Self-locking folding angle brace joint structure

Abstract

The utility model discloses a self-locking folding angle brace joint structure which comprises a first folding rod, a second folding rod and a self-locking elastic mechanism, one end of the first folding rod is hinged to one end of the second folding rod, the self-locking elastic mechanism comprises a lock catch piece and an elastic piece, the elastic piece is arranged on the first folding rod, and the lock catch piece is hinged to the second folding rod. The locking piece is provided with a first end and a second end which are oppositely arranged, the area between the first end and the second end of the locking piece is hinged to the first folding rod, and the first end of the locking piece is connected with the elastic piece; when the first folding rod and the second folding rod are mutually folded to a preset angle, the second end of the locking piece is meshed with one end of the second folding rod under continuous elastic force provided by the elastic piece. In the using process, the problem of looseness is not prone to occurring, the stability of the structure in the using process is improved, meanwhile, the overall size in the storage process can be greatly reduced, and carrying and transporting are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical structures, in particular to a self-locking folding angle brace joint structure. Background Art

[0002] Corner brace joints are widely used, and are commonly used in outdoor tents, children's football goals, etc. Most existing corner brace joints cannot be folded, which makes them inconvenient to carry. Although there are a few foldable corner brace joints, the folded position is easy to loosen, resulting in poor structural stability. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and to provide a self-locking folding angle brace joint structure to solve the problem of poor stability of the existing foldable angle brace joints.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a self-locking folding angle brace joint structure, including a first folding rod, a second folding rod and a self-locking elastic mechanism, one end of the first folding rod is hinged to one end of the second folding rod, the self-locking elastic mechanism includes a locking member and an elastic member, the elastic member is arranged on the first folding rod, the locking member has a first end and a second end arranged opposite to each other, the area between the first end and the second end of the locking member is hinged to the first folding rod, and the first end of the locking member is connected to the elastic member; when the first folding rod and the second folding rod are folded to a predetermined angle with each other, the second end of the locking member bites with one end of the second folding rod under the continuous elastic force provided by the elastic member.

[0006] Furthermore, a bite opening is provided at the second end of the locking member, and a bite fitting portion is provided at one end of the second folding rod, and the bite fitting portion is inserted into the bite opening so that the first folding rod and the second folding rod are locked at a predetermined folding angle.

[0007] Furthermore, a groove is provided at one end of the second folding rod, and a bottom area of ​​the groove constitutes the engaging portion.

[0008] Furthermore, the upper surface of the engaging portion is an outwardly convex arc surface.

[0009] Furthermore, one end of the first folding rod is provided with a first left connecting plate and a first right connecting plate arranged relatively at an interval, and one end of the second folding rod is provided with a second left connecting plate and a second right connecting plate arranged relatively at an interval, and the first left connecting plate, the first right connecting plate and the second left connecting plate, the second right connecting plate are hingedly connected by a first hinge shaft.

[0010] Furthermore, a connecting plate is provided on the upper side of the second left connecting plate and the second right connecting plate, and the groove is provided in the middle of the connecting plate.

[0011] Furthermore, the first left connecting plate and the first right connecting plate are located in the interval space between the second left connecting plate and the second right connecting plate, and a limiting member is provided in the interval space between the first left connecting plate and the first right connecting plate, and the limiting member includes a limiting portion and abutting portion, one end of the elastic member abuts against the abutting portion, and the other end of the elastic member abuts against the first end of the locking member, and when the first folding rod and the second folding rod are folded to a predetermined angle with each other, the limiting portion and the bite-fitting portion are inserted into the bite mouth together, and the limiting portion is located below the bite-fitting portion.

[0012] Furthermore, the limiting member further includes a fixing portion, the fixing portion is provided with a through hole, and the first hinge shaft is passed through the through hole.

[0013] Furthermore, the first folding rod is provided with a hollow cavity, the top of the hollow cavity is connected to the interval space between the first left connecting plate and the first right connecting plate, the elastic member is arranged in the hollow cavity, and the abutment portion is embedded in the hollow cavity from the top of the hollow cavity.

[0014] Furthermore, a hinge portion is provided in a region between the first end and the second end of the locking member, and the hinge portion, the first left connecting plate, and the first right connecting plate are hingedly connected via a second hinge shaft.

[0015] The beneficial effects of the utility model compared with the prior art are:

[0016] A self-locking folding angle brace joint structure comprises a first folding rod, a second folding rod and a self-locking elastic mechanism, wherein one end of the first folding rod is hinged with one end of the second folding rod, the self-locking elastic mechanism comprises a locking member and an elastic member, the elastic member is arranged on the first folding rod, the locking member has a first end and a second end arranged oppositely, the area between the first end and the second end of the locking member is hinged with the first folding rod, and the first end of the locking member is connected with the elastic member; when the first folding rod and the second folding rod are folded to a predetermined angle, the second end of the locking member is engaged with one end of the second folding rod under the continuous elastic force provided by the elastic member. By means of the self-locking elastic mechanism, the first folding rod and the second folding rod can be locked after being folded to a predetermined angle, and the elastic member can provide continuous elastic force, so that after the first folding rod and the second folding rod are folded into an angle brace shape, the problem of looseness is not easy to occur during use, thereby improving the stability of the structure during use. When not in use and needing to be stored, the locking state can be released by pressing the locking member, and the first folding rod and the second folding rod can be folded into a parallel state, thereby greatly reducing the overall volume during storage, and facilitating carrying and transportation.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a self-locking folding gusset joint structure provided by a specific embodiment of the utility model (folded into a gusset shape);

[0020] Figure 2 A structural schematic diagram of a self-locking folding gusset joint structure provided by a specific embodiment of the utility model (in the stowed state);

[0021] Figure 3 An exploded view of a self-locking folding gusset joint structure provided for a specific embodiment of the utility model;

[0022] Figure 4 Partial decomposition of a self-locking folding gusset joint structure provided for a specific embodiment of the utility model Figure 1 ;

[0023] Figure 5 A partial structural schematic diagram of a self-locking folding gusset joint structure provided by a specific embodiment of the utility model;

[0024] Figure 6 A schematic diagram of the structure of a second folding rod in a self-locking folding gusset joint structure provided by a specific embodiment of the utility model;

[0025] Figure 7 A schematic structural diagram of a first folding rod in a self-locking folding gusset joint structure provided in a specific embodiment of the utility model.

[0026] Reference numerals

[0027] 1. first folding rod; 11. first left connecting plate; 12. first right connecting plate; 13. hollow cavity;

[0028] 2. second folding rod; 21. second left connecting plate; 22. second right connecting plate; 23. connecting plate; 231. groove; 2311. engaging portion;

[0029] 3. Self-locking elastic mechanism; 31. Locking member; 311. Articulated portion; 3111. Articulated hole; 312. Engaging opening; 32. Elastic member;

[0030] 4. Limiting member; 41. Limiting portion; 42. Abutting portion; 43. Fixing portion; 431. Through hole; 44. Buffer cavity;

[0031] 5. The first articulated axis;

[0032] 6. Second articulated axis. DETAILED DESCRIPTION

[0033] The following will be combined with the specific embodiments of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0039] The embodiment of the utility model provides a self-locking folding angle brace joint structure, which can be applied to portable folding sports goods, outdoor leisure folding products and the like.

[0040] like Figure 1-Figure 7 As shown, a self-locking folding angle brace joint structure includes a first folding rod 1, a second folding rod 2 and a self-locking elastic mechanism 3, one end of the first folding rod 1 is hinged to one end of the second folding rod 2, the self-locking elastic mechanism 3 includes a locking member 31 and an elastic member 32, the elastic member 32 is arranged on the first folding rod 1, the locking member 31 has a first end and a second end arranged oppositely, the area between the first end and the second end of the locking member 31 is hinged to the first folding rod 1, and the first end of the locking member 31 is connected to the elastic member 32; when the first folding rod 1 and the second folding rod 2 are folded to a predetermined angle with each other, the second end of the locking member 31 bites with one end of the second folding rod 2 under the continuous elastic force provided by the elastic member 32.

[0041] The self-locking elastic mechanism 3 can lock the first folding rod 1 and the second folding rod 2 after they are folded into a predetermined angle, and the elastic member 32 can provide a continuous elastic force, so that the first folding rod 1 and the second folding rod 2 are not prone to loosening during use after they are folded into a gusset shape, thereby improving the stability of the structure during use. Generally, when the first folding rod 1 and the second folding rod 2 are folded into a gusset shape, the angle between them is 90 degrees. Figure 1 The diagram shows the state where the first folding rod 1 and the second folding rod 2 are folded into a gusset shape, which is the state of use. When not in use and needing to be stored, the locking state can be released by pressing the lock member 31, and the first folding rod 1 and the second folding rod 2 can be folded into a parallel state, thereby greatly reducing the overall volume when stored, making it easier to carry and transport. Figure 2 The diagram shows the first folding rod 1 and the second folding rod 2 in a retracted state.

[0042] The elastic member 32 may be an elastic structure such as a spring or a bellows.

[0043] The first folding rod 1 and the second folding rod 2 are tubular in shape, and can be a square tube, a round tube or a polygonal tube. In order to improve the structural strength of the first folding rod 1 and the second folding rod 2, the first folding rod 1 and the second folding rod 2 are made of sheet metal and are made by an integrated molding process. Such a design can greatly improve the rigidity of the first folding rod 1 and the second folding rod 2.

[0044] like Figure 3 As shown, the second end of the lock member 31 is provided with a bite opening 312, and one end of the second folding rod 2 is provided with a bite matching portion 2311, and the bite matching portion 2311 is inserted into the bite opening 312, so that the first folding rod 1 and the second folding rod 2 are locked at a predetermined folding angle. With such a design, the first folding rod 1 and the second folding rod 2 can be firmly locked together at a predetermined folding angle to prevent loosening due to vibration or external force during use, thereby improving the stability of the structure. Since the second end of the lock member 31 automatically bites under the continuous elastic force provided by the elastic member 32, the operation is simple, and no additional manual locking steps are required, making it more convenient to use. When not in use, it is only necessary to apply an elastic force greater than that provided by the elastic member 32 to the lock member 31 to effectively press the lock member 31 to release the locked state, so that the first folding rod 1 and the second folding rod 2 can be easily folded back to a parallel state, which is convenient for quick storage and unfolding, thereby improving the user experience.

[0045] like Figure 6 As shown, a groove 231 is provided at one end of the second folding rod 2, and the bottom area of ​​the groove 231 constitutes a bite-fitting portion 2311. Such a design can better embed and match the bite opening 312 of the locking member 31, provide a more stable bite effect, and thus enhance the overall stability of the folding structure. Moreover, the design of the groove 231 makes it easier for the user to find and align the bite position during operation, making the operation process more intuitive and convenient, and improving the user experience.

[0046] The upper surface of the engaging portion 2311 is an outwardly convex arc surface. This design makes the engaging portion 2311 and the engaging opening 312 more stable when engaged. In order to further improve the stability of the engagement, the side of the engaging opening 312 in contact with the engaging portion 2311 is an inwardly concave arc surface. The combination of the inwardly concave arc surface and the outwardly convex arc surface can form a more stable engaging structure, avoid sliding and loosening, and provide higher stability and safety.

[0047] like Figure 3As shown, one end of the first folding rod 1 is provided with a first left connecting plate 11 and a first right connecting plate 12 arranged at a relatively interval, and one end of the second folding rod 2 is provided with a second left connecting plate 21 and a second right connecting plate 22 arranged at a relatively interval, and the first left connecting plate 11, the first right connecting plate 12 and the second left connecting plate 21, the second right connecting plate 22 are hingedly connected through a first hinge shaft 5. Such a design enables the load to be more evenly dispersed after assembly, reduces the stress concentration at a single connection point, and thus improves the bearing capacity and durability of the entire structure.

[0048] The first hinge shaft 5 can be a component of a pin, a screw, or a pin.

[0049] like Figure 6 As shown, a connecting plate 23 is provided on the upper side of the second left connecting plate 21 and the second right connecting plate 22, and a groove 231 is provided in the middle of the connecting plate 23. The design of the connecting plate 23 increases the connection strength between the second left connecting plate 21 and the second right connecting plate 22. The groove 231 is directly formed by using the connecting plate 23, and the bottom of the groove 231 is used as the bite fitting part 2311, which can greatly save space and make the overall structure more reasonable and compact.

[0050] like Figure 1 , Figure 4-Figure 5 As shown, the first left connecting plate 11 and the first right connecting plate 12 are located in the interval between the second left connecting plate 21 and the second right connecting plate 22. A limiting member 4 is provided in the interval between the first left connecting plate 11 and the first right connecting plate 12. The limiting member 4 includes a limiting portion 41 and an abutting portion 42. One end of the elastic member 32 abuts against the abutting portion 42, and the other end of the elastic member 32 abuts against the first end of the locking member 31. When the first folding rod 1 and the second folding rod 2 are folded to a predetermined angle, the limiting portion 41 and the bite-matching portion 2311 are inserted into the bite opening 312 together, and the limiting portion 41 is located below the bite-matching portion 2311. By inserting the limiting portion 41 and the bite-matching portion 2311 into the bite opening 312 together, and the limiting portion 41 is located below the bite-matching portion 2311, the limiting portion 41 can limit the second folding rod 2 in the locked state, thereby preventing the second folding rod 2 from automatically rotating around.

[0051] like Figure 3 The stopper 4 further comprises a fixing portion 43, the fixing portion 43 is provided with a through hole 431, and the first hinge shaft 5 is passed through the through hole 431. With such a design, the stopper 4 can be firmly fixed in the structure, preventing the stopper 4 from displacement or loosening during use, thereby improving the stability of the overall structure.

[0052] like Figure 4 , Figure 7As shown, the first folding rod 1 is provided with a hollow cavity 13, the top of the hollow cavity 13 is connected to the interval space between the first left connecting plate 11 and the first right connecting plate 12, the elastic member 32 is arranged in the hollow cavity 13, and the abutment portion 42 is embedded in the hollow cavity 13 from the top of the hollow cavity 13. With such a design, the internal space of the first folding rod 1 can be effectively utilized, and the elastic member 32 and the abutment portion 42 of the stopper 4 are arranged in the hollow cavity 13, thereby avoiding the occupation of the external space and improving the compactness and space utilization efficiency of the overall design. At the same time, placing the elastic member 32 in the hollow cavity 13 can protect the elastic member 32 from the influence of the external environment, such as dust, moisture, etc., reduce the wear and aging of the elastic member 32, and extend its service life. Of course, the design of the hollow cavity 13 makes the elastic member 32 and the abutment portion 42 hidden inside, simplifies the design of the external structure, reduces the number of external components, and makes the overall appearance more concise and beautiful.

[0053] It should be noted that when the first folding rod 1 is a hollow tubular structure, the hollow portion thereof can be used as the hollow cavity 13 without any additional configuration.

[0054] like Figure 3 As shown, a hinge portion 311 is provided in the area between the first end and the second end of the locking member 31, and a hinge hole 3111 is provided on the hinge portion 311. The hinge portion 311, the first left connecting plate 11, and the first right connecting plate 12 are hinged by a second hinge shaft 6, and the second hinge shaft 6 is passed through the hinge hole 3111. The hinge mode of the shaft-hole combination can improve the durability and flexibility of the hinge.

[0055] like Figure 3 As described above, the limiting portion 41 is provided with a buffer cavity 44, which is made of plastic material. The buffer cavity 44 runs through the limiting portion 41 left and right along the width direction of the limiting portion 41. Such a design enables the buffer cavity 44 to play a buffering role when the second folding rod 2 causes excessive extrusion on the limiting member 4, thereby avoiding damage to the limiting member 4, thereby improving the durability of the structure.

[0056] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A self-locking folding gusset joint structure, characterized in that: It includes a first folding rod, a second folding rod and a self-locking elastic mechanism, one end of the first folding rod is hinged to one end of the second folding rod, the self-locking elastic mechanism includes a locking member and an elastic member, the elastic member is arranged on the first folding rod, the locking member has a first end and a second end arranged opposite to each other, the area between the first end and the second end of the locking member is hinged to the first folding rod, and the first end of the locking member is connected to the elastic member; when the first folding rod and the second folding rod are folded to a predetermined angle with each other, the second end of the locking member bites with one end of the second folding rod under the continuous elastic force provided by the elastic member.

2. A self-locking folding gusset joint structure according to claim 1, characterized in that: The second end of the locking member is provided with a bite opening, and one end of the second folding rod is provided with a bite matching portion, and the bite matching portion is inserted into the bite opening so that the first folding rod and the second folding rod are locked at a predetermined folding angle.

3. A self-locking folding gusset joint structure according to claim 2, characterized in that: A groove is provided at one end of the second folding rod, and the bottom area of ​​the groove constitutes the bite-fitting portion.

4. A self-locking folding gusset joint structure according to claim 2, characterized in that: The upper surface of the engaging portion is an outwardly convex arc surface.

5. A self-locking folding gusset joint structure according to claim 3, characterized in that: One end of the first folding rod is provided with a first left connecting plate and a first right connecting plate which are arranged relatively at intervals, and one end of the second folding rod is provided with a second left connecting plate and a second right connecting plate which are arranged relatively at intervals, and the first left connecting plate, the first right connecting plate and the second left connecting plate, the second right connecting plate are hingedly connected through a first hinge shaft.

6. A self-locking folding gusset joint structure according to claim 5, characterized in that: A connecting plate is provided on the upper sides of the second left connecting plate and the second right connecting plate, and the groove is provided in the middle of the connecting plate.

7. A self-locking folding gusset joint structure according to claim 5, characterized in that: The first left connecting plate and the first right connecting plate are located in the interval space between the second left connecting plate and the second right connecting plate. A limiting member is provided in the interval space between the first left connecting plate and the first right connecting plate. The limiting member includes a limiting portion and a contact portion. One end of the elastic member contacts the contact portion, and the other end of the elastic member contacts the first end of the locking member. When the first folding rod and the second folding rod are folded to a predetermined angle, the limiting portion and the bite-fitting portion are inserted into the bite mouth together, and the limiting portion is located below the bite-fitting portion.

8. A self-locking folding gusset joint structure according to claim 7, characterized in that: The limiting member further includes a fixing portion, the fixing portion is provided with a through hole, and the first hinge shaft passes through the through hole.

9. A self-locking folding gusset joint structure according to claim 7, characterized in that: The first folding rod is provided with a hollow cavity, the top of the hollow cavity is connected with the interval space between the first left connecting plate and the first right connecting plate, the elastic member is arranged in the hollow cavity, and the abutting portion is embedded in the hollow cavity from the top of the hollow cavity.

10. A self-locking folding gusset joint structure according to claim 5, characterized in that: A hinged portion is provided in the area between the first end and the second end of the locking member, and the hinged portion, the first left connecting plate, and the first right connecting plate are hingedly connected via a second hinge shaft.

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