Connecting mechanism

Abstract

The invention provides a connecting mechanism. The connecting mechanism comprises a middle part, a first rotating part and a second rotating part. The first rotating member includes a first rotating end portion and a first extending end portion. The second rotating member includes a second rotating end portion and a second extending end portion. The middle piece comprises a connecting end part, and the connecting end part is connected with the first rotating end part and the second rotating end part. The first rotating member and the second rotating member rotate by taking the intermediate member as a rotation center through the connecting end portion. According to the connecting mechanism of the middleware, the first rotating piece and the second rotating piece can be connected with the middleware and rotate around the middleware, and therefore two rotatable parts are connected through a simple structure. The connecting mechanism provided by the invention can be applied to specific application scenes such as tent frames, so that the tent frames are convenient to store and release, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of machinery, and more particularly, to a connecting mechanism. Background Art

[0002] A connecting mechanism is used to connect components in a device or system. The connection method using a connecting mechanism is another connection method other than the direct connection methods of components such as welding, riveting, and hinging.

[0003] In the manufacturing industry, in order to save the increased process costs caused by adopting the above connection methods, it is usually necessary to purchase existing connecting mechanisms on the market to achieve the connection between components. For example, in the manufacturers of tent frames, they often choose to manufacture various connecting rods required for the tent by themselves, and purchase existing connecting mechanisms according to needs, or mass-produce them by themselves. To replace the above connection method of directly connecting parts together.

[0004] However, the existing connecting mechanisms in the prior art can only connect two or more components together in a specific posture and maintain this posture. For example: in the field of tent frames, some tent frames are assembled tent frames. This tent frame needs to be assembled before use and disassembled for easy storage and transfer after use. Therefore, it brings great inconvenience to the use of the tent frame. Summary of the Invention

[0005] The purpose of this application is to provide a connecting mechanism that can not only connect components together, but also enable the connected components to rotate according to needs. When it is applied to the specific application scenario of a tent frame, it can facilitate the storage and release of the tent frame and improve the user experience.

[0006] This application provides a connecting mechanism, which includes an intermediate member, a first rotating member, and a second rotating member. The first rotating member includes a first rotating end and a first extending end. The second rotating member includes a second rotating end and a second extending end. The intermediate member includes a connecting end, and the connecting end connects the first rotating end and the second rotating end. Wherein, the first rotating member and the second rotating member rotate around the intermediate member through the connecting end.

[0007] In the above connection mechanism, a connection mechanism of a middleware is provided, which can realize the connection of the first rotating member and the second rotating member to the middleware respectively and the rotation around the middleware, so as to realize the connection of two rotatable components through a simple structure. The connection mechanism provided by the present application can be applied to specific application scenarios such as tent frames to facilitate the storage and release of tent frames and improve the user experience. Further, the first rotating member and the second rotating member are respectively rotatably connected to the middleware, and the external parts are rotatably connected through the connection mechanism by connecting to the first extended end of the first rotating member and the second extended end of the second rotating member.

[0008] Optionally, the middleware further includes a connecting plate. The connecting end portion includes a first connecting end portion and a second connecting end portion located at both ends of the connecting plate. The first rotating end portion is rotatably connected to the first connecting end portion through a first rotating pin. The second rotating end portion is rotatably connected to the second connecting end portion through a second rotating pin. The first rotating member and the second rotating member respectively have inner sides and outer sides located on both sides of the first rotating pin and both sides of the second rotating pin. The first connecting end portion and the second connecting end portion are both provided with limiting blocks, and the limiting blocks have a first limiting end face and a second limiting end face. The first limiting end face is used to limit the rotation of the first rotating member and the second rotating member in the direction of increasing the included angle between the two by abutting against the outer side of the first extended end and / or the inner side of the first rotating end portion, and the outer side of the second extended end and / or the inner side of the second rotating end portion. The second limiting end face is used to limit the rotation of the first rotating member and the second rotating member in the direction of decreasing the included angle between the two by abutting against the inner side of the first extended end and / or the outer side of the first rotating end portion, and the inner side of the second extended end and / or the outer side of the second rotating end portion.

[0009] In the above connection mechanism, by providing limiting blocks at the first connecting end portion and the second connecting end portion, the rotation angles of the first rotating member and the second rotating member are limited within the required range, ensuring the stability of the device or system equipped with the connection mechanism. In addition, the rotating pin is a simple rotation connection method. Using this connection method not only simplifies the structure of the connection mechanism provided by the present application, facilitates production and manufacturing, but also improves the stability of the connection mechanism.

[0010] Optionally, the middleware includes two relatively arranged connecting plates. The connecting plates face each other with the side connected to the first rotating member and the second rotating member, and are buckled to form the middleware.

[0011] The above-mentioned connecting mechanism, through the buckling of two connecting plates, components such as the first rotating member, the second rotating member, the first rotating pin, the second rotating pin, and the limiting block are all located between the two intermediate plates, preventing the exposure of the first rotating end portion and the second rotating end portion, as well as the first rotating pin and the second rotating pin, preventing the hands of the staff from being pinched due to their exposure, and preventing foreign objects from entering. At the same time, using two identical connecting plates to buckle to form a connecting mechanism saves the mold in the manufacturing process and also reduces the unnecessary mold opening process.

[0012] Optionally, a first clamping groove is provided on the connecting plate between the first connecting end portion and the second connecting end portion, and the first clamping groove is used to receive the connecting rod. The end faces of the first rotating end portion and the second rotating end portion have a first convex structure. When the first limiting end face abuts against the outer side edge and / or the inner side edge of the first extending end portion and the first rotating end portion, and the outer side edge and / or the inner side edge of the second extending end portion, and the connecting rod is clamped in the first clamping groove, the first convex structures of the first rotating end portion and the second rotating end portion simultaneously abut against the connecting rod to limit the rotation of the first rotating member and the second rotating member in the direction of reducing the angle therebetween. The connecting plate is provided with a first anti-slip-off hook. One end of the anti-slip-off hook is a first hook portion, and the other end is a first rotating connection portion. The first rotating connection portion is rotatably connected to the connecting plate to enable the first hook portion to rotate around the first rotating connection portion within the plane of the connecting plate. When the connecting rod is clamped in the first clamping groove, rotate the first anti-slip-off hook to make the first hook portion hook the connecting rod to prevent the connecting rod from slipping out of the second clamping groove.

[0013] For the above-mentioned connecting mechanism, when the first rotating member and the second rotating member rotate to the position where the angle therebetween is the largest, through the abutment of the connecting rod against its first convex structure and then through the restriction of the connecting rod by the first anti-slip-off hook, the locking of the first rotating member and the second rotating member can be realized, improving the stability of the connecting mechanism during application. For example, when the connecting mechanism is used as a movable joint of a tent frame, the stability of the tent frame is improved. At the same time, its own structure is also simplified, saving the mold.

[0014] Optionally, the connecting plate is provided with a first anti-slip-off hook. One end of the anti-slip-off hook is a first hook portion, and the other end is a first rotating connection portion. The first rotating connection portion is rotatably connected to the connecting plate to enable the first hook portion to rotate around the first rotating connection portion within the plane of the connecting plate. When the connecting rod is clamped in the first clamping groove, rotate the first anti-slip-off hook to make the first hook portion hook the connecting rod to prevent the connecting rod from slipping out of the first clamping groove.

[0015] In the above-mentioned connection mechanism, during the above implementation process, when the connecting rod is clamped in the first card slot, the connecting rod is hooked by the first anti-slip hook, preventing the connecting rod from slipping out of the first card slot. At the same time, through the restriction of the connecting rod by the first anti-slip hook, the stability of the connecting rod when it is clamped in the first card slot is further ensured. Furthermore, the stability of the first rotating member and the second rotating member in the restricted state is further improved, that is, the stability when the connection mechanism is applied. For example, when the connection mechanism is used as a movable joint of a tent frame, the stability of the tent frame is further improved.

[0016] Optionally, when the first rotating member rotates around the first rotating pin and the second rotating member rotates around the second rotating pin, the projection of the first convex structure of the first rotating end and the second rotating end on the plane where the connecting plate is located is located within the connecting plate.

[0017] In the above-mentioned connection mechanism, through the design, the first convex structure will never protrude outside the connecting plate, preventing the first convex structure from being damaged when it is exposed outside the connecting plate. Furthermore, the stability when the first rotating member and the second rotating member are locked is avoided from being affected.

[0018] Optionally, the end faces of the first rotating end and the second rotating end have second convex structures. The intermediate member further includes a limiting member slidably disposed between the first connecting end and the second connecting end. Both ends of the limiting member have limiting portions that can abut against the second convex structures, and are configured to: limit the rotation of the first rotating member and the second rotating member in the direction of reducing the included angle between the two by the abutment of the limiting portions against the second convex structures.

[0019] In the above-mentioned connection mechanism, when an external component is connected and the component needs to maintain a certain angle, through the abutting cooperation between the limiting member and the second convex structure, the locking of the included angle between the first rotating member and the second rotating member is realized, so that the device or system including the connection mechanism provided in the present application can stably maintain a specific posture, and further improves the stability of the device or system including the connection mechanism provided in the present application.

[0020] Optionally, the connecting plate is provided with a second card slot located between the first connecting end and the second connecting end, and the second card slot is used to receive the connecting rod. When the connecting rod is clamped in the second card slot, the connecting rod abuts against the middle part of the limiting member and makes the limiting member abut against the second convex structure.

[0021] For the above-mentioned connecting mechanism, in addition to the first rotating member and the second rotating member being used to connect external components, the second card slot therein can also be used to connect an external connecting rod. Furthermore, by inserting the external connecting rod into the second card slot and abutting against the middle of the limiting member, the second protruding structures at the first rotating end and the second rotating end are abutted, so as to improve the stability of the device or system including the connecting mechanism provided in this application by locking the rotation of the first rotating member and the second rotating member. Without setting other components to lock the first rotating member and the second rotating member, while ensuring the stability, the structure of itself is also simplified.

[0022] Optionally, the limiting member includes a guiding portion. The connecting plate is provided with a guiding groove matching the guiding portion. The guiding groove is configured to: by guiding the sliding of the guiding portion along the guiding groove, realize the abutment and avoidance of the limiting portion against the second protruding structure. An elastic member is arranged between the guiding groove and the guiding portion, and two ends of the elastic member are respectively connected to the end of the guiding portion and the end of the guiding groove. When the limiting portion abuts against the second protruding structure, the elastic member is in a compressed state. When the limiting portion avoids the second protruding structure, the elastic member is in a relaxed state.

[0023] For the above-mentioned connecting mechanism, under the guiding action of the guiding groove, the limiting member slides along the guiding groove, avoiding the limiting member sliding along an irregular route and improving the reliability of the connecting mechanism. At the same time, an elastic member is arranged in the guiding groove. When an external part is inserted into the second card slot and abuts against the limiting member, and the limiting member slides to abut against the second protruding structures at the first rotating end and the second rotating end, the elastic member is compressed to a compressed state. When the external part connecting rod is removed from the second card slot, the limiting member is automatically unlocked from the first rotating member and the second rotating member under the action of the elastic member in the compressed state, improving the convenience.

[0024] Optionally, on the side of the connecting plate where the limiting member is not provided, a second anti-slip and anti-disengagement hook is provided. One end of the second anti-slip and anti-disengagement hook is a second hook portion, and the other end is a second rotating connection portion. The second rotating connection portion is rotatably connected to the connecting plate to enable the second hook portion to rotate in the plane of the connecting plate around the second rotating connection portion. When the connecting rod is inserted into the second card slot, rotate the second anti-slip and anti-disengagement hook to make the second hook portion hook the connecting rod to prevent the connecting rod from slipping out of the second card slot.

[0025] In the above-mentioned connection mechanism, when the connecting rod is clamped in the second card slot, the connecting rod is hooked by the second anti-slip hook, preventing the connecting rod from slipping out of the second card slot. At the same time, through the restriction of the connecting rod by the second anti-slip hook and the restriction of the limiting member by the connecting rod, the rotation of the first rotating member and the second rotating member is finally restricted by the limiting member. The stability of the first rotating member and the second rotating member in the restricted state is further improved.

[0026] Optionally, a first flange surrounding the connecting rod is provided on the part of the connecting rod clamped in the second card slot. A second flange extending into the second card slot and matching the first flange is provided at the edge of the second card slot, and is configured to prevent the connecting rod from sliding along its length direction inside the second card slot by matching with the first flange.

[0027] In the above-mentioned connection mechanism, when the external part connecting rod is clamped inside the second card slot, through the cooperation between its own first flange and the second flange of the connection mechanism, the sliding of the connecting rod clamped in the second card slot in its length direction is avoided, and the stability of the connection between the external part and the connection mechanism is improved.

[0028] Optionally, the connecting rod includes a first connecting rod and a second connecting rod. The first connecting rod and / or the second connecting rod has a flange at its end. The end of the first connecting rod is detachably connected to the end of the second connecting rod. The flange is used to be clamped in the second card slot. First anti-slip sunk platforms surrounding both ends of the second card slot are respectively provided on both sides of the connecting plate. And the opening of the end face of the first anti-slip sunk platform is smaller than the diameters of the ends of the first connecting rod and the second connecting rod.

[0029] In the above-mentioned connecting member, when the flange of the connecting rod is clamped in the second card slot, the side edges of the ends of the first connecting rod and the second connecting rod 230 are restricted by the end face of the first anti-slip sunk platform, preventing the flange from slipping out of the second card slot. In addition, when the flange is clamped in the second card slot, by abutting the flange against the bottom surface of the anti-slip sunk platform, the sliding of the connecting rod along its length direction is avoided, and the stability of the connection between the connecting rod and other external parts and the connection mechanism is improved.

[0030] Optionally, the middleware includes a rotating connection shaft, and the connection end is disposed around the rotating connection shaft. The rotating connection shaft penetrates through the first rotating end and the second rotating end, enabling the first rotating member and the second rotating member to rotate around the rotating connection shaft. First limiting grooves and second limiting grooves are respectively formed on the end faces of the first rotating end and the second rotating end, and the first limiting grooves and the second limiting grooves are used to receive the connecting rod. When the first rotating member and the second rotating member rotate to a position where the first limiting groove coincides with the second limiting groove, the connecting rod is clamped in the first limiting groove and the second limiting groove to limit the rotation of the first rotating member and the second rotating member.

[0031] In the above connection mechanism, the first rotating member and the second rotating member are connected by a rotating connection shaft to achieve their rotatable connection. At the same time, when the first rotating member and the second rotating member rotate to a position where the first limiting groove coincides with the second limiting groove, the connecting member is clamped therein, achieving the locking of the rotation of the first rotating member and the second rotating member, and improving the stability of the connection mechanism in this state.

[0032] Optionally, the first rotating end includes a first connecting portion rotatably connected to the connection end, and the second rotating end includes two second connecting portions rotatably connected to the connection end. The first connecting portion is embedded between the two second connecting portions. The rotating connection shaft penetrates through the first connecting end and the second connecting end. The first connecting portion has a first extending portion extending along its plane, and the second connecting portion has two second extending portions extending along their respective planes. The first limiting groove is disposed on the first extending portion, and the second limiting groove is disposed on the second extending portion. When the first rotating end and the second rotating end rotate to a position where the first limiting groove coincides with the second limiting groove, the first extending portion is embedded between the two second extending portions.

[0033] In the above connection mechanism, since the first rotating member and the second rotating member have a certain thickness, if the rotating connection shaft simply penetrates the first rotating member and the second rotating member to achieve rotatable connection, the thickness of the connection mechanism will increase, thereby increasing the space occupancy rate of the connection mechanism. In the above embodiment, the first connecting portion is embedded between the two second connecting portions and is respectively connected to the first rotating member and the second rotating member, reducing the overall thickness of the connection mechanism and thus reducing the space occupancy rate of the connection mechanism.

[0034] Optionally, the connecting rod includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod have flanges at their respective ends. The end of the first connecting rod is detachably connected to the end of the second connecting rod. The flanges of the first connecting rod and the second connecting rod are used to be clamped in the first limiting groove and the second limiting groove. And the diameter of the flange is smaller than the diameters of the ends of the first connecting rod and the second connecting rod. On the side surface of the two second extending parts facing away from the first connecting part, second anti-slip sinking platforms recessed towards each other are provided. The second anti-slip sinking platforms are arranged along the edge of the second limiting groove. And the opening of the end surface of the second anti-slip sinking platform is smaller than the diameters of the ends of the first connecting rod and the second connecting rod.

[0035] For the above connecting mechanism, when the flanges of the connecting rod are clamped in the first limiting groove and the second limiting groove, the side edges of the ends of the first connecting rod and the second connecting rod of the second anti-slip sinking platform are restricted by the end surface of the sinking platform, preventing the flanges from slipping out of the first limiting groove and the second limiting groove. At the same time, since the diameter of the flange is smaller than the diameters of the ends of the first connecting rod and the second connecting rod, when the flange is clamped in the first limiting groove and the second limiting groove, the sliding of the connecting rod in its length direction is avoided, improving the stability of the connection between the external parts and the connecting mechanism.

[0036] Optionally, the connecting mechanism provided in the present application is configured to form a door frame in a tent frame. Among them, the middle member in the connecting mechanism forms an end connecting part component in the door frame, and the first rotating member and the second rotating member respectively form supporting members for supporting the end connecting component.

[0037] For the above connecting mechanism, when configured to form a door frame in a tent frame, in the connecting mechanism, the first rotating member and the second rotating member are rotatably connected to the middle member, enabling the door frame to be retractable and deployable. When the door frame is in the deployed state, the stability of the door frame in the deployed state is improved by the restriction of the rotation of the first rotating member and the second rotating member by the limiting member or the limiting groove in the connecting mechanism.

[0038] Preferably, the door frame includes a first door frame and a second door frame. The connecting mechanism is also used to connect the first door frame and the second door frame through the connecting rod.

[0039] The above-mentioned connecting mechanism connects the first gantry and the second gantry by receiving the connecting rod in the overlapping first limiting groove and second limiting groove, or the second clamping groove in the connecting mechanism, so as to form a tent frame or a part of the tent frame. At the same time, by clamping the connecting rod in the overlapping first limiting groove and second limiting groove, or in the second clamping groove, the rotation of the first rotating part and the second rotating part that constitute the gantry support rod is locked, ensuring the stability of the gantry in the unfolded state, that is, improving the stability of the tent frame. By "using one rod for two purposes", it is avoided that a connecting rod is required when locking the connecting mechanism, and a connecting rod is also required to connect the first gantry and the second gantry of the tent frame.

[0040] In the connecting mechanism provided by the present application, the first rotating part and the second rotating part that can be connected to external parts such as the tent frame support rod and the connecting rod are rotatably connected to the middle part. When the external parts are connected to the first rotating part and the second rotating part, the rotatable connection between the external parts is realized. At the same time, the connecting mechanism realizes the connection of the parts other than the parts connected by the first rotating part and the second rotating part by the way that the external part connecting rod is embedded therein, and locks the rotation of the first rotating part and the second rotating part through this embedding method, so that the first rotating part and the second rotating part maintain the required included angle, improving the stability of the connecting mechanism in this state, which can be described as killing two birds with one stone. Especially when the connecting mechanism provided by the present application is used for a tent frame, the gantry of the tent frame can be stored, and at the same time, the stability of the tent frame in the unfolded state is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0042] Figure 1 It is the first structural schematic diagram of the first connecting mechanism provided by the embodiment of the present application;

[0043] Figure 2 It is the first structural schematic diagram of the second connecting mechanism provided by the embodiment of the present application;

[0044] Figure 3 It is the structural schematic diagram of the connecting plate in the second connecting mechanism provided by the embodiment of the present application;

[0045] Figure 4 It is the three-dimensional view when the second connecting mechanism provided by the embodiment of the present application is combined with the external structure;

[0046] Figure 5Schematic diagram of the second structure of the first connection mechanism provided by the embodiment of the present application;

[0047] Figure 6 Schematic diagram of the third structure of the first connection mechanism provided by the embodiment of the present application;

[0048] Figure 7 Schematic diagram of the fourth structure of the first connection mechanism provided by the embodiment of the present application;

[0049] Figure 8 First three-dimensional view when the first connection mechanism provided by the embodiment of the present application is combined with an external structure;

[0050] Figure 9 Second three-dimensional view when the first connection mechanism provided by the embodiment of the present application is combined with an external structure;

[0051] Figure 10 Top view when the first connection mechanism provided by the embodiment of the present application is combined with an external structure;

[0052] Figure 11 Schematic diagram of the structure of the third connection mechanism provided by the embodiment of the present application;

[0053] Figure 12 Schematic diagram of the connecting plate structure in the third connection mechanism provided by the embodiment of the present application;

[0054] Figure 13 Three-dimensional view when the third connection mechanism provided by the embodiment of the present application is combined with an external structure;

[0055] Figure 14 First schematic diagram of the structure of the fourth connection mechanism provided by the embodiment of the present application;

[0056] Figure 15 Second schematic diagram of the structure of the fourth connection mechanism provided by the embodiment of the present application;

[0057] Figure 16 Schematic diagram of the structure of the fifth connection mechanism provided by the embodiment of the present application;

[0058] Figure 17 Schematic diagram of the structure of the connecting rod provided by the embodiment of the present application;

[0059] Figure 18 Schematic diagram of the structure of the tent frame provided by the embodiment of the present application.

[0060] Description of reference numerals: 100, connecting mechanism; 110, intermediate member; 111, connecting end; 112, connecting plate; 1121, first connecting end; 1122, second connecting end; 113, rotating connecting shaft; 120, first rotating member; 121, first rotating end; 1211, first connecting portion; 1212, first extending portion; 122, first extending end; 123, first rotating pin; 130, second rotating member; 131, second rotating end; 1311, second connecting portion; 1312, second extending portion; 132, second extending end; 133, second rotating pin; 140, limiting block; 141, first limiting end face; 142, second limiting end face; 151, inner side; 152, outer side; 161, first convex structure; 162, first card slot; 163, first anti-slip hook; 1631, first hook portion; 1632, first rotating connecting portion; 171, limiting member; 172, second convex structure; 173, guiding portion; 174, guiding slot; 175, elastic member; 176, second card slot; 177, second flange; 178, second anti-slip hook; 1781, second hook portion; 1782, second rotating connecting portion; 179, first anti-slip sinking platform; 181, first limiting slot; 182, second limiting slot; 183, second anti-slip sinking platform; 200, connecting rod; 210, first flange; 220, first connecting rod; 230, second connecting rod; 240, concave flange; 300, tent frame; 310, support rod; 320, first door frame; 330, second door frame. Detailed Description of the Invention

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0062] 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 claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0063] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0064] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present application 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 should not be construed as a limitation to the present application. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0065] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0066] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "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 application can be understood according to specific situations.

[0067] Please refer to Figure 1 , Figure 1 FIG. 157 is a first schematic structural diagram of the connection mechanism 100 provided by an embodiment of the present application. It includes an intermediate member 110, a first rotating member 120, and a second rotating member 130. The first rotating member 120 includes a first rotating end portion 121 and a first extending end portion 122. The second rotating member 130 includes a second rotating end portion 131 and a second extending end portion 132. The intermediate member 110 includes a connecting end portion 111, and the connecting end portion 111 connects the first rotating end portion 121 and the second rotating end portion 131. Wherein, the first rotating member 120 and the second rotating member 130 rotate around the intermediate member 110 with the connecting end portion 111 as the rotation center.

[0068] For the two ends of the first rotating member 120 relative to its rotation axis, one end is the first rotating end portion 121 and the other end is the first extending end portion 122. For the two ends of the second rotating member 130 relative to its rotation axis, one end is the second rotating end portion 131 and the other end is the second extending end portion 132. The first extending end portion 122 and the second extending end portion 132 are used to connect to external parts such as tent pole support rods, and their lengths can be set by those skilled in the art according to actual needs, and the embodiments of the present application do not make specific limitations thereto.

[0069] In the above implementation process, by providing a connecting mechanism 100 for a middleware 110, it realizes the connection of a first rotating member 120 and a second rotating member 130 to the middleware 110 respectively and their rotation around the middleware, thereby realizing the connection of two rotatable components through a simple structure. The connecting mechanism 100 provided in the present application can be applied to specific application scenarios such as a tent frame to facilitate the storage and release of the tent frame and improve the user experience. Further, the first rotating member 120 and the second rotating member 130 are respectively rotatably connected to the middleware 110, and external parts such as tent frame support rods are connected to the first extension end 122 of the first rotating member 120 and the second extension end 132 of the second rotating member 130, so that the external parts are rotatably connected through the connecting mechanism 100.

[0070] A possible implementation manner is as follows. Please refer to Figure 2 , Figure 2 which is the first structural schematic diagram of the second connecting mechanism 100 provided in the embodiment of the present application. Among them, the middleware 110 further includes a connecting plate 112. The connecting end 111 includes a first connecting end 1121 and a second connecting end 1122 located at both ends of the connecting plate 112. The first rotating end 121 is rotatably connected to the first connecting end 1121 through a first rotating pin 123. The second rotating end 131 is rotatably connected to the second connecting end 1122 through a second rotating pin 133. The first rotating member 120 and the second rotating member 130 respectively have inner sides 151 and outer sides 152 located on both sides of the first rotating pin 123 and both sides of the second rotating pin 133. The first connecting end 1121 and the second connecting end 1122 are both provided with limit blocks 140, and the limit blocks 140 have a first limit end face 141 and a second limit end face 142. The first limit end face 141 is used to limit the rotation of the first rotating member 120 and the second rotating member 130 in the direction of increasing the included angle between them by abutting against the outer side 152 of the first extension end 122 and / or the inner side 151 of the first rotating end 121, and the outer side 152 of the second extension end 132 and / or the inner side 151 of the second rotating end 131. The second limit end face 142 is used to limit the rotation of the first rotating member 120 and the second rotating member 130 in the direction of decreasing the included angle between them by abutting against the inner side 151 of the first extension end 122 and / or the outer side 152 of the first rotating end 121, and the inner side 151 of the second extension end 132 and / or the outer side 152 of the second rotating end 131.

[0071] Among the first rotating member 120 and the second rotating member 130, on the sides in their length directions, the inner side 151 and the outer side 152 are respectively distributed on both sides of their rotation axes. When the included angle between the first rotating member 120 and the second rotating member decreases, its rotation direction is towards the side where the inner side 151 is located. When the included angle between the first rotating member 120 and the second rotating member increases, its rotation direction is towards the side where the outer side 152 is located.

[0072] Therefore, when the first limiting end face 141 of the limiting block 140 abuts against the outer side 152 of the first extending end portion 122 and / or the inner side 151 of the first rotating end portion 121, its rotation towards the outer side 152 of the first rotating member 120 can be restricted. When the first limiting end face 141 of the limiting block 140 abuts against the outer side 152 of the second extending end portion 132 and / or the inner side 151 of the second rotating end portion 131, its rotation towards the outer side 152 of the second rotating member 130 can be restricted. Furthermore, the rotation of the first rotating member 120 and the second rotating member 130 in the direction of increasing the included angle therebetween can be restricted.

[0073] Meanwhile, when the second limiting end face 142 of the limiting block 140 abuts against the inner side 151 of the first extending end portion 122 and / or the outer side 152 of the first rotating end portion 121, its rotation towards the inner side 151 of the first rotating member 120 can be restricted. When the first limiting end face 141 of the limiting block 140 abuts against the inner side 151 of the second extending end portion 132 and / or the outer side 152 of the second rotating end portion 131, its rotation towards the inner side 151 of the second rotating member 130 can be restricted. Furthermore, the rotation of the first rotating member 120 and the second rotating member 130 in the direction of decreasing the included angle therebetween can be restricted.

[0074] Therefore, those skilled in the art can set the specific positions of the first limiting end face 141 and the second limiting end face 142 of the limiting block 140 on the connecting plate 112 by themselves according to the above principles and in combination with the actual requirements, that is, the maximum included angle and the minimum included angle between the first rotating member 120 and the second rotating member 130. The embodiments of the present application do not make specific restrictions on this.

[0075] The above connection mechanism 100 realizes the restriction of the rotation angles of the first rotating member 120 and the second rotating member 130 within the required range by arranging the limiting block 140 at the first connection end portion 1121 and the second connection end portion 1122, ensuring the stability of the device or system equipped with the connection mechanism 100.

[0076] For an optional implementation manner, please continue to refer to Figure 1 and Figure 2 , the intermediate member 110 includes two connecting plates 112 arranged oppositely. The connecting plates 112 face each other with the surfaces connected to the first rotating member 120 and the second rotating member 130 and are buckled to form the intermediate member 110.

[0077] In the above implementation process, through the fastening of the two connecting plates 112, components such as the first rotating member 120, the second rotating member 130, the first rotating pin 123, the second rotating pin 133, and the limiting block 140 are all located between the two intermediate plates, avoiding the exposure of the first rotating end portion and the second rotating end portion 131, as well as the first rotating pin 123 and the second rotating pin 133, preventing the hands of the staff from being pinched due to their exposure and preventing foreign objects from entering. At the same time, two identical connecting plates 112 are fastened to form the connecting mechanism 100, saving the mold in the manufacturing process.

[0078] An alternative implementation manner, please refer to Figure 2 and Figure 3 and Figure 4 , Figure 3 is a schematic structural view of the connecting plate in the second connecting mechanism 100 provided by the embodiment of the present application; Figure 4 is a perspective view when the second connecting mechanism 100 provided by the embodiment of the present application is combined with an external structure. Among them, the connecting plate 112 is provided with a first card slot 162 located between the first connecting end portion and the second connecting end portion, and the first card slot 162 is used to receive the connecting rod 200. The end faces of the first rotating end portion 121 and the second rotating end portion 131 have a first convex structure 161. When the first limiting end face 141 abuts against the outer side edge of the first extending end portion 122 and / or the inner side edge 151 of the first rotating end portion 121, and the outer side edge 152 of the second extending end portion 132 and / or the inner side edge 151 of the second rotating end portion 131, and the connecting rod 200 is clamped in the first card slot 162, the first convex structures 161 of the first rotating end portion 121 and the second rotating end portion 131 simultaneously abut against the connecting rod 200 to limit the rotation of the first rotating member 120 and the second rotating member 130 in the direction of reducing the included angle between the two.

[0079] In other words, when the included angle between the first rotating member 123 and the second rotating member 133 is the largest, the first convex structures 161 of the first rotating end portion 121 and the second rotating end portion 131 simultaneously abut against the connecting rod 200.

[0080] When the two first convex structures 161 simultaneously abut against the connecting rod 200, there may be a gap between the projections of the two first convex structures 161 on the plane where the connecting plate 112 is located, or they may just be in contact, or: there is an overlapping part between the two projections. It should be noted that the situation where there is an overlapping part between the two projections means that as shown in Figure 2 , the two first convex structures 161 cross.

[0081] During manufacturing, regardless of whether the two projections are separated, tangent, or intersecting, the first rotating member 120 and the second rotating member 130 can have exactly the same mechanism and shape. Therefore, the first rotating member 120 and the second rotating member 130 can be manufactured using the same set of molds.

[0082] In the above implementation process, when the first rotating member 120 and the second rotating member 130 rotate to the position where the included angle between them is the largest, by the abutment of the connecting rod 200 against the first convex structure 161 and then the restriction of the connecting rod 200 by the first anti-slip hook 163, the locking of the first rotating member 120 and the second rotating member 130 can be achieved, improving the stability of the connection mechanism 100 during application. For example, when the connection mechanism 100 is used as a movable joint of a tent frame, the stability of the tent frame is improved. At the same time, its own structure is also simplified, saving molds.

[0083] An optional implementation manner, please continue to combine Figure 2 Refer to Figure 3 and Figure 4 . Among them, the connecting plate 112 is provided with a first anti-slip hook 163. One end of the first anti-slip hook 163 is a first hook portion 1631, and the other end is a first rotating connection portion 1632. The first rotating connection portion 1632 is rotatably connected to the connecting plate 112 to enable the first hook portion 1631 to rotate around the first rotating connection portion 1632 within the plane of the connecting plate 112. When the connecting rod 200 is engaged in the first card slot 162, rotate the first anti-slip hook 163 so that the first hook portion 1631 hooks the connecting rod 200 to prevent the connecting rod 200 from slipping out of the first card slot 162.

[0084] When external parts such as the connecting rod 200 are engaged inside the first card slot 162, rotate the first anti-slip hook 163 until the first hook portion 1631 hooks the connecting rod 200 to prevent the connecting rod 200 from slipping out of the first card slot 162. And when it is necessary to disassemble the connecting rod 200 from the connection mechanism 100, rotate the first anti-slip hook 163 to a position where the hooking between the first hook portion 1631 and the connecting rod 200 is released, and then the connecting rod 200 can be disassembled from the connection mechanism 100.

[0085] In the above implementation process, when the connecting rod 200 is clamped in the first card slot 162, the connecting rod 200 is hooked by the first anti-slip hook 163, preventing the connecting rod 200 from slipping out of the first card slot 162. At the same time, through the restriction of the connecting rod 200 by the first anti-slip hook 163, the stability of the connecting rod 200 when it is clamped in the first card slot 162 is further ensured. Furthermore, the stability of the first rotating member 120 and the second rotating member 130 in the restricted state is further improved, that is, the stability of the connecting mechanism 100 when applied. For example, when the connecting mechanism 100 is used as a movable joint of a tent frame, the stability of the tent frame is further improved.

[0086] An alternative implementation manner, please refer to Figure 1 reference Figures 5 to 7 , Figure 5 which is the second schematic structural diagram of the first connecting mechanism 100 provided by the embodiment of the present application; Figure 6 which is the third schematic structural diagram of the first connecting mechanism 100 provided by the embodiment of the present application; Figure 7 which is the fourth schematic structural diagram of the first connecting mechanism 100 provided by the embodiment of the present application. Wherein, when the first rotating member 120 rotates around the first rotating pin 123 and the second rotating member 130 rotates around the second rotating pin 133. The projection of the first convex structure 161 of the first rotating end 121 and the second rotating end 131 on the plane where the connecting plate 112 is located is located within the connecting plate 112.

[0087] Regardless of the positions to which the first rotating member 120 and the second rotating member 130 rotate, their respective first convex structures 161 will not protrude beyond the connecting plate 112.

[0088] In the above implementation process, by designing such that the first convex structure 161 never protrudes beyond the connecting plate 112, it is prevented that the first convex structure 161 is exposed outside the connecting plate 112 and damaged. Furthermore, the stability when the first rotating member 120 and the second rotating member 130 are locked is avoided from being affected.

[0089] An alternative implementation manner, please continue to refer to Figure 1 reference Figures 5 to 7 . Wherein, the end faces of the first rotating end 121 and the second rotating end 131 have a second convex structure 172. The intermediate member 110 further includes a limiting member 1171 slidably disposed between the first connecting end 1121 and the second connecting end 1122. Both ends of the limiting member 1171 have limiting portions that can abut against the second convex structure 172, and are configured to: limit the rotation of the first rotating member 120 and the second rotating member 130 in the direction of reducing the included angle between the two by the abutment of the limiting portions against the second convex structure 172.

[0090] When the first rotating member 120 and the second rotating member 130 rotate to the maximum or minimum angle between them and it is necessary to lock this state, the limiting member 1171 is slid until both ends thereof abut against the second protruding structure 172 to limit the rotation of the first rotating member 120 and the second rotating member 130. Figure 9 It shows the specific structure, positional relationship of the second protruding structure 172 when the first rotating member 120 and the second rotating member 130 rotate to the maximum angle between them, and the limiting member 1171 abuts against it to keep the maximum angle state. Those skilled in the art can make adaptive adjustments based on the embodiments of the present application to achieve the state where the angle between the first rotating member 120 and the second rotating member 130 is the minimum.

[0091] For the above-mentioned connecting mechanism 100, when an external component is connected and it is necessary for the component to maintain a certain angle, through the abutting cooperation between the limiting member 1171 and the second protruding structure 172, the locking of the angle between the first rotating member 120 and the second rotating member 130 is achieved, so that the device or system including the connecting mechanism 100 provided in the present application can stably maintain a specific posture, thereby improving its stability.

[0092] An optional implementation manner, please refer to Figures 5 to 7 Refer to Figures 8 to 10 , Figure 8 FIG. 14 is a first perspective view when the first connecting mechanism 100 provided in the embodiment of the present application is combined with an external structure; Figure 9 FIG. 15 is a second perspective view when the first connecting mechanism 100 provided in the embodiment of the present application is combined with an external structure; Figure 10 FIG. 16 is a top view when the first connecting mechanism 100 provided in the embodiment of the present application is combined with an external structure. Wherein, the connecting plate 112 is provided with a second card slot 176 located between the first connecting end portion 1121 and the second connecting end portion 1122, and the second card slot 176 is used to receive the connecting rod 200. When the connecting rod 200 is embedded in the second card slot 176, the connecting rod 200 abuts against the middle of the limiting member 1171 and makes the limiting member 1171 abut against the second protruding structure 172.

[0093] Exemplarily, the first extension end portion 122 and the second extension end portion 132 are respectively connected with a support rod 310 to form a gantry, and the connecting rod 200 connects the connecting mechanisms 100 in each gantry through the second card slot 176 to form a frame, such as: a collapsible tent frame 300, a collapsible stacking rack, etc.

[0094] The connecting rod 200 is connected to the connecting mechanism 100 through the second card slot 176. On the one hand, it is to connect multiple connecting mechanisms 100. On the other hand, it is to realize the abutment of the limiting member 1171 against the second convex structure 172 through the abutment of the connecting rod 200 against the limiting member 1171.

[0095] In the above implementation process, in addition to the first rotating member 120 and the second rotating member 130 being used to connect external components, the second card slot 176 can also be used to connect an external connecting rod 200. In addition, by inserting the external connecting rod 200 into the second card slot 176 and abutting against the middle of the limiting member 1171, the limiting member abuts against the second convex structure 172 of the first rotating end 121 and the second rotating end 131, so as to improve the stability of the device or system including the connecting mechanism 100 provided in the present application by locking the rotation of the first rotating member 120 and the second rotating member 130. There is no need to set other components to lock the first rotating member 120 and the second rotating member 130, which not only ensures the stability but also simplifies its own structure.

[0096] An alternative implementation, please continue to refer to Figures 5 to 10 . Among them, the limiting member 1171 includes a guiding portion 173. The connecting plate 112 is provided with a guiding groove 174 matching the guiding portion 173. The guiding groove 174 is configured to: realize the abutment and avoidance of the limiting portion against the second convex structure 172 by guiding the sliding of the guiding portion 173 along the guiding groove 174. An elastic member 165 is provided between the guiding groove 174 and the guiding portion 173, and both ends of the elastic member 165 are respectively connected to the end of the guiding portion 173 and the end of the guiding groove 174. When the limiting portion abuts against the second convex structure 172, the elastic member 165 is in a compressed state. When the limiting portion avoids the second convex structure 172, the elastic member 165 is in a relaxed state.

[0097] The number of the guiding grooves 174 can be one, which can correspond to the middle position of the limiting member 1171; it can also be two, corresponding to the positions on both sides of the middle of the limiting member 1171; it can also be three, four... The number and position of the guiding portions 173 can also be correspondingly set according to the number and position of the guiding grooves 174. The present application does not make specific limitations on this.

[0098] The elastic member 165 disposed in the guide groove 174 is used to restore the stopper 1171 to a position that avoids the second protruding structure 172 and allows the first rotating member 120 and the second rotating member 130 to rotate. Therefore, when the stopper 1171 slides to the second protruding structure 172 that abuts the first rotating end 121 and the second rotating end 131, the external parts such as the connecting rod 200 are embedded in the second slot 176 and abut the stopper 1171, and the elastic member 165 is compressed to a compressed state. When the connecting rod 200 is removed from the second slot 176, the elastic member 165 returns to a relaxed state under the action of its own elasticity, and pushes the stopper 1171 to a position that avoids the second protruding structure 172 of the first rotating end 121 and the second rotating end 131.

[0099] In addition, the number of elastic members 165 does not necessarily correspond to the number of guide grooves 174. For example, when three guide grooves 174 are provided, the elastic member 165 may be provided in one of the guide grooves 174, or in two of the guide grooves 174, or in all three guide grooves 174. Those skilled in the art may set the number according to actual needs, and the embodiments of the present application do not impose specific limitations on this.

[0100] During the above implementation, under the guiding action of the guide groove 174, the stopper 1171 slides along the guide groove 174, thereby preventing the stopper 1171 from sliding along an irregular route, thereby improving the reliability of the connection mechanism 100. At the same time, an elastic member 165 is arranged in the guide groove 174. When the external parts such as the connecting rod 200 are embedded in the second slot 176 to abut against the stopper 1171, and the stopper 1171 slides to abut against the second protruding structure 172 of the first rotating end 121 and the second rotating end 131, the elastic member 165 is compressed to a compressed state. When the external parts such as the connecting rod 200 are removed from the second slot 176, the stopper 1171 automatically releases the lock on the first rotating member 120 and the second rotating member 130 under the action of the elastic member 165 in the compressed state, thereby improving convenience.

[0101] For an optional implementation, please continue to refer to Figures 5 to 10Among them, a second anti-slip hook 178 is provided on the surface of the connecting plate 112 where the limiting member 1171 is not provided. One end of the second anti-slip hook 178 is a second hook portion 1781, and the other end is a second rotating connection portion 1782. The second rotating connection portion 1782 is rotatably connected to the connecting plate 112 to enable the second hook portion 1781 to rotate in the plane of the connecting plate 112 around the second rotating connection portion 1782. When the connecting rod 200 is clamped in the second card slot 176, rotate the second anti-slip hook 178 so that the second hook portion 1781 is hooked to the connecting rod 200 to prevent the connecting rod 200 from slipping out of the second card slot 176.

[0102] When an external part such as the connecting rod 200 is clamped inside the second card slot 176, rotate the second anti-slip hook 178 until the second hook portion 1781 is hooked to the connecting rod 200 to prevent the connecting rod 200 from slipping out of the second card slot 176. When it is necessary to disassemble the connecting rod 200 from the connecting mechanism 100, rotate the second anti-slip hook 178 to a position where the hooking between the second hook portion 1781 and the connecting rod 200 is released, and then the connecting rod 200 can be disassembled from the connecting mechanism 100.

[0103] In the above implementation process, when the connecting rod 200 is clamped in the second card slot 176, the connecting rod 200 is hooked by the second anti-slip hook 178 to prevent the connecting rod 200 from slipping out of the second card slot 176. At the same time, through the restriction of the connecting rod 200 by the second anti-slip hook 178 and the restriction of the limiting member 1171 by the connecting rod 200, the rotation of the first rotating member 120 and the second rotating member 130 is finally restricted by the limiting member 1171. Further improve the stability of the first rotating member 120 and the second rotating member 130 in the restricted state.

[0104] An optional implementation manner, please continue to refer to Figures 5 to 10 Among them, a first flange 210 surrounding the connecting rod 200 is provided on the portion of the connecting rod 200 clamped in the second card slot 176. A second flange 177 extending toward the inside of the second card slot 176 and matching the first flange 210 is provided at the edge of the second card slot 176, and is configured to prevent the connecting rod 200 from sliding along its length direction inside the second card slot 176 by matching with the first flange 210.

[0105] When the first flanges 210 are located at both ends of the connecting rod 200, and the connecting rods 200 are connected in series and clamped in the second card slot 176, the first flanges 210 of the connecting rods 200 can be in flat contact or inserted into each other. When the first flanges 210 of the connecting rods 200 are in flat contact, two second anti-slip hooks 178 are provided on the connecting mechanism 100 at this time, and the ends of the two connecting rods 200 are respectively hooked. When the first flanges 210 of the connecting rods 200 are inserted into each other, only one second anti-slip hook 178 needs to be provided on the connecting mechanism 100 at this time, and hooking the end of one of the connecting rods 200 can prevent it from sliding out of the second card slot 176.

[0106] In the above implementation process, when external parts such as the connecting rod 200 are clamped inside the second card slot 176, through the cooperation between its own first flange 210 and the second flange 177 of the connecting mechanism 100, the connecting rod 200 clamped in the second card slot 176 is prevented from sliding in its length direction, and the stability of the connection between external parts such as the connecting rod 200 and the connecting mechanism 100 is improved.

[0107] An optional implementation manner, please refer to Figures 11 to 13 . Figure 11 FIG. is a schematic structural view of a third connecting mechanism 100 provided by an embodiment of the present application; Figure 12 FIG. is a schematic structural view of a connecting plate in a third connecting mechanism 100 provided by an embodiment of the present application; Figure 13 FIG. is a three-dimensional view when a third connecting mechanism 100 provided by an embodiment of the present application is combined with an external structure. Among them, the connecting rod includes a first connecting rod and a second connecting rod. The first connecting rod and / or the second connecting rod has a flange at its end, and the end of the first connecting rod 220 is detachably connected to the end of the second connecting rod. The flange is used for being clamped in the second card slot 176. First anti-slip sunken platforms 179 surrounding both ends of the second card slot 176 are respectively provided on both sides of the connecting plate. And the opening of the end face of the first anti-slip sunken platform 179 is smaller than the diameter of the ends of the first connecting rod and the second connecting rod.

[0108] In the above implementation process, when the flange of the connecting rod 200 is clamped in the second card slot 176, the side edges of the ends of the first connecting rod 220 and the second connecting rod 230 are restricted by the end face of the first anti-slip sunken platform, so that the flange is prevented from sliding out of the second card slot 176. Moreover, when the flange is clamped in the second card slot 176, by abutting the flange against the bottom surface of the anti-slip sunken platform, the connecting rod 200 is prevented from sliding in its length direction, and the stability of the connection between external parts such as the connecting rod 200 and the connecting mechanism 100 is improved.

[0109] Please refer to Figures 8 - 10 , Figure 8The first schematic diagram of another connection mechanism 100 provided by an embodiment of the present application; Figure 9 The second schematic diagram of another connection mechanism 100 provided by an embodiment of the present application; Figure 10 The schematic diagram of the connecting rod 200 provided by an embodiment of the present application. In an alternative embodiment, the intermediate member 110 includes a rotary connecting shaft 113, and the connecting end portion 111 is disposed around the rotary connecting shaft 113. The rotary connecting shaft 113 penetrates through the first rotary end portion 121 and the second rotary end portion 131, so that the first rotary member 120 and the second rotary member 130 rotate about the rotary connecting shaft 113. First limiting grooves 181 and second limiting grooves 182 are respectively formed on the end faces of the first rotary end portion 121 and the second rotary end portion 131, and the first limiting grooves 181 and the second limiting grooves 182 are used to receive the connecting rod 200. When the first rotary member 120 and the second rotary member 130 rotate to a position where the first limiting groove 181 coincides with the second limiting groove 182, the connecting rod 200 is clamped in the first limiting groove 181 and the second limiting groove 182 to limit the rotation of the first rotary member 120 and the second rotary member 130.

[0110] When the above-mentioned first rotary member 120 and second rotary member 130 rotate to a position where the first limiting groove 181 coincides with the second limiting groove 182, external parts such as the connecting rod 200 are clamped in the first limiting groove 181 and the second limiting groove 182. At this time, the rotation between the first rotary member 120 and the second rotary member 130 is locked, so that their included angle size at the current moment is maintained. Therefore, those skilled in the art can determine the positions of the first limiting groove 181 and the second limiting groove 182 according to the included angle size between the first rotary member 120 and the second rotary member 130 that needs to be maintained in actual manufacturing requirements. The embodiments of the present application do not make specific limitations on this.

[0111] In the above implementation process, the first rotary member 120 and the second rotary member 130 are connected by the rotary connecting shaft 113 to achieve their rotatable connection. At the same time, when the first rotary member 120 and the second rotary member 130 rotate to a position where the first limiting groove 181 coincides with the second limiting groove 182, the connecting member 200 is clamped therein, realizing the locking of the rotation of the first rotary member 120 and the second rotary member 130, and improving the stability of the connection mechanism 100 in this state.

[0112] An alternative embodiment, please refer to Figures 14 to 17 , Figure 14 The first schematic diagram of the fourth connection mechanism 100 provided by an embodiment of the present application; Figure 15 The second schematic diagram of the fourth connection mechanism 100 provided by an embodiment of the present application; Figure 16 The schematic diagram of the fifth connection mechanism 100 provided by an embodiment of the present application;

[0113] Figure 17 This is a schematic structural diagram of the connecting rod provided by the embodiment of the present application. Among them, the first rotating end 121 includes a first connecting portion 1211 rotatably connected to the connecting end 111, and the second rotating end 131 includes two second connecting portions 1311 rotatably connected to the connecting end 111. The first connecting portion 1211 is embedded between the two second connecting portions 1311. The rotating connecting shaft 113 penetrates through the first connecting end 1121 and the second connecting end 1122. The first connecting portion 1211 has a first extending portion 1212 extending along its plane, and the second connecting portion 1311 has two second extending portions 1312 extending along their respective planes. The first limiting groove 181 is provided on the first extending portion 1212, and the second limiting groove 182 is provided on the second extending portion 1312. When the first rotating end 121 and the second rotating end 131 rotate to make the first limiting groove 181 coincide with the second limiting groove 182, the first extending portion 1212 is embedded between the two second extending portions 1312.

[0114] In the above implementation process, since the first rotating member 120 and the second rotating member 130 have a certain thickness, if the rotating connecting shaft 113 simply penetrates the first rotating member 120 and the second rotating member 130 to realize the rotating connection, the thickness of the connecting mechanism 100 will be increased, and then the space occupancy rate of the connecting mechanism 100 will be increased. However, in the above embodiment, the first connecting portion 1211 is embedded between the two second connecting portions 1311 and is respectively connected to the first rotating member 120 and the second rotating member 130, so that the overall thickness of the connecting mechanism 100 is reduced, and then the space occupancy rate of the connecting mechanism 100 is reduced.

[0115] An optional implementation manner, please continue to refer to Figures 14 to 16 . Among them, the connecting rod 200 includes a first connecting rod 220 and a second connecting rod 230. The first connecting rod 220 and the second connecting rod 230 have flanges 240 at their ends. The end of the first connecting rod 220 is detachably connected to the end of the second connecting rod 200. The flange 240 is used to be clamped in the first limiting groove 181 and the second limiting groove 182. On one side surface of the two second extending portions 1312 facing away from the first connecting portion 1211, there are second anti-slip sinking platforms 183 recessed in the direction towards each other. The second anti-slip sinking platform 183 is arranged along the edge of the second limiting groove 182. And the opening of the end surface of the second anti-slip sinking platform 183 is smaller than the diameters of the ends of the first connecting rod 220 and the second connecting rod 230.

[0116] In the above implementation process, when the flange 240 of the connecting rod 200 is clamped in the first limiting groove 181 and the second limiting groove 182, the side edges of the ends of the first connecting rod 220 and the second connecting rod 230 of the second anti-slip sinking platform 183 are restricted by the end face of the slipping sinking platform, preventing the flange 240 from slipping out of the first limiting groove 181 and the second limiting groove 182. At the same time, since the diameter of the flange 240 is smaller than the diameters of the ends of the first connecting rod 220 and the second connecting rod 230, when the flange 240 is clamped in the first limiting groove 181 and the second limiting groove 182, the sliding of the connecting rod 200 in its length direction is prevented, improving the connection stability between the connecting rod 200 and other external parts and the connecting mechanism 100.

[0117] An optional implementation manner is as follows. Please refer to Figure 18 , Figure 18 which is a schematic structural diagram of the tent frame 300 provided by the embodiment of the present application. Among them, the connecting mechanism 100 provided by the present application is configured to form the door frame in the tent frame 300; among them, the middle member 110 in the connecting mechanism 100 forms the end connecting member 1682 in the door frame, and the first rotating member 120 and the second rotating member 130 respectively form the supporting members for supporting the end connecting member 1682.

[0118] In the above implementation process, when configured to form the door frame in the tent frame 300, in the connecting mechanism 100, the first rotating member 120 and the second rotating member 130 are rotatably connected to the middle member 110, enabling the door frame to be retractable and deployable. When the door frame is in the deployed state, the stability of the deployed door frame is improved by restricting the rotation of the first rotating member 120 and the second rotating member 130 through the limiting member 1171 or the limiting groove in the connecting mechanism 100.

[0119] Please continue to refer to Figure 11 , in a preferred implementation manner, the door frame includes a first door frame 320 and a second door frame 330. The connecting mechanism 100 is further used to connect the first door frame 320 and the second door frame 330 through the connecting rod 200.

[0120] Specifically, the support rods 310 are connected by the connecting mechanism 100 to form a portal frame. Those skilled in the art can determine the number of support rods 310 according to the specifications and shape of the tent. The connecting mechanism 100 provided by the present application connects the support rods 310, realizing the foldability and unfoldability of the portal frame, facilitating the storage and rapid use of the portal frame constituting the tent frame 300, and saving the time and labor for assembly. By connecting the connecting mechanisms 100 through the connecting rods 200, the portal frames are longitudinally arranged through the connecting rods 200 to form the tent frame 300. The tent frame 300 may only include the first portal frame 320 and the second portal frame 330, or may also include other portal frames in addition to the first portal frame 320 and the second portal frame 330. Those skilled in the art can also determine the number of portal frames according to the specifications of the tent frame 300.

[0121] To ensure the stability of the portal frame in the unfolded state, the connecting card can be inserted into the overlapping first limiting groove 181 and second limiting groove 182 or the card slot 166 in the connecting mechanism 100 to limit the rotation of the support rod 310. While using the connecting rod 200 to limit the rotation of each support rod 310, the connecting rod 200 connects the connecting mechanisms 100, so that the portal frames are connected together through the connecting rod 200 to form the tent frame 300. Materials are saved by "using one rod for two purposes".

[0122] In the above implementation process, the connecting rod 200 is received by the overlapping first limiting groove 181 and second limiting groove 182 or the card slot 166 in the connecting mechanism 100, realizing the connection of the first portal frame 320 and the second portal frame 330 to form the tent frame 300 or a part of the tent frame 300. At the same time, by clamping the connecting rod 200 in the overlapping first limiting groove 181 and second limiting groove 182 or the card slot 166, the rotation of the first rotating member 120 and the second rotating member 130 constituting the support rod 310 of the portal frame is locked, ensuring the stability of the portal frame in the unfolded state, that is, improving the stability of the tent frame 300. By "using one rod for two purposes", it is avoided that a connecting rod 200 is required when locking the connecting mechanism 100, and a connecting rod 200 is also required to connect the first portal frame 320 and the second portal frame 330 of the tent frame 300.

[0123] The connecting mechanism 100 provided by the present application includes a first rotating member 120 and a second rotating member 130 that can be rotatably connected to an intermediate member 110 and can be connected to external parts such as a tent pole support rod and a connecting rod. When external parts such as a tent pole support rod are connected to the first rotating member 120 and the second rotating member 130, rotatable connection between the external parts is achieved. At the same time, the connecting mechanism 100 realizes the connection of parts other than the parts connected to the first rotating member 120 and the second rotating member 130 by means of external parts such as a connecting rod 200 being snapped into it, and locks the rotation of the first rotating member 120 and the second rotating member 130 through this snapping method, so that the first rotating member 120 and the second rotating member 130 maintain the required included angle, improving the stability of the connecting mechanism 100 in this state, which can be said to kill two birds with one stone. Especially when the connecting mechanism 100 provided by the present application is used for a tent frame 300, the door frame of the tent frame 300 can be retracted, and at the same time, the stability of the tent frame 300 in the unfolded state is ensured.

[0124] The foregoing is only a 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 changes and modifications. 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 connecting mechanism, characterized in that, The connecting mechanism includes an intermediate member, a first rotating member, and a second rotating member; The first rotating member includes a first rotating end portion and a first extending end portion; the second rotating member includes a second rotating end portion and a second extending end portion; The intermediate member includes a connecting end portion that connects the first rotating end portion and the second rotating end portion; wherein, the first rotating member and the second rotating member rotate about the intermediate member as the rotation center through the connecting end portion; The intermediate member further includes a connecting plate; The connecting end portion includes a first connecting end portion and a second connecting end portion located at both ends of the connecting plate; The first rotating end portion is rotatably connected to the first connecting end portion through a first rotating pin; The second rotating end portion is rotatably connected to the second connecting end portion through a second rotating pin; The first rotating member and the second rotating member respectively have inner sides and outer sides located on both sides of the first rotating pin and both sides of the second rotating pin; the first connecting end portion and the second connecting end portion are both provided with limiting blocks, and the limiting blocks have a first limiting end face and a second limiting end face; The first limiting end face is configured to limit the rotation of the first rotating member and the second rotating member in the direction of increasing the included angle therebetween by abutting against the outer side of the first extending end portion and / or the inner side of the first rotating end portion, and the outer side of the second extending end portion and / or the inner side of the second rotating end portion; The second limiting end face is configured to limit the rotation of the first rotating member and the second rotating member in the direction of decreasing the included angle therebetween by abutting against the inner side of the first extending end portion and / or the outer side of the first rotating end portion, and the inner side of the second extending end portion and / or the outer side of the second rotating end portion; The end faces of the first rotating end portion and the second rotating end portion have a second protruding structure; The intermediate member further includes a limiting member slidably disposed between the first connecting end portion and the second connecting end portion; Both ends of the limiting member have limiting portions that can abut against the second protruding structure, and are configured to: limit the rotation of the first rotating member and the second rotating member in the direction of decreasing the included angle therebetween through the abutment of the limiting portions and the second protruding structure.

2. The connecting mechanism according to claim 1, wherein, The intermediate member includes two oppositely disposed connecting plates; The connecting plates face each other with the side connected to the first rotating member and the second rotating member, and are buckled to form the intermediate member.

3. The connecting mechanism according to claim 1, characterized in that, The connecting plate is provided with a first card slot located between the first connecting end portion and the second connecting end portion, and the first card slot is used to receive a connecting rod; The end faces of the first rotating end portion and the second rotating end portion have a first protruding structure; When the first limiting end face abuts against the outer side of the first extending end portion and / or the inner side of the first rotating end portion, and the outer side of the second extending end portion and / or the inner side of the second rotating end portion, and the connecting rod is clamped in the first card slot, the first protruding structures of the first rotating end portion and the second rotating end portion simultaneously abut against the connecting rod to limit the rotation of the first rotating member and the second rotating member in the direction of decreasing the included angle therebetween.

4. The connecting mechanism according to claim 3, characterized in that Wherein, The connecting plate is provided with a first anti-slip hook; One end of the first anti-slip hook is a first hook portion, and the other end is a first rotary connection portion; The first rotary connection portion is rotatably connected to the connection plate, so that the first hook portion can rotate in the plane of the connection plate around the first rotary connection portion; When the connecting rod is clamped in the first card slot, rotate the first anti-slip hook to make the first hook portion hook the connecting rod, so as to prevent the connecting rod from slipping out of the first card slot.

5. The connecting mechanism according to claim 3, characterized in that When the first rotating member rotates around the first rotating pin and the second rotating member rotates around the second rotating pin; The projection of the first convex structure of the first rotating end portion and the second rotating end portion in the plane of the connection plate is located within the connection plate.

6. The connecting mechanism according to claim 1, characterized in that The connection plate is provided with a second card slot located between the first connection end portion and the second connection end portion, and the second card slot is used for receiving the connecting rod; When the connecting rod is clamped in the second card slot, the connecting rod abuts against the middle portion of the limiting member, and makes the limiting member abut against the second convex structure.

7. The connecting mechanism according to claim 6, wherein The limiting member includes a guiding portion; The connection plate is provided with a guiding groove matching the guiding portion; The guiding groove is configured to: by guiding the sliding of the guiding portion along the guiding groove, realize the abutment and avoidance of the limiting portion against the second convex structure; An elastic member is arranged between the guiding groove and the guiding portion, and two ends of the elastic member are respectively connected to the end portion of the guiding portion and the end portion of the guiding groove; When the limiting portion abuts against the second convex structure, the elastic member is in a compressed state; When the limiting portion avoids the second convex structure, the elastic member is in a relaxed state.

8. The connecting mechanism according to claim 6, characterized in that, A second anti-slip hook is arranged on the surface of the connection plate where the limiting member is not provided; One end of the second anti-slip hook is a second hook portion, and the other end is a second rotary connection portion; The second rotary connection portion is rotatably connected to the connection plate, so that the second hook portion can rotate in the plane of the connection plate around the connection portion; When the connecting rod is clamped in the second card slot, rotate the second anti-slip hook to make the second hook portion hook the connecting rod, so as to prevent the connecting rod from slipping out of the second card slot.

9. The connecting mechanism according to claim 6, characterized in that, A first flange surrounding the connecting rod is arranged on the portion of the connecting rod clamped in the second card slot; The edge of the second card slot is provided with a second flange extending towards the inside of the second card slot and matching the first flange, and is configured to: Prevent the connecting rod from sliding along its length direction inside the second card slot by matching with the first flange.

10. The connecting mechanism according to claim 6, characterized in that, The connecting rod includes a first connecting rod and a second connecting rod, and the first connecting rod and / or the second connecting rod has a flange at its end, and the end of the first connecting rod is detachably connected to the end of the second connecting rod; The flange is used for being clamped in the second card slot; Both sides of the connection plate are provided with first anti-slip sinking platforms respectively surrounding both ends of the second card slot; And the opening of the end face of the first anti-slip sinking platform is smaller than the diameters of the ends of the first connecting rod and the second connecting rod.

11. The connecting mechanism according to claim 1, characterized in that, The intermediate member includes a rotary connection shaft, and the connection end portions are arranged around the rotary connection shaft; The rotating connecting shaft penetrates through the first rotating end and the second rotating end, enabling the first rotating member and the second rotating member to rotate around the rotating connecting shaft; First limiting grooves and second limiting grooves are respectively formed on the end faces of the first rotating end and the second rotating end, and the first limiting grooves and the second limiting grooves are used to receive the connecting rod; When the first rotating member and the second rotating member rotate to a position where the first limiting groove coincides with the second limiting groove, the connecting rod is clamped in the first limiting groove and the second limiting groove to limit the rotation of the first rotating member and the second rotating member.

12. The connecting mechanism according to claim 11, characterized in that, The first rotating end includes a first connecting portion rotatably connected to the connecting end portion, and the second rotating end includes two second connecting portions rotatably connected to the connecting end portion; The first connecting portion is embedded between the two second connecting portions; The rotating connecting shaft penetrates through the first connecting end portion and the second connecting end portion; The first connecting portion has a first extending portion extending along its plane, and each of the second connecting portions has two second extending portions extending along their respective planes; The first limiting groove is provided on the first extending portion, and the second extending portion is provided on the second extending portion; When the first rotating end and the second rotating end rotate to a position where the first limiting groove coincides with the second limiting groove, the first extending portion is embedded between the two second extending portions.

13. The connecting mechanism according to claim 12, characterized in that, The connecting rod includes a first connecting rod and a second connecting rod, and the first connecting rod and / or the second connecting rod has a flange at its respective end, and the end of the first connecting rod is detachably connected to the end of the second connecting rod; The flange is used to be clamped in the first limiting groove and the second limiting groove; On the side surface of the two second extending portions facing away from the first connecting portion, second anti-slip sinking platforms recessed towards each other are respectively formed; The second anti-slip sinking platform is arranged along the edge of the second limiting groove; And the opening of the end face of the second anti-slip sinking platform is smaller than the diameters of the ends of the first connecting rod and the second connecting rod.

14. The connecting mechanism according to any one of claims 1-13, characterized in that, The connecting mechanism is configured to form a door frame in a tent frame; Wherein, the intermediate member in the connecting mechanism forms an end connecting component in the door frame, and the first rotating member and the second rotating member respectively form supporting members for supporting the end connecting component.

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