An integrated drop floor transport vehicle bed and method

Abstract

The application discloses an integrated unloading type transport carriage and a method thereof, and relates to the technical field of transport carriages. The integrated unloading type transport carriage comprises a carriage, a fixed rod fixedly arranged in the carriage, and a one-way clamping piece arranged on the fixed rod and used for providing vertical positioning. An active frame assembly is slidably arranged on the fixed rod. The active frame assembly comprises a base frame, a sliding frame and an extension frame. The sliding frame can slide horizontally relative to the base frame, and the extension frame can slide horizontally relative to the sliding frame. A supporting rod is arranged on the extension frame. The integrated unloading type transport carriage is mechanically connected with a locking mechanism through the supporting rod, so that the switching between the "laid flat" state and the "vertical" state is realized. The resistance in the unloading process is reduced through the rolling of a rotating wheel. The lifting of the base frame facilitates the formation of multiple loading spaces in the carriage, and each layer is separately arranged, so that targeted unloading can be performed on different layers.

Description

Technical Field

[0001] This invention relates to the field of transport vehicle technology, and more specifically to an integrated unloading transport vehicle and its method. Background Technology

[0002] In the logistics and transportation sector, the loading and unloading efficiency of freight vehicles directly impacts operating costs. Traditional freight vehicles typically rely on external loading and unloading equipment or manual handling when loading and unloading goods, resulting in low efficiency and high labor costs.

[0003] Based on Chinese Patent Publication No. CN216886408U, a freight car body for easy loading and unloading is disclosed, including a floor plate with a groove in the middle. Limiting baffles are respectively provided on the front and rear sides of the top of the groove, and the limiting baffles are located on the upper surface of the floor plate. A pushing device is provided in the groove, and a movable push plate is provided on the pushing device. The movable push plate is connected to the pushing device by a locking bolt through a threaded connection. The movable push plate is slidably disposed on the limiting baffles. A vertical plate is provided on one end of the floor plate on the right side of the groove, and a tailgate is provided on one end of the floor plate on the left side of the groove. A movable compartment is provided below the tailgate in one end of the floor plate. This utility model uses the pushing device to drive the movable push plate to easily push materials to the required storage position on the floor plate. A hydraulic rod moves a guide plate to the required working position, facilitating unloading. Furthermore, a shock-absorbing device, combined with a flip-up side door, ensures that the materials in the freight car achieve a shock-absorbing and buffering effect.

[0004] In the aforementioned patent, the rigid contact between the pusher plate and the goods generates concentrated stress during the pushing process, and the sliding friction between the limiting baffle and the goods can easily lead to deformation of the goods or damage to the packaging. Furthermore, the pushing device only pushes the bottom layer of goods. During the pushing process of multiple layers of goods, the top layer will tip over due to inertia and fall to the other side of the pushing device, which may cause the groove to be covered by the tipped-over goods, making it difficult for the pushing device to recover. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated unloading transport vehicle and its method to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated unloading transport carriage, including a carriage and a fixing rod fixedly installed inside the carriage, and the fixing rod is provided with a one-way clamp for providing vertical positioning;

[0007] A movable frame assembly is slidably mounted on a fixed rod. The movable frame assembly includes a base frame, a slide frame, and an extension frame. The slide frame is slidably mounted on the base frame, and the extension frame is slidably mounted on the slide frame.

[0008] The extension frame is provided with a support rod, and the bottom end of the support rod is provided with a roller for rolling on the base frame, and the roller is provided with a limit rod;

[0009] It also includes a locking mechanism that is rotatably mounted on the base frame;

[0010] The support rod has two states: lying down and standing up. The state switching is achieved by the cooperation of a rotating wheel and a locking mechanism. The locking mechanism includes a first limiting part for limiting, a second limiting part for unloading, and a blocking part for blocking.

[0011] Preferably, a hook is rotatably provided on the base frame, and a first tension spring is provided on the hook to maintain a predetermined angle;

[0012] It also includes a control lever that is slidably mounted on the base frame;

[0013] A pull rope is connected to the hook, and the pull rope is connected to the control rod.

[0014] Preferably, the extension frame is provided with a fixed seat, and the top end of the support rod is rotatably connected to a sliding seat;

[0015] The sliding seat is slidably connected to the fixed seat and has a high position and a low position in the vertical direction. The sliding seat can switch between different states when the support rod is in operation.

[0016] Preferably, the rollers comprise two sets and are respectively disposed at opposite ends of the extension frame.

[0017] Preferably, the base frame is provided with a telescopic rod assembly for load transfer, and the telescopic rod assembly has an inclined state for avoiding the cargo at the bottom.

[0018] Preferably, the telescopic rod assembly includes a rotating rod, a telescopic rod, and a second spring. The rotating rod is rotatably mounted on the base frame, and the telescopic rod is slidably mounted on the rotating rod and connected to the slide. The end of the rotating rod is connected to a pressure plate for supporting the cargo.

[0019] Preferably, the extension frame is provided with a conveyor belt for transporting goods, and the conveyor belt is driven by a driven wheel and a driving wheel.

[0020] Preferably, the conveyor belt has multiple through holes, and anti-slip parts are fixedly provided on the edges of the through holes.

[0021] An integrated unloading transport vehicle method, applied to the integrated unloading transport vehicle described in the above scheme, includes the following steps:

[0022] Step 1: When unloading is required, pull the carriage and extension frame out of the carriage to make the wheels slide along the underframe;

[0023] Step 2: When the limit rod is blocked by the blocking part of the locking mechanism, continue to pull the extension frame so that the support rod deflects to a vertical state with the wheel as the fulcrum.

[0024] Step 3: The support rod continues to move against the resistance of the locking mechanism, breaks free from the limit of the locking mechanism, and pulls the extension frame out of the carriage to transport the goods via the conveyor belt.

[0025] Step 4: After unloading, retract the extension rack into the carriage;

[0026] Step 5: When the rotating wheel approaches the locking mechanism, the first limiting part causes the limiting rod to stop, and the support rod deflects to release the vertical state and return to the folded state.

[0027] Preferably, in step three, when the extension frame moves to the point where the second end wheel contacts the locking mechanism, the second limiting part hooks the limiting rod, causing the extension frame to deflect downwards with the second end wheel as the fulcrum to form an unloading ramp, while the conveyor belt continues to operate to assist the goods in sliding down.

[0028] In the above technical solution, the integrated unloading transport carriage and its method provided by the present invention have the following beneficial effects: the mechanical linkage between the support rod and the locking mechanism realizes the switching between the two states of "lying down" and "vertical", the rolling of the rotating wheel reduces the resistance during the unloading process, and the lifting of the base frame facilitates the formation of multi-layer loading space in the carriage, and each layer is set separately, so that different layers can be unloaded in a targeted manner. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0030] Figure 1 This is an overall three-dimensional schematic diagram provided for an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the fixed rod and movable frame assembly inside the carriage provided in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the movable frame assembly structure provided in an embodiment of the present invention;

[0033] Figure 4 This is a partial front view of the movable frame assembly provided in an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the support rod and wheel structure provided in an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the rotor state in a collapsed state provided in an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the rotating wheel in a vertical state provided in an embodiment of the present invention;

[0037] Figure 8 Provided for embodiments of the present invention Figure 6 Enlarged schematic diagram of structure A in the middle;

[0038] Figure 9 Provided for embodiments of the present invention Figure 7 Enlarged schematic diagram of the B-structure;

[0039] Figure 10 This is a schematic diagram of the driven wheel and drive wheel structure provided in an embodiment of the present invention;

[0040] Figure 11 This is a schematic diagram of the opening and anti-slip part structure provided in an embodiment of the present invention;

[0041] Figure 12 This is a schematic diagram of the telescopic rod assembly structure provided in an embodiment of the present invention.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Carriage; 2. Fixed rod; 21. One-way clamp; 3. Movable frame assembly; 31. Base frame; 32. Slide; 33. Extension frame; 34. Conveyor belt; 341. Through hole; 342. Anti-slip part; 343. Driven wheel; 344. Drive wheel; 4. Hook; 41. First tension spring; 42. Pull rope; 43. Control rod; 5. Support rod; 51. Rotating wheel; 52. Limiting rod; 53. Second tension spring; 54. Fixed seat; 55. Sliding seat; 56. First spring; 57. Locking groove; 6. Telescopic rod assembly; 61. Telescopic rod; 62. Second spring; 63. Rotating rod; 64. Pressure plate; 7. Locking mechanism; 71. Torsion spring; 72. First limiting part; 73. Blocking part; 74. Second limiting part. Detailed Implementation

[0044] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] like Figure 1-12 As shown, an integrated unloading transport vehicle includes a vehicle body 1 and a fixing rod 2 fixedly installed inside the vehicle body 1. The fixing rod 2 is provided with a one-way clamp 21 for providing vertical positioning.

[0046] The movable frame assembly 3 is slidably mounted on the fixed rod 2. The movable frame assembly 3 includes a base frame 31, a slide 32, and an extension frame 33; the slide 32 is slidably mounted on the base frame 31, and the extension frame 33 is slidably mounted on the slide 32 (e.g., Figure 3 and Figure 4 (as shown)

[0047] The extension frame 33 is provided with a support rod 5, and the bottom end of the support rod 5 is provided with a roller 51 for rolling on the base frame 31, and the roller 51 is provided with a limit rod 52.

[0048] It also includes a locking mechanism 7 that is rotatably mounted on the base frame 31;

[0049] The support rod 5 has two states: folded and upright. The state switching is achieved through the interaction of the rotating wheel 51 and the locking mechanism 7. The locking mechanism 7 includes a first limiting part 72 for limiting movement, a second limiting part 74 for unloading, and a blocking part 73 for obstruction (e.g., ...). Figure 8 (As shown).

[0050] Specifically, the fixed rod 2 is set along the height direction of the carriage 1, and the number of movable frame components 3 is selected according to the specific quantity of goods, and can be multiple sets. The slide 32 and the extension frame 33 are driven by manual push or hydraulic cylinder. The end of the slide 32 near the interior of the carriage 1 is fixedly equipped with a baffle, which can drive the extension frame 33 to move synchronously by pulling the slide 32 and moving through the baffle. In addition, a fixed seat 54 is provided on the extension frame 33, and a sliding seat 55 is rotatably connected to the top of the support rod 5; the sliding seat 55 is slidably connected to the fixed seat 54 and has a high position and a low position in the vertical direction, and the sliding seat 55 can be moved and switched when the state of the support rod 5 is switched.

[0051] It also includes a first spring 56 fixedly connected at both ends to the sliding seat 55 and the extension frame 33 respectively, so that the sliding seat 55 is held in the low position by default. A second tension spring 53 is provided on the rotating wheel 51 to provide a reset force when the state is switched, and a locking groove 57 is provided on the fixed seat 54. The locking mechanism 7 is rotatably mounted on the base frame 31 via a rotating shaft, is Y-shaped, and is provided with a torsion spring 71, so that the locking mechanism 7 is held at a predetermined angle by default, ensuring that the blocking part 73 is located on the moving path of the rotating wheel 51 (e.g., Figure 6 (As shown).

[0052] Furthermore, during loading or storage, support rod 5 is in a collapsed state (e.g., Figure 6(As shown). At this time, the side of the support rod 5 abuts against the base frame 31, and the fixed seat 54 abuts against the end face of the rotating wheel 51 to form a mechanical lock, preventing the rotating wheel 51 from rotating accidentally. The limiting rod 52 cooperates with the blocking part 73, and the blocking part 73 is located on the moving path of the limiting rod 52, effectively preventing the extension frame 33 from slipping. In this state, the movable frame assembly 3 is compactly stored, saving space and facilitating the layered loading of goods (such as dividing the carriage 1 into multiple horizontal spaces). Compared with the layered structure of the prior art (such as the workpiece transport vehicle with a layered structure disclosed in CN223059015U), the present invention eliminates the risk of shaking during the transportation of goods through automatic locking.

[0053] During unloading, the user pulls the carriage 32 and extension frame 33 outwards, unlocking the wheel 51 and switching the support rod 5 to a vertical position (e.g., Figure 7 (As shown). Specifically, the unlocking method involves the rotating wheel 51 sliding with the extension frame 33 until the limiting rod 52 is blocked by the blocking part 73. The extension frame 33 then continues to move, and the support rod 5 deflects around the rotating wheel 51 as a fulcrum. The sliding seat 55 rises to a high position against the first spring 56, and the limiting rod 52 abuts against the locking groove 57 of the fixed seat 54 to lock. At this time, the second tension spring 53 is coaxial with the sliding seat 55 and the rotating wheel 51, ensuring that the support rod 5 is stably upright (as shown). Figure 9 (As shown). Subsequently, the support rod 5 overcomes the torsional force of the torsion spring 71, causing the locking mechanism 7 to flip and disengage, allowing the extension frame 33 to move freely for unloading.

[0054] In the above technology, the mechanical linkage between the support rod 5 and the locking mechanism 7 enables the switching between the two states of "lying down" and "standing up". The rolling of the wheel 51 reduces the resistance during the unloading process, and the lifting of the base frame 31 facilitates the formation of a multi-layer loading space inside the carriage 1. Each layer is set up separately, and targeted unloading can be carried out on different layers.

[0055] As a further embodiment of the present invention, a hook 4 is rotatably provided on the base frame 31, and a first tension spring 41 for maintaining a predetermined angle is provided on the hook 4;

[0056] It also includes a control lever 43 that is slidably mounted on the base frame 31;

[0057] A pull rope 42 is connected to the hook 4, and the pull rope 42 is connected to the control rod 43.

[0058] Specifically, under the combined action of gravity and the first tension spring 41, the hook 4 maintains a specific tilt angle, causing its hook to extend upwards. When the operator lifts the base frame 31, the hook of the hook 4 will contact the one-way latch 21 on the fixing rod 2 (one-way latch 21 can be referenced). Figure 4The triangular structure provided includes an inclined surface of a guide hook 4 and a groove that engages with the hook 4. Under an upward force, the inclined surface of the hook 4 contacts the inclined surface of the one-way latch 21, generating a torque that forces the hook 4 to rotate inward. This torque overcomes the tension of the first tension spring 41, causing the hook 4 to retract inward and thus smoothly slide over the one-way latch 21.

[0059] Throughout the ascent, hook 4 continuously cycles through "collision-retraction-slide," allowing the base frame 31 to be smoothly and unimpededly raised to the required height. After each slide, the first tension spring 41 immediately pulls hook 4 back to its initial preparatory angle.

[0060] Once the base frame 31 is raised to the target height, the operator stops applying force. Under the influence of gravity, the base frame 31 tends to fall. Once it begins to move downwards, the inner side of the hook 4 contacts the groove of the one-way locking piece 21. This causes the hook 4 to firmly lock the one-way locking piece 21, preventing it from rotating towards the center of the base frame 31. When it is necessary to lower the base frame 31, the operator pulls the control lever 43. The control lever 43 pulls the tail of the hook 4 through the pull rope 42, causing it to overcome the tension of the first tension spring 41 and generate a force opposite to the locking moment. This disengages the hook 4 from the one-way locking piece 21, releasing the hook 4 and thus releasing the lock on the base frame 31. At this point, the operator can control the base frame 31 to descend smoothly to the new height. After releasing the control lever 43, the hook 4 returns to its original position under the action of the first tension spring 41, ready for the next cycle.

[0061] As a further embodiment of the present invention, the rotating wheel 51 includes two sets and is respectively disposed at opposite ends of the extension frame 33.

[0062] Specifically, both the first end (near the opening of the carriage 1) and the second end (near the interior of the carriage 1) of the extension frame 33 are equipped with a complete mechanism including a rotating wheel 51, a support rod 5, and a limiting rod 52. The rotating wheel 51 at the first end plays a leading role in the initial stage of the unloading process. When the carriage 32 is pulled and the extension frame 33 is moved outward, the rotating wheel 51 at the first end rolls on the base frame 31 first and interacts with the locking mechanism 7 located near the opening of the carriage 1, completing the switch of the support rod 5 from "lying down" to "vertical", providing stable support for the continued extension of the extension frame 33.

[0063] Subsequently, the user will pull the extension frame 33 individually. At this point, the main body of the extension frame 33 has basically moved out of the carriage 1, and the second end wheel 51 moves to the opening of the carriage 1 and interacts with another locking mechanism 7. At this time, the second limiting part 74 will hook the limiting rod 52 on the wheel 51, so that the extension frame 33 can deflect downward with the second end wheel 51 as the fulcrum, forming a ramp, which greatly promotes the automatic sliding of goods and realizes tipping unloading.

[0064] As a further embodiment of the present invention, a telescopic rod assembly 6 for load transfer is provided on the base frame 31, and the telescopic rod assembly 6 has an inclined state for avoiding the cargo at the bottom.

[0065] Specifically, the telescopic rod assembly 6 includes a rotating rod 63, a telescopic rod 61, and a second spring 62. The rotating rod 63 is rotatably mounted on the base frame 31 via a pivot. The telescopic rod 61 is slidably mounted on the rotating rod 63, and its upper end is hinged to the slide 32. A pressure plate 64 for supporting goods is rotatably connected to the lower end of the rotating rod 63, and the second spring 62 is located between the rotating rod 63 and the telescopic rod 61 (e.g., ...). Figure 12 (As shown). When unloading is performed, the carriage 32 is pulled outward, which pulls the telescopic rod 61 through the hinge point, thereby causing the entire telescopic rod assembly 6 to tilt forward. At this time, the rotating rod 63 rotates around its root, causing the pressure plate 64 at its end to lift upward. This leaves sufficient vertical clearance space for the top of the lower layer of goods. This allows the movable frame assembly 3 of this layer to slide outward without obstruction, without colliding or rubbing against the goods already stacked below. When loading is completed or when it is necessary to push the carriage 32 back into the carriage 1, the carriage 32 moves inward, pushing the telescopic rod assembly 6 to gradually swing back to a near-vertical state. In the vertical state, the pressure plate 64 moves downward under the assistance of gravity and the second spring 62, finally pressing tightly against the upper surface of the lower layer of goods. At this point, the weight of the upper-level cargo (via the carriage 32 and the extension frame 33) is transferred through the following path: carriage 32 - telescopic rod 61 - rotating rod 63 - pressure plate 64 - lower-level cargo. This successfully transfers the weight of all upper-level cargo from the fixed frame of the carriage 1 (fixed rod 2) to the movable frame system itself, and ultimately it is borne by the floor of the carriage 1. This improves the stress condition of the fixed rod 2 and the side walls of the carriage 1, effectively prevents fatigue and deformation of the steel structure caused by long-term heavy loads, and significantly extends the service life of the carriage 1.

[0066] As a further embodiment of the present invention, the extension frame 33 is provided with a conveyor belt 34 for transporting goods, and the conveyor belt 34 is drivenly connected to a driven wheel 343 and a drive wheel 344.

[0067] Specifically, the structures of the drive wheel 344 and the driven wheel 343 are as follows: Figure 10As shown, both the drive wheel 344 and the driven wheel 343 are gear structures and mesh with each other. Multiple sets of rotating rods rotatably support the conveyor belt 34 internally within the extension frame 33. The drive wheel 344 has a square groove that can directly match the square-head output shaft of common manual wrenches (such as ratchet wrenches), electric or pneumatic tools. Once the first end wheel 51 completes the vertical locking of the support rod 5, the extension frame 33 becomes a stable conveying channel. At this time, most of the goods are still inside the carriage 1. During this stage, starting the drive wheel 344 drives the driven wheel 343 through gear meshing, thereby driving the conveyor belt 34. There is no need for manual effort to pull the heavy goods out from the depths of the carriage 1; simply controlling the conveyor belt 34 allows the goods to be transported smoothly and at a uniform speed.

[0068] When the extension frame 33 begins to deflect downwards under the fulcrum of the second end roller 51, forming a ramp, goods with high friction or insufficient weight may not be able to slide smoothly by gravity alone. Maintaining the conveyor belt 34 in this situation provides additional power, assisting and ensuring that all goods are completely conveyed. In certain conditions (such as when goods are fragile or require precise stacking), the tilting function of the second end roller 51 can be avoided. Instead, the entire process relies on the conveyor belt 34, with the extension frame 33 remaining horizontal or at a slight angle, to directly transport the goods to the target location (such as a conveyor belt or platform).

[0069] As a further embodiment of the present invention, the conveyor belt 34 is provided with a plurality of through holes 341, and anti-slip parts 342 are fixedly provided on the edges of the through holes 341.

[0070] Specifically, the anti-slip part 342 can be adopted as follows: Figure 11 The diagram shows an inclined hook structure with the hook opening facing the depth of the carriage 1, or with anti-slip protrusions. When the conveyor belt 34 operates, transporting goods out of the carriage 1, the bottom of the goods will contact these anti-slip parts 342. If the goods tend to slide back into the carriage 1, the tip of the hook will hook onto the bottom surface of the goods or the packaging gap, forming a strong one-way anti-reverse action.

[0071] An integrated unloading transport vehicle method, applied to the aforementioned integrated unloading transport vehicle, includes the following steps:

[0072] Step 1: When unloading is required, pull the slide 32 and the extension frame 33 out of the carriage 1 so that the wheel 51 slides along the base frame 31.

[0073] Step 2: When the limiting rod 52 is blocked by the blocking part 73 of the locking mechanism 7, continue to pull the extension frame 33 so that the support rod 5 deflects to a vertical state with the rotating wheel 51 as the fulcrum.

[0074] Step 3: The support rod 5 continues to move against the resistance of the locking mechanism 7, disengages from the limit of the locking mechanism 7, and pulls the extension frame 33 out of the carriage 1 to transport the goods through the conveyor belt 34.

[0075] Step 4: After unloading, retract the extension frame 33 into the carriage 32;

[0076] Step 5: When the rotating wheel 51 approaches the locking mechanism 7, the first limiting part 72 causes the limiting rod 52 to be stuck, and the support rod 5 deflects to release the vertical state and return to the folded state.

[0077] Furthermore, in step three, when the extension frame 33 moves to the point where the second end roller 51 contacts the locking mechanism 7, the second limiting part 74 hooks onto the limiting rod 52, causing the extension frame 33 to deflect downwards around the second end roller 51 as a fulcrum to form an unloading ramp. At the same time, the conveyor belt 34 continues to operate to assist the goods in sliding down.

[0078] Working principle: Multiple sets of movable frame assemblies 3 are installed inside the carriage 1. Each set of movable frame assemblies 3 is vertically positioned by a one-way clamp 21 on the fixed rod 2. Initially, the support rod 5 is in a collapsed state (e.g., Figure 6 As shown, its side abuts against the base frame 31, while the end face of the rotating wheel 51 abuts against the fixed seat 54 on the extension frame 33, forming a mechanical lock to prevent the rotating wheel 51 from rotating accidentally. The limiting rod 52 cooperates with the blocking part 73 of the locking mechanism 7. The blocking part 73 is located on the moving path of the limiting rod 52, effectively preventing the extension frame 33 from slipping.

[0079] The height of the movable frame assembly 3 is then adjusted via the hook 4 on the base frame 31. Under the action of the first tension spring 41, the hook 4 maintains an upward tilt angle. When the base frame 31 is lifted upward, the inclined surface of the hook 4 contacts the inclined surface of the one-way locking piece 21 on the fixed rod 2, forcing the hook 4 to rotate inward and retract, smoothly sliding past the locking piece; after reaching the target height, as the base frame 31 falls due to gravity, the hook 4 engages with the groove of the one-way locking piece 21, achieving locking. When it is necessary to lower, pull the control lever 43, and pull the tail of the hook 4 through the pull rope 42 to disengage it from the locking piece, allowing the base frame 31 to descend.

[0080] During loading, the goods are loaded in layers on the movable frame assembly 3. Due to the collapse of the support rod 5, the movable frame assembly 3 occupies little space, forming a multi-layered transverse loading space inside the carriage 1. During loading, the slide 32 and the extension frame 33 remain in the retracted state, and the conveyor belt 34 is not activated. After loading is completed, the slide 32 is moved inward, pushing the telescopic rod assembly 6 to gradually swing back to a near-vertical state. In the vertical state, the pressure plate 64 moves downward under the assistance of gravity and the second spring 62, finally pressing tightly against the upper surface of the lower layer of goods. At this time, the weight of the upper layer of goods (through the slide 32 and the extension frame 33) is transferred through the following path: slide 32 - telescopic rod 61 - rotating rod 63 - pressure plate 64 - lower layer of goods.

[0081] During unloading, the operator manually or hydraulically pulls the slide 32 outward, and the slide 32 drives the extension frame 33 to extend synchronously through the end baffle. The roller 51 rolls on the base frame 31. When the limit rod 52 contacts the blocking part 73 of the locking mechanism 7, the extension frame 33 continues to move, and the support rod 5 deflects around the roller 51 as a fulcrum. The sliding seat 55 rises to the high position against the force of the first spring 56, and the limit rod 52 abuts against the locking groove 57 of the fixed seat 54 to lock. The second tension spring 53 provides a restoring force to ensure that the support rod 5 is stably upright (as shown). Figure 9 (As shown). After the support rod 5 is upright, it overcomes the force of the torsion spring 71 and drives the locking mechanism 7 to flip, the blocking part 73 disengages from the path of the limit rod 52, and the extension frame 33 can move freely.

[0082] The first end (near the opening of carriage 1) of the rotating wheel 51 completes the above-mentioned switching, making the support rod 5 vertical; then the operator pulls the extension frame 33 alone, and the second end (near the interior of carriage 1) of the rotating wheel 51 moves to the opening of carriage 1, interacting with another locking mechanism 7. When the second end of the rotating wheel 51 engages with the locking mechanism 7, the second limiting part 74 hooks the limiting rod 52, and the extension frame 33 deflects downward with the second end of the rotating wheel 51 as the fulcrum, forming a ramp. The goods slide down by gravity or with the assistance of the conveyor belt, achieving rapid unloading.

[0083] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the present invention.

Claims

1. An integrated unloading transport vehicle, comprising a vehicle body (1), characterized in that, It also includes a fixing rod (2) fixedly installed inside the carriage (1), and the fixing rod (2) is provided with a one-way clamp (21) for providing vertical positioning. A movable frame assembly (3) is slidably mounted on a fixed rod (2). The movable frame assembly (3) includes a base frame (31), a slide (32), and an extension frame (33). The slide (32) is slidably mounted on the base frame (31), and the extension frame (33) is slidably mounted on the slide (32). The extension frame (33) is provided with a support rod (5), and the bottom end of the support rod (5) is provided with a roller (51) for rolling on the base frame (31), and the roller (51) is provided with a limit rod (52). It also includes a locking mechanism (7) that is rotatably mounted on the base frame (31); The support rod (5) has two states: lying down and vertical. The state switching is achieved by the cooperation of the rotating wheel (51) and the locking mechanism (7). The locking mechanism (7) includes a first limiting part (72) for limiting, a second limiting part (74) for unloading, and a blocking part (73) for blocking. The base frame (31) is rotatably provided with a hook (4), and the hook (4) is provided with a first tension spring (41) for maintaining a predetermined angle. It also includes a control lever (43) that is slidably mounted on the base frame (31). A pull rope (42) is connected to the hook (4), and the pull rope (42) is connected to the control rod (43); The extension frame (33) is provided with a fixed seat (54), and the top of the support rod (5) is rotatably connected to a sliding seat (55). The sliding seat (55) is slidably connected to the fixed seat (54) and has a high position and a low position in the vertical direction. The sliding seat (55) can switch between states when the support rod (5) is switched. The rotating wheel (51) comprises two sets and is respectively disposed at opposite ends of the extension frame (33); The base frame (31) is provided with a telescopic rod assembly (6) for load transfer, and the telescopic rod assembly (6) has an inclined state for avoiding the cargo at the bottom.

2. The integrated unloading transport carriage according to claim 1, characterized in that, The telescopic rod assembly (6) includes a rotating rod (63), a telescopic rod (61), and a second spring (62). The rotating rod (63) is rotatably mounted on the base frame (31), and the telescopic rod (61) is slidably mounted on the rotating rod (63) and connected to the slide (32). The end of the rotating rod (63) is connected to a pressure plate (64) for supporting the cargo.

3. The integrated unloading transport carriage according to claim 2, characterized in that, The extension frame (33) is provided with a conveyor belt (34) for transporting goods, and the conveyor belt (34) is connected to a driven wheel (343) and a drive wheel (344).

4. The integrated unloading transport carriage according to claim 3, characterized in that, The conveyor belt (34) has multiple through holes (341), and anti-slip parts (342) are fixedly provided on the edge of the through holes (341).

5. An integrated unloading transport vehicle method, applied to the integrated unloading transport vehicle described in claim 4, characterized in that, Includes the following steps: Step 1: When unloading is required, pull the carriage (32) and the extension frame (33) out of the carriage so that the wheel (51) slides along the base frame (31); Step 2: When the limiting rod (52) is blocked by the blocking part (73) of the locking mechanism (7), continue to pull the extension frame (33) so that the support rod (5) deflects to the vertical state with the wheel (51) as the fulcrum; Step 3: The support rod (5) continues to move against the resistance of the locking mechanism (7), breaks away from the limit of the locking mechanism (7), and pulls the extension frame (33) out of the carriage to transport the goods through the conveyor belt (34); Step 4: After unloading, retract the extension rack (33) into the carriage (32); Step 5: When the rotating wheel (51) approaches the locking mechanism (7), the limiting rod (52) is stopped by the first limiting part (72), and the support rod (5) deflects to release the vertical state and return to the lying state.

6. The integrated unloading transport vehicle method according to claim 5, characterized in that, In step three, when the extension frame (33) moves to the point where the second end wheel (51) contacts the locking mechanism (7), the second limiting part (74) hooks the limiting rod (52), causing the extension frame (33) to deflect downwards with the second end wheel (51) as the fulcrum to form an unloading ramp, while the conveyor belt (34) continues to run to assist the goods to slide down.

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