Quick release buckle

Abstract

The utility model discloses a quick-release buckle which comprises a first buckle piece, a second buckle piece and a third buckle piece, the first buckle piece is provided with a main body piece and a movable piece which extend along a rotating axis, the main body piece is provided with a clamping groove and a main body piece opening communicated with the clamping groove, and the movable piece is connected with the main body piece and can rotate around the rotating axis between an unlocking position and a locking position; the second fastener is provided with a clamping head, and the clamping head is matched with the clamping groove; when the movable piece is in the unlocking position, the opening of the main body piece is exposed, and the clamping head can be installed in or taken out of the clamping groove through the opening of the main body piece. And when the movable part is in the locking position, the movable part shields the opening of the main body part so as to prevent the clamping head from being separated from the clamping groove. The quick release buckle has the advantages of being simple in structure, low in manufacturing cost and easy and convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connecting device, in particular to a quick release buckle for quickly and detachably connecting two objects. BACKGROUND

[0002] The quick release buckle is widely used in the occasion that needs to quickly connect and separate two objects, for example, connecting photographic equipment such as cameras or mobile phones on the straps of mountaineering bags or schoolbags.

[0003] However, in order to ensure the reliability of the connection and prevent accidental falling, the quick release buckle in the prior art usually sets a complex anti-falling structure. A typical anti-falling structure of the prior art quick release buckle includes a movable lock piece and a spring, which is complex in structure, has many parts, is complicated to assemble, and is high in production cost. SUMMARY

[0004] Therefore, it is necessary to provide a quick release buckle aiming at the problems of complex structure and high cost of the prior art quick release buckle.

[0005] A quick release buckle, comprising:

[0006] A first fastener has a main body and a movable piece extending along a rotation axis, the main body is provided with a clamping groove and a main body opening communicating with the clamping groove, the movable piece is connected with the main body and can rotate around the rotation axis between an unlocked position and a locked position;

[0007] A second fastener has a clamping head, and the clamping head is adapted to the clamping groove;

[0008] When the movable piece is in the unlocked position, the main body opening is exposed, and the clamping head can be loaded into or taken out of the clamping groove through the main body opening; when the movable piece is in the locked position, the movable piece blocks the main body opening to limit the clamping head from falling out of the clamping groove.

[0009] In one embodiment, the main body includes a support part, the support part and the movable piece both extend along the circumferential direction with the rotation axis as the center line, the support part is provided with the main body opening, the movable piece is sleeved outside the support part, and the movable piece is provided with a movable piece opening; when the movable piece is in the unlocked position, the movable piece opening and the main body opening are in communication, and the clamping head can be loaded into or taken out of the clamping groove through the movable piece opening and the main body opening; when the movable piece is in the locked position, the movable piece opening and the main body opening are offset from each other.

[0010] In one of the embodiments, the main body further comprises a first stop ring located outside the first end of the supporting part and a second stop ring located outside the second end of the supporting part, a first annular sliding groove is formed between the first stop ring and the first end of the supporting part, a second annular sliding groove is formed between the second stop ring and the second end of the supporting part, the first end and the second end of the movable part are respectively provided with a first sliding block and a second sliding block, and the first sliding block and the second sliding block of the movable part are respectively slidably accommodated in the first annular sliding groove and the second annular sliding groove.

[0011] In one of the embodiments, the outer side surface of the movable part, the outer side surface of the first stop ring and the outer side surface of the second stop ring are substantially flush.

[0012] In one of the embodiments, the groove bottom of the first annular limiting groove or the second annular limiting groove is provided with a limiting step, the first sliding block or the second sliding block is correspondingly provided with a limiting protrusion, the limiting protrusion is in abutment with the limiting step to limit the rotation angle of the movable part.

[0013] In one of the embodiments, the main body comprises a first part and a second part which are detachably connected, the first part comprises a tail part, the supporting part and the first stop ring, the first end of the supporting part and the first stop ring are connected with the tail part, the second part comprises a connecting head and the second stop ring located outside the connecting head, and the connecting head is detachably connected with the second end of the supporting part.

[0014] In one of the embodiments, the second end of the supporting part is provided with an external thread, the connecting head is provided with an internal thread, and the connecting head and the second end of the supporting part are detachably connected through the external thread and the internal thread.

[0015] In one of the embodiments, the second part is provided with a shoulder strap opening.

[0016] In one of the embodiments, at least one end of the clamping head is hemispherical.

[0017] In one of the embodiments, the second fastener further comprises a connecting line connected with the clamping head, the main body is provided with a wire hole through which the connecting line passes, and the wire hole is in communication with the opening of the main body.

[0018] The quick release buckle described above adopts the mode that the movable part rotates around the rotation axis to realize locking and unlocking, and compared with the existing anti-dropping structure, this design reduces the number of parts, simplifies the overall structure, thereby reducing the manufacturing cost and assembly difficulty. Moreover, locking and unlocking can be realized by rotating the movable part, which is simple and intuitive to operate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view of the first fastener of the quick release buckle in one of the embodiments of the present utility model;

[0020] Figure 2 is a perspective view of the second fastener of the quick release buckle in one of the embodiments of the present utility model;

[0021] Figure 3 is a front view of the first fastener and the second fastener connected together (showing the state when the movable piece is in the unlocked position) ;

[0022] Figure 4 is a sectional view along the line A-A in figure Figure 3 ;

[0023] Figure 5 is a perspective view of the first part of the first fastener shown in figure Figure 1 ;

[0024] Figure 6 is a perspective view of the movable piece of the first fastener shown in figure Figure 1 ;

[0025] Figure 7 is a perspective view of the first fastener and the second fastener connected together (showing the state when the movable piece is in the locked position).

[0026] BRIEF DESCRIPTION OF DRAWINGS:

[0027] 1: first fastener

[0028] 2: second fastener

[0029] 10: main piece

[0030] 11: movable piece

[0031] 100: wire hole

[0032] 101: clamping groove

[0033] 102: main piece opening

[0034] 103: support part

[0035] 104: first stop ring

[0036] 1041: outer side of the first stop ring

[0037] 105: second stop ring

[0038] 1051: outer side of the second stop ring

[0039] 106: first annular sliding groove

[0040] 107: second annular sliding groove

[0041] 108: limiting step

[0042] 109: external thread

[0043] 111: movable member opening

[0044] 112: first slider

[0045] 113: second slider

[0046] 114: outer side surface of movable member

[0047] 115: limiting protrusion

[0048] 12: first part

[0049] 121: tail

[0050] 13: second part

[0051] 131: connecting head

[0052] 132: internal thread

[0053] 133: shoulder strap opening

[0054] 201: clamping head

[0055] 202: connecting line

[0056] X: rotation axis DETAILED DESCRIPTION

[0057] In order to make the above objectives, features and advantages of the present application more apparent, clear and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the specific details described below are only some embodiments of the present application, and the present application can be implemented in many other embodiments different from those described herein. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor shall fall within the scope of protection of the present application.

[0058] In this document, when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "front," "back," "upper," "lower," and the like are used herein for ease of description and do not necessarily limit the position of the components as shown in the figures. It should be understood that the use of these terms is not intended to limit the scope of the present application.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0060] As shown in Figures 1-6 The utility model provides a kind of quick release buckle, mainly including first fastener 1 and second fastener 2.

[0061] First fastener 1:

[0062] First fastener 1 has the main part 10 and movable piece 11 along the rotation axis X extension.

[0063] Main part 10 is provided with clamping groove 101, and the main part opening 102 being communicated with clamping groove 101.Clamping groove 101 is used to accommodate and fix the second fastener 2's clamping head 201.Main part opening 102 is the passage that clamping head 201 is loaded or removed clamping groove 101.

[0064] Movable piece 11 is connected with main part 10, and can rotate around rotation axis X between unlocking position (as shown in Figure 3 ) and locking position (as shown in Figure 7 ) Movable piece 11 is in unlocking position, main part opening 102 is completely or partially exposed, facilitate the loading and removal of clamping head 201.When movable piece 11 rotates to locking position, movable piece 11 will at least partially shield main part opening 102, to limit clamping head 201 from clamping groove 101 accidentally come out, realize locking function.

[0065] Second fastener 2:

[0066] Second fastener 2 has clamping head 201.The shape and size of clamping head 201 are adapted to the clamping groove 101 on the main part 10 of first fastener 1, can be firmly clamped into clamping groove 101.

[0067] Working principle:

[0068] In use, the first fastener 1 is fixed on one object (such as a backpack), and the second fastener 2 is fixed on another object (such as a camera or a mobile phone), when the two objects need to be connected, the movable part 11 is rotated to the unlocking position, and the main part opening 102 is exposed. Then the clamping head 201 of the second fastener 2 is inserted into the clamping groove 101 of the first fastener 1 through the main part opening 102. After being inserted into position, the movable part 11 is rotated to the locking position, and the movable part 11 blocks the main part opening 102, preventing the clamping head 201 from being taken out of the clamping groove 101, thereby realizing the quick connection of the first fastener 1 and the second fastener 2. When the two objects need to be separated, the movable part 11 is only rotated back to the unlocking position, and then the clamping head 201 is taken out of the clamping groove 101.

[0069] In one embodiment, the main part 10 includes a support part 103. The support part 103 and the movable part 11 both extend in the circumferential direction with the rotation axis X as the center line, and can be, for example, cylindrical or approximately cylindrical structures. The main part opening 102 is provided on the support part 103. The movable part 11 is in a cylindrical structure, is sleeved outside the support part 103, and the movable part opening 111 is provided on the movable part 11.

[0070] When the movable part 11 is in the unlocking position, the movable part opening 111 and the main part opening 102 are aligned in the circumferential direction and form a channel for the clamping head 201 to pass through, and the clamping head 201 can be smoothly inserted into or taken out of the clamping groove 101 through the movable part opening 111 and the main part opening 102. When the movable part 11 is rotated to the locking position, the movable part opening 111 and the main part opening 102 are offset from each other in the circumferential direction, so that the clamping head 201 cannot be directly taken out of the clamping groove 101, thereby realizing locking.

[0071] As shown in the drawings, Figure 3 In one embodiment, the main part 10 further includes a first stop ring 104 located outside the first end of the support part 103 and a second stop ring 105 located outside the second end of the support part 103. The first stop ring 104 and the first end of the support part 103 form a first annular sliding groove 106, and the second stop ring 105 and the second end of the support part 103 form a second annular sliding groove 107. The first end and the second end of the movable part 11 are respectively provided with a first sliding block 112 and a second sliding block 113. The movable part 11 is slidably accommodated in the first annular sliding groove 106 and the second annular sliding groove 107 through the first sliding block 112 and the second sliding block 113, thereby realizing the connection of the movable part 11 and the main part 10, and allowing the movable part 11 to rotate around the rotation axis X.

[0072] As shown in the drawings, Figure 2 , 3As shown, in one embodiment, the outer side surface 114 of the movable piece 11, the outer side surface 1041 of the first blocking ring 104, and the outer side surface 1051 of the second blocking ring 105 are substantially on the same cylindrical surface, i.e., the outer side surfaces of the three are substantially flush, so that the overall appearance of the quick release buckle is more simple and beautiful.

[0073] As shown in Figure 4 , 5 As shown, in one embodiment, the bottom of the first annular limiting groove 106 (or the second annular limiting groove 107) is provided with a limiting step 108. A limiting protrusion 115 is correspondingly provided on the first sliding block 112 (or the second sliding block 113) of the movable piece 11. When the movable piece 11 rotates, the limiting protrusion 115 will abut against the limiting step 108, thereby limiting the rotation angle of the movable piece 11, ensuring that the movable piece 11 can only rotate between the unlocked and locked positions, and preventing over-rotation.

[0074] In one embodiment, the main body piece 10 includes a first part 12 and a second part 13 which are detachably connected.

[0075] The first part 12 includes a tail part 121, a support part 103, and a first blocking ring 104. The first end of the support part 103 and the first blocking ring 104 are connected with the tail part 121, and the support part 103 and the tail part 121 form a clamping groove 101.

[0076] The second part 13 includes a connecting head 131 and a second blocking ring 105 located outside the connecting head 131. The connecting head 131 is used to detachably connect with the second end of the support part 103 of the first part 12.

[0077] By designing the main body piece 10 as two detachable parts, the quick release buckle can be conveniently installed or detached on different devices or connecting members.

[0078] Preferably, an external thread 109 is provided on the second end of the support part 103, and an internal thread 132 is provided on the connecting head 131. The second part 13 is screw-connected with the external thread 109 on the second end of the support part 103 through the internal thread 132 on the connecting head 131, realizing detachable connection of the first part 12 and the second part 13. Of course, other detachable connection methods can also be adopted, such as buckle connection, plug-in connection, etc.

[0079] As shown in Figure 1 , in one embodiment, a strap opening 133 is provided on the second part 13. Through the strap opening 133, the second part 13 can be fixed on the straps of a backpack or a schoolbag, facilitating carrying and using the photographic equipment or other articles connected with the first buckle 1. The shape and size of the strap opening 133 can be designed according to actual application requirements.

[0080] In one embodiment, at least one end of the clamping head 201 of the second fastener 2 can be designed as a semispherical shape. The semispherical clamping head 201 has a guiding effect when inserted into the clamping groove 101, making the connection more convenient and smooth. Of course, the clamping head 201 can also be designed in other shapes, such as a cylindrical shape, an oval shape, etc.

[0081] In one embodiment, the second fastener 2 can also include a connecting line 202. The connecting line 202 is connected with the clamping head 201, and the main body 10 is provided with a line hole 100 for the connecting line 202 to pass through, and the line hole 100 is in communication with the main body opening 102. Through the connecting line 202, the second fastener 2 can be connected to the article that needs to be quickly disassembled, such as a camera or a mobile phone, etc. The design of the line hole 100 facilitates the passage of the connecting line 202, and is in communication with the main body opening 102, which does not affect the normal insertion and removal of the clamping head 201.

[0082] The connection mode between the movable part 11 and the main body 10 is not limited to sliding connection, but can also adopt other rotating connection modes, such as realizing the pivotal connection through the rotating shaft and the shaft hole.

[0083] The detachable connection mode between the two parts of the main body 10 is not limited to threaded connection, but can also adopt other quick disassembly connection modes such as buckle connection, magnetic attraction connection, etc.

[0084] The first stop ring 104 and the second stop ring 105 are not necessarily complete annular structures, but can also be segmented protruding structures, as long as they can realize the limiting effect on the movable part 11.

[0085] The number and position of the limiting steps 108 and the limiting protrusions 115 can be adjusted according to the actual required rotation angle.

[0086] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A quick release buckle characterized by, The application relates to a fastener. The first fastener comprises a main body and a movable part, the main body is provided with a clamping groove and a main body opening communicating with the clamping groove, and the movable part is connected with the main body and can rotate around a rotation axis between an unlocking position and a locking position. The second fastener is provided with a clamping head which is matched with the clamping groove. When the movable part is in the unlocking position, the main body opening is exposed, and the clamping head can be put into or taken out of the clamping groove through the main body opening; when the movable part is in the locking position, the movable part blocks the main body opening to limit the clamping head from being taken out of the clamping groove.

2. The quick release buckle of claim 1, wherein, The main body comprises a supporting part which is coaxial with the rotation axis and extends in a circumferential direction, the supporting part is provided with the main body opening, the movable part is sleeved outside the supporting part, and the movable part is provided with a movable part opening; when the movable part is in the unlocking position, the movable part opening communicates with the main body opening, and the clamping head can be put into or taken out of the clamping groove through the movable part opening and the main body opening; when the movable part is in the locking position, the movable part opening deviates from the main body opening.

3. The quick release buckle of claim 2, wherein, The main body further comprises a first stop ring outside a first end of the supporting part and a second stop ring outside a second end of the supporting part, a first annular sliding groove is formed between the first stop ring and the first end of the supporting part, a second annular sliding groove is formed between the second stop ring and the second end of the supporting part, and the first end and the second end of the movable part are respectively provided with a first sliding block and a second sliding block which are slidably accommodated in the first annular sliding groove and the second annular sliding groove.

4. The quick release buckle of claim 3, wherein, The outer side surface of the movable part, the outer side surface of the first stop ring and the outer side surface of the second stop ring are substantially flush.

5. The quick release buckle of claim 3, wherein, The groove bottom of the first annular sliding groove or the second annular sliding groove is provided with a limiting step, the first sliding block or the second sliding block is correspondingly provided with a limiting protrusion, the limiting protrusion abuts against the limiting step to limit the rotation angle of the movable part.

6. The quick release buckle of claim 3, wherein, The main body comprises a first part and a second part which are detachably connected, the first part comprises a tail part, the supporting part and the first stop ring, the first end of the supporting part and the first stop ring are connected with the tail part, and the second part comprises a connecting head and the second stop ring outside the connecting head, wherein the connecting head is detachably connected with the second end of the supporting part.

7. The quick release buckle of claim 6, wherein, The second end of the supporting part is provided with an external thread, the connecting head is provided with an internal thread, and the connecting head is detachably connected with the second end of the supporting part through the external thread and the internal thread.

8. The quick release buckle of claim 6, wherein, The second part is provided with a strap opening.

9. The quick release buckle of claim 1, wherein, At least one end of the clamping head is hemispherical.

10. The quick release buckle according to any one of claims 1 to 9, wherein, The second fastener further comprises a connecting line connected with the clamping head, the main body is provided with a wire hole through which the connecting line passes, and the wire hole communicates with the main body opening.

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