A launchable door assembly

Abstract

The application relates to the field of rocket launching, and discloses a liftable door type launching device, which comprises a base, a fixed support frame, a hanging frame assembly, a rear hanging frame assembly and a guide launching frame located between the front hanging frame assembly and the rear hanging frame assembly, wherein the front hanging frame assembly and the rear hanging frame assembly are arranged in parallel and are hinged; a lifting assembly is arranged between the rear hanging frame assembly and the fixed support frame, the lifting assembly comprises a first lifting rod, a supporting sleeve and a rotating control part for moving the lifting rod in the supporting sleeve, the supporting sleeve is rotatably arranged on the fixed support frame, one end of the first lifting rod away from the lifting part penetrates through the supporting sleeve and is hinged with the lower end of the rear hanging frame assembly, and a vertical plane where the axis of the first lifting rod is located intersects with a vertical plane where the side of the rear hanging frame assembly close to the front hanging frame assembly is located. In the scheme, the sliding fit between the first lifting rod and the supporting sleeve is very stable and reliable, and can stably rotate the rear hanging frame assembly and the front hanging frame assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rocket launching, in particular to a liftable gantry launching device. BACKGROUND

[0002] The conventional gantry launching device is mostly in the form of a simple frame, and the frame structure is vertically arranged. When launching a rocket, the rocket is hoisted and then mounted on the frame structure, and then the rocket is ignited and launched.

[0003] Before the rocket is mounted and launched by the above method, the rocket is complicated to hoist and needs to be mounted in place by hoisting equipment, so the hoisting process is complicated, time-consuming and low in efficiency. The conventional gantry launching structure is relatively fixed, and the rocket needs to be hoisted by hoisting equipment, so the initial position of the rocket launching is relatively low above the ground. The angle adjustment process of the conventional gantry launching device before launching the rocket is complicated, needs to be adjusted and measured at the same time, and the operability is poor and the efficiency of adjusting the launching angle is low.

[0004] Therefore, in the prior art, a mounting bracket with one end being hinged is used, one end of the mounting bracket is hinged to the fixed bracket, the other end of the mounting bracket is connected to the rocket, after the rocket is mounted, the mounting bracket is pulled to rotate by the hydraulic cylinder between the mounting bracket and the fixed bracket, so that the rocket at the end of the mounting bracket is erected. During the rotation and erection process, the load size and direction at the connection between the hydraulic cylinder and the mounting bracket change, which causes the connection to shake or be unevenly stressed, causing the mounting bracket and the rocket to shake. If the shaking occurs during launching, it will directly affect the launching effect of the rocket. At the same time, when the mounting bracket is rotated to different angles, the hydraulic cylinder needs different oil pressure, and the change of the oil pressure will cause the supply and demand of the hydraulic oil in the hydraulic cylinder and the hydraulic system to be unstable, causing the hydraulic cylinder and the hydraulic system to be easily damaged. SUMMARY

[0005] In view of the deficiencies in the prior art, the present application provides a liftable gantry launching device to solve the problem that the connection between the hydraulic cylinder and the mounting bracket is prone to shaking or uneven stress, affecting the stable support of the rocket.

[0006] To achieve the above purpose, the basic scheme of the present application is as follows: a liftable gantry launching device, comprising a base and a fixed support frame fixedly installed on the base, further comprising a front hanger assembly, a rear hanger assembly and a launching guide frame located between the front hanger assembly and the rear hanger assembly, the front hanger assembly and the rear hanger assembly being arranged in parallel and being hinged; one end of the front hanger assembly and the rear hanger assembly is hinged to the fixed support frame;

[0007] The end of the rear suspension assembly away from the launcher is hinged to the upper end of the fixed support frame. A lifting assembly is provided between the rear suspension assembly and the fixed support frame. The lifting assembly includes a first lifting rod, a support sleeve, and a rotation control part that pushes the lifting rod to move within the support sleeve. The support sleeve is rotatably mounted on the fixed support frame. The end of the first lifting rod away from the lifting part passes through the support sleeve and is hinged to the lower end of the rear suspension assembly. The vertical plane containing the axis of the first lifting rod intersects the vertical plane containing the side of the rear suspension assembly closer to the front suspension assembly.

[0008] The technical principle of this invention is as follows: When assembling the rocket, the control unit controls the first lifting rod to move downward. At this time, the first lifting rod support sleeve pulls the lower end of the rear hanger assembly downward to rotate around the fixed support frame, so that the connecting frame drives the front hanger assembly to rotate synchronously around the fixed support frame. This causes the ends of the front hanger assembly and the rear hanger assembly away from the fixed support frame to rotate towards the ground, so that the rear hanger assembly, the front hanger assembly, and the launch guide frame are all close to a horizontal state, which facilitates the installation of the rocket onto the launch guide frame, facilitates personnel operation, and meets the rocket loading requirements.

[0009] After the rocket is completed, the control unit, the first lifting rod, and the support sleeve work together again. The upper end of the first lifting rod pushes the lower end of the rear pylon assembly to rotate around the fixed support frame through the first connector. This causes the connecting frame to drive the lifting frame and the guide slide to rotate synchronously around the fixed support frame, making the rear pylon assembly and the front pylon assembly rotate towards a vertical state, thereby increasing the rocket's launch height. During the above process, the sliding cooperation between the first lifting rod and the support sleeve is very stable and reliable, ensuring stable rotation of the rear pylon assembly and the front pylon assembly. At the same time, the rotation angle of the rear pylon assembly and the front pylon assembly relative to the fixed support frame can be controlled according to the rocket's launch angle, thereby adjusting the rocket's launch angle.

[0010] Furthermore, the first lifting rod is a lead screw, and the rotation control unit includes a first bevel gear, a first connector, and a first motor that drives the drive gear to rotate. The first bevel gear meshes with the side wall of the first lifting rod, and the axis of the first bevel gear is perpendicular to the axis of the first lifting rod. The first connector is installed between the first lifting rod and the rear hanger assembly, and the first connector is hinged to the rear hanger assembly. The first connector is rotatably connected to the end of the first lifting rod.

[0011] With the above settings, when controlling the rotation angle of the rear hanger assembly and the front hanger assembly relative to the fixed support frame, it is only necessary to control the forward or reverse rotation of the first bevel gear through the first motor. At this time, the first lifting rod meshing with the first bevel gear can rotate synchronously and move along the axial direction of the support sleeve, thereby stably pushing or pulling the rear hanger assembly to rotate. Through the threaded engagement between the first bevel gear and the first lifting rod, the displacement of the first lifting rod is more stable, and the rotation of the rear hanger assembly is also more stable and smooth.

[0012] Furthermore, a number of connecting rods are provided between the front hanger assembly and the rear hanger assembly. One end of the connecting rod is hinged to the front hanger assembly, and the other end of the connecting rod is hinged to the rear hanger assembly. Adjacent connecting rods are arranged in parallel. A lifting control unit is provided between the front hanger assembly and the fixed support frame to control the movement of the front hanger assembly along the plane where the rear hanger assembly is located.

[0013] With the above configuration, when the rear pylon assembly rotates, the hinged connection between the front and rear pylon assemblies via the connecting rod allows the front pylon assembly to rotate stably and synchronously with the rear pylon assembly. After the rear and front pylon assemblies rotate to the required angle, the lifting control unit controls the front pylon assembly to move along the plane where the rear pylon assembly is located, thereby lifting the front pylon assembly and controlling the height of the launch guide near the front pylon assembly, further adjusting the rocket's launch angle and improving the adjustability of the rocket's launch angle.

[0014] Furthermore, a connecting frame is provided between the end of the launch guide near the rocket nose and the front pylon assembly, and the other end of the launch guide is hinged to the rear pylon assembly. The connecting frame includes a first mounting rod and a second mounting rod. One end of the first mounting rod is hinged to the end of the front pylon assembly away from the fixed support frame, and the other end of the first mounting rod is hinged to one end of the second mounting rod. The other end of the second mounting rod is hinged to the launch guide.

[0015] With the above setup, the launch guide and the rocket's nose are raised by stretching the first and second mounting rods, thereby adjusting the rocket's elevation angle. The front pylon assembly, the first mounting rod, the second mounting rod, and the launch guide are hinged in sequence, which can further lift the rocket and achieve further adjustment of the rocket's launch angle.

[0016] Furthermore, there are two lifting components, and the two lifting components are symmetrically arranged along the center line of the rear hanger assembly on the side closest to the front hanger assembly.

[0017] With the above configuration, the two lifting components can provide stable support and transmission from both sides of the rear hanger assembly, making the rotation of the rear hanger assembly and the front hanger assembly more stable.

[0018] Furthermore, the front hanger assembly includes a lifting frame and a guide slide. The end of the lifting frame near the fixed support frame is slidably connected to the guide slide, the end of the guide slide away from the lifting frame is hinged to the fixed support frame, and the end of the lifting frame away from the guide slide is hinged to the second mounting rod. A portion of the connecting rods is hinged to the side wall of the lifting frame at the end away from the rear hanger assembly, and the other portion of the connecting rods is hinged to the side wall of the guide slide at the end away from the rear hanger assembly.

[0019] With the above settings, when controlling the lifting of the front pylon assembly, the lifting frame moves steadily upward along the guide slide under the limit of the guide slide, making the lifting of the rocket and launcher end more stable, and also improving the stability of the front pylon assembly.

[0020] Furthermore, the horizontal width of the rear hanger assembly is greater than that of the front hanger assembly, and one end of the connecting rod is hinged to the inner wall of the front hanger assembly, while the other end of the connecting rod is hinged to the outer wall of the lifting frame or guide rail.

[0021] With the above configuration, the wider rear hanger assembly can enhance the support strength of the front hanger assembly, making it easier for the front and rear hanger assemblies to rotate in tandem. Furthermore, the connecting rod is installed within the range of the rear hanger assembly, making the transmission of the connecting rod more convenient.

[0022] Furthermore, the lifting control unit includes a second lifting rod, a second bevel gear, a second connector, and a second motor that drives the drive gear to rotate. The second lifting rod is also a lead screw. The second bevel gear meshes with the side wall of the second lifting rod. The axis of the second bevel gear is perpendicular to the axis of the second lifting rod. The second connector is installed between the second lifting rod and the lifting frame. The second connector is fixedly connected to the lifting frame and rotatably connected to the end of the second lifting rod. The axis of the second lifting rod is parallel to the plane on the side of the front hanger assembly near the rear hanger assembly. The second motor is fixedly connected to the guide rail.

[0023] Once the launch altitude and wide-range angle of the rocket are determined, the launch angle can be fine-tuned. At this time, the second motor drives the second bevel gear to rotate in the forward direction. The second bevel gear then drives the second lifting rod to rotate in the reverse direction and move upward. Consequently, the upper end of the second lifting rod pulls the lifting frame upward along the guide slide through the second connector, reducing the overlap between the lower end of the guide slide and the guide slide. The first and second mounting rods then stretch the launch guide and the rocket's nose upward, thereby adjusting the rocket's elevation angle and achieving further adjustment of the rocket's launch angle. The rocket launch angle adjustment is convenient.

[0024] Furthermore, the length of the guide slide is 0.4-0.6 times the length of the lifting frame.

[0025] With the above settings, when the guide slide makes contact with the lifting frame, the overlap between the guide slide and the lifting frame is relatively large, which facilitates the improvement of the stability of the installation of the guide slide and the lifting frame. At the same time, it increases the upward movement height of the lifting frame when it is lifted, thereby increasing the controllable range of the rocket launch elevation angle.

[0026] Furthermore, it also includes a leveling unit, which includes a spirit level, a fixed support frame fixedly installed on the upper surface of the spirit level, and several leveling legs installed on the spirit level.

[0027] With the above settings, the fixed support frame is leveled using a level and leveling legs to ensure that the fixed support frame remains in a horizontal installation state. Attached Figure Description

[0028] Figure 1This is a structural diagram of a liftable gate-type launch device in the rocket installation state according to an embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of the front hanger assembly and the rear hanger assembly when rotated to a vertical state in an embodiment of the present invention.

[0030] Figure 3 This is a schematic diagram of the status of the liftable launch gate during rocket launch.

[0031] Figure 4 for Figure 3 Front view of the liftable gantry launcher.

[0032] In the above-mentioned attached figures: base 10, fixed support frame 101, front hanger assembly 20, lifting frame 201, guide slide frame 202, rear hanger assembly 30, launch guide frame 40, connecting rod 50, first lifting rod 601, first connector 602, first motor 603, support sleeve 604, second lifting rod 701, second connector 702, second motor 703, first mounting rod 801, second mounting rod 802, level 90, leveling leg 901, rocket 100. Detailed Implementation

[0033] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] This embodiment is basically as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment of the invention proposes a liftable gate-type launching device, including a base 10, a leveling unit, a fixed support frame 101 fixedly mounted on the base 10 by welding or bolts, a front hanger assembly 20, a rear hanger assembly 30, and a launch guide frame 40 located between the front hanger assembly 20 and the rear hanger assembly 30; as shown Figure 3As shown, the front hanger assembly 20 and the rear hanger assembly 30 are arranged vertically and parallel to each other. Several connecting rods 50 are provided between the front hanger assembly 20 and the rear hanger assembly 30. One end of each connecting rod 50 is hinged to the front hanger assembly 20, and the other end is hinged to the rear hanger assembly 30. Adjacent connecting rods 50 are arranged parallel to each other. Meanwhile, the front hanger assembly 20 includes a lifting frame 201 and a guide slide 202. The end of the lifting frame 201 near the fixed support frame 101 is slidably connected to the guide slide 202. The lower end of the lifting frame 202 is hinged to the fixed support frame 101, the upper end of the lifting frame 201 is hinged to the second mounting rod 802, the right end of a part of the connecting rod 50 is hinged to the outer wall of the lifting frame 201, and the right end of the other part of the connecting rod 50 is hinged to the outer wall of the guide slide 202; at the same time, a lifting control part is provided between the front hanger assembly 20 and the fixed support frame 101 to control the movement of the lifting frame 201 along the plane where the guide slide 202 is located, and a scale line is provided on the side wall of the lifting frame 201 to control the upward sliding height of the lifting frame 201.

[0035] like Figure 2 and Figure 3 As shown, the lower end of the rear hanger assembly 30 is hinged to the upper end of the fixed support frame 101. A lifting assembly is provided between the rear hanger assembly 30 and the fixed support frame 101. The lifting assembly includes a first lifting rod 601, a support sleeve 604, and a rotation control part that pushes the lifting rod to move within the support sleeve 604. The first lifting rod 601 is a lead screw. The rotation control part includes a first bevel gear, a first connector 602, and a first motor 603 that drives the drive gear to rotate. The support sleeve 604 is rotatably mounted on the fixed support frame 101. The first bevel gear meshes with the side wall of the first lifting rod 601. The axis of the first bevel gear is perpendicular to the axis of the first lifting rod 601. A first connector 602 is installed between the first lifting rod 601 and the rear hanger assembly 30. The first connector 602 is hinged to the rear hanger assembly 30 and rotatably connected to the end of the first lifting rod 601. The upper end of the first lifting rod 601 passes through the support sleeve 604 and is hinged to the lower end of the rear hanger assembly 30. The vertical plane containing the axis of the first lifting rod 601 intersects the vertical plane containing the side of the rear hanger assembly 30 closest to the front hanger assembly 20. Simultaneously, there are two lifting assemblies, and... Figure 4 As shown, the two lifting components are symmetrically arranged along the center line of the rear hanger assembly 30 near the front hanger assembly 20.

[0036] like Figure 3 and Figure 4As shown, the lifting control unit includes a second lifting rod 701, a second bevel gear, a second connector 702, and a second motor 703 that drives the drive gear to rotate. The second lifting rod 701 is also a lead screw. The second bevel gear meshes with the side wall of the second lifting rod 701. The axis of the second bevel gear is perpendicular to the axis of the second lifting rod 701. The second connector 702 is installed between the second lifting rod 701 and the front hanger assembly 20. The second connector 702 is fixedly connected to the lifting frame 201 by bolts and nuts. The second connector 702 is rotatably connected to the end of the second lifting rod 701. The axis of the second lifting rod 701 is parallel to the plane of the front hanger assembly 20 near the rear hanger assembly 30. The second motor 703 is fixedly connected to the guide rail 202 by bolts and nuts.

[0037] like Figure 1 and Figure 3 As shown, a connecting frame is provided between the upper end of the launcher 40 and the upper end of the lifting frame 201. The left end of the launcher 40 is hinged to the rear suspension assembly 30. The connecting frame includes a first mounting rod 801 and a second mounting rod 802. The upper end of the first mounting rod 801 is hinged to the lower side wall of the upper end of the lifting frame 201. The lower end of the first mounting rod 801 is hinged to the upper end of the second mounting rod 802. The lower end of the second mounting rod 802 is hinged to the launcher 40.

[0038] In addition, such as Figure 3 and 4 As shown, the horizontal width of the rear hanger assembly 30 is greater than the horizontal width of the front hanger assembly 20, and the left end of the connecting rod 50 is hinged to the inner wall of the front hanger assembly 20; the length of the guide slide 202 is 0.5 times the length of the lifting frame 201.

[0039] like Figure 1 As shown, the leveling unit includes a level 90, which is an EDA level 90. A fixed support frame 101 is welded to the upper surface of the level 90. A leveling support leg 901 is vertically installed at each of the four corners of the level 90. The leveling support leg 901 is an electric support leg. The electric support leg uses a T-shaped lead screw, which allows the electric support leg to lock freely and eliminates all safety problems caused by falling objects. The electric support leg can move only 0.01mm in one turn, which can fully meet the requirements of various complex working conditions.

[0040] In this embodiment, the liftable gate-type launching device is first used to level the fixed support frame 101 using a level 90 and leveling legs 901, ensuring that the fixed support frame 101 remains in a horizontal installation state. Then, the second motor 703 is controlled to drive the second bevel gear to rotate in the reverse direction. At this time, the second bevel gear drives the second lifting rod 701 to rotate and move downward in the forward direction. Then, the upper end of the second lifting rod 701 pulls the lifting frame 201 downward along the guide slide 202 through the second connector 702, so that the lower end of the guide slide 202 coincides with the inside of the guide slide 202, thereby realizing the lifting mechanism. The front pylon assembly 20 folds down; simultaneously, the first motor 603 drives the first bevel gear to rotate in the opposite direction. At this time, the first bevel gear drives the first lifting rod 601 to rotate in the forward direction. Then, the upper end of the first lifting rod 601 pulls the lower end of the rear pylon assembly 30 around the fixed support frame 101 through the first connector 602. At this time, the connector drives the lifting frame 201 and the guide slide 202 to rotate synchronously around the fixed support frame 101, so that the upper ends of the rear pylon assembly 30 and the front pylon assembly 20 drive the launcher 40 to move down, so that the entire liftable gantry launcher is in the position of... Figure 1 The rear pylon assembly 30, the front pylon assembly 20, and the launch guide 40 are all in a nearly horizontal position, which facilitates personnel operation and meets the loading requirements of rocket 100.

[0041] Then, the rocket 100 is installed on the launch guide 40, with the head of the rocket 100 near the front pylon assembly 20 and the tail of the rocket 100 near the rear pylon assembly 30. The rocket 100 is then lifted. During lifting, the first motor 603 drives the first bevel gear to rotate in the forward direction. At this time, the first bevel gear drives the first lifting rod 601 to rotate in the reverse direction. Then, the upper end of the first lifting rod 601 pushes the lower end of the rear pylon assembly 30 to rotate around the fixed support frame 101 through the first connector 602. This causes the connector to drive the lifting frame 201 and the guide slide 202 to rotate synchronously around the fixed support frame 101, so that the rear pylon assembly 30 and the front pylon assembly 20 rotate towards a vertical state. During this process, the rotation angle of the rear pylon assembly 30 and the front pylon assembly 20 relative to the fixed support frame 101 can be controlled according to the launch angle of the rocket 100, so as to achieve a preliminary large-range adjustment of the launch angle of the rocket 100.

[0042] Once the launch altitude and wide-range angle of rocket 100 are determined, the launch angle of rocket 100 can be finely adjusted. At this time, the second motor 703 drives the second bevel gear to rotate in the forward direction. The second bevel gear then drives the second lifting rod 701 to rotate in the reverse direction and move upward. Consequently, the upper end of the second lifting rod 701 pulls the lifting frame 201 upward along the guide slide 202 through the second connector 702, reducing the overlap between the lower end of the guide slide 202 and the guide slide 202. Under the lifting action of the lifting frame 201, the launch guide frame 40 and the head of rocket 100 are stretched upward by the first mounting rod 801 and the second mounting rod 802, thereby adjusting the elevation angle of rocket 100 and achieving further adjustment of the launch angle of rocket 100. During this process, the elevation angle of rocket 100 is controlled within the range of 0~45°.

[0043] In the above process, through the cooperation of the front pylon assembly 20, the rear pylon assembly 30, the fixed support frame 101, and the lifting assembly, the front pylon assembly 20 and the rear pylon assembly 30 can rotate around the fixed support frame 101, thereby achieving the purpose of stable and rapid adjustment of the launch altitude of the rocket 100. During this process, through the threaded engagement between the first bevel gear and the first lifting rod 601, the displacement of the first lifting rod 601 is made more stable, and the rotation of the rear pylon assembly 30 is also more stable and smooth. At the same time, through the cooperation of the second bevel gear and the second lifting rod 701, the upper end of the second lifting rod 701 can pull the lifting frame 201 upward along the guide slide 202 through the second connector 702. The first mounting rod 801 and the second mounting rod 802 stretch the launch guide frame 40 and the head of the rocket 100 upward, further adjusting the launch elevation angle of the rocket 100, and realizing the fine adjustment of the launch angle of the rocket 100. The adjustment of multiple angles better meets the complex and precise launch requirements of the rocket 100.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A liftable gate-type launching device, comprising a base and a fixed support frame fixedly mounted on the base, characterized in that, It also includes a front hanger assembly, a rear hanger assembly, and a launch guide frame located between the front hanger assembly and the rear hanger assembly. The front hanger assembly and the rear hanger assembly are arranged in parallel and hinged together. One end of the front hanger assembly and the rear hanger assembly is fixed to a hinged support frame. The rear suspension assembly is hinged to the upper end of the fixed support frame at one end away from the launcher frame. A lifting assembly is provided between the rear suspension assembly and the fixed support frame. The lifting assembly includes a first lifting rod, a support sleeve, and a rotation control part that pushes the lifting rod to move within the support sleeve. The support sleeve is rotatably mounted on the fixed support frame. The end of the first lifting rod away from the lifting part passes through the support sleeve and is hinged to the lower end of the rear suspension assembly. The vertical plane containing the axis of the first lifting rod intersects with the vertical plane containing the side of the rear suspension assembly closer to the front suspension assembly. The first lifting rod is a lead screw. The rotation control unit includes a first bevel gear, a first connector, and a first motor that drives the drive gear to rotate. The first bevel gear meshes with the side wall of the first lifting rod. The axis of the first bevel gear is perpendicular to the axis of the first lifting rod. The first connector is installed between the first lifting rod and the rear hanger assembly. The first connector is hinged to the rear hanger assembly and rotatably connected to the end of the first lifting rod. Several connecting rods are provided between the front hanger assembly and the rear hanger assembly. One end of the connecting rod is hinged to the front hanger assembly, and the other end of the connecting rod is hinged to the rear hanger assembly. Adjacent connecting rods are arranged in parallel. A lifting control unit is provided between the front hanger assembly and the fixed support frame to control the movement of the front hanger assembly along the plane where the rear hanger assembly is located. The front hanger assembly includes a lifting frame and a guide slide. The end of the lifting frame near the fixed support frame is slidably connected to the guide slide, the end of the guide slide away from the lifting frame is hinged to the fixed support frame, the end of the lifting frame away from the guide slide is hinged to the second mounting rod, a portion of the connecting rods away from the rear hanger assembly are hinged to the side wall of the lifting frame, and the other portion of the connecting rods away from the rear hanger assembly are hinged to the side wall of the guide slide. The lifting control unit includes a second lifting rod, a second bevel gear, a second connector, and a second motor that drives the drive gear to rotate. The second lifting rod is also a lead screw. The second bevel gear meshes with the side wall of the second lifting rod. The axis of the second bevel gear is perpendicular to the axis of the second lifting rod. The second connector is installed between the second lifting rod and the lifting frame. The second connector is fixedly connected to the lifting frame and rotatably connected to the end of the second lifting rod. The axis of the second lifting rod is parallel to the plane of the front hanger assembly near the rear hanger assembly. The second motor is fixedly connected to the guide rail.

2. The liftable gate-type launching device as described in claim 1, characterized in that, The launch guide frame is connected to the front pylon assembly at one end near the rocket nose, and the other end of the launch guide frame is hinged to the rear pylon assembly. The connecting frame includes a first mounting rod and a second mounting rod. One end of the first mounting rod is hinged to the end of the front pylon assembly away from the fixed support frame, and the other end of the first mounting rod is hinged to one end of the second mounting rod. The other end of the second mounting rod is hinged to the launch guide frame.

3. The liftable gate-type launching device as described in claim 2, characterized in that, The number of lifting components is two, and the two lifting components are symmetrically arranged along the center line of the rear hanger assembly near the front hanger assembly.

4. The liftable gate-type launching device as described in claim 3, characterized in that, The horizontal width of the rear hanger assembly is greater than that of the front hanger assembly, and one end of the connecting rod is hinged to the inner wall of the front hanger assembly, while the other end of the connecting rod is hinged to the outer wall of the lifting frame or guide slide.

5. A liftable gate-type launching device as described in claim 4, characterized in that, The length of the guide rail is 0.4-0.6 times the length of the lifting frame.

6. The liftable gate-type launching device as described in claim 5, characterized in that, It also includes a leveling unit, which includes a level, a fixed support frame is fixedly installed on the upper surface of the level, and the level is equipped with several leveling legs.

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