127results about How to "Expand quickly" patented technology

This invention discloses a landing buffer device for unmanned aerial vehicles (UAVs), relating to the field of aviation equipment technology. By integrating the roller body and the sliding plate as two grounding structures onto the landing gear, the device can quickly switch operating modes according to ground conditions through the linkage of the piston cylinder and piston rod. On flat ground, the roller is used first to reduce gliding resistance, while on muddy or slippery ground, the sliding plate is used for grounding, effectively preventing roller jamming and enhancing all-terrain adaptability and landing safety. Simultaneously, the mechanical buffer composed of a second and third spring, combined with the hydraulic damping buffer composed of buffer components, forms a highly efficient double-layer energy-absorbing buffer structure, which to a certain extent alleviates the damage to the aircraft and equipment caused by landing impact, thus improving the landing safety of the UAV.

The utility model discloses a rescue air cushion convenient to carry, including box, air bag pad and movable board, the inside of box is provided with the cavity, and the one side of box is provided with the notched of being linked with the cavity, and the upper and lower both ends of notched inboard all are through the pivot respectively installed with roll axle no.

This invention relates to a portable foldable tandem wing aircraft, comprising a frame, a front wing, an arm, a rear wing, a battery pack, a linear motor, a chuck, a mounting base, a first sliding plate, a first spring, a chuck return spring, a second spring, a second sliding plate, arm-wing connectors, a self-locking structure, and a double-ball-joint connecting rod. The mounting base and chuck are located in the middle of the battery pack. The chuck is connected to the output shaft of the linear motor, and the chuck return spring is connected to the mounting base and the chuck. The first sliding plate is slidably mounted on the front end of the battery pack, and the first spring is connected to the first sliding plate. The sliding plate is connected to the fixed base; the second sliding plate is slidably mounted at the rear end of the battery cylinder, and the second spring is connected to the second sliding plate and the battery cylinder; the arm wing connector is located at the front end of the battery cylinder, and the upper and lower ends of the arm wing connector are respectively connected to the arm, the head of the arm is rotatably connected to the arm wing connector, and is rotatably connected to the first sliding plate through a self-locking structure; the left and right sides of the arm wing connector are rotatably connected to the front wing, and the two sides at the rear end of the battery cylinder are rotatably connected to the rear wing; in the folded state, the arm and the rear wing are both locked together with the chuck. This aircraft is not only easy to carry, but also improves the stability during flight.

The utility model relates to the technical field of takeoff and landing protection equipment, and discloses takeoff and landing protection equipment for an unmanned aerial vehicle, which comprises an unmanned aerial vehicle body, and a display connection signal screen is fixedly mounted on the outer wall of the unmanned aerial vehicle body. The foldable light and thin mounting plate is rapidly folded and unfolded through the rotating hinge and the small hydraulic push rod, in the flight state, the mounting plate is folded and tightly attached to the fuselage, air resistance is effectively reduced, the flight efficiency is improved, before landing, the hydraulic push rod rapidly pushes the mounting plate to be unfolded to the horizontal position, and the supporting area is enlarged; the unmanned aerial vehicle is in direct contact with the ground in cooperation with an anti-skid balancing weight, the friction force between the unmanned aerial vehicle and the ground is increased, the unmanned aerial vehicle is effectively prevented from sliding or rollover after landing, meanwhile, an inflation pump is arranged in an inflation box to inflate a buffering air bag, a flexible protection layer surrounding the unmanned aerial vehicle is formed, falling impact is effectively relieved, and the unmanned aerial vehicle is protected from falling. And the effect of improving the protection safety is achieved.

This utility model discloses a foldable flatbed truck for transporting bottled water, relating to the field of flatbed truck technology. The utility model includes a first transport plate, with a second transport plate hinged to one side of the first transport plate. Positioning mechanisms are provided at the front and rear ends of both the first and second transport plates, and protective mechanisms are provided at the top of both plates. This utility model, through the hinged structure of the first and second transport plates, combined with the hooks and positioning posts in the positioning mechanism, achieves rapid folding and unfolding of the flatbed truck. When folding, simply disengaging the hooks and positioning posts allows the two transport plates to be folded in half, significantly reducing the size of the equipment, facilitating storage and carrying, and effectively solving the problem of large space occupation by traditional flatbed trucks. The positioning mechanism can firmly lock the first and second transport plates when the flatbed truck is unfolded, preventing relative displacement during transportation.

The utility model discloses a surveying and mapping support of quick folding and folding, relates to engineering surveying and mapping technical field. Including base, the base top is fixed with surveying and mapping appearance, the base bottom hinged mounting has tripod, the tripod is by two vice branch and a main branch, the tripod surface sliding sleeve joint has the tightening frame, the main branch surface recessed is provided with the toothing, the tightening frame inner wall sliding installation has the pawl, the pawl elasticity is connected in the toothing inner wall, the tightening frame surface fixed mounting has the handle, through folding up the folding of tripod, by the tightening frame sleeve setting in the tripod surface, thereby avoiding the dispersion of tripod moving process, and in the process by the pawl elasticity and be connected in the toothing inner wall make up the tightening frame can stably sleeve setting in the main branch surface, ensure the stable storage of three -legged frame to can hold the handle and raise the tripod horizontally, convenient to carry.

The application relates to the aluminum alloy processing technical field and discloses a new energy truck aluminum alloy box body, which comprises a detachable truck box frame, the truck box frame comprises aluminum alloy side plates spliced through supports, triangular irons are arranged at the corner positions of the supports, rotatable inner frames are arranged on the aluminum alloy side plates, a traction assembly for driving the inner frames to rotate is further arranged in the truck box frame, the traction assembly comprises matched extension plates and rollers, and a sliding cylinder is slidably arranged on a vertical column; the truck box frame further comprises a bottom plate, a limiting assembly for fixing the inner frames is arranged on the periphery of the bottom plate, the limiting assembly comprises a limiting pin sleeved in a limiting cylinder, a limiting spring and a limiting rope are connected to the bottom end of the limiting pin, the other end of the limiting rope penetrates through the limiting cylinder and is connected to a cylinder, a suspension spring is arranged on the sliding cylinder, and the roller is not in contact with the extension plate when the inner frame is in a vertical state. Compared with the prior art, the application solves the problems such as low truck box unloading efficiency.

The utility model discloses an outdoor dining table convenient to fold and store, and relates to the technical field of outdoor dining tables, the outdoor dining table convenient to fold and store comprises four bearing rods, a table plate is arranged above the four bearing rods, side plates are rotatably connected to the two sides of the table plate, a storage mechanism is arranged at the tops of the bearing rods, and the storage mechanism comprises a storage assembly and a stabilizing assembly. The storage assembly and the stabilizing assembly are used in cooperation, the storage assembly comprises rotating blocks, the rotating blocks are symmetrically and fixedly connected to the outer side of the bearing rod, rotating plates are rotationally connected to the interiors of the rotating blocks, and the two rotating plates on the same side are rotationally connected. According to the outdoor dining table convenient to fold and store, through the arrangement of the storage mechanism, the outdoor dining table can be rapidly folded and unfolded, storage and carrying are convenient, a large space is not occupied in the transportation process, the transportation and use cost is reduced, the use comfort is improved, the structure is simple, and practicability is high.

The utility model discloses a tourist flow shunting device relates to the technical field of scenic spot device, including fixed frame and movable frame, one side of fixed frame is equipped with the vertical board no.

The utility model relates to a portable teaching dance pad which comprises a silica gel pad, an air bag, a fixing frame, an elastic folding plate and a traction rope. The air bags are arranged in the upper surface of the silica gel pad in a linear array; the fixing frames are fixedly connected to the front end and the rear end of the silica gel pad respectively and are symmetrical to each other. The elastic folding plate is arranged below the silica gel pad, and the two ends of the elastic folding plate are fixedly connected with the fixing frames on the two sides correspondingly. The traction rope is arranged between the lower portions of the fixing frames on the two sides, one end of the traction rope is fixedly connected with the fixing frame on one side, and the other end of the traction rope penetrates out of the fixing frame on the other side. According to the utility model, under the cooperative use of the elastic folding plate and the traction rope, not only can the dance pad be conveniently folded by a student, but also the dance pad can be quickly unfolded, and the portability of the dance pad can be effectively improved.

The present application belongs to the technical field of electromagnetic signal interference troubleshooting, and particularly relates to a coaxial rotor electromagnetic signal interference troubleshooting system and method with a foldable launching cylinder. The electromagnetic signal interference troubleshooting system adopts a coaxial rotor unmanned aerial vehicle carrying a foldable direction-finding antenna array. The aerial part is foldable as a whole and can be accommodated in a launching cylinder after folding. The system can be launched by the launching cylinder, facilitating portability and rapid deployment, and meeting the application requirements of special occasions such as in-vehicle launching or airborne dropping. The coaxial rotor unmanned aerial vehicle carries a multi-antenna monitoring and direction-finding load. The coaxial rotor unmanned aerial vehicle flies in a tilted rotor disc mode. Compared with a multi-rotor unmanned aerial vehicle, the attitude changes little during flight, and the influence on the antenna array attitude is small. The unmanned aerial vehicle can continuously direction-find electromagnetic targets during flight. The system is provided with an antenna control mechanism, which can adaptively adjust the antenna array spacing in the air according to the required frequency range, expand the direction-finding frequency range of the system, avoid ambiguity, and improve the working efficiency of the system.

The utility model relates to a display stand technical field especially a kind of mechanism and display stand for display stand connection and folding, first inner tube is used to be connected with a bar piece;Second inner tube is used to be connected with adjacent another bar piece;Movable hinged joint is connected with first inner tube and second inner tube respectively at both ends;Spring shaft is connected with one end of movable hinged joint by passing through first inner tube;Elastic member is sleeved on spring shaft;In folding process, movable hinged joint is pulled, it is partially removed from first inner tube, and movable hinged joint is driven to compress elastic member along the axial displacement of first inner tube, to further fold the bar piece connected with second inner tube, flexibly adapt to different application scenarios needing directional folding or multidirectional rotation, high versatility, high space utilization, compact structure;Realize the quick folding and unfolding of display stand, without disassembly and unlocking, and the display stand after disassembly is convenient to store and carry, further improve the use convenience of display stand, and stable.

The application discloses a box-table integrated camping box, which comprises a box body and a box cover. A plurality of leg seats are arranged on the lower side of the box cover, and folding legs are arranged on the leg seats. The folding legs are unfolded to support. The bottom of the box body is clamped with the upper part of the box cover. After the folding legs on the box cover are unfolded, the box body is placed on the box cover for use. Through the above technical scheme, the box cover is ingeniously reused as a support structure of the table leg, so that the height of the table top can be quickly converted (such as two gears of high and low). The high position mode is in line with ergonomics, and can be comfortably matched with a camping chair or a folding stool. The low position mode is perfectly matched with a picnic mat, and meets the demand of users sitting on the ground. In addition, the flexible size and adjustable height of the box-table integrated camping box can be widely applied to camping cars, bed cars, automobile trunks and even balconies and courtyards, and the practicality and universality are far higher than those of traditional products with single function.

The application discloses a quick-expanding underwater oil spill collecting cover, which comprises a recovery pump, an opening-cup device and an opening-cup framework, wherein the bottom of the recovery pump is provided with the opening-cup device, the opening-cup device is provided with the opening-cup framework, the opening-cup device and the opening-cup framework form a cover body structure, a plurality of baffle plates are transversely densely arranged on the opening-cup framework to form a collecting cover surface, the opening-cup framework is rotationally connected with the baffle plates, and the baffle plates are rotationally controlled through a baffle plate control device arranged on the collecting cover. The collecting cover surface is formed in the way that the plurality of baffle plates are transversely densely arranged, the baffle plates rotate around a central shaft, and the function of underwater expansion of the collecting cover is realized. When the collecting cover is lowered to the vicinity of an oil spill point to perform underwater opening, the baffle plates are rotated and opened, are parallel to the direction of the water flow resistance during expansion, greatly reduce the expansion resistance, and realize quick expansion. After the underwater opening is completed, the baffle plates are closed and reset, so that the collecting cover surface is sealed, the water inside and outside the collecting cover is effectively separated, and the function of the collecting cover to collect the oil spill is ensured.

The application provides a soft structure and a processing method thereof and a soft robot, and belongs to the technical field of growing robots, and comprises a main air chamber and at least two sub air chambers, the sub air chambers are distributed in a ring shape along the outer peripheral surface of the main air chamber and extend along the axial direction of the main air chamber; a plurality of extension turning parts are arranged in each sub air chamber, the extension turning part comprises a first buckle and a second buckle, and the first buckle and the second buckle are fixedly arranged on the inner wall of the sub air chamber; wherein, when the first buckle and the second buckle are buckled, a wrinkle part is formed in the sub air chamber; when the first buckle and the second buckle are separated, the wrinkle part can be unfolded; when the soft structure is stretched out, the corresponding sub air chamber is inflated, and the first buckle and the second buckle are automatically separated; an air nozzle, the air nozzle is communicated with the corresponding sub air chamber and is used for inflating the sub air chamber; the advantage is that when the soft structure is stretched out from the main air chamber, the corresponding sub air chamber is inflated, the cross-sectional size of the sub air chamber is changed, the first buckle and the second buckle are relatively displaced and separated, and the wrinkle part is unfolded as required.

This invention discloses an emotion analysis and feedback device based on visual and audio recognition in the field of psychological instruments and equipment technology. The device includes: a mobile base; a functional panel, vertically fixed to the top of the mobile base; a positioning ring, vertically suspended to the side of the functional panel, with an internal opening larger than the frontal contour of the human body, used for centering the user and restricting their sitting posture; a connecting arm, one end connected to the lower end of the functional panel and the other end connected to the positioning ring, used to support the positioning ring in a suspended state; and a flexible covering assembly located above the connecting arm, its surface forming a sloped structure facing the functional panel, used to guide the user's gaze to focus on the functional panel. This device features a hollow, large-sized positioning ring, which can center and align the user's torso and correct their sitting posture, avoiding blind spots caused by posture deviation. Combined with multi-directionally deployed visual and audio acquisition components, it significantly improves the accuracy of emotion analysis.

The utility model discloses a cantilever extension type waterproof spraying machine for constructional engineering, which comprises a spraying machine, a mounting plate is fixed on the outer wall of the spraying machine, a support plate is fixed on the side wall surface of the mounting plate, a swing arm is rotatably connected in the support plate, an adjusting component is arranged at the end part of the swing arm, and the adjusting component is fixed on the mounting plate. An extension arm fixing assembly is arranged at the bottom end of the swing arm, a first extension arm is fixed in the extension arm fixing assembly, an extension arm connecting piece is rotationally connected to the end of the first extension arm, a second extension arm is rotationally connected to the end of the extension arm connecting piece, and a spray head is rotationally connected to the end of the second extension arm. According to flexible spraying arm adjustment, a swing arm can swing in a supporting plate, in cooperation with a swing arm adjusting rod in an adjusting assembly, the swing arm can be flexibly controlled to swing in the spraying process, a first stretching arm and a second stretching arm are driven to swing, uniform swing spraying of different areas is achieved, the spraying coverage range is widened, the spraying uniformity is improved, and the manual spraying supplementing workload is reduced.

The utility model belongs to charging technical field, specifically speaking is a kind of fast charging device for emergency light, including base, the fixed frame is fixed on the base, the fixed frame is fixed on the one side wall of two limit sliding rails, two limit sliding rails are all slidably equipped with sliding sleeve, two sliding sleeves are cooperatively fixed with mounting seat, the battery is set up on the mounting seat, the charger is installed on the side wall of mounting seat, the fixed frame is set up with multiple positioning jack on one side, the fixed block is fixed on the outside wall of mounting seat;The utility model can adjust the height of charger according to the actual height of emergency light when using, ensure that charger is at the best charging height for emergency light, can accurately match the actual height of different emergency light, avoid the low charging efficiency, poor contact, even unable to charge lamp problem caused by height mismatching.

The utility model belongs to the technical field of tobacco leaf transportation, and particularly discloses an unmanned aerial vehicle fresh tobacco leaf packaging and transporting device which comprises a plurality of sets of shear type supports connected through hinge shafts, arc-shaped frames are arranged on the upper portions of the shear type supports and jointly form a semicircular bearing cavity, and bearing plates are arranged between the adjacent shear type supports for connection. The two ends of the upper portion of the shear type support are fixedly connected with positioning blocks respectively, the positioning block on one side is connected with a fixing belt, the tail end of the fixing belt is hinged to a buckle, the positioning block on the other side is connected with an adjusting belt, and the positioning blocks on the two sides are further connected with hanging rings. Connecting rods are further arranged on the lower portions of the shear type supports to be connected with the supports on the same side, and nuts are connected to the connecting rods in a threaded mode. Intermediate links of traditional manual carrying are remarkably reduced, terrain limitation is broken through by means of an air transportation path, integrated efficient operation from field packaging to unmanned aerial vehicle transferring of fresh tobacco leaves is integrally achieved, the labor intensity of tobacco growers is reduced, and meanwhile the efficiency and reliability of transportation operation are improved.

The utility model relates to the technical field of jack, and disclose a lateral swing formula jack stable support, including support board, set up in the support board bottom for improving the support frame of overall stability and install in the support frame bottom for increasing the contact area and friction of ground stable net, the support board is opened with a plurality of diagonal distribution's round hole, the edge of stable net is fixedly provided with at least three groups of the connecting ring that is circumferential array distribution, the connecting ring is used for fixing stable net and support frame, the center of stable net is opened with through -hole, a plurality of convex blocks are fixedly installed in the grid junction of stable net, the utility model discloses the support frame initiative anchoring ground through the unfolding, and combine large -area antiskid stable net, formed double security mechanism, effectively solved the difficult problem that traditional support is easy to sink, slip and overturn on the complex ground.

This invention discloses a turning assist device for the treatment of cardiovascular and cerebrovascular diseases, relating to the technical field of medical turning assist equipment. The device's main body contains a drive mechanism, and the top of the drive mechanism has two sets of turning mechanisms. Each turning mechanism includes a rotating rod, and a connecting shaft is located on the outer side of the rotating plate, rotatably connected to the bottom of a mattress. The top of the main body has two sets of air cushions, and the bottom of each air cushion has a pressurizing mechanism. The pressurizing mechanism includes a Roots pump housing, inside which are two sets of Roots pump rods. A shunt pipe is connected to the outer side of each Roots pump rod, and the shunt pipe is connected to the air cushion pipe. By simultaneously driving the turning mechanism and the pressurizing mechanism through the drive mechanism, when the rotating rod, in conjunction with buffer damping, raises and lowers the rotating plate, the rotating plate rotates around the connecting shaft to perform the turning operation. Simultaneously, the Roots pump rods in the pressurizing mechanism rotate inside the Roots pump housing, allowing air pressure to be transmitted through the shunt pipe to the air cushion to support the user's back.

The utility model belongs to deck chair technical field, especially relates to a support foot linkage of folding deck chair and support mechanism, including bed body and be used for supporting the support frame of bed body, the bed body includes the seat frame and backrest that can be relatively folded, and the support frame is arranged on the seat frame, and the support foot is rotationally arranged on the backrest, and the transmission connecting rod is between the support foot and the seat frame, and the transmission connecting rod is rotationally connected with the support foot and the seat frame respectively, the backrest is controlled and is unfolded with the seat frame, and the transmission connecting rod can drive the support foot and the backrest to unfold oppositely, thereby making the support foot can support the backrest, the backrest is controlled and is folded with the seat frame, and the transmission connecting rod can drive the support foot and the backrest to fold oppositely and draw together, the transmission connecting rod is telescopic link, or, a plurality of installation sites are set up on the transmission connecting rod and are connected with the support foot and the seat frame, the utility model's purpose lies in providing a support foot linkage of folding deck chair and support mechanism that is stable in structure and is convenient to store and transport.

The utility model provides a kind of integrated compartment house's advertisement and ventilation guide board belongs to advertising field, including mounting plate, the side of mounting plate is provided with folding support assembly, the side of folding support assembly is provided with ventilation component;The folding support assembly includes the first plate hinged to the side of mounting plate, the first plate one end is hinged with second plate, and the second plate one end is hinged with mounting bracket, the utility model will guide board be converted into integrated air treatment terminal, the directional introduction of external air is realized by external fresh air source, and efficient purification is completed in equipment inside, finally clean airflow is accurately released to guide board peripheral area, this design directly aims at the problem of hypoxia, stuffy of people flow dense closed space such as integrated compartment house, while providing guide service, actively improve local micro-environment air quality, significantly improve visitor's comfort.

This utility model discloses an automatically pop-out selfie stick, including a rod body. The rod body includes a connector and several support feet rotatably connected to the bottom of the connector. A connecting rod is movably connected to one side of the support feet facing the inside of the rod body. A spring-loaded component connected to the connecting rod is fixedly provided on the side of the support feet connected to the connecting rod. A locking structure for fixing the several support feet in a closed state is also movably connected to the other end of the connecting rod. By setting the spring-loaded component and the connecting rod on the support feet, the connecting rod is used to open the support feet outward, while the spring-loaded component pulls on the connecting rod. The connecting rod, support feet, and spring-loaded component are interconnected. When the support feet are in a closed state, the spring-loaded component generates a pulling force on the connecting rod. When the support feet are disengaged from the locking structure, the angle between the connecting rod and the support feet decreases, thereby quickly opening the support feet outward.

The invention discloses a roadway stacking machine for paper-plastic cup stand production, and belongs to the field of stacking machines, the roadway stacking machine comprises a base, and the upper end of the base is fixedly connected with a fixing plate and a mounting frame. The inner side of the mounting frame is fixedly connected with an electric guide rail, and the inner side of the fixing plate is fixedly connected with a bearing plate. Spatial compression and dynamic unfolding of the stacker material taking device during extending are achieved, linear extending movement of the bearing plate A is synchronously converted into rotating movement of the rotating cylinder through cooperation of a spiral groove in the fixing rod and a sliding shaft in the rotating cylinder, the speed is reduced, torque is increased, the direction is changed, a linkage rod is driven to swing through a worm and worm gear pair, and the material taking device is driven to rotate. The bearing plate B is pushed through the sliding groove to stretch out in an accelerated mode, the longitudinal space in the roadway is greatly saved, and more goods positions are allowed to be arranged; and when goods are taken, the bracket can be quickly unfolded to form a complete bracket with enough bearing span.

The utility model discloses a foldable fabric box which comprises a box body, an observation window is fixed to the side wall of the box body, supporting rods are symmetrically fixed to the top end and the bottom end of the inner wall of the box body, sleeves are connected to the outer walls of the supporting rods in a sliding mode, polish rods are rotationally connected to the inner sides of the sleeves, and the inner sides of the polish rods on the two sides are rotationally connected. A groove block is fixed to the outer wall of the polished rod, and a fixing piece is arranged in the groove block. Through the sliding fit design of the polished rod, the sleeve and the supporting rod, convenient folding and rapid unfolding of the box body are achieved, when the box body is unfolded, the polished rod drives the supporting rod to open the top end and the bottom end of the box body, a clamping plate is matched for limiting and fixing the rotating shaft of the polished rod, and a top block is matched for clamping and fixing a groove block, so that the box body has reliable structural stability in the using state; deformation or collapse is effectively avoided, the storage requirement is met, storage, carrying and storage are facilitated, and the space utilization rate and use scene adaptability of the product are greatly improved.

The utility model discloses an adjustable building template support device, include: support block, the both sides wall of support block is provided with the rotary seat symmetry, is provided with the mounting hole in the top vertical through of support block, the side support pole is rotated installation through rotary seat, and the fixed part is installed between the both sides side support pole, and two side support poles are locked through the fixed part, the upper end of sleeve is provided with the baffle ring, and the sleeve is inserted and fixed through mounting hole, and the baffle ring is limited in the top of support block, and the inner wall of sleeve is provided with internal thread, support rod is connected with sleeve thread, and the upper end of support rod is provided with support disc, the utility model discloses through the side support pole of adjustable angle of both sides and the support rod of central, constitutes a firm triangle support structure between ground and template, and the mechanical property is excellent. Ground plate increases the grounding area, and the anti -skidding tooth prevents slipping effectively, and the independent stability of device is greatly improved.

The utility model relates to the technical field of tent frameworks, and discloses a rapid unfolding framework of an isolation tent for a station, which comprises three top frames, each top frame is composed of two mutually hinged inclined rods, two bottom ends of the three top frames are respectively hinged with a support rod, and the support rods are arranged on the top frames. An unfolding structure used for rapidly unfolding the framework is arranged between the two supporting rods located in the middle. Through the arrangement of the unfolding structure, after a user connects the supporting rods at the bottom ends of the three top frames through the connecting rods, the mounting cylinders in the mounting grooves in the left side are rotated, so that the internal pop-up rods are inserted into the mounting grooves in the right side and are kept horizontal between the two supporting rods, and the two sides of the top frames are unfolded preliminarily. Then the clamping key is pushed, the spring is reset, the pop-up rod pops up, the middle top frame is pushed to be unfolded, and other top frames are driven to be unfolded synchronously through the connecting rod. By means of the structure, the tent framework can be conveniently and rapidly unfolded, the temporary building requirement is met, and the use efficiency is effectively improved.