Two-way fully openable semicircular tent and opening method thereof

Abstract

The present invention discloses a two-way, fully openable semicircular tent and its opening method, which belong to the technical field of outdoor tents. It addresses the shortcomings of conventional tents in the prior art, such as cumbersome installation and disassembly, poor stability, and unsuitability for applications such as field training, disaster relief, and international rescue. Its main structure includes a tarpaulin, reinforcing cables, and two sets of opening and closing mechanisms. Two or more structural beams are installed between the two sets of opening and closing mechanisms. The tarpaulin is installed on the structural beams using straps, and the reinforcing cables are connected to the structural beams via shackles on the structural beams. The present invention is primarily used in scenarios requiring rapid assembly and disassembly, such as outdoor activities, emergency rescue, and military use.

Description

Technical Field

[0001] The present invention belongs to the technical field of outdoor tents, and in particular relates to a two-way fully openable semicircular tent and an opening method thereof. Background Art

[0002] Compared to reinforced concrete structures, tents are simple to construct, portable, and require minimal manpower and material resources. As their applications continue to expand, their role is also expanding. Currently, in some military and peacekeeping fields, there is an urgent need for tents that can be opened in both directions to provide temporary shelter for combat equipment.

[0003] In existing tents, the structure is mostly semi-cylindrical and the two ends of the tent mostly use a curtain method to open and close the tent door. Although the tent can realize two-way door opening and closing under this structure, this structure can only be applied to small tents. For large or even larger tents, this type of curtain-type door cannot be used due to its poor structural strength and wind resistance. For medium to large or even larger tents, a special opening and closing mechanism must be used to realize two-way opening and closing of the door body. The main advantage of a tent is that it requires it to have the advantages of being able to be quickly set up and dismantled, portable and transportable, fast door opening and closing, and simple operation. Especially in an emergency, it is very important to quickly establish a temporary shelter. However, there is a lack of tent products on the market that can open and close quickly and automatically, have a stable structure and are easy to operate.

[0004] In order to overcome the above problems, there are some improved tents in the existing technology, such as using mechanical transmission devices to assist in the expansion and folding of the tent. However, these designs often have problems such as complex structure, heavy weight, and insufficient reliability, and are prone to failure during the opening and closing process, resulting in increased safety risks.

[0005] For example, the Chinese utility model patent with authorization announcement number CN 209990234 U discloses a semicircular tent that is easy to disassemble and assemble. The solution it adopts is to press the pressure hand downward, and under the action of pressure, the spring is pressed into the groove on the upper end of the pressure plate to loosen the fixation of the fixer, and then the weight is pulled to cross-connect the longitudinal frame and the transverse frame through the connector, and pulling the fixer also drives the side frame to move, so that all the side frames between the fixers are opened, and then the rainproof layer is installed inside the frame layer through the weight, and the sunscreen layer is connected to the protruding shaft so that the sunscreen layer covers the surface of the frame layer. However, its shortcomings are: cumbersome installation and disassembly, poor stability, and it is not suitable for application places such as field training, field disaster relief, and international rescue. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a two-way fully openable semicircular tent and an opening method thereof.

[0007] In order to achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0008] A two-way fully openable semicircular tent comprises a tarpaulin, reinforcing cables and two sets of opening and closing mechanisms. Two or more structural beams are installed between the two sets of opening and closing mechanisms. The tarpaulin is installed on the structural beams via straps, and the reinforcing cables are connected to the structural beams via shackles on the structural beams.

[0009] Preferably, the structural beam includes a single-ear beam, N long support beams and short support beams arranged at both ends. The short support beam, N long support beams, single-ear beam and short support beam are connected end to end in sequence, and the two ends of the two short support beams are respectively connected to two sets of opening and closing mechanisms, wherein N is a positive integer ≥2.

[0010] Preferably, the opening and closing mechanism includes a driving support, a short rotating shaft of the support beam, a rotating plate, a sliding shaft, a driving mechanism installed on the driving support and a shift rod connected to the driving mechanism, and the driving support is provided with an arc-shaped slide groove and a curved slide groove; the rotating plate is inserted in the middle of the double-ear seat on the short support beam, the short rotating shaft of the support beam passes through the rotating plate and the short support beam and is locked by a nut, the structural beam is installed on the rotating plate, and the structural beam can rotate around the short rotating shaft of the support beam; the sliding shaft is installed on the rotating plate, and the two ends of the sliding shaft are clamped in the arc-shaped slide groove on the driving support, and the axial position of the sliding shaft, the driving support and the rotating plate is limited by a retaining spring.

[0011] Preferably, the driving mechanism includes a driving motor and a driving shaft, the driving motor is mounted on the driving support by bolts, the driving shaft passes through the driving support and is mounted on the driving motor, a rectangular shaft section is provided on the driving shaft, and one end of the shift rod is mounted on the driving shaft through the rectangular shaft section and a rectangular slide groove provided on the shift rod.

[0012] Preferably, a rolling shaft is also installed on the shift rod, and the rolling shaft can slide in the curved slide groove. An open groove A is provided on the turn plate, and the drive shaft passes through the open groove A. The drive shaft, rolling shaft, shift rod and sliding shaft are driven by the drive motor, so that the turn plate can be driven by the drive motor to rotate along the route of the structural beam expansion / closing.

[0013] Preferably, the opening and closing mechanism also includes a rotation speed limiting component, which includes a bayonet, a long rotating shaft of the support beam, a large gear and a small gear meshing with the large gear. The large gear is installed on the driving support by bolts, and the long rotating shaft of the support beam passes through the short support beam, the rotating plate, and the shaft sleeve in sequence and is then threadedly connected to the small gear through threads. The two ends of the bayonet are respectively connected to the small gear and the short support beam. Through the meshing of the large gear and the small gear, the structural beam can be driven by the rotating plate to rotate at a specific speed according to the transmission ratio of the large gear and the small gear.

[0014] Preferably, the driving support is covered with a protective cover on the outside, and the arc-shaped part of the protective cover is made of accordion elastic material, which can be compressed and stretched during the rotation of the structural beam to play a dust-proof role.

[0015] Preferably, the structural beam is an arched structure, and a ring is provided on the long support beam, and the shackle is installed on the long support beam through the ring.

[0016] A method for opening a two-way fully openable semicircular tent, using the above-described two-way fully openable semicircular tent, comprises the following steps:

[0017] S1: When in use, the drive motors of the two opening and closing mechanisms are started in the same direction. Under the drive of the drive motors, the drive shaft rotates, and the lever rotates under the drive shaft and slides within the restriction of the rectangular slide. However, since the rolling shaft fixed to the lever is restricted by the curved slide on the drive support during movement, the lever will eventually slide and rotate along the set route;

[0018] S2: The sliding shaft is driven by the shift lever and restricted by the arc-shaped groove on the driving support. Under the combined action of the two, the sliding shaft performs circular motion along the arc-shaped groove on the driving support.

[0019] S3: The sliding shaft is mounted on the rotating plate and is only fixed in the axial direction. The rotating plate moves in a circular motion driven by the sliding shaft and can rotate around the sliding shaft. Therefore, under the reaction of the sliding shaft, the rotating plate, and other components mounted on the rotating plate, the rotating plate rotates around the sliding shaft while moving in a circular motion with the sliding shaft.

[0020] S4: Each structural beam is fixed to the axial direction of the rotating plate through the short rotating axis of the supporting beam, the long rotating axis of the supporting beam, and the rotating plate. Therefore, under the combined effects of the driving force of the rotating plate, its own gravity, the compression of other structural beams, or the traction of the tarpaulin, each structural beam will simultaneously rotate around the short rotating axis of the supporting beam and the long rotating axis of the supporting beam, thereby realizing the opening and closing of the tent.

[0021] S5: The tent can be fully opened and closed in both directions by starting the drive motors in different directions.

[0022] Preferably, in order to avoid the opening and closing mechanism from falling suddenly during operation, each small gear is only connected to the short support beam located on the outermost side. By meshing the large gear and the small gear, the short support beam located on the outermost side can be rotated according to the transmission ratio of the large gear and the small gear under the drive of the turning plate, thereby controlling the speed of the structural beam located on the inner side.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Through the opening and closing mechanism, the drive motor and various slides can realize the automatic and rapid opening and closing of the tent. The user only needs to start the drive motor to complete the setting up or dismantling of the tent in a short time, which improves the efficiency of use. It is especially suitable for emergency rescue, military operations and other situations where shelters need to be set up quickly.

[0025] 2. The use of arched structural beams and reinforcing cables ensures the stability of the tent under various environmental conditions. At the same time, the rotation speed limit component, such as the meshing of the large gear and the small gear, can make the structural beam rotate at a specific speed according to the meshing ratio of the large gear and the small gear under the drive of the rotating plate, which can avoid the sudden fall of the opening and closing mechanism during operation and improve the safety of the tent during opening and closing.

[0026] 3. The present invention simplifies the manual erection process of traditional tents, reduces manpower requirements, and lowers the difficulty of operation. Even in adverse weather conditions, the tent can be easily opened and closed automatically, providing great convenience for users.

[0027] 4. The semicircular tarpaulin design is not only beautiful, but also effectively utilizes the internal space, providing users with a spacious and comfortable living environment. In addition, when the tent is in the closed state, the overall volume is small, which is convenient for transportation and storage;

[0028] 5. The setting of the protective cover protects the internal mechanical components from the influence of the external environment and prolongs the service life of the equipment. The application of accordion elastic material allows the protective cover to freely expand and contract during the rotation of the structural beam, which does not affect the normal operation of the tent and increases the durability of the system.

[0029] 6. Its two-way full opening and closing function ensures that equipment can enter and exit the tent without turning around, or that combat plans can be completed without moving equipment. Under the premise of achieving two-way full opening and closing, the tent is easy to set up and dismantle, and the tent can be opened and closed quickly.

[0030] In summary, the present invention has the characteristics of flexible and convenient construction and dismantling, and can quickly and flexibly realize the two-way full opening and closing of the tent, providing a construction site for field training, field disaster relief, international rescue and other fields, and providing a new dynamic use method for the application of tents. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure when the tarpaulin is removed in the present invention;

[0033] Figure 3 Schematic diagram of the structure of the structural beam in the present invention;

[0034] Figure 4 Schematic diagram of the structure of the short support beam in the present invention;

[0035] Figure 5 Schematic diagram of the structure of the long support beam in the present invention;

[0036] Figure 6 Schematic diagram of the structure of the single ear beam in the present invention;

[0037] Figure 7 Schematic diagram of the structure of the opening and closing mechanism of the present invention;

[0038] Figure 8 This is a disassembled schematic diagram of the opening and closing mechanism of the present invention;

[0039] Figure 9 This is a schematic diagram of the structure of the short support beam of the present invention when it is installed on the rotating plate;

[0040] Figure 10 Schematic diagram of the structure of the rotation speed limiting assembly of the present invention;

[0041] Figure 11 Schematic diagram of the structure of the drive shaft in the present invention;

[0042] Figure 12 Schematic diagram of the structure of the shift lever in the present invention;

[0043] Figure 13 Schematic diagram of the structure of the rolling shaft in the present invention;

[0044] Figure 14 It is a structural schematic diagram of the driving support in the present invention;

[0045] Figure 15 It is a structural schematic diagram of the transfer plate of the present invention;

[0046] Figure 16 It is a schematic structural diagram of the protective cover in the present invention;

[0047] Figure 17 This is a schematic diagram of the structure when one side of the structural beam is opened in the present invention;

[0048] Figure 18 This is a schematic diagram of the structure when the structural beams on both sides of the present invention are opened.

[0049] In the figure: 1. Tarpaulin; 2. Structural beam; 3. Opening and closing mechanism; 4. Reinforcing rope; 21. Short support beam; 22. Long support beam; 23. Shackle; 24. Single-ear beam; 31. Protective cover; 32. Drive support; 33. Drive motor; 34. Drive shaft; 35. Rolling shaft; 36. Push rod; 37. Short rotating shaft of support beam; 38. Turn plate; 39. Sliding shaft; 310. Retaining spring; 311. Large gear; 312. Small gear; 313. Bayonet pin; 314. Bushing; 315. Long rotating shaft of support beam; 316. Arc slide; 317. Curved slide; 318. Rectangular shaft segment; 319. Rectangular slide; 320. Opening slot; 321. Opening slot A. DETAILED DESCRIPTION

[0050] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0051] Example 1:

[0052] like Figure 1-3 As shown, a two-way fully openable semicircular tent includes a tarpaulin 1 with concealing camouflage functionality, reinforcing cables 4, and two sets of opening and closing mechanisms 3. Two or more structural beams 2 are installed between the two sets of opening and closing mechanisms 3. The tarpaulin 1 is installed on the structural beams 2 through straps, and the reinforcing cables 4 are connected to the structural beams 2 through shackles 23 on the structural beams 2.

[0053] Specifically, the present invention comprises a plurality of structural beams 2 forming a tent frame, the number of which depends on the size of the tent. The larger the tent, the more structural beams 2 it has. The tarpaulin 1 is fixed to the structural beams 2 by straps provided on the tarpaulin 1 and wrapped around the outside of the tent frame formed by the structural beams 2. Two sets of opening and closing mechanisms 3 are provided on both sides of the tent, and each structural beam 2 is installed on the opening and closing mechanism 3. The opening and closing mechanism 3 is installed on the concrete floor or on piles driven into the soil by bolts, thereby being fixed to the ground; a plurality of reinforcing ropes 4 of the same structural form but different lengths are installed through the shackles 23 on the structural beams 2 to enhance the stability and wind resistance of the tent structure.

[0054] Example 2:

[0055] like Figure 3 As shown, a two-way fully openable semicircular tent is different from Example 1 in that the structural beam 2 includes a single-ear beam 24, N long support beams 22 and short support beams 21 arranged at both ends, the short support beam 21, N long support beams 22, the single-ear beam 24 and the short support beam 21 are connected end to end in sequence, and the two ends of the two short support beams 21 are respectively connected to the two sets of opening and closing mechanisms 3, and a ring is provided on the long support beam 22, and the shackle 23 is installed on the long support beam 22 through the ring; wherein N is a positive integer ≥ 2.

[0056] Specifically, if Figure 4-6As shown, a structural beam 2 is composed of two short support beams 21, multiple long support beams 22 and a single ear beam 24. The number of long support beams 22 depends on the size of the tent. The short support beams 21 and the long support beams 22, the long support beams 22, and the long support beams 22 and the single ear beam 24 are fixedly connected by two sets of bolts. Both ends of the short support beam 21 are double-ear structures. The double-ear seat at one end is longer and is provided with pin holes for easy fixation with the rotating plate 38 and the small gear 312. The double-ear seat at one end is shorter and is provided with double holes for easy fixation with the long support beam 22, and a certain angle is formed, thereby forming a certain arch structure of the structural beam 2. The two ends of the long support beam 22 are single-ear seat and double-ear seat structures respectively, which are convenient for the installation between the long and short support beams and the long support beam 22, and a group of rings are provided at one end of the double-ear seat for installing the shackle 23; both ends of the single-ear beam 24 are single-ear seats, and are provided with double holes, which are convenient for connection and fixation with the long support beam 22 and the short support beam 21, and forming a certain angle, thereby making the structural beam 2 form a certain arch structure.

[0057] like Figure 7-15 As shown, the opening and closing mechanism 3 includes a driving support 32, a short rotating shaft 37 of the support beam, a rotating plate 38, a sliding shaft 39, a driving mechanism installed on the driving support 32 and a shifting rod 36 connected to the driving mechanism. The driving support 32 is provided with an arc-shaped sliding groove 316 and a curved sliding groove 317; the rotating plate 38 is inserted in the middle of the double-ear seat on the short support beam 21, the short rotating shaft 37 of the support beam passes through the rotating plate 38 and the short support beam 21 and is locked by a nut, so that the structural beam 2 is installed on the rotating plate 38, and the structural beam 2 can rotate around the short rotating shaft 37 of the support beam; the sliding shaft 39 is installed on the rotating plate 38, and the two ends of the sliding shaft 39 are clamped in the arc-shaped sliding groove 316 on the driving support 32, and the axial position of the sliding shaft 39, the driving support 32 and the rotating plate 38 is limited by the retaining spring 310.

[0058] The drive mechanism includes a drive motor 33 and a drive shaft 34. The drive motor 33 is bolted to the drive support 32. The drive shaft 34 passes through the drive support 32 and is mounted on the drive motor 33. The drive shaft 34 is provided with a rectangular shaft section 318. One end of the shift lever 36 is mounted on the drive shaft 34 through the rectangular shaft section 318 and a rectangular slot 319 provided on the shift lever 36. Each opening and closing mechanism 3 is equipped with two drive mechanisms, one of which controls the expansion and contraction of the structural beam 2 to the two sides.

[0059] A rolling shaft 35 is mounted on the lever 36, which slides within the curved chute 317. The rotating plate 38 is provided with an open slot A321, through which the drive shaft 34 passes. The drive motor 33 drives the drive shaft 34, the rolling shaft 35, the lever 36, and the sliding shaft 39, enabling the rotating plate 38 to rotate along the path of the structural beam 2's expansion / closure, driven by the drive motor 33. Specifically, one end of the rolling shaft 35 is a short shaft made of a wear-resistant, high-strength, and self-lubricating material, facilitating its sliding within the curved chute 317 while enhancing the strength and stability of the opening and closing mechanism 3.

[0060] Furthermore, if Figure 10 As shown, the opening and closing mechanism 3 also includes a rotation speed limiting component, which includes a latch 313, a long rotating shaft 315 of the support beam, a large gear 311 and a small gear 312 meshing with the large gear 311. The large gear 311 is installed on the driving support 32 by bolts, and the long rotating shaft 315 of the support beam passes through the short support beam 21, the rotating plate 38, and the shaft sleeve 314 in sequence and is then threadedly connected to the small gear 312 by a thread. The two ends of the latch 313 are respectively connected to the small gear 312 and the short support beam 21. Through the meshing of the large gear 311 and the small gear 312, the structural beam 2 can be driven by the rotating plate 38 to rotate at a specific speed according to the transmission ratio of the large gear 311 and the small gear 312, thereby avoiding the sudden falling of the opening and closing mechanism 3 during operation, thereby improving the safety of the tent during opening and closing. Among them, each set of opening and closing mechanisms 3 is provided with two rotation speed limiting components, which respectively control the structural beam 2 to expand to the two outer sides or to retract inward, and each small gear 312 is only connected to the short support beam 21 located on the outermost side, and the short support beam 21 located in the middle is expanded by gravity or retracted by extrusion.

[0061] Furthermore, if Figure 16 As shown, the driving support 32 is covered with a protective cover 31 on the outside. The arc-shaped part of the protective cover 31 is made of accordion elastic material, which can be compressed and stretched during the rotation of the structural beam 2 to play a dust-proof role.

[0062] Example 3:

[0063] like Figure 17-18 As shown, a method for opening a two-way fully openable semicircular tent, using the two-way fully openable semicircular tent as described in Example 2, includes the following steps:

[0064] S1: When in use, the drive motors 33 of the two sets of opening and closing mechanisms 3 are started in the same direction. Under the drive of the drive motors 33, the drive shaft 34 rotates, and the lever 36 rotates under the drive shaft 34 and slides within the restriction of the rectangular slide groove 319. However, since the rolling shaft 35 fixedly mounted on the lever 36 is restricted by the curved slide groove 317 on the drive support 32 during movement, the lever 36 will eventually slide and rotate along the set route;

[0065] S2: The sliding shaft 39 is driven by the shift lever 36 and restricted by the arc-shaped slide groove 316 on the driving support 32. Under the combined action of the two, the sliding shaft 39 performs a circular motion along the arc-shaped slide groove 316 on the driving support 32.

[0066] S3: The sliding shaft 39 is mounted on the rotating plate 38 and is fixed only in the axial direction. The rotating plate 38 is driven by the sliding shaft 39 to perform circular motion. At the same time, the rotating plate 38 can rotate around the sliding shaft 39. Therefore, under the reaction of the sliding shaft 39, the rotating plate 38, and other components mounted on the rotating plate 38, the rotating plate 38 rotates around the sliding shaft 39 while performing circular motion with the sliding shaft 39.

[0067] S4: The structural beams 2 on both sides are only axially fixed to the rotating plate 38 through the long rotating shaft 315 of the supporting beam, and the structural beams 2 and the rotating plate 38 can rotate relative to each other, and can also make circular motion together with the rotating plate 38; the structural beam 2 in the middle is only axially fixed to the rotating plate 38 through the short rotating shaft 37 of the supporting beam, and the structural beam 2 and the rotating plate 38 can rotate relative to each other, and can also make circular motion together with the rotating plate 38; during the process of opening the tent, the structural beams 2 will gradually move closer to one side, and eventually the structural beams 2 will be squeezed and stacked together; during the process of closing the tent, the structural beams 2 will gradually be pulled apart to a certain angle under the traction limit of the tarpaulin 1, and eventually the structural beams 2 will be at a certain angle to each other. Therefore, under the combined effects of the driving of the rotating plate 38, the gravity of each structural beam 2, the squeezing of other structural beams 2, and the traction of the tarpaulin 1, all the structural beams 2 move in a circle along with the rotating plate 38, while the middle structural beam 2 rotates around the short pivot axis 37 of the supporting beam, and the structural beams 2 on both sides rotate around the long pivot axis 315 of the supporting beam, thereby ultimately realizing the opening and closing of the tent.

[0068] S5: The tent can be fully opened and closed in both directions by starting the drive motors 33 in different directions.

[0069] To prevent the opening and closing mechanism 3 from falling suddenly during operation, each small gear 312 is connected only to the short support beam 21 located on the outermost side. By meshing the large gear 311 with the small gear 312, the short support beam 21 located on the outermost side can be driven by the rotating plate 38 to rotate at a specific speed according to the transmission ratio of the large gear 311 and the small gear 312, thereby controlling the speed of the structural beam 2 located on the inner side.

[0070] Specifically, when the tent is closed, the large gear 311 and the small gear 312 with equal modules are in meshing state. Figure 17 As shown), or in the process of opening the tent from a certain angle to closing, the structural beams 2 on both sides can rotate relative to the rotating plate 38 through the long rotating shaft 315 of the supporting beam under the action of gravity, the compression of the structural beam 2, and the traction of the tarpaulin 1, thereby causing the side structural beams 2 to suddenly fall, thereby generating a large instantaneous reaction force acting on the interior of the structure. Therefore, the large gear 311 is fixedly mounted on the driving support 32, and the small gear 312 is fixedly mounted on the short supporting beam 21 of the structural beams 2 on both sides. In the process of the tent from closing to opening a certain angle or from opening a certain angle to closing, the small gear 312 is subjected to the circumferential force of the large gear 311, and the force is applied to the side structural beam 2 to prevent the rapid rotation caused by the falling of the side structural beam 2, thereby avoiding the phenomenon of sudden falling. After the tent is opened to a certain angle, the small gear 312 will disengage from the large gear 311, and as the side structural beam 2 rotates around the long rotating shaft 315 of the supporting beam, it will also make a circular motion with the rotating plate 38. When the tent is closed to a certain angle, the small gear 312 meshes with the large gear 311, preventing the side structure beam 2 from rotating rapidly around the long shaft 315 of the supporting beam, and instead rotating at a speed with a certain transmission ratio.

Claims

1. A two-way fully openable semicircular tent, characterized by: The invention comprises a tarpaulin (1), a reinforcing cable (4) and two sets of opening and closing mechanisms (3), wherein two or more structural beams (2) are installed between the two sets of opening and closing mechanisms (3), the tarpaulin (1) is installed on the structural beam (2) through a strap, and the reinforcing cable (4) is connected to the structural beam (2) through a shackle (23) on the structural beam (2); The structural beam (2) comprises a single-ear beam (24), N long supporting beams (22) and short supporting beams (21) arranged at both ends, the short supporting beam (21), the N long supporting beams (22), the single-ear beam (24) and the short supporting beam (21) are connected end to end in sequence, and the two ends of the two short supporting beams (21) are respectively connected to the two sets of opening and closing mechanisms (3), wherein N is a positive integer ≥ 2; The opening and closing mechanism (3) comprises a driving support (32), a short rotating shaft (37) of the supporting beam, a rotating plate (38), a sliding shaft (39), a driving mechanism mounted on the driving support (32), and a shifting rod (36) connected to the driving mechanism. The driving support (32) is provided with an arc-shaped sliding groove (316) and a curved sliding groove (317); the rotating plate (38) is inserted in the middle of the double-ear seat on the short supporting beam (21), and the short rotating shaft (37) of the supporting beam passes through the rotating plate (3 8) and the short support beam (21) and locked by nuts, the structural beam (2) is installed on the rotating plate (38), and the structural beam (2) can rotate around the short rotating shaft (37) of the support beam; the sliding shaft (39) is installed on the rotating plate (38), and the two ends of the sliding shaft (39) are clamped in the arc-shaped sliding groove (316) on the driving support (32), and the axial position of the sliding shaft (39), the driving support (32) and the rotating plate (38) is limited by the retaining spring (310); The driving mechanism includes a driving motor (33) and a driving shaft (34), wherein the driving motor (33) is mounted on the driving support (32) via bolts, the driving shaft (34) passes through the driving support (32) and is mounted on the driving motor (33), a rectangular shaft section (318) is provided on the driving shaft (34), and one end of the shifting rod (36) is mounted on the driving shaft (34) via the rectangular shaft section (318) and a rectangular slide groove (319) provided on the shifting rod (36); A rolling shaft (35) is further mounted on the shifting rod (36), and the rolling shaft (35) can slide in the curved sliding groove (317). An opening groove A (321) is provided on the rotating plate (38), and the driving shaft (34) passes through the opening groove A (321). The driving motor (33) drives the driving shaft (34), the rolling shaft (35), the shifting rod (36) and the sliding shaft (39), so that the rotating plate (38) can be rotated along the route of opening / closing the structural beam (2) under the drive of the driving motor (33).

2. The two-way fully openable semicircular tent according to claim 1, characterized in that: The opening and closing mechanism (3) further includes a rotation speed limiting assembly, which includes a latch (313), a long rotating shaft (315) of the support beam, a large gear (311), and a small gear (312) meshed with the large gear (311). The large gear (311) is mounted on the driving support (32) by means of bolts. The long rotating shaft (315) of the support beam passes through the short support beam (21), the rotating plate (38), and the shaft sleeve (314) in sequence and is then threadedly connected to the small gear (312) by means of a thread. The two ends of the latch (313) are respectively connected to the small gear (312) and the short support beam (21). The large gear (311) meshes with the small gear (312), so that the structural beam (2) can be driven by the rotating plate (38) to rotate according to the transmission ratio of the large gear (311) and the small gear (312).

3. The two-way fully openable semicircular tent according to claim 1 or 2, characterized in that: The driving support (32) is covered with a protective cover (31) on the outside. The arc-shaped portion of the protective cover (31) is made of an organ elastic material and can be compressed and extended during the rotation of the structural beam (2).

4. The two-way fully openable semicircular tent according to claim 1 or 2, characterized in that: The structural beam (2) is an arched structure, and a ring is provided on the long supporting beam (22), and the shackle (23) is installed on the long supporting beam (22) through the ring.

5. A method for opening a two-way fully openable semicircular tent, characterized by: The bidirectional fully openable semicircular tent according to claim 2 includes the following steps: S1: When in use, the driving motors (33) of the two sets of opening and closing mechanisms (3) are started in the same direction. Under the drive of the driving motor (33), the driving shaft (34) rotates, and the lever (36) rotates under the drive of the driving shaft (34) and slides under the restriction of the rectangular slide (319). However, since the rolling shaft (35) fixedly mounted on the lever (36) is restricted by the curved slide (317) on the driving support (32) during movement, the lever (36) will eventually slide and rotate according to the set route; S2: The sliding shaft (39) is driven by the shift lever (36) and restricted by the arc-shaped slide groove (316) on the driving support (32). Under the combined action of the two, the sliding shaft (39) performs a circular motion along the arc-shaped slide groove (316) on the driving support (32); S3: The sliding shaft (39) is mounted on the rotating plate (38) and is only fixed in the axial direction. The rotating plate (38) performs circular motion under the drive of the sliding shaft (39). At the same time, the rotating plate (38) can rotate around the sliding shaft (39). Therefore, under the reaction of the sliding shaft (39), the rotating plate (38) and other components mounted on the rotating plate (38), the rotating plate (38) rotates around the sliding shaft (39) while performing circular motion with the sliding shaft (39); S4: Each structural beam (2) is axially fixedly installed through the supporting beam short rotation axis (37), the supporting beam long rotation axis (315) and the rotating plate (38). Therefore, under the combined action of the driving of the rotating plate (38), its own gravity, the extrusion of other structural beams (2) or the pulling of the tarpaulin (1), each structural beam (2) will rotate around the supporting beam short rotation axis (37) and the supporting beam long rotation axis (315) while performing circular motion, thereby realizing the opening and closing of the tent; S5: The tent can be fully opened and closed in both directions by starting the drive motor (33) in different directions.

6. The method for opening a two-way fully openable semicircular tent according to claim 5, characterized in that: In order to prevent the opening and closing mechanism (3) from falling suddenly during operation, each small gear (312) is connected only to the short support beam (21) located on the outermost side. The large gear (311) is meshed with the small gear (312), so that the short support beam (21) located on the outermost side can be rotated according to the transmission ratio of the large gear (311) and the small gear (312) under the drive of the rotating plate (38), thereby controlling the speed of the structural beam (2) located on the inner side.

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