A fastening clasp

Abstract

The utility model discloses a fixed hasp, including hasp base, board buckle, pull ring, hook, the front end of board buckle is hinged with hasp base through fixed pin, and the rear end of board buckle is equipped with the slot of passing through board buckle, and the hasp base is equipped with the rotatable baffle of cooperation with the slot, when the baffle passes through the slot and rotates to the baffle both ends and presses on board buckle, the rear end of board buckle and hasp base are fixed to each other, can play additional spacing, blocking effect to hasp, effectively prevent hasp loose, make the connection more firm, can better adapt to the complex use scene of existing vibration, external force interference etc.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology. Background Technology

[0002] Lap-and-loop fasteners, as a common connection and locking device, are widely used in industrial equipment, transportation vehicles (such as automobiles and containers), aerospace equipment, and everyday containers (such as suitcases) and cabinet doors. Their main function is to achieve quick and reliable connection and locking between two components, while also facilitating unlocking operations to meet the needs of equipment opening and maintenance.

[0003] With the continuous development of industrial production and the increasing demands for equipment reliability, ease of operation, and adaptability, the performance of fasteners has become particularly important. For example, on equipment subject to significant vibration, ordinary fasteners may loosen or fall off due to vibration.

[0004] Current technology typically uses hook-and-loop fasteners consisting of a basic hook-shaped structure and a corresponding locking seat. Locking is achieved by manually engaging the hook into the locking seat. While simple in structure and low in manufacturing cost, these fasteners have some significant drawbacks. Firstly, the reliability of the locking mechanism is poor; they easily disengage under external forces (such as vibration or impact). Secondly, the locking force is relatively weak, making it difficult to meet the requirements of applications demanding high locking strength.

[0005] Therefore, a new technical solution is needed to solve the above problems. Utility Model Content

[0006] Purpose of the utility model: In view of the above-mentioned shortcomings, this utility model solves the problem of loosening of existing buckle structures due to vibration, external force and other factors, and provides a fixed buckle with a loosening function.

[0007] Technical solution: To solve the above problems, the fastening buckle provided by this utility model can adopt the following technical solution:

[0008] A fixed buckle includes a buckle base, a plate buckle hinged to the buckle base, a pull ring mounted on the plate buckle, and a hook that engages with the pull ring. The front end of the plate buckle is hinged to the buckle base via a fixing pin, and the rear end of the plate buckle has a groove that passes through the plate buckle. The buckle base has a rotatable baffle that engages with the groove. When the baffle passes through the groove and rotates until both ends of the baffle press against the plate buckle, the rear end of the plate buckle and the buckle base are fixed to each other.

[0009] Furthermore, a torsion spring is fitted on the fixing pin, with both ends of the torsion spring abutting against the buckle and the latch base respectively. When the torsion spring is in a free state, the rear end of the buckle is lifted relative to the latch base under the action of the torsion spring.

[0010] Furthermore, the length of the baffle is less than the length of the groove but greater than the width of the groove, and the width of the baffle is less than the width of the groove; the bottom of the baffle is provided with a pivot that is hinged to the buckle base; the diameter of the pivot is less than the width of the groove.

[0011] Compared with the prior art, the fastening buckle provided by this utility model has at least the following beneficial effects:

[0012] This locking buckle, by adding a rotatable baffle, can provide additional limiting and blocking functions for the buckle, effectively preventing the buckle from loosening. This greatly improves the stability and reliability of the locking buckle after connection, making the connection more secure and better adaptable to complex usage scenarios such as vibration and external interference. Attached Figure Description

[0013] Figure 1 This is a perspective view of the fixing buckle of this utility model, showing the state where the pull ring and hook are not fastened.

[0014] Figure 2 This is a three-dimensional exploded view of the fastening buckle of this utility model.

[0015] Figure 3 This is a perspective view of the fixing buckle of this utility model, showing the state in which the pull ring and hook are fastened but the baffle is not in contact with the buckle plate.

[0016] Figure 4 This is a perspective view of the fixing buckle of this utility model, showing the state where the pull ring and hook are not fastened and the baffle is pressing on the buckle plate. Detailed Implementation

[0017] Please see Figure 1 and Figure 2 As shown, this invention discloses a fastening buckle, including a buckle base 1, a plate buckle 2 hinged to the buckle base 1, a pull ring 3 mounted on the plate buckle 2, and a hook 4 that engages with the pull ring 3. The front end of the plate buckle 2 is hinged to the buckle base 1 by a fixing pin 5. Specifically, the front end of the plate buckle 2 has downwardly extending upper connecting portions on both sides, and the upper connecting portions have first hinge holes 6; the front end of the buckle base 1 has upwardly extending lower connecting portions on both sides, and the lower connecting portions have second hinge holes 7; the front end of the plate buckle 2 is hinged to the buckle base 1 by the fixing pin 5 passing through both the first hinge hole 6 and the second hinge hole 7.

[0018] The rear end of the pull ring 3 is hinged to the buckle 2. Specifically, the buckle 2 is provided with a third hinge hole 8 for the rear end of the pull ring 3 to pass through, and the third hinge hole 8 is located after the first hinge hole 6.

[0019] The rear end of the snap fastener 2 has a through groove 9, which is located after the third hinge hole 8. The snap fastener base 1 has a rotatable baffle 10 that mates with the groove 9. The length of the baffle 10 is less than the length of the groove 9 but greater than the width of the groove, and the width of the baffle 10 is less than the width of the groove 9. The bottom of the baffle 10 has a pivot 11 that is hinged to the snap fastener base 1. The diameter of the pivot 11 is less than the width of the groove 9. Thus, both the baffle 10 and the pivot 11 can pass through the groove 9. When the baffle 10 passes through the groove 9 and rotates until both ends of the baffle 10 press against the snap fastener 2, the rear end of the snap fastener 2 is fixed to the snap fastener base 1.

[0020] The operating principle of this fastener is as follows: when the pull ring 3 disengages from the hook 4, the plate buckle 2 can rotate freely relative to the buckle base 1, such as... Figure 1 As shown; when the pull ring 3 is hooked onto the hook 4 and the front end of the pull ring moves backward and engages with the hook 4 by pressing down the plate buckle, the hook 4 and the buckle base 1 are relatively fixed, as shown. Figure 3 As shown, this is the conventional operation method for hook and loop fasteners in the prior art. However, in this invention, by setting a rotatable baffle 10 that cooperates with the groove 9, after the above-mentioned fixing operation is completed, the baffle 10 can be further rotated to press against the buckle 2, providing additional limiting and blocking functions, effectively preventing the hook and loop fastener from loosening, and making the connection between the pull ring 3 and the hook 4 more secure. Figure 4 As shown.

[0021] The above structure can be applied to hook and latches without a torsion spring, as well as hook and latches with a torsion spring. In this embodiment, a hook and latch with a torsion spring is used, such as... Figure 2 As shown, a torsion spring 12 is fitted onto the fixing pin 5, with both ends of the torsion spring 12 abutting against the buckle 2 and the latch base 1, respectively. When the torsion spring 12 is in a free state, the rear end of the buckle 2 is lifted relative to the latch base 1 under the action of the torsion spring 12. The function of the torsion spring 12 is that when the latch is locked, the torsion spring 12 is twisted, and the resulting elastic force can provide a certain preload to the latch, thereby enhancing the locking effect and further reducing the risk of disengagement due to external force.

[0022] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A fastening buckle, comprising a buckle base, a plate buckle hinged to the buckle base, a pull ring mounted on the plate buckle, and a hook engaging with the pull ring, characterized in that, The front end of the plate buckle is hinged to the buckle base by a fixing pin. The rear end of the plate buckle is provided with a groove that passes through the plate buckle. The buckle base is provided with a rotatable baffle that cooperates with the groove. When the baffle passes through the groove and rotates until both ends of the baffle press on the plate buckle, the rear end of the plate buckle and the buckle base are fixed to each other.

2. The stationary fastener of claim 1, wherein A torsion spring is fitted on the fixing pin, with its two ends abutting against the buckle and the latch base, respectively. When the torsion spring is in a free state, the rear end of the buckle is lifted relative to the latch base under the action of the torsion spring.

3. The fastener of claim 1, wherein The length of the baffle is less than the length of the groove but greater than the width of the groove, and the width of the baffle is less than the width of the groove; the bottom of the baffle is provided with a pivot that is hinged to the buckle base; the diameter of the pivot is less than the width of the groove.

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