An adaptive grade loading and unloading device

Abstract

This invention relates to the field of power emergency repair technology and discloses an adaptive slope loading and unloading device, comprising: a support base, wherein the support base is provided with a support frame and a movable frame, the bottom end of the support frame is fixedly connected to the support base, and the bottom end of the movable frame is hinged to the support base; a frame, wherein the outer side of the frame is provided with a first slide rail, the inner side of the frame is provided with a second slide rail and a slide rod slidably disposed on the second slide rail, the top end of the movable frame is hinged to the slide rod, and the top end of the support frame is hinged to the frame; a telescopic frame, wherein the telescopic frame is slidably disposed on the first slide rail, and the telescopic frame extends and retracts along the extension direction of the first slide rail; a trolley, wherein the bottom of the trolley is provided with wheels, and the trolley is mounted on the top surface of the telescopic frame; and an electric push rod. This invention achieves dynamic matching of the transport angle through the movable frame, improving adaptability to complex terrain and different parking postures, and effectively reducing bumps during loading and unloading.

Description

Technical Field

[0001] This invention relates to the technical field of power emergency repair, and in particular to an adaptive slope loading and unloading device. Background Technology

[0002] In fields such as communication support, power restoration, and emergency rescue, it is often necessary to quickly load large and heavy equipment such as oscillating wave equipment, power generation equipment, and communication equipment into repair vehicles or transport vehicles to meet the needs of field operations and emergency rescue missions. Because these devices are generally heavy, large in size, and have a high center of gravity, high requirements are placed on the stability, safety, and adaptability to complex working conditions during loading and unloading.

[0003] Currently, the industry typically uses forklifts, hydraulic lifting platform trucks, or loading / unloading platforms with sliding rails for equipment loading and unloading. Existing loading / unloading devices generally include a lifting frame, high-strength sliding rails, a trolley-mounted platform, and fixed tooling. Their working principle is usually as follows: the lifting mechanism raises the platform to approximately the same height as the truck bed, and then the sliding rails push the equipment into the truck bed, thus achieving the transfer of heavy equipment. However, existing loading / unloading devices are mainly suitable for standard working conditions where the ground is flat and the vehicle's posture is stable. They still have significant limitations in non-standard working conditions such as communication repair, power emergency response, or field rescue. Because the parking locations for repair vehicles often have uneven ground, large slope variations, and tilted parking postures, it is difficult to maintain consistent tilt angles between the transport surface of the loading / unloading device and the bottom of the repair vehicle's cargo bed.

[0004] Especially when the height of the lifting platform and the bottom of the truck bed cannot be precisely matched, the front wheels of the trolley transporting heavy equipment are prone to tilting due to changes in the tilt between the surfaces. Uneven force on the front of the trolley can cause it to lift up, resulting in momentary tilting or swaying of the entire structure. On the one hand, this can cause the transported heavy equipment to get stuck at the truck bed entrance, reducing loading and unloading efficiency; on the other hand, the transported heavy equipment is prone to bumping, slipping, or even tipping over under unstable force, posing significant safety hazards and potentially causing equipment damage and personal injury. Furthermore, most existing loading and unloading equipment only has simple lifting functions, making it difficult to adapt to complex road conditions and loading and unloading needs under different vehicle postures. Summary of the Invention

[0005] The technical problem to be solved by this invention is: to solve the problem of the difficulty in smoothly transporting equipment into the carriage when loading and unloading equipment in complex road conditions.

[0006] To address the aforementioned technical problems, this invention provides an adaptive slope loading and unloading device, comprising: a support base, wherein the support base is provided with a support frame and a movable frame, the bottom end of the support frame is fixedly connected to the support base, and the bottom end of the movable frame is hinged to the support base; a frame, wherein the outer side of the frame is provided with a first slide rail, the inner side of the frame is provided with a second slide rail and a slide rod slidably disposed on the second slide rail, the top end of the movable frame is hinged to the slide rod, and the top end of the support frame is hinged to the frame; a telescopic frame, wherein the telescopic frame is slidably disposed on the first slide rail, and the telescopic frame extends and retracts along the extension direction of the first slide rail; a trolley, wherein the trolley is provided with wheels at its bottom, and the trolley rests on the top surface of the telescopic frame; and an electric push rod, wherein the first end of the electric push rod is hinged to the support base or the support frame, and the second end of the electric push rod is hinged to the movable frame, the electric push rod being used to push the movable frame to move along the second slide rail, thereby changing the inclination of the frame.

[0007] Furthermore, the telescopic frame includes a first telescopic section and a second telescopic section. The first telescopic section is slidably disposed on the first slide rail and is provided with a guide rail extending along the length direction of the first slide rail. The second telescopic section is slidably disposed on the guide rail. The trolley is mounted on the second telescopic section, and the wheels are located on the outside of the second telescopic section.

[0008] Furthermore, both the first telescopic section and the second telescopic section are provided with a pivot and a pulley rotatably mounted on the pivot at their top. The pivot is perpendicular to the first slide rail, and the pulley abuts against the bottom of the trolley.

[0009] Furthermore, the frame is provided with a limiting member, and when the first telescopic section slides along the first slide rail to the maximum distance, the limiting member abuts against the first telescopic section.

[0010] Furthermore, the first slide rail is provided with a slide groove, the first telescopic section is slidably disposed on the slide groove, and a baffle is provided at the end of the slide groove away from the second telescopic section.

[0011] Furthermore, the trolley is equipped with a travel control box and handrails on both sides of the travel control box, with the travel control box located at the end of the trolley closest to the first slide rail.

[0012] Furthermore, the trolley is equipped with two handles on its top surface, which are located on both sides of the walking control box.

[0013] Furthermore, the top surface of the trolley is provided with multiple limiting grooves, which are arranged circumferentially.

[0014] Furthermore, the electric push rod is mounted on the support frame, and there are four limiting slots, with adjacent limiting slots perpendicular to each other.

[0015] Furthermore, there are two first slide rails, which are arranged opposite to each other, and the two ends of the slide rod are respectively slidably arranged on the two first slide rails.

[0016] Compared with existing technologies, the adaptive slope loading and unloading device of this invention has the following advantages: By having an electric push rod push the moving frame, the moving frame moves along the second slide rail using a sliding rod. During movement, the moving frame rotates relative to the support base and its height changes. Since the top height of the support frame, fixed on the support base, remains stable, while the top height of the moving frame can dynamically change, the overall tilt angle of the frame changes. Therefore, the frame can adaptively adjust the angle of the transport surface according to the posture of the repair vehicle's cargo box, ensuring that the transport surface of the trolley is consistent with the bottom surface of the cargo box. This effectively avoids problems such as the trolley's front wheels hitting the cargo box threshold, the trolley tilting, and the trolley wheels getting stuck due to inconsistent tilt during traditional loading and unloading processes. The telescopic frame is slidably set on the second slide rail. On a single rail, the telescopic frame can extend further into the carriage along the tilted direction, allowing the trolley and its loaded heavy equipment to enter the carriage along a continuous and smooth transport path. Moreover, when the frame tilt is adjusted, the extended telescopic frame helps to align with the carriage transport surface and provides guidance for tilt adjustment. The movable frame is responsible for dynamically matching the transport angle, while the telescopic frame is responsible for tilt adjustment guidance and extension of the tilted transport path. The two work together to improve the adaptability of the adaptive slope loading and unloading device to complex ground conditions and different parking postures. It can also effectively reduce the risks of impact, bumps and rollover during equipment loading and unloading, and improve the stability, safety and efficiency of loading and unloading heavy equipment such as oscillating wave equipment. Attached Figure Description

[0017] Figure 1 This is a first perspective view of the adaptive slope loading and unloading device provided by the present invention; Figure 2 This is a left view of the adaptive slope loading and unloading device provided by the present invention; Figure 3 This is a perspective view of the frame and telescopic frame of the adaptive slope loading and unloading device provided by the present invention; Figure 4 This is a second perspective view of the adaptive slope loading and unloading device provided by the present invention; Figure 5 yes Figure 4 A magnified view of a portion of the image; Figure 6 This is a schematic diagram of the trolley and oscillating wave device of the adaptive slope loading and unloading device provided by the present invention; Figure 7 This is a schematic diagram of the tilt adjustment of the adaptive slope loading and unloading device provided by the present invention.

[0018] The correspondence between the reference numerals and the component names is as follows: 1. Support base; 11. Support frame; 12. Movable frame; 2. Frame; 21. First slide rail; 22. Second slide rail; 23. Slide rod; 24. Limiting component; 25. Baffle; 201. Slide groove; 3. Telescopic frame; 31. First telescopic section; 311. Guide rail; 32. Second telescopic section; 33. Pulley; 4. Trolley; 41. Walking electric control box; 42. Handrail; 43. Handle; 44. Wheel; 401. Limiting groove; 5. Electric push rod; 6. Oscillating wave device. Detailed Implementation

[0019] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention, including various details to aid understanding. These details should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope of the invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0020] like Figures 1 to 7 As shown, this embodiment of the invention discloses an adaptive slope loading and unloading device, comprising: a support base 1, the support base 1 having a support frame 11 and a movable frame 12; a frame 2, the outer side of the frame 2 having a first slide rail 21, the inner side of the frame 2 having a second slide rail 22 and a slide rod 23 slidably disposed on the second slide rail 22, the top end of the support frame 11 being hinged to the frame 2, the bottom end of the support frame 11 being fixedly connected to the support base 1, and the two ends of the movable frame 12 being hinged to the slide rod 23 and the support base 1 respectively; a telescopic frame 3, the telescopic frame 3 being slidably disposed on the first slide rail 21, and the telescopic frame 3 extending and retracting along the extension direction of the first slide rail 21; a trolley 4, the bottom of the trolley 4 having wheels 44, and the trolley 4 being mounted on the top surface of the telescopic frame 3; and an electric push rod 5, the electric push rod 5 being used to push the movable frame 12 to move along the second slide rail 22, thereby changing the inclination of the frame 2.

[0021] The adaptive slope loading and unloading device of this application uses an electric push rod 5 to push a movable frame 12. The movable frame 12 moves along the second slide rail 22 using a slide rod 23, causing the movable frame 12 to rotate relative to the support base 1 during movement. Since the top height of the support frame 11, which is fixed on the support base 1, remains stable, while the top height of the movable frame 12 can change dynamically, the overall tilt angle of the frame 2 changes. Therefore, the frame 2 can adaptively adjust the angle of the transport surface according to the posture of the repair vehicle, so that the transport surface of the trolley 4 is consistent with the bottom surface of the vehicle, effectively avoiding the problems of the front wheel of the trolley 4 hitting the door sill, the trolley 4 tilting, and the wheels 44 of the trolley 4 getting stuck due to inconsistent tilt during traditional loading and unloading processes; the telescopic frame 3 is slidably mounted on the first slide rail. On 21, the telescopic frame 3 can extend further into the carriage along the tilted direction, allowing the trolley 4 and the heavy equipment it carries to enter the carriage along a continuous and smooth transport path. Moreover, when the tilt of the frame 2 is adjusted, the extended telescopic frame 3 helps to align with the carriage transport surface and provides guidance for the tilt adjustment of the frame 2. The moving frame 12 is responsible for achieving dynamic matching of the transport angle, while the telescopic frame 3 is responsible for achieving tilt adjustment guidance and extension of the tilted transport path. The two work together to not only improve the adaptability of the adaptive slope loading and unloading device to complex ground and different parking postures, but also effectively reduce the impact, bumps and rollover risks of the oscillating wave equipment 6 during loading and unloading, and improve the stability, safety and efficiency of heavy equipment loading and unloading.

[0022] Specifically, the telescopic frame 3 is equipped with locking components to control the degree of telescopic extension and retraction. The frame 2 is equipped with a lifting control box to control the degree of pushing of the electric push rod 5, thereby controlling the tilt of the frame 2. The trolley 4 is equipped with stoppers to control the rotation of the wheels 44, thus ensuring the trolley 4 is stably mounted on the telescopic frame 3. The support base 1 has a lifting frame at its bottom to control the height changes of the support base 1.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, in an optional embodiment of the present invention, the telescopic frame 3 includes a first telescopic section 31 and a second telescopic section 32. The first telescopic section 31 is slidably disposed on a first slide rail 21 and is provided with a guide rail 311 extending along the length direction of the first slide rail 21. The second telescopic section 32 is slidably disposed on the guide rail 311. The trolley 4 is mounted on the second telescopic section 32 and the wheels 44 are located outside the second telescopic section 32.

[0024] By configuring the telescopic frame 3 into a first telescopic section 31 and a second telescopic section 32 that cooperate with each other, the first telescopic section 31 can extend and retract along the first slide rail 21 on the outside of the frame 2, while the second telescopic section 32 can extend and retract along the guide rail 311 on the first telescopic section 31, thus forming a multi-stage extension structure. The moving frame 12, driven by the electric push rod 5, tilts the frame 2 as a whole, ensuring that the tilt angle of the adaptive slope loading and unloading device's transport surface is consistent with the bottom surface of the repair vehicle's cargo compartment. The first telescopic section 31 extends towards the cargo compartment on the tilted frame 2, enabling forward expansion of the overall transport path. The second telescopic section 32 further extends along the guide rail 311 into the cargo compartment, allowing the trolley 4 to enter the cargo compartment more deeply and smoothly. Due to the second telescopic section... Section 32 directly provides load-bearing and guiding support for the trolley 4 and wheels 44. Therefore, when the frame 2 is tilted, it can continuously restrict the movement direction of the wheels 44 of the trolley 4, preventing the trolley 4 from deviating, jumping, or leaving the transport path due to tilted transport. At the same time, the first telescopic section 31 is responsible for establishing transition support between the trolley and the carriage, and the second telescopic section 32 is responsible for fine guidance and deep transport. The two work together with the moving frame 12 to ensure that the adaptive slope loading and unloading device can maintain a continuous and stable transport channel after completing the adaptive adjustment of the tilt angle. This not only improves the loading and unloading distance and adaptability under complex working conditions, but also effectively reduces the risk of impact, shaking, and tipping of heavy equipment during loading and unloading, further improving the stability, safety, and operational efficiency of heavy equipment loading and unloading.

[0025] like Figure 1 and Figure 2 As shown, in an optional embodiment of the present invention, the top of the first telescopic section 31 and the second telescopic section 32 are both provided with a rotating shaft and a pulley 33 rotatably mounted on the rotating shaft. The rotating shaft is perpendicular to the first slide rail 21, and the pulley 33 abuts against the bottom of the trolley 4.

[0026] By installing rotating shafts and rotatable pulleys 33 on the top of both the first telescopic section 31 and the second telescopic section 32, and ensuring that the pulleys 33 abut against the bottom of the trolley 4, the trolley 4's movement along the telescopic frame 3 is transformed from traditional surface contact sliding to rolling contact transmission. This effectively reduces the frictional resistance between the trolley 4 and the telescopic frame 3, minimizing pushing resistance and structural wear during the loading and unloading of heavy equipment. Simultaneously, because the rotating shafts are perpendicular to the first slide rail 21, the rolling direction of the pulleys 33 is consistent with the moving direction of the trolley 4, providing stable and continuous guiding support for the trolley 4 and preventing deviation, jamming, or swaying during tilted transport. Furthermore, when the moving frame 12 tilts the frame 2 to match the angle of the repair vehicle's cargo box, the first telescopic section... 31 and the second telescopic section 32 extend into the carriage in an inclined state. The pulley 33 can continuously roll and support the bottom of the trolley 4 on the inclined transport path, so that the trolley 4 maintains a stable movement during the process of entering the carriage, reducing the impact and jerking caused by changes in the weight component. Among them, the moving frame 12 is responsible for realizing the adaptive adjustment of the tilt of the transport surface, the telescopic frame 3 is responsible for establishing the extended transport channel in the inclined state, and the pulley 33 further improves the rolling stability and guidance of the trolley 4 in the inclined transport channel. The three work together to not only improve the adaptability of the adaptive slope loading and unloading device to complex working conditions, but also effectively reduce the risk of bumps, overturning and jamming during the loading and unloading of heavy equipment, and further improve the safety, stability and efficiency of loading and unloading operations.

[0027] like Figure 1 and Figure 3 As shown, in an optional embodiment of the present invention, the frame 2 is provided with a limiting member 24. When the first telescopic section 31 slides along the first slide rail 21 to the maximum distance, the limiting member 24 abuts against the first telescopic section 31.

[0028] By setting a limiting member 24 on the frame 2, and ensuring that the first telescopic section 31 abuts against the limiting member 24 when sliding along the first slide rail 21 to its maximum extension distance, the maximum extension stroke of the first telescopic section 31 can be limited. This prevents the first telescopic section 31 from detaching from the first slide rail 21 or causing structural instability due to excessive extension during its extension into the carriage. Simultaneously, after the moving frame 12 causes the frame 2 to tilt, the first telescopic section 31 is typically in a cantilevered state. The weight of heavy equipment and the trolley 4 will exert a significant forward tilting load on the telescopic frame 3. The limiting member 24, after abutting against the first telescopic section 31, provides reliable end support and reverse limiting for the first telescopic section 31, preventing it from extending further. Even at its maximum extension, the telescopic frame 3 maintains stable force, reducing swaying, sinking, or displacement caused by inertial impact or heavy load. Furthermore, the limiting member 24 can also work synergistically with the movable frame 12 to provide stable constraint on the first telescopic section 31 in the tilted state when the tilt angle of the frame 2 changes. This ensures that the telescopic frame 3 maintains stable cooperation with the frame 2 during tilted transport, thereby guaranteeing that the trolley 4 and heavy equipment can smoothly enter or exit the carriage along a stable and continuous transport path. Therefore, the movable frame 12 is responsible for dynamically adjusting the transport angle, the telescopic frame 3 is responsible for establishing the extended transport channel, and the limiting member 24 is responsible for providing stable constraint on the extreme positions of the telescopic frame 3.

[0029] like Figure 1 , Figure 3 and Figure 7 As shown, in an optional embodiment of the present invention, the first slide rail 21 is provided with a slide groove 201, the first telescopic section 31 is slidably disposed on the slide groove 201, and a baffle 25 is provided at the end of the slide groove 201 away from the second telescopic section 32.

[0030] By setting a groove 201 on the first slide rail 21 and sliding the first telescopic section 31 within the groove 201, the first telescopic section 31 can move stably along a preset trajectory during telescopic movement, thereby improving the guiding accuracy and structural stability of the telescopic motion and avoiding the problems of swaying, jamming, or derailment that are prone to occur in traditional external sliding structures under heavy loads. At the same time, the groove 201 structure can form a covering and limiting support for the first telescopic section 31, so that when the first telescopic section 31 carries the trolley 4 and heavy equipment, it can effectively disperse the lateral loads and impact forces generated during tilting transportation, improving the overall anti-sway capability. Furthermore, in the first slide rail 21 A baffle 25 is provided at the end away from the second telescopic section 32. When the first telescopic section 31 retracts to its limit position, the baffle 25 can block the end of the first telescopic section 31, preventing the first telescopic section 31 from detaching from the chute 201 due to inertia or misoperation, thus improving the safety of the adaptive slope loading and unloading device. Furthermore, after the moving frame 12 drives the frame 2 to adjust the tilt angle, the chute 201 and the baffle 25 can jointly form a stable guide and limit constraint for the first telescopic section 31 in the tilted state, so that the first telescopic section 31 can still maintain smooth extension and contraction during the tilted transportation process, thereby jointly constructing a stable and continuous tilted transportation channel with the second telescopic section 32.

[0031] like Figure 1 and Figure 6 As shown, in an optional embodiment of the present invention, the trolley 4 is provided with a travel control box 41 and handrails 42 disposed on both sides of the travel control box 41. The travel control box 41 is located on one end of the trolley 4 near the first slide rail 21.

[0032] By installing a travel control box 41 on the trolley 4 and placing the control box 41 at the end of the trolley 4 near the first slide rail 21, operators can control the movement of the trolley 4 in real time from the side of the adaptive slope loading and unloading device during loading and unloading. This facilitates timely adjustment of the trolley 4's moving speed and movement status based on its relative position to the telescopic frame 3 and the carriage, improving the control precision and operational stability during the loading and unloading of heavy equipment. Simultaneously, handrails 42 are installed on both sides of the travel control box 41, providing operators with lateral support and posture correction when controlling the trolley 4's movement. Especially when the moving frame 12 drives the frame 2 into an inclined transport state, the handrails 42 assist operators in balancing the trolley 4, reducing the risk of deviation, swaying, or tilting during inclined transport. Because the travel control box 41 is located at one end close to the first slide rail 21, the operator can always be in a rear control position during the process of the trolley 4 entering the telescopic frame 3 and the carriage, thereby avoiding personnel entering the narrow carriage for pushing operations and improving safety during loading and unloading. In addition, the travel control box 41 and the handrail 42 can work together with the moving frame 12 and the telescopic frame 3. After the moving frame 12 completes the adaptive adjustment of the transport angle and the telescopic frame 3 forms an inclined extended transport channel, the operator can use the handrail 42 and the travel control box 41 to stably guide and dynamically control the trolley 4, so that the trolley 4 and heavy equipment can smoothly enter the carriage along the inclined transport path, thereby effectively reducing the risk of impact, jamming and tipping during the loading and unloading of equipment, and further improving the safety, stability and work efficiency of loading and unloading heavy equipment under complex working conditions.

[0033] like Figure 1 and Figure 6 As shown, in an optional embodiment of the present invention, the top surface of the trolley 4 is provided with two handles 43, which are located on both sides of the walking electric control box 41.

[0034] By installing two handles 43 on the top surface of the trolley 4 and placing the two handles 43 on both sides of the travel control box 41, a stable double-sided force support can be formed for the trolley 4 from both sides, which facilitates real-time adjustment of the movement direction and posture of the trolley 4 during the loading and unloading of heavy equipment. Especially after the moving frame 12 drives the frame 2 to form an inclined transport state, the trolley 4 is easily affected by the component of gravity and inertia when it enters the carriage along the telescopic frame 3. The two handles 43 can assist the operator in balancing and correcting the direction of the trolley 4, reducing the risk of the trolley 4 deviating, swaying or tilting.

[0035] like Figure 1 and Figure 6 As shown, in an optional embodiment of the present invention, the top surface of the trolley 4 is provided with a plurality of limiting grooves 401, which are arranged circumferentially.

[0036] By setting multiple circumferentially distributed limiting grooves 401 on the top surface of the trolley 4, the heavy equipment such as the oscillating wave device 6 being transported can cooperate with the corresponding limiting grooves 401 according to its bottom structure or installation position, thereby providing multi-directional limiting support for the equipment and preventing slippage or displacement during transportation. At the same time, the multiple limiting grooves 401 are arranged circumferentially, and the limiting area can be flexibly selected according to the force position of equipment of different specifications and shapes, improving the adaptability and fixing stability of the trolley 4 to various heavy equipment. Especially after the moving frame 12 drives the frame 2 to form an inclined transportation state, the equipment will be subjected to the gravitational component force generated along the inclined direction, and the multiple limiting grooves 401 can form circumferential constraints on the equipment, effectively resisting the force. The forward and backward sliding and lateral offset of the equipment during inclined transport reduce the risk of shaking or overturning due to inertial impact. Furthermore, as the telescopic frame 3 extends into the carriage along the inclined direction, multiple limiting grooves 401 can cooperate with the telescopic frame 3 to form a stable and continuous load-bearing transport state, ensuring that the equipment maintains a stable posture during the movement of the trolley 4. Therefore, the limiting grooves 401, the tilt adjustment function of the moving frame 12, and the extension transport function of the telescopic frame 3 work together to not only improve the adaptability of the adaptive slope loading and unloading device to complex working conditions and different equipment types, but also effectively improve the fixation stability and transport safety of heavy equipment during loading and unloading, further reducing the risk of equipment slippage, collision, and overturning.

[0037] Specifically, there are four limiting slots 401, with two adjacent limiting slots 401 perpendicular to each other, which makes it more suitable for the four-wheel driven oscillating wave device for limiting.

[0038] like Figure 1 and Figure 3 As shown, in an optional embodiment of the present invention, there are two first slide rails 21, which are arranged opposite to each other, and the two ends of the slide rod 23 are respectively slidably arranged on the two first slide rails 21.

[0039] By setting two first slide rails 21 opposite to each other, and sliding the two ends of the slide rod 23 onto the two first slide rails 21 respectively, the slide rod 23 can be simultaneously guided and supported by the two slide rails during movement. This improves the balance and guiding stability of the slide rod 23 during movement, avoiding the swaying, tilting, or jamming problems that easily occur in single-sided guide structures under heavy load conditions. At the same time, the double first slide rails 21 can form a more uniform force support for the frame 2, making the force on both sides of the frame 2 more stable when the moving frame 12 drives the frame 2 to adjust the tilt angle, which helps to improve the operation. The stability and precision of the tilt adjustment process are improved. Furthermore, since the two ends of the slide rod 23 slide synchronously on the two first slide rails 21, the driving force output by the electric push rod 5 can be transmitted more evenly to the moving frame 12, reducing the risk of localized stress concentration and structural torsion during the tilting process of the frame 2. Moreover, after the frame 2 completes the tilt adjustment, the two first slide rails 21 can also provide bilateral stable guidance for the telescopic frame 3, ensuring that the telescopic frame 3 maintains a stable posture as it extends into the carriage, thereby guaranteeing the stable movement of the trolley 4 and heavy equipment along a continuous and smooth tilting transport path. Specifically, guide wheels are provided at both ends of the slide rod 23.

[0040] The adaptive slope loading and unloading device provided in this application is used for loading, unloading, and transporting communication equipment, power emergency repair equipment, shock wave equipment, or other heavy equipment, and is particularly suitable for field emergency repair conditions where the ground is uneven and the vehicle is parked at an incline. The adaptive slope loading and unloading device includes a support base 1, which provides bottom support for the entire device. A support frame 11 and a movable frame 12 are mounted on the support base 1. The support frame 11 is fixedly mounted on the support base 1, while the movable frame 12 can rotate relative to the support base 1. A frame 2 is mounted above the support base 1, forming the main support structure for equipment transport. A first slide rail 21 is mounted on the outer side of the frame 2, and a second slide rail 22 is mounted on the inner side of the frame 2. A sliding rod 23 is slidably mounted on the second slide rail 22. The top of the support frame 11 is hinged to the frame 2, one end of the movable frame 12 is hinged to the sliding rod 23, and the other end of the movable frame 12 is hinged to the support base 1, allowing the movable frame 12 to tilt the frame 2 as the sliding rod 23 moves. The adaptive slope loading and unloading device also includes an electric push rod 5, which is mounted on the support frame 11. The output end of the electric push rod 5 is connected to the slide rod 23. During operation, the electric push rod 5 extends and retracts to drive the slide rod 23 to move along the second slide rail 22. Since the moving frame 12 is hinged to both the slide rod 23 and the support seat 1, the moving frame 12 rotates relative to the support seat 1 during the movement of the slide rod 23, causing the overall tilt angle of the frame 2 to change. Because the support frame 11 is fixed, its top height remains relatively stable, while the top height of the moving frame 12 can change dynamically. Therefore, a height difference is formed on both sides of the frame 2, allowing the transport surface of the frame 2 to adaptively adjust according to the actual tilt state of the repair vehicle's cargo compartment, thus ensuring that the transport surface of the frame 2 is consistent with the bottom surface of the cargo compartment. A telescopic frame 3 is slidably mounted on the first slide rail 21 on the outer side of the frame 2. The telescopic frame 3 can extend and retract along the length of the first slide rail 21. A trolley 4 is mounted on the top surface of the telescopic frame 3, and wheels 44 are installed at the bottom of the trolley 4. After the tilt angle of frame 2 is adjusted, the telescopic frame 3 extends into the interior of the repair vehicle along the tilt direction, thereby forming a continuous transition transport channel between the adaptive slope loading and unloading device and the vehicle. The trolley 4 then enters the interior of the vehicle along the telescopic frame 3 to realize the transport and unloading of heavy equipment.

[0041] In practical use, the adaptive slope loading and unloading device is first moved to the rear of the repair vehicle, and the electric push rod 5 is activated according to the tilt posture of the repair vehicle's cargo compartment. The electric push rod 5 pushes the slide rod 23 to move along the second slide rail 22, causing the moving frame 12 to rotate and drive the frame 2 to tilt as a whole, thereby aligning the transport direction of the telescopic frame 3 with the direction of the cargo compartment's bottom surface. Subsequently, the telescopic frame 3 extends into the cargo compartment, and the trolley 4 moves smoothly along the telescopic frame 3 under the action of the wheels 44, finally transporting the heavy equipment into the cargo compartment. Since the moving frame 12 can drive the frame 2 to tilt and adjust, and the telescopic frame 3 can continue to extend into the cargo compartment while tilted and can also provide guidance for the frame 2 to align with the tilt, the two work together to enable the adaptive slope loading and unloading device to not only adapt to different ground slopes and vehicle parking postures, but also ensure the stable guidance of the trolley 4 during tilted transport, effectively avoiding problems such as the trolley 4's front wheels hitting the cargo compartment threshold, the front end of the device tilting up, and equipment shaking, jamming, or tipping over, thereby improving the safety, stability, and operational efficiency of the heavy equipment loading and unloading process.

[0042] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0043] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the principles of this invention should be included within the scope of protection of this invention.

Claims

1. An adaptive slope loading and unloading device, characterized in that, include: The support base is provided with a support frame and a movable frame. The bottom end of the support frame is fixedly connected to the support base, and the bottom end of the movable frame is hinged to the support base. The frame has a first slide rail on its outer side, a second slide rail and a slide rod slidably mounted on the second slide rail on its inner side, the top of the movable frame is hinged to the slide rod, and the top of the support frame is hinged to the frame. A telescopic frame, which is slidably mounted on a first slide rail and extends and retracts along the extension direction of the first slide rail; A trolley, the trolley being equipped with wheels at the bottom, and the trolley being mounted on the top surface of the telescopic frame; An electric push rod is provided, with its first end hinged to the support base or the support frame, and its second end hinged to the movable frame. The electric push rod is used to push the movable frame to move along the second slide rail, thereby changing the inclination of the frame.

2. The adaptive slope loading and unloading device according to claim 1, characterized in that, The telescopic frame includes a first telescopic section and a second telescopic section. The first telescopic section is slidably mounted on a first slide rail and is provided with a guide rail extending along the length direction of the first slide rail. The second telescopic section is slidably mounted on the guide rail. The trolley is mounted on the second telescopic section and the wheels are located outside the second telescopic section.

3. The adaptive slope loading and unloading device according to claim 2, characterized in that, The top of both the first telescopic section and the second telescopic section is provided with a pivot and a pulley rotatably mounted on the pivot. The pivot is perpendicular to the first slide rail, and the pulley abuts against the bottom of the trolley.

4. The adaptive slope loading and unloading device according to claim 3, characterized in that, The frame is provided with a limiting member. When the first telescopic section slides along the first slide rail to the maximum distance, the limiting member abuts against the first telescopic section.

5. The adaptive slope loading and unloading device according to claim 2, characterized in that, The first slide rail is provided with a slide groove, the first telescopic section is slidably disposed on the slide groove, and a baffle is provided at the end of the slide groove away from the second telescopic section.

6. The adaptive slope loading and unloading device according to claim 2, characterized in that, The trolley is equipped with a travel control box and handrails on both sides of the travel control box, with the travel control box located at the end of the trolley closest to the first slide rail.

7. The self-levelling ramp of claim 6, wherein, The trolley has two handles on its top surface, located on either side of the walking electrical control box.

8. The self- adaptive ramp loading and unloading device of claim 1, wherein, The top surface of the trolley is provided with multiple limiting grooves, which are arranged circumferentially.

9. The self- adaptive ramp loading and unloading device according to claim 8, characterized in that, The number of limiting grooves is four, and two adjacent limiting grooves are perpendicular to each other.

10. The self- adaptive grade loader / unloader of claim 1, wherein, There are two first slide rails, which are arranged opposite to each other, and the two ends of the slide rod are respectively slidably arranged on the two first slide rails.

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