Support frame and tent

Abstract

The invention provides a supporting frame and a tent. The supporting frame comprises a first door frame, a second door frame and a folding assembly. The first portal frame comprises at least two first supporting rods, and the second portal frame comprises at least two second supporting rods; the folding assembly comprises a first telescopic rod and a second telescopic rod; the first telescopic rod and the second telescopic rod are crossed and are coplanar with the first supporting rod; the plane where the first telescopic rod, the second telescopic rod and the first supporting rod are located jointly is a supporting face. The first connecting end of the first supporting rod is rotatably connected with one end of the first telescopic rod, and the second connecting end of the first supporting rod is rotatably connected with one end of the second telescopic rod; the third connecting end of the second supporting rod located on the supporting face is rotationally connected with the other end of the first telescopic rod, and the fourth connecting end of the second supporting rod located on the supporting face is rotationally connected with the other end of the second telescopic rod. The supporting frame is connected with the first door frame and the second door frame through the crossed folding assemblies, and the stability of the supporting frame is improved.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical structures, and in particular to a support frame and a tent. Background Art

[0002] As an important load-bearing structure, the support frame is widely used in various scenarios, such as tent support, billboard fixing and stage equipment bearing. In the fields of emergency rescue and field medical treatment, the support frame plays a key supporting role in the tent structure, which determines the tent's construction efficiency, stability and wind resistance. However, the existing support frame still has many technical bottlenecks in practical applications, especially the performance is insufficient in complex environments.

[0003] At present, most frame tents on the market use a foldable support frame structure to improve portability and ease of use. Taking the tent frame disclosed in patent number: CN202211130595.3 as an example, this type of support frame used to support the tent cloth to form a tent is usually designed based on a scissor assembly, and two door frames are connected by a scissor assembly. The first connection end of the scissor assembly is hinged to the door frame, and the second connection end is slidably connected to the door frame. During the folding and unfolding process, the sliding connection end of the scissor assembly slides on the door frame, causing the distance between the hinge point and the sliding point on the same door frame to change. Specifically, during the unfolding process, as the distance between the door frames increases, the distance between the first connection end and the second connection end on the door frame gradually decreases, resulting in a reduction in the support range of the scissor assembly on the door frame, thereby reducing the overall stability of the support frame. And due to the distance limit, the pitch of the tent frame is limited, and the number of door frames needs to be increased to achieve the same length of the tent frame. In addition, the unfolded scissor structure is prone to deformation when subjected to external force, especially in strong winds or heavy load environments, and it is difficult to provide sufficient support.

[0004] The existing support frame is insufficient in terms of structural stability and wind resistance, which affects the safety of tents in complex environments. At the same time, the traditional unlocking structure is cumbersome, time-consuming and laborious to operate during the tent construction and dismantling process, and requires high operating skills from the user, making it difficult to meet the needs of rapid deployment in emergency rescue scenarios. Although some technologies have been improved through lightweight materials and modular design, they have not fundamentally solved problems such as poor stability and complex operation.

[0005] Therefore, there is an urgent need to develop a new type of frame support structure to improve the stability, portability and ease of operation of the tent support system by optimizing the design of connecting components and folding mechanisms, so as to meet the actual needs of rapid deployment and reliable load-bearing in special scenarios such as emergency rescue and field medical treatment. Summary of the invention

[0006] The purpose of the present application is to provide a support frame and a tent, which respectively connect the first door frame and the second door frame through folding components that cross each other. Based on the retractability of the first telescopic rod and the second telescopic rod in the folding component, the stability of the support frame can be significantly improved. In addition, when the support frame is used as a tent frame, the pitch of the tent frame can be increased. That is, when the length of the tent frame is certain, the number of door frames required is less, which optimizes the design and reduces the manufacturing cost. At the same time, it performs well in terms of lightweight and storage and transportation volume, and is particularly suitable for scenes that require high portability such as mobile hospitals. In addition, by improving the uniformity of the cross-distribution of the folding components, the uniformity of the tent cloth support is further improved, and the overall snow load resistance of the tent is enhanced; in addition, since the support frame does not need to be locked or unlocked, the operation steps can be simplified and the convenience of storage and unfolding can be improved. The present application has achieved a comprehensive improvement in the stability, convenience and economy of the support frame, providing an efficient and reliable solution for the support structure.

[0007] In the first aspect, the present application provides a support frame, including a first door frame, a second door frame and a folding assembly; the first door frame includes at least two first support rods, and the second door frame includes at least two second support rods; the folding assembly includes a first telescopic rod and a second telescopic rod; the first telescopic rod crosses the second telescopic rod and is coplanar with the first support rod; the plane where the first telescopic rod, the second telescopic rod and the first support rod are located is a support surface; the first connecting end of the first support rod is rotatably connected to one end of the first telescopic rod, and the second connecting end of the first support rod is rotatably connected to one end of the second telescopic rod; the third connecting end of the second support rod located on the support surface is rotatably connected to the other end of the first telescopic rod, and the fourth connecting end of the second support rod located on the support surface is rotatably connected to the other end of the second telescopic rod.

[0008] In the above-mentioned support frame, since the crossed first telescopic rod and the second telescopic rod in the folding assembly can be extended and retracted, during the process of folding the support frame (that is, the process of the first door frame and the second door frame approaching each other), the first telescopic rod and the second telescopic rod only need to shorten their own lengths accordingly, without any connection end of the folding assembly sliding on the first support rod or the second support rod. Therefore, the distance between the two connection points between the folding assembly and the first support rod and the distance between the two connection points between the folding assembly and the second support rod will not be changed. Accordingly, the situation that the supporting range of the folding assembly on the door frame will be reduced as the degree of expansion of the support frame increases, resulting in lower stability of the support frame will not occur, thereby improving the stability of the support frame.

[0009] In combination with the first aspect, optionally, the first telescopic rod and the second telescopic rod are rotatably connected; wherein the rotational connection is located at the intersection of the first telescopic rod and the second telescopic rod.

[0010] The above-mentioned support frame is connected by rotationally connecting the first telescopic rod and the second telescopic rod at their intersection. When the lengths of the first telescopic rod and the second telescopic rod remain unchanged, the first telescopic rod, the first telescopic rod, the first support rod and the second support rod form two fixed triangles. Since the triangle has stability, any two of the first telescopic rod, the first telescopic rod, the first support rod and the second support rod will not move relative to each other. That is to say, the stability of the support frame is further improved. In addition, in the process of the support frame being deployed (the process of the first portal frame and the second portal frame moving away from each other), the relative movement between the first portal frame and the second portal frame is constrained to be a linear movement.

[0011] In combination with the first aspect, optionally, the first telescopic rod includes a first first section rod, a first middle section rod and a first tail section rod; one end of the first middle section rod is telescopically connected to the first first section rod, and the other end of the first middle section rod is telescopically connected to the first tail section rod; the second telescopic rod includes a second first section rod, a second middle section rod and a second tail section rod; one end of the second middle section rod is telescopically connected to the second first section rod, and the other end of the second middle section rod is telescopically connected to the second tail section rod; the first middle section rod and the second middle section rod are rotatably connected.

[0012] The support frame forms the first telescopic rod and the second telescopic rod by telescopically connecting multiple sections of rods, which not only realizes the telescopic nature of the first telescopic rod and the second telescopic rod, but also simplifies the structures of the first telescopic rod and the second telescopic rod.

[0013] In combination with the first aspect, optionally, the first telescopic rod also includes a first limiting mechanism and a second limiting mechanism; the first limiting mechanism is configured to limit the telescopic movement between the first middle section rod and the first first section rod when the first middle section rod and the first first section rod are extended to the longest state; the second limiting mechanism is configured to limit the telescopic movement between the first middle section rod and the first tail section rod when the first middle section rod and the first tail section rod are extended to the longest state; the second telescopic rod also includes a third limiting mechanism and a fourth limiting mechanism; the third limiting mechanism is configured to limit the telescopic movement between the second middle section rod and the second first section rod when the second middle section rod and the second first section rod are extended to the longest state; the fourth limiting mechanism is configured to limit the telescopic movement between the second middle section rod and the second tail section rod when the second middle section rod and the second tail section rod are extended to the longest state.

[0014] The support frame is provided with a first limiting mechanism and a second limiting mechanism on the first telescopic rod, and a third limiting mechanism and a fourth limiting mechanism on the second telescopic rod, so as to respectively lock the first telescopic rod and the second telescopic rod in the longest state, thereby further improving the stability of the support frame in the unfolded state.

[0015] In combination with the first aspect, optionally, the first connection end and the second connection end are respectively located at two ends of the first support rod; the third connection end and the fourth connection end are respectively located at two ends of the second support rod.

[0016] The support frame, by defining the first connection end and the second connection end as the two ends of the first support rod, and by defining the third connection end and the fourth connection end as the two ends of the second support rod, maximizes the supporting range of the folding member on the door frame, thereby maximizing the stability of the support frame in the unfolded state.

[0017] In combination with the first aspect, optionally, the first telescopic rod and the second telescopic rod respectively have a retracted state in which they are retracted to their shortest state; the length of the first telescopic rod in the retracted state does not exceed the distance between the first connecting end and the second connecting end; the length of the first telescopic rod in the retracted state does not exceed the distance between the third connecting end and the fourth connecting end; the length of the second telescopic rod in the retracted state does not exceed the distance between the first connecting end and the second connecting end; the length of the second telescopic rod in the retracted state does not exceed the distance between the third connecting end and the fourth connecting end.

[0018] The support frame, by limiting the distance relationship between the first telescopic rod and the second telescopic rod and the first connecting end and the second connecting end and the distance relationship between the third connecting end and the fourth connecting end in the contracted state, enables the first door frame and the second door frame to be as close as possible, thereby allowing the support frame to be folded to the maximum extent.

[0019] In combination with the first aspect, optionally, a first connecting portion is provided on at least one of the first connecting end and the fourth connecting end; the first connecting portion extends along the supporting surface and is located between the first support rod and the second support rod; at least one of the second connecting end and the third connecting end is provided with a second connecting portion; the second connecting portion extends along the supporting surface and is located between the first support rod and the second support rod.

[0020] The above-mentioned support frame, by respectively arranging the first connecting part and the second connecting part on the first telescopic rod and / or the second telescopic rod, when the first door frame and the second door frame are as close as possible, since the first connecting part and the second connecting part are located between the first support rod and the second support rod, the zero-distance contact between the first support rod and the second support rod is limited, that is, when the support frame is in a folded state, there is still a gap between the first support rod and the second support rod, thereby preventing the operator's hands from being pinched by the first support rod and the second support rod during the process of folding the support frame.

[0021] In combination with the first aspect, optionally, it further includes a connecting rod; one end of the connecting rod is detachably connected to the first door frame, and the other end of the connecting rod is detachably connected to the second door frame.

[0022] The above-mentioned support frame further ensures the stability of the distance between the first door frame and the second door frame in the unfolded state by arranging a detachable connecting rod between the first door frame and the second door frame, which correspondingly further improves the stability of the support frame in the unfolded state.

[0023] In combination with the first aspect, optionally, the first door frame also includes a first rotating connection mechanism; the two connecting ends of the first rotating connection mechanism are respectively connected to the ends of the two first support rods, and are configured to achieve folding and unfolding between at least two of the first support rods; the second door frame also includes a second rotating connection mechanism; the two connecting ends of the second rotating connection mechanism are respectively connected to the ends of the two second support rods, and are configured to achieve folding and unfolding between at least two of the second support rods.

[0024] The support frame realizes the folding and unfolding of the two first support rods on the first door frame through the first rotating connection mechanism, and realizes the folding and unfolding of the two second support rods on the second door frame through the second rotating connection mechanism, thereby realizing the foldability of the first door frame and the second door frame themselves. In the process of folding the support frame, in addition to bringing the first door frame and the second door frame closer to each other through the folding assembly, the first door frame and the second door frame can also be folded through their own foldability, thereby further reducing the space occupied by the support frame in the folded state.

[0025] In a second aspect, the present application provides a tent, comprising a tent cloth and a support frame as described.

[0026] The above tent has the same beneficial effects as the first aspect, which will not be described in detail here.

[0027] In summary, the support frame and tent provided by the present application are connected to the first door frame and the second door frame respectively through the folding assembly after crossing each other. Since the first telescopic rod and the second telescopic rod in the folding assembly can be telescopic, in the process of the first door frame and the second door frame approaching each other, the first telescopic rod and the second telescopic rod only need to shorten their own lengths accordingly, without any connection end of the folding assembly sliding on the first support rod or the second support rod, so that the distance between the two connection points between the folding assembly and the first support rod and the distance between the two connection points between the folding assembly and the second support rod will not be changed. Correspondingly, the situation that the support frame will not have a lower stability due to the reduction of the supporting range of the folding assembly on the door frame as the degree of expansion increases, thereby improving the stability of the support frame. By rotating the first telescopic rod and the second telescopic rod at their intersection, when the lengths of the first telescopic rod and the second telescopic rod remain unchanged, the first telescopic rod, the first telescopic rod, the first support rod and the second support rod form two fixed triangles. So that any two of the first telescopic rod, the first telescopic rod, the first support rod and the second support rod will not move relative to each other. That is to further improve the stability of the support frame. By defining the first connection end and the second connection end as the two ends of the first support rod, and by defining the third connection end and the fourth connection end as the two ends of the second support rod, the supporting range of the folding member on the door frame is maximized, thereby maximizing the stability of the support frame in the unfolded state. By respectively arranging the first connection part and the second connection part on the first telescopic rod and / or the second telescopic rod, the operator's hands are prevented from being pinched by the first support rod and the second support rod during the process of operating the support frame to fold. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A first stereoscopic view of a support frame provided in an embodiment of the present application;

[0030] Figure 2 A partial stereoscopic diagram of the connection between the door frame and the folding assembly in the support frame provided in the embodiment of the present application;

[0031] Figure 3 for Figure 1 A partial enlarged view of the middle A;

[0032] Figure 4 for Figure 1A partial enlarged view of point B in the middle;

[0033] Figure 5 for Figure 1 A partial enlarged view of point C in the middle;

[0034] Figure 6 for Figure 1 A partial enlarged view of point D in the middle;

[0035] Figure 7 A second stereoscopic view of the support frame provided in the embodiment of the present application;

[0036] Figure 8 A third stereoscopic view of the support frame provided in an embodiment of the present application.

[0037] Icons: 100, support frame; 110, first door frame; 111, first support rod; 1111, first connecting end; 1112, second connecting end; 1113, first connecting part; 112, first rotating connecting mechanism; 120, second door frame; 121, second support rod; 1211, third connecting end; 1212, fourth connecting end; 1213, second connecting part; 122, second rotating connecting mechanism; 130, folding assembly; 131, first telescopic rod; 1311, first first section rod; 1312, first middle section rod; 1313, first tail section rod; 1314, first limiting mechanism; 1315, second limiting mechanism; 132, second telescopic rod; 1321, second first section rod; 1322, second middle section rod; 1323, second tail section rod; 1324, third limiting mechanism; 1325, fourth limiting mechanism; 140, connecting rod. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] Please refer to Figure 1 , Figure 1 1 is a first stereogram of the support frame 100 provided in the embodiment of the present application. The support frame 100 provided in the embodiment of the present application may include a first door frame 110, a second door frame 120 and a folding assembly 130. The first door frame 110 may include at least two first support rods 111, and the second door frame 120 may include at least two second support rods 121. The folding assembly 130 may include a first telescopic rod 131 and a second telescopic rod 132. The first telescopic rod 131 may intersect with the second telescopic rod 132 and may be coplanar with the first support rod 111. The plane on which the first telescopic rod 131, the second telescopic rod 132 and the first support rod 111 are located may be a supporting surface. The first connecting end 1111 of the first support rod 111 may be rotatably connected to one end of the first telescopic rod 131, and the second connecting end 1112 of the first support rod 111 may be rotatably connected to one end of the second telescopic rod 132. The third connection end 1211 of the second support rod 121 located on the support surface can be rotatably connected to the other end of the first telescopic rod 131, and the fourth connection end 1212 of the second support rod 121 located on the support surface can be rotatably connected to the other end of the second telescopic rod 132.

[0045] The first door frame 110 and the second door frame 120 can be frames similar to the shape of door frames. The two door frames maintain a certain distance and are connected by connecting components such as scissor components or the folding components 130 described in the embodiments of the present application, thereby forming a support frame 100 or a part of a support frame 100 that can be used to support tent cloth, billboards or stage lighting.

[0046] It should be understood that the support frame 100 provided in the embodiment of the present application may also include a third door frame, a fourth door frame, and a fifth door frame, etc. Those skilled in the art may determine the number of door frames according to actual needs. Furthermore, the first door frame 110 and the second door frame 120 may be connected by one folding assembly 130 or by multiple folding assemblies 130.

[0047] The first telescopic rod 131 may be a rod formed by at least two rods being inserted together. The second telescopic rod 132 may also be a rod formed by at least two rods being inserted together.

[0048] Since the first telescopic rod 131, the second telescopic rod 132, and the first support rod 111 are coplanar, the rotation axis of any two of them that are rotatably connected is usually perpendicular to the support surface. Correspondingly, the second support rod 121 connected to the first telescopic rod 131 and the second telescopic rod 132 is also located on the support surface. Then the rotation axis of the first telescopic rod 131 and the second telescopic rod 132 that are rotatably connected to the second support rod 121 are usually also perpendicular to the support surface. In order to ensure that the first telescopic rod 131, the second telescopic rod 132, the first support rod 111, and the second support rod 121 remain coplanar, the rotation connection between them can be hinged to limit their rotation axis to be perpendicular to the support surface. It is also possible to ensure that the first telescopic rod 131, the second telescopic rod 132, the first support rod 111, and the second support rod 121 remain coplanar by passing a rotating pin through the intersection of the first telescopic rod 131 and the second telescopic rod 132. Among them, the length direction of the rotating pin is perpendicular to the support surface.

[0049] In the above implementation process, since the crossed first telescopic rod 131 and second telescopic rod 132 in the folding assembly 130 can be extended and retracted, in the process of accommodating the support frame 100 (that is, the process of the first door frame 110 and the second door frame 120 approaching each other), the first telescopic rod 131 and the second telescopic rod 132 only need to shorten their own lengths accordingly, without any connection end of the folding assembly 130 sliding on the first support rod 111 or the second support rod 121. Therefore, the distance between the two connection points between the folding assembly 130 and the first support rod 111 and the distance between the two connection points between the folding assembly 130 and the second support rod 121 will not be changed. Accordingly, the situation that the supporting range of the folding assembly 130 on the door frame will be reduced as the degree of expansion of the support frame 100 increases, resulting in a lower stability of the support frame 100 will not occur, thereby improving the stability of the support frame 100.

[0050] Please refer to Figure 2 , Figure 2 1 is a partial stereogram of the connection between the door frame and the folding assembly 130 in the support frame 100 provided in the embodiment of the present application. In some optional embodiments, the first telescopic rod 131 can be rotatably connected to the second telescopic rod 132. The rotation connection can be located at the intersection of the first telescopic rod 131 and the second telescopic rod 132.

[0051] As mentioned above, the rotation connection at the intersection of the first telescopic rod 131 and the second telescopic rod 132 can be achieved by a rotation pin passing through the two. Of course, those skilled in the art can also adopt other methods in the prior art in the field to achieve it according to actual application requirements, for example: a rotation pin protruding toward the second telescopic rod 132 is provided on the first telescopic rod 131, and a pin hole adapted to the rotation pin is provided at a corresponding position of the second telescopic rod 132.

[0052] In the above implementation process, by rotating the first telescopic rod 131 and the second telescopic rod 132 at their intersection, when the lengths of the first telescopic rod 131 and the second telescopic rod 132 remain unchanged, the first telescopic rod 131, the first telescopic rod 131, the first support rod 111 and the second support rod 121 form two fixed triangles. Since the triangle has stability, any two of the first telescopic rod 131, the first support rod 111 and the second support rod 121 will not move relative to each other. That is, the stability of the support frame 100 is further improved. In addition, it is also realized that in the process of the support frame 100 being unfolded (the process of the first door frame 110 and the second door frame 120 moving away from each other), the relative movement between the first door frame 110 and the second door frame 120 is constrained to be a linear movement.

[0053] Please continue to refer to Figure 2In some optional embodiments, the first telescopic rod 131 may include a first first section rod 1311, a first middle section rod 1312, and a first tail section rod 1313. One end of the first middle section rod 1312 may be telescopically connected to the first first section rod 1311, and the other end of the first middle section rod 1312 may be telescopically connected to the first tail section rod 1313. The second telescopic rod 132 may include a second first section rod 1321, a second middle section rod 1322, and a second tail section rod 1323. One end of the second middle section rod 1322 may be telescopically connected to the second first section rod 1321, and the other end of the second middle section rod 1322 may be telescopically connected to the second tail section rod 1323. The first middle section rod 1312 may be rotatably connected to the second middle section rod 1322.

[0054] The first first section rod 1311 and the first tail section rod 1313 may be inner sleeve rods, respectively, and the first middle section rod 1312 may be outer sleeve rods, and the structure of the first telescopic rod 131 may be that the two ends of the first middle section rod 1312 are respectively sleeved on the first first section rod 1311 and the first tail section rod 1313. On the contrary, the first first section rod 1311 and the first tail section rod 1313 may be outer sleeve rods, respectively, and the first middle section rod 1312 may be inner sleeve rods, and the structure of the first telescopic rod 131 may be that the first first section rod 1311 and the first tail section rod 1313 are respectively sleeved on the two ends of the first middle section rod 1312. Furthermore, the structure of the first telescopic rod 131 may also be that the first first section rod 1311 is sleeved on one end of the first middle section rod 1312, and the other end of the first middle section rod 1312 is sleeved on the first tail section rod 1313; or the opposite sleeve relationship.

[0055] The first middle section rod 1312 may be a rod whose length cannot be adjusted, or a telescopic rod formed by multiple sections of rods through a connection relationship similar to that described above. In other words, when the first middle section rod 1312 is a rod whose length cannot be adjusted, the first telescopic rod 131 is usually composed of three sections. When the first middle section rod 1312 is a telescopic rod formed by multiple sections of rods through a connection relationship similar to that described above, the first telescopic rod 131 is usually composed of four or more sections.

[0056] The structure of the second telescopic rod 132 may be similar to the structure of the first telescopic rod 131 described above, and will not be described in detail herein.

[0057] In the above implementation process, the first telescopic rod 131 and the second telescopic rod 132 are formed by the telescopic connection between the multiple sections of rods, which not only realizes the telescopic nature of the first telescopic rod 131 and the second telescopic rod 132, but also simplifies the structure of the first telescopic rod 131 and the second telescopic rod 132.

[0058] Please continue to refer to Figure 2In some optional embodiments, the first telescopic rod 131 may further include a first limiting mechanism 1314 and a second limiting mechanism 1315. The first limiting mechanism 1314 may be configured to limit the telescopic movement between the first middle section rod 1312 and the first first section rod 1311 when the first middle section rod 1312 and the first first section rod 1311 are extended to their longest state. The second limiting mechanism 1315 may be configured to limit the telescopic movement between the first middle section rod 1312 and the first last section rod 1313 when the first middle section rod 1312 and the first last section rod 1313 are extended to their longest state.

[0059] The second telescopic rod 132 may further include a third limiting mechanism 1324 and a fourth limiting mechanism 1325. The third limiting mechanism 1324 may be configured to limit the telescopic movement between the second middle section rod 1322 and the second first section rod 1321 when the second middle section rod 1322 and the second first section rod 1321 are extended to their longest state. The fourth limiting mechanism 1325 may be configured to limit the telescopic movement between the second middle section rod 1322 and the second last section rod 1323 when the second middle section rod 1322 and the second last section rod 1323 are extended to their longest state.

[0060] The first limiting mechanism 1314, the second limiting mechanism 1315, the third limiting mechanism 1324 and the fourth limiting mechanism 1325 can be mechanisms known to those skilled in the art for locking the length of the telescopic rod. For example, an annular protrusion is set at the corresponding position of the first telescopic rod 131 and the second telescopic rod 132 as a limit.

[0061] In the above implementation process, by configuring the first limiting mechanism 1314 and the second limiting mechanism 1315 on the first telescopic rod 131, and configuring the third limiting mechanism 1324 and the fourth limiting mechanism 1325 on the second telescopic rod 132, the first telescopic rod 131 and the second telescopic rod 132 are locked in the longest state, thereby further improving the stability of the support frame 100 in the unfolded state.

[0062] Please continue to refer to Figure 1 and Figure 2 In some optional embodiments, the first connection end 1111 and the second connection end 1112 may be located at two ends of the first support rod 111 , respectively. The third connection end 1211 and the fourth connection end 1212 may be located at two ends of the second support rod 121 , respectively.

[0063] In the above implementation process, the first connection end 1111 and the second connection end 1112 are determined as the two ends of the first support rod 111, and the third connection end 1211 and the fourth connection end 1212 are determined as the two ends of the second support rod 121. The supporting range of the folding member on the door frame is maximized, so that the stability of the support frame 100 in the unfolded state is maximized.

[0064] Please continue to refer to Figure 2 In some optional embodiments, the first telescopic rod 131 and the second telescopic rod 132 may each have a retracted state in which they are retracted to the shortest state. The length of the first telescopic rod 131 in the retracted state may not exceed the distance between the first connection end 1111 and the second connection end 1112. The length of the first telescopic rod 131 in the retracted state may not exceed the distance between the third connection end 1211 and the fourth connection end 1212. The length of the second telescopic rod 132 in the retracted state may not exceed the distance between the first connection end 1111 and the second connection end 1112. The length of the second telescopic rod 132 in the retracted state may not exceed the distance between the third connection end 1211 and the fourth connection end 1212.

[0065] When the first telescopic rod 131 and the second telescopic rod 132 are both in the retracted state, that is, the support frame 100 is in the folded state. In the support frame 100 in the folded state, the distance between the first door frame 110 and the second door frame 120 is the shortest. If the length of the first telescopic rod 131 in the retracted state exceeds the distance between the first connecting end 1111 and the second connecting end 1112, and the length of the second telescopic rod 132 in the retracted state exceeds the distance between the first connecting end 1111 and the second connecting end 1112, then the first door frame 110 and the second door frame 120 cannot be brought as close as possible, that is, the support frame 100 cannot be folded to the maximum extent.

[0066] In the above implementation process, by limiting the distance relationship between the first telescopic rod 131 and the second telescopic rod 132 in the retracted state and the first connecting end 1111 and the second connecting end 1112, as well as the distance relationship between the third connecting end 1211 and the fourth connecting end 1212, the first door frame 110 and the second door frame 120 can be brought as close as possible, thereby allowing the support frame 100 to be folded to the maximum extent.

[0067] Please refer to Figures 3 to 6 , Figure 3 yes Figure 1 A partial enlarged view of the middle A; Figure 4 yes Figure 1 A partial enlarged view of point B in the middle; Figure 5 yes Figure 1 A partial enlarged view of point C in the middle; Figure 6 yes Figure 1 A partial enlarged view of the position D in the figure. In some optional embodiments, at least one of the first connection end 1111 and the fourth connection end 1212 may be provided with a first connection portion 1113. The first connection portion 1113 extends along the support surface and may be located between the first support rod 111 and the second support rod 121. At least one of the second connection end 1112 and the third connection end 1211 may be provided with a second connection portion 1213. The second connection portion 1213 may extend along the support surface and may be located between the first support rod 111 and the second support rod 121.

[0068] That is to say, the first connection portion 1113 and the second connection portion 1213 may be protrusions on the first telescopic rod 131 and / or the second telescopic rod 132 , respectively.

[0069] In the above-mentioned implementation process, by respectively arranging the first connecting portion 1113 and the second connecting portion 1213 on the first telescopic rod 131 and / or the second telescopic rod 132, when the first door frame 110 and the second door frame 120 are as close to each other as possible, since the first connecting portion 1113 and the second connecting portion 1213 are located between the first support rod 111 and the second support rod 121, the zero-distance contact between the first support rod 111 and the second support rod 121 is limited, that is, when the support frame 100 is in a folded state, there is still a gap between the first support rod 111 and the second support rod 121, thereby preventing the operator from being pinched by the first support rod 111 and the second support rod 121 during the process of folding the support frame 100.

[0070] Please refer to Figure 7 and Figure 8 , Figure 7 is a second stereoscopic view of the support frame 100 provided in an embodiment of the present application; Figure 8 1 is a third stereogram of the support frame provided in the embodiment of the present application. In some optional embodiments, the support frame 100 provided in the embodiment of the present application may further include a connecting rod 140. One end of the connecting rod 140 may be detachably connected to the first door frame 110, and the other end of the connecting rod 140 may be detachably connected to the second door frame 120.

[0071] The detachable connection between the connecting rod 140 and the first door frame 110 and the second door frame 120 can be a snap connection, a screw connection, etc. Correspondingly, when the support frame 100 includes a third door frame, a fourth door frame, and a fifth door frame, these door frames can also be connected by the connecting rod 140. When the support frame 100 is unfolded, the connecting rod 140 can be assembled. When the support frame 100 needs to be folded, the connecting rod 140 can be removed first, and then the support frame 100 can be folded by operating the first door frame 110 and the second door frame 120 to approach each other.

[0072] Figure 7 and Figure 8 The support frame 100 shown can be used as a tent frame. Figure 8 When the support frame 100 is used as a tent frame, it can be used as a triangular tent frame because its door frame is triangular.

[0073] In the above implementation process, by setting a detachable connecting rod 140 between the first door frame 110 and the second door frame 120, the stability of the distance maintained between the first door frame 110 and the second door frame 120 in the unfolded state is further ensured, and correspondingly the stability of the support frame 100 in the unfolded state is further improved.

[0074] Please continue to refer to Figure 7 In some optional embodiments, the first door frame 110 may further include a first rotating connection mechanism 112. The two connecting ends of the first rotating connection mechanism 112 may be connected to the ends of the two first support rods 111, respectively, and may be configured to achieve folding and unfolding between at least two first support rods 111. The second door frame 120 may further include a second rotating connection mechanism 122. The two connecting ends of the second rotating connection mechanism 122 may be connected to the ends of the two second support rods 121, respectively, and may be configured to achieve folding and unfolding between at least two second support rods 121.

[0075] The first rotating mechanism may be a component or assembly in the prior art that can realize the rotational connection of the two first support rods 111. The second rotating mechanism may be a component or assembly in the prior art that can realize the rotational connection of the two second support rods 121.

[0076] In the above implementation process, the folding and unfolding of the two first support rods 111 on the first door frame 110 is realized through the first rotating connection mechanism 112, and the folding and unfolding of the two second support rods 121 on the second door frame 120 is realized through the second rotating connection mechanism 122, thereby realizing the foldability of the first door frame 110 and the second door frame 120. In the process of folding the support frame 100, in addition to bringing the first door frame 110 and the second door frame 120 closer to each other through the folding assembly 130, the first door frame 110 and the second door frame 120 can also be folded through their own foldability, thereby further reducing the space occupied by the support frame 100 in the folded state.

[0077] Based on the same concept, an embodiment of the present application provides a tent, which may include a tent cloth and the supporting frame 100 described above.

[0078] The material of the tent cloth can be nylon, polyester, polyethylene or cotton cloth, etc. It can be laid on the support frame 100 to form a tent.

[0079] The above implementation process may be the same as the support frame 100 described above, and will not be repeated here.

[0080] In summary, the support frame 100 and the tent provided in each embodiment of the present application are connected to the first door frame 110 and the second door frame 120 respectively through the folding assembly 130 that crosses each other. Since the first telescopic rod 131 and the second telescopic rod 132 in the folding assembly 130 can be telescopic, when the first door frame 110 and the second door frame 120 are close to each other, the first telescopic rod 131 and the second telescopic rod 132 only need to shorten their own lengths accordingly, without any connection end of the folding assembly 130 sliding on the first support rod 111 or the second support rod 121, so that the distance between the two connection points between the folding assembly 130 and the first support rod 111 and the distance between the two connection points between the folding assembly 130 and the second support rod 121 will not be changed. Accordingly, the situation that the support range of the folding assembly 130 on the door frame will be reduced as the degree of expansion of the support frame 100 increases, resulting in a lower stability of the support frame 100 will not occur, thereby improving the stability of the support frame 100. By rotating and connecting the first telescopic rod 131 and the second telescopic rod 132 at their intersection, when the lengths of the first telescopic rod 131 and the second telescopic rod 132 remain unchanged, the first telescopic rod 131, the first telescopic rod 131, the first support rod 111 and the second support rod 121 form two fixed triangles. Therefore, any two of the first telescopic rod 131, the first telescopic rod 131, the first support rod 111 and the second support rod 121 will not move relative to each other. That is, the stability of the support frame 100 is further improved. By determining the first connecting end 1111 and the second connecting end 1112 as the two ends of the first support rod 111, and by determining the third connecting end 1211 and the fourth connecting end 1212 as the two ends of the second support rod 121. The supporting range of the folding member on the door frame is maximized, thereby maximizing the stability of the support frame 100 in the unfolded state. By respectively providing the first connecting portion 1113 and the second connecting portion 1213 on the first telescopic rod 131 and / or the second telescopic rod 132 , it is possible to prevent the operator's hands from being pinched by the first support rod 111 and the second support rod 121 when operating the support frame 100 to fold.

[0081] In traditional support frames, especially those used for tents, the way in which the scissor assembly between the door frames is fixedly connected at one end and slidably connected at the other end affects the deployment distance of the support frame, resulting in an increase in the amount of support frames with the same deployment length. For example, in order to facilitate operation, the support rods in the usual door frames are generally designed to be around 1800mm in height, and the length of the scissor assembly can only be less than 1700mm (after removing the joints). When two door frames are deployed, they can only be pulled apart to a spacing of about 1500mm. Similarly, a tent of 6 meters in length must be provided with a total of 5 support frames. However, the spacing between two adjacent door frames in the support frame provided in the embodiment of the present application can be extended to 2000mm, so 4 door frames can make the length of the tent reach 6 meters.

[0082] When a conventional support frame is unfolded, the end of the scissor assembly that is slidably connected to the door frame will move toward the end that is fixedly connected to the door frame. This leaves a large area of ​​tent fabric on the sliding end side without support, resulting in a decrease in the ability of tent fabric with the same thickness and strength to resist snow loads. However, when the support frame 100 provided in the embodiment of the present application is used to support a tent, it not only expands the distance between the door frames, but also improves the uniformity of the distribution of the folding components between the two door frames, thereby improving the balance of fabric support and improving the ability of the tent to resist snow loads.

[0083] When the conventional support frame is unfolded and folded, since one end of the scissor assembly is sliding, there must be a certain sliding locking and unlocking action and structure, which increases the operation action. However, the support frame 100 provided in the embodiment of the present application omits the locking and unlocking operation of the sliding end, and ensures better stability with the support of the connecting rod 140.

[0084] Since the support frame 100 provided in the embodiment of the present application can reduce the number and volume of door frames when the tent has the same length requirement, it is more advantageous for various usage scenarios, especially mobile hospitals. It also reduces the manufacturing cost, which is conducive to popularization and application: although the structural material of the folding assembly increases, the manufacturing cost can be significantly reduced compared to reducing the number of door frames.

[0085] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A support frame, characterized in that: It includes a first door frame, a second door frame and a folding assembly; The first door frame includes at least two first support rods, and the second door frame includes at least two second support rods; The folding assembly includes a first telescopic rod and a second telescopic rod; The first telescopic rod intersects with the second telescopic rod and is coplanar with the first support rod; The plane where the first telescopic rod, the second telescopic rod and the first supporting rod are located together is a supporting surface; The first connecting end of the first support rod is rotatably connected to one end of the first telescopic rod, and the second connecting end of the first support rod is rotatably connected to one end of the second telescopic rod; The third connection end of the second support rod located on the support surface is rotatably connected to the other end of the first telescopic rod, and the fourth connection end of the second support rod located on the support surface is rotatably connected to the other end of the second telescopic rod.

2. The support frame according to claim 1, characterized in that: The first telescopic rod and the second telescopic rod are rotatably connected; wherein the rotation connection is located at the intersection of the first telescopic rod and the second telescopic rod.

3. The support frame according to claim 2, characterized in that: The first telescopic rod comprises a first first section rod, a first middle section rod and a first tail section rod; One end of the first middle section rod is telescopically connected to the first first section rod, and the other end of the first middle section rod is telescopically connected to the first tail section rod; The second telescopic rod comprises a second first section rod, a second middle section rod and a second tail section rod; One end of the second middle section rod is telescopically connected to the second first section rod, and the other end of the second middle section rod is telescopically connected to the second tail section rod; The first middle section rod and the second middle section rod are rotatably connected.

4. The support frame according to claim 3, characterized in that: The first telescopic rod further includes a first limiting mechanism and a second limiting mechanism; the first limiting mechanism is configured to limit the telescopic movement between the first middle section rod and the first first section rod when the first middle section rod and the first first section rod are extended to the longest state; the second limiting mechanism is configured to limit the telescopic movement between the first middle section rod and the first tail section rod when the first middle section rod and the first tail section rod are extended to the longest state; The second telescopic rod also includes a third limiting mechanism and a fourth limiting mechanism; the third limiting mechanism is configured to limit the telescopic movement between the second middle section rod and the second first section rod when the second middle section rod and the second first section rod are extended to their longest state; the fourth limiting mechanism is configured to limit the telescopic movement between the second middle section rod and the second tail section rod when the second middle section rod and the second tail section rod are extended to their longest state.

5. The support frame according to claim 1, characterized in that: The first connecting end and the second connecting end are respectively located at two ends of the first supporting rod; The third connecting end and the fourth connecting end are respectively located at two ends of the second supporting rod.

6. The support frame according to claim 1, characterized in that: The first telescopic rod and the second telescopic rod are respectively in a retracted state where they are retracted to their shortest state; The length of the first telescopic rod in the contracted state does not exceed the distance between the first connection end and the second connection end; the length of the first telescopic rod in the contracted state does not exceed the distance between the third connection end and the fourth connection end; The length of the second telescopic rod in the contracted state does not exceed the distance between the first connection end and the second connection end; the length of the second telescopic rod in the contracted state does not exceed the distance between the third connection end and the fourth connection end.

7. The support frame according to any one of claims 1 to 6, characterized in that: A first connecting portion is disposed on at least one of the first connecting end and the fourth connecting end; The first connecting portion extends along the supporting surface and is located between the first supporting rod and the second supporting rod; At least one of the second connection end and the third connection end is provided with a second connection portion; The second connecting portion extends along the supporting surface and is located between the first supporting rod and the second supporting rod.

8. The support frame according to any one of claims 1 to 6, characterized in that: Also included is a connecting rod; One end of the connecting rod is detachably connected to the first door frame, and the other end of the connecting rod is detachably connected to the second door frame.

9. The support frame according to any one of claims 1 to 6, characterized in that: The first gantry also includes a first rotation connection mechanism; The two connection ends of the first rotating connection mechanism are respectively connected to the ends of the two first support rods, and are configured to realize folding and unfolding between at least two of the first support rods; The second gantry also includes a second rotation connection mechanism; The two connection ends of the second rotating connection mechanism are respectively connected to the ends of the two second support rods, and are configured to achieve folding and unfolding between at least two of the second support rods.

10. A tent, characterized in that: The tent comprises a tent cloth and a supporting frame as claimed in any one of claims 1 to 9.

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