CN218931606U - Scissor support device for loading platform - Google Patents

Abstract

The utility model relates to a scissor support device for a loading platform, which comprises a canvas frame, an X-shaped telescopic frame and a telescopic driving mechanism, wherein the canvas frame comprises a plurality of canvas rods which are arranged at intervals in the up-down direction, and the canvas rods are used for fixing canvas; each hinge shaft on one side of the X-shaped telescopic frame is rotatably arranged on one canvas rod, and each hinge shaft on the other side is transversely and slidably arranged on the corresponding canvas rod; the telescopic driving mechanism comprises a screw rod, a nut block and a motor, wherein the screw rod is rotatably supported at the top end of the canvas frame and axially extends transversely, the nut block is in threaded connection with the screw rod and hinged to the top end of the other side of the X-shaped telescopic frame, and the motor is connected with the screw rod to drive the screw rod to rotate. The telescopic driving mechanism of the utility model occupies small space, and the two sides of the X-shaped telescopic frame are restrained by the canvas rods, so that the structure is stable.

Description

Scissor support device for loading platform

Technical Field

The utility model relates to the field of loading platforms, in particular to a scissor support device for a loading platform.

Background

When loading the bulk cargo, the loading platform pushes the bulk cargo to advance through a pushing device, X-shaped telescopic frames are arranged on the front side and the rear side of the pushing device, the X-shaped telescopic frames shrink upwards during pushing, and after the bulk cargo is covered by the material device, the X-shaped telescopic frames stretch out again and are blocked at least on the rear side of the bulk cargo.

However, the existing X-shaped expansion bracket is generally driven by an air cylinder, one end part of the air cylinder is hinged on a fixing piece, the other end part of the air cylinder is hinged with the X-shaped expansion bracket, and the X-shaped expansion bracket is driven to expand and contract by the expansion of the air cylinder. This is a way of doing so: 1. the cylinder is inclined, the occupied space is larger, and the two sides of the X-shaped expansion bracket are not restrained, so that the strength of the X-shaped expansion bracket is insufficient.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides the scissor supporting device for the loading platform, which has the advantages that the occupied space of a telescopic driving mechanism is small, two sides of an X-shaped telescopic frame are restrained by canvas rods, and the structure is stable.

In order to solve the technical problems, the technical scheme of the utility model is as follows: a scissors assembly for a loading platform, comprising:

the canvas frame comprises a plurality of canvas rods which are arranged at intervals in the up-down direction, and the canvas rods are used for fixing canvas;

each hinge shaft on one side of the X-shaped telescopic frame is rotatably arranged on one canvas rod, and each hinge shaft on the other side of the X-shaped telescopic frame is transversely and slidably arranged on the corresponding canvas rod;

the telescopic driving mechanism comprises a screw rod, a nut block and a motor, wherein the screw rod is rotatably supported at the top end of the canvas frame and axially extends transversely, the nut block is in threaded connection with the screw rod and hinged to the top end of the other side of the X-shaped telescopic frame, and the motor is connected with the screw rod to drive the screw rod to rotate.

Further, the canvas frame further comprises a bottom frame which is connected to the lowest canvas rod.

Further for ease of storage, the X-shaped telescoping rack is configured to be collapsible to fully nest within the base frame.

Further in order to prevent goods from leaning on X-shaped expansion bracket and canvas, install telescopic pushing equipment in the underframe, pushing equipment is used for promoting goods and moves dorsad canvas frame when it stretches out.

Further provided is a specific structure of a pushing mechanism, comprising:

a push plate;

the bidirectional screw rod is rotatably supported on the bottom frame;

two nuts, each nut is connected with one end part of the bidirectional screw rod in a threaded manner;

one end of each connecting plate is hinged on one nut, and the other end is hinged on the push plate;

and the servo motor is connected with the bidirectional screw rod and used for driving the bidirectional screw rod to rotate, and the connecting plate pushes the push plate to move in the process that the bidirectional screw rod rotates to enable the two nuts to move back to back.

Further in order to prevent when X-shaped expansion bracket shrink, in the X-shaped expansion bracket was gone into to the canvas card, loading platform was with the scissors support device still include with the corresponding clamp piece of canvas pole, clamp piece is located between X-shaped expansion bracket and the canvas, the lower tip links to each other with corresponding canvas pole, and the upper end orientation canvas side slope, and support tightly the canvas.

Further, the compressing piece is a compression spring, and the compression spring is of an inverted U shape with an opening facing downwards.

Further, in order to widen the width of the whole scissor support device on the premise of not increasing the width of the X-shaped telescopic frames, two X-shaped telescopic frames are arranged in the left-right direction.

After the technical scheme is adopted, the telescopic driving mechanism adopts a structure with the matched screw rod, the nut block and the motor, the screw rod is driven to rotate by the motor, the nut block moves along the screw rod, the X-shaped telescopic frame is driven to extend or retract, the occupied space of the whole telescopic driving mechanism is small, the canvas rod is used for installing canvas on one hand, and the canvas rod plays a constraint role on two sides of the X-shaped telescopic frame on the other hand, so that the structure of the X-shaped telescopic frame is relatively stable and can be lifted smoothly.

Drawings

FIG. 1 is a schematic structural view of a scissors supporting device for a loading platform of the present utility model;

fig. 2 is a schematic structural diagram of the pushing mechanism of the present utility model.

Detailed Description

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

As shown in fig. 1 and 2, a scissors stay device for a loading platform includes:

the canvas frame comprises a plurality of canvas rods 1 which are arranged at intervals in the up-down direction, wherein the canvas rods 1 are used for fixing canvas;

each hinge shaft on one side of the X-shaped telescopic frame 2 is rotatably arranged on one canvas rod 1, and each hinge shaft on the other side is transversely and slidably arranged on the corresponding canvas rod 1;

the telescopic driving mechanism 3 comprises a screw rod 31, a nut block 32 and a motor 33, wherein the screw rod 31 is rotatably supported at the top end of the canvas frame and axially and transversely extends, the nut block 32 is in threaded connection with the screw rod 31 and is hinged to the top end of the other side of the X-shaped telescopic frame 2, and the motor 33 is connected with the screw rod 31 to drive the screw rod 31 to rotate.

Specifically, the telescopic driving mechanism of the embodiment adopts a structure of a screw rod 31, a nut block 32 and a motor 33, the screw rod 31 is driven to rotate by the motor 33, the nut block 32 moves along the screw rod 31, and then the X-shaped telescopic frame 2 is driven to extend or retract, the occupied space of the whole telescopic driving mechanism 3 is small, the canvas rod 1 is used for installing canvas on one hand, and the two sides of the X-shaped telescopic frame 2 are restrained on the other hand, so that the structure of the X-shaped telescopic frame 2 is relatively stable and can be lifted smoothly.

As shown in fig. 1, the canvas frame further comprises a bottom frame 4, the bottom frame 4 being attached to the lowermost canvas rod 1.

As shown in fig. 1, the X-shaped expansion bracket 2 is configured to be retractable to be fully inserted into the bottom frame 4. So set up, when X-shaped expansion bracket 2 is retracted, both conveniently accomodate, strengthened the aesthetic property again.

As shown in fig. 1 and 2, a telescopic pushing mechanism 5 is installed in the bottom frame 4, and the pushing mechanism 5 is used for pushing goods to move back to the canvas frame when the pushing mechanism extends. The pushing mechanism 5 pushes the goods to move back to the canvas frame, so that the goods can be prevented from leaning on the canvas frame and the X-shaped telescopic frame 2, and further the burden of the canvas frame and the X-shaped telescopic frame 2 is reduced.

As shown in fig. 2, the pushing mechanism 5 includes:

a push plate 51;

a bidirectional screw rod 55 rotatably supported by the bottom frame 4;

two nuts 52, each nut 52 being screwed to one end of the bidirectional screw 55;

two connection plates 53, one end of each connection plate 53 is hinged on one nut 52, and the other end is hinged on the push plate 51;

the servo motor 54 is connected to the bidirectional screw rod 55, and is used for driving the bidirectional screw rod 55 to rotate, and the connection plate 53 pushes the push plate 51 to move in the process that the bidirectional screw rod 55 rotates to enable the two nuts 52 to move back to back. The pushing mechanism 5 with the structure has a stable overall structure and small occupied space.

In this embodiment, the side, far away from the connecting plate 53, of the nut 52, which is close to the servo motor 54, is further connected to the servo motor 54 through a linkage mechanism, so as to enhance strength, the linkage mechanism includes a first linkage member, a second linkage member and a third linkage member, which are sequentially hinged, the free end of the first linkage member is hinged to the servo motor, and the free end of the third linkage member is hinged to the nut 52, which is close to the servo motor 54. The third linkage and the connection plate 53 near the servo motor 54 are symmetrical about the bi-directional screw 55.

As shown in fig. 1, a scissor jack device for a loading platform further includes a pressing member 6 corresponding to the canvas rod 1, the pressing member 6 is located between the X-shaped expansion bracket 2 and the canvas, the lower end portion is connected with the corresponding canvas rod 1, and the upper end portion is inclined toward the canvas side and abuts against the canvas. So set up, when X-shaped expansion bracket 2 shrink, compress tightly piece 6 can prevent effectively that the canvas from piling up towards X-shaped expansion bracket 2 side, and then prevent that X-shaped expansion bracket 2 card from dying.

As shown in fig. 1, the compressing element 6 is a compression spring, and the compression spring is in an inverted U shape with a downward opening. The whole compression spring with the structure is lighter.

As shown in fig. 1, the X-shaped expansion bracket 2 has two members arranged side by side in the left-right direction. By the arrangement, the width of the whole scissor support device can be widened on the premise of not increasing the width of the X-shaped telescopic frame 2. In this embodiment, the two X-shaped expansion brackets 2 are symmetrically arranged in the left-right direction, the expansion driving mechanisms 3 of the two X-shaped expansion brackets 2 share one motor 33, and the screw rods 31 of the two expansion driving mechanisms 3 are opposite in rotation direction and are linked through a linkage device, so that synchronous expansion of the two X-shaped expansion brackets 2 is ensured. The linkage device comprises a linkage rod, and two end parts of the linkage rod are respectively connected with a screw rod 31 through a universal coupling.

In this embodiment, two pushing mechanisms 5 are also provided, each pushing mechanism 5 corresponds to one X-shaped expansion bracket 2, the two pushing mechanisms 5 also share one servo motor 54, and the two bidirectional screw rods 55 of the two pushing mechanisms 5 are also linked through a linkage mechanism.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (8)

1. A scissor support device for a loading platform is characterized in that,

comprising the following steps:

the canvas frame comprises a plurality of canvas rods (1) which are arranged at intervals in the up-down direction, wherein the canvas rods (1) are used for fixing canvas;

each hinge shaft on one side of the X-shaped telescopic frame (2) is rotatably arranged on one canvas rod (1), and each hinge shaft on the other side of the X-shaped telescopic frame is transversely and slidably arranged on the corresponding canvas rod (1);

the telescopic driving mechanism (3) comprises a screw rod (31), a nut block (32) and a motor (33), wherein the screw rod (31) is rotatably supported at the top end of the canvas frame and axially extends transversely, the nut block (32) is in threaded connection with the screw rod (31) and hinged to the top end of the other side of the X-shaped telescopic frame (2), and the motor (33) is connected with the screw rod (31) to drive the screw rod (31) to rotate.

2. The scissors assembly for loading platform according to claim 1, wherein,

the canvas frame also comprises a bottom frame (4), and the bottom frame (4) is connected to the lowest canvas rod (1).

3. The scissors assembly for loading platform according to claim 2, wherein,

the X-shaped telescopic frame (2) is configured to be retractable to be fully inserted into the bottom frame (4).

4. The scissors assembly for loading platform according to claim 2, wherein,

the telescopic pushing mechanism (5) is arranged in the bottom frame (4), and the pushing mechanism (5) is used for pushing goods to move back to the canvas frame when the pushing mechanism stretches out.

5. The scissors assembly for loading platform according to claim 4, wherein,

the pushing mechanism (5) comprises:

a push plate (51);

a bidirectional screw rod (55) rotatably supported on the bottom frame (4);

two nuts (52), each nut (52) being screwed to one end of the bi-directional screw (55);

two connection plates (53), one end of each connection plate (53) is hinged on one nut (52), and the other end is hinged on the push plate (51);

and the servo motor (54) is connected with the bidirectional screw rod (55) and is used for driving the bidirectional screw rod (55) to rotate, and the connecting plate (53) pushes the push plate (51) to move in the process that the bidirectional screw rod (55) rotates to enable the two nuts (52) to move back to back.

6. The scissors assembly for loading platform according to claim 1, wherein,

the canvas pressing device is characterized by further comprising a pressing piece (6) corresponding to the canvas rod (1), wherein the pressing piece (6) is positioned between the X-shaped telescopic frame (2) and the canvas, the lower end part of the pressing piece is connected with the corresponding canvas rod (1), and the upper end part of the pressing piece is inclined towards the canvas side and abuts against the canvas.

7. The scissors assembly for loading platform according to claim 6, wherein,

the compressing piece (6) is a compression spring, and the compression spring is of an inverted U shape with an opening facing downwards.

8. The scissors assembly for loading platform according to claim 1, wherein,

two X-shaped telescopic frames (2) are arranged in the left-right direction.

Images