An assembled structure of a microwave darkroom

Abstract

The present application relates to the field of microwave darkroom, especially to a kind of assembling structure of microwave darkroom, a plurality of docking frames are installed on the outside of assembling plate, a pair of support rods are symmetrically installed in the middle of each docking frame, C-shaped clamping block assembly is arranged in the middle of each support rod, one side of C-shaped clamping block assembly is connected with pull rod, the other end of pull rod penetrates into the inside of assembling plate and is connected with tensioning mechanism.In the present application, four splicing surfaces of assembling plate integrate male-female head conversion connection mechanism composed of docking frame and C-shaped clamping block assembly, by rotating, C-shaped clamping block assembly can be recessed by changing linkage of swing arm mechanism, spring telescopic rod and other components, so that it is changed from male head to female head joint, during assembly, only need to adjust the interface of male-female head conversion connection mechanism of adjacent assembling plate, locking can be completed, which can effectively replace the complex process of traditional flange bolt penetrating hole by hole and tightening in turn, realize high-efficiency assembling between frame units, and improve work efficiency.

Description

Technical Field

[0001] This invention relates to the field of microwave anechoic chamber technology, and more particularly to an assembly structure for a microwave anechoic chamber. Background Technology

[0002] A microwave anechoic chamber is a specially designed electromagnetic measurement environment whose core functions include antenna parameter testing, electromagnetic compatibility (EMC) assessment, and radar wave scattering characteristic analysis.

[0003] The existing small and medium-sized microwave anechoic chambers are mainly composed of a metal shield, a microwave absorbing material layer, an installation frame, and a keel frame support structure. The whole is prefabricated and assembled, and the installation of the frame system is the key link in the construction of the anechoic chamber.

[0004] In existing technologies, frame installation typically employs a modular assembly process. First, a stable supporting frame is assembled from a keel skeleton to form the basic support structure. Then, wall panels are installed using connecting components such as through-wall bolts and connecting plates. Finally, the frame units of the inner layer of the structure are spliced ​​together one by one through flange connections to form a frame for installing metal shielding bodies and wave-absorbing material layers, ultimately forming a closed test space.

[0005] However, traditional splicing processes have significant technical drawbacks. Traditional frames require aligning the flanges on all four sides, a process that relies on manual measurement and repeated adjustments. Each frame unit requires bolt tightening on all four vertical sides (top, bottom, left, and right). Taking a small microwave anechoic chamber as an example, the number of fastener units required exceeds several hundred. The splicing process alone consumes a large amount of manpower and resources, significantly reducing construction efficiency. Furthermore, the installation quality decreases as the workload increases, and the construction quality cannot be guaranteed. At the same time, for small and medium-sized microwave anechoic chambers, frequent relocation and deployment to meet temporary testing needs are common occurrences, and traditional splicing structures cannot achieve rapid operation. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an assembly structure for a microwave anechoic chamber.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An assembly structure for a microwave anechoic chamber includes an assembly plate. Multiple docking frames are installed on the outer side of the assembly plate. A pair of support rods are symmetrically installed in the middle of each docking frame. Each support rod has a C-shaped locking block assembly in the middle. One side of the C-shaped locking block assembly is connected to a pull rod, and the other end of the pull rod passes through the interior of the assembly plate and is connected to a tensioning mechanism.

[0009] The C-shaped locking block assembly includes a pair of symmetrically arranged main blocks. Each main block has a constraint groove in the middle. A support rod passes through the interior of the constraint groove. A pair of rocker arms are symmetrically rotated and installed on one side of the support rod. The other end of the rocker arms is connected to a sliding groove opened in the inner wall of the constraint groove to achieve limited movement.

[0010] The support rod has symmetrical trigger grooves in the middle, and a connecting piece is installed in the trigger groove. A connecting rod is provided in the middle of the connecting piece. The connecting rod passes downward into the bottom side of the support rod and is rotatably connected to a pair of connecting rods. A locking piece is rotatably installed at the other end of each connecting rod. The locking piece is limited and installed on the outer wall of the support rod.

[0011] A pair of lifting plates are sleeved and installed in the middle of the support rod. The inner wall of the lifting plate is provided with a locking groove to fit the locking plate. In the natural state, the connecting rod is in the shape of "I" and the locking plates at both ends extend out of the support rod and are locked in the locking grooves opened in the inner wall of the lifting plate.

[0012] In addition, a preferred structure is that adjacent support rods are connected by a fixing plate, which is fixedly installed in the middle of the docking frame, and the middle of the fixing plate has a through hole to limit the assembly of the support rods.

[0013] Furthermore, in a preferred configuration, the support rod comprises a pair of identical rods connected to each other by interlocking toothed sleeves. Each rod consists of two interlocking telescopic sleeves, which can move freely in opposite directions. The support rod is connected to the telescopic sleeve of another adjacent support rod by interlocking toothed sleeves. A spring is installed inside the toothed sleeve, and the two ends of the spring are connected to the two rods respectively. A certain gap is left between the two adjacent interlocking toothed sleeves to allow for the opposite displacement of the support rods.

[0014] In addition, the preferred structure is that the assembly plate is square and has installation grooves on all four sides of the outer side of the plate. A docking frame is rotatably installed on one side of each installation groove, and docking grooves are symmetrically opened on both sides of the docking frame to assemble C-shaped locking block assemblies.

[0015] Furthermore, in a preferred configuration, the tensioning mechanism includes a planar threaded disc and a rack. The planar threaded disc is rotatably mounted at the center of the assembly plate via a bearing. A continuous threaded groove is formed on the inner wall of the planar threaded disc, which meshes with multiple racks. The racks are positioned and mounted in rack assembly slots formed on the inner wall of the assembly plate. A V-shaped rod is mounted in the middle of the rack, with both ends of the V-shaped rod extending outward and connecting to each tie rod.

[0016] In addition, a preferred structure is that insert posts are installed at the four corners of the outer side of the assembly plate, and the insert posts are used to connect with the slots opened at the four corners of the inner side of the functional plate. Multiple U-shaped slots are installed in the middle of the functional plate, and the U-shaped slots are used to connect with the connecting posts set in the middle of the V-shaped rod.

[0017] In addition, a preferred structure is that multiple spring telescopic rods are rotatably installed on one side of the inner wall of the mounting groove, and the other end of the spring telescopic rod passes through the docking frame and is rotatably connected to each main block through the extension piece. In the natural state, the spring telescopic rod and the main block 61 are perpendicular to each other, and the internal spring of the spring telescopic rod is compressed.

[0018] The spring telescopic rod includes a pair of main rods and auxiliary rods that are sleeved together. One end of the main rod is rotatably connected to the inner wall of the mounting groove, and the other end is sleeved with the auxiliary rod. The other end of the auxiliary rod passes through the docking frame and is rotatably connected to the extension piece. The main rod and auxiliary rod are connected by a spring to realize the telescopic reset operation.

[0019] In addition, a preferred structure is that one end of the main block is provided with a insert, the middle of the insert has an opening, the bottom of the opening is through and the width of the opening is equal to the thickness of the main block, and when adjacent assembly plates are connected, the main block is inserted into the opening accordingly.

[0020] Furthermore, in a preferred structure, one end of the support rod passes through the C-shaped locking block assembly and the docking frame and is connected to an arc-shaped limiting block. The arc-shaped limiting block corresponds to the rotating limiting grooves opened on the top and bottom walls of the mounting groove. Three arc-shaped limiting grooves are opened at a 90° angle on one side of the inner wall of the rotating limiting groove. The arc-shaped limiting grooves and the arc-shaped limiting block form a concave-convex locking mechanism. The support rod and the arc-shaped limiting block are connected by a pair of springs. The springs deform as the arc-shaped limiting block moves.

[0021] The beneficial effects of this invention are as follows:

[0022] In this invention, the four splicing surfaces of the assembly plate integrate a male-female head conversion connection mechanism composed of a docking frame and a C-shaped locking block assembly. By rotating the rocker arm mechanism, spring telescopic rod, and other components, the C-shaped locking block assembly is made to retract, thus transforming it from a male head to a female head connector. During assembly, only the male-female head conversion connection mechanism interfaces of adjacent assembly plates need to be adjusted accordingly to complete the locking. Compared with the traditional assembly operation of flange faces and fasteners, it can effectively replace the complex process of inserting flange bolts into holes one by one and tightening them sequentially, realizing high-efficiency assembly between frame units and improving work efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the assembled structure of a microwave anechoic chamber proposed in this invention after assembly.

[0024] Figure 2 This is a schematic diagram of the internal connection component structure of the functional board proposed in this invention;

[0025] Figure 3 This is a schematic diagram of the external structure of the assembly panel proposed in this invention;

[0026] Figure 4 This is a schematic diagram of the rack and pinion and the planar threaded disc connection proposed in this invention;

[0027] Figure 5 This is a schematic diagram of the female head assembly posture structure of the docking frame proposed in this invention;

[0028] Figure 6 This is a schematic diagram of the V-shaped rod connection structure proposed in this invention;

[0029] Figure 7 This is a schematic diagram of the splicing posture of adjacent assembled panels proposed in this invention;

[0030] Figure 8 This is a schematic diagram of the external structure of the docking frame proposed in this invention;

[0031] Figure 9 This is a schematic diagram of the docking frame and C-shaped locking block assembly structure proposed in this invention;

[0032] Figure 10 This is a schematic diagram of the internal structure (male connector assembly posture) of the C-shaped card block assembly proposed in this invention. Figure 1 ;

[0033] Figure 11 This is a schematic diagram of the internal structure (mother head assembly posture) of the C-shaped card block assembly proposed in this invention. Figure 2 ;

[0034] Figure 12 This is a schematic diagram of the deflection attitude of the C-shaped card block assembly proposed in this invention;

[0035] Figure 13 This is a schematic diagram of the splicing posture of the adjacent C-shaped card block assembly proposed in this invention;

[0036] Figure 14 This is a schematic diagram of the pre-connection state of the U-shaped groove and docking post proposed in this invention;

[0037] Figure 15 This is a schematic diagram of the internal structure of the support rod proposed in this invention;

[0038] Figure 16 This is a schematic diagram of the rotating limiting groove structure proposed in this invention;

[0039] Figure 17 This is a schematic diagram of the constraint sheet structure proposed in this invention;

[0040] Figure 18This is a schematic diagram of the spring telescopic rod structure proposed in this invention;

[0041] Figure 19 This is a schematic diagram of the tooth-clamp sleeve structure proposed in this invention;

[0042] Figure 20 This is a schematic diagram of the connecting rod structure proposed in this invention;

[0043] Figure 21 This is a schematic diagram of the main block docking structure proposed in this invention.

[0044] In the diagram: 1. Assembly plate; 101. Insert post; 102. Mounting slot; 103. Rack assembly slot; 2. Flat threaded disc; 201. Drive head; 3. Rack; 31. V-shaped rod; 32. Connecting post; 33. Tie rod; 4. Functional plate; 41. U-shaped slot; 42. Slot one; 5. Connecting frame; 51. Support rod; 511. Arc-shaped limit block; 512. Spring two; 52. Connecting slot; 6. C-shaped block assembly; 61. Main block; 62. Insert piece; 63. Insert; 64. Constraint slot; 6 5. Rocker arm; 66. Connecting piece; 661. Connecting rod; 67. Trigger groove; 671. Tightening spring; 7. Open groove; 8. Telescopic sleeve rod; 9. Fixed plate; 10. V-shaped clamp; 11. Spring one; 12. Lifting piece; 121. Locking groove; 13. Slide groove; 14. Toothed sleeve; 141. Spring three; 15. Spring telescopic rod; 16. Rotation limit groove; 161. Arc-shaped limit groove; 17. Constraint piece; 18. Movement groove; 19. Extension piece; 20. Connecting rod; 21. Locking piece. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0046] Reference Figure 1-7 An assembly structure for a microwave anechoic chamber includes an assembly plate 1. The four outer sides of the assembly plate 1 are provided with mounting grooves 102 for assembling a docking frame 5. The docking frame 5 is a hollow frame and has docking grooves 52 on the top and bottom sides of the frame for assembling a C-shaped locking block assembly 6.

[0047] One side of the C-shaped clamping block assembly 6 is connected to the pull rod 33 via the V-shaped clamping plate 10. The pull rod 33 is limited and installed on the inner wall of the mounting groove 102. The other end of the pull rod 33 passes through the assembly plate 1 and extends into the plate body and is connected to the V-shaped rod 31. The middle part of the V-shaped rod 31 is fixedly connected to the rack 3. The rack 3 is assembled in the rack assembly groove 103 opened in the inner wall of the assembly plate 1.

[0048] The assembly plate 1 achieves single linear motion through the rack and pinion assembly groove 103.

[0049] The outer wall of the rack 3 is threaded and screwed to the inner wall of the flat threaded disc 2. The flat threaded disc 2 is rotatably installed in the center of the assembly plate 1 via a rotating shaft. The outer edge of the inner side of the flat threaded disc 2 is provided with a continuous threaded groove and meshes with the rack 3. A drive head 201 is installed in the middle of the flat threaded disc 2.

[0050] When the flat threaded disk 2 rotates, it drives multiple racks 3 to move synchronously through the rotation of the thread. Similarly, the three-jaw chuck structure commonly seen in the mechanical field will not be explained further.

[0051] Reference Figure 3-6 , Figure 14 Insert posts 101 are installed at the four corners of the assembly plate 1. The insert posts 101 are used to connect with the slots 42 opened on the inner side of the function plate 4.

[0052] Among them, multiple U-shaped slots 41 are installed on the inner side plate of the functional plate 4, and the U-shaped slots 41 and the docking post 32 set in the middle of the V-shaped rod 31 are docking mechanisms for each other.

[0053] Refer to 5. Figure 8-13 , Figure 18-21 A docking frame 5 is rotatably installed on the inner wall of the mounting groove 102. A pair of support rods 51 are symmetrically installed in the middle of the docking frame 5. The adjacent support rods 51 are connected into a whole by a fixing plate 9.

[0054] Among them, a pair of C-shaped locking components 6 are symmetrically installed in the middle of the support rod 51. The C-shaped locking components 6 protrude from the outer wall of the docking frame 5 in a natural state to form a male head assembly posture.

[0055] The C-shaped card block assembly 6 includes a pair of main blocks 61 arranged symmetrically on the top and bottom. Each main block 61 has an insert 62 on one side. The insert 62 has an insertion port 63 in the middle, and a C-shaped opening is formed between adjacent insertion ports 63.

[0056] The main blocks 61 are connected by multiple springs 11.

[0057] An open groove 7, which is open at one end, is provided in the middle of the insert 62. The width of the open groove 7 is equal to the outer diameter of the support rod 51.

[0058] Furthermore, the main block 61 has a constraint groove 64 that runs through the top and bottom in the middle. A support rod 51 passes through the constraint groove 64, and the outer wall of the support rod 51 fits into the groove wall of the constraint groove 64.

[0059] Furthermore, a pair of rocker arms 65 are symmetrically installed on one side of the support rod 51, with one end of the rocker arm 65 rotatably connected to the outer wall of the support rod 51 and the other end being limitedly connected to the sliding groove 13 opened in the inner wall of the constraint groove 64 inside the main block 61. One end of the rocker arm 65 achieves single linear motion through the sliding groove 13.

[0060] Furthermore, the middle of the support rod 51 is provided with a trigger groove 67 symmetrically arranged on the upper and lower sides. The two sides of the trigger groove 67 are connected, and a connecting piece 66 is installed in the trigger groove 67. The connecting piece 66 is engaged with the inner wall of the slide groove 13, so that the connecting piece 66 is connected to the main block 61 as a whole.

[0061] The inner wall of the slide groove 13 is provided with a groove that matches the connecting piece 66 to achieve a snap-fit ​​connection.

[0062] Furthermore, a connecting rod 661 is installed in the middle of the connecting piece 66. The bottom of the connecting rod 661 extends downward and passes through the bottom side of the support rod 51 and is rotatably connected to a pair of connecting rods 20. A locking piece 21 is rotatably installed at the other end of each connecting rod 20. The locking piece 21 is installed in a slot opened at the bottom of the support rod 51.

[0063] Adjacent locking pieces 21 are connected as a whole by a connecting rod 20;

[0064] The connecting piece 66 is connected to the trigger groove 67 by a clamping spring 671. In its natural state, the clamping spring 671 pushes the connecting piece 66 to the top of the trigger groove 67.

[0065] In its natural state, the connecting rod 20 is in a "I"-like position. The connecting rod 20 drives the locking plates 21 connected at both ends to extend into the locking grooves 121 opened in the inner wall of the lifting plate 12. At this time, the lifting plate 12 and the support rod 51 move synchronously and are constrained.

[0066] Among them, the bottom side of the support rod 51 has a cavity for assembling the connecting rod 20;

[0067] Among them, the locking piece 21 achieves single linear displacement through the locking groove 121.

[0068] Reference Figure 19 The support rod 51 includes a pair of identical rods. The rods are composed of two telescopic sleeve rods 8 that are nested together. The telescopic sleeve rods 8 can move freely in opposite directions and are connected to the telescopic sleeve rods 8 of another adjacent support rod 51 through a meshing toothed sleeve 14. A spring 141 is installed inside the toothed sleeve 14, and the two ends of the spring 141 are respectively connected to the two rods.

[0069] Among them, a certain gap is left between the two adjacent meshing toothed sleeves 14 to meet the extension and retraction of the support rod 51;

[0070] Reference Figure 8-11 A pair of lifting plates 12 are sleeved and installed in the middle of the support rod 51. One end of the lifting plate 12 is rotatably connected to a V-shaped clamp 10 via a pin. The V-shaped clamp 10 includes a pair of clamps with a "V" shaped angle. Each clamp is rotatably connected to the pull rod 33. The other end of the pull rod 33 passes through the docking frame 5 and the mounting groove 102 and extends into the assembly plate 1 and is connected to the "V" shaped end of the V-shaped rod 31.

[0071] Furthermore, a motion groove 18 is provided in the middle of the docking frame 5, and a V-shaped clamping plate 10 is provided in the middle of the motion groove 18. The motion groove 18 makes half of the docking frame 5 suspended to allow the V-shaped clamping plate 10 to move. When the V-shaped clamping plate 10 moves horizontally, the outer wall of the V-shaped clamping plate 10 is pressed and contacted with the motion groove 18, causing the included angle of the V-shaped clamping plate 10 to become smaller and driving the lifting plate 12 connected to the end of the V-shaped clamping plate 10 to move accordingly.

[0072] Reference Figure 12 , Figure 18 Multiple spring telescopic rods 15 are symmetrically and rotatably installed on the inner wall of the mounting groove 102. The other end of the spring telescopic rod 15 passes through the docking frame 5 and is rotatably connected to each main block 61 through the extension piece 19. In the natural state, the spring telescopic rod 15 and the main block 61 are perpendicular to each other.

[0073] The spring telescopic rod 15 includes a pair of main rods and secondary rods that are sleeved together. The main rods and secondary rods are connected by a spring to achieve telescopic return. It can be directly purchased and used from the market. More detailed structures and principles are common knowledge to those skilled in the art and will not be explained further.

[0074] Reference Figure 5 , Figure 9-12 , Figure 16 The support rod 51 passes through the middle of the C-shaped locking block assembly 6. One end of the support rod 51 passes through the C-shaped locking block assembly 6 and the docking frame 5 and is connected to the arc-shaped limiting block 511. The arc-shaped limiting block 511 is corresponding to the rotation limiting groove 16 opened on the top and bottom walls of the mounting groove 102. Three arc-shaped limiting grooves 161 are opened at a 90° angle on one side of the inner wall of the rotation limiting groove 16. The arc-shaped limiting grooves 161 and the arc-shaped limiting block 511 are a concave-convex locking mechanism.

[0075] The support rod 51 is connected to the arc-shaped limiting block 511 by a pair of springs 512, which deform as the arc-shaped limiting block 511 moves.

[0076] Furthermore, the fixing plate 9 is fixedly installed at the center of the docking frame 5, and a through hole is provided on one side of the fixing plate 9. A pair of support rods 51 are fitted into the through hole, and the support rods 51 can be moved accordingly within the through hole.

[0077] Reference Figure 17 Multiple constraint pieces 17 are fixedly installed in the middle of the docking frame 5, and the constraint pieces 17 are attached to the outer wall of the C-shaped card block assembly 6.

[0078] In this embodiment, the operator rotates the docking frame 5 on one side of the assembly plate 1, causing it to rotate axially around the support rod 51. During the rotation, the docking frame 5 constrains the C-shaped locking block assembly 6, i.e. the main block 61, through the constraint piece 17 set inside it, and the main block 61 rotates synchronously. Then, the spring telescopic rod 15, which was originally set in a position perpendicular to the main block 61, deflects as the main block 61 rotates. After the deflection, the force exerted by the spring telescopic rod 15 on the outer wall of the main block 61 changes from vertical to inclined, and the direction of the force is no longer perpendicular to the docking frame 5, but changes to one side deviating from the docking frame 5.

[0079] Due to the rotational displacement of the docking frame 5 and the main block 61, the spring telescopic rod 15 has a deformable space. At this time, the spring telescopic rod 15 will quickly extend under the rebound action of the internal spring assembly, and form an active elongation mechanism on the side of the docking frame 5. Combined with the tilted force direction, the main block 61 will be pushed by the spring telescopic rod 15 in the opposite direction of its own rotation during the gradual rotation process, causing the docking frame 5 to be stretched by the spring telescopic rod 15 and forced to move, realizing the operation of recessing into the docking frame 5.

[0080] Meanwhile, as the main block 61 rotates and retracts, the support rod 51 rotates along a single axis, and the main block 61 is displaced relative to the support rod 51. During this process, the rocker arm 65 on the support rod 51 moves in the groove 13 inside the main block 61 until one end of the rocker arm 65 moves to the end of the groove 13 and the two are pressed together. At this time, one end of the rocker arm 65 is constrained and cannot continue to move horizontally. Both ends of the rocker arm 65 are subject to rotational constraints, thereby converting the subsequent horizontal displacement of the main block 61 into the rotational displacement of the rocker arm 65 itself. At this time, one end of the rocker arm 65 is at a fixed height (the end connected to the support rod 51), while the other end is not constrained in height (the end connected to the groove 13). It will generate displacement in the X and Z axes as it rotates, and under the constraint of the groove 13, it will drive the main block 61 to move downward, thus realizing motion conversion.

[0081] Therefore, after the main block 61 has been fully rotated, the support rod 51 is at the end of the constraint groove 64 inside the main block 61, and the rocker arm 65 is fully tilted to approach a vertical posture.

[0082] Conversely, the docking frame 5 completes the rotation action, that is, completes a 90° rotation, and the main block 61 is completely retracted into the docking frame 5. At this time, the two adjacent main blocks 61 arranged symmetrically approach each other (spring 11 is compressed), and the length of the C-shaped locking block assembly 6 becomes shorter, that is, the female head assembly posture.

[0083] Then, the assembly plate 1, which is adjusted to the female assembly posture, is aligned with the C-shaped locking block assembly 6 on the adjacent assembly plate 1 that is not adjusted and inserted. At this time, the main block 61 in the female assembly posture will be inserted into the main block 61 in the male assembly posture. That is, the female main block 61 will be inserted into the insert 62 in the middle of the male main block 61. The insert 62 has a slot 63 that matches the thickness of the main block 61, thus completing the insertion operation between the male and female heads.

[0084] Next, under the action of external force, the assembly plate 1 in the female head assembly posture gradually approaches the assembly plate 1 in the male head assembly posture, and the connection between the insert 62 and the main block 61 will be tighter. The insert 62 has an open groove 7 that goes through one end for docking and fitting the support rod 51.

[0085] Meanwhile, a docking groove 52 is provided at the position where the C-shaped card block assembly 6 is installed on the docking frame 5. The docking groove 52 makes half of the docking frame 5 hollow out, so as to dock with the adjacent C-shaped card block assembly 6.

[0086] After assembly, the flat threaded disc 2 is rotated by the drive head 201. The inner wall of the flat threaded disc 2 is provided with continuous threads and multiple racks 3 are engaged. The threads on the bottom wall of the racks 3 are matched with the flat threaded disc 2. The racks 3 are displaced by the rotation of the threads and drive a pair of pull rods 33 to move inward and tighten through the V-shaped rod 31. The pull rods 33 move the support rod 51 by pulling through the V-shaped clamp 10. The support rod 51 is connected to the main block 61 and the docking frame 5 to form a whole. At this time, each C-shaped card block assembly 6 on the assembly plate 1 will be pulled towards the center of the plate and connected more tightly with the adjacent and interconnected assembly plates 1.

[0087] Among them, the assembly plate 1 in the mother head assembly posture, due to the downward movement of the main block 61, the main block 61 will drive the connecting piece 66 set on the support rod 51 to move down synchronously. The connecting piece 66 drives one end of the connecting rod 20 at its bottom to move down through the connecting rod 661. After deflection, the other end of the connecting rod 20 generates a horizontal displacement, causing the two locking pieces 21 connected to it to disengage from the lifting piece 12. At this time, the lifting piece 12 and the support rod 51 are not constrained and can move relatively freely.

[0088] Therefore, when the pull rod 33 is tightened, the V-shaped clamp 10 moves horizontally, and the outer wall of the V-shaped clamp 10 is pressed into contact with the moving groove 18, causing the included angle of the V-shaped clamp 10 to decrease and driving the lifting plate 12 connected to the end of the V-shaped clamp 10 to move accordingly. At this time, the lifting plate 12 is unrestrained and slides naturally on the support rod 51. At this time, the V-shaped clamp 10 only changes itself and plays a role in tightening the support rod 51.

[0089] Conversely, in the male assembly posture, the main block 61 of the assembly plate 1 is at its natural height and the connecting piece 66 is pressed by the top spring 671. The connecting rod 20 at its bottom is in a "I" position, and the two locking pieces 21 are naturally inserted into the locking groove 121 of the lifting piece 12. At this time, the lifting piece 12 and the support rod 51 are mutually constrained to achieve synchronous movement.

[0090] Therefore, when the pull rod 33 is tightened, the V-shaped clamp 10 moves horizontally, and the outer wall of the V-shaped clamp 10 is pressed against the moving groove 18, causing the included angle of the V-shaped clamp 10 to decrease and driving the lifting plate 12 connected to the end of the V-shaped clamp 10 to move accordingly. At this time, the lifting plate 12 is constrained and drives the locking plate 21 to move down. The support rod 51 connected to the locking plate 21 will drive the main block 61 connected to the upper part to produce a small displacement. Under the constraint of the rocker arm 65, the main block 61 is guaranteed to move, and the telescopic sleeve 8 in the support rod 51 produces a small extension and contraction, thereby forming an interference clamping force to clamp the adjacent main block 61 inside and the support rod 51 that is locked to move synchronously, thereby driving the two adjacent ones to perform the tightening operation of the support rod 51.

[0091] In addition, it is worth noting that the constraint piece 17 constrains and limits the outer wall of the main block 61 to prevent the main block 61 from rotating or displacing freely.

[0092] During the installation of the functional board 4, the slots 42 at the four corners of the functional board 4 are aligned with the posts 101 at the four corners of the assembly board 1 and inserted. At the same time, the U-shaped slots 41 on the inner wall of the functional board 4 are simultaneously engaged with the docking posts 32 of the rack 3, thus completing the initial docking.

[0093] As the flat threaded disc 2 rotates and tightens, multiple racks 3 move synchronously and drive the docking post 32 to move inward (to the center of the assembly plate 1). After moving, the docking post 32 will make tight contact with the groove wall of the U-shaped slot 41 and generate four different directions of pressing force on the U-shaped slot 41, thereby completing the installation of the functional plate 4.

[0094] In practical applications, the rotation of the docking frame 5 will synchronously drive the support rod 51 to rotate, and the support rod 51 will synchronously drive the arc-shaped limiting block 511 set on its top to rotate. After rotation, the arc-shaped limiting block 511 will disengage from the arc-shaped limiting groove 161 in the rotation limiting groove 16 inside the mounting groove 102, and will rotate until it is embedded in the next adjacent arc-shaped limiting groove 161 to complete the positive 90° rotation limiting.

[0095] Among them, the inner wall of the rotating limiting groove 16 has three arc-shaped limiting grooves 161 distributed at a 90° angle. The arc-shaped limiting grooves 161 form a further recess in the inner wall of the rotating limiting groove 16. When the arc-shaped limiting block 511 contacts any arc-shaped limiting groove 161, locking and limiting are achieved through the concave-convex cooperation, so as to realize the standard angle rotation posture of the docking frame 5 at 0° (directly rear), 90° (directly side), and 180° (directly front).

[0096] Under the action of external force, the arc-shaped limiting block 511 is pressed by the reverse force of the groove wall and moves. At this time, the second spring 512 connected to it is compressed, causing the arc-shaped limiting block 511 to move inward and disengage from the corresponding arc-shaped limiting groove 161. When the arc-shaped limiting block 511 rotates and moves to the adjacent arc-shaped limiting groove 161, the second spring 512 returns to its original position and rebounds, causing the arc-shaped limiting block 511 to be stuck in the arc-shaped limiting groove 161.

[0097] Intuitively, any assembly panel 1 has four assembly surfaces (connecting frames 5), and each assembly surface can be switched to male or female assembly posture according to actual installation requirements;

[0098] The male assembly posture is that the C-shaped card block component 6 protrudes from the docking frame 5;

[0099] The female head assembly posture, that is, the C-shaped locking block component 6 is recessed into the docking frame 5;

[0100] In its natural state, the C-shaped locking block assembly 6 located in the middle of the docking frame 5 protrudes from the docking frame 5.

[0101] It should be explained that a single assembly panel 1 is temporarily fastened to any corner of the installation frame with fasteners, and subsequent assembly panels 1 are gradually spliced ​​outward from this corner. The more specific construction process is common knowledge to those skilled in the art and will not be explained further.

[0102] During the installation of the assembly panel 1, after the two adjacent assembly panels 1 to be spliced ​​are assembled, the corresponding assembly panels 1 are thoroughly fastened to the installation frame (such as keel frame, panel surface, etc., the specific structure is specified according to the actual construction requirements) using fasteners.

[0103] Functional board 4 includes an electromagnetic shielding layer and a microwave absorption layer, which is a standard configuration for microwave anechoic chambers. The specific internal structure and principle will not be explained further.

[0104] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A modular structure of a microwave anechoic chamber comprising a modular panel (1), characterized in that, The assembling plate (1) is provided with a plurality of butt joint frames (5) on the outer side, a pair of support rods (51) are symmetrically arranged in the middle of each butt joint frame (5), a C-shaped clamping block assembly (6) is arranged in the middle of each support rod (51), one side of the C-shaped clamping block assembly (6) is connected with a pull rod (33), the other end of the pull rod (33) penetrates into the inside of the assembling plate (1) and is connected with a tensioning mechanism; The C-shaped clamping block assembly (6) comprises a pair of symmetrically arranged main blocks (61), a constraint groove (64) is formed in the middle of each main block (61), the support rods (51) are arranged in the constraint grooves (64) in a penetrating mode, a pair of rocker arms (65) are symmetrically arranged on one side of the support rods (51) and are rotatably arranged, and the other ends of the rocker arms (65) are connected with the sliding grooves (13) formed in the inner walls of the constraint grooves (64) to realize limited movement; The middle of the support rod (51) is symmetrically provided with a trigger groove (67), a connecting plate (66) is arranged in the trigger groove (67) in a limiting mode, a connecting rod (661) is arranged in the middle of the connecting plate (66), the connecting rod (661) penetrates into the inside of the bottom side of the support rod (51) in a downward mode and is rotatably connected with a pair of connecting rods (20), the other ends of the connecting rods (20) are rotatably arranged with locking plates (21), and the locking plates (21) are arranged on the outer walls of the support rods (51) in a limiting mode; The middle of the support rod (51) is sleeved with a pair of lifting plates (12), a locking groove (121) is formed in the inner wall of the lifting plate (12) to match the locking plate (21), in a natural state, the connecting rods (20) are in a "I" shape, the locking plates (21) at the two ends of the connecting rods (20) extend out of the support rods (51) and are clamped in the locking grooves (121) formed in the inner walls of the lifting plates (12); The assembling plate (1) is in a square shape and is provided with mounting grooves (102) on the four sides of the plate body, the butt joint frames (5) are rotatably arranged on one side of the inside of the mounting grooves (102), and the butt joint frames (5) are symmetrically provided with butt joint grooves (52) on the two sides to assemble the C-shaped clamping block assembly (6); A plurality of spring telescopic rods (15) are rotatably arranged on one side of the inner walls of the mounting grooves (102), the other ends of the spring telescopic rods (15) penetrate through the butt joint frames (5) and are rotatably connected with each main block (61) through the extension plates (19), in a natural state, the spring telescopic rods (15) are perpendicular to the main blocks (61) and the springs in the spring telescopic rods (15) are compressed; The spring telescopic rod (15) comprises a pair of main rod bodies and auxiliary rod bodies which are sleeved with each other, one end of the main rod body is rotatably connected with the inner wall of the mounting groove (102), the other end of the main rod body is sleeved with the auxiliary rod body, the other end of the auxiliary rod body penetrates through the butt joint frame (5) and is rotatably connected with the extension plate (19), and the main rod body and the auxiliary rod body are connected through a spring to realize telescopic reset operation; One end of the main block (61) is provided with an insertion plate (62), an insertion hole (63) is formed in the middle of the insertion plate (62), the insertion hole (63) penetrates through the bottom, and the width of the slot of the insertion hole (63) is equal to the thickness of the main block (61), when the adjacent assembling plates (1) are connected, the main blocks (61) are correspondingly inserted into the insertion holes (63). One end of the support rod (51) passes through the C-shaped block assembly (6), the butt joint frame (5) and is connected with the arc-shaped limiting block (511). The arc-shaped limiting block (511) is correspondingly assembled in the rotating limiting groove (16) opened in the top and bottom walls of the installation groove (102). The inner wall of the rotating limiting groove (16) is provided with three arc-shaped limiting grooves (161) at an angle of 90°. The arc-shaped limiting grooves (161) and the arc-shaped limiting block (511) are mutually concave-convex clamping mechanisms. The support rod (51) and the arc-shaped limiting block (511) are connected by a pair of spring two (512). The spring two (512) deforms with the displacement of the arc-shaped limiting block (511).

2. The assembled structure of a microwave anechoic chamber according to claim 1, characterized in that, The adjacent support rods (51) are connected by the fixed plate (9). The fixed plate (9) is fixedly installed in the middle of the butt joint frame (5). The middle of the fixed plate (9) is provided with a through hole for limiting the assembly of the support rod (51).

3. The assembled structure of a microwave anechoic chamber according to claim 2, characterized in that, The support rod (51) includes a pair of same rod bodies connected by the interlocking sleeve (14). Each rod body is composed of two telescopic sleeve rods (8) connected with each other. The adjacent telescopic sleeve rods (8) can move freely in opposite directions. The telescopic sleeve rods (8) of the other adjacent support rod (51) are connected by the interlocking sleeve (14). The interlocking sleeve (14) is provided with spring three (141) inside. The two ends of the spring three (141) are connected with the two rod bodies respectively. A certain gap is left between the two interlocking interlocking sleeves (14) to meet the displacement of the support rod (51).

4. The assembled structure of a microwave anechoic chamber according to claim 1, wherein The tensioning mechanism includes a plane threaded disc (2) and a rack (3). The plane threaded disc (2) is rotatably installed in the middle center position of the assembly plate (1) by a bearing piece. A continuous threaded groove is opened in the inner wall of the plane threaded disc (2). The threaded groove is connected with the racks (3). The racks (3) are limitingly installed in the rack assembly groove (103) opened in the inner wall of the assembly plate (1). The middle of the rack (3) is provided with a V-shaped rod (31). The two ends of the V-shaped rod (31) extend outward and are connected with each pull rod (33).

5. The assembled structure of a microwave darkroom according to claim 4, characterized in that, The assembly plate (1) is provided with a plug column (101) at the four corners on the outer side. The plug column (101) is used for abutting the clamping groove one (42) opened at the four corners on the inner side of the functional plate (4). A plurality of U-shaped clamping grooves (41) are installed in the middle of the functional plate (4). The U-shaped clamping grooves (41) are used for abutting the abutting column (32) provided in the middle of the V-shaped rod (31).

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