Turnover box for road transportation

Abstract

The utility model belongs to the field of turnover boxes, and particularly relates to a turnover box for highway transportation, which comprises a turnover box main body, an adjusting mechanism is arranged on the turnover box main body, the adjusting mechanism comprises two sets of extension plates, the extension plates are slidably connected to the interiors of the storage grooves, the storage grooves are formed in the left side and the right side of the turnover box main body, a cavity is formed in the turnover box main body, and two sets of racks are slidably connected to the interior of the cavity; the rack is meshed with the gear, the bottom end of the rack is fixedly connected with a connecting block, the connecting block is fixedly connected with the extension plate, the cavity is provided with a through groove, the top end of the gear is fixedly connected with a ratchet wheel, a pawl is clamped on the ratchet wheel, the bottom end of the pawl is sleeved with a torsional spring, and the top end of the pawl is fixedly connected with a fixing rod. And through the structural design of the adjusting mechanism, the function of conveniently adjusting the length of the turnover box body is achieved.

Description

Technical Field

[0001] The utility model relates to the field of turnover boxes, and particularly to a turnover box for road transportation. Background Art

[0002] Turnover boxes are used to store items so as to ensure that the items will not move during transportation. Turnover boxes can store some large quantities of items by stacking.

[0003] According to the patent document: A foldable turnover box suitable for road transportation proposed in CN202021383168.2, which relates to the technical field of turnover boxes, includes a bottom plate, a front plate and a rear plate that can be folded in half. The front plate and the rear plate are hinged to both sides of the bottom plate through hinge buckles. Both ends of the bottom plate are fixedly connected with a left plate and a right plate. Lifting handles for carrying in the opposite direction are arranged at the tops of the left plate and the right plate. The left top plate and the right top plate are respectively connected to the outsides of the left plate and the right plate in a parallel sliding manner, and the left top plate and the right top plate can slide along the vertical direction and rotate inward to cover. A stacking chute is fixedly connected to the bottom surface of the bottom plate, and a stacking boss that is embedded in the stacking chute and can slide is fixedly connected to the top surface of the left top plate and / or the right top plate. It solves the problems of poor stacking performance, inconvenient handling and large storage space occupation of the turnover box in the prior art.

[0004] However, for a foldable turnover box suitable for road transportation in the above technology, although it can be folded for easy storage, the length of the turnover box after being opened is fixed and cannot be adjusted according to the actual situation, resulting in low space utilization rate. Therefore, a turnover box for road transportation is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art, for a foldable turnover box suitable for road transportation in the above technology, although it can be folded for easy storage, the length of the turnover box after being opened is fixed and cannot be adjusted according to the actual situation, resulting in low space utilization rate. The utility model proposes a turnover box for road transportation.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A turnover box for road transportation described in the present utility model includes a turnover box main body; an adjustment mechanism is provided on the turnover box main body, and the adjustment mechanism includes two groups of extension plates. The extension plates are slidably connected inside the storage grooves, and the storage grooves are opened on the left and right sides of the turnover box main body. A cavity is opened inside the turnover box main body, and two groups of racks are slidably connected inside the cavity. The racks are engaged with gears. The bottom end of the rack is fixedly connected with a connecting block, and the connecting block is fixedly connected with the extension plate. A through groove is opened on the cavity, the top end of the gear is fixedly connected with a ratchet wheel, a pawl is engaged with the ratchet wheel, and a torsion spring is sleeved on the bottom end of the pawl.

[0007] Preferably, a fixing rod is fixedly connected to the top end of the pawl. The fixing rod is slidably connected in an arc-shaped groove, and the arc-shaped groove is opened on a protective shell. The bottom end of the protective shell is fixedly connected to the turnover box main body, and a notch is opened on the protective shell.

[0008] Preferably, two groups of slide rails are fixedly connected to the front and rear sides of the inner wall of the storage groove. A fixing block is slidably connected inside the slide rails, and the fixing block is fixedly connected to the inner wall of the extension plate. The extension plate is designed to be hollow.

[0009] Preferably, a fixing shell is fixedly connected to the inner wall of the extension plate near the top end. A spring is fixedly connected to the inner wall of the fixing shell. The top end of the spring is fixedly connected with a positioning block, and the positioning block is inserted into a positioning groove, and the positioning groove is opened on the top end of the turnover box main body.

[0010] Preferably, a rectangular groove is opened on the extension plate, and a gasket is fixedly connected to the inner wall of the rectangular groove.

[0011] Preferably, a clamping block is fixedly connected to the side of the rack away from the gear. The clamping block is slidably connected inside a clamping groove, and the clamping groove is opened on the inner wall of the cavity.

[0012] Preferably, four groups of sliding grooves are opened at the bottom end of the inner wall of the storage groove. A sliding block is slidably connected to the sliding groove, and the sliding block is fixedly connected to the bottom end of the extension plate.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. Through the structural design of the adjustment mechanism, the present utility model realizes the function of facilitating the adjustment of the length of the turnover box main body, and solves the problem in the above-mentioned technology that a foldable turnover box suitable for road transportation, although it can be folded to facilitate storage, the length of the turnover box after it is opened is fixed and cannot be adjusted according to the actual situation, resulting in low space utilization rate.

[0015] 2. The utility model is designed with a positioning block and a positioning groove. The extension plate can be fixed on the turnover box body by engaging the positioning block with the inner wall of the positioning groove, avoiding the movement of the extension plate, so as to ensure that the extension plate will not be retracted into the storage groove again due to vibration after being pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0018] Figure 2 is a schematic structure diagram of the spring and the slide rail of the present utility model;

[0019] Figure 3 is a schematic structure diagram of the extension plate of the present utility model;

[0020] Figure 4 is a schematic structure diagram of the interior of the cavity of the present utility model;

[0021] Figure 5 is a schematic connection structure diagram of the ratchet wheel of the present utility model.

[0022] In the figure: 1, turnover box body; 20, storage groove; 21, extension plate; 22, connecting block; 23, rack; 24, through groove; 25, cavity; 26, gear; 27, pawl; 28, torsion spring; 29, fixed rod; 30, ratchet wheel; 31, notch; 32, arc groove; 33, protective shell; 34, card slot; 35, slide groove; 36, card block; 37, slider; 38, rectangular groove; 39, gasket; 40, fixed block; 41, fixed shell; 42, positioning block; 43, positioning groove; 44, spring; 45, slide rail. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all 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 belong to the scope of protection of the present utility model.

[0024] Please refer to Figure 1 - Figure 5As shown in the figure, a reusable container for road transportation includes a reusable container main body 1; an adjusting mechanism is provided on the reusable container main body 1. The adjusting mechanism includes two sets of extension plates 21. The extension plates 21 are slidably connected inside the storage grooves 20. The storage grooves 20 are opened on the left and right sides of the reusable container main body 1. A cavity 25 is opened inside the reusable container main body 1. Two sets of racks 23 are slidably connected inside the cavity 25. The racks 23 are engaged with gears 26. A connecting block 22 is welded and fixed to the bottom end of the rack 23. The connecting block 22 and the extension plate 21 are fixed by welding. A through groove 24 is opened on the cavity 25. A ratchet 30 is fixed to the top end of the gear 26. The gear 26 and the ratchet 30 are sleeved on the same rotating shaft. A pawl 27 is engaged with the ratchet 30. The pawl 27 is rotatably connected to the reusable container main body 1. A torsion spring 28 is sleeved on the bottom end of the pawl 27;

[0025] During operation, for a foldable reusable container suitable for road transportation in the above technology, although it can be folded to facilitate storage, the length of the reusable container after it is opened is fixed and cannot be adjusted according to the actual situation, resulting in a low space utilization rate. Through the structural design of the adjusting mechanism, the function of facilitating the adjustment of the length of the reusable container main body 1 is realized. When the length of the reusable container main body 1 needs to be adjusted, first press down the positioning block 42 to release its engagement with the positioning groove 43, and then the extension plates 21 can be pulled to both sides to pull out the extension plates 21 inside the storage grooves 20. During the process of pulling out the extension plates 21, the racks 23 fixed on the extension plates 21 will drive the gears 26 to rotate. The gears 26 and the ratchets 30 are sleeved and fixed on the same rotating shaft. Therefore, the ratchets 30 will also rotate. Due to the characteristics of the ratchets 30, after the extension plates 21 are pulled out, it is impossible to push the extension plates 21 into the storage grooves 20. Therefore, when the extension plates 21 need to be re-stored in the storage grooves 20, it is necessary to first push the pawls 27 so that they no longer contact the ratchets 30, and then the extension plates 21 can be re-stored in the storage grooves 20. By pulling out the extension plates 21, the length of the reusable container main body 1 can be changed, so that the reusable container main body 1 can freely adjust its length according to the actual situation, so as to change the minimum volume required for placing the reusable container main body 1, so as to flexibly utilize the storage space to place the reusable container main body 1. A torsion spring 28 is sleeved on the bottom end of the pawl 27 to ensure that the pawl 27 can maintain contact with the ratchet 30. The gears 26 are rotatably connected inside the reusable container main body 1.

[0026] Furthermore, a fixing rod 29 is welded and fixed to the top end of the pawl 27. The fixing rod 29 is slidably connected in an arc-shaped groove 32. The arc-shaped groove 32 is opened on a protective shell 33. The bottom end of the protective shell 33 is welded and fixed to the reusable container main body 1. The protective shell 33 is designed in a rectangular shape. A notch 31 is opened on the protective shell 33;

[0027] During operation, a fixing rod 29 is fixed on the pawl 27 so that the pawl 27 can be pushed to rotate by pushing the fixing rod 29. The arc groove 32 is used to limit the movement range of the fixing rod 29 to prevent the fixing rod 29 from rotating too much. The protective shell 33 is used to protect the ratchet 30 to prevent the ratchet 30 from being affected by the outside world during operation. A notch 31 is provided on the protective shell 33 to ensure that the pawl 27 does not abut against the inner wall of the protective shell 33 when rotating.

[0028] Furthermore, two sets of slide rails 45 are welded and fixed on both sides of the inner wall of the storage slot 20, and the slide rails 45 are U-shaped. The interior of the slide rails 45 is slidably connected with a fixing block 40, and the fixing block 40 is welded and fixed on the inner wall of the extension plate 21, and the extension plate 21 is hollow.

[0029] During operation, the fixed block 40 fixed inside the extension plate 21 slides in the slide rail 45, and the slide rail 45 is used to limit the maximum distance that the extension plate 21 can be pulled out. At the same time, the slide rail 45 can also increase the connection strength between the extension plate 21 and the turnover box body 1, so as to facilitate the storage of items in the turnover box body 1.

[0030] Furthermore, a fixed shell 41 is welded and fixed on the inner wall of the extension plate 21 near the top, a spring 44 is welded and fixed on the inner wall of the fixed shell 41, a positioning block 42 is welded and fixed on the top of the spring 44, and the positioning block 42 is inserted in the positioning groove 43, and the positioning groove 43 is provided at the top of the turnover box body 1;

[0031] During operation, through the structural design of the positioning block 42 and the positioning groove 43, the positioning block 42 and the inner wall of the positioning groove 43 can be engaged to fix the extension plate 21 on the turnover box body 1 to prevent the extension plate 21 from moving, thereby ensuring that the extension plate 21 will not be re-received into the storage groove 20 due to vibration after being pulled out, wherein the positioning groove 43 is provided with multiple groups, and the positioning block 42 is designed in a trapezoidal shape to facilitate the engagement and fixation with the inner wall of the positioning groove 43.

[0032] Furthermore, a rectangular groove 38 is formed on the extension plate 21, and a gasket 39 is glued and fixed on the inner wall of the rectangular groove 38;

[0033] During operation, the rectangular groove 38 is provided to facilitate the transportation of the turnover box body 1 , and a gasket 39 is fixed on the inner wall of the rectangular groove 38 for buffering.

[0034] Furthermore, a clamping block 36 is welded and fixed on one side of the rack 23 away from the gear 26, and the clamping block 36 is slidably connected to the inside of the clamping slot 34, which is provided on the inner wall of the cavity 25;

[0035] During operation, both the card slot 34 and the card block 36 are trapezoidally designed to improve the sliding of the card block 36 in the card slot 34, so as to fix the position height of the rack 23 and ensure that the rack 23 can stably move in the cavity 25, thereby ensuring the normal meshing of the rack 23 and the gear 26.

[0036] Furthermore, four groups of sliding grooves 35 are opened at the bottom end of the inner wall of the storage groove 20. A slider 37 is slidably connected to the sliding groove 35, and the slider 37 is welded and fixed to the bottom end of the extension plate 21.

[0037] During operation, the bottom end of the extension plate 21 slides on the four groups of sliding grooves 35 through the four groups of sliders 37 to improve the smoothness of the extension plate 21 when moving inside the storage groove 20, so as to facilitate the smooth extraction of the extension plate 21 from the inside of the storage groove 20 and the storage of the extension plate 21 into the storage groove 20.

[0038] Working principle: Among the prior arts, there is a foldable turnover box suitable for road transportation. Although it can be folded for easy storage, the length of the turnover box after it is opened is fixed and cannot be adjusted according to the actual situation, resulting in a low space utilization rate. In this case, a turnover box for road transportation realizes the function of facilitating the adjustment of the length of the turnover box body 1 through the structural design of the adjustment mechanism. When the length of the turnover box body 1 needs to be adjusted, first press down the positioning block 42 to release its engagement with the positioning groove 43, and then the extension plate 21 inside the storage groove 20 can be pulled out by pulling the extension plate 21 to both sides. During the process of pulling out the extension plate 21, the rack 23 fixed on the extension plate 21 will drive the gear 26 to rotate. The gear 26 and the ratchet wheel 30 are sleeved and fixed on the same rotating shaft, so the ratchet wheel 30 will also rotate. Due to the characteristics of the ratchet wheel 30, after the extension plate 21 is pulled out, it is impossible to push the extension plate 21 into the inside of the storage groove 20. Therefore, when the extension plate 21 needs to be stored into the storage groove 20 again, it is necessary to first push the pawl 27 so that it no longer contacts the ratchet wheel 30, and then the extension plate 21 can be stored into the storage groove 20 again. By pulling out the extension plate 21, the length of the turnover box body 1 is changed, so that the turnover box body 1 can freely adjust its length according to the actual situation, so as to change the minimum volume required for placing the turnover box body 1, so as to flexibly utilize the storage space to place the turnover box body 1. A torsion spring 28 is sleeved at the bottom end of the pawl 27 to ensure that the pawl 27 can maintain contact with the ratchet wheel 30. The gear 26 is rotatably connected inside the turnover box body 1.

[0039] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. What is described in the above-mentioned embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A turnover box for road transport, comprising a turnover box body (1); characterized in that: The turnover box body (1) is provided with an adjustment mechanism, which includes two groups of extension plates (21), the extension plates (21) are slidably connected to the inside of the storage groove (20), the storage groove (20) is opened on the left and right sides of the turnover box body (1), the turnover box body (1) is provided with a cavity (25), the cavity (25) is slidably connected with two groups of racks (23), the racks (23) and the gears (26) are meshed, the bottom end of the racks (23) is fixedly connected with a connecting block (22), the connecting block (22) and the extension plates (21) are fixedly connected, the cavity (25) is provided with a through groove (24), the top end of the gear (26) is fixedly connected with a ratchet (30), the ratchet (30) is engaged with a pawl (27), and the bottom end of the pawl (27) is sleeved with a torsion spring (28).

2. A road transport turnover box according to claim 1, characterized in that: The top end of the pawl (27) is fixedly connected to a fixing rod (29), and the fixing rod (29) is slidably connected in an arc groove (32). The arc groove (32) is provided on a protective shell (33). The bottom end of the protective shell (33) is fixedly connected to the turnover box body (1), and a notch (31) is provided on the protective shell (33).

3. A road transport turnover box according to claim 2, characterized in that: Two sets of slide rails (45) are fixedly connected on both the front and rear sides of the inner wall of the storage groove (20), and a fixed block (40) is slidably connected inside the slide rail (45). The fixed block (40) is fixedly connected to the inner wall of the extension plate (21), and the extension plate (21) is hollow in design.

4. A road transport turnover box according to claim 3, characterized in that: A fixed shell (41) is fixedly connected to the inner wall of the extension plate (21) at a position close to the top, a spring (44) is fixedly connected to the inner wall of the fixed shell (41), a positioning block (42) is fixedly connected to the top of the spring (44), and the positioning block (42) is inserted in a positioning groove (43). The positioning groove (43) is provided at the top of the turnover box body (1).

5. A road transport turnover box according to claim 4, characterized in that: The extension plate (21) is provided with a rectangular groove (38), and a gasket (39) is fixedly connected to the inner wall of the rectangular groove (38).

6. A turnover box for road transport according to claim 5, characterized in that: A clamping block (36) is fixedly connected to the side of the rack (23) away from the gear (26), and the clamping block (36) is slidably connected to the inside of a clamping groove (34), and the clamping groove (34) is formed on the inner wall of the cavity (25).

7. A turnover box for road transport according to claim 6, characterized in that: Four groups of slide grooves (35) are provided at the bottom end of the inner wall of the storage groove (20), and a slider (37) is slidably connected to the slide groove (35), and the slider (37) is fixedly connected to the bottom end of the extension plate (21).

Images