A lifting mast for GPS and communication antennas for port flat container trucks

Abstract

The application discloses a lifting mast of a GPS and communication antenna of a port flat container truck, which comprises a first layer lifting device, a second layer lifting device, a third layer lifting device, a fourth layer lifting device, a jacking plate, a motor and a speed reducer, the speed reducer is connected with the motor, the motor is connected with the first layer lifting device through a first driving pulley, the first layer lifting device is connected with the second layer lifting device through a first layer synchronous belt pressing plate, the second layer lifting device is connected with the third layer lifting device through a second layer synchronous belt pressing plate, the third layer lifting device is connected with the fourth layer lifting device through a third layer synchronous belt pressing plate, and the fourth layer lifting device is connected with the jacking plate through a fourth layer synchronous belt pressing plate. The original mast guiding mode and transmission structure are changed, the four layer lifting devices are sequentially matched, and then the mast is rapidly lifted; gear and rack are matched between the adjacent lifting devices to realize transmission, and it is ensured that no shaking occurs in the lifting process.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting masts, in particular to a lifting mast for a port flatbed container truck GPS and a communication antenna. Background Art

[0002] With the continuous development of communication technology, antennas play a significant role in port communications, and lifting masts used to erect antennas are indispensable. Existing lifting masts are mainly divided into two types: pneumatic and electric. Pneumatic masts have slow lifting and non-adjustable speeds, cannot be used in harsh environments, and may slip when at heights. Electric lifting masts generally use a screw nut or drive chain drive, and a key and keyway guidance method. This guidance method requires a large clearance, is not wear-resistant, has a fast transmission speed, and is prone to vibration. The GPS and communication antennas of flatbed container trucks at ports require high lifting frequencies and high speeds, and traditional lifting masts cannot meet these requirements. Summary of the Invention

[0003] Purpose of the invention: In view of the above problems, the purpose of the present invention is to provide a lifting mast for GPS and communication antenna of port flatbed container truck.

[0004] Technical solution: The present invention provides a lifting mast for GPS and communication antenna of a port flatbed container truck, comprising a first-layer lifting device, a second-layer lifting device, a third-layer lifting device, a fourth-layer lifting device, a lifting plate, a motor and a reducer. The reducer is connected to the motor, and the motor is connected to the first-layer lifting device through a first driving wheel. The first-layer lifting device is connected to the second-layer lifting device through a first-layer synchronous belt pressure plate, the second-layer lifting device is connected to the third-layer lifting device through a second-layer synchronous belt pressure plate, the third-layer lifting device is connected to the fourth-layer lifting device through a third-layer synchronous belt pressure plate, and the fourth-layer lifting device is connected to the lifting plate through a fourth-layer synchronous belt pressure plate.

[0005] Furthermore, the first-layer lifting device includes a first-layer supporting plate, two parallel first-layer guide rails are fixed on the inner surface of the first-layer supporting plate, a first-layer slider is connected to each first-layer guide rail, and a first-layer connecting block is fixed above the first-layer slider. A first-layer driving wheel and a first-layer passive wheel are also provided on the surface of the first-layer supporting plate, and the first-layer driving wheel and the first-layer passive wheel are connected and transmitted by a first-layer synchronous belt. A first-layer transmission rack is arranged parallel to the first-layer synchronous belt, and the two parallel first-layer guide rails are parallel to the first-layer transmission rack. The two first-layer guide rails are arranged on both sides of the first-layer transmission rack and the first-layer synchronous belt.

[0006] The transmission gear of the present invention is connected with the transmission gear of the present invention on the second supporting plate, and the transmission gear of the present invention is connected with the transmission gear of the present invention on the second supporting plate by the spring.

[0007] Furthermore, the outer surface of the second-layer support plate is fixedly connected to the upper surface of the first-layer connecting block, the first-layer synchronous belt is fixedly connected to the outer surface of the second-layer support plate through the first-layer synchronous belt pressure plate, the second-layer lifting device is driven by the first-layer synchronous belt and slides up and down along the first-layer guide rail, the second-layer transmission gear drives the second-layer pulley to rotate, and the second-layer driving wheel is driven to rotate through the second-layer transmission belt and the second-layer transmission pulley.

[0008] Furthermore, the third-layer lifting device includes a third-layer supporting plate, two parallel third-layer guide rails are fixed on the inner surface of the third-layer supporting plate, each third-layer guide rail is cooperated with the third-layer slider, and a third-layer connecting block is fixed above the third-layer slider, and the inner surface of the third-layer supporting plate is also provided with a third-layer driving wheel and a third-layer driven wheel, the third-layer driving wheel and the third-layer driven wheel are connected to each other through a third-layer synchronous belt, and a third-layer transmission rack is arranged in parallel next to the third-layer synchronous belt, the two parallel third-layer guide rails are parallel to the third-layer transmission rack, and the two third-layer guide rails are arranged on both sides of the third-layer transmission rack and the third-layer synchronous belt, and the inner surface of the third-layer supporting plate is also provided with a third-layer transmission pulley, the third-layer transmission pulley is connected to the third-layer driving wheel, the third-layer transmission pulley is connected to the third-layer pulley fixed on the outer surface of the third-layer supporting plate through the third-layer transmission belt, a third-layer transmission gear is arranged next to the third-layer pulley, the third layer pulley is connected to the third layer transmission gear, the third layer transmission gear is connected to the outer surface of the third-layer supporting plate through the third-layer fixed seat, and the third layer transmission gear cooperates with the second-layer transmission rack for transmission.

[0009] Furthermore, the outer surface of the third-layer support plate is fixedly connected to the upper surface of the second-layer connecting block, the second-layer synchronous belt is fixedly connected to the outer surface of the third-layer support plate through the second-layer synchronous belt pressure plate, the third-layer lifting device is driven by the second-layer synchronous belt and slides up and down along the second-layer guide rail, the third-layer transmission gear drives the third-layer pulley to rotate, and the third-layer driving wheel is driven to rotate through the third-layer transmission belt and the third-layer transmission pulley.

[0010] Furthermore, the fourth-layer lifting device includes a fourth-layer supporting plate, two parallel fourth-layer guide rails are fixed on the inner surface of the fourth-layer supporting plate, a fourth-layer slider is connected to each fourth-layer guide rail, and a fourth-layer connecting block is fixed above the fourth-layer slider. The inner surface of the fourth-layer supporting plate is also provided with a fourth-layer driving wheel and a fourth-layer passive wheel, and the fourth-layer driving wheel and the fourth-layer passive wheel are connected for transmission by a fourth-layer synchronous belt. The two fourth-layer guide rails are arranged on both sides of the fourth-layer synchronous belt. The inner surface of the fourth-layer supporting plate is also provided with a fourth-layer transmission pulley, the fourth-layer transmission pulley is connected to the fourth-layer driving wheel, the fourth-layer transmission pulley is connected to the fourth-layer pulley fixed on the outer surface of the fourth-layer supporting plate through the fourth-layer transmission belt, a fourth-layer transmission gear is arranged next to the fourth-layer pulley, the fourth-layer pulley is connected to the fourth-layer transmission gear, the fourth-layer transmission gear is connected to the outer surface of the fourth-layer supporting plate through the fourth-layer fixed seat, and the fourth-layer transmission gear cooperates with the third-layer transmission rack for transmission.

[0011] Furthermore, the outer surface of the fourth-layer support plate is fixedly connected to the upper surface of the third-layer connecting block, the third-layer synchronous belt is fixedly connected to the outer surface of the fourth-layer support plate through the third-layer synchronous belt pressure plate, the fourth-layer lifting device is driven by the third-layer synchronous belt and slides up and down along the third-layer guide rail, the fourth-layer transmission gear drives the fourth-layer pulley to rotate, and the fourth-layer driving wheel is driven to rotate through the fourth-layer transmission belt and the fourth-layer transmission pulley.

[0012] Furthermore, the outer surface of the jacking plate is fixedly connected to the upper surface of the fourth-layer connecting block, the fourth-layer synchronous belt is fixedly connected to the outer surface of the jacking plate through the fourth-layer synchronous belt pressure plate, and the jacking plate is driven by the fourth-layer synchronous belt to slide up and down along the fourth-layer guide rail.

[0013] Furthermore, the mast also includes a support plate, and each layer of lifting device includes a side sealing plate and an upper sealing plate, and the support plates are fixed on both sides of the first layer of lifting device; after the first layer of lifting device is connected to the first layer of side sealing plates, the upper part of the first layer of lifting device is connected to the first layer of upper sealing plates to achieve lifting and sealing of the first layer; after the second layer of lifting device is connected to the second layer of side sealing plates, the upper part of the second layer of lifting device is connected to the second layer of upper sealing plates to achieve lifting and sealing of the second layer; after the third layer of lifting device is connected to the third layer of side sealing plates, the upper part of the third layer of lifting device is connected to the third layer of upper sealing plates to achieve lifting and sealing of the third layer; after the fourth layer of lifting device is connected to the fourth layer of side sealing plates, the upper part is connected to the fourth layer of upper sealing plates to achieve lifting and sealing of the fourth layer; the motor is connected to one end of the reducer, and the other end of the reducer is fixed to the inner surface of the first layer support plate, and the center axis of the reducer is connected to the first layer driving wheel.

[0014] Beneficial effects: Compared with the existing technology, the present invention has the following significant advantages: the present invention changes the original mast guiding method and transmission structure, and uses four layers of lifting devices to cooperate in sequence to achieve rapid lifting of the mast; adjacent lifting devices are equipped with gears and racks to achieve transmission, ensuring that there is no shaking during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 This is a bottom view of the lifting mast;

[0017] Figure 3 This is the composition diagram of the first-layer lifting device;

[0018] Figure 4 This is the composition diagram of the second-layer lifting device;

[0019] Figure 5 This is the composition diagram of the third-layer lifting device;

[0020] Figure 6 This is the composition diagram of the fourth-layer lifting device;

[0021] Figure 7 This is a diagram of the lifting mast in the raised state;

[0022] Figure 8 This is the connection diagram between the second-layer lifting device and the first-layer belt;

[0023] Figure 9 This is the connection diagram between the third-layer lifting device and the second-layer belt;

[0024] Figure 10 This is the connection diagram between the fourth-layer lifting device and the third-layer belt;

[0025] Figure 11This is the connection diagram between the lifting plate and the fourth layer belt. DETAILED DESCRIPTION

[0026] like Figure 1 The lifting mast for GPS and communication antenna of a flatbed container truck at a port described in this embodiment includes a support plate 1, a first-layer lifting device 2, a second-layer lifting device 5, a third-layer lifting device 8, a fourth-layer lifting device 11, a lifting plate 14, a motor 15 and a reducer 16. The support plate 1 is fixed on both sides of the first-layer lifting device 2, the motor 15 is connected to one end of the reducer 16, and the other end of the reducer 16 is fixed to the inner surface of the first-layer support plate 2-1. The central axis of the reducer 16 is connected to the rotating shaft of the first-layer driving wheel 2-8. Figure 2 shown.

[0027] Each layer of lifting device includes a side sealing plate and an upper sealing plate. After the first layer lifting device 2 is connected to the first layer side sealing plate 3, the upper part of the first layer lifting device 2 is connected to the first layer upper sealing plate 4; after the second layer lifting device 5 is connected to the second layer side sealing plate 6, the upper part of the second layer lifting device 5 is connected to the second layer upper sealing plate 7; after the third layer lifting device 8 is connected to the third layer side sealing plate 9, the upper part of the third layer lifting device 8 is connected to the third layer upper sealing plate 10; after the fourth layer lifting device 11 is connected to the fourth layer side sealing plate 12, the upper part is connected to the fourth layer upper sealing plate 13.

[0028] like Figure 3 As shown, the first-layer lifting device 2 includes a first-layer supporting plate 2-1, two parallel first-layer guide rails 2-2 are fixed on the inner surface of the first-layer supporting plate 2-1, and a first-layer slider 2-3 is connected to each first-layer guide rail 2-2. A first-layer connecting block 2-4 is fixed above the first-layer slider 2-3. A first-layer driving wheel 2-8 and a first-layer passive wheel 2-6 are also provided on the surface of the first-layer supporting plate 2-1. The first-layer driving wheel 2-8 and the first-layer passive wheel 2-6 are connected and transmitted by a first-layer synchronous belt 2-7. A first-layer transmission rack 2-5 is arranged parallel to the first-layer synchronous belt 2-7. The two parallel first-layer guide rails 2-2 are parallel to the first-layer transmission rack 2-5. The two first-layer guide rails 2-2 are arranged on both sides of the first-layer transmission rack 2-5 and the first-layer synchronous belt 2-7.

[0029] like Figure 4As shown, the second-layer lifting device 5 includes a second-layer supporting plate 5-1, two parallel second-layer guide rails 5-2 are fixed on the inner surface of the second-layer supporting plate 5-1, and a second-layer slider 5-3 is connected to each second-layer guide rail 5-2. A second-layer connecting block 5-4 is fixed above the second-layer slider 5-3. A second-layer driving wheel 5-8 and a second-layer passive wheel 5-6 are also provided on the inner surface of the second-layer supporting plate 5-1. The second-layer driving wheel 5-8 and the second-layer passive wheel 5-6 are connected and transmitted by a second-layer synchronous belt 5-7. A second-layer transmission rack 5-5 is provided in parallel next to the second-layer synchronous belt 5-7. The two parallel second-layer guide rails 5-2 are parallel to the second-layer transmission rack 5-5. A second-layer guide rail 5-2 is arranged on both sides of the second-layer transmission rack 5-5 and the second-layer synchronous belt 5-7. A second-layer transmission pulley 5-9 is also provided on the inner surface of the second-layer support plate 5-1. The second-layer transmission pulley 5-9 is connected to the second-layer driving pulley 5-8. The second-layer transmission pulley 5-9 is connected to the second-layer pulley 5-13 fixed on the outer surface of the second-layer support plate 5-1 through the second-layer transmission belt 5-10. A second-layer transmission gear 5-11 is provided next to the second-layer pulley 5-13. The second-layer pulley 5-13 is coaxially connected to the second-layer transmission gear 5-11. The second-layer transmission gear 5-11 is connected to the outer surface of the second-layer support plate 5-1 through the second-layer fixed seat 5-12.

[0030] The outer surface of the second layer support plate 5-1 is fixedly connected to the upper surface of the first layer connection block 2-4, and the first layer synchronous belt 2-7 is fixedly connected to the outer surface of the second layer support plate 5-1 through the first layer synchronous belt pressure plate 17. Figure 8 As shown, the second-layer lifting device 5 is driven by the first-layer synchronous belt 2-7 and slides up and down along the first-layer guide rail 2-2. The second-layer transmission gear 5-11 drives the second-layer pulley 5-13 to rotate, and drives the second-layer driving wheel 5-8 to rotate through the second-layer transmission belt 5-10 and the second-layer transmission pulley 5-9.

[0031] like Figure 5As shown, the third-layer lifting device 8 includes a third-layer supporting plate 8-1, two parallel third-layer guide rails 8-2 are fixed on the inner surface of the third-layer supporting plate 8-1, a third-layer slider 8-3 is connected to each third-layer guide rail 8-2, and a third-layer connecting block 8-4 is fixed above the third-layer slider 8-3. The inner surface of the third-layer supporting plate 8-1 is also provided with a third-layer driving wheel 8-8 and a third-layer passive wheel 8-6. The third-layer driving wheel 8-8 and the third-layer passive wheel 8-6 ​​are connected and transmitted by a third-layer synchronous belt 8-7. A third-layer transmission rack 8-5 is arranged in parallel next to the third-layer synchronous belt 8-7. The two parallel third-layer guide rails 8-2 are parallel to the third-layer transmission rack 8-5. The two third-layer guide rails 8-2 are arranged in the third On both sides of the third-layer transmission rack 8-5 and the third-layer synchronous belt 8-7, the inner surface of the third-layer supporting plate 8-1 is also provided with a third-layer transmission pulley 8-9, the third-layer transmission pulley 8-9 is connected to the third-layer driving pulley 8-8, the third-layer transmission pulley 8-9 is connected to the third-layer pulley 8-13 fixed on the outer surface of the third-layer supporting plate 8-1 through the third-layer transmission belt 8-10, and a third-layer transmission gear 8-11 is provided next to the third-layer pulley 8-13, the third-layer pulley 8-13 is coaxially connected with the third-layer transmission gear 8-11, the third-layer transmission gear 8-11 is connected to the outer surface of the third-layer supporting plate 8-1 through the third-layer fixed seat 8-12, and the third-layer transmission gear 8-11 cooperates with the second-layer transmission rack 5-5 for transmission.

[0032] The outer surface of the third layer support plate 8-1 is fixedly connected to the upper surface of the second layer connection block 5-4, and the second layer synchronous belt 5-7 is fixedly connected to the outer surface of the third layer support plate 8-1 through the second layer synchronous belt pressure plate 18. Figure 9 As shown, Figure 7 This is a diagram of the lifting mast in the lifting state. Figure 8 yes Figure 7 AA cross-sectional view; the third layer lifting device 8 is driven by the second layer synchronous belt 5-7 and slides up and down along the second layer guide rail 5-2, the third layer transmission gear 8-11 drives the third layer pulley 8-13 to rotate, and the third layer transmission belt 8-10 and the third layer transmission pulley 8-9 drive the third layer driving wheel 8-8 to rotate.

[0033] like Figure 6As shown, the fourth-layer lifting device 11 includes a fourth-layer support plate 11-1, two parallel fourth-layer guide rails 11-2 are fixed on the inner surface of the fourth-layer support plate 11-1, and a fourth-layer slider 11-3 is connected to each fourth-layer guide rail 11-2. A fourth-layer connecting block 11-4 is fixed above the fourth-layer slider 11-3. The inner surface of the fourth-layer support plate 11-1 is also provided with a fourth-layer driving wheel 11-7 and a fourth-layer passive wheel 11-5. The fourth-layer driving wheel 11-7 and the fourth-layer passive wheel 11-5 are connected and driven by a fourth-layer synchronous belt 11-6. The two fourth-layer guide rails 11-2 are provided on both sides of the fourth-layer synchronous belt 11-6. A fourth-layer transmission pulley 11-8 is also provided on the inner surface of 1-1, and the fourth-layer transmission pulley 11-8 is connected to the fourth-layer driving pulley 11-7. The fourth-layer transmission pulley 11-8 is connected to the fourth-layer pulley 11-12 fixed on the outer surface of the fourth-layer supporting plate 11-1 through the fourth-layer transmission belt 11-9. A fourth-layer transmission gear 11-10 is provided next to the fourth-layer pulley 11-12, and the fourth-layer pulley 11-12 is connected to the fourth-layer transmission gear 11-10. The fourth-layer transmission gear 11-10 is connected to the outer surface of the fourth-layer supporting plate 11-1 through the fourth-layer fixed seat 11-11. The fourth-layer transmission gear 11-10 cooperates with the third-layer transmission rack 8-5 for transmission.

[0034] The outer surface of the fourth layer support plate 11-1 is fixedly connected to the upper surface of the third layer connection block 8-4, and the third layer synchronous belt 8-7 is fixedly connected to the outer surface of the fourth layer support plate 11-1 through the third layer synchronous belt pressure plate 19. Figure 10 shown.

[0035] The outer surface of the lifting plate 14 is fixedly connected to the upper surface of the fourth layer connection block 11-4, and the fourth layer synchronous belt 11-6 is fixedly connected to the outer surface of the lifting plate 14 through the fourth layer synchronous belt pressure plate 20. Figure 11 shown.

[0036] Mast lifting principle of this embodiment:

[0037] The motor 14 drives the first-layer driving wheel 2-8 to rotate through the reducer 15, driving the first-layer synchronous belt 2-7 to rise and fall. The first-layer synchronous belt 2-7 is fixed to the outer surface of the second-layer supporting plate 5-1 by the first-layer synchronous belt pressure plate 17, and the outer surface of the second-layer supporting plate 5-1 is connected to the guide rail pair composed of the first-layer slider 2-3, the first-layer guide rail 2-2 and the first-layer connecting block 2-4, so that the second-layer lifting device 5 can be quickly lifted and lowered along the first-layer guide rail 2-2. At the same time, when the second-layer lifting device 5 is lifted and lowered, the second-layer transmission gear 5-11 in the second-layer lifting device 5 cooperates with the first-layer transmission rack 2-5 to generate rotation, and the first-layer driving wheel 5-8 is driven to rotate through the second-layer pulley 5-13, the second-layer transmission belt 5-10 and the second-layer transmission pulley 5-9, thereby realizing the power input of the second-layer lifting device 5.

[0038] The second-layer driving wheel 5-8 drives the second-layer synchronous belt 5-7 to rise and fall. The second-layer synchronous belt 5-7 is fixed to the outer surface of the third-layer supporting plate 8-1 by the second-layer synchronous belt pressure plate 18, and the outer surface of the third-layer supporting plate 8-1 is connected to the guide rail pair composed of the second-layer slider 5-3, the second-layer guide rail 5-2 and the second-layer connecting block 5-4, so that the third-layer lifting device 8 can be quickly lifted and lowered along the second-layer guide rail 5-2. At the same time, when the third-layer lifting device 8 is lifted and lowered, the rotation generated by the cooperation between the third-layer transmission gear 8-11 and the second-layer transmission rack 5-5 drives the third-layer driving wheel 8-8 to rotate through the third-layer pulley 8-13, the third-layer transmission belt 8-10 and the third-layer transmission pulley 8-9, thereby realizing the power input of the third-layer lifting device 8.

[0039] The driving wheel 8-8 drives the third-layer synchronous belt 8-7 to rise and fall. The third-layer synchronous belt 8-7 is fixed to the outer surface of the fourth-layer support plate 11-1 by the third-layer synchronous belt pressure plate 19, and the outer surface of the fourth-layer support plate 11-1 is connected to the guide rail pair composed of the third-layer slider 8-3, the third-layer guide rail 8-2 and the third-layer connecting block 8-4, so that the fourth-layer lifting device 11 can be quickly lifted and lowered along the third-layer guide rail 8-2. At the same time, when the fourth-layer lifting device 11 is lifted and lowered, the fourth-layer transmission gear 11-10 in the fourth-layer lifting device 8 cooperates with the third-layer transmission rack 8-5, resulting in rotation. The fourth-layer driving wheel 11-7 is driven to rotate through the fourth-layer pulley 11-12, the fourth-layer transmission belt 11-9 and the fourth-layer transmission pulley 11-8, thereby realizing the power input of the fourth-layer lifting device 11.

[0040] The fourth-layer driving wheel 11-7 drives the fourth-layer synchronous belt 11-6 to rise and fall. The fourth-layer synchronous belt 11-6 is fixed to the outer surface of the lifting plate 14 by the fourth-layer synchronous belt pressure plate 20, and the outer surface of the lifting plate 14 is connected to the guide rail pair composed of the third-layer slider 11-3, the third-layer guide rail 11-2 and the third-layer connecting block 11-4, so that the lifting plate 14 can be quickly lifted and lowered along the third-layer guide rail 11-2.

Claims

1. A lifting mast for GPS and communication antennas on flatbed container trucks at ports, characterized in that: It includes a first-layer lifting device, a second-layer lifting device, a third-layer lifting device, a fourth-layer lifting device, a lifting plate, a motor and a reducer. The reducer is connected to the motor, and the motor is connected to the first-layer lifting device through the first-layer driving wheel. The first-layer lifting device is connected to the second-layer lifting device through the first-layer synchronous belt pressure plate. The second-layer lifting device is connected to the third-layer lifting device through the second-layer synchronous belt pressure plate. The third-layer lifting device is connected to the fourth-layer lifting device through the third-layer synchronous belt pressure plate. The fourth-layer lifting device is connected to the lifting plate through the fourth-layer synchronous belt pressure plate. The first-layer lifting device includes a first-layer supporting plate, two parallel first-layer guide rails are fixed on the inner surface of the first-layer supporting plate, each first-layer guide rail is matched with a first-layer slider, a first-layer connecting block is fixed above the first-layer slider, a first-layer driving wheel and a first-layer driven wheel are further provided on the surface of the first-layer supporting plate, the first-layer driving wheel and the first-layer driven wheel are connected and driven by a first-layer synchronous belt, a first-layer transmission rack is provided in parallel next to the first-layer synchronous belt, the two parallel first-layer guide rails are parallel to the first-layer transmission rack, and the two first-layer guide rails are provided on both sides of the first-layer transmission rack and the first-layer synchronous belt; The second-layer lifting device includes a second-layer supporting plate, and the inner surface of the second-layer supporting plate is further provided with a second-layer driving wheel and a second-layer transmission pulley, the second-layer transmission pulley is connected to the second-layer driving wheel, and the second-layer transmission pulley is connected to the second-layer pulley fixed to the outer surface of the second-layer supporting plate through a second-layer transmission belt, and a second-layer transmission gear is provided next to the second-layer pulley; The outer surface of the second-layer support plate is fixedly connected to the upper surface of the first-layer connection block, the first-layer synchronous belt is fixedly connected to the outer surface of the second-layer support plate through the first-layer synchronous belt pressure plate, the second-layer lifting device is driven by the first-layer synchronous belt and slides up and down along the first-layer guide rail, the second-layer transmission gear drives the second-layer pulley to rotate, and the second-layer driving wheel is driven to rotate through the second-layer transmission belt and the second-layer transmission pulley; The fourth-layer lifting device includes a fourth-layer support plate, two parallel fourth-layer guide rails are fixed on the inner surface of the fourth-layer support plate, a fourth-layer slider is connected to each fourth-layer guide rail, a fourth-layer connecting block is fixed above the fourth-layer slider, and a fourth-layer driving wheel and a fourth-layer driven wheel are further provided on the inner surface of the fourth-layer support plate. The fourth-layer driving wheel and the fourth-layer driven wheel are connected and driven by a fourth-layer synchronous belt, and the two fourth-layer guide rails are provided on both sides of the fourth-layer synchronous belt; The outer surface of the jacking plate is fixedly connected to the upper surface of the fourth-layer connecting block, and the fourth-layer synchronous belt is fixedly connected to the outer surface of the jacking plate through the fourth-layer synchronous belt pressure plate. The jacking plate is driven by the fourth-layer synchronous belt to slide up and down along the fourth-layer guide rail; The second layer pulley is coaxially connected to the second layer transmission gear, the second layer transmission gear is connected to the outer surface of the second layer support plate through the second layer fixing seat, and the second layer transmission gear cooperates with the first layer transmission rack for transmission.

2. The lifting mast according to claim 1, characterized in that: Two parallel second-layer guide rails are fixed on the inner surface of the second-layer supporting plate, and the second-layer slider is connected to each second-layer guide rail. The second-layer connecting block is fixed above the second-layer slider, the second-layer passive wheel, the second-layer driving wheel and the second-layer passive wheel are connected and transmitted through the second-layer synchronous belt, and the second-layer transmission rack is arranged parallel to the second-layer synchronous belt. The two parallel second-layer guide rails are parallel to the second-layer transmission rack, and the two second-layer guide rails are arranged on both sides of the second-layer transmission rack and the second-layer synchronous belt.

3. The lifting mast according to claim 1, characterized in that: The third-layer lifting device includes a third-layer supporting plate, two parallel third-layer guide rails are fixed on the inner surface of the third-layer supporting plate, each third-layer guide rail is matched to be connected to the third-layer slider, and a third-layer connecting block is fixed above the third-layer slider, and the inner surface of the third-layer supporting plate is also provided with a third-layer driving wheel and a third-layer driven wheel, and the third-layer driving wheel and the third-layer driven wheel are connected and transmitted by a third-layer synchronous belt, and a third-layer transmission rack is arranged in parallel next to the third-layer synchronous belt, the two parallel third-layer guide rails are parallel to the third-layer transmission rack, and the two third-layer guide rails are arranged on both sides of the third-layer transmission rack and the third-layer synchronous belt, and the inner surface of the third-layer supporting plate is also provided with a third-layer transmission pulley, the third-layer transmission pulley is connected to the third-layer driving wheel, the third-layer transmission pulley is connected to the third-layer pulley fixed on the outer surface of the third-layer supporting plate through the third-layer transmission belt, and a third-layer transmission gear is arranged next to the third-layer pulley, the third layer pulley is coaxially connected with the third layer transmission gear, the third layer transmission gear is connected to the outer surface of the third-layer supporting plate through the third-layer fixed seat, and the third layer transmission gear cooperates with the second-layer transmission rack for transmission.

4. The lifting mast according to claim 3, characterized in that: The outer surface of the third-layer support plate is fixedly connected to the upper surface of the second-layer connection block. The second-layer synchronous belt is fixedly connected to the outer surface of the third-layer support plate through the second-layer synchronous belt pressure plate. The third-layer lifting device is driven by the second-layer synchronous belt and slides up and down along the second-layer guide rail. The third-layer transmission gear drives the third-layer pulley to rotate, and the third-layer driving wheel is driven to rotate through the third-layer transmission belt and the third-layer transmission pulley.

5. The lifting mast according to claim 1, characterized in that: A fourth-layer transmission pulley is also provided on the inner surface of the fourth-layer supporting plate, the fourth-layer transmission pulley is connected to the fourth-layer driving pulley, the fourth-layer transmission pulley is connected to the fourth-layer pulley fixed on the outer surface of the fourth-layer supporting plate through the fourth-layer transmission belt, a fourth-layer transmission gear is provided next to the fourth-layer pulley, the fourth-layer pulley is connected to the fourth-layer transmission gear, the fourth-layer transmission gear is connected to the outer surface of the fourth-layer supporting plate through the fourth-layer fixed seat, and the fourth-layer transmission gear cooperates with the third-layer transmission rack for transmission.

6. The lifting mast according to claim 1, characterized in that: The outer surface of the fourth-layer support plate is fixedly connected to the upper surface of the third-layer connection block. The third-layer synchronous belt is fixedly connected to the outer surface of the fourth-layer support plate through the third-layer synchronous belt pressure plate. The fourth-layer lifting device is driven by the third-layer synchronous belt and slides up and down along the third-layer guide rail. The fourth-layer transmission gear drives the fourth-layer pulley to rotate, and the fourth-layer driving wheel is driven to rotate through the fourth-layer transmission belt and the fourth-layer transmission pulley.

7. The lifting mast according to claim 1, characterized in that: The mast also includes a support plate, and each layer of lifting device includes a side sealing plate and an upper sealing plate, and the support plates are fixed on both sides of the first layer of lifting device; after the first layer of lifting device is connected to the first layer of side sealing plates, the upper part of the first layer of lifting device is connected to the first layer of upper sealing plates; after the second layer of lifting device is connected to the second layer of side sealing plates, the upper part of the second layer of lifting device is connected to the second layer of upper sealing plates; after the third layer of lifting device is connected to the third layer of side sealing plates, the upper part of the third layer of lifting device is connected to the third layer of upper sealing plates; after the fourth layer of lifting device is connected to the fourth layer of side sealing plates, the upper part is connected to the fourth layer of upper sealing plates; the motor is connected to one end of the reducer, and the other end of the reducer is fixed to the inner surface of the first layer of supporting plate, and the center axis of the reducer is connected to the rotating axis of the first layer of driving wheel.

Images