Foldable flat car

Abstract

The utility model discloses a foldable flat car, and belongs to the technical field of flat cars. Comprising a square base, corner protection devices are fixed to the four corners of the base respectively, the bottoms of folding rod mechanisms are movably connected with the corner protection devices, and the adjacent folding rod mechanisms are detachably connected. The foldable frame has the advantages that the foldable rod mechanism is arranged, the frame can be folded, the foldable frame can be used as a flat car and a tray, the application range is widened, and the occupied space is reduced through folding storage.

Description

Technical Field

[0001] The utility model relates to a foldable flatbed vehicle, belonging to the technical field of flatbed vehicles. Background Art

[0002] The existing flatbed trucks are single fixed structures, with a frame installed on the chassis of the flatbed truck to improve transportation stability. When the flatbed truck is stored, the frame structure will occupy a large amount of space; the existing flatbed trucks have a single function and cannot be used as a pallet. Utility Model Content

[0003] In order to solve the defects of the prior art, the purpose of the utility model is to provide a foldable flatbed vehicle, the frame structure of which can be folded to reduce the storage space, and the vehicle can be used as a tray after being folded.

[0004] The technical solution of the utility model is: a foldable flatbed cart, comprising a square base, corner protection devices are respectively fixed at the four corners of the base, the bottom of a folding rod mechanism is movably connected to the corner protection device, and adjacent folding rod mechanisms are detachably connected.

[0005] Universal wheels are arranged at the bottom of the four corners of the base.

[0006] The corner protection device includes an L-shaped corner protection plate composed of a guard plate a and a guard plate b, wherein baffle a is vertically connected to guard plate b, and baffle b is vertically connected to guard plate a. A strip hole a is opened in the middle of the sides of guard plate a and baffle a, and limiting grooves are opened at the tops of guard plate a and baffle a. A U-shaped support is fixed at the bottom between guard plate a and baffle a.

[0007] The folding rod mechanism includes a column and a beam, the column and the beam are movably connected by a connecting plate, a snap plate is provided on the column, a hook is provided at the free end of the beam, and the beam and the adjacent column are detachably connected by plugging and fitting the hook and the snap plate. A bolt assembly a is provided at the bottom of the column, the bolt assembly a can move along the strip hole a, a limit pin is provided above the bolt assembly a, and the limit pin is detachably connected to the limit groove.

[0008] The connecting plate is relatively fixed on the top of the column, a strip hole b is opened on the connecting plate, a bolt assembly b is fixed on the end of the crossbeam, and the bolt assembly b passes through the strip hole b and can move along the strip hole b.

[0009] The L-shaped corner guard plates are welded and fixed at the four corners of the base.

[0010] The beneficial effects of the utility model are as follows: a folding rod mechanism is provided to realize the foldability of the frame, so that the frame can be used as a flatbed vehicle or a tray, thereby increasing the application range and reducing the occupied space when folded for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1Expand the view for the flatbed;

[0012] Figure 2 This is a folded view of a flatbed truck;

[0013] Figure 3 for Figure 2 A partial enlarged view of

[0014] Figure 4 Collapse the view for the beam;

[0015] Figure 5 for Figure 1 A top view of

[0016] Figure 6 for Figure 5 A partial enlarged view of

[0017] Figure 7 It is a partial diagram of the folding rod mechanism in the unfolded state;

[0018] Figure 8 is a diagram showing the position relationship between the U-shaped support and the hook during the folding process;

[0019] Fig. 9 Folding storage view for flatbed truck.

[0020] The reference numerals in the figure are as follows: 1. base, 2. corner guard, 2.1. guard plate a, 2.2. strip hole a, 2.3. baffle a, 2.4. baffle b, 2.5. guard plate b, 2.6. limit groove, 2.7. U-shaped support, 3. universal wheel, 4.1. column, 4.2. beam, 4.3. connecting plate, 4.4. snap plate, 4.5. hook, 4.6. bolt assembly a, 4.7. limit pin, 4.8. strip hole b, 4.9. bolt assembly b. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-9 The utility model is further described as follows:

[0022] A foldable flatbed cart includes a square base 1, corner guards 2 are fixed at the four corners of the base 1, universal wheels 3 are provided at the bottom of the four corners of the base 1 to facilitate movement in all directions, the bottom of the folding rod mechanism is movably connected to the corner guard 2, and adjacent folding rod mechanisms are detachably connected. The corner guard 2 includes an L-shaped corner guard composed of a guard plate a2.1 and a guard plate b2.5, the L-shaped corner guard is welded and fixed at the four corners of the base 1, a baffle a2.3 is vertically connected to the guard plate b2.5, and a baffle b2.4 is vertically connected to the guard plate a2.1, a strip hole a2.2 is opened in the middle of the side of the guard plate a2.1 and the baffle a2.3, a limiting groove 2.6 is opened at the top of the guard plate a2.1 and the baffle a2.3, and a U-shaped support member 2.7 is fixed at the bottom between the guard plate a2.1 and the baffle a2.3. The folding rod mechanism includes a column 4.1 and a beam 4.2, the column 4.1 and the beam 4.2 are movably connected by a connecting plate 4.3, a snap plate 4.4 is provided on the column 4.1, a hook 4.5 is provided at the free end of the beam 4.2, and a detachable connection is achieved between the beam 4.2 and the adjacent column 4.1 through the plug-in cooperation of the hook 4.5 and the snap plate 4.4, a bolt assembly a4.6 is provided at the bottom of the column 4.1, the bolt assembly a4.6 can move along the strip hole a2.2, a limit pin 4.7 is provided above the bolt assembly a4.6, and the limit pin 4.7 is detachably connected to the limit groove 2.6.

[0023] The connecting plate 4.3 is relatively fixed to the top of the column 4.1, and a strip hole b4.8 is opened on the connecting plate 4.3. A bolt assembly b4.9 is fixed to the end of the crossbeam 4.2. The bolt assembly b4.9 passes through the strip hole b4.8 and can move along the strip hole b4.8.

[0024] When the folding rod mechanism is unfolded, the column 4.1 is in a vertical state, the beam 4.2 is perpendicular to the column 4.1, the limit pin 4.7 at the bottom of the column 4.1 is located in the limit groove 2.6, the limit pin 4.7 cooperates with the limit groove 2.6 to limit, the bolt assembly a4.6 passing through the strip hole a2.2 cooperates with the limit pin 4.7 to position the column 4.1, and the hook 4.5 at the end of the beam 4.2 is hung on the U-shaped snap plate 4.4 on the top of the adjacent column 4.1 side opposite to it, that is, the two ends of the unfolded beam 4.2 are respectively connected to the two adjacent columns 4.1, and the four beams 4.2 are adjacent to each other end to end through the four columns 4.1.

[0025] When the folding rod mechanism is folded, the hook 4.5 is separated from the buckle plate 4.4, and the free end of the cross beam 4.2 rotates to the bottom of the column 4.1 (such as Figure 4As shown), lift the column 4.1, and the bolt assembly a4.6 moves up along the strip hole a2.2. At the same time, the limit pin 4.7 separates from the limit slot 2.6, so that the column 4.1 can rotate. The column 4.1 is rotated and placed on the base 1. The column 4.1 drives the beam 4.2 to rotate synchronously. The hook 4.5 at the end of the beam 4.2 contacts the U-shaped support 2.7. Under the action of the U-shaped support 2.7, the hook 4.5 pushes the beam 4.2 to move along the strip hole b4.8 relative to the column 4.1. After folding into place, the lower surface of the beam 4.2 fits on the upper surface of the base 1, and the column 4.1 fits on the upper surface of the beam 4.2. The folded state is as shown in FIG. Figure 2 As shown, it can be used as a tray. When not in use, it can be stacked up and down to save space. Fig. 9 shown.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A foldable flatbed vehicle, characterized in that: It comprises a square base (1), wherein corner protection devices (2) are respectively fixed at the four corners of the base (1), the bottom of the folding rod mechanism is movably connected to the corner protection device (2), and adjacent folding rod mechanisms are detachably connected; The corner protection device (2) comprises an L-shaped corner protection plate composed of a guard plate a (2.1) and a guard plate b (2.5); a baffle a (2.3) is vertically connected to the guard plate b (2.5); a baffle b (2.4) is vertically connected to the guard plate a (2.1); a strip hole a (2.2) is opened in the middle of the side of the guard plate a (2.1) and the baffle a (2.3); a limiting groove (2.6) is opened at the top of the guard plate a (2.1) and the baffle a (2.3); and a U-shaped support member (2.7) is fixed at the bottom between the guard plate a (2.1) and the baffle a (2.3); The folding rod mechanism comprises a column (4.1) and a crossbeam (4.2); the column (4.1) and the crossbeam (4.2) are movably connected via a connecting plate (4.3); a snap plate (4.4) is provided on the column (4.1); a hook (4.5) is provided at the free end of the crossbeam (4.2); the crossbeam (4.2) and the adjacent column (4.1) are detachably connected via the plug-in cooperation of the hook (4.5) and the snap plate (4.4); a bolt assembly a (4.6) is provided at the bottom of the column (4.1); the bolt assembly a (4.6) can move along the strip hole a (2.2); a limit pin (4.7) is provided above the bolt assembly a (4.6); the limit pin (4.7) is detachably connected to the limit groove (2.6).

2. The foldable flatbed vehicle according to claim 1, characterized in that: Universal wheels (3) are provided at the bottom of the four corners of the base (1).

3. The foldable flatbed vehicle according to claim 1, characterized in that: The connecting plate (4.3) is relatively fixed to the top of the column (4.1), a strip hole b (4.8) is opened on the connecting plate (4.3), a bolt assembly b (4.9) is fixed to the end of the crossbeam (4.2), and the bolt assembly b (4.9) passes through the strip hole b (4.8) and can move along the strip hole b (4.8).

4. The foldable flatbed vehicle according to claim 1, characterized in that: The L-shaped corner guard plates are welded and fixed at the four corners of the base (1).

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