A truck loading and unloading device

Abstract

The utility model discloses a kind of truck loading and unloading devices, belong to truck loading and unloading tool technical field.The device includes hydraulic loading bridge and ground groove, hydraulic loading bridge includes mounting seat, hydraulic cylinder, hydraulic pump station and mesa, mesa is hinged on mounting seat, hydraulic cylinder is hinged between mounting seat and mesa;Ground groove is set along front and back, it can be supplied truck to drive in, its front groove face is inclined to the slope of ground;Hydraulic loading bridge is located on the rear groove face of ground groove;Mounting seat is located at the top of the intermediate position of rear groove face and its vertical setting, hydraulic pump station is located on rear groove face and is close to the left groove face or right groove face of ground groove Setting;Mesa is set along front and back, its rear end is hinged on the top of mounting seat and flush with ground, its front end is higher than the container of truck;At this time, hydraulic cylinder stretches and it is set from below to above obliquely forward;When hydraulic cylinder contracts, mesa rotates towards mounting seat to be folded up.

Description

Technical Field

[0001] This utility model belongs to the technical field of loading and unloading tools, and specifically relates to a loading and unloading device. Background Technology

[0002] Aluminum foil is a flexible metal film widely used in food, beverages, cigarettes, pharmaceuticals, photographic plates, household goods, and batteries.

[0003] The aluminum foil production process involves loading and unloading unprocessed aluminum sheets, processed aluminum foil, scrap aluminum, rolling lubricating oil, and waste rolling oil. Aluminum foil is transported in boxes (see description in application number CN202510608553.3), while scrap aluminum is transported after being compressed into blocks. Rolling lubricating oil and waste rolling oil are stored in corresponding drums and transported in drums; these are classified as hazardous chemicals.

[0004] Rolling lubricating oil and rolling waste oil are loaded and unloaded outdoors. Appropriate tools are needed to transfer the oil drums to the cargo box of the truck during loading and unloading.

[0005] In the prior art, various tools can be used to assist in loading and unloading vehicles, such as loading ramps or unloading platforms (as described in application numbers CN202420234389.5 and CN202410018099.1).

[0006] For the loading ramp structure, refer to the description in application number CN201921274632.1, which discloses a fixed electric loading ramp, including a support base fixedly installed in concrete. The top of the support base has an installation groove with one side open. A first hydraulic cylinder is hinged to the bottom inner wall of the installation groove. A platform is hinged to the output shaft of the first hydraulic cylinder. The platform is rotatably connected to the support base and is adapted to the installation groove. An installation plate is fixedly installed at the bottom of the platform. A second hydraulic cylinder is hinged to the installation plate. A connecting plate is hinged to the output shaft of the second hydraulic cylinder and is hinged to the platform. A support plate is fixedly installed on the inner wall of the bottom of the trough. Two threaded sleeves are rotatably installed on the top of the support plate. A screw is installed in the threaded sleeve. A support block is hinged to the top of the screw. The top of the support block is in contact with the bottom of the platform. A motor is fixedly installed on the top of the support plate. A first gear is fixedly sleeved on the output shaft of the motor. A rotating rod is provided above the support plate. A second gear is fixedly sleeved on the outside of the rotating rod. The second gear meshes with the first gear. A first bevel gear is fixedly sleeved on both ends of the rotating rod. A second bevel gear is fixedly sleeved on the outside of the threaded sleeve, and the second bevel gear meshes with the first bevel gear.

[0007] For example, patent application number CN201921374620.6 discloses a fixed loading ramp, including a platform and a bracket embedded in the side of the loading and unloading platform. The bracket is configured as an L-shaped structure with the opening of the L-shaped structure facing the side of the loading and unloading platform. One end of the platform is rotatably connected to the bracket, and the other end is flush with the side of the loading and unloading platform. A tongue plate is provided on the lower surface of the platform near the side of the loading and unloading platform. The tongue plate is slidably connected to the lower surface of the platform. A driving device is provided at one end of the tongue plate, and the tongue plate can move along the platform direction under the drive of the driving device.

[0008] In the existing technology, pushing the oil drum diagonally upwards along the platform of the hydraulic loading ramp to the truck bed is not only time-consuming and labor-intensive, but the oil drum is also prone to tipping over during the pushing process, causing safety accidents. Utility Model Content

[0009] To address the aforementioned problems, this utility model provides a loading and unloading device that allows the truck to be moved into a trench, where the oil drums can be essentially pushed horizontally onto the truck's cargo box. This not only saves time and labor but also reduces the risk of accidents. The technical solution is as follows:

[0010] This utility model provides a loading and unloading device, which includes a hydraulic loading ramp 2. The hydraulic loading ramp 2 includes a mounting base 21, a hydraulic cylinder 22, a hydraulic pump station, and a platform 24. The platform 24 is hinged to the mounting base 21, and the hydraulic cylinder 22 is hinged between the mounting base 21 and the platform 24. The device also includes a trench 3. The trench 3 is arranged in a front-rear direction and allows trucks to drive in. Its front trench surface 31 is a slope that slopes upward to the ground surface 1. The hydraulic loading ramp 2 is located on the rear trench surface of the trench 3. 32; the mounting base 21 is located at the top of the middle position of the rear groove surface 32 and is vertically arranged; the hydraulic pump station is located on the rear groove surface 32 and is located near the left groove surface 33 or the right groove surface 34 of the ground groove 3; the platform 24 is arranged in the front-back direction, its rear end is hinged to the top of the mounting base 21 and is flush with the ground 1, and its front end is higher than the cargo box of the truck; at this time, the hydraulic cylinder 22 extends and is arranged obliquely forward from bottom to top; when the hydraulic cylinder 22 retracts, the platform 24 rotates toward the mounting base 21 to retract.

[0011] In this embodiment of the present invention, the ground groove 3 is a rectangular groove, the length of which is greater than the length of the truck in the front-to-back direction, the width of which is greater than the width of the truck in the left-to-right direction, and the depth of which is greater than the height of the truck's cargo box.

[0012] Furthermore, in this embodiment of the present invention, a fence 4 is provided on the ground 1 and at the top of the left trough surface 33, the right trough surface 34 and the rear trough surface 32. The fences 4 on the three trough surfaces form a U-shape. An openable and closable door is provided in the middle of the fence 4 on the rear trough surface 32 and directly opposite the hydraulic loading ramp 2. A drainage ditch 6 is provided on the left and / or right sides of the bottom of the trough 3 along the front-rear direction. Two rows of anti-collision steel pillars 5 are arranged side by side on the ground 1 and directly in front of the trough 3. An anti-slip groove is provided on the slope and its lower end transitions to the bottom of the trough 3 in an arc shape. The two rows of anti-collision steel pillars 5 are located on the left and right sides of the truck, respectively, and are aligned with the left trough surface 33 and the right trough surface 34. Each of them includes multiple anti-collision steel pillars 5 arranged side by side.

[0013] In this embodiment of the invention, the mounting base 21 includes a flat plate 11, a front short upright plate 12, a rear long upright plate 13, two mounting brackets 15, two buffer blocks 16, and multiple reinforcing plates 14. The flat plate 11 is horizontally arranged along the front-to-back direction and is flush with the ground 1. A rectangular notch 17 is provided in the middle of its front part. The front short upright plate 12 and the rear long upright plate 13 are both vertically arranged along the left-to-right direction and are respectively located at the lower front and rear of the flat plate 11. The rear long upright plate 13 is fixed on the rear groove surface 32 and its vertical length is greater than that of the front short upright plate 12. The front short upright plate 12 is located at the rear side of the rectangular notch 17. The rear end of the flat plate 11 overlaps the ground 1. The multiple reinforcing plates 14 are arranged side by side on the left and right sides, and are all arranged along the front-to-back direction. It is located on the lower side of the flat plate 11, between the front short upright plate 12 and the rear long upright plate 13; the rear end of the platform 24 is hinged to the front side of the front short upright plate 12, which is flush with the flat plate 11, and is a rectangular structure arranged in the front-rear direction, with its rear part located in the rectangular notch 17; the hydraulic cylinder 22 is hinged to the lower part of the rear long upright plate 13; two mounting brackets 15 are respectively located at the left and right ends of the front side of the flat plate 11, located on the lower side of the flat plate 11, and respectively located on the left and right sides of the platform 24; two buffer blocks 16 are respectively located on the front side of the two mounting brackets 15, located directly behind the carriage; when the hydraulic cylinder 22 extends, the buffer block 16 is located behind the front end of the platform 24; when the hydraulic cylinder 22 retracts, the front side of the buffer block 16 is located in front of the platform 24.

[0014] In this embodiment of the present invention, the mounting bracket 15 includes a mounting plate, a rectangular plate, and two L-shaped plates arranged side by side. The mounting plate is arranged in the left-right direction and is vertically positioned. It is fixed to the lower front end of the flat plate 11 and is located at the left or right end of the flat plate 11. The rectangular plate is arranged in the front-back direction and is vertically positioned. It is fixed to the lower side of the flat plate 11, with its rear end fixed to the rear elongated plate 13 and its front end fixed to the middle of the rear side of the mounting plate. The buffer block 16 is a vertically positioned strip block and is fixed to the front side of the mounting plate by two L-shaped plates. Both L-shaped plates are fixed to the front side of the mounting plate, arranged back to back, and vertically positioned. They are located on the left and right sides of the buffer block 16, respectively, and are fixed to the buffer block 16 by two bolts arranged side by side.

[0015] Specifically, in this embodiment of the present invention, there are two hydraulic cylinders 22; the two hydraulic cylinders 22 are arranged side by side and driven synchronously, and are respectively located at the left and right ends of the platform 24; the lower end of the cylinder body of the hydraulic cylinder 22 is hinged to the lower part of the rear long vertical plate 13, and the upper end of its telescopic rod is hinged to the lower rear part of the platform 24; when the hydraulic cylinder 22 is retracted, the platform 24 is vertically arranged.

[0016] Furthermore, the mounting base 21 in this embodiment of the present invention also includes multiple limiting support rods 18, which are arranged side by side; the limiting support rods 18 are arranged in the front-rear direction, and their rear ends are fixed to the front side of the rear long upright plate 13, which is located directly behind the platform 24; when the hydraulic cylinder 22 retracts, the rear side of the platform 24 abuts against the front end of the limiting support rod 18.

[0017] In this embodiment of the invention, the countertop 24 includes an anti-slip plate 41 and its lower rear inclined plate 42, front upright plate 43, multiple I-beams 44, and multiple right-angle plates 45. The anti-slip plate 41 is a rectangular plate arranged along the front-rear direction, sloping upwards from back to front. Its rear end is hinged to the front short upright plate 12 and is located adjacent to the front of the rear side of the rectangular notch 17. It has anti-slip texture on its upper side, and its left and right sides are located adjacent to the inner sides of the corresponding sides of the rectangular notch 17. Its rear end is flush with the flat plate 11, and its front upper part is formed by... The rear inclined plate 42 is located at the rear end of the anti-slip plate 41 and is arranged diagonally downward from back to front. The front upright plate 43 is located at the front of the anti-slip plate 41 and is arranged vertically along the left and right directions. Multiple I-beams 44 are arranged side by side along the front and back directions and are located between the rear inclined plate 42 and the front upright plate 43. Multiple right-angle plates 45 are arranged side by side along the front and back directions and are located on the front side of the front upright plate 43. The upper end of the telescopic rod of the hydraulic cylinder 22 is hinged to the lower side of the anti-slip plate 41.

[0018] Furthermore, the device also includes a rain shelter 23 and a control cabinet for controlling the hydraulic pump station. The control cabinet and the rain shelter 23 are both located on the rear groove surface 32. The control cabinet and the hydraulic pump station are arranged side by side and are both located directly below the rain shelter 23. The control cabinet, the hydraulic pump station and the rain shelter 23 are all located behind the front side of the buffer block 16.

[0019] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This utility model embodiment provides a loading and unloading device that allows trucks to move into a trench, and oil drums can be basically pushed flat onto the truck's cargo box, which not only saves time and labor but also reduces safety accidents. In addition, this patent includes fencing and anti-collision steel posts to ensure personnel safety and guide trucks. Buffer blocks are also included to protect the hydraulic loading ramps, control cabinet, rain shelter, and on-site operators. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the loading and unloading device in an embodiment of the present utility model;

[0021] Figure 2 This is a top view of the loading and unloading equipment;

[0022] Figure 3 This is a structural schematic diagram of a hydraulic loading ramp;

[0023] Figure 4 This is a side view of a hydraulic loading ramp;

[0024] Figure 5 This is a top view of a hydraulic loading ramp;

[0025] Figure 6 This is a front view of the hydraulic loading ramp;

[0026] Figure 7 This is a schematic diagram of the hydraulic loading ramp when the hydraulic cylinder retracts;

[0027] Figure 8 This is a structural diagram of the mounting base;

[0028] Figure 9 This is a front view of the mounting bracket;

[0029] Figure 10 This is a bottom view of the mounting bracket;

[0030] Figure 11 yes Figure 9 Sectional view along axis AA;

[0031] Figure 12 This is a structural diagram of the countertop;

[0032] Figure 13 This is a side view of the countertop.

[0033] In the diagram: 1. Ground, 2. Hydraulic loading ramp, 3. Ground trench, 4. Fence, 5. Anti-collision steel posts, 6. Drainage ditch;

[0034] 11 Flat plate, 12 Front short upright plate, 13 Rear long upright plate, 14 Reinforcing plate, 15 Mounting bracket, 16 Buffer block, 17 Rectangular notch, 18 Limiting support rod;

[0035] 21 Mounting base, 22 Hydraulic cylinder, 23 Rainproof canopy, 24 Countertop;

[0036] 31 Front groove surface, 32 Rear groove surface, 33 Left groove surface, 34 Right groove surface;

[0037] 41 Anti-slip plate, 42 Rear sloping plate, 43 Front upright plate, 44 I-beam, 45 Right-angle plate. Detailed Implementation

[0038] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0039] Example 1

[0040] See Figure 1-13 Example 1 provides a loading and unloading device, which includes a hydraulic loading ramp 2 and a ground trough 3. The hydraulic loading ramp 2 is disposed on the rear surface 32 of the ground trough 3.

[0041] The trench 3 is arranged along the front-to-back direction, allowing trucks to enter. Its front surface 31 is a slope extending upwards to the ground level 1. Specifically, the trench 3 is a rectangular trench, with a front-to-back length greater than the length of the truck, a lateral width greater than the width of the truck, and a depth greater than the height of the truck's cargo box. Drainage ditches 6 are provided on the left and / or right sides of its bottom along the front-to-back direction for drainage (which can be connected to the underground drainage structure). The slope of the ramp is designed to allow trucks to climb or descend smoothly, and anti-slip grooves are provided to prevent trucks from slipping. Its lower end transitions smoothly into the bottom of the trench 3. More specifically, the front-to-back length of the trench 3 is greater than or equal to 10m, its lateral width is greater than or equal to 3.5m, and its height is greater than or equal to 1m. The front-to-back length of the ramp is greater than or equal to 10m.

[0042] The hydraulic loading ramp 2 includes a mounting base 21, a hydraulic cylinder 22, a hydraulic pump station (not shown), a platform 24, and multiple limiting support rods 18. The mounting base 21 is located at the top of the middle position of the rear trough surface 32 and is vertically oriented. The hydraulic pump station is located on the rear trough surface 32, near the left trough surface 33 or right trough surface 34 of the trough 3, arranged side-by-side with the mounting base 21, and connected to the hydraulic cylinder 22 via pipelines. The platform 24 is oriented longitudinally (horizontally or with its front end tilted upwards), its rear end hinged to the top of the mounting base 21 and flush with the ground 1, and its front end higher than the cargo box of the truck. The hydraulic cylinder 22 is hinged between the mounting base 21 and the platform 24. The hydraulic cylinder 22 extends and is angled forward from bottom to top. When the hydraulic cylinder 22 retracts, the platform 24 rotates towards the mounting base 21 to retract. Specifically, when the hydraulic cylinder 22 retracts, the platform 24 is vertically oriented. Multiple limiting support rods 18 are arranged side by side; the limiting support rods 18 are arranged in the front-to-back direction, and their rear ends are fixed to the mounting base 21, located directly behind the platform 24. When the hydraulic cylinder 22 retracts, the rear side of the platform 24 abuts against the front end of the limiting support rod 18. Specifically, the support rod 18 is a rectangular rod.

[0043] The working process of this device is as follows: The truck moves backward into the trench 3 and is positioned directly in front of the hydraulic loading ramp 2; at this time, the hydraulic cylinder 22 extends, with its front end higher than the cargo box of the truck. Then, the hydraulic cylinder 22 retracts slightly, and the platform 24 rotates downward, with the lower end of the platform 24 abutting against the upper side of the cargo box (at this time, the platform 24 is horizontal or slightly tilted (tilted upward or downward, with the tilt angle preferably less than 5°)). Goods are loaded onto the cargo box through the platform 24. After loading is completed, the hydraulic cylinder 22 extends, the truck moves forward to the front of the platform 24, and the hydraulic cylinder 22 retracts until the platform 24 abuts against the front end of the support rod 18.

[0044] Among them, see Figure 1-11The mounting base 21 includes a flat plate 11, a front short upright plate 12, a rear long upright plate 13, two mounting brackets 15, two buffer blocks 16, and multiple reinforcing plates 14. The flat plate 11 is horizontally arranged in the front-to-back direction, flush with the ground 1, and is a rectangular steel plate arranged in the front-to-back direction. A rectangular notch 17 (arranged in the front-to-back direction) is provided in the middle of its front part. The front short upright plate 12 and the rear long upright plate 13 are both vertically arranged in the left-to-right direction, and are respectively located at the lower front and rear of the flat plate 11. The rear long upright plate 13 is fixed on the rear groove surface 32, and its vertical length is greater than that of the front short upright plate 12. It can be a frame structure (specifically, a H-shaped structure). The front short upright plate 12 is located at the rear side of the rectangular notch 17, and is specifically a rectangular plate. The rear end of the flat plate 11 overlaps with the ground 1 (a rectangular groove that mates with the rear end of the flat plate 11 can be provided in the front-to-back direction). Multiple reinforcing plates 14 are arranged side-by-side, all along the front-rear direction, located on the underside of the flat plate 11, between the front short upright plate 12 and the rear long upright plate 13. Specifically, they are right-angled trapezoidal plates (their lower sides angled upwards from back to front). The rear end of the platform 24 is hinged to the front side of the front short upright plate 12 via multiple hinges arranged side-by-side. Its rear end is flush with the flat plate 11 and is a rectangular structure along the front-rear direction. Its rear part is located in a rectangular notch 17, and its front end curves upwards (when the hydraulic cylinder 22 extends). The hydraulic cylinder 22 is hinged to the lower part of the rear long upright plate 13; specifically, the lower end of the cylinder body of the hydraulic cylinder 22 is hinged to the lower part of the rear long upright plate 13 (via a left-right pivot), and the upper end of its telescopic rod is hinged to the lower rear part of the platform 24 (via a left-right pivot). Two mounting brackets 15 are respectively located at the left and right ends of the front side of the flat plate 11, on the lower side of the flat plate 11, and on the left and right sides of the platform 24. Two buffer blocks 16 are respectively located in front of the two mounting brackets 15, directly behind the carriage, and are specifically vertically arranged strip blocks (specifically rubber blocks), used to prevent the truck from hitting the retracted platform 24. The mounting bracket 15 includes a mounting plate, a rectangular plate, and two L-shaped plates. The mounting plate is arranged vertically along the left and right direction, fixed to the lower front end of the flat plate 11, located at the left or right end of the flat plate 11, and is specifically a rectangular plate. The rectangular plate is arranged vertically along the front and back direction, fixed to the lower side of the flat plate 11, with its rear end fixed to the rear long vertical plate 13 and its front end fixed to the middle of the rear side of the mounting plate. The buffer blocks 16 are fixed to the front side of the mounting plate by the two L-shaped plates. Both L-shaped plates are fixed to the front side of the mounting plate, facing away from each other and arranged vertically. They are located on the left and right sides of the buffer block 16, respectively, and are fixed to the buffer block 16 by two bolts arranged side by side. Specifically, the lateral arm of the L-shaped plate is fixed to the mounting plate. The longitudinal plate of the L-shaped plate is arranged in the front-back direction, and has two through holes arranged side by side on its upper part. The buffer block 16 is located between the longitudinal plates of the two L-shaped plates, and has two through holes arranged side by side on its upper part. Its rear side abuts against the front side of the mounting plate, and its front part protrudes from the L-shaped plate.Both bolts are installed in the left-right direction, passing through the through holes of the L-shaped plate and the buffer block 16 respectively and being locked. The rear end of the limiting support rod 18 is fixed to the front side of the rear long upright plate 13.

[0045] When the hydraulic cylinder 22 extends, the buffer block 16 is located behind the front end of the platform 24. When the hydraulic cylinder 22 retracts, the front side of the buffer block 16 is located in front of the platform 24 (specifically, vertically positioned).

[0046] Among them, see Figure 3-6 In embodiments 12-13, the tabletop 24 of this utility model includes an anti-slip plate 41 and its lower rear inclined plate 42, front upright plate 43, multiple I-beams 44, and multiple right-angle plates 45. The anti-slip plate 41 is a rectangular plate arranged along the front-rear direction, sloping upwards from back to front. Its rear end is hinged to the front short upright plate 12 and is located adjacent to the rear side of the rectangular notch 17. Anti-slip texture is provided on its upper side, and its left and right sides are located adjacent to the inner sides of the corresponding sides of the rectangular notch 17. Its rear end is flush with the flat plate 11, and its upper front end slopes downwards from back to front to form a slope. The rear inclined plate 42 is located at the rear end of the anti-slip plate 41, sloping downwards from back to front. The front upright plate 43 is located at the front of the anti-slip plate 41, vertically arranged along the left-right direction. Multiple I-beams 44 are arranged side-by-side along the front-rear direction, positioned between the rear inclined plate 42 and the front upright plate 43. Multiple right-angle plates 45 are arranged side by side along the front-rear direction, located on the front side of the front upright plate 43. Specifically, one right-angled edge of the upper side of the right-angle plate 45 is fixedly connected to the lower side of the anti-slip plate 41, and the other right-angled edge of its rear side is fixedly connected to the front side of the front upright plate 43. The upper end of the telescopic rod of the hydraulic cylinder 22 is hinged to the lower side of the anti-slip plate 41.

[0047] Example 2

[0048] See Figure 1-2 Example 2 provides a loading and unloading device, whose structure is basically the same as that of Example 1, except that: in this embodiment, a fence 4 is provided on the ground 1 at the top of the left trough surface 33 along the front-back direction; a fence 4 is provided on the ground 1 at the top of the right trough surface 34 along the front-back direction; and a fence 4 is provided on the ground 1 at the top of the rear trough surface 32 along the left-right direction. The fences 4 on the three trough surfaces form a U-shape. A closable door (specifically a double door) is provided in the middle of the fence 4 on the rear trough surface 32, directly opposite the hydraulic loading ramp 2. Specifically, the fence 4 is painted with black and yellow warning paint, and its height is 70cm-120cm.

[0049] Example 3

[0050] See Figure 1-2Example 3 provides a loading and unloading device, whose structure is basically the same as that of Example 1, except that: in this embodiment, two rows of anti-collision steel pillars 5 are arranged side by side on the ground 1 and directly in front of the trench 3. The two rows of anti-collision steel pillars 5 are located on the left and right sides of the truck, respectively, and are aligned front and back with the left trench surface 33 and the right trench surface 34, respectively. Each of them includes multiple anti-collision steel pillars 5 arranged side by side. Specifically, the anti-collision steel pillars 5 are vertically arranged cylinders, painted with black and yellow warning paint, and their height is 80cm-150cm.

[0051] Example 4

[0052] See Figure 2 Example 4 provides a loading and unloading device, whose structure is basically the same as that of Example 1, except that the device in this embodiment also includes a rain shelter 23 and a control cabinet for controlling the hydraulic pump station. Both the control cabinet and the rain shelter 23 are located on the rear trough surface 32, arranged side-by-side and directly below the rain shelter 23. The control cabinet, hydraulic pump station, and rain shelter 23 are all located behind the front of the buffer block 16 to prevent trucks from colliding with them.

[0053] Example 5

[0054] See Figure 3-13 Example 5 provides a loading and unloading device, the structure of which is basically the same as that of Example 1, except that: the number of hydraulic cylinders 22 in this embodiment is two; the two hydraulic cylinders 22 are arranged side by side and driven synchronously, and are respectively located at the left and right ends of the platform 24.

[0055] Example 6

[0056] Example 6 provides a loading and unloading device, the structure of which is basically the same as that of Example 1, except that the number of limiting support rods 18 in this embodiment is two.

[0057] Example 7

[0058] Example 7 provides a loading and unloading device, whose structure is basically the same as that of Example 1, except that: the length of the trench in this embodiment is 18m, its width is 4.6m, and its height is 1.3m. The length of the ramp is 18m. The height of the fence 4 is 0.9m. The height of the anti-collision steel column 5 is 1.2m. The width of the platform 24 is 2m, its length is 1.15m, and the distance between its rear end and the rear trench surface 32 is 0.34m. The width of the rear long upright plate 13 is 2.4m, and its height is 1.15m. The length of the rectangular notch 17 is 20cm. The width of the mounting plate is 20cm, and its length is 31cm.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A loading and unloading device, comprising a hydraulic loading ramp (2), the hydraulic loading ramp (2) comprising a mounting base (21), a hydraulic cylinder (22), a hydraulic pump station and a platform (24), the platform (24) being hinged to the mounting base (21), and the hydraulic cylinder (22) being hinged between the mounting base (21) and the platform (24); characterized in that, The device also includes a trench (3); the trench (3) is arranged in the front-to-back direction, which allows trucks to drive in, and its front trench surface (31) is a slope that slopes upward to the ground (1); the hydraulic loading ramp (2) is located on the rear trench surface (32) of the trench (3); The mounting base (21) is located at the top of the middle position of the rear groove surface (32) and is vertically arranged. The hydraulic pump station is located on the rear groove surface (32) and is located near the left groove surface (33) or right groove surface (34) of the ground groove (3). The platform (24) is arranged in the front-back direction, and its rear end is hinged to the top of the mounting base (21) and is flush with the ground (1). Its front end is higher than the cargo box of the truck. At this time, the hydraulic cylinder (22) extends and is arranged obliquely forward from bottom to top. When the hydraulic cylinder (22) retracts, the platform (24) rotates toward the mounting base (21) to retract.

2. The loading and unloading device according to claim 1, characterized in that, The trench (3) is a rectangular trench, with a front-to-back length greater than the length of the truck, a left-to-right width greater than the width of the truck, and a depth greater than the height of the truck's cargo box.

3. The loading and unloading device according to claim 2, characterized in that, The ground (1) is provided with railings (4) on the top of the left trough surface (33), the right trough surface (34) and the rear trough surface (32). The railings (4) of the three trough surfaces form a U-shape. The middle of the railing (4) on the rear trough surface (32) and facing the hydraulic loading bridge (2) is provided with an openable door. The bottom of the trough (3) is provided with drainage ditches (6) along the front and rear direction on the left and / or right sides. The ground (1) is provided with two rows of anti-collision steel pillars (5) arranged side by side on the left and right sides in front of the trough (3). The slope is provided with anti-slip grooves and its lower end is arc-shaped to the bottom of the trough (3). The two rows of anti-collision steel pillars (5) are located on the left and right sides of the truck respectively, and are aligned with the left trough surface (33) and the right trough surface (34) respectively. Each of them includes multiple anti-collision steel pillars (5) arranged side by side.

4. The loading and unloading device according to claim 1, characterized in that, The mounting base (21) includes a flat plate (11), a front short upright plate (12), a rear long upright plate (13), two mounting brackets (15), two buffer blocks (16), and multiple reinforcing plates (14). The flat plate (11) is horizontally arranged along the front-to-back direction and is flush with the ground (1). A rectangular notch (17) is provided in the middle of its front part. The front short upright plate (12) and the rear long upright plate (13) are both vertically arranged along the left-to-right direction and are respectively located at the front and rear of the lower side of the flat plate (11). The rear long upright plate (13) is fixed on the rear groove surface (32) and its vertical length is greater than that of the front short upright plate (12). The front short upright plate (12) is located at the rear side of the rectangular notch (17). The rear end of the flat plate (11) overlaps the ground (1). Multiple reinforcing plates (14) are arranged side by side on the left and right sides and are all arranged along the front-to-back direction. They are located on the flat plate (11). The platform (24) is located on the lower side of the front short upright plate (12) and the rear long upright plate (13). The rear end of the platform (24) is hinged to the front side of the front short upright plate (12), and its rear end is flush with the flat plate (11). It is a rectangular structure arranged in the front-rear direction, and its rear part is located in the rectangular notch (17). The hydraulic cylinder (22) is hinged to the lower part of the rear long upright plate (13). Two mounting brackets (15) are respectively located at the left and right ends of the front side of the flat plate (11), located on the lower side of the flat plate (11), and located on the left and right sides of the platform (24). Two buffer blocks (16) are respectively located on the front side of the two mounting brackets (15), located directly behind the carriage. When the hydraulic cylinder (22) extends, the buffer block (16) is located behind the front end of the platform (24). When the hydraulic cylinder (22) retracts, the front side of the buffer block (16) is located in front of the platform (24).

5. The loading and unloading device according to claim 4, characterized in that, The mounting bracket (15) includes a mounting plate, a rectangular plate, and two L-shaped plates arranged side by side. The mounting plate is arranged in the left-right direction and is vertically arranged. It is fixed to the lower front end of the plate (11) and is located at the left or right end of the plate (11). The rectangular plate is arranged in the front-back direction and is vertically arranged. It is fixed to the lower side of the plate (11), and its rear end is fixed to the rear long upright plate (13). Its front end is fixed to the middle of the rear side of the mounting plate. The buffer block (16) is a vertically arranged strip block and is fixed to the front side of the mounting plate by two L-shaped plates. Both L-shaped plates are fixed to the front side of the mounting plate, are arranged back to back, are vertically arranged, and are located on the left and right sides of the buffer block (16). They are fixed to the buffer block (16) by two bolts arranged side by side.

6. The loading and unloading device according to claim 4, characterized in that, The number of hydraulic cylinders (22) is two; the two hydraulic cylinders (22) are arranged side by side and driven synchronously, and are respectively located at the left and right ends of the platform (24); the lower end of the cylinder body of the hydraulic cylinder (22) is hinged to the lower part of the rear long plate (13), and the upper end of its telescopic rod is hinged to the lower rear part of the platform (24); when the hydraulic cylinder (22) retracts, the platform (24) is vertically arranged.

7. The loading and unloading device according to claim 6, characterized in that, The mounting base (21) also includes multiple limiting support rods (18), which are arranged side by side. The limiting support rods (18) are arranged in the front-back direction, and their rear ends are fixed to the front side of the rear long upright plate (13), which is located directly behind the platform (24). When the hydraulic cylinder (22) retracts, the rear side of the platform (24) abuts against the front end of the limiting support rod (18).

8. The loading and unloading device according to claim 4, characterized in that, The tabletop (24) includes an anti-slip plate (41) and its lower rear inclined plate (42), front upright plate (43), multiple I-beams (44), and multiple right-angle plates (45); the anti-slip plate (41) is a rectangular plate arranged in the front-back direction, which is arranged diagonally upward from back to front. Its rear end is hinged to the front short upright plate (12) and is located adjacent to the front of the rear side of the rectangular notch (17). Its upper side is provided with anti-slip texture. Its left and right sides are located adjacent to the inner sides of the corresponding sides of the rectangular notch (17). Its rear end is flush with the flat plate (11), and its front upper part is diagonally downward from back to front. The rear inclined plate (42) is located at the rear end of the anti-slip plate (41) and is arranged diagonally downward from back to front; the front upright plate (43) is located at the front of the anti-slip plate (41) and is arranged vertically along the left and right directions; multiple I-beams (44) are arranged side by side on the left and right sides, along the front and back directions, and are located between the rear inclined plate (42) and the front upright plate (43); multiple right-angle plates (45) are arranged side by side on the left and right sides, along the front and back directions, and are located on the front side of the front upright plate (43); the upper end of the telescopic rod of the hydraulic cylinder (22) is hinged to the lower side of the anti-slip plate (41).

9. The loading and unloading device according to claim 4, characterized in that, The device also includes a rain shelter (23) and a control cabinet for controlling the hydraulic pump station. The control cabinet and the rain shelter (23) are both located on the rear groove surface (32). The control cabinet and the hydraulic pump station are arranged side by side and are both located directly below the rain shelter (23). The control cabinet, the hydraulic pump station and the rain shelter (23) are all located behind the front side of the buffer block (16).

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