Rear-loading goods carrying rack device for heavy-loading type electric vehicle

Abstract

The utility model discloses a heavy-duty electric vehicle rear load carrying rack device, which relates to the technical field of electric vehicles, and comprises a carrying rack and an extension rack, one side of the carrying rack is provided with a storage groove, the extension rack is arranged in the storage groove in a sliding manner, the side part of the extension rack is provided with a rotating groove, and a fixed rod is fixedly arranged in the rotating groove; the two ends of the rod wall of the fixing rod are rotationally sleeved with supporting plates, the two supporting plates are located in the rotating groove, a rotating limiting mechanism is arranged between the supporting plates and the fixing rod, and a driving extending mechanism used for driving the extending frame to move is arranged between the storage groove and the side wall of the extending frame. According to the goods carrying shelf, the containing grooves, the extending frames, the rotating grooves, the fixing rods and the supporting plates, when the goods carrying shelf is used, the extending frames and the supporting plates can be pulled out from the interior of the goods carrying shelf and unfolded, the overall goods carrying range of the goods carrying shelf is enlarged, and the loading use effect of the goods carrying shelf is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to a rear load-bearing cargo rack device for a heavy-duty electric vehicle. Background Art

[0002] A heavy-duty electric vehicle is an electric vehicle specially used for heavy-duty transportation. It usually has a large load capacity and a long driving range, and is equipped with a cargo rack on the rear side for transporting items.

[0003] After searching, the patent number CN203358760U discloses a load-bearing cargo rack device for heavy-duty electric vehicles. The device is pulled up and down by hand, and the cargo-bearing device is laid flat and stood up to achieve a predetermined and regular movement. The load-bearing cargo rack device for heavy-duty electric vehicles adopts a frame cam mechanism, which is composed of a frame cam and a driven rod and a driven rod. The driven rod and the driven rod are pushed to swing back and forth in a straight line depending on the different distances from each point on the end face of the frame cam contour to the center of the frame cam. A simple mechanism is used to make the driven rod achieve a predetermined and regular movement, which is reasonable and effective, and the limit flipping function can be performed freely and quickly, so that safety can be guaranteed even on bumpy roads.

[0004] However, the overall cargo carrying range of the above-mentioned cargo rack is fixed. When the cargo to be supported needs to occupy a large space, the cargo rack is limited in range and cannot provide stable support for the cargo, which causes the cargo to easily tip over or fall during transportation, reducing the use effect of the cargo rack. Utility Model Content

[0005] In view of the problems existing in the above-mentioned existing rear load-carrying cargo rack device of heavy-duty electric vehicles, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a load-bearing rack device at the rear of a heavy-duty electric vehicle, which solves the problem that the overall cargo carrying range of the rack is fixed, and when the cargo to be supported needs to occupy a larger space, the range of the rack is limited and the cargo cannot be stably supported.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A load-carrying rack device for a heavy-duty electric vehicle comprises a load-carrying rack and an extension rack, wherein a storage slot is provided on one side of the load-carrying rack, the extension rack is slidably arranged in the storage slot, and a rotation slot is provided on the side, a fixing rod is fixedly arranged in the rotation slot, support plates are rotatably sleeved on both ends of the rod wall of the fixing rod, two support plates are both located in the rotation slot, and a rotation limiting mechanism is provided between the support plates and the fixing rod;

[0009] A driving extension mechanism for driving the extension frame to move is provided between the storage slot and the side wall of the extension frame.

[0010] Preferably, the driving extension mechanism includes a fixing plate, which is fixedly connected to the outer wall of the extension frame, a cavity is opened inside the backpack shelf, a screw rod is rotatably passed through the side of the cavity, the rod wall of the screw rod is threadedly passed through the interior of the fixing plate, a driving groove is jointly opened between the cavity and the side wall of the backpack shelf, a rotating block is fixedly sleeved on the rod wall of the screw rod, and the side of the rotating block passes through the driving groove.

[0011] Preferably, the rotation limiting mechanism includes a slide plate, and grooves are provided on opposite sides of the outer wall of the extension frame. The slide plate is arranged in the groove and slidably sleeved on the outer side of the fixed rod. Insertion rods are fixedly provided at both ends of the bottom of the slide plate, and a plurality of slots symmetrically arranged in a surrounding manner are provided on the surface of the support plate. The insertion rod passes through the rotation groove and is inserted into the slots. A first spring is sleeved on the rod wall of the fixed rod, and both ends of the first spring are fixedly connected to the fixed rod and the slide plate respectively.

[0012] Preferably, a sleeve is fixedly provided on the outer wall of the backpack rack, a sleeve rod is slidably inserted into the interior of the sleeve, a plurality of positioning grooves symmetrically arranged in a circumferential manner are opened on the surface of the rotating block, the ends of the sleeve rod are inserted into the positioning grooves, a second spring is inserted into the interior of the sleeve, and the two ends of the second spring are respectively fixedly connected to the inner wall of the sleeve and the sleeve rod.

[0013] Furthermore, a sliding hole is provided on the outer wall of the sleeve, a pull rod is slidably inserted into the sliding hole, and one end of the pull rod is fixedly connected to the sleeve rod.

[0014] Preferably, the outer wall of the rotating block is provided with anti-slip stripes.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] The utility model is provided with a load carrier, a storage slot, an extension frame, a rotating slot, a fixing rod and a supporting plate. When the load carrier is in use, the extension frame and the supporting plate can be drawn out from the interior of the load carrier and unfolded, thereby increasing the overall cargo carrying range of the load carrier and improving the load-bearing effect of the load carrier.

[0017] The utility model can fix the positions of the extension frame and the support plate after the support plate and the extension frame are unfolded, thereby improving the use stability of the pannier rack, by means of the driving extension mechanism, the fixing rod and the rotation limiting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a side sectional view of the utility model;

[0021] Figure 3 For the utility model Figure 1 A magnified schematic diagram of part A;

[0022] Figure 4 For the utility model Figure 2 An enlarged schematic diagram of part B.

[0023] Description of reference numerals:

[0024] 1. Cargo rack; 2. Extension rack; 3. Fixed rod; 4. Support plate; 5. Fixed plate; 6. Screw rod; 7. Rotating block; 8. Slide plate; 9. Insert rod; 10. First spring; 11. Sleeve; 12. Sleeve rod; 13. Second spring; 14. Pull rod. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model embodiment discloses a load-bearing rack device at the rear of a load-bearing electric vehicle.

[0027] The utility model provides Figure 1-3 The shown device is a load-bearing rear load-bearing rack for heavy-duty electric vehicles, comprising a load-bearing rack 1 and an extension rack 2. A storage groove is provided on one side of the load-bearing rack 1, the extension rack 2 is slidably arranged in the storage groove, and a rotating groove is provided on the side, a fixing rod 3 is fixed in the rotating groove, and support plates 4 are rotatably sleeved on both ends of the rod wall of the fixing rod 3.

[0028] When the electric vehicle needs to carry goods before use, the extension frame 2 can be pulled out from the storage slot before that to initially increase the load range of the backpack shelf 1. Then, the two support plates 4 can be rotated out from the extension frame 2 with the support of the fixing rod 3. At this time, with the dual cooperation of the extension frame 2 and the support plate 4, the support range of the backpack shelf 1 can be increased, thereby increasing the load capacity while ensuring the stability of the goods on the surface of the backpack shelf 1.

[0029] In order to fix the position of the support plate 4 after the support plate 4 is rotated out, Figure 2 and Figure 4 As shown, the two support plates 4 are both located in the rotating groove, and a rotation limiting mechanism is provided between the two support plates 4 and the fixed rod 3, the rotation limiting mechanism includes a slide plate 8, and a groove is provided on the opposite side of the outer wall of the extension frame 2. The slide plate 8 is arranged in the groove and is slidably sleeved on the outer side of the fixed rod 3. Insertion rods 9 are fixedly provided at both ends of the bottom of the slide plate 8. A plurality of slots symmetrically arranged in a surrounding manner are provided on the surface of the support plate 4. The insertion rod 9 passes through the rotating groove and is inserted into the slot. A first spring 10 is provided on the rod wall of the fixed rod 3, and the two ends of the first spring 10 are respectively fixedly connected to the fixed rod 3 and the slide plate 8.

[0030] Before the support plate 4 is rotated out, the operator first inserts his finger into the groove, and pulls the slide plate 8 after contacting the slide plate 8 near the bottom of the inner wall of the groove, so that the slide plate 8 moves along the fixing rod 3 and stretches the first spring 10. At this time, the slide plate 8 drives the insertion rod 9 to be pulled out from the inside of the slot, and then the support plate 4 can be pushed to make the support plate 4 rotate around the fixing rod 3 and rotate out of the rotating groove for use. When the rotation position of the support plate 4 is determined, the slide plate 8 is released, and under the elastic recovery of the first spring 10, the insertion rod 9 is reinserted into the slot, and the fixation of the support plate 3 is completed.

[0031] In order to be able to stably pull the extension frame 2 out from the interior of the pannier rack 1, Figure 1 and Figure 3 As shown, a driving extension mechanism for driving the extension frame 2 to move is provided between the storage slot and the side wall of the extension frame 2, and the driving extension mechanism includes a fixing plate 5, which is fixedly connected to the outer wall of the extension frame 2. A cavity is provided inside the load-carrying shelf 1, and a screw rod 6 is rotatably penetrated through the side of the cavity. The rod wall of the screw rod 6 is threadedly penetrated through the inside of the fixing plate 5, and a driving slot is provided between the cavity and the side wall of the load-carrying shelf 1. A rotating block 7 is fixedly sleeved on the rod wall of the screw rod 6. The outer wall of the rotating block 7 is provided with anti-slip stripes, and the side of the rotating block 7 passes through the driving slot;

[0032] A sleeve 11 is fixedly provided on the outer wall of the backpack 1, and a sleeve rod 12 is slidably penetrated inside the sleeve 11. A plurality of positioning grooves symmetrically arranged in a circle are provided on the surface of the rotating block 7, and the ends of the sleeve rod 12 are inserted into the positioning grooves. A second spring 13 is penetrated inside the sleeve 11, and the two ends of the second spring 13 are respectively fixedly connected to the inner wall of the sleeve 11 and the sleeve rod 12. A sliding hole is provided on the outer wall of the sleeve 11, and a pull rod 14 is slidably penetrated in the sliding hole, and one end of the pull rod 14 is fixedly connected to the sleeve rod 12.

[0033] Before pulling out the extension frame 2, first pull the pull rod 14 so that the pull rod 14 drives the sleeve rod 12 to move and squeeze the second spring 13. At this time, the sleeve 12 moves away from the positioning groove and enters the sleeve 11. Then push the rotating block 7 so that the rotating block 7 drives the screw rod 6 to rotate, and the fixed plate 5 and the extension frame 2 slide laterally under the limit of the inner wall of the storage groove and gradually move out of the storage groove. When the extension frame 2 is completely pulled out, release the pull rod 14, and the sleeve rod 12 is restored by the elastic force of the second spring 13. The sleeve rod 12 pops out from the sleeve 11 and is inserted into the positioning groove on the outside of the rotating block 7 again to fix the position of the rotating block 7, and try to avoid the screw rod 6 and the extension frame 2 from being accidentally driven and moving, so as to ensure stability during the loading process.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A load-carrying rear cargo rack device for a heavy-duty electric vehicle, comprising a cargo rack (1) and an extension rack (2), characterized in that: A storage groove is provided on one side of the pannier rack (1), the extension rack (2) is slidably arranged in the storage groove, and a rotation groove is provided on the side, a fixing rod (3) is fixedly arranged in the rotation groove, and support plates (4) are rotatably sleeved on both ends of the rod wall of the fixing rod (3), the two support plates (4) are both located in the rotation groove, and a rotation limiting mechanism is provided between the two support plates (4) and the fixing rod (3); A driving extension mechanism for driving the extension frame (2) to move is provided between the storage slot and the side wall of the extension frame (2).

2. The load-carrying electric vehicle rear load-carrying rack device according to claim 1, characterized in that: The driving extension mechanism comprises a fixing plate (5), the fixing plate (5) being fixedly connected to the outer wall of the extension frame (2), the interior of the backpack shelf (1) being provided with a cavity, a screw rod (6) being rotatably penetrated through the side of the cavity, the rod wall of the screw rod (6) being threadedly penetrated through the interior of the fixing plate (5), a driving groove being jointly provided between the cavity and the side wall of the backpack shelf (1), a rotating block (7) being fixedly sleeved on the rod wall of the screw rod (6), the side of the rotating block (7) being penetrated through the driving groove.

3. The load-carrying electric vehicle rear load-carrying cargo rack device according to claim 1, characterized in that: The rotation limiting mechanism comprises a slide plate (8), and grooves are provided on opposite sides of the outer wall of the extension frame (2). The slide plate (8) is arranged in the groove and slidably sleeved on the outer side of the fixed rod (3). Insertion rods (9) are fixedly provided at both ends of the bottom of the slide plate (8). The surface of the support plate (4) is provided with a plurality of slots arranged in a circumferential manner. The insertion rod (9) passes through the rotation groove and is inserted into the slots. A first spring (10) is sleeved on the rod wall of the fixed rod (3), and the two ends of the first spring (10) are respectively fixedly connected to the fixed rod (3) and the slide plate (8).

4. The load-carrying electric vehicle rear load-carrying rack device according to claim 2, characterized in that: The outer wall of the pannier rack (1) is fixedly provided with a sleeve (11), a sleeve rod (12) is slidably penetrated inside the sleeve (11), a surface of the rotating block (7) is provided with a plurality of positioning grooves arranged in a circumferentially symmetrical manner, the ends of the sleeve rod (12) are inserted into the positioning grooves, a second spring (13) is penetrated inside the sleeve (11), and the two ends of the second spring (13) are respectively fixedly connected to the inner wall of the sleeve (11) and the sleeve rod (12).

5. The load-carrying electric vehicle rear load-carrying rack device according to claim 4, characterized in that: The outer wall of the sleeve (11) is provided with a sliding hole, a pull rod (14) is slidably inserted into the sliding hole, and one end of the pull rod (14) is fixedly connected to the sleeve rod (12).

6. The load-carrying electric vehicle rear load-carrying rack device according to claim 2, characterized in that: The outer wall of the rotating block (7) is provided with anti-slip stripes.

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