An air cargo lifting device and its operating method

Abstract

This invention discloses an air cargo lifting device and its operating method, relating to the field of lifting equipment technology. It includes a base plate, a fixed arm above the base plate, a fixed plate fixedly connected to one side of the fixed arm, and two sliders. Through the lifting and loading mechanism, a servo motor drives the fixed arm and fixed plate upwards via a threaded rod. When a protrusion contacts a T-shaped movable block, the T-shaped movable block presses the protrusion, vertical rack, and sliding rod downwards. The movement of the vertical rack drives a drive gear, rotating shaft, and rotating gear to rotate. The rotation of the rotating gear drives a horizontal rack and fixed plate to move horizontally. The movement of the fixed plate carries the cargo into the aircraft's cargo hold, enabling direct delivery of cargo to the aircraft's cargo hold. This allows workers to unload cargo within the cargo hold, making the unloading process safer.

Description

Technical Field

[0001] This invention relates to the field of lifting equipment technology, and in particular to an air cargo lifting device and its operating method. Background Technology

[0002] As a relatively new modern economic development service model, the aviation industry is becoming one of the key areas for the economic development of major cities in the future. Practice has proven that relying on airports to develop aviation hub economy and aviation manufacturing economy is of great significance for driving regional economic development and increasing employment. The role of the aviation industry as a "new driving force" and "growth pole" in regional economic development is conducive to enhancing the central status of cities and better leveraging the radiating and driving role of central cities. In the process of air cargo handling, due to the high altitude of the aircraft cabin, cargo handling is difficult, so an air cargo lifting and jacking device is needed.

[0003] Chinese patent CN107323683A discloses an air cargo lifting device, including a trailer platform. An outer box is fixedly connected to the surface of the trailer platform. A telescopic tube is fixedly connected to the inner wall of the outer box. A spring is fixedly connected to the inner wall of the telescopic tube. A telescopic rod is fixedly connected to one end of the spring. An inner box is slidably connected to the inner wall of the outer box. The surface of the inner box is slidably connected to the surface of the telescopic rod. A transmission motor base is fixedly connected to the inner wall of the inner box. A transmission motor is fixedly connected to the surface of the transmission motor base.

[0004] However, the above invention has the following shortcomings: Most existing air cargo lifting equipment only has simple lifting functions. When the cargo is raised to the height of the aircraft cargo hold, the staff pulls the cargo into the cargo hold. At this time, the staff need to stand on the edge of the cargo hold to unload the cargo. The cargo has weight, which makes it difficult for the staff to unload the cargo. This leads to poor physical stability of the staff and makes it easy for danger to occur. Summary of the Invention

[0005] The purpose of this invention is to provide an air cargo lifting device and its operating method to solve the problems mentioned in the background art.

[0006] The technical solution of the present invention is: an air cargo lifting device, including a base plate, a fixed arm above the base plate, a fixed plate fixedly connected to one side of the fixed arm, and further comprising;

[0007] Two sliders are fixedly connected to the two end sidewalls of the fixed arm, respectively.

[0008] A lifting and loading mechanism is located on one of the sliders and is used for loading air cargo.

[0009] The lifting and feeding mechanism includes an automatic sliding unit, a lifting unit, and an adjusting unit. The automatic sliding unit includes a fixed block fixedly connected to one side of one of the sliders. A rotating hole is provided on one side of the fixed block, and a rotating shaft is rotatably connected in the rotating hole. A rotating gear is keyed to one end of the rotating shaft, and a horizontal rack meshes with the rotating gear. The horizontal rack is fixedly connected to the bottom of the fixed arm. A drive gear is keyed to the other end of the rotating shaft, and a vertical rack meshes with the drive gear. A sliding rod is fixedly connected to the top of the vertical rack. An L-shaped block is slidably sleeved on the sliding rod, and the bottom end of the L-shaped block is fixedly connected to the top of the fixed block. A return spring is sleeved on the sliding rod, and both ends of the return spring are fixedly connected to the L-shaped block and the sliding rod, respectively. A protrusion is fixedly connected to one side of the vertical rack.

[0010] Preferably, the lifting unit includes a fixed frame fixedly connected to the top of the base plate, two sliders are slidably sleeved on the fixed frame, a servo motor is fixedly connected to the top of the base plate, the output end of the servo motor is connected to a threaded rod through a coupling, the fixed arm is screwed onto the threaded rod, and the top end of the threaded rod is rotatably connected to the top inner wall of the fixed frame.

[0011] Preferably, the adjustment unit includes a mounting hole on one side of the fixing frame, a fixing rod is fixedly connected in the mounting hole, a T-shaped movable block is slidably sleeved on the fixing rod, the T-shaped movable block is located directly above the protrusion, a sliding hole is opened at one end of the T-shaped movable block, a pin is slidably connected in the sliding hole, and multiple slots are evenly opened in the vertical direction of the fixing rod, one end of the pin extends into one of the slots.

[0012] Preferably, a limiting block is sleeved on the pin, the limiting block is slidably connected in the sliding hole, and a compression spring is sleeved on the pin, with both ends of the compression spring being fixedly connected to the limiting block and the T-shaped movable block, respectively.

[0013] Preferably, the bottom of the fixing plate is fixedly connected to two reinforcing plates, one end of each of the two reinforcing plates is fixedly connected to one side of the fixing arm, and the sides of the two reinforcing plates that are close to each other are fixedly connected to a fixing strip. The top of the fixing strip has two mounting holes, and movable rods are slidably connected in each of the two mounting holes. The top of the fixing plate has two strip-shaped holes, and the top ends of the two movable rods extend into the two strip-shaped holes and are fixedly connected to an extrusion strip. The top of the extrusion strip extends above the fixing plate.

[0014] Preferably, the bottom ends of the two movable rods are fixedly connected to a movable arm, and each of the two movable rods is fitted with a telescopic spring. The two ends of the telescopic spring are fixedly connected to the movable arm and the fixing strip, respectively. A fixing groove is provided on the top of the base plate, and a magnetic plate is fixedly connected in the fixing groove. The magnetic plate is located directly below the movable arm.

[0015] Preferably, a beveled strip is fixedly connected to one side of the movable arm, and a pressing rod is fixedly connected to one side of the rotating gear, the pressing rod being adapted to the beveled strip.

[0016] Preferably, T-shaped frames are fixedly connected to the top of both ends of the movable arm, and three stop bars are fixedly connected to the top of each of the two T-shaped frames. Three insertion holes are opened on the top of both sides of the fixed plate, and the tops of the six stop bars pass through the six insertion holes and extend to the top of the fixed plate.

[0017] Preferably, one end of the fixed arm is provided with a sliding groove, and a sliding strip is slidably connected in the sliding groove, with one end of the sliding strip fixedly connected to one side of the fixed plate.

[0018] This invention also discloses an operating method for an air cargo lift, comprising the following steps:

[0019] Step 1: Move the device to the cargo hold position of the aircraft. The servo motor drives the fixed arm and fixed plate to move downward to the bottom plate through the threaded rod. The magnetic plate attracts the movable arm, which drives the movable rod and T-shaped frame to move downward, so that the extrusion strip enters the strip hole and the top of the stop rod enters the insertion hole. Load the cargo, start the servo motor in reverse to drive the fixed plate to move upward. The movement of the fixed plate causes the movable arm to disengage from the magnetic plate. The telescopic spring drives the movable rod to reset, so that the extrusion strip contacts the bottom of the cargo, and the stop rod protrudes out of the insertion hole.

[0020] Step 2: As the fixed plate continues to move upward, the T-shaped movable block squeezes the protrusion, vertical rack and sliding rod to move downward. The movement of the vertical rack drives the drive gear, rotating shaft and rotating gear to rotate. The rotation of the rotating gear drives the horizontal rack and fixed plate to move horizontally. The movement of the fixed plate drives the cargo into the aircraft's cargo hold.

[0021] Step 3: When the fixed plate moves horizontally, the extrusion rod presses the beveled strip downwards. The movement of the beveled strip causes the movable arm to move downwards. The movement of the movable arm causes the movable rod, extrusion strip, T-shaped frame and stop bar to move downwards, so that the extrusion strip re-enters the strip hole, and at the same time the top of the stop bar enters the insertion hole.

[0022] This invention provides an improved air cargo lifting device and its operating method, which, compared with the prior art, has the following improvements and advantages:

[0023] Firstly, this invention utilizes a lifting and loading mechanism. A servo motor drives a threaded rod to move a fixed arm and a fixed plate upwards. When the protrusion contacts the T-shaped movable block, the T-shaped movable block presses the protrusion, vertical rack, and sliding rod downwards. The vertical rack's movement drives the drive gear, rotating shaft, and rotating gear to rotate. The rotating gear's rotation drives the horizontal rack and fixed plate to move horizontally. The fixed plate's movement carries the goods into the aircraft's cargo hold, enabling direct delivery of goods to the cargo hold. This allows workers to unload goods within the cargo hold, making the unloading process safer.

[0024] Secondly, when the fixed plate descends to the top of the upper layer of the base plate, the magnetic plate attracts the movable arm, causing the movable arm to move the movable rod and T-shaped frame downwards, so that the extrusion strip enters the strip hole and the top of the stop rod enters the insertion hole. At this time, the goods are placed on the fixed plate. When the fixed plate moves upwards, it causes the movable arm to disengage from the magnetic plate. The telescopic spring causes the movable rod and movable arm to reset, so that the extrusion strip contacts the bottom of the goods. At the same time, the stop rod protrudes out of the insertion hole. Since the extrusion strip is made of rubber, it can increase the friction between the extrusion strip and the goods. At the same time, the shape of the extrusion strip is "wavy", which improves the stability of the goods during the lifting process. The protruding stop rod can prevent the goods from slipping.

[0025] Thirdly, the present invention pulls the pin out of the current slot. The movement of the pin causes the compression spring to compress and undergo elastic deformation. Then, the pin is pulled to move the T-shaped movable block up and down until the T-shaped movable block is moved to the required height. The pin is then released, so that the compression spring drives the pin to return to the matching slot. This realizes the adjustment of the height of the T-shaped movable block, thereby enabling better delivery of goods to the aircraft cargo hold. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall three-dimensional structure from another perspective in this invention;

[0029] Figure 3 For the present invention Figure 2 Schematic diagram of the three-dimensional structure at point A in the middle;

[0030] Figure 4 This is a three-dimensional structural diagram of the fixed rod and T-shaped movable block in this invention.

[0031] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the T-shaped movable block in this invention;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating gear and horizontal rack in this invention;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of the extrusion rod and the beveled strip in this invention;

[0034] Figure 8 For the present invention Figure 1 A schematic diagram of the three-dimensional structure at point B.

[0035] Figure label:

[0036] 1. Base plate; 101. Fixing frame; 102. Slider; 103. Fixing arm; 104. Threaded rod; 105. Servo motor; 106. Fixing plate; 107. Strip hole; 108. Sliding bar; 109. Magnetic plate; 2. Fixing block; 201. Rotating shaft; 202. Rotating gear; 203. Horizontal rack; 204. Drive gear; 205. Vertical rack; 206. Sliding rod; 207. L-shaped block 208. Return spring; 209. Protrusion; 3. Fixing rod; 301. T-shaped movable block; 302. Pin; 303. Slot; 304. Limiting block; 305. Compression spring; 4. Reinforcing plate; 401. Fixing strip; 402. Movable rod; 403. Compression strip; 404. Telescopic spring; 405. Movable arm; 406. T-shaped frame; 407. Stop bar; 408. Beveled strip; 409. Compression rod. Detailed Implementation

[0037] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] This invention provides an improved air cargo lifting device and its operating method. The technical solution of this invention is as follows:

[0039] Example 1: As Figures 1 to 8 As shown, this embodiment of the invention provides an air cargo lifting device, including a base plate 1, a fixed arm 103 above the base plate 1, a fixed plate 106 fixedly connected to one side of the fixed arm 103, and further including;

[0040] Two sliders 102 are fixedly connected to the two end side walls of the fixed arm 103 respectively;

[0041] The lifting and loading mechanism is located on one of the sliders 102 and is used to load air cargo.

[0042] The lifting and feeding mechanism includes an automatic sliding unit, a lifting unit, and an adjusting unit. The automatic sliding unit includes a fixed block 2 fixedly connected to one side of one of the sliders 102. A rotating hole is opened on one side of the fixed block 2, and a rotating shaft 201 is rotatably connected in the rotating hole. A rotating gear 202 is keyed to one end of the rotating shaft 201. A horizontal rack 203 meshes with the rotating gear 202. The horizontal rack 203 is fixedly connected to the bottom of the fixed arm 103. A drive gear 204 is keyed to the other end of the rotating shaft 201. A vertical rack 205 meshes with the drive gear 204. A sliding rod 206 is fixedly connected to the top of the vertical rack 205. An L-shaped block 207 is slidably sleeved on the sliding rod 206. The bottom of the L-shaped block 207... The end is fixedly connected to the top of the fixed block 2. A return spring 208 is sleeved on the sliding rod 206. The two ends of the return spring 208 are fixedly connected to the L-shaped block 207 and the sliding rod 206 respectively. A protrusion 209 is fixedly connected to one side of the vertical rack 205. With the setting of the lifting and loading mechanism, during the process of the lifting unit driving the fixed plate 106 to load goods, the adjusting unit will squeeze the protrusion 209 to move downward. The protrusion 209 drives the drive gear 204, the rotating shaft 201 and the rotating gear 202 to rotate through the vertical rack 205. The rotating gear 202 rotates and drives the horizontal rack 203 and the fixed plate 106 to move. The fixed plate 106 moves into the aircraft cargo hold, realizing the direct delivery of goods to the aircraft cargo hold.

[0043] Furthermore, the lifting unit includes a fixed frame 101 fixedly connected to the top of the base plate 1, two sliders 102 slidably sleeved on the fixed frame 101, a servo motor 105 fixedly connected to the top of the base plate 1, the output end of the servo motor 105 being connected to a threaded rod 104 via a coupling, a fixed arm 103 being screwed onto the threaded rod 104, and the top end of the threaded rod 104 being rotatably connected to the top inner wall of the fixed frame 101; through the setting of the lifting unit, the servo motor 105 drives the threaded rod 104 to rotate, and the rotation of the threaded rod 104 drives the fixed arm 103 and the fixed plate 106 to lift, thus facilitating the transport of goods to the aircraft cargo hold.

[0044] Furthermore, the adjustment unit includes a mounting hole on one side of the fixed frame 101, a fixed rod 3 is fixedly connected in the mounting hole, a T-shaped movable block 301 is slidably sleeved on the fixed rod 3, the T-shaped movable block 301 is located directly above the protrusion 209, one end of the T-shaped movable block 301 has a sliding hole, a pin 302 is slidably connected in the sliding hole, and multiple slots 303 are evenly opened in the vertical direction of the fixed rod 3, one end of the pin 302 extends into one of the slots 303; by setting the adjustment unit, pulling the pin 302 causes the T-shaped movable block 301 to disengage from the current slot 303 until the T-shaped movable block 301 is adjusted to the required height, and then the pin 302 is inserted into the appropriate slot 303, thereby realizing the height adjustment of the T-shaped movable block 301, and thus enabling better delivery of goods into the aircraft cargo hold.

[0045] Furthermore, a limiting block 304 is sleeved on the pin 302, and the limiting block 304 is slidably connected in the sliding hole. A compression spring 305 is sleeved on the pin 302, and the two ends of the compression spring 305 are fixedly connected to the limiting block 304 and the T-shaped movable block 301, respectively. With the setting of the compression spring 305, the compression spring 305 is in a compressed state, which can generate a compressive force on the limiting block 304, ensuring that the pin 302 will not fall off under the action of external force.

[0046] Furthermore, two reinforcing plates 4 are fixedly connected to the bottom of the fixed plate 106. One end of each reinforcing plate 4 is fixedly connected to one side of the fixed arm 103. A fixing strip 401 is fixedly connected to the side of the two reinforcing plates 4 that are close to each other. Two mounting holes are opened at the top of the fixing strip 401, and movable rods 402 are slidably connected in each of the two mounting holes. Two strip-shaped holes 107 are opened at the top of the fixed plate 106. The top ends of the two movable rods 402 extend into the two strip-shaped holes 107 and are fixedly connected to the compression strip 403. The top of the compression strip 403 extends above the fixed plate 106. By setting the compression strip 403, the compression strip 403 is made of rubber, which can increase the friction between the compression strip 403 and the goods. At the same time, the shape of the compression strip 403 is "wavy", which improves the stability of the goods during the lifting process.

[0047] Furthermore, the bottom ends of the two movable rods 402 are fixedly connected to the movable arm 405. Each of the two movable rods 402 is fitted with a telescopic spring 404. The two ends of the telescopic spring 404 are fixedly connected to the movable arm 405 and the fixing strip 401, respectively. The top of the base plate 1 is provided with a fixing groove, and a magnetic plate 109 is fixedly connected in the fixing groove. The magnetic plate 109 is located directly below the movable arm 405. With the setting of the magnetic plate 109, when the movable arm 405 enters the adsorption range of the magnetic plate 109, the magnetic plate 109 can adsorb the movable arm 405, so that the extrusion strip 403 can enter the strip hole 107, thus not affecting the staff to place the goods on the fixing plate 106.

[0048] Furthermore, a beveled strip 408 is fixedly connected to one side of the movable arm 405, and a pressing rod 409 is fixedly connected to one side of the rotating gear 202. The pressing rod 409 is adapted to the beveled strip 408. With the setting of the pressing rod 409, when the beveled strip 408 moves through the pressing rod 409, the pressing rod 409 will press the beveled strip 408 downward, thus realizing the automatic downward movement of the beveled strip 408.

[0049] Furthermore, T-shaped frames 406 are fixedly connected to the top of both ends of the movable arm 405, and three stop bars 407 are fixedly connected to the top of each of the two T-shaped frames 406. Three insertion holes are opened on the top of both sides of the fixed plate 106, and the top of the six stop bars 407 passes through the six insertion holes and extends to the top of the fixed plate 106. The stop bars 407 are designed to prevent the goods from slipping.

[0050] Furthermore, a groove is provided at one end of the fixed arm 103, and a sliding strip 108 is slidably connected in the groove. One end of the sliding strip 108 is fixedly connected to one side of the fixed plate 106. The sliding strip 108 can support the fixed plate 106 and improve the stability of the fixed plate 106.

[0051] Example 2: This example discloses an operation method for an air cargo lift, including the following steps:

[0052] Step 1: Move the device to the cargo hold position of the aircraft. The servo motor 105 drives the fixed arm 103 and the fixed plate 106 to move downward to the bottom plate 1 via the threaded rod 104. The magnetic plate 109 attracts the movable arm 405, which drives the movable rod 402 and the T-shaped frame 406 to move downward, so that the extrusion strip 403 enters the strip hole 107 and the top of the stop rod 407 enters the insertion hole. The cargo is loaded. The servo motor 105 is started in reverse to drive the fixed plate 106 to move upward. The movement of the fixed plate 106 causes the movable arm 405 to disengage from the magnetic plate 109. The telescopic spring 404 drives the movable rod 402 to reset, so that the extrusion strip 403 contacts the bottom of the cargo, and the stop rod 407 protrudes out of the insertion hole.

[0053] Step 2: As the fixed plate 106 continues to move upward, the T-shaped movable block 301 presses the protrusion 209, vertical rack 205 and sliding rod 206 downward. The movement of the vertical rack 205 drives the drive gear 204, rotating shaft 201 and rotating gear 202 to rotate. The rotation of the rotating gear 202 drives the horizontal rack 203 and fixed plate 106 to move horizontally. The movement of the fixed plate 106 drives the cargo into the aircraft's cargo hold.

[0054] Step 3: When the fixed plate 106 moves horizontally, the extrusion rod 409 extrudes the beveled strip 408 downwards. The movement of the beveled strip 408 causes the movable arm 405 to move downwards. The movement of the movable arm 405 causes the movable rod 402, the extrusion strip 403, the T-shaped frame 406, and the stop rod 407 to move downwards, so that the extrusion strip 403 re-enters the strip hole 107, and at the same time, the top of the stop rod 407 enters the insertion hole.

[0055] Specific implementation steps: Move the device to the cargo hold position of the aircraft, start the servo motor 105 to drive the threaded rod 104 to rotate. The rotation of the threaded rod 104 causes the fixed arm 103, the fixed plate 106 and the two sliders 102 to move downward. The movement of the fixed plate 106 causes the reinforcing plate 4, the fixed strip 401, the movable rod 402, the telescopic spring 404 and the movable arm 405 to move downward. When the fixed plate 106 descends to the top of the upper layer of the base plate 1, since the movable arm 405 is made of metal, the magnetic plate 109 can attract the movable arm 405, causing the movable arm 405 to drive the movable rod 402 and the T-shaped frame 406 to move downward. The movement of the movable arm 405 causes the telescopic spring 404 to stretch and undergo elastic deformation. The movement of the movable rod 402 causes the extrusion strip 403 to move downward and enter the strip hole 107. At the same time, the movement of the T-shaped frame 406 leads to... The movable stop lever 407 moves, causing its top end to enter the insertion hole. At this time, the goods are placed on the fixed plate 106. The servo motor 105 is started in reverse to drive the threaded rod 104 to rotate, causing the threaded rod 104 to move the fixed plate 106 upward. The movement of the fixed plate 106 causes the movable arm 405 to disengage from the magnetic plate 109. The telescopic spring 404 drives the movable rod 402, the extrusion strip 403, the movable arm 405, the T-shaped frame 406, and the stop lever 407 to move upward, causing the extrusion strip 403 to contact the bottom of the goods. At the same time, the stop lever 407 moves upward and protrudes out of the insertion hole. Since the extrusion strip 403 is made of rubber, it can increase the friction between the extrusion strip 403 and the goods. At the same time, the shape of the extrusion strip 403 is "wavy", which improves the stability of the goods during the lifting process. The protruding stop lever 407 can prevent the goods from slipping.

[0056] The fixed arm 103 moves upward, causing the slider 102, fixed block 2, L-shaped block 207, and sliding rod 206 to move upward. The sliding rod 206 moves, causing the vertical rack 205 and protrusion 209 to move upward. When the protrusion 209 contacts the T-shaped movable block 301, the T-shaped movable block 301 squeezes the protrusion 209 downward. The movement of the protrusion 209 causes the vertical rack 205 and sliding rod 206 to move downward. The movement of the sliding rod 206 causes the return spring 208 to compress and undergo elastic deformation. The movement of the vertical rack 205 causes the drive gear 204, rotating shaft 201, and rotating gear 202 to rotate. The rotation of the rotating gear 202 causes the horizontal rack 203 and fixed plate 106 to move horizontally. The movement of the fixed plate 106 causes the cargo to enter the aircraft's cargo hold. The horizontal movement of the movable arm 405 and the inclined strip 408 causes them to move horizontally. When the inclined edge of the inclined strip 408 passes the extrusion rod 409, the extrusion rod 409 extrudes the inclined strip 408 downwards. The movement of the inclined strip 408 causes the movable arm 405 to move downwards. The movement of the movable arm 405 causes the movable rod 402, the extrusion strip 403, the T-shaped frame 406, and the stop rod 407 to move downwards, so that the extrusion strip 403 re-enters the strip hole 107. At the same time, the top of the stop rod 407 enters the insertion hole. At this point, the staff can unload the goods. This allows the goods to move horizontally into the cargo hold during the transport of goods to the aircraft cargo hold, enabling the goods to be directly transported into the aircraft cargo hold. This allows the staff to unload the goods in the cargo hold, making the unloading process safer.

[0057] Pulling the pin 302 outwards moves it out of the current slot 303. The movement of the pin 302 causes the compression spring 305 to compress and undergo elastic deformation. Then, pulling the pin 302 causes the T-shaped movable block 301 to rise and fall until the T-shaped movable block 301 is moved to the required height. Loosening the pin 302 allows the compression spring 305 to drive the pin 302 back into the matching slot 303, thus achieving the adjustment of the height of the T-shaped movable block 301, which in turn enables better delivery of goods to the aircraft cargo hold.

[0058] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air cargo lifting device, comprising a base plate (1), characterized in that: A fixing arm (103) is provided above the base plate (1), and a fixing plate (106) is fixedly connected to one side of the fixing arm (103), and also includes; Two sliders (102) are fixedly connected to the two end sidewalls of the fixed arm (103); A lifting and loading mechanism is located on one of the sliders (102) and is used to load air cargo. The lifting and feeding mechanism includes an automatic sliding unit, a lifting unit, and an adjusting unit. The automatic sliding unit includes a fixed block (2) fixedly connected to one side of one of the sliders (102). A rotating hole is provided on one side of the fixed block (2), and a rotating shaft (201) is rotatably connected in the rotating hole. A rotating gear (202) is keyed to one end of the rotating shaft (201), and a horizontal rack (203) meshes with the rotating gear (202). The horizontal rack (203) is fixedly connected to the bottom of the fixed arm (103), and a drive gear is keyed to the other end of the rotating shaft (201). (204), a vertical rack (205) meshes with the drive gear (204), a sliding rod (206) is fixedly connected to the top of the vertical rack (205), an L-shaped block (207) is slidably sleeved on the sliding rod (206), the bottom end of the L-shaped block (207) is fixedly connected to the top of the fixed block (2), a return spring (208) is sleeved on the sliding rod (206), the two ends of the return spring (208) are fixedly connected to the L-shaped block (207) and the sliding rod (206) respectively, and a protrusion (209) is fixedly connected to one side of the vertical rack (205). The lifting unit includes a fixed frame (101) fixedly connected to the top of the base plate (1), two sliders (102) are slidably sleeved on the fixed frame (101), a servo motor (105) is fixedly connected to the top of the base plate (1), the output end of the servo motor (105) is connected to a threaded rod (104) through a coupling, the fixed arm (103) is screwed onto the threaded rod (104), and the top end of the threaded rod (104) is rotatably connected to the top inner wall of the fixed frame (101); The adjustment unit includes a mounting hole on one side of the fixing frame (101), a fixing rod (3) is fixedly connected in the mounting hole, a T-shaped movable block (301) is slidably sleeved on the fixing rod (3), the T-shaped movable block (301) is located directly above the protrusion (209), one end of the T-shaped movable block (301) is provided with a sliding hole, a pin (302) is slidably connected in the sliding hole, and a plurality of slots (303) are evenly provided in the vertical direction of the fixing rod (3), one end of the pin (302) extends into one of the slots (303); A limiting block (304) is sleeved on the pin (302), and the limiting block (304) is slidably connected in the sliding hole. A compression spring (305) is sleeved on the pin (302), and the two ends of the compression spring (305) are fixedly connected to the limiting block (304) and the T-shaped movable block (301) respectively.

2. The air cargo lifting device according to claim 1, characterized in that: The bottom of the fixed plate (106) is fixedly connected to two reinforcing plates (4). One end of each of the two reinforcing plates (4) is fixedly connected to one side of the fixed arm (103). The two reinforcing plates (4) are fixedly connected to a fixing strip (401) on the side that is close to each other. The top of the fixing strip (401) has two mounting holes. Movable rods (402) are slidably connected in each of the two mounting holes. The top of the fixed plate (106) has two strip holes (107). The top ends of the two movable rods (402) extend into the two strip holes (107) and are fixedly connected to an extrusion strip (403). The top of the extrusion strip (403) extends above the fixed plate (106).

3. The air cargo lifting device according to claim 2, characterized in that: The bottom ends of the two movable rods (402) are fixedly connected to the movable arm (405). Each of the two movable rods (402) is fitted with a telescopic spring (404). The two ends of the telescopic spring (404) are fixedly connected to the movable arm (405) and the fixing strip (401) respectively. The top of the base plate (1) is provided with a fixing groove. A magnetic plate (109) is fixedly connected in the fixing groove. The magnetic plate (109) is located directly below the movable arm (405).

4. The air cargo lifting device according to claim 3, characterized in that: A beveled strip (408) is fixedly connected to one side of the movable arm (405), and a pressing rod (409) is fixedly connected to one side of the rotating gear (202). The pressing rod (409) is adapted to the beveled strip (408).

5. The air cargo lifting device according to claim 4, characterized in that: The top of both ends of the movable arm (405) is fixedly connected to a T-shaped frame (406), and the top of the two T-shaped frames (406) is fixedly connected to three stop bars (407). The top of both sides of the fixed plate (106) is provided with three insertion holes, and the top of the six stop bars (407) respectively passes through the six insertion holes and extends to the top of the fixed plate (106).

6. The air cargo lifting device according to claim 5, characterized in that: One end of the fixed arm (103) is provided with a sliding groove, and a sliding strip (108) is slidably connected in the sliding groove. One end of the sliding strip (108) is fixedly connected to one side of the fixed plate (106).

7. The method of operating an air cargo lifting device according to any one of claims 1-6, characterized in that: Includes the following steps: Step 1: Move the device to the cargo hold position of the aircraft. The servo motor (105) drives the fixed arm (103) and the fixed plate (106) to move downward to the bottom plate (1) via the threaded rod (104). The magnetic plate (109) attracts the movable arm (405), which drives the movable rod (402) and the T-shaped frame (406) to move downward, so that the extrusion strip (403) enters the strip hole (107) and the top of the stop rod (407) enters the insertion hole. Load the cargo, start the servo motor (105) in reverse to drive the fixed plate (106) to move upward. The movement of the fixed plate (106) drives the movable arm (405) to disengage from the magnetic plate (109). The telescopic spring (404) drives the movable rod (402) to reset, so that the extrusion strip (403) contacts the bottom of the cargo, and the stop rod (407) protrudes out of the insertion hole. Step 2: As the fixed plate (106) continues to move upward, the T-shaped movable block (301) squeezes the protrusion (209), vertical rack (205) and sliding rod (206) to move downward. The vertical rack (205) moves and drives the drive gear (204), rotating shaft (201) and rotating gear (202) to rotate. The rotating gear (202) rotates and drives the horizontal rack (203) and fixed plate (106) to move horizontally. The fixed plate (106) moves and drives the cargo into the aircraft's cargo hold. Step 3: When the fixed plate (106) moves horizontally, the extrusion rod (409) extrudes the beveled strip (408) downward. The movement of the beveled strip (408) drives the movable arm (405) downward. The movement of the movable arm (405) drives the movable rod (402), the extrusion strip (403), the T-shaped frame (406) and the stop rod (407) downward, so that the extrusion strip (403) re-enters the strip hole (107), and at the same time, the top of the stop rod (407) enters the insertion hole.

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