Large-span tent capable of being automatically unfolded and folded

Abstract

The utility model belongs to the technical field of tents, and particularly relates to a large-span automatic unfolding and folding tent which comprises a base, an automatic unfolding and folding unit and a main body frame. The base is arranged at the bottom of the tent. In the folded state, the base and the automatic unfolding and folding unit jointly support the body frame. The main body frame comprises a plurality of skeletons and supporting legs with the same number as the skeletons; the automatic folding and unfolding unit comprises a lifting mechanism, a rotating mechanism and a power control module, the lower end is connected with the base, and the upper end is connected with the rotating mechanism; the power control module is arranged on the base and electrically connected with the lifting mechanism and the rotating mechanism; the automatic unfolding and folding unit is used for lifting or descending the main body frame and driving the frameworks to be unfolded or folded in an umbrella-shaped rotating mode through the middle frame; the large-span tent aims to solve the problems that an existing large-span tent is labor-consuming and time-consuming in the unfolding and folding process, large in size and large in occupied space after being folded, and connecting parts are prone to loosening.

Description

Technical Field

[0001] The utility model belongs to the technical field of tents, and particularly relates to a large-span automatic unfolding and folding tent. Background Art

[0002] With the continuous increase of tasks such as field construction, field operations, field training, and field rescue, more and more requirements are continuously put forward for the logistics support work of personnel and materials under field conditions; among them, it is necessary to provide a safe and stable rest area for personnel and a closed and firm storage space for materials. Especially in the case of a large number of personnel and sufficient materials, large-span tents are usually adopted to provide rest and storage space for personnel and materials.

[0003] At present, there are various types and shapes of large-span tents. Some adopt frame structures, and some adopt inflatable structures, and the forms are diverse. However, the structures of large-span tents are relatively complex, requiring more support components, connection components, and larger shielding tarpaulins; and the weight of this kind of tent is relatively large, and the volume after folding is also relatively large, resulting in a large amount of manual labor and a long time required for the unfolding and folding process of the tent; moreover, the connection of the support components requires manual operation, and if not careful, the connection may become loose, thus affecting the overall stability of the tent.

[0004] Therefore, it is necessary to provide a new type of large-span tent, which can solve the problems commonly existing in current large-span tents, such as laborious and time-consuming unfolding and folding processes, large volume after folding, occupying more space, and easy loosening of the connection parts. Content of the Utility Model

[0005] The utility model provides a large-span automatic unfolding and folding tent, which is provided with an automatic unfolding and folding unit, can realize the automatic unfolding and folding of the large-span tent, and preferably solves the problems commonly existing in current large-span tents, such as laborious and time-consuming unfolding and folding processes, large volume after folding, occupying more space, and easy loosening of the connection parts. The specific content is as follows:

[0006] A large-span automatic unfolding and folding tent includes a base, an automatic unfolding and folding unit, a main body frame, and a tarpaulin;

[0007] The tent has an unfolded state and a folded state;

[0008] The base is arranged at the bottom of the tent, and one end of the upper end face is provided with the automatic unfolding and folding unit; in the folded state, the base and the automatic unfolding and folding unit jointly support the main body frame;

[0009] The main frame includes a plurality of frames and legs of the same number as the frames; in the folded state, the plurality of frames are parallel to each other and close to each other, and the first ends of adjacent frames are hingedly connected to each other; the first end of the outermost frame is provided with a middle frame; the second end of each frame is hingedly connected to the legs one by one;

[0010] The automatic unfolding and retracting unit comprises a lifting mechanism, a rotating mechanism and a power control module; the lifting mechanism is connected to the base at the lower end and connected to the rotating mechanism at the upper end; the middle frame is movably mounted on the rotating mechanism; the power control module is arranged on the upper end surface of the base and is electrically connected to the lifting mechanism and the rotating mechanism; the automatic unfolding and retracting unit is used to lift or lower the main frame and drive the plurality of skeletons to rotate and unfold or rotate and retract in an umbrella shape through the middle frame;

[0011] In the unfolded state, the tarpaulin is laid on a plurality of the frames.

[0012] Furthermore, an interbone truss is arranged between the second end of each skeleton and the second end of the adjacent skeleton; the interbone truss is a folding structure, and its two ends are respectively hingedly connected to the second ends of the adjacent skeletons for supporting the two adjacent skeletons in the unfolded state.

[0013] Furthermore, there are two main frames, namely a first main frame and a second main frame; in the folded state, the first main frame and the second main frame are folded and arranged side by side; in the expanded state, the skeletons on both sides of the first main frame and the second main frame are connected correspondingly.

[0014] Further, first extension frames are arranged on both sides of the first main frame and the second main frame; both ends of the first extension frame are connected to the corresponding two ends of the adjacent frames through short canopy trusses; the short canopy trusses are folding structures, and both ends are hingedly connected to the first extension frame and the adjacent frames respectively, and are used for supporting the first extension frame and the adjacent frames in the unfolded state; in the folded state, the four first extension frames are correspondingly parallel to the frames on both sides of the first main frame and the second main frame; in the unfolded state, the first extension frames on both sides of the first main frame are correspondingly connected to the first extension frames on both sides of the second main frame;

[0015] One end of each of the first extended frames away from the middle frame is hingedly connected to the supporting leg.

[0016] Furthermore, second expansion skeletons are arranged on the outer sides of all the four first expansion skeletons; both ends of each second expansion skeleton are connected to the corresponding ends of the adjacent first expansion skeletons through the trusses between the canopies; the trusses between the canopies are folding structures, and both ends are respectively hinged to the second expansion skeleton and the adjacent first expansion skeleton, and are used for supporting between the second expansion skeleton and the adjacent first expansion skeleton in the unfolded state; in the retracted state, the four second expansion skeletons are correspondingly parallel and close to the first expansion skeletons on both sides of the first main frame and the second main frame; in the unfolded state, the second expansion skeletons on both sides of the first main frame are correspondingly connected to the second expansion skeletons on both sides of the second main frame.

[0017] Furthermore, a connecting truss is arranged on one side of the first main frame or the second main frame; in the retracted state, the connecting truss is juxtaposed and close to the skeleton of the first main frame or the second main frame, and the first end is hinged to the middle frame of the first main frame or the second main frame; in the unfolded state, the second end of the connecting truss is detachably connected to the middle frame of the second main frame or the first main frame, so as to increase the connection strength between the first main frame and the second main frame.

[0018] Furthermore, the automatic unfolding and retracting unit further includes a first horizontal telescopic mechanism and a second horizontal telescopic mechanism; the first horizontal telescopic mechanism and the second horizontal telescopic mechanism have the same structure, are arranged in parallel and in opposite directions, the lower end surfaces of both are connected to the top end of the lifting mechanism, and the rotating mechanisms are arranged on the upper end surfaces of both; the first horizontal telescopic mechanism and the second horizontal telescopic mechanism are both electrically connected to the power control module and are used for moving the first main frame and the second main frame away from or close to each other;

[0019] The first horizontal telescopic mechanism and the second horizontal telescopic mechanism both include a horizontal telescopic driving part and a horizontal telescopic transmission part; the power output end of the horizontal telescopic driving part is connected to the power input end of the horizontal telescopic transmission part and is electrically connected to the power control module; the horizontal telescopic transmission part is a multi-stage telescopic structure;

[0020] The lifting mechanism includes a lifting driving part and a lifting transmission part; the power output end of the lifting driving part is connected to the power input end of the lifting transmission part and is electrically connected to the power control module; the lifting transmission part is a multi-stage telescopic structure and is used for lifting or lowering the first main frame and the second main frame under the drive of the lifting driving part;

[0021] The rotating mechanism includes a rotating drive unit and a cone barrel; the rotating drive unit has a power output end connected to the cone barrel and electrically connected to the power control module; the cone barrel is connected to the middle frame movable set to drive the middle frame to rotate in forward and reverse directions.

[0022] Furthermore, a telescopic fixing part is arranged between several of the skeletons and the corresponding hinged legs; the telescopic fixing part is a telescopic structure, one end of which is hingedly connected to the skeleton and the other end is hingedly connected to the leg, and a fixing part which can limit its telescopic length is arranged in the middle.

[0023] Furthermore, a support frame is disposed on the upper end surface of the base away from the automatic unfolding and retracting unit; in the folded state, the end of the main frame away from the automatic unfolding and retracting unit is movably connected to the upper end of the support frame.

[0024] The beneficial effects of the utility model are:

[0025] 1. The utility model is provided with a base, which is used to support the automatic unfolding and folding unit and the main frame in the folded state, and provides a folding platform for the folded tent, which is conducive to overall transportation and movement;

[0026] 2. The utility model is provided with a main frame, including a plurality of frames and a middle frame; when unfolded, all the frames are unfolded in an umbrella shape driven by the middle frame, and when folded, all the frames are close to each other; this structure can achieve a large unfolding and folding ratio (the ratio of the area after unfolding to the area after folding) and does not require too many manual connection operations, which solves the problem that the current large-span tents are large in size and occupy more space after folding and the connection parts are easy to loosen;

[0027] 3. The utility model is provided with an automatic unfolding and folding unit, which can lift or lower the main frame and drive the plurality of skeletons to rotate and unfold or fold in an umbrella shape through the middle frame; this structure can realize the automatic unfolding and folding of large-span tents, solving the problem that the unfolding and folding process of large-span tents is laborious and time-consuming. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of the overall structure of the tent in a folded state;

[0030] Figure 2 The overall structure of the tent in the folded state Figure 2 ;

[0031] Figure 3 Schematic diagram of the folded state structure of the first main frame or the second main frame of the tent;

[0032] Figure 4 Schematic diagram of the overall structure of the tent in the unfolded state;

[0033] Figure 5 Schematic diagram of the skeleton structure of the tent in the unfolded state;

[0034] Figure 6 Schematic diagram of the connection structure between the skeleton and the middle frame of the tent in the unfolded state;

[0035] Figure 7 Schematic diagram of the unfolded state structure of the first main frame or the second main frame of the tent (removing the first extension skeleton and the second extension skeleton);

[0036] Figure 8 Schematic diagram of the unfolded state structure of the first main frame or the second main frame of the tent;

[0037] Figure 9 Schematic diagram of the structure after the first extension skeleton and the second extension skeleton of the tent are unfolded;

[0038] Figure 10 Schematic diagram of the middle frame structure of the tent;

[0039] Figure 11 Schematic diagram of the base and the automatic unfolding and folding unit of the tent;

[0040] In the figure: 1. Base; 101. Support frame; 102. Bottom plate; 2. Automatic unfolding and folding unit; 201. Lifting mechanism; 202. Rotating mechanism; 203. First horizontal telescoping mechanism; 204. Second horizontal telescoping mechanism; 205. Distribution box; 206. Power control module; 207. L-shaped adapter block; 3. Main frame; 301. Skeleton; 302. Leg; 303. Middle frame; 3031. Skeleton fixing seat; 3032. Connection truss fixing seat; 304. Inter-bone truss; 305. First extension skeleton; 306. Short awning truss; 307. Second extension skeleton; 308. Long awning truss; 309. Connection truss; 310. Telescopic fixing part; 311. First main frame; 312. Second main frame. Detailed implementation method

[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0042] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] It should be noted that when an element is referred to as being "fixed to", "placed with", "provided with", "equipped with", "arranged on", "disposed on", or "connected to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0044] It should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] Please refer to Figures 1 to 11 for a better understanding of the specific structure of the present utility model. A large-span automatic unfolding and retracting tent provided by the present utility model includes a base 1, an automatic unfolding and retracting unit 2, a main frame 3, and a tarpaulin.

[0046] The tent has an unfolded state and a retracted state.

[0047] The base 1 is disposed at the bottom of the tent, and the automatic unfolding and retracting unit 2 is placed at one end of the upper end surface. In the retracted state, the base 1 and the automatic unfolding and retracting unit 2 jointly support the main frame 3.

[0048] The main body frame 3 includes a plurality of skeletons 301 and the same number of legs 302 as that of the skeletons 301. In the retracted state, the plurality of skeletons 301 are parallel and close to each other, and the first ends of adjacent skeletons 301 are hinged to each other. A middle frame 303 is provided at the first end of the outermost skeleton 301. The second end of each skeleton 301 is hinged to the corresponding leg 302 respectively.

[0049] The automatic unfolding and retracting unit 2 includes a lifting mechanism 201, a rotating mechanism 202 and a power control module 206. The lower end of the lifting mechanism 201 is connected to the base 1, and the upper end is connected to the rotating mechanism 202. The middle frame 303 is movably sleeved on the rotating mechanism 202. The power control module 206 is disposed on the upper end surface of the base 1 and is electrically connected to the lifting mechanism 201 and the rotating mechanism 202. The automatic unfolding and retracting unit 2 is used to lift or lower the main body frame 3 and drive the plurality of skeletons 301 to rotate and unfold or rotate and retract in an umbrella shape through the middle frame 303.

[0050] In the unfolded state, the tarpaulin is laid on the plurality of skeletons 301.

[0051] It should be noted that, as Figure 1 , Figure 2 shown, the lower end of the automatic unfolding and retracting unit 2 is preferably fixed on the upper end surface of the base 1 by welding or screw connection.

[0052] It should be noted that in Figure 6 , the left skeleton 301 is the outermost skeleton 301. Figure 10 It can be seen that a skeleton fixing seat 3031 is provided on one side of the middle frame 303. Figure 6 In Figure 6 , the outermost skeleton 301 is fixed on the skeleton fixing seat 3031 by screws.

[0053] It should be noted that preferably each skeleton 301 is hinged to the leg 302. It is also possible to adopt the method as Figure 4 shown, in which the spaced skeletons 301 are hinged to the legs 302, as long as sufficient supporting strength can be provided.

[0054] It should be noted that the power control module 206 includes a PLC (the acronym of Programmable Logic Controller, and the full Chinese name is Programmable Logic Controller) unit and a control button; the PLC unit can also be a circuit including at least one processor, or a circuit including at least one single-chip microcomputer, or a combination form of multiple circuits or chips, as long as the corresponding functions can be realized; it can be understood that for those skilled in the art, the control circuit can also be a common circuit composed of an amplifier, a comparator, a triode, a MIS tube, etc. to realize the corresponding functions in a pure hardware manner; the control button can be fixed outside the power control module 206, and the function of unfolding and folding the tent can be realized by personnel operation; the remote control method of the existing technology can also be used to control the unfolding and folding of the tent; it can be understood that for those skilled in the art, the control button can be in the form of common buttons, cables or wireless receivers, etc., and the corresponding functions can be realized.

[0055] It should be noted that the middle frame 303 has a hollow bottom structure and can be movably sleeved on the rotating mechanism 202 and driven by the rotating mechanism 202 to rotate.

[0056] It should be noted that the tarpaulin, preferably made of canvas material, has several hooks on the inner surface (preferably fixed by sewing method), which can cooperate with the buckles at several corresponding positions on the main frame 3 to fix the tarpaulin on the main frame 3.

[0057] In the specific implementation, the present utility model is provided with a base 1, which is used to support the automatic unfolding and folding unit 2 and the main frame 3 in the folded state, providing a folding platform for the folded tent, which is beneficial to the overall transportation and movement; the present utility model is provided with a main frame 3, which includes several skeletons 301 and a middle frame 303; when unfolding, all the skeletons 301 are unfolded in an umbrella shape driven by the middle frame 303, and when folded, all the skeletons 301 are close to each other; this structure can achieve a large unfolding and folding ratio (the ratio of the area after unfolding to the area after folding) and does not require too many manual connection operations, solving the problems that the volume of the large-span tent is large and occupies a lot of space after folding and the connection parts are easy to loosen at present; the present utility model is provided with an automatic unfolding and folding unit 2, which can lift or lower the main frame 3 and drive several of the skeletons 301 to rotate and unfold or rotate and fold in an umbrella shape through the middle frame 303; this structure can realize the automatic unfolding and folding of the large-span tent, solving the problems that the process of unfolding and folding the large-span tent at present is laborious and time-consuming.

[0058] In the embodiments provided by the present utility model, an inter-bone truss 304 is provided between the second ends of each of the skeletons 301 and the second ends of the adjacent skeletons 301; the inter-bone truss 304 is a folding structure, and the two ends are respectively hinged to the second ends of the adjacent skeletons 301, and is used to support two adjacent skeletons 301 in the unfolded state.

[0059] It should be noted that, as Figure 5 shown, the inter-bone truss 304 is preferably formed by hinging two connecting rods. In the retracted state, the inter-bone truss 304 folds inward and retracts between the two side skeletons 301; in the unfolded state, the two connecting rods of the inter-bone truss 304 unfold to form a straight connecting rod structure.

[0060] In specific implementation, the inter-bone truss 304 can play a role in connecting the adjacent two side skeletons 301; the two-end folding structure can play a role in stable support after unfolding, and reduce the occupied space after retracting.

[0061] In one embodiment, there are two main frames 3, namely a first main frame 311 and a second main frame 312; in the retracted state, the first main frame 311 and the second main frame 312 are retracted and arranged side by side; in the unfolded state, the skeletons 301 on both sides of the first main frame 311 and the second main frame 312 are correspondingly connected.

[0062] It should be noted that Figure 3 shows the structure of a single main frame 3, Figure 7 is the structure after a single main frame is unfolded, and an independent tent frame can be formed after unfolding; further, two main frames 3 can be arranged side by side, as Figure 1 , Figure 2 shown, an approximately circular tent frame (not shown in the figure) can be formed after unfolding, and the corresponding skeletons 301 between the two main frames 3 can be connected by common buckles.

[0063] In specific implementation, by adopting the structure of two main frames 3, a tent with a larger span and a larger accommodation space can be obtained.

[0064] In one embodiment, as Figure 8 , Figure 9As shown, first extension skeletons 305 are arranged on both sides of the first main body frame 311 and the second main body frame 312; both ends of each first extension skeleton 305 are connected to corresponding ends of the adjacent skeleton 301 through short awning trusses 306; the short awning trusses 306 are of a folding structure, and are respectively hinged to the first extension skeleton 305 and the adjacent skeleton 301 at both ends, and are used for supporting between the first extension skeleton 305 and the adjacent skeleton 301 in the unfolded state; in the retracted state, the 4 first extension skeletons 305 are correspondingly parallel and close to the skeletons 301 on both sides of the first main body frame 311 and the second main body frame 312; in the unfolded state, the first extension skeletons 305 on both sides of the first main body frame 311 are correspondingly connected to the first extension skeletons 305 on both sides of the second main body frame 312.

[0065] A leg 302 is hinged to one end of each first extension skeleton 305 away from the middle frame 303.

[0066] It should be noted that the short awning truss 306 has the same structure as the inter-bone truss 304. After retraction, the middle part thereof can be folded inwards to reduce the occupied space; after unfolding, it can play a role in connecting the skeleton 301 and the first extension skeleton 305; the first extension skeletons 305 on both sides of the two main body frames 3 can be connected through common buckles.

[0067] In specific implementation, adding first extension skeletons 305 on both sides of the two main body frames 3 can further increase the effective space of the tent.

[0068] In the embodiment provided by the present utility model, as Figure 1 and Figure 4 shown, second extension skeletons 307 are arranged on the outer sides of the 4 first extension skeletons 305; both ends of each second extension skeleton 307 are connected to corresponding ends of the adjacent first extension skeleton 305 through long awning trusses 308; the long awning trusses 308 are of a folding structure, and are respectively hinged to the second extension skeleton 307 and the adjacent first extension skeleton 305 at both ends, and are used for supporting between the second extension skeleton 307 and the adjacent first extension skeleton 305 in the unfolded state; in the retracted state, the 4 second extension skeletons 307 are correspondingly parallel and close to the first extension skeletons 305 on both sides of the first main body frame 311 and the second main body frame 312; in the unfolded state, the second extension skeletons 307 on both sides of the first main body frame 311 are correspondingly connected to the second extension skeletons 307 on both sides of the second main body frame 312.

[0069] It should be noted that the structure of the long awning truss 308 is the same as that of the short awning truss 306. After being folded up, the middle part can be folded inward to reduce the occupied space. After being unfolded, it can play the role of connecting the second expansion framework 307 and the first expansion framework 305. The second expansion frameworks 307 on both sides of the two main frameworks 3 can be connected by common latches.

[0070] In specific implementation, by adding second expansion frameworks 307 on both sides of the two main frameworks 3, the effective space of the tent can be further increased to realize a large-span tent structure.

[0071] In one embodiment, a connecting truss 309 is arranged on one side of the first main framework 311 or the second main framework 312. In the folded state, the connecting truss 309 is juxtaposed and close to the framework 301 of the first main framework 311 or the second main framework 312, and the first end is hingedly connected to the middle frame 303 of the first main framework 311 or the second main framework 312. In the unfolded state, the second end of the connecting truss 309 is detachably connected to the middle frame 303 of the second main framework 312 or the first main framework 311, so as to increase the connection strength between the first main framework 311 and the second main framework 312.

[0072] It should be noted that since the structures of the first main framework 311 and the second main framework 312 are basically the same and symmetrically arranged, the connecting truss 309 can be connected to either the first main framework 311 or the second main framework 312, which does not affect the unfolding and folding processes of the tent nor the use function of the tent.

[0073] It should be noted that a connecting truss fixing seat 3032 is arranged on one side of the middle frame 303, and is preferably fixedly connected by welding. The first end of the connecting truss 309 is hingedly connected to the connecting truss fixing seat 3032 and can rotate with the first end as the midpoint.

[0074] It should be noted that a limiting block (not shown in the figure, preferably fixed by welding) is arranged on the outer side of the first end of the connecting truss 309. When the connecting truss 309 rotates 90° outward relative to the middle frame 303, the limiting block abuts against the cylindrical surface of the middle frame 303 to prevent the connecting truss 309 from continuing to rotate relative to the middle frame 303. That is, during the unfolding process, the connecting truss 309 should be rotated 90° outward to the limiting position in advance, and then the middle frame 303 rotates driven by the rotating mechanism 202 and drives the connecting truss 309 and other frameworks 301 to rotate to the unfolded position.

[0075] It should be noted that the second end of the connecting truss 309 can be fixed to the opposite middle frame 303 by means of screws or buckles after being unfolded.

[0076] In specific implementation, when the connecting truss 309 is in the deployed state, it connects the middle frames 303 of the first main frame 311 and the second main frame 312, which can effectively increase the connection strength between the two main frames 3 and make the overall tent structure more stable.

[0077] In the implementation mode provided by the present utility model, the automatic unfolding and folding unit 2 further includes a first horizontal telescopic mechanism 203 and a second horizontal telescopic mechanism 204; the first horizontal telescopic mechanism 203 and the second horizontal telescopic mechanism 204 have the same structure, are arranged in parallel and in opposite directions, the lower end surfaces of both are connected to the top end of the lifting mechanism 201, and the rotating mechanisms 202 are arranged on the upper end surfaces of both; the first horizontal telescopic mechanism 203 and the second horizontal telescopic mechanism 204 are both electrically connected to the power control module 206 and are used to move the first main frame 311 and the second main frame 312 away from or close to each other;

[0078] The first horizontal telescopic mechanism 203 and the second horizontal telescopic mechanism 204 both include a horizontal telescopic driving part and a horizontal telescopic transmission part; for the horizontal telescopic driving part, the power output end is connected to the power input end of the horizontal telescopic transmission part and is electrically connected to the power control module 206; the horizontal telescopic transmission part is a multi-stage telescopic structure;

[0079] The lifting mechanism 201 includes a lifting driving part and a lifting transmission part; for the lifting driving part, the power output end is connected to the power input end of the lifting transmission part and is electrically connected to the power control module 206; the lifting transmission part is a multi-stage telescopic structure and is used to lift or lower the first main frame 311 and the second main frame 312 under the drive of the lifting driving part;

[0080] The rotating mechanism 202 includes a rotating driving part and a cone barrel; for the rotating driving part, the power output end is connected to the cone barrel and is electrically connected to the power control module 206; the cone barrel is movably sleeved and connected to the middle frame 303 and is used to drive the middle frame 303 to rotate in the positive and negative directions.

[0081] It should be noted that the first horizontal telescopic mechanism 203 and the second horizontal telescopic mechanism 204 are preferably fixed to each other by welding, and the lower end surfaces of both are preferably connected to the top end of the lifting mechanism 201 by welding or screws; the relatively far ends of the first horizontal telescopic mechanism 203 and the second horizontal telescopic mechanism 204 are preferably fixed to their respective rotating mechanisms 202 by welding or screws.

[0082] It should be noted that as Figure 11As shown, since the first horizontal telescopic mechanism 203 and the second horizontal telescopic mechanism 204 are arranged side by side, the connection line between the two rotating mechanisms 202 cannot be parallel to the first horizontal telescopic mechanism 203 and the second horizontal telescopic mechanism 204; for this reason, one L-shaped adapter block 207 is provided at one end of any horizontal telescopic mechanism, and one rotating mechanism 202 is fixed on the adapter block, and the rotating mechanism 202 can be offset to one side; so as to make the connection line of the two rotating mechanisms 202 parallel to the first horizontal telescopic mechanism 203 and the second horizontal telescopic mechanism 204.

[0083] It should be noted that the horizontal telescopic drive part and the lifting drive part are both preferably linear motors; the horizontal telescopic transmission part and the lifting transmission part have similar structures, and both are preferably the existing three-stage electric cylinder structure, and a multi-stage screw-nut transmission mechanism is arranged inside; for those skilled in the art, a similar transmission mechanism can also be used, such as a multi-stage hydraulic cylinder structure, etc., as long as the structure used can achieve the same function.

[0084] It should be noted that the rotation drive part is preferably a stepping motor; the conical barrel is driven to rotate by the output end of the stepping motor, and its outer surface has the same shape as the hollow inner surface of the middle frame 303 (the present invention preferably adopts a multi-faceted structure), and they can cooperate with each other and transmit power.

[0085] In specific implementation, by setting the lifting mechanism 201, the first horizontal telescopic mechanism 203, the second horizontal telescopic mechanism 204 and the rotating mechanism 202, the automatic unfolding and folding of the tent can be realized, saving a lot of time and manpower, and there is no need to manually install and connect the fixed parts, reducing the probability of connection loosening.

[0086] In one embodiment, a telescopic fixing part 310 is arranged between each of the plurality of said skeletons 301 and the corresponding articulated leg 302; the telescopic fixing part 310 is a telescopic structure, one end is articulated to the skeleton 301, the other end is articulated to the leg 302, and a fixing part for restricting its telescopic length is arranged in the middle.

[0087] It should be noted that the telescopic fixing part 310 preferably has two telescopic connecting rods, one end of one connecting rod extends into the interior of the other connecting rod; a fixing part is arranged between the two connecting rods; the fixing part preferably adopts a common buckle method, and the two connecting rods can be fixed at corresponding lengths; when in the unfolded state, after the leg 302 is completely perpendicular to the ground under the action of gravity, the fixing part is locked, and the two connecting rods can be fixed at corresponding lengths; when in the folded state, after the leg 302 is retracted, the fixing part is locked to prevent the leg 302 from unfolding by itself.

[0088] In specific implementation, by setting the telescopic fixing part 310, the leg 302 can be stably fixed at the corresponding position to prevent the leg 302 from swinging randomly.

[0089] In the embodiment provided by the present utility model, a support frame 101 is disposed on the upper end surface of one end of the base 1 away from the automatic unfolding and folding unit 2; in the folded state, one end of the main body frame 3 away from the automatic unfolding and folding unit 2 is movably connected to the upper end of the support frame 101.

[0090] It should be noted that the support frame 101 is preferably fixed to the upper end surface of the bottom plate 102 by welding.

[0091] It should be noted that a distribution box 205 electrically connected to the automatic unfolding and folding unit 2 and the power control module 206 is further disposed at one end of the base 1 close to the automatic unfolding and folding unit 2; the distribution box 205 provides stable electric energy for the automatic unfolding and folding unit 2.

[0092] In specific implementation, the support columns can play a role in supporting the main body frame 3, making the overall structure more stable in the folded state.

[0093] A method for unfolding and folding a large-span automatic unfolding and folding tent, the unfolding steps of the tent include:

[0094] S1. Rotate the connecting truss 309 outward by 90° relative to the middle frame 303; the power control module 206 sends a start command to the two rotation driving parts; the two rotation driving parts drive the corresponding conical barrels and the middle frame 303 to rotate, and the rotation directions are opposite;

[0095] S2. The middle frame 303 of the first main body frame 311 or the second main body frame 312 drives the connecting truss 309 to rotate and unfold outward; the two middle frames 303 respectively drive the outermost skeleton 301 on each side to rotate and unfold to both sides; the two outermost skeletons 301 drive the adjacent articulated skeletons 301 to rotate and unfold to both sides, and sequentially drive the other inner skeletons 301 to rotate and unfold to both sides; the inter-bone trusses 304 between the adjacent skeletons 301 are sequentially unfolded to form a straight link structure; after the two middle frames 303 both rotate 180°, all the skeletons 301 are completely rotated and unfolded; the power control module 206 sends a stop command to the two rotation driving parts; the two conical barrels and the two middle frames 303 stop rotating;

[0096] S3. The power control module 206 sends start commands to the two horizontal telescopic drive parts respectively; the two horizontal telescopic transmission parts extend out in opposite directions respectively, and drive the first main frame 311 and the second main frame 312 to move away from each other through the two rotary mechanisms 202; after the two horizontal telescopic transmission parts are fully extended, the power control module 206 sends stop commands to the two horizontal telescopic drive parts respectively; the first main frame 311 and the second main frame 312 stop moving away from each other.

[0097] S4. Connect one end of the connecting truss 309 far from the hinge connecting the middle frame 303 to another middle frame 303; deploy the first extension skeletons 305 of the first main frame 311 and the second main frame 312, and the short awning truss 306 is deployed to form a straight link structure; deploy the second extension skeletons 307 of the first main frame 311 and the second main frame 312; the long awning truss 308 forms a straight link structure; fixedly connect the corresponding second extension skeletons 307.

[0098] S5. The power control module 206 sends a start command to the lifting drive part; the lifting drive part drives the lifting transmission part to extend upward and lift the first main frame 311 and the second main frame 312; after the lifting transmission part is fully extended, the power control module 206 sends a stop command to the lifting drive part; the first main frame 311 and the second main frame 312 stop rising.

[0099] S6. Unlock the fixed parts of each leg 302, and the telescopic fixing part 310 elongates; each leg 302 swings to a vertical position with the ground under the action of gravity; lock each fixed part.

[0100] S7. The power control module 206 sends a reverse start command to the lifting drive part; the lifting drive part drives the lifting transmission part to retract downward; after the lifting transmission part is completely retracted, the power control module 206 sends a stop command to the lifting drive part.

[0101] S8. The power control module 206 sends reverse start commands to the two horizontal telescopic drive parts respectively; the two horizontal telescopic transmission parts correspondingly drive the two rotary mechanisms 202 to retract inward; after the two horizontal telescopic transmission parts are completely retracted, the power control module 206 sends stop commands to the two horizontal telescopic drive parts.

[0102] S9. Withdraw the base 1 and the automatic deployment and retraction unit 2; lay the tarpaulin on the first main frame 311 and the second main frame 312 to complete the deployment of the tent.

[0103] S10. The steps of folding the tent are opposite to the steps of unfolding the tent.

[0104] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0105] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A large-span automatic unfolding and retracting tent, characterized in that, It includes a base, an automatic unfolding and retracting unit, a main frame and a tarpaulin; The tent has an unfolded state and a folded state; The base is arranged at the bottom of the tent, and the automatic unfolding and retracting unit is arranged at one end of the upper end surface; in the folded state, the base and the automatic unfolding and retracting unit jointly support the main frame; The main frame includes a plurality of frames and legs of the same number as the frames; in the folded state, the plurality of frames are parallel to each other and close to each other, and the first ends of adjacent frames are hingedly connected to each other; the first end of the outermost frame is provided with a middle frame; the second end of each frame is hingedly connected to the legs one by one; The automatic unfolding and retracting unit comprises a lifting mechanism, a rotating mechanism and a power control module; the lifting mechanism is connected to the base at the lower end and connected to the rotating mechanism at the upper end; the middle frame is movably mounted on the rotating mechanism; the power control module is arranged on the upper end surface of the base and is electrically connected to the lifting mechanism and the rotating mechanism; the automatic unfolding and retracting unit is used to lift or lower the main frame and drive the plurality of skeletons to rotate and unfold or rotate and retract in an umbrella shape through the middle frame; In the unfolded state, the tarpaulin is laid on a plurality of the frames.

2. The large-span automatic unfolding and folding tent according to claim 1, characterized in that, An inter-bone truss is arranged between the second end of each skeleton and the second end of the adjacent skeleton; the inter-bone truss is a folding structure, and its two ends are respectively hingedly connected to the second ends of the adjacent skeletons for supporting the two adjacent skeletons in the unfolded state.

3. The large-span automatic unfolding and retracting tent according to claim 2, characterized in that, There are two main frames, namely the first main frame and the second main frame; in the folded state, the first main frame and the second main frame are folded and arranged side by side; in the expanded state, the skeletons on both sides of the first main frame and the second main frame are connected correspondingly.

4. The large-span automatic unfolding and retracting tent according to claim 3, characterized in that, First extension frames are arranged on both sides of the first main frame and the second main frame; both ends of the first extension frame are connected to the corresponding two ends of the adjacent frames through short canopy trusses; the short canopy trusses are folding structures, and both ends are hingedly connected to the first extension frame and the adjacent frames respectively, and are used for supporting the first extension frame and the adjacent frames in the unfolded state; in the folded state, the four first extension frames are correspondingly parallel to the frames on both sides of the first main frame and the second main frame; in the unfolded state, the first extension frames on both sides of the first main frame are correspondingly connected to the first extension frames on both sides of the second main frame; One end of each of the first extended frames away from the middle frame is hingedly connected to the supporting leg.

5. The large-span automatic unfolding and retracting tent according to claim 4, characterized in that, A second expansion frame is arranged on the outer side of each of the four first expansion frames; both ends of the second expansion frame are connected to the corresponding ends of the adjacent first expansion frames through a long tent truss; the long tent truss is a folding structure, and both ends are hingedly connected to the second expansion frame and the adjacent first expansion frame respectively, and is used for supporting the second expansion frame and the adjacent first expansion frame in the expanded state; in the folded state, the four second expansion frames are correspondingly parallel to the first expansion frames on both sides of the first main frame and the second main frame; in the expanded state, the second expansion frames on both sides of the first main frame are correspondingly connected to the second expansion frames on both sides of the second main frame.

6. The large-span automatic unfolding and retracting tent according to claim 5, wherein, A connecting truss is arranged on one side of the first main frame or the second main frame; in the folded state, the connecting truss is parallel to the skeleton of the first main frame or the second main frame, and the first end is hingedly connected to the middle frame of the first main frame or the second main frame; in the unfolded state, the second end of the connecting truss is detachably connected to the middle frame of the second main frame or the first main frame, so as to increase the connection strength between the first main frame and the second main frame.

7. The large-span automatic unfolding and retracting tent according to claim 3, characterized in that, The automatic extension and retraction unit further comprises a first horizontal telescopic mechanism and a second horizontal telescopic mechanism; the first horizontal telescopic mechanism and the second horizontal telescopic mechanism have the same structure, are arranged parallel to each other in opposite directions, the lower end surfaces are connected to the top of the lifting mechanism, and the upper end surfaces are provided with the rotating mechanism; the first horizontal telescopic mechanism and the second horizontal telescopic mechanism are both electrically connected to the power control module, and are used to move the first main frame and the second main frame away from or closer to each other; The first horizontal telescopic mechanism and the second horizontal telescopic mechanism both include a horizontal telescopic driving part and a horizontal telescopic transmission part; the power output end of the horizontal telescopic driving part is connected to the power input end of the horizontal telescopic transmission part and is electrically connected to the power control module; the horizontal telescopic transmission part is a multi-stage telescopic structure; The lifting mechanism comprises a lifting driving part and a lifting transmission part; The lifting drive unit has a power output end connected to the power input end of the lifting transmission unit and is electrically connected to the power control module; the lifting transmission unit is a multi-stage telescopic structure, which is used to lift or lower the first main frame and the second main frame under the drive of the lifting drive unit; The rotating mechanism includes a rotating drive unit and a cone barrel; the rotating drive unit has a power output end connected to the cone barrel and electrically connected to the power control module; the cone barrel is connected to the middle frame movable set to drive the middle frame to rotate in forward and reverse directions.

8. The large-span automatic unfolding and retracting tent according to claim 7, wherein, A telescopic fixing part is arranged between several of the skeletons and the corresponding hinged legs; the telescopic fixing part is a telescopic structure, one end of which is hingedly connected to the skeleton and the other end is hingedly connected to the leg, and a fixing part which can limit its telescopic length is arranged in the middle.

9. The large-span automatic unfolding and retracting tent according to claim 1, characterized in that, A support frame is disposed on the upper end surface of one end of the base away from the automatic unfolding and folding unit; in the folded state, one end of the main frame away from the automatic unfolding and folding unit is movably connected to the upper end of the support frame.

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