Shield launching frame device with adjustable height

Abstract

The invention discloses a height-adjustable shield launching frame device, and belongs to the technical field of shield tunneling machines, the height-adjustable shield launching frame device comprises a main body module and a lifting module, the main body module comprises a bottom frame and two mounting rails, a plurality of supporting assemblies are arranged at the top of the bottom frame, and the two mounting rails are arranged between the tops of the supporting assemblies respectively; the lifting module comprises a bottom plate, two moving seats are movably connected to the interior of the bottom plate, a plurality of sliding assemblies are arranged on the tops of the two moving seats, and isosceles trapezoid plates are arranged between the two moving seats and the sliding assemblies; through the arrangement of a sliding assembly, an isosceles trapezoid plate, a longitudinal plate, a first locking assembly, a second locking assembly and a linkage assembly, when the device is used, the middle of the device can be supported and cannot collapse, through cooperation of all the parts, when a driving assembly is damaged, the whole device can also keep the set height, and the device is convenient to use. And the working stability of the shield tunneling machine is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of shield machines, and more specifically, to a shield starting frame device with adjustable height. Background Art

[0002] A shield machine is a special tunneling equipment with the shield method as the core. The shield machine wraps the working surface with a fully enclosed steel shield, and synchronously completes the assembly of supporting segments during tunneling to form the main structure of the tunnel, while resisting soil pressure and groundwater seepage. It is different from the open construction method. Before the shield machine starts, the whole machine needs to be positioned on the starting frame and form a propulsion system with the reaction frame and the hole reinforcement structure to ensure that the equipment starts tunneling along the designed axis.

[0003] According to the search, the patent with the patent number CN217783535U discloses a lifting starting adjustment bracket device, which includes a platform vehicle. On the platform of the platform vehicle, there are a fixed starting frame body and a split lifting frame body arranged oppositely. The split lifting frame body includes a fixed platform frame and a lifting sub-platform frame. The lifting sub-platform frame can move up and down relative to the fixed platform frame under the action of a lifting driving member. The fixed starting frame body and the split lifting frame body arranged oppositely are used to support the segments. Under the action of the lifting driving member, a lifting platform frame slightly larger than the segment ring width is separated in the middle of the split lifting frame body, solving the problems in the prior art that due to the presence of a screw conveyor, a mud discharge pipe, and connection pipelines between the shield body tail of the pipe jacking machine and the rear support, the segment assembly is hindered, resulting in an increased safety risk, great operation difficulty, and low efficiency.

[0004] In view of the above related technologies, the current starting frame is usually in the above state. When the height needs to be adjusted, cylinders are used to support both sides of the bottom of the starting frame body. However, this lifting method is not stable, and the pile body easily causes the bottom of the starting frame to be suspended, and the bottom of the starting frame cannot be effectively supported, which easily causes the base to be deformed in the follow-up. And it is not convenient to lock the height after the starting frame is raised to the specified height. If the driving lifting component is damaged, it is easy to cause the starting frame to collapse and pose a safety hazard. Therefore, a shield starting frame device with adjustable height is proposed. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a shield starting frame device with adjustable height, and adopts the following technical solutions: An adjustable-height shield starting frame device, comprising a main body module and a lifting module. The main body module includes a chassis and two installation rails. A plurality of support components are arranged at the top of the chassis. The two installation rails are respectively arranged between the tops of the plurality of support components. The lifting module includes a bottom plate. Two moving seats are movably connected inside the bottom plate. A plurality of sliding components are arranged at the tops of the two moving seats. An isosceles trapezoidal plate is arranged between the two moving seats and the plurality of sliding components. A longitudinal plate is arranged at the bottom of the isosceles trapezoidal plate. A first locking component is arranged between each of the two moving seats and the longitudinal plate. A second locking component is arranged between each of the two moving seats and the top of the bottom plate. Linkage components are arranged inside each of the two moving seats. The two linkage components are respectively connected to one of the first locking components and the second locking component. Driving components are arranged on both sides of the bottom plate. The two driving components are respectively connected to the opposite sides of the two moving seats. The chassis is arranged on the top of the isosceles trapezoidal plate. A plurality of bolts are connected between the top of the isosceles trapezoidal plate and the chassis in a threaded manner.

[0006] Further, the first locking component includes a plurality of first moving slots all opened on one side of one of the moving seats. A connecting first locking rod is movably connected inside each of the plurality of first moving slots. A first locking slot is opened on one side of the longitudinal plate. One end of each of the plurality of first locking rods is movably connected inside the first locking slot. A first spring is connected between the other ends of the plurality of first locking rods and the inside of the plurality of first moving slots. A first pulling rope is connected to the other ends of the plurality of first locking rods.

[0007] Further, the second locking component includes a second moving slot opened at the bottom of one of the moving seats. A second locking rod is movably connected inside each of the plurality of second moving slots. A second locking slot is opened on one side of the bottom inner wall of the bottom plate. The bottom ends of the plurality of second locking rods are movably connected inside the second locking slot. A second spring is fixedly connected between the top ends of the plurality of second locking rods and the top of the inner wall of the plurality of second moving slots. A second pulling rope is fixedly connected to the top ends of the plurality of second locking rods.

[0008] Further, the sliding component includes a T-shaped plate fixedly connected to the top of one of the moving seats. A T-shaped sliding slot is opened on one side of the bottom of the isosceles trapezoidal plate. The T-shaped plate is slidably connected inside the T-shaped sliding slot. A plurality of sliding rollers are movably connected to the top of the T-shaped plate. The outer surfaces of the plurality of sliding rollers are all in contact with the top of the inner wall of the T-shaped sliding slot.

[0009] Further, the driving component includes a frame plate. An air cylinder is fixedly connected inside the frame plate. The output shaft of the air cylinder is fixedly connected with a moving block. Two L-shaped limiting plates are fixedly connected to one side of one of the moving seats. The moving block is movably connected inside the two L-shaped limiting plates.

[0010] Further, the driving assembly further includes a sleeve block fixedly connected to one side of the bottom plate. The rack plate is movably inserted into the sleeve block, and a bolt pin is threadedly connected between the sleeve block and the interior of the rack plate.

[0011] Further, the linkage assembly includes a rectangular groove opened in one of the moving seats. A plurality of the second draw ropes and a plurality of the first draw ropes all extend into the rectangular groove. A long rod is rotatably connected to the interior of the rectangular groove. One end of the long rod extends outside one of the moving seats. A plurality of connecting rollers are fixedly connected to the outer surface of the long rod. The plurality of connecting rollers are respectively connected to one of the second draw ropes and one of the first draw ropes. A rotating rudder is fixedly connected to one end of the long rod.

[0012] Further, the linkage assembly further includes a ratchet wheel fixedly connected to the outer surface of the long rod. The ratchet wheel is located outside one of the moving seats. A ratchet tooth and a movable spring are movably connected to the outer surface of one of the moving seats. One end of the ratchet tooth is movably connected to the outer surface of the ratchet wheel. One end of the movable spring is fixedly connected to the outer surface of the ratchet tooth.

[0013] Further, the support assembly includes two triangular support frames fixedly connected to the top of the chassis. The mounting rail is arranged between the tops of the two triangular support frames. A support rod is fixedly connected between the two triangular support frames. Connecting plates are arranged on the inner walls of the two triangular support frames. A hollow sleeve is hinged to the outer surface of the connecting plate. One end of the hollow sleeve is rotatably connected to an adjusting block. A threaded rod is threadedly connected to the interior of the adjusting block. One end of the threaded rod is fixedly connected to a support block. The support block contacts the support rod.

[0014] Further, the support assembly further includes two card slots respectively opened in the two triangular support frames. A clamping block is movably connected to the interior of each of the two card slots. The two clamping blocks are both fixedly connected to the connecting plate.

[0015] In summary, the present invention includes the following beneficial technical effects: (1) Through the settings of the sliding assembly, isosceles trapezoidal plate, longitudinal plate, first locking assembly, second locking assembly and linkage assembly, when the present device is in use, the middle part can be supported and will not collapse. And through the cooperation between the components, when the driving assembly is damaged, the overall height can also be kept stable, ensuring the stability of the shield machine during operation; (2) Through the settings of the long rod, connecting rollers, rotating rudder, ratchet wheel and ratchet teeth, the linkage assembly can drive the first locking assembly and the second locking assembly simultaneously, which is convenient for the staff to operate and improves the convenience of device operation; (3) Through the settings of the clamping block, clamping groove, hollow sleeve, adjusting block, threaded rod and support rod, the support component of the present invention can enhance the support strength, and at the same time, the support component can be disassembled and assembled as needed, which is more convenient for the staff to use. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the moving seat of the present invention; Figure 3 It is a schematic diagram of the structure of the sliding component of the present invention; Figure 4 It is a schematic diagram of the structure of the linkage component, the first locking component and the second locking component of the present invention; Figure 5 For the present invention Figure 4 The enlarged structure diagram at A in; Figure 6 For the present invention Figure 4 The enlarged structure diagram at B in; Figure 7 It is a schematic diagram of the structure of the driving component of the present invention; Figure 8 It is a schematic diagram of the structure of the support component of the present invention; Figure 9 It is a schematic diagram of the position of the second locking rod of the present invention.

[0017] Explanation of the reference numerals in the drawings: 100, main body module; 110, chassis; 120, support component; 121, clamping groove; 122, connecting plate; 123, hollow sleeve; 124, adjusting block; 125, threaded rod; 126, support block; 127, support rod; 128, clamping block; 130, mounting rail; 200, lifting module; 210, bottom plate; 220, moving seat; 230, sliding component; 231, T-shaped plate; 232, T-shaped sliding groove; 233, sliding roller; 240, isosceles trapezoidal plate; 250, longitudinal plate; 260, first locking component; 261, first locking groove; 262, first locking rod; 263, first spring; 264, first pull rope; 270, second locking component; 271, second locking rod; 272, second spring; 273, second locking groove; 274, second pull rope; 280, linkage component; 281, long rod; 282, connecting roller; 283, rotating rudder; 284, ratchet; 285, ratchet teeth; 286, movable spring; 290, driving component; 291, frame plate; 292, cylinder; 293, movable block; 294, L-shaped limiting plate; 295, sleeve block; 296, bolt pin. Detailed Description of the Invention

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] The following will further describe the present invention in detail with reference to the Figures 1-9 accompanying drawings.

[0022] Please refer to Figures 1-9, An adjustable-height shield starting frame device, comprising a main body module 100 and a lifting module 200. The main body module 100 includes a chassis 110 and two mounting rails 130. A plurality of support components 120 are provided on the top of the chassis 110. The two mounting rails 130 are respectively arranged between the tops of the plurality of support components 120. The lifting module 200 includes a bottom plate 210. Two moving seats 220 are movably connected inside the bottom plate 210. A plurality of sliding components 230 are provided on the tops of the two moving seats 220. An isosceles trapezoidal plate 240 is arranged between the two moving seats 220 and the plurality of sliding components 230. A longitudinal plate 250 is provided at the bottom of the isosceles trapezoidal plate 240. A first locking component 260 is arranged between each of the two moving seats 220 and the longitudinal plate 250. A second locking component 270 is arranged between the tops of the two moving seats 220 and the bottom plate 210. Linkage components 280 are arranged inside the two moving seats 220. The two linkage components 280 are respectively connected to one of the first locking component 260 and the second locking component 270. Driving components 290 are arranged on both sides of the bottom plate 210. The two driving components 290 are respectively connected to the opposite sides of the two moving seats 220. The chassis 110 is arranged on the top of the isosceles trapezoidal plate 240. A plurality of bolts are threadedly connected between the top of the isosceles trapezoidal plate 240 and the chassis 110.

[0023] During the use process, by opening the two driving components 290, the two driving components 290 will drive the two moving seats 220 to approach each other. The plurality of sliding components 230 cooperate with the two moving seats 220 approaching each other to push the isosceles trapezoidal plate 240 to rise. During the rising process of the isosceles trapezoidal plate 240, the longitudinal plate 250 will be driven to rise. At this time, the first locking component 260 will move on the outer surface of the longitudinal plate 250, and at the same time, the second locking component 270 moves at the bottom of the inner wall of the bottom plate 210. After the chassis 110 rises to the specified height, the driving components 290 are closed. The isosceles trapezoidal plate 240 cannot rise through the sliding components 230. The first locking component 260 supports the bottom of the isosceles trapezoidal plate 240 and at the same time restricts the isosceles trapezoidal plate 240 from descending, while the second locking component 270 will restrict the two moving seats 220 from moving outwards, thereby improving the stability of the device after rising in height, and at the same time ensuring that the height will not collapse even if the driving components 290 are damaged when the subsequent shield machine moves on the mounting rails 130, thus guaranteeing the safety of shield machine construction. During disassembly, first disassemble the driving components 290, then rotate the two linkage components 280 to drive the first locking component 260 and the second locking component 270 to be respectively away from the longitudinal plate 250 and the bottom plate 210, and then push the other two moving seats 220 outwards to withdraw from the bottom plate 210, so that the sliding components 230 are separated from the isosceles trapezoidal plate 240 at the same time, making the device convenient for disassembly and assembly.

[0024] The first locking assembly 260 includes a plurality of first moving slots all opened on one side of one of the moving seats 220. A connecting first locking rod 262 is movably connected inside each of the plurality of first moving slots. A first locking slot 261 is opened on one side of the longitudinal plate 250. One end of each of the plurality of first locking rods 262 is movably connected inside the first locking slot 261. A first spring 263 is connected between the other end of each of the plurality of first locking rods 262 and the inside of each of the plurality of first moving slots. A first pulling rope 264 is connected to the other end of each of the plurality of first locking rods 262. The second locking assembly 270 includes a second moving slot opened at the bottom of one of the moving seats 220. A second locking rod 271 is movably connected inside each of the plurality of second moving slots. A second locking slot 273 is opened on one side of the bottom inner wall of the bottom plate 210. The bottom end of each of the plurality of second locking rods 271 is movably connected inside the second locking slot 273. A second spring 272 is fixedly connected between the top end of each of the plurality of second locking rods 271 and the top of the inner wall of each of the plurality of second moving slots. A second pulling rope 274 is fixedly connected to the top end of each of the plurality of second locking rods 271. The sliding assembly 230 includes a T-shaped plate 231 fixedly connected to the top of one of the moving seats 220. A T-shaped sliding slot 232 is opened on one side of the bottom of the isosceles trapezoidal plate 240. The T-shaped plate 231 is slidably connected inside the T-shaped sliding slot 232. A plurality of sliding rollers 233 are movably connected to the top of the T-shaped plate 231. The outer surface of each of the plurality of sliding rollers 233 contacts the top of the inner wall of the T-shaped sliding slot 232. The driving assembly 290 includes a frame plate 291. A cylinder 292 is fixedly connected inside the frame plate 291. The output shaft of the cylinder 292 is fixedly connected to a movable block 293. Two L-shaped limiting plates 294 are fixedly connected to one side of one of the moving seats 220. The movable block 293 is movably connected inside the two L-shaped limiting plates 294. The driving assembly 290 further includes a sleeve block 295 fixedly connected to one side of the bottom plate 210. The frame plate 291 is movably inserted inside the sleeve block 295. A bolt pin 296 is threadedly connected between the sleeve block 295 and the inside of the frame plate 291.

[0025] By opening two active blocks 293, the two active blocks 293 will push two moving seats 220 closer to each other through the active blocks 293. A plurality of T-shaped plates 231 will slide inside the T-shaped sliding grooves 232, and at the same time, the sliding rollers 233 will roll inside the T-shaped sliding grooves 232. Cooperating with the two moving seats 220 moving closer to each other to push the isosceles trapezoidal plate 240 to rise. During the rising process of the isosceles trapezoidal plate 240, it will drive the longitudinal plate 250 to rise. At this time, the first locking rod 262 will move on the outer surface of the first locking groove 261, and at the same time, the second locking rod 271 will move inside the second locking groove 273. After the chassis 110 rises to the specified height, the active block 293 is closed. Through the cooperation of the T-shaped plate 231, the T-shaped sliding groove 232 and the sliding roller 233, the isosceles trapezoidal plate 240 can be restricted from rising. The first locking rod 262 supports the longitudinal plate 250 through the cooperation with the first locking groove 261, avoiding the collapse caused by the lack of support at the bottom of the isosceles trapezoidal plate 240, and at the same time restricting the isosceles trapezoidal plate 240 from descending. And the second locking groove 273 cooperating with the second locking rod 271 will restrict the two moving seats 220 from moving outward, thereby improving the stability of the device after rising to a certain height.

[0026] The linkage assembly 280 includes a rectangular groove opened inside one of the moving seats 220. A plurality of second pull ropes 274 and a plurality of first pull ropes 264 both extend into the interior of the rectangular groove. A long rod 281 is rotatably connected inside the rectangular groove. One end of the long rod 281 extends outside one of the moving seats 220. A plurality of connecting rollers 282 are fixedly connected to the outer surface of the long rod 281. The plurality of connecting rollers 282 are respectively connected to one of the second pull ropes 274 and one of the first pull ropes 264. One end of the long rod 281 is fixedly connected with a rotating rudder 283. The linkage assembly 280 further includes a ratchet wheel 284 fixedly connected to the outer surface of the long rod 281. The ratchet wheel 284 is located outside one of the moving seats 220. The outer surface of one of the moving seats 220 is movably connected with a ratchet tooth 285 and a movable spring 286. One end of the ratchet tooth 285 is movably connected to the outer surface of the ratchet wheel 284. One end of the movable spring 286 is fixedly connected to the outer surface of the ratchet tooth 285.

[0027] Rotating the two rotating rudders 283 drives the long rod 281 to rotate. The rotation of the long rod 281 will drive a plurality of long rods 281 to rotate. At this time, the connecting rollers 282 respectively pull the second locking rod 271 and the first locking rod 262 through the first pull rope 264 and the second pull rope 274, so that the second locking rod 271 and the first locking rod 262 are respectively away from the first locking rod 262 and the second locking groove 273. Then release the rotating rudder 283. Through the cooperation of the ratchet tooth 285 and the ratchet wheel 284, the long rod 281 cannot rotate and reset, which is convenient for subsequent disassembly. The linkage assembly 280 drives the first locking assembly 260 and the second locking assembly 270 at the same time, which is convenient for the staff to operate.

[0028] The support assembly 120 includes two triangular support frames fixedly connected to the top of the chassis 110. The mounting rail 130 is arranged between the tops of the two triangular support frames. A support rod 127 is fixedly connected between the two triangular support frames. Connecting plates 122 are arranged on the inner walls of the two triangular support frames. A hollow sleeve 123 is hinged to the outer surface of the connecting plate 122. One end of the hollow sleeve 123 is rotatably connected to an adjustment block 124. A threaded rod 125 is threadedly connected to the inside of the adjustment block 124. One end of the threaded rod 125 is fixedly connected to a support block 126. The support block 126 contacts the support rod 127. The support assembly 120 further includes two card slots 121 respectively formed inside the two triangular support frames. Two clamping blocks 128 are movably connected to the inside of the two card slots 121. The two clamping blocks 128 are both fixedly connected to the connecting plate 122.

[0029] When the main body module 100 is in use, the triangular support frames achieve the support effect. The support effect of the triangular support frames is improved through the connecting plate 122, the hollow sleeve 123, the threaded rod 125 and the support rod 127, so that the support strength of the triangular support frames is improved. By rotating the adjustment block 124 to drive the threaded rod 125 into the inside of the hollow sleeve 123, the threaded rod 125 is separated from the support rod 127. Then, the clamping block 128 is withdrawn from the card slot 121, so that the support assembly 120 can be disassembled, so that the support assembly 120 can be disassembled and assembled as needed, which is more convenient for the staff to use.

[0030] The implementation principle of the embodiment of the present invention is as follows: During use, by opening two movable blocks 293, the two movable blocks 293 will push two movable seats 220 closer to each other through the movable blocks 293. A plurality of T-shaped plates 231 will slide inside the T-shaped chute 232, and at the same time, the sliding rollers 233 will roll inside the T-shaped chute 232. Cooperating with the two movable seats 220 pushing closer to each other to drive the isosceles trapezoidal plate 240 to rise. During the rising process of the isosceles trapezoidal plate 240, it will drive the longitudinal plate 250 to rise. At this time, the first locking rod 262 will move on the outer surface of the first locking groove 261, and at the same time, the second locking rod 271 will move inside the second locking groove 273. After the chassis 110 rises to the specified height, close the movable block 293. Through the cooperation of the T-shaped plate 231, the T-shaped chute 232 and the sliding roller 233, the isosceles trapezoidal plate 240 can be restricted from rising. The first locking rod 262 supports the longitudinal plate 250 through the cooperation with the first locking groove 261, preventing the bottom of the isosceles trapezoidal plate 240 from collapsing due to lack of support, and at the same time restricting the isosceles trapezoidal plate 240 from descending. The second locking groove 273 cooperates with the second locking rod 271 to restrict the two movable seats 220 from moving outwards, thereby improving the stability of the device after rising to a certain height. At the same time, when the subsequent shield machine moves on the installation rail 130, even if the movable block 293 is damaged and the output shaft is in an active state, the height of the shield machine will not collapse, thus ensuring the safety of shield machine construction. During disassembly, first remove the bolt pin 296, and then pull out the mounting plate 291 from the sleeve block 295 to disassemble the cylinder 292. Then rotate the two rotating rudders 283 to drive the long rod 281 to rotate. The rotation of the long rod 281 will drive a plurality of long rods 281 to rotate. At this time, the connecting rollers 282 will pull the second locking rod 271 and the first locking rod 262 respectively through the first pull rope 264 and the second pull rope 274, so that the second locking rod 271 and the first locking rod 262 are respectively away from the first locking rod 262 and the second locking groove 273. Then release the rotating rudder 283, and through the cooperation of the ratchet teeth 285 and the ratchet wheel 284, the long rod 281 cannot rotate and reset, which is convenient for subsequent disassembly. Push the two movable seats 220 outwards, so that the two movable seats 220 are withdrawn from the bottom plate 210, separating the T-shaped plate 231 from the isosceles trapezoidal plate 240, making the device easy to disassemble and assemble, convenient for assembly and use. When the main body module 100 is in use, the triangular support frame realizes the support effect. By means of the connecting plate 122, the hollow sleeve 123, the threaded rod 125 and the support rod 127, the support effect of the triangular support frame is improved, so that the support strength of the triangular support frame is enhanced. By rotating the adjustment block 124 to drive the threaded rod 125 to retract into the hollow sleeve 123, the threaded rod 125 is separated from the support rod 127, and then the block 128 is withdrawn from the card slot 121, and the support assembly 120 can be disassembled, so that the support assembly 120 can be disassembled and assembled according to needs, which is more convenient for the staff to use.

[0031] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An adjustable-height shield starting frame device, comprising a main body module (100) and a lifting module (200), characterized in that: The main body module (100) includes a chassis (110) and two mounting rails (130). A plurality of support components (120) are provided on the top of the chassis (110), and the two mounting rails (130) are respectively arranged between the tops of the plurality of support components (120); The lifting module (200) includes a bottom plate (210). Two moving seats (220) are movably connected inside the bottom plate (210). A plurality of sliding components (230) are provided on the tops of the two moving seats (220). An isosceles trapezoidal plate (240) is arranged between the two moving seats (220) and the plurality of sliding components (230). A longitudinal plate (250) is provided at the bottom of the isosceles trapezoidal plate (240). A first locking component (260) is arranged between each of the two moving seats (220) and the longitudinal plate (250). A second locking component (270) is arranged between the tops of the two moving seats (220) and the bottom plate (210). A linkage component (280) is arranged inside each of the two moving seats (220). The two linkage components (280) are respectively connected to one of the first locking component (260) and the second locking component (270). Driving components (290) are provided on both sides of the bottom plate (210), and the two driving components (290) are respectively connected to the opposite sides of the two moving seats (220). The chassis (110) is arranged on the top of the isosceles trapezoidal plate (240), and a plurality of bolts are threadedly connected between the top of the isosceles trapezoidal plate (240) and the chassis (110).

2. The adjustable-height shield starting frame device according to claim 1, characterized in that: The first locking component (260) includes a plurality of first moving slots respectively opened on one side of one of the moving seats (220). A connecting first locking rod (262) is movably connected inside each of the plurality of first moving slots. A first locking slot (261) is opened on one side of the longitudinal plate (250). One end of each of the plurality of first locking rods (262) is movably connected inside the first locking slot (261). A first spring (263) is connected between the other ends of the plurality of first locking rods (262) and the inside of the plurality of first moving slots. A first pulling rope (264) is connected to the other end of each of the plurality of first locking rods (262).

3. The adjustable-height shield starting frame device according to claim 2, wherein: The second locking component (270) includes a second moving slot opened at the bottom of one of the moving seats (220). A second locking rod (271) is movably connected inside each of the plurality of second moving slots. A second locking slot (273) is opened on one side of the inner wall bottom of the bottom plate (210). The bottom ends of the plurality of second locking rods (271) are movably connected inside the second locking slot (273). A second spring (272) is fixedly connected between the top ends of the plurality of second locking rods (271) and the top of the inner wall of the plurality of second moving slots. A second pulling rope (274) is fixedly connected to the top end of each of the plurality of second locking rods (271).

4. The adjustable-height shield starting frame device according to claim 3, characterized in that: The sliding component (230) includes a T-shaped plate (231) fixedly connected to the top of one of the movable seats (220). One side of the bottom of the isosceles trapezoidal plate (240) is provided with a T-shaped sliding groove (232). The T-shaped plate (231) is slidably connected to the inside of the T-shaped sliding groove (232). A plurality of sliding rollers (233) are movably connected to the top of the T-shaped plate (231). The outer surfaces of the plurality of sliding rollers (233) are all in contact with the top of the inner wall of the T-shaped sliding groove (232).

5. The adjustable-height shield launching frame device according to claim 4, characterized in that: The driving component (290) includes a frame plate (291). A cylinder (292) is fixedly connected to the inside of the frame plate (291). The output shaft of the cylinder (292) is fixedly connected to a movable block (293). Two L-shaped limiting plates (294) are fixedly connected to one side of one of the movable seats (220). The movable block (293) is movably connected to the inside of the two L-shaped limiting plates (294).

6. The adjustable-height shield starting frame device according to claim 5, characterized in that: The driving component (290) further includes a sleeve block (295) fixedly connected to one side of the bottom plate (210). The frame plate (291) is movably inserted into the inside of the sleeve block (295). A bolt pin (296) is threadedly connected between the inside of the sleeve block (295) and the frame plate (291).

7. The adjustable-height shield starting frame device according to claim 6, characterized in that: The linkage component (280) includes a rectangular groove opened in one of the movable seats (220). A plurality of the second pull ropes (274) and a plurality of the first pull ropes (264) all extend into the inside of the rectangular groove. A long rod (281) is rotatably connected to the inside of the rectangular groove. One end of the long rod (281) extends to the outside of one of the movable seats (220). A plurality of connecting rollers (282) are fixedly connected to the outer surface of the long rod (281). The plurality of connecting rollers (282) are respectively connected to one of the second pull ropes (274) and one of the first pull ropes (264). A rotating rudder (283) is fixedly connected to one end of the long rod (281).

8. An adjustable-height shield starting frame device according to claim 7, characterized in that: The linkage component (280) further includes a ratchet wheel (284) fixedly connected to the outer surface of the long rod (281). The ratchet wheel (284) is located outside one of the movable seats (220). A ratchet tooth (285) and a movable spring (286) are movably connected to the outer surface of one of the movable seats (220). One end of the ratchet tooth (285) is movably connected to the outer surface of the ratchet wheel (284). One end of the movable spring (286) is fixedly connected to the outer surface of the ratchet tooth (285).

9. The adjustable-height shield starting frame device according to claim 6, characterized in that: The support assembly (120) includes two triangular support frames fixedly connected to the top of the chassis (110). The mounting rail (130) is arranged between the tops of the two triangular support frames. A support rod (127) is fixedly connected between the two triangular support frames. An adapter plate (122) is arranged on the inner walls of the two triangular support frames. A hollow sleeve (123) is hinged to the outer surface of the adapter plate (122). One end of the hollow sleeve (123) is rotatably connected to an adjustment block (124). A threaded rod (125) is threadedly connected to the inside of the adjustment block (124). One end of the threaded rod (125) is fixedly connected to a support block (126). The support block (126) contacts the support rod (127).

10. The adjustable-height shield starting frame device according to claim 6, characterized in that: The support assembly (120) further includes two card slots (121) respectively formed inside the two triangular support frames. Two clamping blocks (128) are movably connected to the inside of the two card slots (121). The two clamping blocks (128) are both fixedly connected to the adapter plate (122).

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