TWI656275B - Buckle structure with lock function - Google Patents

Abstract

A buckle structure having a locking function, wherein a pivoting swinging handle is disposed on a base, the pair of springs driving a pair of spring arms to allow the pull rod to enter or disengage a hook; the base and the handle The inside of the handle is provided with a front and rear displacement locking member, and the locking member has a sloped surface and a locking opening for contacting and locking with the locking portion of the base; the locking portion is in contact with the inclined surface, and the locking member is Moving forward until the locking portion corresponds to the locking opening, the locking member automatically moves backward to make the locking opening and the locking portion buckle with each other; otherwise, pushing the locking member forward, the card can be released The snap relationship between the mouth and the buckle.

Description

Buckle structure with lock function

The present invention relates to a buckle, and more particularly, the buckle has a lock function that prevents being mistakenly opened.

The buckle is often used to lock the lid and the box of the tool box. A typical buckle includes a hook seat fixed to the cover, and a trigger piece is positioned on the box body. When the trigger piece is pulled, the swing piece can swing toward the hook seat; a torsion coil Around the pivot shaft, a spring leg pulls the trigger piece, so that the trigger piece has a normal state that the hook seat swings; the trigger piece is connected with a buckle ring, and when the trigger piece is opposite to the hook seat The buckle can enter (or detach) the hook seat. When the trigger piece is different from the hook seat, the buckle ring and the hook seat are drawn tightly, and the buckle is latched.

In order to prevent the buckle of the latch from being arbitrarily pulled, a structure for the lock to be locked is provided between the trigger piece and the lower fixed piece. However, the opening and closing of the lock requires a key, and the carrying of the key is inconvenient and inadvertently lost.

What is claimed in the present invention is the inconvenience of locking the lock and the key when the buckle is in the locked state.

The technical means for achieving the above object: a buckle structure having a locking function, comprising a base fixed to a fixed object by a fixing plate; the front end of the base is rotatably connected to a front end of a handle by a shaft nail; The 掀 The rear end of the spring is rotatably connected to the two spring arms, the two spring arms are respectively located on the left and right outer sides of the handle, and the front ends of the two spring arms are connected to a pull rod; a movable object, the hook has a buckle for the buckle rod to be combined or disengaged; the utility model is characterized in that: a pair of lock ears are extended from both sides of the fixing plate of the base and are bent upward; The ends of the locking ear are respectively bent to form a locking portion; a locking member located inside the shank and the base and displaceable back and forth, and a rear end of the locking member is provided with a pushing portion; the locking member Both sides of the two sides are provided with a bevel which can contact the detent and a rear opening for the card to be locked or disengaged.

The embodiment further includes a first receiving slot and a second receiving slot respectively disposed at corresponding positions of the locking member and the handle, and internally accommodating a central spring; the axial direction of the central spring and the handle And the front and rear axial directions of the locking member are parallel; one end of the central spring pushes against the handle, and the other end pushes against the locking member.

Preferably, the locking member comprises a supporting plate, a pair of side wings bent downward from both sides of the supporting plate, a first long hole provided on the side wing and respectively for pivoting the shaft pin and the pivot shaft And a second long hole.

Preferably, the first receiving groove and the second receiving groove are respectively disposed on the top plate of the handle and the supporting plate.

Preferably, the rear end of the handle is bent upward to extend a finger attachment portion, the end of the finger attachment portion extending beyond the push portion.

The effect of the present invention is that the pull rod is fastened to the buckle, the lock and the lock member are pivoted in the direction of the base and are continuously pressed, the slope passes through the buckle portion, and the center spring is compressed. The locking member The first elongated hole and the second elongated hole move forward along the pivot pin and the pivot axis until the locking opening corresponds to the locking portion, and the central spring release energy pushes the locking member backward, the buckle The stop is snapped into the card opening.

Applying the push portion to compress the central spring, the locking member is moved forward along the shaft and the pivot axis by the first elongated hole and the second elongated hole until the clamping opening is disengaged from the The latching portion, the latch and the locking member can pivot the shaft as a center.

With the above configuration and actuation, the buckle of the present invention has a lock function that prevents being mistakenly opened, and the lock function does not require the use of a key for opening and closing.

10‧‧‧Base

11‧‧‧ fixed plate

12‧‧‧ 枢 ear

121‧‧‧ nail holes

13‧‧‧Lock ear

131‧‧‧Deduction

20‧‧‧掀

21‧‧‧ top board

25‧‧‧ refers to the Ministry of Attachment

30‧‧‧Locking parts

31‧‧‧Support plate

32‧‧‧Second cavity

33‧‧‧Flanking

331‧‧‧ first long hole

332‧‧‧Second long hole

333‧‧‧Bevel

412‧‧ ‧ blocking hook

42‧‧‧second arm

421‧‧ ‧ blocking hook

422‧‧‧ shaft hole

43‧‧‧ Arm spring

50‧‧‧hook

51‧‧‧ buckle

61‧‧‧ shaft nail

22‧‧‧First pocket

23‧‧‧ side panels

231‧‧‧ nail holes

232‧‧‧ pivot hole

24‧‧‧ visor

334‧‧‧ card mouth

34‧‧‧Remove Department

40‧‧‧spring arm

41‧‧‧First arm

411‧‧‧ pivot hole

62‧‧‧Center spring

63‧‧‧ pivot

64‧‧‧ Pull rod

Figure 1 is a front view of the first perspective of the present invention.

Fig. 2 is a perspective view showing the second perspective combination of the present invention.

Figure 3 is a perspective exploded view of the present invention.

Figure 4 is a perspective exploded view of the present invention.

Figure 5 is a third exploded perspective view of the present invention.

Figure 6 is a schematic view of the profile and action of the present invention.

Figure 7 is a second schematic view of the profile and action of the present invention.

Figure 8 is a third schematic view of the profile and action of the present invention.

Figure 9 is a fourth schematic view of the profile and action of the present invention.

For the convenience of the description, the central idea expressed by the present invention in the column of the above summary of the invention is expressed by the specific embodiments. Various items in the embodiment are in proportions, sizes, and Described by the amount of deformation or displacement, rather than the proportion of the actual components, which is described first.

As shown in the first to fifth and eighth embodiments, the buckle structure of the present invention comprises: a base 10, a handle 20, a locking member 30, two spring arms 40, and a hook 50; the base 10 includes: a fixing plate 11, a pair of pivot ears 12, and a pair of lock ears 13. The pivoting lug 12 and the locking lug 13 are both extended from both sides of the fixing plate 11 and are bent upward. The pivot 12 is bored with a nail hole 121. The front side of the lock ear 13 is further folded to form a latching portion 131.

The handle 20 includes: a top plate 21 having a first recess 22 arched upwardly in a semi-curved shape, and both sides of the top plate 21 are bent downward to form a pair of side plates 23, the front plate 23 A pair of nail holes 231 and a pair of pivot holes 232 are respectively disposed at the rear position; the front end of the top plate 21 is curved downward to form a shutter 24, and the rear end of the top plate 21 is bent upward to form a finger attachment portion 25.

The locking member 30 includes: a supporting plate 31 having a second recess 32 which is recessed downwardly in a semi-curved shape, and both sides of the supporting plate 31 are bent downward to form a pair of side flaps 33, the side flaps A first long hole 331 and a second long hole 332 are respectively disposed at the front and rear positions of the 33; the rear end of the support plate 31 is bent downward to form a pushing portion 34; the end of the finger attaching portion 25 extends Exceeding the push portion 34, the push portion 34 is contracted to a position in the handle 20 that is less likely to be accidentally touched. The rear end of the side flap 33 has a slope 333 and a rearwardly opening card opening 334. The card opening 334 is located above the slope 333.

The locking member 30 is located inside the handle 20 and the base 10. A shaft pin 61 pivotally positions the base 10 and the nail holes 121, 231 of the handle 20 and the first long hole 331 of the locking member 30. The shaft nail 61 The body of the nail is shielded by the shutter 24. The locking member 30 and the handle 20 are pivoted by the shaft 61. The first pocket 22 and the second pocket 32 include a central spring 62. The axial direction of the center spring 62 is parallel to the front and rear axial directions of the handle 20 and the lock member 30. The center spring 62 One end resists the handle 20 and the other end resists the locking member 30.

The two spring arms 40 are identical and bilaterally symmetrical; comprising: a first arm 41 and a second arm 42 , and an arm spring 43 is sleeved on the first arm 41 and the second arm 42: a front end of the first arm 41 is provided with a pivot hole 411, a rear end of the second arm 42 is provided with a stop 421, and a rear end of the second arm 42 is provided with a shaft hole 422; 412, 421 respectively stop the two ends of the arm spring 43; a pull rod 64 is disposed between the two pivot holes 411. The two spring arms 40 are respectively located outside the two side plates 23 of the handlebar 20, and a pivot shaft 63 pivotally positions the shaft hole 422 of the second arm 42 and the pivot hole 232 of the handle 20 and the second of the locking member 30. The long hole 332 is configured to pivotally swing the two spring arms 40 with the pivot shaft 63 as a center.

The hook 50 is a separate component having a hook 51 that engages with the pull rod 64 at one end.

The buckle of the present invention is suitable for a closed lock between a fixed object and a movable object, and the most typical examples are a box (fixed object) and a cover (moving object), but are not limited thereto. The base 10 is locked to the side wall of the fixed object by a plurality of screws (not shown), and the hook 50 is locked to the side wall of the movable object, the two spring arms 40 and the pull rod 64 To the hook 50.

As shown in FIG. 6, in the unlocked state, the user's finger can contact the finger attachment portion 25, and the handle 20 and the locking member 30 are pulled to be opposite to each other with the spindle 61 as a center or It pivots away from the fixing plate 11 of the base 10. The pivoting member is pivoted away from the fixing plate 11 to allow the pulling rod 64 to enter or disengage the hook 51 of the hook 50.

As shown in FIG. 7, when the pull rod 64 enters the buckle hook 51, the handle 20 and the locking member 30 are pivoted away from the hook 50 and toward the fixing plate 11 of the base 10. Directional pressure, at this time, the inclined surface 333 of the locking member 30 contacts the locking portion 131 of the base 10, and continues to the handle 20 The locking member 30 is pressed in the direction of the fixing plate 11. The central surface 62 is compressed while the inclined surface 333 slides over the locking portion 131. The locking member 30 is formed by the first long hole 331 and the second long hole. 332 and move forward along the spindle 61 and the pivot 63 until the locking opening 334 corresponds to the locking portion 131, and the central spring 62 releases the locking member 30 backwards, so that the locking portion 131 is snapped into the card opening 334. As shown in Fig. 8, the locking member 30 limits the latch 20 so that the latch 20 cannot be pulled. Through the action of the spring arm 40, the pull rod 64 that enters the buckle 51 is elastically pulled back to be fastened to the buckle 51, and the entire buckle structure is in a locked state.

As shown in FIG. 9, in order to release the locking state of the handle 20, the user pushes the push portion 34 of the locking member 30 with a finger, and the center spring 62 is compressed, and the locking member 30 is rotated by the first length. The hole 331 and the second long hole 332 are moved forward along the spindle 61 and the pivot 63. After the locking opening 334 is disengaged from the locking portion 131, the handle 20 can be coupled with the locking member 30. Pulling in the direction away from the fixing plate 11 of the base 10, the fastening relationship between the pulling rod 64 and the buckle 51 is released.

Claims (5)

A buckle structure with a locking function includes a base fixed to a fixed object by a fixing plate; a front end of the base is rotatably connected to a front end of a handle by a shaft nail; a rear end of the handle is passed through a pivot The shaft is rotatably connected to the two spring arms, the two spring arms are respectively located on the left and right outer sides of the handle, the front ends of the two spring arms are connected to a pull rod; a hook seat is fixed to a movable object, the hook seat The utility model has a buckle hook for engaging or disengaging the pull rod; wherein: a pair of lock ears are extended from two sides of the fixing plate of the base and are bent upward; the ends of the two lock ears are further The opposite bending forms a locking portion respectively; a locking member located inside the shank and the base and displaceable back and forth, the rear end of the locking member is provided with a pushing portion; both sides of the locking member are provided at the rear end There is a bevel that can contact the detent and a rear opening that allows the detent to be snapped or disengaged. The buckle structure of claim 1 further includes a first receiving slot and a second receiving slot respectively disposed at corresponding positions of the locking member and the handle, respectively a central spring; the axial direction of the central spring is parallel to the tang and the front and rear axial directions of the locking member; one end of the central spring is pushed against the shank and the other end is pushed against the locking member. The buckle structure of claim 2, wherein the locking member comprises a support plate, a pair of side wings bent downward from both sides of the support plate, and the side wings are respectively provided for the shaft And a first long hole and a second long hole of the pin and the pivot. The buckle structure having the locking function according to claim 3, wherein the first receiving groove and the second receiving groove are respectively disposed on the top plate of the handle and the supporting plate. The buckle structure having the locking function according to claim 1, wherein the rear end of the handle is bent upward to extend a finger attachment portion, and the end of the finger attachment portion extends beyond the push portion.