Automatic guided vehicle suitable for intelligent warehousing system

Abstract

The invention discloses an automatic guide vehicle suitable for an intelligent warehousing system, which is characterized in that a fixed storage box is mounted in the middle of one end of a guide forklift, a positioning transverse plate is mounted at the bottom in the fixed storage box, a driving motor is mounted at the bottom end of the fixed storage box, and rotating cylinders are symmetrically and rotationally mounted at two ends of the positioning transverse plate; according to the intelligent guide display screen for the warehousing system, delivery and pickup paths in the warehousing system can be displayed through the intelligent guide display screen, guidance is provided for a worker to drive a vehicle, the working efficiency of finding a goods storage place is effectively improved, and the intelligent guide display screen can be used for displaying the delivery and pickup paths in the warehousing system. The intelligent guide display screen can directly and efficiently walk to the corresponding position according to guidance, meanwhile, the position of the intelligent guide display screen is adjusted, the intelligent guide display screen can be conveniently hidden and stored in the fixed storage box when the intelligent guide display screen is idle, the intelligent guide display screen is hidden and protected, and the use safety of the intelligent guide display screen is improved.

Description

Technical Field

[0001] This invention relates to the field of warehouse forklift technology, specifically to an automated guided vehicle (AGV) suitable for intelligent warehousing systems. Background Technology

[0002] The biggest trend in modern logistics is networking and intelligence. Within manufacturing enterprises, modern warehousing and distribution centers are often integrated with the enterprise's production system. As part of the production system, the warehousing system plays a very important role in enterprise production management. Therefore, the development of warehousing technology is not isolated from the company's business. Integration and cooperation with other links are more conducive to the development of the warehousing industry. Intelligent warehousing is a link in the logistics process. The application of intelligent warehousing ensures the speed and accuracy of data input in all aspects of warehouse management, ensuring that enterprises can grasp the real data of inventory in a timely and accurate manner, and reasonably maintain and control enterprise inventory. Through scientific coding, it is also convenient to manage the batch, shelf life, etc. of inventory goods, and can keep track of the current location of all inventory goods in a timely manner, which is conducive to improving the efficiency of warehouse management. However, the logistics freight vehicles currently used in smart warehousing lack intelligent guidance equipment. When driving the vehicle to the corresponding location, time is easily wasted on finding goods and routes, which reduces work efficiency. Therefore, this invention provides an automated guided vehicle suitable for smart warehousing systems to meet people's needs. Summary of the Invention

[0003] This invention provides an automated guided vehicle (AGV) suitable for intelligent warehousing systems, which can effectively solve the problem mentioned in the background art that logistics freight vehicles used in intelligent warehousing lack intelligent guidance equipment, and when driving the vehicle to the corresponding location, they easily waste time on finding goods and routes, thus reducing work efficiency.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automated guided vehicle (AGV) suitable for intelligent warehousing systems, including a guide forklift, a fork carriage installed at one end of the guide forklift, a driver's seat installed on the top of one end of the guide forklift, and a safety intelligent guidance mechanism installed in the middle of one end of the guide forklift; The safe and intelligent guidance mechanism includes a fixed storage box; A fixed storage box is installed at the middle of one end of the guide forklift. A positioning horizontal plate is installed at the bottom inside the fixed storage box. A drive motor is installed at the bottom of the fixed storage box. Rotating cylinders are symmetrically rotated at both ends of the positioning horizontal plate. Drive sprockets are fixedly connected to the bottom ends of the two rotating cylinders. A transmission chain is sleeved on the surface of the two drive sprockets. A positioning frame is installed on the top inside the fixed storage box. Adjusting screws are symmetrically installed at both ends of the positioning frame. A piston lifting plate is movably installed inside the fixed storage box. A mounting base is installed on the top of the piston lifting plate. A lifting frame is installed on the top of the mounting base. An intelligent guidance display screen is installed at an angle in the middle of the lifting frame. A sealing and protective plate is installed on the top of the lifting frame.

[0005] According to the above technical solution, the output shaft of the drive motor is connected to the bottom end of a rotating cylinder, and the two drive sprockets are connected by a transmission chain.

[0006] According to the above technical solution, the bottom ends of the two adjusting screws are respectively connected to the top ends of the two rotating cylinders, and the two adjusting screws are respectively movably inserted through both ends of the piston lifting plate. The adjusting screws and the piston lifting plate are connected by threads.

[0007] According to the above technical solution, the length and width of the sealing and protective plate are the same as the length and width of the inner wall of the fixed storage box, and the height of the sealing and protective plate is the same as the distance between the positioning frame and the top of the fixed storage box.

[0008] According to the above technical solution, an inclined connecting seat is installed at the middle of one bottom end of the sealing protective plate, a recognition camera is installed at the bottom of the inclined connecting seat, and a voice broadcaster is installed at the bottom of the sealing protective plate on one side of the recognition camera.

[0009] According to the above technical solution, the recognition camera is connected to an external controller, and the recognition camera and the center of the driver's seat are located on the same vertical plane.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use. 1. Equipped with a safe and intelligent guidance mechanism, the intelligent guidance display screen can show the delivery and pickup routes in the warehousing system, providing guidance for staff driving vehicles and effectively improving the efficiency of finding the storage location of goods. They can walk directly and efficiently to the corresponding location according to the guidance. Simultaneously, the coordinated operation of the drive motor and transmission chain enables the two drive sprockets and two adjusting screws to rotate synchronously, adjusting the rise and fall of the piston lifting plate and lifting frame. This allows for adjustment of the position of the intelligent guidance display screen, making it easy to hide and store it inside a fixed storage box when not in use. This conceals and protects the intelligent guidance display screen from damage caused by foreign objects or dust accumulation due to prolonged exposure, thus improving its safety.

[0011] 2. Use a sealing and protective plate to seal the top of the fixed storage box, so that the intelligent guidance display screen is in a sealed environment when it is hidden and stored, preventing foreign objects from entering the fixed storage box and protecting the top of the intelligent guidance display screen; At the same time, the recognition camera takes pictures of the driver and collects information to ensure that the vehicle will only start when the driver is in a safe driving condition, which improves the safety of vehicle use. The voice broadcaster will directly broadcast the intelligent guidance status to the driver, making operation more convenient and faster.

[0012] 3. A safety monitoring mechanism is installed. The plate descends as the driver sits on the driver's seat, controlling the start switch of the push-button control switch. This provides a safety monitoring function for vehicle driving guidance, ensuring that the driver can only start the vehicle and drive the motor while seated in the driver's seat. Meanwhile, the fixed sleeve and the movable pressure rod work together to guide and stabilize the up and down movement of the mounting plate. The compression buffer pad cushions the mounting plate and the movable pressure rod, relieving the pressure on the mounting plate as it descends. This makes the force applied to the push-button control switch gentler and prevents direct impact from damaging the push-button control switch.

[0013] 4. The U-shaped positioning frame and locking bolts work together to position and lock the splicing long plate during installation. The splicing long plate is connected to the driver's seat through the mounting holes, which improves the connection strength between the driver's seat and the mounting plate and prevents the driver's seat from tilting or slipping. The installation method of positioning and splicing the splicing long plate is simple and provides great convenience for disassembling and installing the driver's seat.

[0014] In summary, by combining a safe and intelligent guidance mechanism with a safety monitoring mechanism, the system can collect and identify driver information during intelligent guidance, ensuring that the driver is focused on driving and improving driving safety. At the same time, the push-button control switch monitors the driver's correct sitting and driving status, improving the safety of controlled driving. This multi-layered safety monitoring of the overall driving guidance significantly reduces the occurrence of safety accidents. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the intelligent guidance display screen of the present invention; Figure 3 This is a schematic diagram of the installation structure of the recognition camera of the present invention; Figure 4 This is a schematic diagram of the mounting structure of the mounting plate of the present invention; Figure 5 This is a structural schematic diagram of the safe intelligent guidance mechanism of the present invention; Figure 6 This is a schematic diagram of the installation structure of the drive sprocket of the present invention; Figure 7 This is a schematic diagram of the installation structure of the splicing long plate of the present invention; Figure 8 This is a schematic diagram of the safety monitoring mechanism of the present invention; The diagram shows: 1. Guided forklift; 2. Fork carriage; 3. Driver's seat; 4. Safe and intelligent guidance mechanism; 401. Fixed storage box; 402. Positioning crossbar; 403. Drive motor; 404. Rotating cylinder; 405. Drive sprocket; 406. Transmission chain; 407. Positioning frame; 408. Adjusting screw; 409. Piston lifting plate; 410. Mounting base; 411. Lifting frame; 412. Intelligent guidance display screen; 413. Sealing and protective plate; 414. Tilt connecting seat; 415. Recognition camera; 416. Voice broadcaster; 5. Safety monitoring mechanism; 501. Mounting frame; 502. Fixing sleeve; 503. Compression buffer pad; 504. Movable pressure rod; 505. Press-type control switch; 506. Mounting plate; 507. Protective pad; 508. U-shaped positioning frame; 509. Mounting screw hole; 510. Mounting through hole; 511. Splicing long plate; 512. Locking bolt. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0018] Example: Figure 1-8 As shown, the present invention provides a technical solution, an automated guided vehicle suitable for intelligent warehousing systems, including a guide forklift 1, a fork carriage 2 installed at one end of the guide forklift 1, a driver's seat 3 installed on the top of one end of the guide forklift 1, and a safety intelligent guidance mechanism 4 installed in the middle of one end of the guide forklift 1. The safety intelligent guidance mechanism 4 includes a fixed storage box 401, a positioning horizontal plate 402, a drive motor 403, a rotating cylinder 404, a drive sprocket 405, a transmission chain 406, a positioning frame 407, an adjusting screw 408, a piston lifting plate 409, a mounting base 410, a lifting frame 411, an intelligent guidance display screen 412, a sealing and protective plate 413, an inclined connecting base 414, a recognition camera 415, and a voice broadcaster 416; A fixed storage box 401 is installed in the middle of one end of the guide forklift 1. A positioning plate 402 is installed at the bottom inside the fixed storage box 401. A drive motor 403 is installed at the bottom of the fixed storage box 401. Rotating cylinders 404 are symmetrically rotated at both ends of the positioning plate 402. Drive sprockets 405 are fixedly connected to the bottom ends of the two rotating cylinders 404. A transmission chain 406 is sleeved on the surface of the two drive sprockets 405. The output shaft of the drive motor 403 is connected to the bottom end of one of the rotating cylinders 404. The two drive sprockets 405 are connected by the transmission chain 406. A positioning frame 407 is installed on the top of the interior of the fixed storage box 401. Adjusting screws 408 are symmetrically installed at both ends of the positioning frame 407. A piston lifting plate 409 is movably installed inside the fixed storage box 401. The bottom ends of the two adjusting screws 408 are respectively connected to the top ends of two rotating cylinders 404. The two adjusting screws 408 movably pass through both ends of the piston lifting plate 409. The adjusting screws 408 and the piston lifting plate 409 are connected by threads. A mounting base 410 is installed on the top of the piston lifting plate 409, and a lifting frame 411 is installed on the top of the mounting base 410. A smart guidance display screen 412 is installed at an angle in the middle of the frame 411, and a sealing protective plate 413 is installed at the top of the lifting frame 411. The length and width of the sealing protective plate 413 are the same as the length and width of the inner wall of the fixed storage box 401, and the height of the sealing protective plate 413 is the same as the distance between the positioning frame 407 and the top of the fixed storage box 401. The smart guidance display screen 412 can display the delivery and picking routes in the warehousing system, provide guidance for staff to drive vehicles, effectively improve the work efficiency of finding the storage location of goods, and allow them to walk directly and efficiently to the corresponding location according to the guidance. Simultaneously, the cooperation between the drive motor 403 and the transmission chain 406 enables the two drive sprockets 405 and the two adjusting screws 408 to rotate synchronously, thereby adjusting the rise and fall of the piston lifting plate 409 and the lifting frame 411. This adjusts the position of the intelligent guidance display screen 412, making it easy to hide and store it inside the fixed storage box 401 when not in use. This provides concealment and protection for the intelligent guidance display screen 412, preventing it from being damaged by foreign objects or affected by dust accumulation due to prolonged exposure, thus improving the safety of the intelligent guidance display screen 412. The top of the fixed storage box 401 is sealed by the sealing and protective plate 413, so that the intelligent guidance display screen 412 is in a sealed environment when it is hidden and stored, preventing foreign objects from entering the fixed storage box 401 and protecting the top of the intelligent guidance display screen 412. An inclined connecting seat 414 is installed at the middle of one bottom end of the sealing protective plate 413. A recognition camera 415 is installed at the bottom of the inclined connecting seat 414. A voice broadcaster 416 is installed at the bottom of the sealing protective plate 413 on one side of the recognition camera 415. The recognition camera 415 is connected to an external controller. The recognition camera 415 and the middle of the driver's seat 3 are on the same vertical plane. At the same time, the recognition camera 415 is used to photograph and collect information from the driver to ensure that the vehicle will only start when the driver is in a safe driving condition, which improves the safety of vehicle use. The voice broadcaster 416 will directly broadcast the intelligent guidance status to the driver, making operation more convenient and faster. A safety monitoring mechanism 5 is installed on the top of one end of the guide forklift 1; The safety monitoring mechanism 5 includes a mounting frame 501, a fixing sleeve 502, a compression buffer pad 503, a movable pressure rod 504, a push-button control switch 505, a mounting plate 506, a protective soft pad 507, a U-shaped positioning frame 508, mounting screw holes 509, mounting through holes 510, a splicing long plate 511, and locking bolts 512. A mounting frame 501 is embedded at the top of one end of the guide forklift 1, corresponding to the position of the driver's seat 3. A fixing sleeve 502 is installed at each of the four corners inside the mounting frame 501. A compression buffer pad 503 is installed at the bottom of each of the four fixing sleeves 502. A push-type control switch 505 is installed in the middle of the bottom of the mounting frame 501. Four movable pressure rods 504 are respectively movably embedded inside the four fixing sleeves 502, and the bottom of the movable pressure rods 504 is close to the top of the compression buffer pad 503. A mounting plate 506 is embedded in the top of the mounting frame 501. Movable pressure rods 504 are fixedly connected to the four corners of the bottom of the mounting plate 506. A protective soft pad 507 is installed in the middle of the bottom of the mounting plate 506. The protective soft pad 507 is located directly above the push-button control switch 505. The bottom of the protective soft pad 507 is in contact with the top of the push-button control switch 505. The push-button control switch 505 is connected to the drive motor 403 through an external controller. The mounting plate 506 descends as the driver's seat 3 is pressed down by the driver, which controls the start switch of the push-button control switch 505. This plays a safety monitoring role in guiding the driving of the vehicle and ensuring that the driver can only start the vehicle and drive motor 403 while sitting in the driver's seat 3. Meanwhile, the fixed sleeve 502 and the movable pressure rod 504 work together to guide and stabilize the up and down movement of the mounting plate 506. The compression buffer pad 503 buffers the mounting plate 506 and the movable pressure rod 504, relieving the pressure on the mounting plate 506 as it falls, making the force on the push-button control switch 505 more gentle and preventing direct impact from easily damaging the push-button control switch 505. U-shaped positioning frames 508 are symmetrically installed at both ends of the top of the mounting plate 506. Mounting screw holes 509 are symmetrically opened at the bottom of each of the two U-shaped positioning frames 508. A through-hole 510 is opened through the bottom of the driver's seat 3. A splicing long plate 511 is embedded inside the through-hole 510. Locking bolts 512 are symmetrically installed at both ends of the splicing long plate 511. The two ends of the splicing long plate 511 are respectively embedded inside the two U-shaped positioning frames 508. The positions of the locking bolts 512 and the mounting screw holes 509 correspond to each other. The bottom of the driver's seat 3 is tightly attached to the top of the mounting plate 506. The U-shaped positioning frame 508 and the locking bolt 512 work together to position and lock the splicing long plate 511. The splicing long plate 511 is connected to the driver's seat 3 through the mounting hole 510, which improves the connection strength between the driver's seat 3 and the mounting plate 506 and prevents the driver's seat 3 from tilting or slipping. The installation method of positioning and splicing the splicing long plate 511 is simple and provides great convenience for disassembling and installing the driver's seat 3.

[0019] The working principle and usage process of this invention are as follows: First, a splicing long plate 511 is inserted into the mounting hole 510 at the bottom of the driver's seat 3, and its two ends are aligned with the two U-shaped positioning frames 508 on the top of the mounting plate 506. The splicing long plate 511 and the U-shaped positioning frames 508 are locked and fixed using locking bolts 512, so that the driver's seat 3 is fixed on the top of the mounting plate 506. When the operator sits on the driver's seat 3, he controls the vehicle. The pressure of the operator sitting down will act downward on the mounting plate 506, pressing it down. The fixing sleeve 502 plays a guiding and stabilizing role for the movable pressure rod 504, so that the movable pressure rod 504 can squeeze the compression buffer pad 503. The compression buffer pad 503 buffers the pressure of the operator sitting down, so that the mounting plate 506 can gently touch the push-button control switch 505, transmit the signal outward and play a control role, indicating that the driver is in position on the vehicle, and transmit the start signal to the drive motor 403 through the external controller. Then, the drive motor 403 starts, driving the rotating cylinder 404 to rotate. The two drive sprockets 405 are connected by the transmission chain 406, so that the two rotating cylinders 404 and the two adjusting screws 408 rotate synchronously. The positioning plate 402 and the positioning frame 407 respectively position and stabilize the rotating cylinder 404 and the adjusting screw 408, making the rotation of the adjusting screw 408 more stable. This drives the piston lifting plate 409 to move upward inside the fixed storage box 401, and adjusts the height of the lifting frame 411 and the intelligent guide display screen 412. Until the mounting base 410 is in contact with the positioning frame 407, the lifting frame 411 and the intelligent guidance display screen 412 are all pushed out of the fixed storage box 401. Depending on the location where the transported goods need to be placed or the need to pick up goods from a specific location, the location is transmitted to the intelligent guidance display screen 412 through the external intelligent system. The intelligent guidance display screen 412 will then display and guide the route. The voice broadcaster 416 will broadcast the guidance, and the recognition camera 415 will face the driver to capture and collect information about the driver's condition and transmit it to the external control system for comparison and analysis to ensure that the driver is in a normal driving state during vehicle use. After the delivery or pickup process is completed, if there is a long period of idle time and no need to drive the vehicle, the staff can start the drive motor 403 to drive the two rotating cylinders 404 and the adjusting screw 408 to rotate in opposite directions. This will cause the piston lifting plate 409 and the lifting frame 411 to descend, so that the intelligent guidance display screen 412 is gradually hidden and stored inside the fixed storage box 401 until the sealing protective plate 413 is embedded in the top of the fixed storage box 401. The bottom end of the sealing protective plate 413 is close to the positioning frame 407, and its top end is flush with the top of the fixed storage box 401. This ensures that the intelligent guidance display screen 412 is safely stored in a sealed environment, preventing it from being damaged by foreign objects due to prolonged exposure to the external environment.

[0020] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated guided vehicle (AGV) for intelligent warehousing systems, comprising a guided forklift (1), characterized in that: One end of the guide forklift (1) is equipped with a fork carriage (2), a driver's seat (3) is installed on the top of one end of the guide forklift (1), and a safety intelligent guidance mechanism (4) is installed in the middle of one end of the guide forklift (1). The safety intelligent guidance mechanism (4) includes a fixed storage box (401). A fixed storage box (401) is installed in the middle of one end of the guide forklift (1). A positioning plate (402) is installed at the bottom inside the fixed storage box (401). A drive motor (403) is installed at the bottom of the fixed storage box (401). Rotating cylinders (404) are symmetrically rotated at both ends of the positioning plate (402). Drive sprockets (405) are fixedly connected to the bottom ends of the two rotating cylinders (404). A transmission chain (406) is sleeved on the surface of the two drive sprockets (405). A positioning frame (407) is installed on the top inside the fixed storage box (401). Adjusting screws (408) are symmetrically installed at both ends of the positioning frame (407). A piston lifting plate (409) is movably installed inside the fixed storage box (401). A mounting base (410) is installed on the top of the piston lifting plate (409). A lifting frame (411) is installed on the top of the mounting base (410). An intelligent guidance display screen (412) is installed at an angle in the middle of the lifting frame (411). A sealing protective plate (413) is installed on the top of the lifting frame (411).

2. The automated guided vehicle (AGV) for intelligent warehousing systems according to claim 1, characterized in that, The output shaft of the drive motor (403) is connected to the bottom end of a rotating cylinder (404), and the two drive sprockets (405) are connected by a transmission chain (406).

3. An automated guided vehicle (AGV) for intelligent warehousing systems according to claim 1, characterized in that, The bottom ends of the two adjusting screws (408) are respectively connected to the top ends of the two rotating cylinders (404). The two adjusting screws (408) are respectively movably inserted through both ends of the piston lifting plate (409). The adjusting screws (408) and the piston lifting plate (409) are connected by threads.

4. An automated guided vehicle (AGV) for intelligent warehousing systems according to claim 1, characterized in that, The length and width of the sealing protective plate (413) are the same as the length and width of the inner wall of the fixed storage box (401), and the height of the sealing protective plate (413) is the same as the distance between the positioning frame (407) and the top of the fixed storage box (401).

5. An automated guided vehicle (AGV) for intelligent warehousing systems according to claim 1, characterized in that, An inclined connecting seat (414) is installed at the middle of one bottom end of the sealing protective plate (413), a recognition camera (415) is installed at the bottom of the inclined connecting seat (414), and a voice broadcaster (416) is installed at the bottom of the sealing protective plate (413) on one side of the recognition camera (415).

6. An automated guided vehicle (AGV) for intelligent warehousing systems according to claim 5, characterized in that, The identification camera (415) is connected to an external controller, and the identification camera (415) and the middle part of the driver's seat (3) are located on the same vertical plane.

7. An automated guided vehicle (AGV) for intelligent warehousing systems according to claim 1, characterized in that, A safety monitoring mechanism (5) is provided on the top of one end of the guide forklift (1); The safety monitoring mechanism (5) includes a mounting frame (501); A mounting frame (501) is embedded at the top of one end of the guide forklift (1) at the position corresponding to the driver's seat (3). A fixing sleeve (502) is installed at each of the four corners inside the mounting frame (501). A compression buffer pad (503) is installed at the bottom of each of the four fixing sleeves (502). A push-button control switch (505) is installed at the center of the bottom of the mounting frame (501). The top of the mounting frame (501) is embedded with a mounting plate (506), and movable pressure rods (504) are fixedly connected at the four corners of the bottom of the mounting plate (506). A protective pad (507) is installed in the middle of the bottom of the mounting plate (506). The top of the mounting plate (506) is symmetrically equipped with U-shaped positioning frames (508) at both ends. The bottom of the two U-shaped positioning frames (508) is symmetrically provided with mounting screw holes (509). The bottom of the driver's seat (3) is provided with a through hole (510). A splicing long plate (511) is embedded in the inside of the mounting hole (510). Locking bolts (512) are symmetrically installed at both ends of the splicing long plate (511).

8. An automated guided vehicle (AGV) for intelligent warehousing systems according to claim 7, characterized in that, The four movable pressure rods (504) are respectively movably embedded inside the four fixed sleeves (502), with the bottom end of the movable pressure rod (504) closely attached to the top end of the compression buffer pad (503).

9. An automated guided vehicle (AGV) for an intelligent warehousing system according to claim 7, characterized in that, The protective pad (507) is located directly above the push-button control switch (505), and the bottom end of the protective pad (507) is in contact with the top end of the push-button control switch (505). The push-button control switch (505) is connected to the drive motor (403) through an external controller.

10. An automated guided vehicle (AGV) for an intelligent warehousing system according to claim 7, characterized in that, The two ends of the splicing long plate (511) are respectively embedded in the interior of two U-shaped positioning frames (508), the locking bolt (512) and the mounting screw hole (509) are respectively positioned, and the bottom end of the driver's seat (3) is close to the top of the mounting plate (506).

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