Screw rod lifting vehicle-mounted carrying tractor

Abstract

The utility model discloses a lead screw lifting vehicle-mounted carrying tractor which comprises a tractor body, an extension mechanism is arranged on one side of the tractor body, and an extension frame is fixed to the surface of the tractor body. The extension mechanism comprises a mounting frame, the mounting frame is fixed to the surface of the extension frame, a bottom plate is fixed to the surface of the mounting frame, a lead screw is rotatably connected to the surface of the bottom plate, the top end of the lead screw is rotatably connected to the surface of the mounting frame, a sliding table is in threaded connection to the surface of the lead screw, and a mounting table is fixed to the surface of the sliding table; two L-shaped shells are fixed to the surface of the mounting table, hinges are fixed to the surfaces of the L-shaped shells, extending shells are fixed to the surfaces of the hinges, and connecting plates are fixed to the surfaces of the L-shaped shells. According to the utility model, by designing the liftable traction points, the tractor can be matched with vehicles to be dragged at more heights, and meanwhile, the functions can be expanded, so that the tractor can realize the cargo taking and placing functions of a forklift, and the tractor has better practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of transport equipment, in particular to a screw rod lifting and transporting tractor. Background Art

[0002] A truck-mounted transport tractor is a vehicle specifically designed to connect to a loaded cart. It offers high maneuverability and flexibility, making it suitable for a variety of work environments, including but not limited to factory interiors, warehouses, and construction sites. These vehicles are designed to improve work efficiency and reduce labor burden, especially when heavy or bulky items need to be moved frequently.

[0003] The current on-board transport tractor only has a towing function, and the towing point connection position is fixed, which has poor adaptability. It is easy to have difficulty matching when dealing with vehicles to be towed of different heights. In addition, during the on-board transport process, a forklift is usually required to pick up and place the goods, resulting in poor practicality of the device and difficulty in meeting usage needs. Utility Model Content

[0004] The purpose of the utility model is to provide a screw-rod lifting vehicle-mounted transport tractor. By designing a liftable traction point, it can match vehicles to be towed of more heights. At the same time, the function can be expanded so that the tractor can realize the cargo picking and placing function of a forklift, making the tractor more practical.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a screw-lifting vehicle-mounted transport tractor, comprising a tractor body, an expansion mechanism being provided on one side of the tractor body, and an extension frame being fixed on the surface of the tractor body;

[0006] The expansion mechanism includes a mounting frame, which is fixed to the surface of the extension frame, a base plate is fixed to the surface of the mounting frame, a screw rod is rotatably connected to the surface of the base plate, the top of the screw rod is rotatably connected to the surface of the mounting frame, a slide is threadedly connected to the surface of the screw rod, a mounting table is fixed to the surface of the slide, two L-shaped shells are fixed to the surface of the mounting table, a hinge is fixed to the surface of the L-shaped shell, an extension shell is fixed to the surface of the hinge, a connecting plate is fixed to the surface of the L-shaped shell, a clamping frame is fixed to the surface of the connecting plate, a pin rod slides through the surface of the clamping frame, and a driving structure is installed on the surface of the base plate.

[0007] As a preferred screw lifting and transporting tractor of the utility model, the bottom plate surface driving structure includes a protective shell, the protective shell is fixedly connected to the bottom plate surface, a driving motor is fixed on the top of the protective shell, the output shaft of the driving motor passes through the protective shell and is fixed with a first gear, the surface of the first gear is meshed with a second gear, and the second gear is fixed on the lower side of the screw surface.

[0008] As a preferred embodiment of the screw-rod lifting and transporting tractor of the present invention, the first gear is smaller than the second gear.

[0009] As a preferred embodiment of the screw-rod lifting and transporting tractor of the present invention, a plurality of reinforcing ribs are fixed to the surface of the mounting platform, and the surface of the reinforcing ribs is fixedly connected to the inner wall of the L-shaped shell.

[0010] As a preferred embodiment of the screw rod lifting and transporting tractor of the present invention, the surface of the pin rod is provided with a thread, and the surface of the pin rod is threadedly connected with a fastening nut.

[0011] As a preferred screw lifting and transporting tractor of the utility model, a mounting sleeve is fixed to the inner wall of the extension shell, a screw is threaded through the surface of the mounting sleeve, a positioning hole for cooperating with the screw is opened on the surface of the L-shaped shell, and a through hole for cooperating with the screw is opened on the surface of the extension shell.

[0012] As a preferred screw-rod lifting and transporting tractor of the present invention, a slide rail is fixed to the surface of the mounting frame, a slider is slidably connected to the surface of the slide rail, and the surface of the slider is fixedly connected to the surface of the mounting platform.

[0013] As a preferred embodiment of the screw-rod lifting and transporting tractor of the present invention, the fastening nut is a butterfly nut.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] When the present invention is used for towing, the extension shell can be rotated to below the surface of the L-shaped shell first, so that the extension shell will not collide with the vehicle to be towed, and the device can save more space when stored. When connecting with other vehicles, the pin rod is first taken out from the inside of the clamping frame, and then the hook on the surface of the vehicle to be towed is placed inside the clamping frame, and then the pin rod is reinserted to complete the connection. When the height of the clamping frame does not match the vehicle to be connected, the drive structure can drive the screw rod to rotate, so that the slide can be affected by the thread to drive the mounting table to move up and down, thereby making the height position of the clamping frame variable, so as to adapt to more towing requirements. When the towing is completed and the cargo on the towing vehicle needs to be removed, the extension shell is rotated downward after the towing state is released, so that the L-shaped shell can drive the extension shell to move. At this time, the combination of the L-shaped shell and the extension shell can form a forklift front fork, thereby meeting various usage requirements and making the present device more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another perspective;

[0018] Figure 3 It is a structural diagram of the expansion mechanism in the utility model;

[0019] Figure 4 It is a partial structural diagram of the expansion mechanism in the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the expansion mechanism after partial operation in the utility model.

[0021] In the figure: 1. tractor body; 2. extension mechanism; 201. mounting frame; 202. bottom plate; 203. screw; 204. slide; 205. mounting platform; 206. L-shaped shell; 207. hinge; 208. extension shell; 209. connecting plate; 210. clamping frame; 211. pin; 212. fastening nut; 213. reinforcing rib; 214. screw; 215. mounting sleeve; 216. positioning hole; 217. protective shell; 218. drive motor; 219. first gear; 220. second gear; 221. slide rail; 222. slider; 3. extension frame. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 5 A screw-type lifting and transporting tractor comprises a tractor body 1, an expansion mechanism 2 is provided on one side of the tractor body 1, an extension frame 3 is fixed on the surface of the tractor body 1, and a universal wheel is installed at the bottom of the extension frame 3;

[0023] The expansion mechanism 2 includes a mounting frame 201, which is fixed to the surface of the extension frame 3. A base plate 202 is fixed to the surface of the mounting frame 201. A screw rod 203 is rotatably connected to the surface of the base plate 202. The top of the screw rod 203 is rotatably connected to the surface of the mounting frame 201. A slide 204 is threadedly connected to the surface of the screw rod 203. A mounting platform 205 is fixed to the surface of the slide 204. Two L-shaped shells 206 are fixed to the surface of the L-shaped shell 206. A hinge 207 is fixed to the surface of the hinge 207. An extension shell 208 is fixed to the surface of the hinge 207. A connecting plate 209 is fixed to the surface of the L-shaped shell 206. A clamping frame 210 is fixed to the surface of the connecting plate 209. A pin 211 slides through the surface of the clamping frame 210. A driving structure is installed on the surface of the base plate 202.

[0024] When towing, the extension shell 208 can be rotated to below the surface of the L-shaped shell 206 so that the extension shell 208 will not collide with the vehicle to be towed, and the device can be stored in a more space-saving manner. When connecting with other vehicles, the pin rod 211 is first taken out from the inside of the clamping frame 210, and then the hook on the surface of the towed vehicle is placed inside the clamping frame 210, and then the pin rod 211 is reinserted to complete the connection. When the height of the clamping frame 210 does not match the vehicle to be connected, the driving structure can be used to drive the screw rod 211 to connect the vehicle. 03 rotates, so that the slide 204 can be affected by the thread to drive the mounting platform 205 to move up and down, thereby making the height position of the clamping frame 210 changeable, so as to adapt to more traction needs. When the traction is completed and the cargo on the traction vehicle needs to be removed, after the traction state is released, the extension shell 208 is rotated downward, so that the L-shaped shell 206 can drive the extension shell 208 to move. At this time, the combination of the L-shaped shell 206 and the extension shell 208 can form a forklift front fork, thereby meeting various usage needs and making the practicality of the device better.

[0025] Furthermore, the driving structure on the surface of the bottom plate 202 includes a protective shell 217, which is fixedly connected to the surface of the bottom plate 202. A driving motor 218 is fixed to the top of the protective shell 217. The output shaft of the driving motor 218 passes through the protective shell 217 and is fixed with a first gear 219. The surface of the first gear 219 is meshed with a second gear 220, and the second gear 220 is fixed to the lower side of the surface of the screw rod 203.

[0026] The protective shell 217 can protect employees and prevent their clothing from being caught in the first gear 219. When the drive motor 218 is started, it will drive the first gear 219 to rotate, and the first gear 219 can drive the second gear 220 to rotate at the same time, so that the screw rod 203 can rotate.

[0027] Furthermore, the first gear 219 is smaller than the second gear 220;

[0028] This design can achieve the effects of deceleration and torque increase, making it easier for the drive motor 218 to drive the screw rod 203 to rotate.

[0029] Furthermore, a plurality of reinforcing ribs 213 are fixed to the surface of the mounting platform 205, and the surface of the reinforcing ribs 213 is fixedly connected to the inner wall of the L-shaped shell 206;

[0030] The reinforcing ribs 213 can provide a more stable supporting effect for the L-shaped shell 206 and the extension shell 208 , thereby improving the bearing capacity of the L-shaped shell 206 and the extension shell 208 .

[0031] Furthermore, the surface of the pin rod 211 is provided with a thread, and the surface of the pin rod 211 is threadedly connected with a fastening nut 212;

[0032] After the pin 211 passes through the clamping frame 210 , the fastening nut 212 can be installed below the surface of the pin 211 to prevent the pin 211 from falling off from the inside of the clamping frame 210 due to vibration during the movement of the tractor body 1 .

[0033] Furthermore, a mounting sleeve 215 is fixed to the inner wall of the extension shell 208, and a screw 214 is threaded through the surface of the mounting sleeve 215. A positioning hole 216 for use with the screw 214 is opened on the surface of the L-shaped shell 206, and a through hole is opened on the surface of the extension shell 208 for the screw 214 to pass through.

[0034] After the extension shell 208 rotates upward, the screw rod 214 can be rotated to pass through the through hole and enter the positioning hole 216, so that the extension shell 208 can be fixed on the surface of the L-shaped shell 206 to prevent the extension shell 208 from automatically rotating when the tractor body 1 moves.

[0035] Furthermore, a slide rail 221 is fixed to the surface of the mounting frame 201, a slider 222 is slidably connected to the surface of the slide rail 221, and the surface of the slider 222 is fixedly connected to the surface of the mounting platform 205;

[0036] The mounting platform 205 can drive the slider 222 to slide on the surface of the slide rail 221, so that the mounting platform 205 can be linearly guided to prevent the mounting platform 205 from moving back and forth when moving.

[0037] Furthermore, the fastening nut 212 is a butterfly nut;

[0038] By selecting a butterfly nut as the fastening nut 212 , an operator can rotate the fastening nut 212 without the aid of tools, thereby making it easier to disassemble and assemble the pin rod 211 .

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screw-rod lifting and transporting tractor, comprising a tractor body (1), characterized in that: An expansion mechanism (2) is provided on one side of the tractor body (1), and an extension frame (3) is fixed on the surface of the tractor body (1); The expansion mechanism (2) includes a mounting frame (201), the mounting frame (201) is fixed to the surface of the extension frame (3), a bottom plate (202) is fixed to the surface of the mounting frame (201), a screw rod (203) is rotatably connected to the surface of the bottom plate (202), the top end of the screw rod (203) is rotatably connected to the surface of the mounting frame (201), a slide (204) is threadedly connected to the surface of the screw rod (203), and a mounting platform (205) is fixed to the surface of the slide (204). Two L-shaped shells (206) are fixed on the surface of the mounting platform (205), a hinge (207) is fixed on the surface of the L-shaped shell (206), an extension shell (208) is fixed on the surface of the hinge (207), a connecting plate (209) is fixed on the surface of the L-shaped shell (206), a clamping frame (210) is fixed on the surface of the connecting plate (209), a pin rod (211) is slidably passed through the surface of the clamping frame (210), and a driving structure is installed on the surface of the base plate (202).

2. The screw-rod lifting and transporting tractor according to claim 1, characterized in that: The bottom plate (202) surface driving structure comprises a protective shell (217), the protective shell (217) is fixedly connected to the surface of the bottom plate (202), a driving motor (218) is fixed on the top of the protective shell (217), an output shaft of the driving motor (218) passes through the protective shell (217) and is fixed with a first gear (219), a second gear (220) is meshed on the surface of the first gear (219), and the second gear (220) is fixed to the lower side of the surface of the screw rod (203).

3. The screw-rod lifting and transporting tractor according to claim 2, characterized in that: The first gear (219) is smaller than the second gear (220).

4. The screw-rod lifting and transporting tractor according to claim 1, characterized in that: A plurality of reinforcing ribs (213) are fixed on the surface of the mounting platform (205), and the surface of the reinforcing ribs (213) is fixedly connected to the inner wall of the L-shaped shell (206).

5. The screw-rod lifting and transporting tractor according to claim 1, characterized in that: The surface of the pin rod (211) is provided with a thread, and the surface of the pin rod (211) is threadedly connected with a fastening nut (212).

6. The screw-rod lifting and transporting tractor according to claim 1, characterized in that: A mounting sleeve (215) is fixed to the inner wall of the extension shell (208), a screw rod (214) is threaded through the surface of the mounting sleeve (215), a positioning hole (216) for matching the screw rod (214) is opened on the surface of the L-shaped shell (206), and a through hole for matching the screw rod (214) is opened on the surface of the extension shell (208).

7. The screw-rod lifting and transporting tractor according to claim 1, characterized in that: A slide rail (221) is fixed on the surface of the mounting frame (201), a slider (222) is slidably connected to the surface of the slide rail (221), and a surface of the slider (222) is fixedly connected to the surface of the mounting platform (205).

8. The screw-rod lifting and transporting tractor according to claim 5, characterized in that: The fastening nut (212) is a butterfly nut.

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