Folding widening device for low flat plate

Abstract

The utility model discloses a low flat plate folding widening device which comprises a high-low plate, first grooves are formed in the two sides of the low plate of the high-low plate respectively, a drawing box is arranged in the first grooves, and sliding blocks are arranged at the upper ends and the lower ends of the two sides of the rear end of the drawing box respectively. The sliding blocks are slidably arranged in sliding grooves formed in the upper ends and the lower ends of the two sides of the interior of the first groove, a stepped groove is formed in the drawing box, an electric telescopic rod is arranged in the center of the interior of the stepped groove, and driven telescopic rods are arranged on the two sides of the interior of the stepped groove correspondingly. The upper portion of the electric telescopic rod and the upper portion of the driven telescopic rod are connected with the lifting plate, baffles are arranged on the two sides of the portion, outside the first groove, of the low plate respectively, and the baffles are fixed to the low plate through fastening bolts. According to the utility model, the low flat plate can be widened conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, in particular to a low-bed folding widening device. Background Technique

[0002] A semi-trailer is a trailer with axles placed behind the center of gravity of the vehicle and equipped with a coupling device that can transfer horizontal and vertical forces to the tractor. Generally, a semi-trailer is a three-axle semi-trailer, and its types include eleven-meter barn semi-trailers, thirteen-meter barns, low-bed semi-trailers, etc. It is a heavy transportation vehicle connected to the semi-trailer head through a kingpin.

[0003] For a low-bed semi-trailer, the top of its frame is mainly in a horizontal state and is mainly used for transporting some large-sized goods. In the related art, when using a low-bed semi-trailer to transport goods, when the width of the frame cannot meet people's transportation needs, since the frame is mostly integrally designed, it is not convenient to widen.

[0004] Therefore, a low-bed folding widening device is proposed for the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a low-bed folding widening device, including a high-low bed. On both sides of the low-bed of the high-low bed, grooves I are respectively opened. Inside the groove I, a drawer box is arranged. At the upper and lower ends of the two sides of the rear end of the drawer box, sliding blocks are respectively arranged. The sliding blocks are slidably arranged in the sliding grooves opened at the upper and lower ends of the two sides inside the groove I. A stepped groove is opened inside the drawer box. At the central position inside the stepped groove, an electric telescopic rod is arranged. On both sides inside the stepped groove, driven telescopic rods are respectively arranged. Above the electric telescopic rod and the driven telescopic rod, a lifting plate is respectively connected. On both sides of the low-bed outside the groove I, baffles are respectively arranged. The baffles are fixed on the low-bed through fastening bolts.

[0006] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0007] In the utility model, by setting a hand-holding groove, a drawer box, sliding blocks, sliding grooves, fastening bolts, and baffles, when the hand reaches into the hand-holding groove and pulls out the drawer box, the sliding blocks on both sides of the drawer box slide in the sliding grooves, and the drawer box is pulled out. Then, the fastening bolts are loosened, the baffles are rotated, and the side at the bottom of the drawer box is clamped into the card slot, and the fastening bolts are tightened, which is convenient for auxiliary positioning of the drawer box.

[0008] In the utility model, by setting an electric telescopic rod, a driven telescopic rod, and a lifting plate, when the electric telescopic rod is started, the electric telescopic rod extends to drive the lifting plate to rise, and then the driven telescopic rod rises passively, improving the stability of the lifting plate rising. The lifting plate rises to be flush with the top surface of the low-bed, which is convenient for folding and widening the low-bed. Description of the Drawings

[0009] Figure 1 is a schematic diagram of the external structure of the present utility model;

[0010] Figure 2 is Figure 1 the enlarged view of part A in

[0011] Figure 3 is a schematic diagram of the internal structure of the present utility model;

[0012] Figure 4 is Figure 3 the enlarged view of part B in

[0013] Figure 5 is the top view of the drawer box of the present utility model.

[0014] The reference numerals and names in the figure are as follows:

[0015] 1, high and low plate; 101, first groove; 2, drawer box; 201, hand-holding groove; 202, stepped groove; 203, sliding groove; 3, baffle; 301, clamping groove; 4, fastening bolt; 5, lifting plate; 6, electric telescopic rod; 7, driven telescopic rod; 8, sliding block; 9, control button. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] As shown in the Figures 1-5 accompanying drawings, the low flat plate folding and widening device provided by the present utility model includes a high and low plate 1. On both sides of the low plate of the high and low plate 1, first grooves 101 are respectively opened. Inside the first grooves 101, a drawer box 2 is arranged. On the upper and lower ends of both sides of the rear end of the drawer box 2, sliding blocks 8 are respectively arranged. The sliding blocks 8 are slidably arranged in the sliding grooves 203 opened at the upper and lower ends of both sides inside the first grooves 101. Inside the drawer box 2, a stepped groove 202 is opened. At the central position inside the stepped groove 202, an electric telescopic rod 6 is arranged. On both sides inside the stepped groove 202, driven telescopic rods 7 are respectively arranged. The electric telescopic rod 6 and the driven telescopic rod 7 are respectively connected to a lifting plate 5 above. On both sides of the low plate outside the first grooves 101, baffles 3 are respectively arranged. The baffles 3 are fixed on the low plate by fastening bolts 4.

[0018] Specifically, a hand-holding groove 201 is opened at the central position on the outer side of the drawer box 2.

[0019] Specifically, a clamping groove 301 is formed above one side of the baffle 3 close to the drawer box 2.

[0020] Specifically, a control button 9 is arranged at the low plate on the left side outside the first groove 101, and the control button 9 is electrically connected to the electric telescopic rod 6.

[0021] Working principle: When in use, loosen the fastening bolt 4, rotate the baffle 3, then put the hand into the hand holding groove 201 and pull out the drawer box 2. The sliding blocks 8 on both sides of the drawer box 2 slide in the sliding grooves 203 to pull out the drawer box 2. Rotate the baffle 3 to the side at the bottom of the drawer box, and snap the side at the bottom of the drawer box into the clamping groove 301. Tighten the fastening bolt 4 to assist in positioning the drawer box. Then press the control button 9 to start the electric telescopic rod 6. The electric telescopic rod 6 extends to drive the lifting plate 5 to rise. Furthermore, the driven telescopic rod 7 rises drivenly, improving the stability of the lifting of the lifting plate 5. The lifting plate 5 rises to be flush with the top surface of the low plate, facilitating the folding and widening of the low flat plate.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. Low flat folding and widening device, including high and low plates (1), characterized in that: On both sides of the lower plate of the high-low plate (1), a first groove (101) is respectively opened. Inside the first groove (101), a drawer box (2) is arranged. At the upper and lower ends of both sides of the rear end of the drawer box (2), sliding blocks (8) are respectively arranged. The sliding blocks (8) are slidably arranged in sliding grooves (203) opened at the upper and lower ends of both sides inside the first groove (101). A stepped groove (202) is opened inside the drawer box (2). At the central position inside the stepped groove (202), an electric telescopic rod (6) is arranged. On both sides inside the stepped groove (202), driven telescopic rods (7) are respectively arranged. The electric telescopic rod (6) and the driven telescopic rod (7) are respectively connected to a lifting plate (5) above. On both sides of the lower plate outside the first groove (101), baffles (3) are respectively arranged. The baffles (3) are fixed on the lower plate through fastening bolts (4).

2. The low-bed folding and widening device according to claim 1, characterized in that: A hand-holding groove (201) is opened at the central position on the outer side of the drawer box (2).

3. The low-bed folding and widening device according to claim 1, characterized in that: A clamping groove (301) is opened above the side of the baffle (3) close to the drawer box (2).

4. The low-bed folding and widening device according to claim 1, wherein: A control button (9) is arranged at the lower plate on the left side outside the first groove (101). The control button (9) is electrically connected to the electric telescopic rod (6).

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