Large vehicle-mounted antenna electric lifting platform

Abstract

The invention provides a large vehicle-mounted antenna electric lifting platform, and belongs to the technical field of vehicle-mounted antennae, the large vehicle-mounted antenna electric lifting platform comprises a carriage bottom plate, a lifting mechanism and a clamping mechanism, the lifting mechanism comprises electric cylinders fixedly mounted at four corners of the carriage bottom plate, and the interiors of the four electric cylinders are movably connected with telescopic rods; lifting blocks are fixedly mounted at the top ends of the four telescopic rods correspondingly, inserting grooves are formed in the inner sides of the four lifting blocks correspondingly, lifting plates are movably connected to the interiors of the four inserting grooves correspondingly, trays are movably connected to the bottom ends of the four lifting plates correspondingly, and the clamping mechanisms comprise clamping blocks slidably connected to the front sides and the rear sides of the interiors of the inserting grooves correspondingly; the outer sides of the two clamping blocks are fixedly connected with moving rods, and the other ends of the two moving rods are in transmission connection with a driving assembly. The problems that an existing large vehicle-mounted antenna electric lifting platform is complex in structure and difficult to maintain are solved, and the lifting platform which is simplified in structure, convenient to maintain and high in reliability is provided.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle-mounted antennas, in particular to a large-scale electric lifting platform for vehicle-mounted antennas. Background Art

[0002] The electric lifting platform for vehicle-mounted antennas is mainly used to lift the vehicle-mounted antenna out of the top of the car when it is working, and to lower the antenna back into the car when not in use, so as to facilitate the storage and protection of the antenna. In the prior art, CN104993218A discloses a large electric lifting platform for vehicle-mounted antennas. The platform adopts a complex transmission structure, including a motor-reducer combination and a chain transmission mechanism, which drives the antenna tray to rise and fall through the cooperation of multiple transmission screws and nuts. However, the transmission structure of this technical solution is complex, the manufacturing cost is high, and the maintenance is difficult. In particular, when the transmission chain becomes loose or fails, the maintenance personnel need to spend a lot of time to tighten and repair it, which affects the operating efficiency of the equipment.

[0003] In addition, the chain transmission system in CN104993218A solves the problem of the long chain being easy to loosen by tensioning the sprocket during the antenna lifting process, but the overall system still relies on multiple transmission components, which increases the possibility of equipment failure. In particular, when the vehicle-mounted antenna needs to be lifted and lowered frequently or works in harsh environments, the complex mechanical structure is prone to wear, increasing the cost and difficulty of maintenance and repair. This transmission method poses a great challenge to the long-term stable operation of large antenna platforms.

[0004] Therefore, in view of the shortcomings of the existing technology, there is an urgent need for a large-scale vehicle-mounted antenna electric lifting platform with a simpler structure, more convenient maintenance and higher reliability. By optimizing the design, reducing the number of transmission components, and adopting a more flexible lifting control system, the service life of the equipment can be effectively improved, the failure rate can be reduced, and the maintenance efficiency of the equipment can be improved. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0007] Therefore, the technical problem to be solved by the present invention is to provide a large-scale vehicle-mounted antenna electric lifting platform with a simplified structure, convenient maintenance and high reliability, so as to overcome the problems of complex structure and difficult maintenance in the prior art.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a large vehicle-mounted antenna electric lifting platform, comprising:

[0009] Carriage floor;

[0010] The lifting mechanism comprises electric cylinders fixedly mounted at the four corners of the carriage floor, the interiors of the four electric cylinders are movably connected with telescopic rods, the tops of the four telescopic rods are fixedly mounted with lifting blocks, the inner sides of the four lifting blocks are provided with slots, the interiors of the four slots are movably connected with lifting plates, and the bottom ends of the four lifting plates are movably connected with trays; and,

[0011] The clamping mechanism comprises clamping blocks which are slidably connected to the front and rear sides of the slot, the outer sides of the two clamping blocks are fixedly connected with moving rods, and the other ends of the two moving rods are transmission-connected with driving components.

[0012] As a preferred solution of the large vehicle-mounted antenna electric lifting platform described in the present invention, card slots are symmetrically opened on the front and rear sides of the top of the lifting plate, one side of the top of the lifting plate is inserted into the slot, and the card ends of the two card blocks are respectively carded in the two card slots.

[0013] As a preferred solution of the large-scale vehicle-mounted antenna electric lifting platform described in the present invention, telescopic grooves are opened at the four corners inside the tray, and the bottom ends of the four lifting plates are respectively slidably connected in the four telescopic grooves, and one end of the telescopic groove is fixedly connected with a tension spring, and the other end of the tension spring is fixedly connected to the side wall of the lifting plate.

[0014] As a preferred solution of the large vehicle-mounted antenna electric lifting platform described in the present invention, the bottom ends of the four telescopic slots are each provided with a limiting slot, and the cross-section of the limiting slot is larger than the cross-section of the telescopic slot, a limiting plate is slidably connected in the limiting slot, and the bottom end of the limiting plate is fixedly connected to the bottom of the lifting plate.

[0015] As a preferred solution of the large vehicle-mounted antenna electric lifting platform of the present invention, positioning blocks are symmetrically installed on both sides of the lifting block away from the front and rear ends of one end of the lifting plate, and the driving assembly is installed on the two positioning blocks.

[0016] As a preferred solution of the large vehicle-mounted antenna electric lifting platform of the present invention, wherein: the driving assembly includes a rotating rod rotatably connected between the two positioning blocks, the front and rear ends of the rotating rod respectively penetrate the two positioning blocks and extend to the outside thereof to be fixedly connected with a threaded rod, and the other ends of the two threaded rods are fixedly installed with a limit block;

[0017] The threads on the outer surfaces of the two threaded rods are arranged in opposite directions, and one end of the two moving rods is respectively threadedly connected to the outer surfaces of the two threaded rods.

[0018] As a preferred solution of the large vehicle-mounted antenna electric lifting platform described in the present invention, the front and rear ends of the rotating rod are rotatably connected to the inner walls of the two positioning blocks through bearings, and the outer surface of the middle part of the rotating rod is provided with anti-slip grooves.

[0019] As a preferred solution of the large vehicle-mounted antenna electric lifting platform of the present invention, there are four groups of the clamping mechanisms, which are respectively installed on four lifting blocks.

[0020] As a preferred solution of the large vehicle-mounted antenna electric lifting platform of the present invention, the bottom ends of the four electric cylinders are fixedly mounted at the four corners of the upper surface of the vehicle floor by bolts.

[0021] Beneficial effects of the present invention:

[0022] 1. Simplified structure, convenient maintenance, high reliability: The design of electric cylinder and telescopic rod replaces the traditional complex transmission mechanism, reduces the number of transmission parts, simplifies the overall structure, and reduces the manufacturing cost. In particular, a clamping mechanism is set to make the lifting block and the lifting plate movably connected. When a single electric cylinder is damaged or fails, it is only necessary to release the limit fixation of the lifting plate by the corresponding set of clamping mechanisms, and the faulty electric cylinder can be disassembled and replaced separately, which is convenient and quick for maintenance, reducing the difficulty and cost of maintenance and improving the reliability of the equipment.

[0023] 2. Improve equipment life and reduce failure rate: Through optimized design, the intermediate transmission links and mechanical wear are reduced, and the service life of the equipment is extended. The simplified structure reduces potential failure points, eliminates chains and multiple transmission components, ensures stable operation of the equipment under frequent lifting or harsh environments, reduces failure rate, and improves equipment operation efficiency and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0025] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0026] Figure 2 It is a front cross-sectional view of the present invention;

[0027] Figure 3 A three-dimensional diagram of the connection between the tray and the lifting plate of the present invention;

[0028] Figure 4 For the present invention Figure 1 A schematic diagram of the structure enlargement at the center A;

[0029] Figure 5 It is an enlarged schematic diagram of the structure of the lifting block of the present invention;

[0030] Figure 6 It is a top sectional view of the connection between the lifting block and the lifting plate of the present invention. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figure 1 , which is the first embodiment of the present invention, provides a large-scale vehicle-mounted antenna electric lifting platform, including a vehicle floor 100 and a lifting mechanism 200 installed on the top of the vehicle floor 100. The lifting mechanism 200 can carry an antenna tray and realize the lifting operation of the antenna through electric control, so that the antenna can be lifted out of the top of the vehicle when it needs to work, and lowered back into the vehicle when not in use, so as to facilitate the storage and protection of the antenna.

[0036] Specifically, the lifting mechanism 200 includes electric cylinders 201 fixedly installed at the four corners of the car floor 100. Each electric cylinder 201 is movably connected to a telescopic rod 202, and the telescopic rod 202 moves up and down under the drive of the electric cylinder 201 to provide the power required for lifting. The top of the four telescopic rods 202 is fixedly installed with a lifting block 203. The lifting block 203, as a key transmission component, transmits the lifting movement of the telescopic rod 202 to the lifting plate 204. A slot 203a is opened on the inner side of each lifting block 203, and the top of the lifting plate 204 is fixedly connected to the inside of the slot 203a through a clamping mechanism 300, so that the lifting plate 204 is tightly connected to the lifting block 203 and cannot move relative to each other.

[0037] The bottom ends of the four lifting plates 204 are all movably connected to a tray 205, and the tray 205 is used to carry the antenna equipment. When the electric cylinder 201 is working, the telescopic rod 202 drives the lifting block 203 to move up and down. Because the top of the lifting plate 204 is fixed in the slot 203a of the lifting block 203 through the clamping mechanism 300, the lifting plate 204 moves with the lifting block 203, thereby driving the tray 205 to achieve synchronous lifting. This design ensures the smooth movement of the tray 205, ensures smooth and reliable lifting and lowering operations of the antenna, and each component cooperates with each other to play its own function, realizing the simplification of the overall structure and the improvement of performance.

[0038] Example 2

[0039] Reference Figure 2 to Figure 6 , which is the second embodiment of the present invention. This embodiment adds a clamping mechanism 300 on the basis of the previous embodiment, which is used to achieve reliable connection and quick disassembly of the lifting block 203 and the lifting plate 204. The setting of the clamping mechanism 300 makes it possible to remove and replace the faulty electric cylinder 201 separately by simply releasing the limit fixation of the corresponding set of clamping mechanisms 300 on the lifting plate 204, which greatly facilitates the maintenance and overhaul of the equipment.

[0040] Specifically, the clamping mechanism 300 includes a clamping block 301 slidably connected to the front and rear sides of the slot 203a. The clamping block 301 can slide forward and backward in the slot 203a, and the outer side thereof is fixedly connected to the moving rod 302. The other end of the moving rod 302 is transmission-connected to the driving assembly 303, and the driving assembly 303 is used to control the movement of the moving rod 302, thereby driving the clamping block 301 to slide in the slot 203a. Through this design, the clamping block 301 can achieve precise position control under the action of the driving assembly 303.

[0041] The front and rear sides of the top of the lifting plate 204 are symmetrically provided with card slots 204a, and one side of the top of the lifting plate 204 is inserted into the slot 203a of the lifting block 203. When the card block 301 slides to a position aligned with the card slot 204a under the drive of the driving assembly 303, the card ends of the card block 301 are respectively carded into the two card slots 204a of the lifting plate 204, thereby firmly fixing the lifting plate 204 on the lifting block 203. Through the action of the card connection mechanism 300, the lifting block 203 and the lifting plate 204 can be reliably connected, and the card connection can be easily released when necessary, so as to realize the rapid disassembly and installation of the lifting plate 204, and facilitate the maintenance and replacement of a single electric cylinder 201.

[0042] Telescopic slots 205a are provided at the four corners of the interior of the tray 205. The telescopic slots 205a serve as sliding channels at the bottom of the lifting plate 204, allowing the lifting plate 204 to slide freely therein. The bottom ends of the four lifting plates 204 are respectively slidably connected in the four telescopic slots 205a. The main function of the lifting plate 204 is to transmit the lifting motion of the lifting block 203 to the tray 205, thereby realizing the synchronous lifting of the tray 205. A tension spring 206 is fixedly connected to one end of the interior of the telescopic slot 205a, and the other end of the tension spring 206 is fixedly connected to the side wall of the lifting plate 204. The tension spring 206 is in a stretched state when installed, and its function is to provide a rebound force under certain circumstances to assist in the extraction and separation of the lifting plate 204.

[0043] like Figure 2 and Figure 3 As shown, when the clamping mechanism 300 (used to fix the connection between the lifting plate 204 and the lifting block 203) releases the clamping of the lifting plate 204, the tension spring 206 will shrink due to its own resilience, pulling the lifting plate 204 out of the slot 203a of the lifting block 203, and releasing the limit fixation of the lifting block 203 and the lifting plate 204. Through this design, the staff can use the resilience of the tension spring 206 to automatically separate the lifting plate 204 from the lifting block 203, so as to conveniently remove the electric cylinder 201 (the key component that provides lifting power) separately, and realize the maintenance and replacement of the electric cylinder 201. This structural design not only simplifies the disassembly process, but also improves the maintenance efficiency of the equipment.

[0044] It should be noted that expansion slots 205a are provided at the four corners inside the tray 205. The function of the expansion slots 205a is to provide a sliding channel for the bottom end of the lifting plate 204. In order to further improve the structure, a limiting slot 205b is provided at the bottom end of each expansion slot 205a. The cross-section of the limiting slot 205b is larger than the cross-section of the expansion slot 205a. A limiting plate 207 is slidably connected in the limiting slot 205b. The bottom end of the limiting plate 207 is fixedly connected to the bottom of the lifting plate 204. The function of the limiting plate 207 is to support the tray 205 when the lifting plate 204 moves up, so as to prevent the tension spring 206 from being damaged by excessive tension.

[0045] Since the bottom end of the lifting plate 204 is inserted into the telescopic slot 205a and is relatively connected to the tray 205 through the tension spring 206, when the lifting plate 204 moves up, if there is no design of the limit plate 207, the tension spring 206 will be directly pulled, which may cause the spring to be damaged. The cross-section of the limit plate 207 is larger than the telescopic slot 205a, which means that when the lifting plate 204 moves up, the limit plate 207 will contact the inner wall of the limit slot 205b, thereby holding up the tray 205 and preventing the tension spring 206 from being overstressed. At the same time, the limit plate 207 is slidably connected in the limit slot 205b, which does not affect the up and down movement of the lifting plate 204, ensuring the stability and reliability of the entire lifting mechanism.

[0046] Furthermore, positioning blocks 208 are symmetrically installed on the front and rear sides of one end of the lifting block 203 away from the lifting plate 204. The positioning blocks 208 are used to provide a stable installation position for the driving assembly 303 to ensure the reliable operation of the driving assembly. The driving assembly 303 is installed on the two positioning blocks 208 and is responsible for controlling the movement of the clamping block 301, thereby realizing the clamping and release of the lifting plate 204.

[0047] The driving assembly 303 includes a rotating rod 303a rotatably connected between the two positioning blocks 208. The rotating rod 303a serves as a transmission shaft. Its front and rear ends respectively penetrate the two positioning blocks 208 and extend to the outside. The external part is fixedly connected to a threaded rod 303b. The other end of the threaded rod 303b is fixedly installed with a limit block 303c. The function of the limit block 303c is to prevent the moving rod 302 from derailing when moving on the threaded rod 303b, thereby ensuring the accuracy and stability of the transmission.

[0048] The threads on the outer surfaces of the two threaded rods 303b are arranged in opposite directions, one is a left-handed thread and the other is a right-handed thread. Such a design makes it possible that when the rotating rod 303a rotates, the two threaded rods 303b rotate in the same direction, but due to the opposite threads, the moving rods 302 threadedly connected to the threaded rods 303b will move horizontally in opposite directions or in opposite directions. One end of the two moving rods 302 is threadedly connected to the outer surfaces of the two threaded rods 303b respectively, and the moving rods 302 convert the rotational motion of the threaded rods 303b into linear motion, thereby driving the horizontal movement of the clamping block 301.

[0049] When the staff rotates the rotating rod 303a in the forward direction, the two threaded rods 303b rotate in the same direction, and the moving rod 302 moves horizontally in opposite directions due to the opposite rotation directions of the threads, driving the blocking block 301 to move to the outside of the lifting block 203, and the blocking block 301 disengages from the slot 204a at the top of the lifting plate 204, thereby releasing the limiting fixation of the lifting plate 204. The lifting plate 204 can be pulled out of the slot 203a of the lifting block 203 under the action of the rebound force of the tension spring 206, making it convenient for the staff to disassemble the faulty electric cylinder 201 separately.

[0050] Similarly, when the staff member rotates the rotating rod 303a in the opposite direction, the moving rod 302 will move horizontally in the opposite direction, driving the clamping block 301 to move inside the lifting block 203, and the clamping block 301 is inserted into the clamping groove 204a at the top of the lifting plate 204, so as to achieve a firm clamping connection with the lifting plate 204, and ensure the synchronous movement of the lifting block 203 and the lifting plate 204. Through this design of reverse thread setting, the staff member can conveniently control the locking and unlocking of the clamping block 301, thereby improving the maintenance efficiency and operation convenience of the equipment.

[0051] Preferably, the front and rear ends of the rotating rod 303a are rotatably connected to the inner walls of the two positioning blocks 208 through bearings 303d. The function of the bearings 303d is to provide a smooth rotation support for the rotating rod 303a, reduce friction, and ensure the reliable operation of the driving assembly 303. The positioning block 208 serves as a mounting base for the driving assembly 303, providing a stable support structure so that the rotating rod 303a can accurately transmit the rotational motion. The outer surface of the middle part of the rotating rod 303a is provided with anti-skid grooves, which increase the friction force and facilitate the staff to manually rotate the rotating rod 303a, thereby controlling the movement of the clamping block 301 and realizing the clamping and release of the lifting plate 204.

[0052] There are four groups of clamping mechanisms 300, which are respectively installed on four lifting blocks 203. Each group of clamping mechanisms 300 can independently control the corresponding lifting plate 204 to achieve reliable connection or quick separation with the lifting block 203. When it is necessary to maintain or replace a single electric cylinder 201, it is only necessary to operate the corresponding clamping mechanism 300 to release the limit fixation of the lifting plate 204, and use the resilience of the tension spring 206 to pull the lifting plate 204 out of the slot 203a of the lifting block 203, so as to facilitate disassembly and installation, thereby improving the maintenance efficiency of the equipment.

[0053] The bottom ends of the four electric cylinders 201 are fixedly mounted at the four corners of the upper surface of the car floor 100 by bolts. The bolt connection method ensures the stable installation of the electric cylinder 201 and provides a reliable lifting power source. The car floor 100 serves as the foundation of the entire lifting platform, supporting the lifting mechanism 200 and the tray 205, ensuring the stability and safety of the equipment operation. Through this design, the various components cooperate with each other and play their respective functions, realizing the simplification of the structure, convenient maintenance and improved reliability of the large-scale vehicle-mounted antenna electric lifting platform.

[0054] The working principle is:

[0055] When a certain electric cylinder 201 fails or is damaged, the staff can rotate the rotating rod 303a above the electric cylinder 201 in the forward direction, and the rotating rod 303a can drive the threaded rods 303b on the front and rear sides thereof to rotate in the same direction. The rotation of the two threaded rods 303b can drive the two moving rods 302 to move horizontally in opposite directions, and the two moving rods 302 can drive the two clamping blocks 301 to move to the outside of the lifting block 203. When the clamping ends of the two clamping blocks 203 are moved out of the clamping grooves 204a of the lifting plate 204, the lifting plate 204 can be driven to move toward the inside of the tray 205 as a whole under the action of the rebound force of the tension spring 206, and the top of the lifting plate 204 can be separated from the moving block 203. At this time, the staff only needs to remove the bolts at the bottom of the electric cylinder 201 to complete the disassembly of the faulty electric cylinder 201.

[0056] When the faulty electric cylinder 201 is overhauled, the staff first fixes the bottom end of the electric cylinder 201 to the corresponding position of the car bottom plate 100 with bolts to ensure its stable installation, and then inserts the top end of the lifting plate 204 into the slot 203a of the lifting block 203. During this process, the tension spring 206 will be stretched, and the lifting plate 204 will be pulled to the correct position to align with the lifting block 203. Then, the staff rotates the rotating rod 303a in the opposite direction, driving the threaded rods 303b on the front and rear sides to rotate in the same direction. The threads of the threaded rods 303b are rotated in opposite directions, and the threaded moving rods 302 will move horizontally toward each other, pushing the two clamping blocks 301 to move toward the inside of the lifting block 203. When the clamping ends of the two clamping blocks 301 accurately enter the clamping grooves 204a of the lifting plate 204, the lifting plate 204 is firmly clamped and fixed to the lifting block 203. This process ensures the reliable connection between the lifting block 203 and the lifting plate 204, and restores the normal function of the lifting mechanism. Finally, confirm that all components are installed in place and the equipment can be put into normal use again.

[0057] Through this design, the staff can easily and quickly complete the inspection and reinstallation of the faulty electric cylinder 201, which improves the maintenance efficiency of the equipment and ensures the stable operation of the lifting platform.

[0058] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0059] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0060] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A large vehicle-mounted antenna electric lifting platform, characterized in that: include, Carriage floor (100); The lifting mechanism (200) comprises electric cylinders (201) fixedly mounted at four corners of the carriage bottom plate (100), the interiors of the four electric cylinders (201) being movably connected to telescopic rods (202), the tops of the four telescopic rods (202) being fixedly mounted with lifting blocks (203), the inner sides of the four lifting blocks (203) being provided with slots (203a), the interiors of the four slots (203a) being movably connected to lifting plates (204), and the bottoms of the four lifting plates (204) being movably connected to trays (205); and, The clamping mechanism (300) comprises clamping blocks (301) slidably connected to the front and rear sides of the slot (203a); the outer sides of the two clamping blocks (301) are fixedly connected to moving rods (302); and the other ends of the two moving rods (302) are drivingly connected to the driving assembly (303).

2. The large vehicle-mounted antenna electric lifting platform as claimed in claim 1, characterized in that: The top of the lifting plate (204) is symmetrically provided with card slots (204a) on both the front and rear sides, one side of the top of the lifting plate (204) is inserted into the slot (203a), and the card connection ends of the two card blocks (301) are respectively carded into the two card slots (204a).

3. The large vehicle-mounted antenna electric lifting platform as claimed in claim 2, characterized in that: Telescopic grooves (205a) are provided at the four corners inside the tray (205), and the bottom ends of the four lifting plates (204) are slidably connected in the four telescopic grooves (205a), and one end of the telescopic groove (205a) is fixedly connected to a tension spring (206), and the other end of the tension spring (206) is fixedly connected to the side wall of the lifting plate (204).

4. The large vehicle-mounted antenna electric lifting platform as claimed in claim 3, characterized in that: The bottom ends of the four telescopic slots (205a) are each provided with a limiting slot (205b), and the cross-section of the limiting slot (205b) is larger than the cross-section of the telescopic slot (205a), a limiting plate (207) is slidably connected inside the limiting slot (205b), and the bottom end of the limiting plate (207) is fixedly connected to the bottom of the lifting plate (204).

5. The large vehicle-mounted antenna electric lifting platform as claimed in claim 4, characterized in that: Positioning blocks (208) are symmetrically mounted on the front and rear sides of the lifting block (203) away from one end of the lifting plate (204), and the driving assembly (303) is mounted on the two positioning blocks (208).

6. The large vehicle-mounted antenna electric lifting platform as claimed in claim 5, characterized in that: The driving assembly (303) comprises a rotating rod (303a) rotatably connected between the two positioning blocks (208), the front and rear ends of the rotating rod (303a) respectively penetrate the two positioning blocks (208) and extend to the outside thereof to be fixedly connected with a threaded rod (303b), and the other ends of the two threaded rods (303b) are fixedly installed with a limiting block (303c); The threads on the outer surfaces of the two threaded rods (303b) are arranged in opposite directions, and one end of the two moving rods (302) is respectively threadedly connected to the outer surfaces of the two threaded rods (303b).

7. The large vehicle-mounted antenna electric lifting platform as claimed in claim 6, characterized in that: The front and rear ends of the rotating rod (303a) are rotatably connected to the inner walls of the two positioning blocks (208) through bearings (303d), and the outer surface of the middle part of the rotating rod (303a) is provided with anti-slip grooves.

8. The large vehicle-mounted antenna electric lifting platform as claimed in claim 7, characterized in that: A total of four groups of the clamping mechanisms (300) are provided, and the four groups of the clamping mechanisms (300) are respectively installed on the four lifting blocks (203).

9. The large vehicle-mounted antenna electric lifting platform as claimed in claim 8, characterized in that: The bottom ends of the four electric cylinders (201) are fixedly mounted at the four corners of the upper surface of the vehicle compartment floor (100) by bolts.

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