Sliding chain type automatic cargo loading and unloading platform

Abstract

The utility model belongs to the technical field of cargo loading and unloading, and particularly relates to a sliding chain type automatic cargo loading and unloading platform which comprises a bottom plate, a mounting groove is formed in the bottom of the bottom plate, a supporting plate is slidably connected to the inner wall of the mounting groove, a rotating column is rotatably connected to the inner wall of the supporting plate, and a supporting ring is fixedly connected to the outer wall of the rotating column. A bottom frame is arranged below the bottom plate, the inner wall of the bottom frame is fixedly connected with a supporting rod used for supporting the supporting ring, and the inner wall of the bottom frame is slidably connected with a supporting block corresponding to the rotating column. The height of the loading and unloading platform can be adjusted through a mounting groove, a supporting plate and an upper driving telescopic rod, adjustment is conducted in time after a remarkable height difference is generated between the loading and unloading platform and a carriage, the situation that goods are influenced by the height difference during loading and unloading is avoided, a positioning block can wrap the bottom of the outer wall of a rotating column, and therefore it can be ensured that the device can stably unload the goods after the position of a bottom plate is adjusted. The stability of the position is conveniently ensured, and the limiting influence on the position adjustment of the bottom plate is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of cargo handling, and particularly relates to a sliding chain type automatic cargo handling platform. Background Art

[0002] When a freight truck is loaded with heavy goods, the weight of the vehicle body increases, and the pressure borne by the tires also increases accordingly. Under the action of the pressure, the tires will undergo a certain degree of deformation, usually manifested as being flattened. This deformation will cause the overall height of the freight truck to decrease. On the contrary, when unloading, the cargo box will also be lowered. After the loading and unloading platform is docked with the cargo box, the height change affects the smooth loading and unloading of the goods. At the same time, after the loading and unloading platform corresponds to the truck carriage and the goods are loaded and unloaded, since the loading and unloading platform is designed to be able to slide on the ground for easy docking operation in order to correspond to the carriage, it is prone to displacement when subjected to collision or the pressure of cargo loading and unloading, affecting the cargo loading and unloading. Content of the Utility Model

[0003] The utility model provides a sliding chain type automatic cargo handling platform, which has the characteristics of solving the height change of the cargo box and the influence of the sliding of the loading and unloading platform on the loading and unloading of the goods.

[0004] The utility model provides the following technical solutions: It includes a bottom plate. An installation groove is opened at the bottom of the bottom plate. A support plate is slidably connected to the inner wall of the installation groove. A rotating column is rotatably connected to the inner wall of the support plate. A support ring is fixedly connected to the outer wall of the rotating column. A chassis is provided below the bottom plate. A support rod for supporting the support ring is fixedly connected to the inner wall of the chassis. A support block corresponding to the rotating column is slidably connected to the inner wall of the chassis. A clamping groove is opened at the top of the support block. A positioning block is snap-fitted to the inner wall of the clamping groove. An installation frame is installed at the bottom of the chassis. A sliding frame is slidably connected to the inner wall of the installation frame. An electric push rod is fixedly connected between the inner wall of the sliding frame and the bottom end of the support block. A relief groove is opened at the bottom of the support block.

[0005] Wherein, a positioning groove is opened on the outer wall of the support ring. A guiding rod is fixedly connected to the top end of the support rod. The guiding rod is in fit with the positioning groove.

[0006] Wherein, a side plate is fixedly connected to the outer wall of the support plate. A vertical rod is fixedly connected to the top end of the side plate. A sliding hole matching the vertical rod is opened on the bottom plate.

[0007] Wherein, a loading and unloading platform is installed above the bottom plate. A plurality of upper driving telescopic rods are installed on the loading and unloading platform. The driving end of the upper driving telescopic rod penetrates the bottom plate. The driving end of the upper driving telescopic rod is fixedly connected to the top end of the support plate.

[0008] Among them, a connecting groove for engaging with the bottom of the positioning block is formed in the inner wall of the card slot, a bottom groove matching the top of the sliding frame is formed in the bottom of the support block, a plug rod is fixedly connected to the inner wall of the bottom groove, the plug rod is slidably connected to the top of the sliding frame, and the two support blocks are connected by a cross plate.

[0009] Among them, upper sliding blocks are fixedly connected to both sides of the sliding frame, upper sliding grooves matching the upper sliding blocks are formed in the inner wall of the bottom frame, a regulating rod is rotatably connected to the inner wall of one of the upper sliding grooves, and the regulating rod is threadedly connected to the upper sliding block.

[0010] Among them, lower sliding blocks are fixedly connected to both sides of the sliding frame, lower sliding grooves matching the lower sliding blocks are formed in the inner wall of the mounting frame, a limiting rod is fixedly connected to the inner wall of the lower sliding groove, and the limiting rod is slidably connected to the lower sliding block.

[0011] The beneficial effects of the present utility model are as follows: the height of the loading and unloading platform can be adjusted through the installation groove, the support plate and the upper driving telescopic rod. After a significant height difference is generated with the carriage, adjustment can be carried out in a timely manner to avoid the influence of the height difference on the goods during loading and unloading. By means of the rotating column, the bottom frame and the support rod, it is convenient to adjust the position of the bottom plate to the corresponding position of the truck. At the same time, the sliding frame can slide inside the mounting frame, and the support block can slide vertically inside the sliding frame. Under the action of the electric push rod, the positioning block can wrap the bottom of the outer wall of the rotating column, so that the device can ensure the stability of the position of the bottom plate after the position of the bottom plate is adjusted, and will not limit the position adjustment of the bottom plate.

[0012] Parts not involved in the device are the same as the prior art or can be implemented by using the prior art. Description of the Drawings

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is a split structural schematic diagram of the bottom plate and the bottom frame in the present utility model;

[0015] Figure 3 is a three-dimensional sectional schematic diagram of the bottom frame in the present utility model;

[0016] Figure 4 is a motion schematic diagram of the support block in the present utility model;

[0017] Figure 5 is the present utility model Figure 2 an enlarged schematic diagram of A therein.

[0018] In the figure: 1. bottom plate; 11. mounting groove; 12. support plate; 13. rotating column; 131. support ring; 132. positioning groove; 14. upper drive telescopic rod; 15. side plate; 16. vertical rod; 161. sliding hole; 17. loading and unloading platform; 2. bottom frame; 21. support rod; 22. guide rod; 23. support block; 231. bottom groove; 232. plug rod; 24. card slot; 25. positioning block; 26. connecting groove; 27. cross plate; 28. clearance groove; 3. mounting frame; 31. slide frame; 32. upper slide block; 321. upper slide groove; 322. adjusting rod; 33. lower slide block; 331. lower slide groove; 332. limit rod; 34. electric push rod. DETAILED DESCRIPTION

[0019] See also Figures 1 - 5 The utility model provides the following technical solutions: it includes a bottom plate 1, a mounting groove 11 is provided at the bottom of the bottom plate 1, a support plate 12 is slidably connected to the inner wall of the mounting groove 11, a rotating column 13 is rotatably connected to the inner wall of the support plate 12, a supporting ring 131 is fixedly connected to the outer wall of the rotating column 13, a bottom frame 2 is provided under the bottom plate 1, a supporting rod 21 for supporting the supporting ring 131 is fixedly connected to the inner wall of the bottom frame 2, a supporting block 23 corresponding to the rotating column 13 is slidably connected to the inner wall of the bottom frame 2, a card slot 24 is provided at the top of the support block 23, a positioning block 25 is card-engaged with the inner wall of the card slot 24, a mounting frame 3 is installed at the bottom of the bottom frame 2, a slide 31 is slidably connected to the inner wall of the mounting frame 3, an electric push rod 34 is fixedly connected between the inner wall of the slide 31 and the bottom end of the support block 23, and a clearance groove 28 is provided at the bottom of the support block 23.

[0020] In this embodiment: The bottom plate 1 is the carrier of the loading device. The installation groove 11 opened at the bottom of the bottom plate 1 provides an installation surface for the support plate 12. The support plate 12 is used to support the bottom plate 1. At the same time, the support plate 12 slides up and down on the inner wall of the installation groove 11, so that the height of the bottom plate 1 on the support plate 12 can be adjusted when adjusted by an external driving member. Thus, when the device is horizontally corresponding to the truck carriage and loading goods, as the goods in the carriage continuously increase, the carriage is subjected to the pressure of the goods, and under the action of the vehicle's tire shock absorption, its height moves down between 5 cm and 20 cm. As a result, a large height difference is generated between the slide chain loading and unloading assembly erected above the bottom plate 1, which is not conducive to horizontally pushing the goods into the cargo box. On the contrary, when unloading, the truck moves up, and a height difference will still be generated. At this time, the support plate 12 can slide on the inner wall of the installation groove 11, so that the position of the bottom plate 1 on the support plate 12 can be adjusted in time after the significant height difference occurs, avoiding the influence of the height difference on the goods during loading and unloading, resulting in unstable loading and unloading operations, and ensuring the stable loading and unloading of the goods. When adjusting the position of the bottom plate 1 to ensure that the loading platform 17 can correspond to the truck carriage, at this time, the chassis 2 can be buried in the ground so that its top surface is flush with the ground. The support rod 21 fixedly connected to the inner wall of the chassis 2 can support the rotating column 13 rotatably connected to the inner wall of the support plate 12, so that the support ring 131 can rotate on the support rod 21 under external drive, and the rotating column 13 can be displaced on the support rod 21, thereby adjusting the positions of the support plate 12 and the bottom plate 1. After the position of the loading platform 17 corresponds to the carriage, in order to avoid, when loading and unloading goods, for the convenience of the rotating column 13 to be displaced on the upper side of the support rod 21, the friction between them is relatively low, resulting in its displacement easily under the pressure of inertia and the like during loading and unloading. At this time, after positioning at the position of the loading platform 17, the support block 23 slidably connected to the inner wall of the chassis 2 can slide on the inner wall of the chassis 2, and at the same time, the sliding frame 31 slidably connected to the inner wall of the mounting frame 3 can slide synchronously, so that when the position of the rotating column 13 needs to be positioned, the sliding frame 31 can drive the support block 23 to displace to its lower position, and then the support block 23 is driven to move up by the electric push rod 34. The relief groove 28 opened at the top of the support block 23 can enable it to move up to avoid being limited by the support rod 21, so that the positioning block 25 engaged in the inner wall of the card slot 24 opened at the top of the support block 23 can correspond to both ends of the rotating column 13, enabling the positioning block 25 to support and engage with the rotating column 13, thereby connecting and limiting the rotating column 13 to the support block 23, so that the rotating column 13 will not be displaced on the support rod 21. When displacement is required, the support block 23 can slide down, so that the positioning block 25 is misaligned with the outer wall of the rotating column 13, so that the device can ensure that after adjusting the position of the bottom plate 1, it is convenient to ensure the stability of its position and will not limit the position adjustment of the bottom plate 1.

[0021] The outer wall of the support ring 131 is provided with a positioning groove 132. The top end of the support rod 21 is fixedly connected with a guiding rod 22, and the guiding rod 22 is in fit with the positioning groove 132. The positioning groove 132 formed on the outer wall of the support ring 131 can limit the support ring 131 on the guiding rod 22 fixedly connected to the top end of the support rod 21. When the support ring 131 is displaced on the support rod 21, it can ensure that the rotating column 13 drives the bottom plate 1 to perform a horizontal displacement, avoiding misalignment between the support ring 131 and the support rod 21 and affecting the position adjustment of the loading and unloading platform 17.

[0022] The outer wall of the support plate 12 is fixedly connected with a side plate 15, the top end of the side plate 15 is fixedly connected with a vertical rod 16, and a sliding hole 161 matching the vertical rod 16 is formed on the bottom plate 1. The side plate 15 fixedly connected to the outer wall of the support plate 12 is used for installing the vertical rod 16, so that the vertical rod 16 slides in the sliding hole 161 formed on the bottom plate 1. When the bottom plate 1 is adjusted in height on the support plate 12, it can be limited by the vertical rod 16 and the sliding hole 161 at this time, ensuring the vertical displacement of the bottom plate 1.

[0023] A loading and unloading platform 17 is installed above the bottom plate 1. A plurality of upper driving telescopic rods 14 are installed on the loading and unloading platform 17. The driving end of the upper driving telescopic rod 14 penetrates the bottom plate 1, and the driving end of the upper driving telescopic rod 14 is fixedly connected with the top end of the support plate 12. The loading and unloading platform 17 installed above the bottom plate 1 is used for pushing goods, so that the goods are erected by the bottom plate 1 directly above the bottom plate 1. The upper driving telescopic rod 14 is used to connect the support plate 12 and the loading and unloading platform 17, so that the upper driving telescopic rod 14 can drive and telescopically adjust the height of the bottom plate 1, and the height of the loading and unloading platform 17 can be appropriately adjusted.

[0024] The inner wall of the card slot 24 is provided with a connecting groove 26 for clamping the bottom of the positioning block 25. The bottom of the support block 23 is provided with a bottom groove 231 matching the top of the sliding frame 31. The inner wall of the bottom groove 231 is fixedly connected with a plug rod 232, and the plug rod 232 is slidably connected with the top of the sliding frame 31. The two support blocks 23 are connected by a cross plate 27. The connecting groove 26 formed on the inner wall of the card slot 24 is used for clamping and installing the positioning block 25, so that the positioning block 25 is clamped and positioned on the inner wall of the card slot 24, and the positioning block 25 can replace the corresponding groove size according to the size of the rotating column 13 according to actual needs, ensuring the support and limit of the rotating column 13. The bottom groove 231 is used for the support block 23 to be supported and clamped on the top of the sliding frame 31. At the same time, when the support block 23 needs to move up to adjust the position, it is limited by the upper sliding block 32 and the top of the sliding frame 31. After ensuring that the sliding frame 31 and the rotating column 13 are vertically corresponding, when the support block 23 moves up, it can be accurately clamped and limited with the outer wall of the rotating column 13. The cross plate 27 is used for positioning the positions of the support blocks 23 on the left and right sides. After ensuring their position adjustment, the two support blocks 23 correspond to the two rotating columns 13 respectively.

[0025] On both sides of the carriage 31, upper sliding blocks 32 are fixedly connected. An upper sliding groove 321 matching the upper sliding blocks 32 is formed in the inner wall of the chassis 2. One of the inner walls of the upper sliding grooves 321 is rotatably connected with an adjusting rod 322, and the adjusting rod 322 is threadedly connected with the upper sliding block 32; the upper sliding blocks 32 fixedly connected to both sides of the carriage 31 can slide on the inner wall of the upper sliding groove 321. By rotating the adjusting rod 322 rotatably connected to the inner wall of the upper sliding groove 321, the adjusting rod 322 can be driven by a motor to rotate, so that the upper sliding block 32 can be adjusted by the rotation of the adjusting rod 322 to adjust the position of the upper sliding block 32 on the adjusting rod 322, thereby adjusting the position of the carriage 31.

[0026] On both sides of the carriage 31, lower sliding blocks 33 are fixedly connected. A lower sliding groove 331 matching the lower sliding blocks 33 is formed in the inner wall of the mounting frame 3. A limiting rod 332 is fixedly connected to the inner wall of the lower sliding groove 331, and the limiting rod 332 is slidably connected with the lower sliding block 33; the lower sliding blocks 33 fixedly connected to both sides of the carriage 31 are used for being limited in the lower sliding groove 331 to ensure that when the carriage 31 slides on the inner walls of the chassis 2 and the mounting frame 3, it slides horizontally, ensuring that the carriage 31 can correspond to the outer wall of the rotating column 13 up and down.

[0027] The working principle and usage process of the present utility model: The support height of the bottom plate 1 on the support plate 12 can be adjusted, so that the position of the bottom plate 1 on the support plate 12 can be adjusted in time after a significant height difference is generated between the loading and unloading platform 17 and the carriage, avoiding the influence of the height difference on the goods during loading and unloading. Since the chassis 2 is buried in the ground below the bottom plate 1, during use, the support plate 12 slidably connected to the inner wall of the installation groove 11 corresponds to the chassis 2 through the rotating column 13, so that the support ring 131 supports on the support rod 21 fixed to the inner wall of the chassis 2. The rotating column 13 rotates on the support rod 21 to adjust the position of the bottom plate 1. After the position of the loading and unloading platform 17 corresponds to the carriage, in order to prevent the rotating column 13 from displacing above the support rod 21 under the pressure of inertia and the like during loading and unloading of goods, the carriage 31 slides on the inner wall of the mounting frame 3, driving the support block 23 to slide to a position corresponding to the rotating column 13. The support block 23 is driven by the electric push rod 34 to move upward, and the positioning block 25 can correspond to both ends of the rotating column 13, so that the positioning block 25 can support and engage with the rotating column 13, thereby connecting and limiting the rotating column 13 with the support block 23, preventing the rotating column 13 from displacing on the support rod 21. When displacement is required, the support block 23 can be lowered, causing the positioning block 25 to be misaligned with the outer wall of the rotating column 13, so that the device can ensure the stability of the position of the bottom plate 1 after adjusting the position of the bottom plate 1 and will not limit the position adjustment of the bottom plate 1.

Claims

1. The sliding chain type automatic loading and unloading cargo platform, including a bottom plate (1), is characterized in that: The bottom of the bottom plate (1) is provided with an installation groove (11). The inner wall of the installation groove (11) is slidably connected with a support plate (12). The inner wall of the support plate (12) is rotatably connected with a rotating column (13). A support ring (131) is fixedly connected to the outer wall of the rotating column (13). A chassis (2) is provided below the bottom plate (1). A support rod (21) for supporting the support ring (131) is fixedly connected to the inner wall of the chassis (2). A support block (23) corresponding to the rotating column (13) is slidably connected to the inner wall of the chassis (2). A clamping groove (24) is formed at the top of the support block (23). A positioning block (25) is snap-fitted to the inner wall of the clamping groove (24). An installation frame (3) is installed at the bottom of the chassis (2). A sliding frame (31) is slidably connected to the inner wall of the installation frame (3). An electric push rod (34) is fixedly connected between the inner wall of the sliding frame (31) and the bottom end of the support block (23). A relief groove (28) is formed at the bottom of the support block (23).

2. The slide-chain type automatic loading and unloading cargo platform according to claim 1, wherein: A positioning groove (132) is formed on the outer wall of the support ring (131). A guiding rod (22) is fixedly connected to the top end of the support rod (21). The guiding rod (22) is in fit with the positioning groove (132).

3. The slide-chain type automatic loading and unloading cargo platform according to claim 1, wherein: A side plate (15) is fixedly connected to the outer wall of the support plate (12). A vertical rod (16) is fixedly connected to the top end of the side plate (15). A sliding hole (161) matching the vertical rod (16) is formed in the bottom plate (1).

4. The sliding chain type automatic loading and unloading cargo platform according to claim 1, characterized in that: A loading and unloading platform (17) is installed above the bottom plate (1). A number of upper driving telescopic rods (14) are installed on the loading and unloading platform (17). The driving end of the upper driving telescopic rod (14) penetrates the bottom plate (1). The driving end of the upper driving telescopic rod (14) is fixedly connected to the top end of the support plate (12).

5. The sliding chain type automatic loading and unloading cargo platform according to claim 1, wherein: A connecting groove (26) for snap-fitting the bottom of the positioning block (25) is formed in the inner wall of the clamping groove (24). A bottom groove (231) matching the top of the sliding frame (31) is formed at the bottom of the support block (23). A plug rod (232) is fixedly connected to the inner wall of the bottom groove (231). The plug rod (232) is slidably connected to the top of the sliding frame (31). The two support blocks (23) are connected by a cross plate (27).

6. The sliding chain type automatic loading and unloading cargo platform according to claim 1, wherein: Upper sliding blocks (32) are fixedly connected to both sides of the sliding frame (31). Upper sliding grooves (321) matching the upper sliding blocks (32) are formed in the inner wall of the chassis (2). An adjusting rod (322) is rotatably connected to the inner wall of one of the upper sliding grooves (321). The adjusting rod (322) is threadedly connected to the upper sliding block (32).

7. The sliding chain type automatic loading and unloading cargo platform according to claim 1, characterized in that: Lower sliding blocks (33) are fixedly connected to both sides of the sliding frame (31). Lower sliding grooves (331) matching the lower sliding blocks (33) are formed in the inner wall of the installation frame (3). A limiting rod (332) is fixedly connected to the inner wall of the lower sliding groove (331). The limiting rod (332) is slidably connected to the lower sliding block (33).

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