invention, or the present invention can be directly applied to other occasions without the improvements, and all are within the protection scope of the present invention.

Claims (7)

1. A lifting scaffold comprises a loading plate and supporting parts connected to four corners of the loading plate, and is characterized in that each supporting part comprises a first rod body, a second rod body in threaded connection with the first rod body and a driving disc coaxially sleeved on the second rod body, a rotating part is sleeved on the second rod body, and the rotating part is connected to the loading plate; the supporting part also comprises a connecting piece for connecting the four driving discs, and the connecting piece is used for ensuring that the four driving discs synchronously rotate.

2. The lifting scaffold according to claim 1, wherein the supporting portion further comprises a protective tube coaxially sleeved outside the second rod, the protective tube is connected to the rotating member, and the bearing plate is connected to the protective tube.

3. The lifting scaffold according to claim 2, wherein the support portion further comprises a stopping mechanism, the stopping mechanism comprises a stopping block disposed at an end of the first rod and a sliding slot disposed on the protecting tube and engaged with the stopping block, and the stopping block passes through the sliding slot along a radial direction of the protecting tube.

4. A lifting scaffold according to claim 3 wherein at least one of said second bars is connected at its end to a rocking handle.

5. A lifting scaffold according to any of claims 1 to 4, wherein the drive plate is a sprocket.

6. A lifting scaffold according to claim 5, wherein said links are in the form of a drive chain engaging said sprockets.

7. A lifting scaffold according to any of claims 1 to 4, comprising rollers attached to the ends of the support.

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