Road cargo transporting and unloading platform

Abstract

The utility model relates to a road cargo transportation unloading platform, which belongs to the technical field of unloading platforms and comprises a chassis, a limiting component for limiting the movement of the chassis is mounted at the bottom of the chassis, an unloading mechanism for unloading is mounted at the top of the chassis, and two universal wheels are fixedly mounted on the right side of the bottom of the chassis. The limiting assembly comprises two supporting plates fixed to the bottom of the chassis, a supporting shaft rotationally connected between the opposite sides of the two supporting plates through bearings, two walking wheels fixedly installed at the two ends of the supporting shaft correspondingly, and two square plates fixed to the bottom of the chassis. The round rod is fixed between the opposite sides of the two square plates, and the four sleeves are arranged on the outer side of the round rod in a sleeving mode. According to the road cargo transporting and unloading platform, the stability of the unloading platform in the working process can be further improved, an operator can conveniently conduct loosening or fastening operation, and the practicability of the road cargo transporting and unloading platform is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unloading platforms, in particular to a road cargo transportation unloading platform. Background Art

[0002] During road truck transportation, an unloading platform is usually required to assist in loading and unloading goods. The unloading platform is a transition platform that makes loading and unloading goods convenient. Through the action of the slope, the goods can be moved from the truck to the ground, or from the ground to the inside of the truck for storage.

[0003] According to a road freight transport unloading platform disclosed in Chinese patent announcement No. CN219708553U, the patent can make the unloading slope formed by the unloading plate smoother through the cooperation of structures such as a screw and an extension plate, thereby reducing the difficulty of unloading. At the same time, the extended extension plate is used to contact with the ground, and the friction between them prevents slipping, so that the device can unload normally. However, this patent still has certain shortcomings in actual use. The friction between a single extension plate and the ground cannot effectively prevent the device as a whole from slipping. The wheel structure arranged on the periphery of the chassis device is still prone to causing the chassis device to move and deviate. Moreover, under the action of long-term friction, the contact surface between the extension plate and the ground will cause serious wear, which is not conducive to the stable unloading work, resulting in a certain room for improvement in the practicality of the existing road freight transport unloading platform. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the existing technology, the utility model provides a road freight transport unloading platform, which has the advantages of being able to further improve the stability of the unloading platform during operation, and solves the problem that the existing road freight transport unloading platform has poor stability during operation and is still prone to activity deviation.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of further improving the stability of the unloading platform during operation, the utility model provides the following technical solutions: a road cargo transport unloading platform, comprising a chassis, a limiting component for limiting the movement of the chassis is installed at the bottom of the chassis, an unloading mechanism for unloading is installed at the top of the chassis, and two universal wheels are fixedly installed on the right side of the bottom of the chassis;

[0008] The limiting assembly includes two support plates fixed to the bottom of the chassis, a support shaft rotatably connected between opposite sides of the two support plates through a bearing, two walking wheels fixedly installed at both ends of the support shaft, two square plates fixed to the bottom of the chassis, a round rod fixed between opposite sides of the two square plates, four sleeves sleeved on the outside of the round rod, an arc-shaped plate fixed between the outsides of two corresponding sleeves, an anti-slip pad bonded to the inner side of the arc-shaped plate, an extrusion block fixed to the bottom of the arc-shaped plate, a threaded rod rotatably connected to the left side of the extrusion block on the right side through a bearing, and an internal threaded cylinder threadedly connected to the outside of the threaded rod.

[0009] Furthermore, the unloading mechanism includes two fixed plates fixed on the top of the chassis, a screw rod rotatably connected between opposite sides of the two fixed plates through a bearing, a positioning rod fixed between opposite sides of the two fixed plates, a first driving mechanism fixedly installed on the top of the chassis, a sliding block threadedly connected to the outside of the screw rod, an adjustment plate fitly placed between the tops of the two fixed plates, a docking block fixed to the bottom of the adjustment plate, a connecting rod hinged between the docking block and the back of the sliding block through two pins, two hydraulic cylinders fixedly installed on the top of the chassis, a connecting seat fixedly installed on the output shaft of the hydraulic cylinder, a connecting shaft hinged to the top of the connecting seat through a pin, and an extension component installed at the bottom of the adjustment plate.

[0010] Furthermore, the extension assembly includes two symmetrical plates fixed to the bottom of the adjustment plate, a rotating rod rotatably connected between opposite sides of the two symmetrical plates through a bearing, a gear fixed to the outside of the rotating rod, a second driving mechanism fixedly installed at the bottom of the adjustment plate and located on the front side of the front symmetrical plate, a sliding groove opened on the left side of the adjustment plate, an extension plate slidably connected to the inner side of the sliding groove, a rack fixed to the bottom of the extension plate and meshing with the outer side of the gear, a limit block fixed to the top of the extension plate, and a limit hole opened on the top of the adjustment plate for the limit block to slide.

[0011] Furthermore, the output shaft of the second driving mechanism passes through the front side of the front symmetrical plate and is fixedly connected to the front end of the rotating rod. A control groove is provided at the bottom of the adjusting plate for the rack to slide and is connected to the inside of the sliding groove. The left side of the control groove is open, and the top of the limit block is located inside the limit hole.

[0012] Furthermore, the output shaft of the first driving mechanism passes through the left side of the left fixed plate and is fixedly connected to the left end of the screw rod, the right end of the positioning rod passes through the left side of the sliding block, the connecting rod is in an inclined state, and the top end of the connecting shaft is fixedly connected to the left side of the bottom of the adjustment plate.

[0013] Furthermore, two ends of the support shaft respectively pass through opposite sides of the two support plates, the two running wheels are respectively located on the front and back of the chassis, and the two arc-shaped plates are symmetrically distributed left and right.

[0014] Furthermore, the arc plate is located on the outside of the support shaft, the anti-slip pad is fitted with the outside of the support shaft, the left side of the left extrusion block is provided with an movable hole for the threaded rod to pass through and move, and the right end of the internal threaded tube is abutted against the left side of the left extrusion block.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a road freight transport unloading platform, which has the following beneficial effects:

[0017] The road cargo transport unloading platform can further improve the stability of the unloading platform during operation through the coordinated use of the limiting components at the bottom of the chassis and the unloading mechanism at the top, so that the wheel structure can be restricted, thereby effectively preventing the wheel structure from slipping, improving the stability of the entire device during operation, and allowing the unloading work to proceed normally and stably, and making it convenient for the operator to loosen or tighten the cargo. The operation method is extremely convenient and simple, thereby effectively improving the practicability of the road cargo transport unloading platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a partial enlarged schematic diagram of the A part in the structure of the utility model;

[0020] Figure 3 The utility model structure Figure 2 A three-dimensional schematic diagram of the middle arc plate connection structure;

[0021] Figure 4 It is a cross-sectional view of the extension plate connection structure in the structure of the utility model;

[0022] Figure 5 It is a partial enlarged schematic diagram of part B in the structure of the utility model.

[0023] In the figure: 1 chassis, 200 limiting components, 201 supporting plate, 202 supporting shaft, 203 walking wheel, 204 square plate, 205 round rod, 206 sleeve, 207 arc plate, 208 anti-skid pad, 209 extrusion block, 210 threaded rod, 211 internal threaded tube, 300 unloading mechanism, 301 fixing plate, 302 screw rod, 303 positioning rod, 304 first driving mechanism, 305 sliding block, 306 adjusting plate, 307 docking block, 308 connecting rod, 309 hydraulic cylinder, 310 connecting seat, 311 connecting shaft, 312 symmetrical plate, 313 rotating rod, 314 gear, 315 second driving mechanism, 316 sliding groove, 317 extension plate, 318 rack, 319 limit block, 320 limit hole, 4 universal wheel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: a road cargo transport unloading platform, comprising a chassis 1, a limiting component 200 for limiting the movement of the chassis 1 is installed at the bottom of the chassis 1, a unloading mechanism 300 for unloading is installed at the top of the chassis 1, and two universal wheels 4 are fixedly installed on the right side of the bottom of the chassis 1; through the coordinated use of the limiting component 200 at the bottom of the chassis 1 and the unloading mechanism 300 at the top, the stability of the unloading platform during operation can be further improved, so that the wheel structure can be restricted, thereby effectively preventing the wheel structure from slipping, improving the stability of the device as a whole during operation, so that the unloading work can be carried out normally and stably, and it is convenient for the operator to loosen or tighten the operation, and its operation method is extremely convenient and simple, thereby effectively improving the practicality of the road cargo transport unloading platform.

[0026] It should be noted that the top of the chassis 1 is equipped with a power supply mechanism, which can provide power support to various electrical equipment.

[0027] In this embodiment, the limiting component 200 is a structure used to further limit and stabilize the platform as a whole.

[0028] like Figure 1 , Figure 2 and Figure 3As shown, the limiting assembly 200 includes two support plates 201 fixed to the bottom of the chassis 1, a support shaft 202 rotatably connected between opposite sides of the two support plates 201 through a bearing, two walking wheels 203 respectively fixedly installed at both ends of the support shaft 202, two square plates 204 fixed to the bottom of the chassis 1, a round rod 205 fixed between opposite sides of the two square plates 204, four sleeves 206 sleeved on the outside of the round rod 205, an arc plate 207 fixed between the outsides of two corresponding sleeves 206, an anti-skid pad 208 bonded to the inner side of the arc plate 207, an extrusion block 209 fixed to the bottom of the arc plate 207, a threaded rod 210 rotatably connected to the left side of the right extrusion block 209 through a bearing, and an internal threaded cylinder 211 threadedly connected to the outside of the threaded rod 210.

[0029] It should be noted that both ends of the support shaft 202 pass through opposite sides of the two support plates 201 , and the two running wheels 203 are respectively located on the front and back of the chassis 1 , so that the running wheels 203 can rotate stably under the action of the support shaft 202 .

[0030] In addition, the two arc plates 207 are symmetrically distributed on the left and right sides. The arc plates 207 are located on the outside of the support shaft 202, and the anti-skid pad 208 fits the outside of the support shaft 202, so that the arc plates 207 can apply pressure to the outside of the support shaft 202 through the anti-skid pad 208 after being squeezed, thereby making the support shaft 202 difficult to rotate.

[0031] At the same time, a movable hole is opened on the left side of the left extrusion block 209 for the threaded rod 210 to pass through and move. The right end of the internal threaded tube 211 abuts against the left side of the left extrusion block 209, so that the threaded rod 210 can be offset to a certain extent inside the movable hole, so that when the internal threaded tube 211 rotates, it can push the left extrusion block 209 to move to the right, and the arc plate 207 is used to apply limited friction pressure to the outside of the support shaft 202, which plays a role in increasing stability. Among them, two straight rods are fixedly connected to the outside of the internal threaded tube 211, and the internal threaded tube 211 is conveniently rotated by the two straight rods.

[0032] In this embodiment, the unloading mechanism 300 is a structure for facilitating the unloading work.

[0033] like Figure 1 , Figure 4 and Figure 5As shown, the unloading mechanism 300 includes two fixed plates 301 fixed on the top of the chassis 1, a screw rod 302 rotatably connected between the opposite sides of the two fixed plates 301 through a bearing, a positioning rod 303 fixed between the opposite sides of the two fixed plates 301, a first driving mechanism 304 fixedly installed on the top of the chassis 1, a sliding block 305 threadedly connected to the outside of the screw rod 302, an adjustment plate 306 fitly placed between the tops of the two fixed plates 301, a docking block 307 fixed to the bottom of the adjustment plate 306, a connecting rod 308 hinged between the docking block 307 and the back of the sliding block 305 through two pins, two hydraulic cylinders 309 fixedly installed on the top of the chassis 1, a connecting seat 310 fixedly installed on the output shaft of the hydraulic cylinder 309, a connecting shaft 311 hinged to the top of the connecting seat 310 through a pin, and an extension component installed at the bottom of the adjustment plate 306.

[0034] It should be noted that the output shaft of the first drive mechanism 304 passes through the left side of the left fixed plate 301 and is fixedly connected to the left end of the screw rod 302. The first drive mechanism 304 can be a servo motor, so that the first drive mechanism 304 can drive the screw rod 302 to rotate. The right end of the positioning rod 303 passes through the left side of the sliding block 305, so that the sliding block 305 can be limited by the positioning rod 303, so that it can be driven by the screw rod 302 to move.

[0035] In addition, the connecting rod 308 is in an inclined state. Specifically, when the bottom of the adjusting plate 306 is in contact with the tops of the two fixed plates 301, the connecting rod 308 is still in an inclined state, making it convenient for the connecting rod 308 to push the docking block 307 to move. The top of the connecting shaft 311 is fixedly connected to the left side of the bottom of the adjusting plate 306, so that the left side of the bottom of the adjusting plate 306 can be supported by the connecting shaft 311. At the same time, under the lifting action of the hydraulic cylinder 309, the left side of the adjusting plate 306 can be lifted upward, so that the tilt angle of the adjusting plate 306 during the unloading process will not be too large, thereby facilitating the movement of goods.

[0036] In this embodiment, the extension component is a structure used to extend the unloading length.

[0037] like Figure 4 and Figure 5As shown, the extension assembly includes two symmetrical plates 312 fixed to the bottom of the adjustment plate 306, a rotating rod 313 rotatably connected between the opposite sides of the two symmetrical plates 312 through a bearing, a gear 314 fixed to the outside of the rotating rod 313, a second driving mechanism 315 fixedly installed at the bottom of the adjustment plate 306 and located on the front side of the front symmetrical plate 312, a sliding groove 316 opened on the left side of the adjustment plate 306, an extension plate 317 slidably connected to the inner side of the sliding groove 316, a rack 318 fixed to the bottom of the extension plate 317 and meshing with the outer side of the gear 314, a limit block 319 fixed to the top of the extension plate 317, and a limit hole 320 opened on the top of the adjustment plate 306 for the limit block 319 to slide.

[0038] It should be noted that the output shaft of the second driving mechanism 315 passes through the front side of the front symmetrical plate 312 and is fixedly connected to one end of the front side of the rotating rod 313, so that the second driving mechanism 315 can drive the rotating rod 313 to rotate. A control groove for the rack 318 to slide and connected to the inside of the sliding groove 316 is provided at the bottom of the adjusting plate 306. The left side of the control groove is open, so that the rack 318 can be driven by the gear 314 to move normally on the inner side of the control groove.

[0039] In addition, the top of the limit block 319 is located inside the limit hole 320, so that the limit block 319 will not hinder the movement of the goods on the top of the adjustment plate 306. The second driving mechanism 315 can be a stepping motor with a self-locking function, so that the gear 314 will not easily rotate again after completing the transmission work. A rubber sleeve is bonded to the left side of the extension plate 317. The rubber sleeve can not only increase the friction between the ground, but also protect the left side of the extension plate 317.

[0040] The working principle of the above embodiment is:

[0041] When unloading, the chassis 1 is pushed to the rear of the truck under the action of the universal wheel 4 and the walking wheel 203, and the first driving mechanism 304 is started to rotate the screw rod 302. Under the action of the outer thread rotation thrust of the screw rod 302 and the positioning limit of the positioning rod 303, the sliding block 305 can be moved left and right for adjustment. The connecting rod 308 can drive the docking block 307 to move upward or downward, so that the adjustment plate 306 can be tilted as a whole, so that the right side of the adjustment plate 306 contacts the rear of the truck, and the hydraulic cylinder 309 is started to push the left side of the adjustment plate 306 to move upward so that the tilt angle of the adjustment plate 306 is not too large. The internal threaded cylinder 211 is rotated to make it move and adjust under the action of the outer thread of the threaded rod 210, and the end of the internal threaded cylinder 211 is The left extrusion block 209 is pushed to move toward the side close to the support shaft 202, so that the inner side of the left arc plate 207 abuts against the outer side of the support shaft 202 and squeezes the outer side of the support shaft 202. Under the action of the anti-skid pad 208, the extrusion friction can be further increased, so that the support shaft 202 cannot rotate easily, which can limit the support shaft 202 and the walking wheel 203 and prevent the walking wheel 203 from rotating. At this time, the chassis 1 is already in a stable state, and the second driving mechanism 315 is started to drive the rotating rod 313 to rotate, so that the gear 314 rotates, which can drive the rack 318 to move, so that the extension plate 317 can slide out from the inner side of the sliding groove 316, and the left bottom of the extension plate 317 abuts against the ground, so that the unloading work can be carried out normally and stably.

[0042] Compared with the prior art, the road cargo transport unloading platform, through the coordinated use of the limiting component 200 at the bottom of the chassis 1 and the unloading mechanism 300 at the top, can further improve the stability of the unloading platform during operation, so that the wheel structure can be restricted, thereby effectively preventing the wheel structure from slipping, and improving the stability of the entire device during operation, so that the unloading work can be carried out normally and stably, and it is convenient for the operator to loosen or tighten the operation. The operation method is extremely convenient and simple, thereby effectively improving the practicality of the road cargo transport unloading platform, and solving the problem that the existing road cargo transport unloading platform is poor in stability during operation and is still prone to activity deviation.

[0043] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The provision of power supply is common knowledge in the field. The main controller can be a conventional known device such as a small control computer that plays a control role. It can be implemented through simple programming by technicians in the field, and they are all existing publicly available power connection technologies and will not be described in detail in the article.

[0044] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0045] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A road freight transport unloading platform, comprising a chassis (1), Features: A limiting assembly (200) for limiting the movement of the chassis (1) is installed at the bottom of the chassis (1), a loading mechanism (300) for loading is installed at the top of the chassis (1), and two universal wheels (4) are fixedly installed on the right side of the bottom of the chassis (1); The limiting assembly (200) comprises two support plates (201) fixed to the bottom of the chassis (1), a support shaft (202) rotatably connected between opposite sides of the two support plates (201) through a bearing, two walking wheels (203) respectively fixedly mounted at both ends of the support shaft (202), two square plates (204) fixed to the bottom of the chassis (1), a round rod (205) fixed between opposite sides of the two square plates (204), four sleeves (206) sleeved on the outside of the round rod (205), an arc-shaped plate (207) fixed between the outsides of two corresponding sleeves (206), an anti-slip pad (208) bonded to the inside of the arc-shaped plate (207), an extrusion block (209) fixed to the bottom of the arc-shaped plate (207), a threaded rod (210) rotatably connected to the left side of the right extrusion block (209) through a bearing, and an internal threaded cylinder (211) threadedly connected to the outside of the threaded rod (210).

2. A road freight transport unloading platform according to claim 1, Features: The unloading mechanism (300) comprises two fixing plates (301) fixed to the top of the chassis (1), a screw rod (302) rotatably connected between opposite sides of the two fixing plates (301) via a bearing, a positioning rod (303) fixed between opposite sides of the two fixing plates (301), a first driving mechanism (304) fixedly mounted on the top of the chassis (1), a sliding block (305) threadedly connected to the outside of the screw rod (302), and an adjusting block (305) placed in close contact between the tops of the two fixing plates (301). A section plate (306), a docking block (307) fixed to the bottom of the adjusting plate (306), a connecting rod (308) hinged between the docking block (307) and the back of the sliding block (305) via two pins, two hydraulic cylinders (309) fixedly mounted on the top of the chassis (1), a connecting seat (310) fixedly mounted on the output shaft of the hydraulic cylinder (309), a connecting shaft (311) hinged to the top of the connecting seat (310) via a pin, and an extension component mounted on the bottom of the adjusting plate (306).

3. A road freight transport unloading platform according to claim 2, Features: The extension assembly comprises two symmetrical plates (312) fixed at the bottom of the adjustment plate (306), a rotating rod (313) rotatably connected between opposite sides of the two symmetrical plates (312) through a bearing, a gear (314) fixed to the outside of the rotating rod (313), a second driving mechanism (315) fixedly installed at the bottom of the adjustment plate (306) and located at the front side of the front symmetrical plate (312), a sliding groove (316) opened at the left side of the adjustment plate (306), an extension plate (317) slidably connected to the inner side of the sliding groove (316), a rack (318) fixed at the bottom of the extension plate (317) and meshing with the outer side of the gear (314), a stop block (319) fixed at the top of the extension plate (317), and a stop hole (320) opened at the top of the adjustment plate (306) and for the stop block (319) to slide.

4. A road freight transport unloading platform according to claim 3, Features: The output shaft of the second driving mechanism (315) passes through the front side of the front symmetrical plate (312) and is fixedly connected to one end of the front side of the rotating rod (313); a control groove for sliding the rack (318) and communicating with the inside of the sliding groove (316) is provided at the bottom of the adjusting plate (306); the left side of the control groove is open; and the top of the limit block (319) is located inside the limit hole (320).

5. A road freight transport unloading platform according to claim 2, Features: The output shaft of the first driving mechanism (304) passes through the left side of the left fixed plate (301) and is fixedly connected to the left end of the screw rod (302); the right end of the positioning rod (303) passes through the left side of the sliding block (305); the connecting rod (308) is in an inclined state; and the top end of the connecting shaft (311) is fixedly connected to the left side of the bottom of the adjustment plate (306).

6. A road freight transport unloading platform according to claim 1, Features: The two ends of the support shaft (202) respectively penetrate the opposite sides of the two support plates (201); the two running wheels (203) are respectively located on the front and back sides of the chassis (1); and the two arc-shaped plates (207) are symmetrically distributed on the left and right sides.

7. A road freight transport unloading platform according to claim 1, Features: The arc plate (207) is located on the outside of the support shaft (202), the anti-skid pad (208) is in contact with the outside of the support shaft (202), and a movable hole for the threaded rod (210) to pass through and move is provided on the left side of the left extrusion block (209), and the right end of the internal threaded tube (211) is in contact with the left side of the left extrusion block (209).

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