Folding structure

Abstract

The utility model discloses a folding structure which comprises a first fastener and a second fastener which can be mutually folded, the first fastener and the second fastener are hinged through an arranged overturning assembly, the first fastener is provided with a limiting part, the second fastener is provided with a lock catch assembly, and the lock catch assembly comprises an elastic buckle meshed and matched with the limiting part. The elastic buckle is movably arranged on the second fastener, and when the elastic buckle is meshed with the limiting part, the elastic piece provides continuous elastic force for the elastic buckle, so that the elastic buckle is tightly meshed with the limiting part. Even if a small gap is generated between the first fastener and the second fastener in the axial direction after long-term use, the elastic piece can always abut against the elastic buckle to provide elastic force for the elastic buckle, so that the elastic buckle can be tightly engaged with the limiting part, and the situation that the stability of the first fastener and the second fastener after locking is reduced due to the generated gap can be avoided; normal use of the folding structure is not affected, and the service life of the folding structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical structures, more specifically to a folding structure. Background Art

[0002] Tubular or rod-shaped folding structures are widely used in scenarios such as drone arm folding, portable police enclosure equipment, and portable traffic control facilities. The tubular or rod-shaped folding structure generally includes two fasteners that can be folded against each other, and the two fasteners are locked by a lock. After long-term use, a small gap will be generated in the axial direction of the two fasteners, resulting in reduced locking stability of the lock, affecting the normal use of the tubular or rod-shaped folding structure. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a folding structure, aiming to improve the stability of two fasteners after being locked together, so as to avoid affecting the normal use of the folding structure.

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

[0005] The utility model provides a folding structure, including a first fastener and a second fastener which can be folded with each other, the first fastener and the second fastener are hingedly arranged by a flip assembly, the first fastener is provided with a limiting portion, and the second fastener is provided with a locking assembly, the locking assembly includes a spring buckle engaged with the limiting portion, and an elastic member providing elastic force for the spring buckle, the spring buckle is movably arranged on the second fastener, and when the spring buckle is engaged with the limiting portion, the elastic member provides continuous elastic force for the spring buckle so that the spring buckle tightly bites the limiting portion.

[0006] Furthermore, the spring buckle includes an engaging portion, a hinged portion and a pressing portion, the engaging portion is used to engage with the limiting portion, the hinged portion is hingedly connected to the second fastener, the engaging portion is located in front of the hinge axis between the hinged portion and the second fastener, and the pressing portion is located behind the hinge axis between the hinged portion and the second fastener; when it is necessary to release the engaging state of the spring buckle and the limiting portion, the pressing portion is pressed downward, and when the pressing force provided is greater than the elastic force provided by the elastic member, the engaging portion is detached from the limiting portion.

[0007] Furthermore, the elastic member is a spring, and the elastic member is installed between the spring buckle and the second buckle, the upper end of the elastic member abuts against the pressing portion, and the lower end of the elastic member abuts against the second buckle.

[0008] Furthermore, the second fastener is provided with a mounting groove, a positioning column is provided at the bottom of the mounting groove, the elastic member is sleeved on the positioning column, and the lower end thereof abuts against the bottom of the mounting groove.

[0009] Furthermore, a first arc-shaped chamfered surface is provided on a side of the limiting portion close to the biting portion, and a second arc-shaped chamfered surface is provided on a side of the biting portion close to the limiting portion.

[0010] Further, the flip assembly includes a plurality of fixed protrusions provided at the fastening end of the first fastener and arranged side by side and spaced apart along the width direction of the first fastener, a plurality of movable protrusions provided at the fastening end of the second fastener and arranged side by side along the width direction of the second fastener, a rotating shaft passing through the plurality of fixed protrusions, the plurality of movable protrusions are respectively arranged in a plurality of spacing areas formed between the plurality of fixed protrusions, and the plurality of movable protrusions are rotatably provided on the rotating shaft.

[0011] Further, when the spring buckle and the limiting portion are in an engaged state, the end surface of the buckling end of the first buckle and the end surface of the buckling end of the second buckle are in contact with each other.

[0012] Furthermore, the fastening end of the second fastener is provided with an embedding portion extending along the direction of the first fastener, and when the spring buckle and the limiting portion are in a bite state, the embedding portion is inserted into the first fastener.

[0013] Furthermore, the first fastener and the second fastener are both tubular structures, and when the spring buckle and the limiting portion are in an engaged state, the embedded portion is inserted into the hollow structure of the first fastener.

[0014] Furthermore, the first fastener and the second fastener have the same outer diameter.

[0015] Compared with the prior art, the utility model has the following beneficial effects: a folding structure, comprising a first fastener and a second fastener that can be folded mutually, the first fastener and the second fastener being hingedly arranged through a provided flip assembly, the first fastener being provided with a limiting portion, the second fastener being provided with a locking assembly, the locking assembly comprising a snap button engaged with the limiting portion, and an elastic member providing elastic force for the snap button, the snap button being movably arranged on the second fastener, when the snap button is engaged with the limiting portion, the elastic member providing continuous elastic force for the snap button, so that the snap button tightly bites the limiting portion. Even if a small gap is generated between the first fastener and the second fastener in the axial direction after long-term use, the elastic member can always support the snap button and provide elastic force for it, so that the snap button can tightly bite the limiting portion, thereby avoiding the gap from reducing the stability of the first fastener and the second fastener after locking, and will not affect the normal use of the folding structure, thereby extending the service life of the folding structure.

[0016] 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

[0017] 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.

[0018] Figure 1 A structural schematic diagram of a folding structure provided for a specific embodiment of the utility model (engaged state);

[0019] Figure 2 A structural schematic diagram of a folding structure provided by a specific embodiment of the utility model (non-occlusal state);

[0020] Figure 3 An exploded view of a folding structure provided for a specific embodiment of the utility model;

[0021] Figure 4 The present invention is a schematic structural diagram of a spring buckle in a folding structure provided in a specific embodiment of the present invention.

[0022] Reference numerals

[0023] 1. First fastener; 11. Limiting portion; 111. First arc-shaped chamfered surface; 2. Second fastener; 21. Mounting groove; 211. Positioning column; 22. Embedding portion; 23. Axle rod; 3. Flip assembly; 31. Fixed protrusion; 311. First axial hole; 32. Movable protrusion; 32. Second axial hole; 33. Rotating shaft; 4. Locking assembly; 41. Spring buckle; 411. Engaging portion; 4111. Second arc-shaped chamfered surface; 412. Hinge portion; 4121. Hinge hole; 413. Pressing portion; 42. Elastic member. DETAILED DESCRIPTION

[0024] 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.

[0025] It should be understood that when used in this specification and claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0026] It should also be understood that the terms used in the utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0027] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0028] An embodiment of the utility model provides a folding structure, which can be applied to scenes such as folding of drone arms, portable police enclosure equipment, and portable traffic control facilities.

[0029] like Figure 1-Figure 4 As shown, a folding structure comprises a first fastener 1 and a second fastener 2 which can be folded with each other. The first fastener 1 and the second fastener 2 are hingedly arranged through a flip assembly 3. The first fastener 1 is provided with a limiting portion 11, and the second fastener 2 is provided with a locking assembly 4. The locking assembly 4 comprises a snap button 41 which is engaged with the limiting portion 11, and an elastic member 42 which provides elastic force for the snap button 41. The snap button 41 is movably arranged on the second fastener 2. When the snap button 41 is engaged with the limiting portion 11, the elastic member 42 provides a continuous elastic force for the snap button 41, so that the snap button 41 is tightly engaged with the limiting portion 11. Even if a small gap is generated between the first fastener 1 and the second fastener 2 in the axial direction after long-term use, the elastic member 42 can always support the snap button 41 and provide elastic force for it, so that the snap button 41 can tightly engage with the limiting portion 11, thereby avoiding reducing the stability of the first fastener 1 and the second fastener 2 after locking due to the generated gap, and will not affect the normal use of the folding structure, thereby extending the service life of the folding structure.

[0030] Specifically, the end of the first fastener 1 that engages with the second fastener 2 is called the fastening end of the first fastener 1, and the end of the second fastener 2 that engages with the first fastener 1 is called the fastening end of the second fastener 2. When the spring buckle 41 and the limiting portion 11 are in an engaged state, the end face of the fastening end of the first fastener 1 and the end face of the fastening end of the second fastener 2 just contact each other. The advantage of this arrangement is that it reduces the lateral movement clearance of the folding structure, enhances the stability of the lateral direction of the folding structure, and at the same time, makes the folding structure more compact as a whole.

[0031] Furthermore, if Figure 3-Figure 4 As shown, the spring buckle 41 includes a bite portion 411, a hinge portion 412 and a pressing portion 413. The bite portion 411, the hinge portion 412 and the pressing portion 413 are an integrated molding structure. The bite portion 411 is used to bite and cooperate with the limiting portion 11, and the hinge portion 412 is hingedly connected to the second fastener 2. The bite portion 411 is located in front of the hinge axis of the hinge portion 412 and the second fastener 2, and the pressing portion 413 is located behind the hinge axis of the hinge portion 412 and the second fastener 2. When it is necessary to release the bite state of the spring buckle 41 and the limiting portion 11, press the pressing portion 413 downward, and when the pressing force provided is greater than the elastic force provided by the elastic member 42, the bite portion 411 is separated from the limiting portion 11. The elastic member 42 is a spring, and is installed between the snap button 41 and the second fastener 2 . The upper end of the elastic member 42 abuts against the pressing portion 413 , and the lower end of the elastic member 42 abuts against the second fastener 2 .

[0032] When there is no external force, the elastic member 42 provides an upward elastic force to the pressing portion 413, forcing the biting portion 411 to rotate counterclockwise, so that the biting portion 411 can tightly bite the limiting portion 11 to avoid the problem of unstable biting.

[0033] In this embodiment, the second fastener 2 is provided with an axle rod 23 along its width direction, and the hinge portion 412 is provided with two pivot plates at intervals along the width direction of the second fastener 2. The two pivot plates are provided with hinge holes 4121, and the two pivot plates are rotatably set on the axle rod 23 through the hinge holes 4121 to realize the hinged setting of the spring buckle 41 relative to the second fastener 2.

[0034] Furthermore, if Figure 3-Figure 4 As shown, the side of the limiting portion 11 that is engaged with the bite portion 411 is the first engagement surface, the side of the bite portion 411 that is engaged with the limiting portion 11 is the second engagement surface, the side of the limiting portion 11 close to the bite portion 411 is provided with a first arc chamfered surface 111, and the side of the bite portion 411 close to the limiting portion 11 is provided with a second arc chamfered surface 4111. The first engagement surface is adjacent to the first arc chamfered surface 111, and the second engagement surface is adjacent to the second engagement surface. The advantage of such a setting is that when engagement is required, it is more conducive to the engagement portion 411 to smoothly move from the side of the first arc chamfered surface 111 of the limiting portion 11 to the side of the first engagement surface, and the engagement operation is smoother.

[0035] Furthermore, if Figure 3As shown, the second fastener 2 is provided with a mounting groove 21, a positioning column 211 is provided at the bottom of the mounting groove 21, and the elastic member 42 is arranged vertically, the elastic member 42 is sleeved on the positioning column 211, and its lower end abuts against the bottom of the mounting groove 21. The positioning column 211 plays a role in positioning the elastic member 42 to prevent the elastic member 42 from lateral displacement.

[0036] Furthermore, if Figure 3 As shown, the flip assembly 3 includes a plurality of fixed protrusions 31 provided at the fastening end of the first fastener 1 and arranged side by side and spaced apart along the width direction of the first fastener 1, a plurality of movable protrusions 32 provided at the fastening end of the second fastener 2 and arranged side by side along the width direction of the second fastener 2, a rotating shaft 33 penetrating the plurality of fixed protrusions 31, the plurality of movable protrusions 32 are respectively arranged in a plurality of spacing areas formed between the plurality of fixed protrusions 31, and the plurality of movable protrusions 32 are rotatably provided on the rotating shaft 33.

[0037] In this embodiment, three fixed protrusions 31 are provided at the buckling end of the first fastener 1 near the bottom edge, and the three fixed protrusions 31 are each provided with a first axial hole 311. Two movable protrusions 32 are provided at the buckling end of the second fastener 2 near the bottom edge, and the two movable protrusions 32 are each provided with a second axial hole 32. The two movable protrusions 32 are placed in two spacing areas formed by the three fixed protrusions 31, and the rotating shaft 33 passes through the first axial hole 311 and the second axial hole 32, and the rotating shaft 33, the first axial hole 311 and the second axial hole 32 are coaxially arranged.

[0038] Furthermore, if Figure 3 As shown, the fastening end of the second fastener 2 is provided with an embedded portion 22 extending along the direction of the first fastener 1, and when the spring buckle 41 and the limiting portion 11 are in the bite state, the embedded portion 22 is inserted into the first fastener 1. The embedded portion 22 can not only improve the alignment accuracy of the first fastener 1 and the second fastener 2, but also enhance the overall rigidity of the first fastener 1 and the second fastener 2 after the bite.

[0039] In this embodiment, there are two embedding portions 22 , and the two embedding portions 22 are arranged at intervals along the width direction of the second fastener 2 .

[0040] Furthermore, both the first fastener 1 and the second fastener 2 are tubular structures, and when the spring buckle 41 and the limiting portion 11 are in the bite state, the embedding portion 22 is inserted into the hollow structure of the first fastener 1. The first fastener 1 and the second fastener 2 adopt tubular structures, which can reduce the overall weight of the folding structure to a certain extent, and is more conducive to application in specific scenarios. For example, the folding structure is used as a folding arm of a drone, which can reduce the overall weight of the drone.

[0041] Furthermore, in order to enhance the coordination of the folding structure's appearance and the visual impact of its exterior, the first fastener 1 and the second fastener 2 have the same outer diameter.

[0042] When the first fastener 1 and the second fastener 2 need to be engaged, the second fastener 2 is rotated around the axis of the flip assembly 3 in the direction close to the first fastener 1, and the second arc chamfered surface 4111 of the engaging portion 411 contacts the first arc chamfered surface 111 of the limiting portion 11, and moves along the arc direction of the first arc chamfered surface 111 until the second matching surface of the engaging portion 411 contacts the first matching surface of the limiting portion 11 and forms an abutting relationship, thereby realizing the engagement relationship between the engaging portion 411 and the limiting portion 11, and further realizing the engagement of the first fastener 1 and the second fastener 2. When the engagement of the first fastener 1 and the second fastener 2 needs to be released, the pressing portion 413 of the spring buckle 41 is pressed downward, and when the pressing force provided is greater than the elastic force provided by the elastic member 42, the engaging portion 411 and the limiting portion 11 are separated from each other.

[0043] 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 folding structure, It is characterized in that It includes a first fastener and a second fastener which can be folded with each other, the first fastener and the second fastener are hingedly arranged by a flip assembly, the first fastener is provided with a limiting portion, and the second fastener is provided with a locking assembly, the locking assembly includes a spring buckle engaged with the limiting portion, and an elastic member providing elastic force for the spring buckle, the spring buckle is movably arranged on the second fastener, and when the spring buckle is engaged with the limiting portion, the elastic member provides continuous elastic force for the spring buckle so that the spring buckle tightly bites the limiting portion.

2. A folding structure according to claim 1, It is characterized in that The spring buckle includes a bite portion, a hinge portion and a pressing portion, the bite portion is used to bite and cooperate with the limiting portion, the hinge portion is hingedly connected to the second fastener, the bite portion is located in front of the hinge axis of the hinge portion and the second fastener, and the pressing portion is located behind the hinge axis of the hinge portion and the second fastener; when it is necessary to release the bite state of the spring buckle and the limiting portion, press the pressing portion downward, and when the pressing force provided is greater than the elastic force provided by the elastic member, the bite portion is detached from the limiting portion.

3. A folding structure according to claim 2, It is characterized in that The elastic member is a spring, and the elastic member is installed between the spring buckle and the second buckle. The upper end of the elastic member abuts against the pressing portion, and the lower end of the elastic member abuts against the second buckle.

4. A folding structure according to claim 3, It is characterized in that The second fastener is provided with a mounting groove, a positioning column is provided at the bottom of the mounting groove, the elastic member is sleeved on the positioning column, and the lower end thereof abuts against the bottom of the mounting groove.

5. A folding structure according to claim 2, It is characterized in that A first arc-shaped chamfered surface is provided on one side of the limiting portion close to the biting portion, and a second arc-shaped chamfered surface is provided on one side of the biting portion close to the limiting portion.

6. A folding structure according to any one of claims 1 to 5, It is characterized in that The flip assembly includes a plurality of fixed protrusions provided at the fastening end of the first fastener and arranged side by side and spaced apart along the width direction of the first fastener, a plurality of movable protrusions provided at the fastening end of the second fastener and arranged side by side along the width direction of the second fastener, a rotating shaft penetrating the plurality of fixed protrusions, the plurality of movable protrusions are respectively arranged in a plurality of spacing areas formed between the plurality of fixed protrusions, and the plurality of movable protrusions are rotatably provided on the rotating shaft.

7. A folding structure according to claim 6, It is characterized in that When the spring buckle and the limiting portion are in an engaged state, the end surface of the buckling end of the first buckle and the end surface of the buckling end of the second buckle are in contact with each other.

8. A folding structure according to claim 1, It is characterized in that The buckling end of the second buckle is extended along the direction of the first buckle to be provided with an embedding portion, and when the spring buckle and the limiting portion are in a bite state, the embedding portion is inserted into the first buckle.

9. A folding structure according to claim 8, It is characterized in that The first fastener and the second fastener are both tubular structures. When the spring buckle and the limiting portion are in an engaged state, the embedded portion is inserted into the hollow structure of the first fastener.

10. A folding structure according to claim 9, It is characterized in that The first fastener and the second fastener have the same outer diameter.

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