A microwave anechoic chamber-based wave-absorbing material hoisting system

Abstract

The present application relates to hoisting equipment technical field, specifically to a kind of wave-absorbing material hoisting system based on microwave darkroom, including hoisting drive mechanism, bottom support and the wave-absorbing wedge of being set in the top of bottom support, further including self-connection and separation mechanism, it is set on hoisting drive mechanism and bottom support, for hoisting drive mechanism and bottom support are automatically connected or separated;The self-connection and separation mechanism includes embracing component, it is set on bottom support;One-way plug-in component, it is set on hoisting drive mechanism, can reciprocate in and out along the inside of embracing component.The height position of one-way plug-in component is controlled by hoisting drive mechanism, when one-way plug-in component is inserted into embracing component and is in connecting position, the automatic connection of hoisting drive mechanism and bottom support can be realized, when one-way plug-in component is in separation position, can top pressure separation component drive embracing component to expand outward, the automatic separation of hoisting drive mechanism is realized.

Description

Technical Field

[0001] This invention relates to the field of hoisting equipment technology, specifically to a hoisting system for microwave absorbing materials based on a microwave anechoic chamber. Background Technology

[0002] In the field of vehicle electromagnetic compatibility testing, anechoic chambers are crucial testing environments. Their interior floors are typically covered with a large amount of wedge-shaped absorbing material (also known as absorbing wedges). This material is made of polyurethane foam infiltrated with a carbon adhesive solution, forming a cone-shaped carbon-containing sponge structure that effectively absorbs electromagnetic waves, ensuring the accuracy of test results. During vehicle testing, the absorbing wedges placed between the anechoic chamber door and the turntable must be temporarily moved out to allow the vehicle to smoothly enter the testing platform located in the center of the anechoic chamber. The frequent handling of the absorbing material becomes a critical step in the testing process.

[0003] Currently, traditional handling methods mainly rely on manual operation of forklifts or winches combined with hoisting equipment. In the winch and hoisting rope scheme, multiple wedges are usually fixed to a base for easy centralized handling. Due to the large area of ​​a single base, multiple lifting points are required to ensure hoisting stability. Furthermore, to avoid the influence of electromagnetic components on the test results, the connection of the lifting points is generally not electrically powered, but rather uses manual hooks. However, with this connection method, each operation requires the operator to manually connect or disconnect the hooks on the hoisting ropes from the lifting rods on the wedge base one by one. This process is not only cumbersome but also highly dependent on precise manual operation, resulting in low efficiency and difficulty in meeting the testing pace required for rapid vehicle passage. Therefore, there is an urgent need for a microwave anechoic chamber-based absorbing material hoisting system to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a microwave anechoic chamber-based microwave absorbing material hoisting system to address the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a microwave anechoic chamber-based microwave absorbing material hoisting system, comprising a hoisting drive mechanism, a base support, and a microwave absorbing wedge disposed on the top of the base support, and further comprising a self-connection and disconnection mechanism disposed on the hoisting drive mechanism and the base support, for automatically connecting or disconnecting the hoisting drive mechanism and the base support.

[0006] The self-connecting and disengaging mechanism includes a circumferential assembly disposed on the base; a one-way insertion assembly disposed on the hoisting drive mechanism, which can reciprocate in and out along the inside of the circumferential assembly; and a disengaging assembly used to drive the circumferential assembly to expand outward.

[0007] The unidirectional plug-in component has two working states: connected state and disconnected state. In the connected state, the wrapping component closes, and the unidirectional plug-in component moves to the connected position under the action of gravity and plugs into the wrapping component, achieving unidirectional rigid locking with the wrapping component. In the disconnected state, the unidirectional plug-in component moves to the disconnected position under the action of gravity, and the disconnected component is pressured to drive the wrapping component to expand outward, releasing the locking of the wrapping component on the unidirectional plug-in component.

[0008] Preferably, the hoisting system further includes an anechoic chamber, with a detection turntable located at the bottom inside the anechoic chamber, and the base placed at the bottom inside the anechoic chamber, on the side of the detection turntable near the outlet of the anechoic chamber.

[0009] Preferably, the hoisting drive mechanism includes a hoisting rope with a counterweight at one end and connected to a one-way plug-in assembly; and a winch for driving the hoisting rope to move the one-way plug-in assembly.

[0010] Preferably, the self-connection and disengagement mechanism further includes a connecting platform, which is fixedly connected to the base; the circumferential assembly includes circumferentially distributed circumferential tiles, which are movably installed on the top of the connecting platform, and the inner wall of the circumferential tiles is provided with evenly distributed locking ring teeth.

[0011] Preferably, the unidirectional insertion assembly includes a central cylinder with a unidirectional ratchet gear movably mounted on its periphery; when the central cylinder is inserted into the annular bearing from top to bottom, the unidirectional ratchet gear meshes with the locking ring teeth to achieve unidirectional rotation.

[0012] Preferably, the detachment component includes an expansion cone, which is movably connected to the central cylinder via a connecting rod, and the inner wall of the circumferential tile is provided with an expansion seat that cooperates with the expansion cone.

[0013] Preferably, the disengagement assembly further includes a locking rod, which is fixedly connected to the connecting rod, and a hook is provided at the end of the locking rod away from the connecting rod.

[0014] Preferably, the outer wall of the circumferential tile is provided with a guide groove that cooperates with the locking rod, and the bottom end of the guide groove is provided with a clearance groove; in the connected state, the hook of the locking rod abuts against the bottom wall of the guide groove.

[0015] Preferably, the overall shape of the guide groove is "Y", and when multiple circumferential tiles are combined, the tops of the guide grooves on the outer walls of adjacent circumferential tiles abut against each other.

[0016] Preferably, the locking rod is inclined at the connection point with the connecting rod, and the vertical section of the locking rod inside the circumferential tile abuts against the inner wall of the circumferential tile.

[0017] In the above technical solution, the beneficial effects of the present invention are as follows: the height position of the one-way plug-in component is controlled by the hoisting drive mechanism. When the one-way plug-in component is plugged into the circumferential component and is in the connection position, the hoisting drive mechanism and the base can be automatically connected. When the one-way plug-in component is in the disengagement position, the disengagement component can be pressed to drive the circumferential component to expand outward, thereby realizing the automatic disengagement of the hoisting drive mechanism. This greatly simplifies the previously cumbersome manual hooking and unhooking process. Moreover, it adopts a purely mechanical structure and does not require electric or electromagnetic components, thus fundamentally eliminating the electromagnetic interference that may be generated by the use of electric connection devices and ensuring that the pure electromagnetic environment inside the anechoic chamber is not affected.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0019] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall assembled structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the microwave anechoic chamber of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the self-connecting and disengaging mechanism of the present invention in conjunction with the base and the sound-absorbing wedge;

[0024] Figure 4 This is a schematic diagram of the overall structure of the self-connecting and disengaging mechanism of the present invention;

[0025] Figure 5 This is a top view of the self-connection and disengagement mechanism of the present invention.

[0026] Figure 6 This is a schematic diagram illustrating the structure of the assembled ring-shaped tiles in this invention.

[0027] Figure 7 This is a schematic diagram of the self-connection and disengagement mechanism of the present invention in the connected state;

[0028] Figure 8 This invention is presented in a schematic diagram illustrating the structure of the one-way ratchet gear and the locking ring gear engagement.

[0029] Figure 9 This is a schematic diagram of the self-connection and disengagement mechanism of the present invention in the disengagement state;

[0030] Figure 10 This invention is illustrated by a schematic diagram of the locking lever.

[0031] Figure 11 This is a schematic diagram of the unidirectional ratchet of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] In the diagram: 1. Anechoic chamber; 2. Detection turntable; 3. Base support; 4. Absorbing wedge; 5. Guide rail; 6. Traction vehicle; 7. Guide wheel; 8. Lifting rope; 9. Self-connecting and disengaging mechanism; 91. Connecting platform; 92. Guide rod; 93. Return spring; 94. Ring bearing; 95. Locking ring tooth; 96. Center cylinder; 97. One-way ratchet; 98. Connecting rod; 99. Expansion cone; 910. Expansion seat; 911. Guide groove; 912. Clearance groove; 913. Locking rod; 10. Counterweight; 11. Winch. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0035] Please see Figure 1-11 The present invention provides a technical solution: a microwave anechoic chamber-based microwave absorbing material hoisting system, including a hoisting drive mechanism, a base 3, and a microwave absorbing wedge 4 disposed on the top of the base 3, and also includes a self-connection and disconnection mechanism 9, which is disposed on the hoisting drive mechanism and the base 3, for automatically connecting or disconnecting the hoisting drive mechanism and the base 3.

[0036] The self-connecting and disengaging mechanism 9 includes a circumferential assembly disposed on the base 3; a one-way insertion assembly disposed on the hoisting drive mechanism, which can reciprocate in and out along the inside of the circumferential assembly; and a disengaging assembly used to drive the circumferential assembly to expand outward.

[0037] The unidirectional plug-in component has two working states: connected state and disconnected state. In the connected state, the surrounding components converge, and the unidirectional plug-in component moves to the connected position under the action of gravity and plugs into the surrounding components, achieving unidirectional rigid locking with the surrounding components. In the disconnected state, the unidirectional plug-in component moves to the disconnected position under the action of gravity, and the disconnected component is pressured to drive the surrounding components to expand outward, releasing the locking of the surrounding components on the unidirectional plug-in component.

[0038] Specifically, the hoisting drive mechanism is controlled to move the one-way plug-in component down to the connection position, so that the one-way plug-in component is inserted into the circumferential component, and the one-way plug-in component and the circumferential component achieve one-way rigid locking, that is, the hoisting drive mechanism and the base support 3 achieve rigid locking. At this time, the hoisting drive mechanism is controlled to drive the self-connection and release mechanism 9 and the base support 3 to move up synchronously, so as to hoist the base support 3. After the hoisting is completed, the hoisting drive mechanism is controlled to drive the base support 3 to fall back down, and is controlled to drive the one-way plug-in component down to the release position. The one-way plug-in component squeezes the release component, and the release component drives the circumferential component to expand outward, releasing the circumferential component from the one-way plug-in component. At this time, the hoisting drive mechanism is controlled to drive the one-way plug-in component to move up to achieve separation from the circumferential component, that is, to achieve automatic separation of the hoisting drive mechanism and the base support 3.

[0039] Compared with the prior art, the present invention controls the height position of the one-way plug-in component through the hoisting drive mechanism. When the one-way plug-in component is plugged into the circumferential component and is in the connection position, the hoisting drive mechanism and the base 3 can be automatically connected. When the one-way plug-in component is in the disengagement position, the disengagement component can be pressed to drive the circumferential component to expand outward, thereby realizing the automatic disengagement of the hoisting drive mechanism. This greatly simplifies the previously cumbersome manual hooking and unhooking process. Moreover, it adopts a purely mechanical structure and does not require electric or electromagnetic components, thus fundamentally eliminating the electromagnetic interference that may be generated by the use of electric connection devices and ensuring that the pure electromagnetic environment inside the anechoic chamber 1 is not affected.

[0040] As a preferred technical solution in this embodiment, the hoisting system also includes an anechoic chamber 1, with a detection turntable 2 located at the bottom inner side of the anechoic chamber 1. A base 3 is placed at the bottom inner side of the anechoic chamber 1 and is located on the side of the detection turntable 2 near the outlet of the anechoic chamber 1. Specifically, the detection turntable 2 is used to place the product to be tested, such as a vehicle to be tested; the base 3 is used to absorb electromagnetic waves to ensure the accuracy of the test results; the base 3 is hoisted by the hoisting system, opening the gap between the shielding door of the anechoic chamber 1 and the detection turntable 2 so that the vehicle to be tested can smoothly drive into the detection turntable 2.

[0041] As a preferred embodiment, the hoisting drive mechanism includes a hoisting rope 8 with a counterweight 10 at one end, connected to a one-way plug-in assembly; a winch 11 for driving the hoisting rope 8 to move the one-way plug-in assembly. Specifically, the winch 11 is installed on the ground opposite the shielding door of the anechoic chamber 1 for easy installation and maintenance, and also for easy detection of abnormal conditions of the winch 11. The hoisting drive mechanism also includes a guide rail 5, which is fixedly installed on the top of the anechoic chamber 1. A traction vehicle 6 is slidably installed inside the guide rail 5. One end of the traction vehicle 6 is fixedly connected to multiple sets of hoisting ropes 8, and the other end is connected to the winch 11 via a steel cable; a guide wheel 7 for changing the direction of the hoisting rope 8; the hoisting rope 8 passes through the top of the anechoic chamber 1 and into the interior of the anechoic chamber 1; the winch 11 is controlled to wind up the steel cable, thereby pulling the traction vehicle 6. The hoist moves inside the guide rail 5, thereby moving the hoisting rope 8 to lift the base 3. It should be noted that since the inner wall of the anechoic chamber 1 is equipped with a wave-absorbing wedge 4, if the winch 11 is installed on the top inner side of the anechoic chamber 1, it will inevitably damage the integrity of the wave-absorbing wedge 4. Therefore, this application places the winch 11 outside the anechoic chamber 1. At the same time, in order to avoid the metal cable affecting the test, the hoisting rope 8 is made of ultra-high molecular weight polyethylene cable. In addition, it should be noted that although the hoisting rope 8 passes through the top of the anechoic chamber 1, the prior art usually equips it with a non-metallic waveguide plate or uses a special shielding gasket for sealing. This structure allows physical passage while effectively attenuating and preventing electromagnetic wave leakage above a certain frequency band, thereby ensuring the overall shielding effectiveness of the anechoic chamber.

[0042] As a preferred embodiment, the self-connection and disengagement mechanism 9 further includes a connecting platform 91, which is fixedly connected to the base 3; the circumferential assembly includes circumferentially distributed circumferential tiles 94, which are movably mounted on the top of the connecting platform 91. The inner wall of the circumferential tiles 94 is provided with evenly distributed locking ring teeth 95. Specifically, the connecting platform 91 is fixedly connected to the base 3 by bolts; the top of the connecting platform 91 is provided with a guide rod 92 that cooperates with the circumferential tiles 94. The circumferential tiles 94 are movably fitted onto the outside of the guide rod 92. A return spring 93 is movably mounted on the outer side of the retaining tile 94. The return spring 93 applies elastic force to the retaining tile 94 to facilitate its reset. It should be noted that, since the retaining tile 94 needs to move axially along the guide rod 92 during operation, bullseye ball bearings are provided on both sides of the bottom of the retaining tile 94 to reduce the friction between the bottom of the retaining tile 94 and the top of the connecting platform 91. There are four sets of retaining tiles 94, and the four sets of retaining tiles 94 are arranged in a ring outside the central axis of the connecting platform 91.

[0043] As a preferred technical solution in this embodiment, the one-way insertion assembly includes a central cylinder 96, on which one-way ratchet gears 97 are movably mounted. When the central cylinder 96 is inserted into the annular bearing 94 from top to bottom, the one-way ratchet gears 97 and locking ring teeth 95 mesh with each other to achieve one-way rotation. Specifically, a number of one-way ratchet gears 97 are movably mounted on the lower part of the outer side of the central cylinder 96, and the number of one-way ratchet gears 97 is the same as the number of annular bearings 94. When the central cylinder 96 is moved down into the annular bearing 94 by the lifting rope 8, the one-way ratchet gears 97 on the periphery of the central cylinder 96 mesh with the locking ring teeth 95 on the inner wall of the annular bearing 94. And rotates when moving downwards; since the one-way ratchet 97 can only rotate in one direction, when the hoisting rope 8 drives the central cylinder 96 to move upwards, the one-way ratchet 97 cannot rotate in the opposite direction, that is, the rigid locking between the central cylinder 96 and the ring bearing 94 is achieved. At this time, the central cylinder 96 can drive the ring bearing 94 to move upwards, so as to realize the hoisting of the base support 3 and the wave-absorbing wedge 4; it should be noted that the working principle of the one-way rotation of the one-way ratchet 97 is a common existing technology, which will not be described in detail here; in order to improve the meshing effect between the one-way ratchet 97 and the locking ring tooth 95, the teeth on the periphery of the one-way ratchet 97 are rounded.

[0044] It should also be noted that, inside the anechoic chamber 1, multiple sets of lifting ropes 8 are used in conjunction with self-connecting and disengaging mechanisms 9 to hoist the base support 3. After long-term operation, different lifting ropes 8 will deform to different lengths. Affected by the deformation of the lifting ropes 8 and other factors, the ends of the lifting ropes 8 may not be at the same horizontal height, resulting in local tilting of the base support 3 during hoisting. The central cylinder 96 provided in this application is inserted into the ring tile 94, and the connection between the central cylinder 96 and the ring tile 94 is achieved through the meshing of the one-way ratchet 97 and the locking ring tooth 95. The central cylinder 96 can adaptively insert into the appropriate position of the ring tile 94 under the gravity of itself and the counterweight 10. That is, the central cylinder 96 in different self-connecting and disengaging mechanisms 9 is allowed to be locked at different height positions inside the corresponding ring tile 94, thereby compensating for the deformation of the lifting ropes 8 and thus achieving horizontal and stable hoisting of the base support 3.

[0045] As a preferred embodiment, the disengagement assembly includes an expansion cone 99, which is movably connected to the central cylinder 96 via a connecting rod 98. An expansion seat 910, which mates with the expansion cone 99, is provided on the inner wall of the circumferential tile 94. Specifically, the disengagement assembly also includes a locking rod 913, which is fixedly connected to the connecting rod 98. A hook is provided at the end of the locking rod 913 away from the connecting rod 98. Specifically, the connecting rod 98 is fixedly connected to the top of the expansion cone 99 and movably installed inside the central cylinder 96. The cross-sectional shape of the connecting rod 98 is polygonal. In the disengaged state, the central cylinder 96 moves to the disengaged position under the action of the lifting rope 8. The central cylinder 96, under its own weight and the weight of the counterweight 10, applies downward pressure to the connecting rod 98 and the expansion cone 99. The expansion cone 99 moves downward, squeezing the expansion seat 910, causing several circumferential tiles to... 94 expands outward, releasing the locking of the one-way ratchet 97 and the center cylinder 96 position on the ring bearing 94. During the downward movement of the expansion cone 99, the locking rod 913 moves downward synchronously, so that the hook of the locking rod 913 moves synchronously to the position of the clearance groove 912, providing space for the outward expansion of the ring bearing 94. In this state, the expansion cone 99 is engaged between several expansion seats 910, which can keep several ring bearings 94 in an outward expansion state. The center cylinder 96 moves upward under the drive of the suspension rope 8. Since the connecting rod 98 and the center cylinder 96 are movably connected, the center cylinder 96 will not drive the connecting rod 98 to move when it initially moves upward. After the center cylinder 96 moves upward and completely disengages from the ring bearing 94, it starts to drive the connecting rod 98, the expansion cone 99 and the locking rod 913 to move upward, so that several ring bearings 94 regroup for subsequent cyclic work.

[0046] As a preferred technical solution in this embodiment, the outer wall of the circumferential bearing 94 is provided with a guide groove 911 that cooperates with the locking rod 913, and the bottom end of the guide groove 911 is provided with a clearance groove 912. In the connected state, the hook of the locking rod 913 abuts against the bottom wall of the guide groove 911. Specifically, when the central cylinder 96, the expansion cone 99 and the locking rod 913 move down and are inserted into the interior of the circumferential bearing 94, the hook of the locking rod 913 can be engaged in the guide groove 911 on the outer wall of the circumferential bearing 94 and abut against the guide groove 911, thereby restricting the position of the circumferential bearing 94, restricting the outward expansion of the circumferential bearing 94 in the connected state, and ensuring the rigid connection between the one-way ratchet 97 and the circumferential bearing 94 in the connected state.

[0047] As a preferred technical solution in this embodiment, the overall shape of the guide groove 911 is "Y". When multiple ring tiles 94 are combined, the tops of the guide grooves 911 on the outer walls of adjacent ring tiles 94 abut against each other. Specifically, the number of locking rods 913 and one-way ratchet gears 97 is the same, and the four sets of locking rods 913 and one-way ratchet gears 97 are staggered. Since the cross-section of the connecting rod 98 is polygonal, there will be no axial rotation between the connecting rod 98, the expansion cone 99 and the central cylinder 96, that is, the included angle between adjacent locking rods 913 and one-way ratchet gears 97 is always fixed. When the central cylinder 96, the expansion cone 99 and the locking rod 913 are lowered and inserted into the inside of the ring tile 94, the locking rod 913 can be engaged with the guide groove 911 at the corresponding position. In step 11, the center cylinder 96 is guided by the inclined section of the upper half of the guide groove 911. When the center cylinder 96 moves down to the connection position, the hook at the end of the locking rod 913 can move down to the straight section of the lower half of the guide groove 911. This ensures that when the center cylinder 96 moves down to the disengagement position, the hook at the end of the locking rod 913 can move to the position of the clearance groove 912, providing space for the outward expansion of the circumferential tile 94. It should be noted that when the hook of the locking rod 913 moves along the inclined surface of the upper half of the guide groove 911, it will drive the locking rod 913, the expansion cone 99, the connecting rod 98, and the center cylinder 96 to have an axial rotation tendency. To avoid the twisting of the lifting rope 8, the center cylinder 96 is rotatably connected to the bottom of the counterweight block 10.

[0048] As a preferred technical solution in this embodiment, the locking rod 913 is inclined at the connection point with the connecting rod 98. The vertical section of the locking rod 913 located inside the circumferential tile 94 abuts against the inner wall of the circumferential tile 94. It should be noted that when the central cylinder 96, the expansion cone 99, and the locking rod 913 move down into the circumferential tile 94 for insertion, the inclined section at the connection point of the locking rod 913 and the connecting rod 98 guides the insertion of the inclined section into the circumferential tile 94, thereby ensuring that the central cylinder 96 can be smoothly inserted into the circumferential tile 94. Furthermore, since the vertical section of the locking rod 913 located inside the circumferential tile 94 abuts against the inner wall of the circumferential tile 94, after the locking rod 913 is inserted into the circumferential tile 94, it can be ensured that the central cylinder 96 and several circumferential tiles 94 are in a coaxial state.

[0049] All electrical components involved in this application are existing technologies. Those skilled in the art can select appropriate models of electrical components according to their needs. No restrictions or elaborations are made here. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. And according to the actual situation, appropriate controllers can be selected to meet control requirements.

[0050] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A microwave anechoic chamber-based microwave absorbing material hoisting system, comprising a hoisting drive mechanism, a base (3), and a microwave absorbing wedge (4) disposed on the top of the base (3), characterized in that, It also includes a self-connection and disconnection mechanism (9), which is set on the hoisting drive mechanism and the base (3) for automatically connecting or disconnecting the hoisting drive mechanism and the base (3); The self-connecting and disengaging mechanism (9) includes a circumferential assembly, which is disposed on the base (3); a one-way insertion assembly, which is disposed on the hoisting drive mechanism and can reciprocate in and out along the inside of the circumferential assembly; and a disengaging assembly, which is used to drive the circumferential assembly to expand outward. The unidirectional plug-in component has two working states: connected state and disconnected state. In the connected state, the wrapping component closes, and the unidirectional plug-in component moves to the connected position under the action of gravity and plugs into the wrapping component, achieving unidirectional rigid locking with the wrapping component. In the disconnected state, the unidirectional plug-in component moves to the disconnected position under the action of gravity, and the disconnected component is pressured to drive the wrapping component to expand outward, releasing the locking of the wrapping component on the unidirectional plug-in component.

2. The microwave absorbing material hoisting system based on a microwave anechoic chamber according to claim 1, characterized in that, The hoisting system also includes an anechoic chamber (1), with a detection turntable (2) provided at the bottom inside the anechoic chamber (1). The base (3) is placed at the bottom inside the anechoic chamber (1) and is located on the side of the detection turntable (2) near the outlet of the anechoic chamber (1).

3. The microwave absorbing material hoisting system based on a microwave anechoic chamber according to claim 1, characterized in that, The hoisting drive mechanism includes a hoisting rope (8), with a counterweight (10) at its end, and connected to a one-way plug-in assembly; and a winch (11) for driving the hoisting rope (8) to move the one-way plug-in assembly.

4. The microwave absorbing material hoisting system based on a microwave anechoic chamber according to claim 1, characterized in that, The self-connection and disengagement mechanism (9) also includes a connecting platform (91), which is fixedly connected to the base (3); the circumferential assembly includes circumferential tiles (94) distributed in a ring, which are movably installed on the top of the connecting platform (91), and the inner wall of the circumferential tiles (94) is provided with evenly distributed locking ring teeth (95).

5. The microwave absorbing material hoisting system based on a microwave anechoic chamber according to claim 4, characterized in that, The one-way insertion assembly includes a central cylinder (96) with a one-way ratchet (97) movably mounted on its periphery; when the central cylinder (96) is inserted into the ring bearing (94) from top to bottom, the one-way ratchet (97) meshes with the locking ring tooth (95) to achieve one-way rotation.

6. The microwave absorbing material hoisting system based on a microwave anechoic chamber according to claim 5, characterized in that, The detachment assembly includes an expansion cone (99) which is movably connected to the central cylinder (96) via a connecting rod (98), and the inner wall of the circumferential tile (94) is provided with an expansion seat (910) that mates with the expansion cone (99).

7. The microwave absorbing material hoisting system based on a microwave anechoic chamber according to claim 6, characterized in that, The disengagement assembly also includes a locking rod (913), which is fixedly connected to the connecting rod (98), and a hook is provided at the end of the locking rod (913) away from the connecting rod (98).

8. The microwave absorbing material hoisting system based on a microwave anechoic chamber according to claim 7, characterized in that, The outer wall of the circumferential tile (94) is provided with a guide groove (911) that cooperates with the locking rod (913), and a clearance groove (912) is provided at the bottom of the guide groove (911); in the connected state, the hook of the locking rod (913) abuts against the bottom wall of the guide groove (911).

9. The microwave absorbing material hoisting system based on a microwave anechoic chamber according to claim 8, characterized in that, The overall shape of the guide groove (911) is "Y". When multiple ring tiles (94) are combined, the tops of the guide grooves (911) on the outer walls of adjacent ring tiles (94) abut against each other.

10. A microwave anechoic chamber-based microwave absorbing material hoisting system according to claim 8, characterized in that, The locking rod (913) is inclined at the connection point with the connecting rod (98), and the vertical section of the locking rod (913) inside the circumferential tile (94) abuts against the inner wall of the circumferential tile (94).

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