Loading and unloading lifting machine for meat refrigerator car

Abstract

The utility model provides a loading and unloading lifting machine for a meat refrigerator car. The loading and unloading lifting machine comprises a lifting frame; the lifting mechanism is arranged at the bottom of the lifting frame, the bottom is suitable for being fixed to the ground, and the lifting end is connected with the lifting frame and used for pushing the lifting frame to do lifting motion; the stand column device is arranged at the bottom of the lifting frame, the bottom is suitable for being fixed to the ground, the top end is connected with the lifting frame, and the stand column device is used for providing guidance when the lifting frame ascends and descends; the thrust cylinder is arranged on the lifting frame; the propelling guide column device is arranged on the lifting frame, and the telescopic end of the propelling guide column device can do horizontal telescopic motion under the action of a propelling oil cylinder; the overhanging frame is connected with the telescopic end of the pushing guide column device; and the hook mechanism is arranged below the overhanging frame. According to the loading and unloading lifting machine for the meat refrigerator car, loading and unloading of meat are achieved through mechanical equipment, the workload of carrying personnel can be greatly reduced, materials are hooked and fixed through the hooks, safety and reliability are achieved, no contact between people and fresh meat can be achieved in the fresh meat transferring, loading and unloading processes, and the sanitation and safety degree is higher.

Description

Technical Field

[0001] This utility model belongs to the field of lifting machine technology, specifically relating to a lifting machine for loading and unloading meat refrigerated trucks. Background Technology

[0002] Fresh mutton or frozen beef and mutton transported via cold chain mainly uses refrigerated trucks for delivery. During loading, the fresh or frozen mutton or beef and mutton needs to be manually moved onto the refrigerated trucks, and upon arrival at the delivery location, it needs to be manually unloaded. Currently, this method of manually moving and unloading the fresh or frozen mutton or beef and mutton is not only labor-intensive, time-consuming, and inefficient, but also poses safety hazards because frozen beef and mutton are heavy and slippery, easily slipping and potentially injuring workers during manual handling.

[0003] Chinese patent document CN218619258U discloses a robotic arm for loading chilled meat, including a chassis with walking mechanisms on both sides. Each walking mechanism includes a drive shaft, a driven shaft, motor A, driven wheels, and tracks. A lifting mechanism is located on one side of the walking mechanism, a rotating mechanism on the other side, and a control mechanism on the same side. The robotic arm uses motor A, which, in conjunction with the driven wheels, drives the tracks. When both motors A rotate in the same direction, the robotic arm moves forward or backward; when they rotate in opposite directions, the robotic arm turns, moving to the desired location. This allows the robotic arm to move on the ground, handling multiple material transport tasks, replacing manual operation, and improving automation. However, this robotic arm still suffers from poor stability during transport, can only lift one material at a time, and has relatively low work efficiency. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a meat refrigerated truck loading and unloading lifting machine. The machine realizes the loading and unloading of meat through mechanical equipment, which can greatly reduce the workload of handling personnel. Moreover, the hook is used to hook and fix the materials safely and reliably. During the loading and unloading of fresh meat, people and fresh meat can be kept out of contact, which is more hygienic and safe, and eliminates the safety hazards such as slippage and injury caused by manual handling.

[0005] To solve the above problems, this utility model provides a meat refrigerated truck loading and unloading lifting machine, comprising:

[0006] Lifting frame;

[0007] A lifting mechanism is located at the bottom of the lifting frame. The bottom of the lifting mechanism is adapted to be fixed to the ground, and the lifting end of the lifting mechanism is connected to the lifting frame. The lifting mechanism is used to push the lifting frame to move up and down.

[0008] A support column is provided at the bottom of the lifting frame. The bottom of the support column is adapted to be fixed to the ground, and the top of the support column is connected to the lifting frame. The support column is used to provide guidance when the lifting frame moves up and down.

[0009] The hydraulic cylinder is mounted on the lifting frame;

[0010] A push guide column device is provided on the lifting frame, and the telescopic end of the push guide column device can perform horizontal telescopic movement under the action of the push cylinder;

[0011] The cantilever frame is connected to the telescopic end of the propulsion guide column device;

[0012] The hook mechanism is located below the cantilever frame.

[0013] Preferably, the column assembly includes:

[0014] A column sleeve, the bottom of which is adapted to be fixed to the ground;

[0015] The column guide rod is movable and is installed in the column sleeve; the top of the column guide rod is connected to the lifting frame.

[0016] Vertical guide rails are provided on the side wall of the column guide rod;

[0017] The guide slide block is located on the inner wall of the column sleeve, and the vertical guide rail is slidably connected to the guide slide block.

[0018] Preferably, the cross-section of the column guide rod is square; there are four vertical guide rails, which are respectively disposed on the four side walls of the column guide rod; there are four guide groove sliders, which cooperate with the four vertical guide rails respectively.

[0019] Preferably, the column assembly further includes:

[0020] A column top seat plate is provided at the top of the column guide rod, and the column top seat plate is connected to the lifting frame;

[0021] The column base plate is located at the bottom end of the column sleeve, and the column base plate can be fixed to the ground by anchor bolts.

[0022] Preferably, the lifting mechanism includes:

[0023] Cylinder liner base plate, which can be fixed to the ground by anchor bolts;

[0024] A lifting cylinder liner, the bottom end of which is connected to the cylinder liner base plate;

[0025] The lifting cylinder body is located within the lifting cylinder liner;

[0026] The piston rod of the lifting cylinder is located in the lifting cylinder body;

[0027] A lifting top plate is hinged to the top end of the lifting cylinder piston rod; the lifting top plate is connected to the lifting frame.

[0028] Preferably, the propulsion guide post device includes:

[0029] A guide sleeve is provided on the lifting frame;

[0030] A propulsion guide rod is horizontally telescopically disposed within the propulsion guide sleeve, and the propulsion guide sleeve provides guidance for the horizontal telescopic movement of the propulsion guide rod; the rear end of the propulsion guide rod is hinged to the front end of the piston rod of the propulsion cylinder; the front end of the propulsion guide rod is connected to the cantilever frame.

[0031] Preferably, the lifting frame is a square or rectangular frame; a middle frame crossbar is provided in the middle of the lifting frame, and a middle frame left vertical bar and a middle frame right vertical bar are provided between the middle frame crossbar and the rear edge of the lifting frame; the propulsion cylinder is mounted on the propulsion cylinder frame; both ends of the propulsion cylinder frame are respectively connected to the middle frame left vertical bar and the middle frame right vertical bar; the upper end of the propulsion cylinder frame is also connected to the middle frame left vertical bar and the middle frame right vertical bar by a propulsion frame left diagonal bar and a propulsion frame right diagonal bar, respectively.

[0032] Preferably, the hook mechanism includes:

[0033] A sliding bracket is disposed below the cantilever frame; the sliding bracket includes an inner bracket and an outer bracket, the inner bracket and the outer bracket are arranged in parallel; a roller frame gap is formed between the inner bracket and the outer bracket; a roller mounting groove is formed between the top surface of the inner bracket and the bottom surface of the cantilever frame;

[0034] The support roller is rotatably disposed in the roller mounting groove;

[0035] The roller frame body is disposed in the roller frame interval;

[0036] The idler roller shaft is horizontally positioned on the upper part of the roller frame; the end of the idler roller shaft is connected to the supporting roller.

[0037] A left sliding roller is rotatably disposed on one side of the roller frame body and located in the roller frame interval; the left sliding roller can roll along the inner wall of the inner bracket;

[0038] A right sliding roller is rotatably disposed on the other side of the roller frame body and located in the roller frame interval; the right sliding roller can roll along the inner wall of the inner bracket;

[0039] The hook body is located at the lower part of the roller frame body.

[0040] Preferably, the inner bracket is a U-shaped frame welded from angle steel; the angle steel of the inner bracket includes a vertically downward first side wing plate and a horizontal second side wing plate connected to each other; the outer bracket is a U-shaped frame welded from angle steel and arranged around the inner bracket; the angle steel of the outer bracket includes a vertically downward third side wing plate and a horizontal fourth side wing plate connected to each other; a roller frame gap is formed between the first side wing plate and the third side wing plate; a roller mounting groove is formed between the second side wing plate and the bottom surface of the cantilever frame.

[0041] Preferably, the lower part of the roller frame body is provided with a hook frame hole; the bottom of the hook frame hole on the roller frame body is provided with a hook frame retaining ring; the inside of the hook frame retaining ring forms a retaining ring vertical hole;

[0042] The hook body includes:

[0043] The hook handle rod has its top end inserted into the vertical hole of the retaining ring and can rotate within the vertical hole of the retaining ring; the top end of the hook handle rod is provided with a handle head, the outer diameter of which is larger than the inner diameter of the vertical hole of the retaining ring, and the top end of the hook handle rod is engaged above the retaining ring of the hook frame through the handle head;

[0044] The left hook is located at the bottom of the hook handle bar, and the left hook is raised to the upper left.

[0045] The right hook is located at the bottom of the hook handle rod, and the right hook is raised to the upper right.

[0046] Compared with the prior art, this utility model has the following advantages:

[0047] This utility model relates to a meat refrigerated truck loading and unloading lift. Through mechanical equipment, it loads and unloads meat, significantly reducing the workload of handling personnel. Multiple hooks at the bottom of the cantilever frame transfer multiple pieces of meat at once, saving time and labor and greatly improving work efficiency. Furthermore, the hooks ensure safe and reliable material handling and securing, allowing for contactless handling of fresh meat and enhancing hygiene and safety. This eliminates safety hazards such as slippage and injury caused by manual handling. The meat refrigerated truck loading and unloading lift in this embodiment uses a vertically positioned lifting mechanism and a horizontally positioned propulsion cylinder to adjust the horizontal and vertical position of the meat. The column device and propulsion guide column device provide guidance for vertical and horizontal movement, resulting in better stability during meat loading and unloading. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the structure of the meat refrigerated truck loading and unloading lift described in this embodiment of the utility model;

[0049] Figure 2 This is a top view of the meat refrigerated truck loading and unloading lift described in this embodiment of the utility model;

[0050] Figure 3 This is a left view of the column device and lifting cylinder of the meat refrigerated truck loading and unloading lift described in this embodiment of the utility model;

[0051] Figure 4 yes Figure 1 A magnified view of a section at point A in the middle;

[0052] Figure 5 yes Figure 1 A magnified view of a section at point B.

[0053] Wherein: 1-Lifting frame, 101-Center frame crossbar, 102-Center frame left vertical bar, 103-Center frame right vertical bar, 104-Propeller frame left diagonal bar, 105-Propeller frame right diagonal bar, 2-Column assembly, 201-Column guide rod, 202-Column sleeve, 203-Column top plate, 204-Column base plate, 205-Vertical guide rail, 206-Guide groove slider, 3-Lifting cylinder, 301-Lifting cylinder body, 302-Lifting cylinder piston rod, 303-Lifting cylinder sleeve, 304-Cylinder sleeve base plate, 305-Lifting top plate, 4-Propeller cylinder 5-Propulsion guide post device; 501-Propulsion guide rod; 502-Propulsion guide sleeve; 503-Guide rod hinge seat; 6-Suspension frame; 7-Propulsion cylinder frame; 8-Sliding bracket; 801-Inner bracket; 802-Outer bracket; 803-Fixed seat; 9-Sliding hook device; 900-Roller frame body; 901-Idler roller shaft; 902-Outer bearing idler roller; 903-Inner bearing idler roller; 904-Left sliding roller; 905-Right sliding roller; 906-Hook body; 907-Hook frame retaining ring; 908-Hook handle rod; 909-Handle rod head. Detailed Implementation

[0054] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0055] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0056] Example 1

[0057] like Figure 1 , Figure 2 As shown in this embodiment, a meat refrigerated truck loading and unloading lift includes:

[0058] Lifting frame 1;

[0059] The lifting mechanism 3 is located at the bottom of the lifting frame 1. The bottom of the lifting mechanism 3 is suitable for being fixed to the ground. The lifting end of the lifting mechanism 3 is connected to the lifting frame 1. The lifting mechanism 3 is used to push the lifting frame 1 to move up and down.

[0060] The column device 2 is located at the bottom of the lifting frame 1. The bottom of the column device 2 is suitable for being fixed to the ground, and the top of the column device 2 is connected to the lifting frame 1. The column device 2 is used to provide guidance when the lifting frame 1 moves up and down.

[0061] The hydraulic cylinder 4 is mounted on the lifting frame 1;

[0062] The push guide column device 5 is mounted on the lifting frame 1. The telescopic end of the push guide column device 5 can move horizontally under the action of the push cylinder 4.

[0063] The cantilever frame 6 is connected to the telescopic end of the propulsion guide column device 5;

[0064] Multiple hook mechanisms 9 are located below the cantilever frame 6.

[0065] In this embodiment, the meat refrigerated truck loading and unloading lift first fixes the entire lift to the ground by fixing the bottom of the lifting mechanism and the column device. Then, the lifting mechanism lifts the lifting frame to an appropriate height under the guidance of the column device. Then, the push cylinder pushes the push guide column device, which pushes the suspension frame to an appropriate horizontal position. Then, the meat to be transported is hooked to the bottom of the suspension frame by the hook mechanism. Then, the vertical and horizontal positions of the suspension frame are adjusted by the lifting mechanism and the push cylinder until the material is in the unloading position. Then, the material is removed from the hook mechanism, realizing the transfer of meat materials.

[0066] The meat refrigerated truck loading and unloading lift of this embodiment uses mechanical equipment to load and unload meat, greatly reducing the workload of handling personnel. Multiple hook mechanisms at the bottom of the cantilever frame transfer multiple pieces of meat at once, saving time and labor and significantly improving work efficiency. Furthermore, the hooks ensure safe and reliable material handling and fixation, allowing for contactless handling of fresh meat and enhancing hygiene and safety, eliminating safety hazards such as slippage and injury caused by manual handling. The meat refrigerated truck loading and unloading lift of this embodiment uses a vertically arranged lifting mechanism and a horizontally arranged propulsion cylinder to adjust the horizontal and vertical position of the meat materials. The column device and propulsion guide column device provide guidance for the vertical and horizontal movement, resulting in better stability during meat loading and unloading.

[0067] Preferably, such as Figure 3 As shown, the column assembly 2 includes:

[0068] The column sleeve 202 has a bottom that is suitable for fixing to the ground;

[0069] The column guide rod 201 is installed in the column sleeve 202 and can be raised and lowered; the top of the column guide rod 201 is connected to the lifting frame 1.

[0070] Vertical guide rail 205 is installed on the side wall of column guide rod 201;

[0071] The guide slide block 206 is located on the inner wall of the column sleeve 202, and the vertical guide rail 205 is slidably connected to the guide slide block 206.

[0072] The guide slider 206 can guide the vertical guide rail 205, making the vertical sliding of the column guide rod 201 within the column sleeve 202 smoother and more flexible. More importantly, it will not deviate during movement.

[0073] More preferably, the cross-section of the column guide rod 201 is square; there are four vertical guide rails 205, respectively disposed on the four side walls of the column guide rod 201; there are four guide groove sliders 206, which respectively cooperate with the four vertical guide rails. By providing vertical guide rails and guide groove sliders on the four sides of the column guide rod, the movement of the column guide rod in the column sleeve can be better guided, ensuring that it does not deviate during vertical movement.

[0074] More preferably, the vertical guide rail is located on the central axis of each side wall of the column guide rod.

[0075] Preferably, the column assembly 2 further includes:

[0076] The column top plate 203 is located at the top of the column guide rod 201 and is connected to the lifting frame 1.

[0077] The column base plate 204 is located at the bottom end of the column sleeve 202, and the column base plate can be fixed to the ground by anchor bolts.

[0078] By setting a column top plate and a column base plate to fix the column guide rod, column sleeve to the lifting frame and the ground, the structural stability of the connection can be further improved.

[0079] Preferably, the lifting frame 1 is a square or rectangular frame, and there are four upright devices 2, which are respectively set at the four corners of the lifting frame 1.

[0080] Preferably, the lifting mechanism 3 includes:

[0081] Cylinder liner base plate 304, the cylinder liner base plate 304 can be fixed to the ground by anchor bolts;

[0082] Lifting cylinder liner 303, the bottom end of which is connected to the cylinder liner base plate;

[0083] The lifting cylinder body 301 is located in the lifting cylinder liner 303;

[0084] The piston rod 302 of the lifting cylinder is located in the lifting cylinder body 301;

[0085] The lifting top plate 305 is hinged to the top end of the lifting cylinder piston rod 302; the lifting top plate 305 is connected to the lifting frame 1.

[0086] The lifting frame is raised and lowered using a lifting cylinder, resulting in greater stability.

[0087] Furthermore, the lifting top plate 305 is welded and fixed to the middle of the lifting frame 1, which enhances stability during lifting movements.

[0088] Preferably, the propulsion guide post device 5 includes:

[0089] The propulsion guide sleeve 502 is mounted on the lifting frame 1;

[0090] The push guide rod 501, which can move horizontally, is located in the push guide sleeve 502 and provides guidance for the horizontal movement of the push guide rod through the push guide sleeve. The rear end of the push guide rod is hinged to the front end of the piston rod of the push cylinder 4 through the guide rod hinge seat 503. The front end of the push guide rod is connected to the cantilever frame 6. Through the guiding effect of the push guide sleeve in the push guide rod device, the horizontal movement stability of the lifting frame can be strengthened.

[0091] Preferably, the lifting frame 1 is a square or rectangular frame; a middle frame crossbar 101 is provided in the middle of the lifting frame 1, and a middle frame left vertical bar 102 and a middle frame right vertical bar 103 are provided between the middle frame crossbar 101 and the rear edge of the lifting frame 1; the propulsion cylinder 4 is mounted on the propulsion cylinder frame 7; both ends of the propulsion cylinder frame 7 are connected to the middle frame left vertical bar 102 and the middle frame right vertical bar 103 respectively; the upper end of the propulsion cylinder frame 7 is also connected to the middle frame left vertical bar 102 and the middle frame right vertical bar 103 by a propulsion frame left diagonal bar 104 and a propulsion frame right diagonal bar 105 respectively. The propulsion frame left diagonal bar 104 and the propulsion frame right diagonal bar 105 can further improve the connection strength of the propulsion cylinder frame 7, making it more robust. Specifically, the left and right ends of the propulsion cylinder frame 7 are welded to the middle frame left vertical bar 102 and the middle frame right vertical bar 103, the propulsion frame left diagonal bar 104, and the propulsion frame right diagonal bar 105 respectively.

[0092] Preferably, such as Figure 4 , Figure 5 As shown, the hook mechanism 9 includes:

[0093] A sliding bracket 8 is located below the cantilever frame 6; the sliding bracket 8 includes an inner bracket 801 and an outer bracket 802, which are arranged in parallel; a roller frame gap is formed between the inner bracket 801 and the outer bracket 802; a roller mounting groove is formed between the top surface of the inner bracket 801 and the bottom surface of the cantilever frame 6.

[0094] The support roller is rotatably mounted in the roller mounting groove;

[0095] The roller frame body is 900mm long and is located in the roller frame interval;

[0096] The idler roller shaft 901 is horizontally located on the upper part of the roller frame body 900; the upper part of the roller frame body 900 is provided with an idler roller shaft hole and the idler roller shaft 901 is installed thereon, and the end of the idler roller shaft 901 is connected to the support roller wheel.

[0097] The left sliding roller 904 is rotatably disposed on one side of the roller frame body 900 and located in the roller frame interval; the left sliding roller 904 can roll along the inner wall of the inner bracket 801;

[0098] The right sliding roller 905 is rotatably disposed on the other side of the roller frame body 900 and located in the roller frame interval; the right sliding roller 905 can roll along the inner wall of the inner bracket 801;

[0099] The hook body 906 is located at the lower part of the roller frame body 900.

[0100] The supporting roller can move along the roller mounting groove, and the left and right sliding rollers can roll along the inner wall of the inner bracket, thereby driving the hook body to move along the edge of the sliding bracket, making it easier to adjust the position of the hook body on the sliding bracket, thus facilitating the loading and unloading of meat.

[0101] Preferably, the inner bracket 801 is a U-shaped frame welded from angle steel, and the top view of the inner bracket is U-shaped; the angle steel of the inner bracket includes a vertically downward first side wing plate and a horizontal second side wing plate facing the center of the cantilever frame 6 connected together; the outer bracket 802 is a U-shaped frame welded from angle steel and arranged around the inner bracket 801; the angle steel of the outer bracket includes a vertically downward third side wing plate and a horizontally outward fourth side wing plate connected together; a roller frame gap is formed between the first side wing plate and the third side wing plate; a roller mounting groove is formed between the second side wing plate and the bottom surface of the cantilever frame.

[0102] Preferably, the inner bracket 801 is welded and fixed to the lower end of the suspension frame 6 by a number of connecting plates arranged at intervals, and the outer edge of the fourth wing plate of the outer bracket 802 is provided with a number of fixing seats 803 at intervals, and the upper end of the fixing seat 803 is fixedly installed on the suspension frame 6 by screws.

[0103] Preferably, the support roller includes an outer support roller 902 and an inner support roller 903. The outer support roller 902 is mounted on the front part of the roller shaft 901 via a bearing. The lower end of the outer support roller 902 rests on the upper end of the horizontal fourth wing plate of the outer bracket 802. The inner support roller 903 is mounted on the rear part of the roller shaft 901 via a bearing. The lower end of the inner support roller 903 rests on the upper end of the horizontal second wing plate of the inner bracket 801.

[0104] Preferably, the left side of the roller frame 900 is provided with a left sliding roller mounting port and a left sliding roller 904 is installed thereon, and the right side of the roller frame 900 is provided with a right sliding roller mounting port and a right sliding roller 905 is installed thereon.

[0105] Preferably, the roller frame body 900 above the left sliding roller mounting opening is provided with an upper shaft screw hole, and the roller frame body 900 below the left sliding roller mounting opening corresponding to the position of the upper shaft screw hole is provided with a lower shaft blind hole. The left sliding roller shaft is fixedly installed in the upper shaft screw hole by threads. The left sliding roller wheel 904 is installed in the middle of the left sliding roller shaft, and the lower part of the left sliding roller shaft is fitted in the lower shaft blind hole. The right sliding roller wheel 905 is installed in the right sliding roller mounting opening through the right sliding roller shaft. The connection structure of the right sliding roller shaft and the left sliding roller shaft is the same.

[0106] Preferably, the lower part of the roller frame body 900 is provided with a hook frame hole; the bottom of the hook frame hole on the roller frame body 900 is provided with a hook frame retaining ring 907; the inside of the hook frame retaining ring forms a retaining ring vertical hole;

[0107] Hook body 906 includes:

[0108] The hook shank 908 has its top inserted into the vertical hole of the shackle and can rotate within it. The top of the hook shank is provided with a shank head 909, the outer diameter of which is larger than the inner diameter of the vertical hole of the shackle. The top of the hook shank is engaged with the hook frame shackle through the shank head.

[0109] The left hook is located at the bottom of the hook shank, and the left hook is lifted to the upper left.

[0110] The right hook is located at the bottom of the hook shank and is lifted upwards and to the right.

[0111] Preferably, there are no fewer than three hook bodies 906.

[0112] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A meat reefer loading and unloading lift characterized by, It comprises: a lifting frame; a lifting mechanism arranged at the bottom of the lifting frame, the bottom of the lifting mechanism being adapted to be fixed to the ground, the lifting end of the lifting mechanism being connected to the lifting frame; the lifting mechanism is used to push the lifting frame to make lifting movement; a column device arranged at the bottom of the lifting frame, the bottom of the column device being adapted to be fixed to the ground, the top end of the column device being connected to the lifting frame; the column device is used to provide guidance when the lifting frame makes lifting movement; a pushing oil cylinder arranged on the lifting frame; a pushing guide column device arranged on the lifting frame, the telescopic end of the pushing guide column device being able to make horizontal telescopic movement under the action of the pushing oil cylinder; a cantilever frame connected to the telescopic end of the pushing guide column device; a hook mechanism arranged below the cantilever frame.

2. The meat reefer loader lift of claim 1 wherein, The column device comprises: a column sleeve body, the bottom of the column sleeve body being adapted to be fixed to the ground; a column guide rod arranged in the column sleeve body and being able to make lifting movement; the top of the column guide rod being connected to the lifting frame; a vertical guide rail arranged on the side wall of the column guide rod; a guide groove sliding block arranged on the inner wall of the column sleeve body, the vertical guide rail being slidingly connected to the guide groove sliding block.

3. The meat refrigeration truck loading and unloading lifting machine according to claim 2, wherein: the cross section of the column guide rod is square; the vertical guide rail is four, arranged on the four side walls of the column guide rod respectively; the guide groove sliding block is four, matched with the four vertical guide rails respectively.

4. The meat reefer loader lift of claim 2 wherein, The column device further comprises: a column top seat plate arranged at the top end of the column guide rod, the column top seat plate being connected to the lifting frame; a column bottom plate arranged at the bottom end of the column sleeve body, the column bottom plate being able to be fixed to the ground through foundation bolts.

5. The meat reefer loader lift of claim 1 wherein, The lifting mechanism comprises: a cylinder sleeve bottom plate, the cylinder sleeve bottom plate being fixedly installed on the ground through foundation bolts; a lifting cylinder sleeve, the bottom end of the lifting cylinder sleeve being connected to the cylinder sleeve bottom plate; a lifting cylinder body arranged in the lifting cylinder sleeve; a lifting cylinder piston rod arranged in the lifting cylinder body; a lifting top plate hinged to the top end of the lifting cylinder piston rod; the lifting top plate being connected to the lifting frame.

6. The meat reefer loader lift of claim 1 wherein, The pushing guide column device comprises: a pushing guide sleeve arranged on the lifting frame; a pushing guide rod arranged in the pushing guide sleeve and being able to make horizontal telescopic movement, the pushing guide sleeve providing guidance for the horizontal telescopic movement of the pushing guide rod; the rear end of the pushing guide rod being hinged to the front end of the piston rod of the pushing oil cylinder; the front end of the pushing guide rod being connected to the cantilever frame.

7. The meat refrigeration truck loading and unloading lifting machine according to claim 1, wherein: the lifting frame is a square or rectangular frame; the middle part of the lifting frame is provided with a middle frame crosspiece, the middle frame crosspiece and the edge of the rear end of the lifting frame being provided with a middle frame left vertical bar and a middle frame right vertical bar; the pushing oil cylinder is arranged on a pushing cylinder frame; the two ends of the pushing cylinder frame are connected to the middle frame left vertical bar and the middle frame right vertical bar respectively; the upper end of the pushing cylinder frame is further connected to the middle frame left vertical bar and the middle frame right vertical bar respectively through a pushing frame left inclined rod and a pushing frame right inclined rod.

8. The meat reefer loader lift of claim 1 wherein, The hook mechanism comprises: A sliding bracket is arranged below the overhanging frame; the sliding bracket comprises an inner bracket and an outer bracket, and the inner bracket and the outer bracket are arranged in parallel; a roller bracket spacing is formed between the inner bracket and the outer bracket; a top surface of the inner bracket and a bottom surface of the overhanging frame form a roller installation groove; A supporting roller is rollably arranged in the roller installation groove; A roller bracket body is arranged in the roller bracket spacing; A roller shaft is horizontally arranged at an upper portion of the roller bracket body; end portions of the roller shaft are connected with the supporting roller; A left sliding roller is rotatably arranged at one side of the roller bracket body and located in the roller bracket spacing; the left sliding roller can roll along an inner wall of the inner bracket; A right sliding roller is rotatably arranged at the other side of the roller bracket body and located in the roller bracket spacing; the right sliding roller can roll along the inner wall of the inner bracket; A hook body is arranged at a lower portion of the roller bracket body.

9. The meat refrigeration truck loading and unloading lifting machine according to claim 8, characterized in that: the inner bracket is a U-shaped bracket welded by angle steels; the angle steels of the inner bracket comprise a first side wing plate connected with a second side wing plate in a vertical downward direction and a horizontal direction; the outer bracket is a U-shaped bracket welded by angle steels and arranged around the inner bracket; the angle steels of the outer bracket comprise a third side wing plate connected with a fourth side wing plate in a vertical downward direction and a horizontal direction; the roller bracket spacing is formed between the first side wing plate and the third side wing plate; the roller installation groove is formed between the second side wing plate and the bottom surface of the overhanging frame.

10. The meat refrigeration truck loading and unloading lifting machine according to claim 8, characterized in that: a lower portion of the roller bracket body is provided with a hook bracket hole; a hook bracket snap ring is arranged at the bottom of the hook bracket hole on the roller bracket body; an inner portion of the hook bracket snap ring forms a snap ring vertical hole; the hook body comprises: a hook handle rod, a top portion of the hook handle rod penetrates into the snap ring vertical hole and can rotate in the snap ring vertical hole; the top portion of the hook handle rod is provided with a handle head, an outer diameter of the handle head is larger than an inner diameter of the snap ring vertical hole, and the top portion of the hook handle rod is clamped above the hook bracket snap ring through the handle head; a left hook is arranged at a bottom portion of the hook handle rod, and the left hook is raised upward to the left; a right hook is arranged at the bottom portion of the hook handle rod, and the right hook is raised upward to the right.

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