Block metal truss antenna housing door for vehicle to enter and exit and door opening and closing method

Abstract

The invention discloses a partitioned metal truss antenna housing door allowing vehicles to enter and exit and a door opening and closing method, and relates to the technical field of antenna housings. According to the partitioned metal truss radome door allowing the vehicles to enter and exit and the door opening and closing method, the appearance matched with the overall shape of the radome body is constructed through the arrangement of the four door triangular unit blocks and the side ribs, under the cooperation of the door base, the maneuvering door assembly can participate in bearing of the radome body, the requirements for rigidity, strength and stability of the overall radome structure are met, and the overall radome door is convenient to assemble and disassemble. Through the arrangement of the fastening bolt and the assembly locking assembly, stable butt joint between the maneuvering door assembly and the cover body is guaranteed, the size of a connecting area is small, meanwhile, shielding is not additionally increased to affect receiving and transmitting of electromagnetic waves, the mechanical property and the electrical property are excellent, the structure is simple and reliable, additional auxiliary equipment and work are not needed during opening and closing, and the cost is low. Operation is convenient, efficiency is high, and maneuverability of radar equipment can be remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of radomes, and in particular to a block metal truss radome door for vehicles to enter and exit, and a door opening and closing method. Background Art

[0002] Block metal truss radomes are widely used in large ground radar systems due to their high structural reliability and good electrical performance. This type of radome is usually composed of several triangular unit blocks, each unit block has three side ribs to tension the flexible skin, and the block units are spliced ​​in pairs through side ribs, which improves the overall rigidity and structural stability of the radome.

[0003] The installation and maintenance requirements of the equipment inside the cover require that this type of antenna cover must have the function of allowing vehicles to enter and exit. The shape of the antenna cover door must be compatible with the overall shape of the antenna cover to ensure the consistency of the appearance of the antenna cover. The antenna cover door is required to be wave-transparent and the impact on the equipment inside the cover should be as small as possible. The antenna cover door must participate in the load-bearing of the antenna cover and meet the overall structural rigidity and stability requirements of the antenna cover. For example, a mobile door device for vehicles entering and exiting the antenna cover described in publication number CN210576453U is aimed at a fiberglass antenna cover, and its cover body and door are both rigid structures. By arranging structural parts for opening the door on the door panel, the mobile door is opened with the help of an operating vehicle for vehicles to enter and exit. It requires 4 operators and equipment such as a mobile door opening trolley to open it, and a temporary support and protection tooling must be set up before each use, which seriously hinders the opening and closing efficiency of the mobile door and cannot be used for mobility. The invention is adopted in equipment with higher requirements, and it is not applicable to block metal truss radomes. There are significant differences in the interconnection methods between the two types of radomes. There is pre-tension on the membrane surface of the block metal truss radome, and the side ribs of the unit block are generally bent and deformed under the influence of the membrane tension, which makes it difficult to align the hole positions of the door and the door frame. For this reason, a block metal truss radome door and a door opening and closing method for vehicles to enter and exit are proposed. The shape of the proposed motorized door assembly is adapted to the overall shape of the radome, can participate in the load-bearing of the radome, and meet the requirements of the rigidity and stability of the whole radome structure. The connection area between the door and the door frame is small, and no additional shielding is added to affect the reception and transmission of electromagnetic waves. It has excellent mechanical and electrical properties, a simple and reliable structure, no additional auxiliary equipment and work are required when opening and closing, the operation is convenient, the efficiency is high, and the maneuverability of the radar equipment can be significantly improved. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a segmented metal truss antenna cover door and a door opening and closing method for vehicles to enter and exit, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: On the one hand, a segmented metal truss antenna cover door for vehicles to enter and exit includes a basic ring beam, and a cover body and a motorized door assembly arranged on the basic ring beam, wherein the motorized door assembly is used in conjunction with the cover body, and the motorized door assembly includes a door base and four door triangle unit blocks, the four door triangle unit blocks are spliced ​​and fixed by six side ribs, the two side ribs arranged at the bottom are fixedly installed on the top of the door base, the door base is rotatably installed at one end of the basic ring beam, and the remaining four side ribs are fixed to the cover body by fastening bolts.

[0006] The present invention is further configured as follows: the cover body comprises four door frame triangular unit blocks and a plurality of cover body common triangular unit blocks; The four door frame triangular unit blocks are fixed to the remaining four side ribs by fastening bolts.

[0007] The present invention is further configured as follows: the door base includes a base frame, both sides of the front side and the back side of the base frame are rotatably mounted with casters, one side of the front side of the base frame is also fixedly connected with a door handle, and the other side of the front side of the base frame is penetrated and rotatably mounted with a door shaft; The door shaft is rotatably mounted on one end of the foundation ring beam.

[0008] The present invention is further configured such that the rotation tracks of the three casters are arranged in concentric circles around the door shaft.

[0009] The present invention is further configured as follows: a support leg assembly is provided on the front of the base frame, the support leg assembly comprises a threaded barrel, a threaded rod is passed through the bottom of the threaded barrel and is threadedly connected, and a rotating handle is sleeved and fixedly connected to the outer periphery of the threaded rod; The threaded barrel is fixedly mounted on the front side of the base frame by means of bolts.

[0010] The present invention is further configured as follows: a reinforcement base is cast at the bottom of the gap of the foundation ring beam, a positioning hole plate is fixedly installed on the top of the reinforcement base by bolts, and the inner surface of the positioning hole plate is used in conjunction with the bottom of the outer periphery of the threaded rod.

[0011] The present invention is further configured as follows: an assembly locking assembly is further provided between the remaining four side ribs and the four door frame triangular unit blocks, the assembly locking assembly comprising a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate being fixed by bolts and nuts; The first fixing plate and the second fixing plate are respectively arranged on the opposite sides of the side rib and the door frame triangular unit block, and the surfaces of the remaining four side ribs and the four door frame triangular unit blocks are provided with waist-shaped holes for use with bolts and nuts; The fastening bolts are arranged between the first fixing plate and the second fixing plate.

[0012] On the other hand, the present invention also discloses a method for opening and closing a block metal truss antenna cover door for vehicles to enter and exit, which specifically comprises the following steps: When opening the door, loosen and separate the bolts and nuts, take out the fastening bolts, and turn the rotating handle. The rotating handle drives the threaded rod to rotate, so that the threaded rod is separated from the positioning hole plate, and the door handle is pulled to rotate the base frame around the door shaft. The base frame drives the four door triangle unit blocks to move to realize the door opening operation. After opening in place, turn the rotating handle in the opposite direction. The rotating handle drives the threaded rod to rotate, so that the bottom end of the threaded rod is pressed against the ground, and the positioning of the motorized door assembly is completed; When closing the door, turn the rotating handle, which drives the threaded rod to rotate so that the bottom end of the threaded rod is off the ground, and push the door handle to make the base frame drive the four door triangular unit blocks to move. After the four door triangular unit blocks move to contact the four door frame triangular unit blocks, turn the rotating handle in the opposite direction to drive the threaded rod to rotate so that the bottom end of the threaded rod is inserted into the positioning hole plate, and then set the first fixing plate and the second fixing plate on the opposite side of the side rib and the door frame triangular unit block respectively, pass the bolts in the bolts and nuts through the waist-shaped holes, tighten the nuts in the bolts and nuts, so that the first fixing plates and the second fixing plates squeeze and position the side ribs and the door frame triangular unit blocks, and then tighten the fastening bolts to complete the door closing operation.

[0013] The present invention provides a block metal truss antenna cover door and a door opening and closing method for vehicles to enter and exit. It has the following beneficial effects: (1) The present invention constructs an appearance that matches the overall shape of the cover body by setting four door triangle unit blocks and side ribs. With the cooperation of the door base, the motorized door assembly can participate in the bearing of the cover body and meet the requirements of the rigidity and stability of the entire cover structure. By setting the fastening bolts and assembling the locking assembly, the stable connection between the motorized door assembly and the cover body is ensured. While the connection area is small in size, it will not increase the obstruction to affect the reception and transmission of electromagnetic waves. It has excellent mechanical and electrical properties, a simple and reliable structure, no additional auxiliary equipment and work are required when opening and closing, the operation is convenient and efficient, and the maneuverability of the radar equipment can be significantly improved.

[0014] (2) The present invention provides reliable judgment conditions for whether the motorized door assembly is moved into place when closing the door through the setting of the support leg assembly, the reinforced base and the positioning hole plate, provides an accurate reference for the stable docking between the motorized door assembly and the cover body, and can limit the motorized door assembly after the door is opened. While being easy to use, the setting of the casters provides reliable guarantee for the opening of the motorized door assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a schematic diagram of the external structure of the motorized door assembly of the present invention after it is opened; Figure 3 It is a schematic diagram of the connection between the motorized door assembly and the basic ring beam structure of the present invention; Figure 4 It is a structural schematic diagram of the door base of the present invention; Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at center A; Figure 6 It is a schematic diagram of the connection of the side ribs, fastening bolts and the triangular unit block structure of the door frame of the present invention; Figure 7 It is a connection schematic diagram of the side ribs, fastening bolts, door frame triangular unit blocks and assembled locking component structure of the present invention.

[0016] In the figure: 1. Foundation ring beam; 2. Cover body; 3. Motorized door assembly; 4. Door base; 5. Door triangular unit block; 6. Side ribs; 7. Fastening bolts; 8. Door frame triangular unit block; 9. Cover body ordinary triangular unit block; 10. Base frame; 11. Casters; 12. Door handle; 13. Door hinge; 14. Support leg assembly; 15. Threaded cylinder; 16. Threaded rod; 17. Rotating handle; 18. Reinforced base; 19. Positioning hole plate; 20. Assembly locking assembly; 21. First fixing plate; 22. Second fixing plate; 23. Bolts and nuts; 24. Waist-shaped hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] See also Figure 1-7 The embodiment of the present invention provides the following two technical solutions: a block metal truss antenna cover door for vehicles to enter and exit, comprising a basic ring beam 1, a cover body 2 and a motorized door assembly 3 arranged on the basic ring beam 1, wherein the motorized door assembly 3 is used in conjunction with the cover body 2, as shown in the attached Figure 2 As shown, the foundation ring beam 1 reserves an inlet and outlet gap as the installation space for the motorized door assembly 3 . In order to effectively support the motorized door assembly 3 , a reinforced base 18 is cast at the bottom of the gap of the foundation ring beam 1 .

[0019] As a preferred solution, the motorized door assembly 3 includes a door base 4 and four door triangular unit blocks 5. The four door triangular unit blocks 5 are spliced ​​and fixed by six side ribs 6. The two side ribs 6 arranged at the bottom are fixedly installed on the top of the door base 4. The door base 4 is rotatably installed at one end of the foundation ring beam 1.

[0020] As a preferred solution, the cover body 2 is composed of four door frame triangular unit blocks 8 and a plurality of cover body ordinary triangular unit blocks 9, and the four door frame triangular unit blocks 8 are fixed to the remaining four side ribs 6 by fastening bolts 7. It is further explained that in order to avoid the side ribs 6 from bending inward due to the influence of the membrane surface tension and its own gravity, thereby causing the door triangular unit block 5 and the mounting holes on the door frame triangular unit block 8 to not coincide, an assembly locking assembly 20 is also provided between the remaining four side ribs 6 and the four door frame triangular unit blocks 8, and the assembly locking assembly 20 is provided In the middle area where the bending deformation of the side rib 6 is the largest, the assembled locking assembly 20 includes a first fixing plate 21 and a second fixing plate 22, and the first fixing plate 21 and the second fixing plate 22 are fixed by bolts and nuts 23. The first fixing plate 21 and the second fixing plate 22 are respectively arranged on the opposite sides of the side rib 6 and the door frame triangular unit block 8, and the surfaces of the remaining four side ribs 6 and the four door frame triangular unit blocks 8 are provided with waist-shaped holes 24 used in conjunction with the bolts and nuts 23, and the fastening bolts 7 are arranged between the first fixing plate 21 and the second fixing plate 22.

[0021] As a preferred solution, the door base 4 includes a base frame 10, and casters 11 are rotatably installed on both sides of the front and back of the base frame 10. A door handle 12 is also fixedly connected to one side of the front of the base frame 10, and a door shaft 13 is penetrated and rotatably installed on the other side of the front of the base frame 10. The door shaft 13 is rotatably installed on one end of the foundation ring beam 1.

[0022] As a preferred solution, in order to maintain stability after opening the door, a support leg assembly 14 is provided on the front of the base frame 10. The support leg assembly 14 includes a threaded barrel 15, which is fixedly installed on the front of the base frame 10 by bolts. A threaded rod 16 passes through the bottom of the threaded barrel 15 and is threadedly connected. A rotating handle 17 is sleeved on the outer periphery of the threaded rod 16 and fixedly connected.

[0023] As a preferred solution, in order to detect whether the door is fully closed, a positioning hole plate 19 is fixedly installed on the top of the reinforcement base 18 by bolts, and the inner surface of the positioning hole plate 19 is used in conjunction with the bottom of the outer periphery of the threaded rod 16.

[0024] When opening the door, loosen and separate the bolts and nuts 23, take out the fastening bolts 7, and turn the rotating handle 17. The rotating handle 17 drives the threaded rod 16 to rotate, so that the threaded rod 16 is separated from the positioning hole plate 19, and the door handle 12 is pulled to make the base frame 10 rotate around the door shaft 13. The base frame 10 drives the four door triangle unit blocks 5 to move to realize the door opening operation. After opening in place, rotate the rotating handle 17 in the opposite direction. The rotating handle 17 drives the threaded rod 16 to rotate, so that the bottom end of the threaded rod 16 is pressed against the ground to complete the positioning of the motorized door assembly 3.

[0025] When closing the door, turn the rotating handle 17, which drives the threaded rod 16 to rotate, so that the bottom end of the threaded rod 16 is off the ground, and push the door handle 12 to make the base frame 10 drive the four door triangular unit blocks 5 to move. After the four door triangular unit blocks 5 move to contact the four door frame triangular unit blocks 8, turn the rotating handle 17 in the opposite direction, which drives the threaded rod 16 to rotate, so that the bottom end of the threaded rod 16 is inserted into the positioning hole plate 19, and then the first fixing plate 21 and the second fixing plate 22 are respectively arranged on the opposite side of the side rib 6 and the door frame triangular unit block 8, after the bolts in the bolts and nuts 23 are passed through the waist-shaped holes 24, the nuts in the bolts and nuts 23 are tightened, so that the first fixing plates 21 and the second fixing plates 22 squeeze and position the side rib 6 and the door frame triangular unit block 8, and then the fastening bolts 7 are tightened to complete the door closing operation.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A segmented metal truss antenna cover door for vehicles to enter and exit, comprising a base ring beam (1), a cover body (2) and a maneuverable door assembly (3) arranged on the base ring beam (1), wherein the maneuverable door assembly (3) and the cover body (2) are used in conjunction with each other, and is characterized in that: The motorized door assembly (3) comprises a door base (4) and four door triangle unit blocks (5), the four door triangle unit blocks (5) being spliced ​​and fixed by six side ribs (6), two side ribs (6) arranged at the bottom being fixedly mounted on the top of the door base (4), the door base (4) being rotatably mounted on one end of the base ring beam (1), and the remaining four side ribs (6) being fixed to the cover body (2) by fastening bolts (7).

2. The segmented metal truss antenna cover door for vehicle access according to claim 1, characterized in that: The cover body (2) comprises four door frame triangular unit blocks (8) and a plurality of cover body common triangular unit blocks (9); The four door frame triangular unit blocks (8) are fixed to the remaining four side ribs (6) by means of fastening bolts (7).

3. The segmented metal truss antenna cover door for vehicle access according to claim 1, characterized in that: The door base (4) comprises a base frame (10), casters (11) are rotatably mounted on both sides of the front side and the back side of the base frame (10), a door handle (12) is fixedly connected to one side of the front side of the base frame (10), and a door shaft (13) is penetrated and rotatably mounted on the other side of the front side of the base frame (10); The door shaft (13) is rotatably mounted on one end of the base ring beam (1).

4. The segmented metal truss antenna cover door for vehicle access according to claim 3, characterized in that: The rotation tracks of the three casters (11) are arranged in concentric circles around the door rotation axis (13).

5. The segmented metal truss antenna cover door for vehicle access according to claim 3, characterized in that: A foot support assembly (14) is provided on the front of the base frame (10), the foot support assembly (14) comprising a threaded cylinder (15), a threaded rod (16) passing through the bottom of the threaded cylinder (15) and being threadedly connected, a rotating handle (17) being sleeved on the outer periphery of the threaded rod (16) and being fixedly connected; The threaded cylinder (15) is fixedly mounted on the front side of the base frame (10) by means of bolts.

6. The segmented metal truss antenna cover door for vehicle access according to claim 5, characterized in that: A reinforcement base (18) is cast at the bottom of the notch of the foundation ring beam (1), a positioning hole plate (19) is fixedly mounted on the top of the reinforcement base (18) by means of bolts, and the inner surface of the positioning hole plate (19) is used in conjunction with the bottom of the outer periphery of the threaded rod (16).

7. The segmented metal truss antenna cover door for vehicle access according to claim 2, characterized in that: An assembly locking assembly (20) is further provided between the remaining four side ribs (6) and the four door frame triangular unit blocks (8), wherein the assembly locking assembly (20) comprises a first fixing plate (21) and a second fixing plate (22), wherein the first fixing plate (21) and the second fixing plate (22) are fixed by bolts and nuts (23); The first fixing plate (21) and the second fixing plate (22) are respectively arranged on the side opposite to the side of the side rib (6) and the door frame triangular unit block (8), and the surfaces of the remaining four side ribs (6) and the four door frame triangular unit blocks (8) are provided with waist-shaped holes (24) for use with bolts and nuts (23); The fastening bolts (7) are arranged between the first fixing plate (21) and the second fixing plate (22).

8. A method for opening and closing a block metal truss antenna cover door for vehicles to enter and exit, characterized in that: The specific steps include: When opening the door, the bolts and nuts (23) are loosened and separated, the fastening bolts (7) are taken out, and the rotating handle (17) is turned. The rotating handle (17) drives the threaded rod (16) to rotate, so that the threaded rod (16) is separated from the positioning hole plate (19). The door handle (12) is pulled to rotate the base frame (10) around the door shaft (13). The base frame (10) drives the four door triangle unit blocks (5) to move, and the door opening operation is realized. After the door is fully opened, the rotating handle (17) is turned in the opposite direction. The rotating handle (17) drives the threaded rod (16) to rotate, so that the bottom end of the threaded rod (16) is pressed against the ground, and the positioning of the motorized door assembly (3) is completed. When closing the door, the rotating handle (17) is rotated, and the rotating handle (17) drives the threaded rod (16) to rotate, so that the bottom end of the threaded rod (16) is separated from the ground, and the door handle (12) is pushed to make the base frame (10) drive the four door triangular unit blocks (5) to move. After the four door triangular unit blocks (5) move to contact the four door frame triangular unit blocks (8), the rotating handle (17) is rotated in the opposite direction, and the rotating handle (17) drives the threaded rod (16) to rotate, so that the bottom end of the threaded rod (16) is inserted into the positioning hole plate (19). Then, the first fixing plate (21) and the second fixing plate (22) are respectively arranged on the side opposite to the side of the side rib (6) and the door frame triangular unit block (8). After the bolts in the bolt nuts (23) are passed through the waist-shaped holes (24), the nuts in the bolt nuts (23) are tightened, so that the first fixing plate (21) and the second fixing plate (22) are pressed and positioned against the side rib (6) and the door frame triangular unit block (8), and then the fastening bolts (7) are tightened to complete the door closing operation.

Images