CN106949364B - Variable diameter quick detach fastener - Google Patents
Variable diameter quick detach fastener Download PDFInfo
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- CN106949364B CN106949364B CN201710378441.9A CN201710378441A CN106949364B CN 106949364 B CN106949364 B CN 106949364B CN 201710378441 A CN201710378441 A CN 201710378441A CN 106949364 B CN106949364 B CN 106949364B
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- main body
- ratchet
- cantilever
- main shaft
- fastening device
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- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/18—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
Abstract
The invention discloses a diameter-variable quick-release fastening device which comprises a main body and a cantilever, wherein the main body is provided with a connecting part for connecting with external equipment, the first end of the main body is hinged with the first end of the cantilever, the second end of the main body is provided with a non-return locking mechanism, the second end of the cantilever is provided with a clamping jaw, and the clamping jaw is matched with the non-return locking mechanism to enable the cantilever and the main body to form an annular hoop structure; when the anti-reverse locking device is used, only one of the main body and the cantilever is arranged at one side of the fastened piece, then the other of the main body and the cantilever bypasses the fastened piece until the clamping claw is contacted with the anti-reverse locking mechanism, at this time, the fastened piece is positioned in the annular hoop structure enclosed by the main body and the cantilever, and finally, the main body and/or the cantilever is pushed until the annular hoop structure is locked by the fastened piece; the device has the advantages of simple structure, portability and operation, capability of realizing stepless adjustment of the inner diameter, stronger flexibility and adaptability, and capability of increasing the adjustment range only by increasing the number of teeth of the clamping jaws, thereby having larger adjustment range.
Description
Technical Field
The invention relates to the technical field of rail transit equipment, in particular to a diameter-variable quick-release fastening device.
Background
With the rise of outdoor sports, people urgently need a small and portable waterproof and shockproof camera to timely record the influence in sports, and the sports camera is produced in the environment. When in use, the motion camera is often fixed on the handlebar of a bicycle or a motorcycle through a fixing bracket, which needs the fixing bracket to be capable of adapting to handlebars with different diameters and being capable of being quickly disassembled and assembled.
However, although the current fixed support can be adjusted within a certain range, the adjustment range is limited, a part of the fixed support can be adjusted only by being equipped with a plurality of components, the fixed support is inconvenient to carry and operate, and the part of the fixed support can be adjusted only by limited gears, so that the flexibility and the adaptability are poor.
Therefore, how to improve the structure of the fixing bracket, so that the fixing bracket has a simple structure, is convenient to carry and operate, can be adjusted in a larger range, has stronger flexibility and adaptability, and becomes an important technical problem to be solved by technical personnel in the field.
Disclosure of Invention
In view of this, the present invention provides a quick-release fastening device with a variable diameter, so as to achieve the purposes of simple structure, portability, easy operation, capability of adjustment in a large range, and strong flexibility and adaptability.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a variable diameter quick detach fastener, includes main part and cantilever, be provided with in the main part and be used for the connecting portion of being connected with external equipment, the first end of main part with the first end of cantilever is articulated, the second end of main part is provided with ends contrary locking mechanism, the second end of cantilever is provided with the jack catch, the jack catch be used for with end contrary locking mechanism cooperation makes the cantilever with the main part encloses into annular staple bolt structure.
Preferably, the main part with still articulated on one of cantilever have two support arms, be formed with on the main part with another of cantilever be used for with two support arm complex track, two the support arm can with the track cooperation is drawn close each other in order to be laminated with by the fastener.
Preferably, one of the main body and the cantilever is further provided with a first cushion between the two support arms, and two wings of the first cushion respectively abut against the two support arms, so that the two support arms have a tendency of being away from each other.
Preferably, the other one of the main body and the cantilever is further provided with a second cushion opposite to the first cushion, and when the main body and the cantilever are at the limit position, two ends of the first cushion are closed to two ends of the second cushion under the action of the two support arms to form an annular cushion.
Preferably, the backstop locking mechanism comprises:
a main shaft disposed on the main body to be capable of reciprocating along an axial direction thereof;
the linkage gear is rotatably sleeved with the main shaft and can be meshed with the clamping jaw;
the ratchet piece is sleeved on the spindle, circumferentially fixed with the spindle and capable of moving along with the spindle in the axial direction, one of opposite surfaces of the ratchet piece and the linkage gear is provided with at least one first ratchet tooth, the other surface of the ratchet piece and the linkage gear is provided with a plurality of second ratchet teeth distributed along the circumferential direction, the first elastic piece is used for enabling the linkage gear to be in close contact with the ratchet piece, when the spindle is located at a first limit position, the first ratchet teeth are meshed with the second ratchet teeth to prevent the clamping jaw from exiting the ratchet locking mechanism, and when the spindle is located at a second limit position, the first ratchet teeth are separated from the second ratchet teeth.
Preferably, the first elastic member is disposed between the main body and the backstop, a step surface is disposed on the spindle, and the backstop is pressed against the step surface by the first elastic member.
Preferably, the non-return locking mechanism further comprises an inner feeding piece and a second elastic piece, the inner feeding piece is arranged on one side, away from the non-return piece, of the linkage gear, the inner feeding piece is sleeved on the main shaft and fixed with the main shaft in the circumferential direction, one of the surfaces, opposite to the linkage gear, of the inner feeding piece is provided with at least one third ratchet, the other surface of the inner feeding piece is provided with a fourth ratchet, when the main shaft is located at a first limit position, the second elastic piece presses the inner feeding piece on the linkage gear, so that the third ratchet is meshed with the fourth ratchet to prevent the clamping jaw from exiting the non-return locking mechanism, and when the main shaft is located at a second limit position, the third ratchet is separated from the fourth ratchet.
Preferably, the backstop locking mechanism further comprises an operating handle connected to one end of the spindle.
Preferably, the operating handle comprises a main body part and a cam part arranged at one end of the main body part, the cam part is hinged with the main shaft, and the main shaft is switched between a first limit position and a second limit position along with the rotation of the cam part.
Preferably, the connecting part is a stud arranged on one side of the main body, which is far away from the cantilever.
According to the technical scheme, the diameter-variable quick-release fastening device comprises a main body and a cantilever, wherein a connecting part used for being connected with external equipment is arranged on the main body, the first end of the main body is hinged with the first end of the cantilever, the second end of the main body is provided with a non-return locking mechanism, the second end of the cantilever is provided with a clamping jaw, and the clamping jaw is used for being matched with the non-return locking mechanism to enable the cantilever and the main body to form an annular hoop structure;
when the anti-return locking device is used, only one of the main body and the cantilever is arranged on one side of the fastened piece, then the other of the main body and the cantilever bypasses the fastened piece until the clamping claw is contacted with the anti-return locking mechanism, the fastened piece is positioned in an annular hoop structure formed by the main body and the cantilever, and finally the main body and the cantilever are pushed until the annular hoop structure is locked by the fastened piece; therefore, the quick-release fastening device with the variable diameter is simple in structure, the adjusting process does not need participation of other parts, the carrying and the operation are convenient, stepless adjustment of the inner diameter can be achieved through the matching of the clamping jaws and the non-return locking mechanism, the flexibility and the adaptability are strong, meanwhile, the adjusting range of the quick-release fastening device is related to the number of teeth of the clamping jaws, the adjusting range can be increased only through increasing the number of teeth, and therefore the quick-release fastening device with the variable diameter can have a large adjusting range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a quick release fastening device with a variable diameter according to an embodiment of the present invention;
FIG. 2 is an exploded view of a quick release fastening device with a variable diameter according to an embodiment of the present invention;
FIG. 3 is a sectional view of a quick release fastening device with a variable diameter according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a quick release fastening device with a variable diameter according to an embodiment of the present invention in a small diameter state;
FIG. 5 is an exploded view of a variable diameter quick release fastening device with a break back locking mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic view of a partial enlarged view of a non-return locking mechanism in the quick release fastening device with a variable diameter according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view of a variable diameter quick release fastener stopping back locking mechanism according to an embodiment of the present invention.
Detailed Description
The invention provides a quick-release fastening device with a variable diameter, which aims to achieve the purposes of simple structure, convenience in carrying and operation, capability of being adjusted in a larger range and higher flexibility and adaptability.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a quick release fastening device with a variable diameter according to an embodiment of the present invention, and fig. 2 is an exploded view of the quick release fastening device with a variable diameter according to an embodiment of the present invention.
The invention provides a diameter-variable quick-release fastening device which comprises a main body 1 and a cantilever 2.
The main body 1 is provided with a connecting portion 3 used for being connected with external equipment, the first end of the main body 1 is hinged to the first end of the cantilever 2, the second end of the main body 1 is provided with a non-return locking mechanism 7, the second end of the cantilever 2 is provided with a clamping jaw 6, and the clamping jaw 6 is used for being matched with the non-return locking mechanism 7 to enable the cantilever 2 and the main body 1 to form an annular hoop structure.
Compared with the prior art, when the quick-release fastening device with the variable diameter is used, only one of the main body 1 and the cantilever 2 needs to be arranged at one side of a fastened piece, then the other of the main body 1 and the cantilever 2 bypasses the fastened piece until the clamping jaw 6 is contacted with the non-return locking mechanism 7, at the moment, the fastened piece is positioned in an annular hoop structure formed by the main body 1 and the cantilever 2 in a surrounding mode, and finally the main body 1 and the cantilever 2 are pushed until the annular hoop structure is locked by the fastened piece; therefore, the quick-release fastening device with the variable diameter is simple in structure, the adjusting process does not need participation of other parts, the carrying and the operation are convenient, stepless adjustment of the inner diameter can be achieved through the matching of the clamping jaws 6 and the non-return locking mechanisms 7, the flexibility and the adaptability are strong, meanwhile, the adjusting range of the quick-release fastening device is related to the number of teeth of the clamping jaws 6, the adjusting range can be increased only through increasing the number of teeth, and therefore the quick-release fastening device with the variable diameter can have a large adjusting range.
As is well known, at the middle and rear sections of the locking process of the above-mentioned quick-release fastening device with variable diameter, the annular hoop structure enclosed by the main body 1 and the cantilever 2 tends to be out of round and gradually tends to be oval, even in a date-pit shape with two small ends and a large middle, which leads to a reduction in the contact area of the quick-release fastening device with variable diameter by the fastener, and affects the fastening effect, in this embodiment of the present invention, please refer to fig. 3 and fig. 4, fig. 3 is a cross-sectional view of the quick-release fastening device with variable diameter provided by the embodiment of the present invention in a large-diameter state, fig. 4 is a cross-sectional view of the quick-release fastening device with variable diameter provided by the embodiment of the present invention in a small-diameter state, one of the main body 1 and the cantilever 2 is further hinged with two support arms 8, and the other of the main body 1 and the cantilever 2 is formed with a track for being matched with the two support arms 8, and the two support arms 8 can be matched with the track to approach each other to be attached to the fastener. In the embodiment of the present invention, as shown in fig. 3, two arms 8 are hinged to the cantilever 2 oppositely, and the track for cooperating with the arm 8 is disposed on the main body 1, in the state shown in fig. 3, the two arms 8 do not enter the track on the main body 1 and abut against the cantilever 2, and as the degree of cooperation between the main body 1 and the cantilever 2 is deepened, as shown in fig. 4, the two arms 8 enter the track and gradually get closer together under the push of the track, thereby increasing the contact area between the quick release fastening device with variable diameter and the fastened member as much as possible.
The inner surfaces of the two arms 8 can be adjusted to form a circular or approximately circular matching surface with the inner surfaces of the main body 1 and the cantilever 2, and in the embodiment of the invention, the two arms 8 are in an ivory structure with two arc-shaped side surfaces and a large end and a small end.
The two support arms 8 may be made of hard materials, such as plastics, metals, etc., or made of soft materials, such as rubber, silica gel, etc., and if the two support arms 8 are made of hard materials as the main body 1 and the cantilever 2, the fastening effect of the variable diameter quick release fastening device is poor, the friction force between the variable diameter quick release fastening device and the fastened member is small, the sliding easily occurs, and the damping effect is poor, therefore, in the embodiment of the present invention, as shown in fig. 3 and 4, one of the main body 1 and the cantilever 2 is further provided with the first cushion 5 between the two support arms 8, two wings of the first cushion 5 respectively abut against the two support arms 8, the first cushion 5 serves to increase the contact area with the fastened member through flexible deformation, increase the friction force, avoid the sliding, and improve the damping effect, and on the other hand, the elasticity and gravity of the first cushion 5 can be used to make the two support arms 8 have a tendency of being away from each other, that the support arms 8 are always pressed against the main body 1 or the cantilever 2 when the support arms 8 do not enter the track.
In the embodiment of the present invention, the other of the main body 1 and the suspension arm 2 is further provided with a second cushion 4 opposite to the first cushion 5, and when the main body 1 and the suspension arm 2 are at the limit position, two ends of the first cushion 5 are closed to two ends of the second cushion 4 under the action of the two support arms 8 to form an annular cushion. The first cushion 5 and the second cushion 4 may be rubber pads or silicone pads, or nylon cloth pads, sponge pads, or the like.
Referring to fig. 5 and 6, fig. 5 is an exploded view of a non-return locking mechanism of a quick release fastening device with a variable diameter according to an embodiment of the present invention, fig. 6 is a partially enlarged schematic view of the non-return locking mechanism of the quick release fastening device with a variable diameter according to an embodiment of the present invention, in an embodiment of the present invention, the non-return locking mechanism 7 includes a main shaft 73, a linkage gear 76, a non-return member 72, and a first elastic member 74, wherein the main shaft 73 is disposed on the main body 1 in a manner of reciprocating along its axial direction; the linkage gear 76 is rotatably sleeved with the main shaft 73 and can be meshed with the claw 6; the ratchet 72 is sleeved on the main shaft 73, circumferentially fixed with the main shaft 73 and capable of moving along the axial direction along with the main shaft 73, at least one first ratchet is arranged on one of the opposite surfaces of the ratchet 72 and the linkage gear 76, a plurality of second ratchets distributed along the circumferential direction are arranged on the other one of the opposite surfaces, the first elastic piece 74 is used for enabling the linkage gear 76 to be in close contact with the ratchet 72, when the main shaft 73 is at a first limit position, the first ratchet is meshed with the second ratchet to prevent the claw 6 from withdrawing from the non-return locking mechanism 7, and when the main shaft 73 is at a second limit position, the first ratchet is separated from the second ratchet.
In the above structure, ratchet 72 may be integrated with spindle 73 or may be separate from spindle 73, when ratchet 72 is integrated with spindle 73, first elastic member 74 should be located between one side of linkage gear 76 far from ratchet 72 and body 1 to press linkage gear 76 toward ratchet 72, and when ratchet 72 is separate from spindle 73, that is, ratchet 72 is axially movable with respect to spindle 73, first elastic member 74 should be located between body 1 and ratchet 72, and spindle 73 is provided with a step surface, and first elastic member 74 presses ratchet 72 against step surface so that ratchet 72 can be lifted up and separated from linkage gear 76 when spindle 73 is at the second limit position, in the embodiment of the present invention, the scheme in which ratchet 72 is separate from spindle 73 is adopted, as shown in fig. 6.
In an initial state, the main shaft 73 is at a first limit position, at this time, the backstop 72 is in close contact with the linkage gear 76 under the action of the first elastic member 74, the first ratchet is meshed with the second ratchet, when the variable-diameter quick-release fastening device is locked, the linkage gear 76 rotates counterclockwise (viewed from top to bottom in fig. 6), at this time, the first ratchet and the second ratchet are matched through two inclined planes, so that the backstop 72 is pushed to move upwards against the thrust of the first elastic member 74, when the backstop 72 moves upwards to a highest point, the first ratchet is separated from the second ratchet, the linkage gear 76 rotates by a distance of one ratchet length, then the ratchet on the backstop 72 crosses the highest point of the previous ratchet on the linkage gear 76 and is re-meshed with the next ratchet on the linkage gear 76, and when the linkage gear 76 has a tendency of clockwise rotation, the first ratchet is matched with a right-angle surface of the second ratchet, and the backstop 72 is locked circumferentially through the main shaft 73, so that the linkage gear 76 cannot rotate clockwise, and a backstop effect is achieved.
If only the effect of stopping the flow is needed to be realized, the check member can also adopt other structures, for example, the check member can be a wedge block with a ratchet, the wedge block is connected to a driving rod through an elastic part and is hinged on the main body, the driving rod presses the wedge block on a linkage gear, the ratchet is matched with the teeth of the linkage gear, when the linkage gear is meshed with a claw, the teeth of the linkage gear are matched with the inclined surfaces of the ratchet to jack the wedge block, at the moment, the rotation of the linkage gear is not influenced by the wedge block, and when the linkage gear rotates reversely, the teeth of the linkage gear are matched with the straight surfaces of the ratchet to jack the wedge block, so that the reverse rotation cannot be realized under the action of the wedge block, and the check function is realized.
When the main shaft 73 is at the first limit position, the claw 6 is mainly matched with the non-return locking mechanism 7 by pushing the main body 1 and/or the cantilever 2, but it is well known that only the matching of the claw 6 and the non-return locking mechanism 7 can be achieved by the above-mentioned manner, and the locking matching of the claw 6 and the non-return locking mechanism 7 can be achieved by rotating the main shaft 73 counterclockwise, as shown in fig. 6, the main shaft 73 is rotated counterclockwise, the right-angle surface of the first ratchet and the second ratchet is matched to push the linkage gear 76 to rotate, so that the locking matching of the main body 1 and the cantilever 2 is achieved, and when the main shaft 73 is rotated clockwise, the inclined surface of the first ratchet and the second ratchet is matched to push the non-return member 72 to move upwards against the elastic force of the first elastic member 74 until the first ratchet and the second ratchet cross the highest point of each other, the linkage gear 76 does not rotate with the non-return member 72, at this time, the rotating shaft can be rotated back to the position at the initial state, so that the continuous locking of the main body 1 and the cantilever 2 is achieved.
If the jaw 6 is to be separated from the non-return locking mechanism 7, the spindle 73 needs to be located at the second limit position, referring to fig. 7, fig. 7 is a cross-sectional view of the variable diameter quick release fastening device provided in the embodiment of the present invention for stopping the non-return locking mechanism, and as can be seen from the figure, the spindle 73 moves upward, and simultaneously, the step surface pushes the non-return member 72 to overcome the elastic force of the first elastic member 74 and move upward at the same time, so that the non-return member 72 is separated from the linkage gear 76, and at this time, the linkage gear 76 is not constrained by the non-return member 72 any more, and can rotate in the counterclockwise direction and the clockwise direction, so that the jaw 6 is separated from the non-return locking mechanism 7.
In order to avoid the single-side stress of the linkage gear 76 and ensure the stress balance of the linkage gear 76, in the embodiment of the invention, the non-return locking mechanism 7 further comprises an inner feeding member 77 and a second elastic member 75, the inner feeding member 77 is arranged on one side of the linkage gear 76 away from the non-return member 72, the inner feeding member 77 is sleeved on the main shaft 73 and is circumferentially fixed with the main shaft 73, at least one third ratchet is arranged on one of the surfaces of the inner feeding member 77 opposite to the linkage gear 76, a fourth ratchet is arranged on the other surface of the inner feeding member 77, when the main shaft 73 is located at the first limit position, the second elastic member 75 presses the inner feeding member 77 on the linkage gear 76 to enable the third ratchet and the fourth ratchet to be meshed so as to prevent the claw 6 from exiting the non-return locking mechanism 7, and when the main shaft 73 is located at the second limit position, the third ratchet and the fourth ratchet are separated. As can be seen from fig. 6, the structures of both sides of the linkage gear 76 are substantially the same, so that the forces applied to both sides of the linkage gear 76 are uniform, and the swing of the linkage spring is avoided.
In order to further optimize the above technical solution, in order to facilitate the rotation of the main shaft 73 and the switching of the main shaft 73 between the first limit position and the second limit position, in the embodiment of the present invention, the non-return locking mechanism 7 further includes an operating handle 71 connected to one end of the main shaft 73, and the operating handle 71 may be fixedly connected to the rotating shaft or may be hinged to the rotating shaft.
In the embodiment of the present invention, the main shaft 73 is switched between the first limit position and the second limit position by a cam structure, the operating handle 71 includes a main body 1 and a cam portion disposed at one end of the main body 1, the cam portion is hinged to the main shaft 73, and the main shaft 73 is switched between the first limit position and the second limit position along with the rotation of the cam portion.
The operation handle 71 will be described in detail with reference to fig. 6 and 7.
As can be seen from the figure, the cam portion of the operating handle 71 includes a first curved surface and a second curved surface which are smoothly connected, in the state shown in fig. 6, the operating handle 71 is substantially perpendicular to the main shaft 73, the first curved surface (proximal end) is in interference fit with the main body 1, the main shaft 73 is located at a first extreme position, when the first ratchet teeth and the second ratchet teeth and the third ratchet teeth and the fourth ratchet teeth are respectively engaged with each other, and the operation handle 71 is perpendicular to the main shaft 73, which facilitates the rotation of the main shaft 73.
In the state shown in fig. 7, the operating handle 71 is substantially coaxial with the main shaft 73, the second curved surface (distal end) is in interference fit with the main body 1, the main shaft 73 is in the second limit position, and at this time, the first ratchet and the second ratchet, and the third ratchet and the fourth ratchet are disengaged, and the pawl 6 can exit the non-return locking mechanism 7.
Therefore, through the operating handle 71, when the fastened piece is locked by the quick-release fastening device with the variable diameter, the operating handle 71 is perpendicular to the main shaft 73, so that the main shaft 73 can rotate conveniently, and the quick-release fastening device with the variable diameter needs to be separated from the fastened piece only by lifting the operating handle 71, so that the operation is simple.
Further optimizing the technical solution, in the embodiment of the present invention, the connection portion 3 is a stud disposed on a side of the main body 1 away from the cantilever 2.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A quick-release fastening device with a variable diameter is characterized by comprising a main body and a cantilever, wherein a connecting part used for being connected with external equipment is arranged on the main body, a first end of the main body is hinged to the first end of the cantilever, a non-return locking mechanism is arranged at a second end of the main body, a clamping jaw is arranged at the second end of the cantilever and used for being matched with the non-return locking mechanism to enable the cantilever and the main body to enclose an annular hoop structure, the non-return locking mechanism comprises a main shaft, a linkage gear, a non-return piece and a first elastic piece, the main shaft can be arranged on the main body in a reciprocating mode along the axial direction of the main shaft, the linkage gear is rotatably sleeved with the main shaft and can be meshed with the clamping jaw, the non-return piece is sleeved on the main shaft and can be circumferentially fixed with the main shaft and can move along with the main shaft along the axial direction, one of the non-return piece and one of the surfaces, which are opposite to the linkage gear, at least one ratchet tooth is arranged on the other ratchet tooth, a plurality of second ratchet teeth are circumferentially distributed on the other ratchet piece, the first elastic piece is used for enabling the linkage gear to be tightly contacted with the linkage gear, when the main shaft is at a first limit position, the first ratchet tooth, the ratchet tooth is meshed with the second ratchet tooth, and the second ratchet tooth, the second ratchet mechanism is separated from the second ratchet tooth, and the second ratchet mechanism when the second ratchet mechanism.
2. The quick release fastening device with variable diameter according to claim 1, wherein one of the main body and the cantilever is further hinged with two support arms, the other of the main body and the cantilever is formed with a track for matching with the two support arms, and the two support arms can match with the track to mutually approach to be jointed with a fastened piece.
3. The quick release fastening device with variable diameter as claimed in claim 2, wherein a first cushion is further provided between the two arms on one of the main body and the cantilever, and two wings of the first cushion respectively abut against the two arms, so that the two arms have a tendency to move away from each other.
4. The quick release fastening device with the variable diameter according to claim 3, wherein a second cushion opposite to the first cushion is further disposed on the other one of the main body and the cantilever, and when the main body and the cantilever are at the limit position, two ends of the first cushion are drawn together by the two arms to form an annular cushion.
5. The quick release fastening device with variable diameter according to any one of claims 1-4, wherein the first elastic member is disposed between the main body and the ratchet, the spindle is provided with a step surface, and the ratchet is pressed on the step surface by the first elastic member.
6. The quick release fastening device with the variable diameter according to any one of claims 1 to 4, wherein the non-return locking mechanism further comprises an inner member and a second elastic member, the inner member is disposed on one side of the linkage gear far away from the non-return member, the inner member is sleeved on the main shaft and fixed with the main shaft in a circumferential direction, one of the surfaces of the inner member opposite to the linkage gear is provided with at least one third ratchet, the other surface of the inner member is provided with a fourth ratchet, when the main shaft is at the first limit position, the second elastic member presses the inner member on the linkage gear to enable the third ratchet to be engaged with the fourth ratchet to prevent the claw from exiting the non-return locking mechanism, and when the main shaft is at the second limit position, the third ratchet is separated from the fourth ratchet.
7. The quick release fastening device with variable diameter as claimed in any one of claims 1-4, wherein the backstop locking mechanism further comprises an operating handle connected to one end of the spindle.
8. The quick release fastening device with variable diameter as claimed in claim 7, wherein the operating handle comprises a main body and a cam part disposed at one end of the main body, the cam part is hinged to the main shaft, and the main shaft is switched between a first limit position and a second limit position along with the rotation of the cam part.
9. The quick release fastening device with a variable diameter according to any one of claims 1 to 4, wherein the connecting portion is a stud disposed on a side of the main body away from the cantilever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710378441.9A CN106949364B (en) | 2017-05-25 | 2017-05-25 | Variable diameter quick detach fastener |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710378441.9A CN106949364B (en) | 2017-05-25 | 2017-05-25 | Variable diameter quick detach fastener |
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| CN106949364A CN106949364A (en) | 2017-07-14 |
| CN106949364B true CN106949364B (en) | 2022-10-28 |
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| CN201710378441.9A Active CN106949364B (en) | 2017-05-25 | 2017-05-25 | Variable diameter quick detach fastener |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108104617B (en) * | 2018-01-26 | 2023-02-28 | 段练 | Escape-proof handcuffs |
| CN108869918A (en) * | 2018-06-21 | 2018-11-23 | 北京无线电测量研究所 | A kind of locking device of water pipe head |
| CN111305668B (en) * | 2018-12-11 | 2023-12-08 | 北京骑胜科技有限公司 | Lock and vehicle |
| CN112128189B (en) * | 2020-07-28 | 2022-05-13 | 浙江农林大学 | Quick bamboo pole connecting device |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2516878A (en) * | 1947-08-05 | 1950-08-01 | Samuel R Neider | Handcuff |
| GB1579730A (en) * | 1976-11-01 | 1980-11-26 | Delaney Gallay Dynamics Ltd | Self-locking fasteners |
| DE2740376C3 (en) * | 1977-09-08 | 1980-06-04 | Fa. A. Raymond, 7850 Loerrach | Elastic clamp bracket for round bars with variable diameters |
| US5305978A (en) * | 1991-12-12 | 1994-04-26 | International Visual Corporation | Arcuate compression clamp |
| US5718582A (en) * | 1995-09-26 | 1998-02-17 | Young Dental Manufacturing | Dental tool chuck |
| JP3648475B2 (en) * | 2001-11-19 | 2005-05-18 | タカノ株式会社 | Clamp device, table with clamp device, and connecting device |
| US8635750B1 (en) * | 2010-06-04 | 2014-01-28 | Mark H. Ginocchio | Self-aligning handling or storing device |
| CA2760240A1 (en) * | 2011-12-02 | 2013-06-02 | Quality Chain Canada Ulc | Ratchet load binder with removable lever |
| KR101267447B1 (en) * | 2011-12-29 | 2013-05-31 | 이주태 | Safety scaffold clamps |
| KR20130142672A (en) * | 2012-06-20 | 2013-12-30 | 공병철 | Manhole locking device |
| ITPD20120298A1 (en) * | 2012-10-12 | 2014-04-13 | Dab Pumps Spa | FASTENING COLLAR FOR PIPES, TANKS AND BODIES WITH CYLINDRICAL PORTIONS IN GENERAL |
| CN206723786U (en) * | 2017-05-25 | 2017-12-08 | 歌尔科技有限公司 | A kind of variable-diameter Quick Release fastener |
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