TWM560502U - Latch structure with locking function - Google Patents

Abstract

The present invention discloses a buckle structure with a locking function, and a pivotable swinging handle is arranged on a base, and the pair of spring arms drive a pair of spring arms to enable the pull rod to enter or leave a hook; The base and the inside of the handle are 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. The locking member is moved forward until the locking portion corresponds to the locking opening, and the locking member is automatically retracted to cause the locking opening and the locking portion to buckle with each other; otherwise, the locking member is pushed forward, The snap-on relationship between the card opening and the buckle portion can be released.

Description

Buckle structure with lock function

This creation is related to the technical field of buckles, especially a buckle structure with a locking function.

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 the present solution is to solve is the inconvenience of locking the lock and the key when the above buckle is in the locked state.

The technical means by which this creation achieves the above objectives:

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 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 this creation:

When the pull rod is fastened to the buckle, the lock and the lock member are pivoted in the direction of the base and continuously pressed, the slope passes through the buckle portion, and the center spring is compressed, the lock member is 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 construction 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

25‧‧‧ refers to the Ministry of Attachment

30‧‧‧Locking parts

31‧‧‧Support plate

32‧‧‧Second cavity

33‧‧‧Flanking

412‧‧ ‧ blocking hook

42‧‧‧second arm

421‧‧ ‧ blocking hook

422‧‧‧ shaft hole

43‧‧‧ Arm spring

131‧‧‧Deduction

20‧‧‧掀

21‧‧‧ top board

22‧‧‧First pocket

23‧‧‧ side panels

231‧‧‧ nail holes

232‧‧‧ pivot hole

24‧‧‧ visor

331‧‧‧ first long hole

332‧‧‧Second long hole

333‧‧‧Bevel

334‧‧‧ card mouth

34‧‧‧Remove Department

40‧‧‧spring arm

41‧‧‧First arm

411‧‧‧ pivot hole

50‧‧‧hook

51‧‧‧ buckle

61‧‧‧ shaft nail

62‧‧‧Center spring

63‧‧‧ pivot

64‧‧‧ Pull rod

The first picture is a combination of the first perspective of the creation.

Figure 2 is a combination of the second perspective of the creation.

Figure 3 is one of the three-dimensional exploded views of the creation.

The fourth picture is the second exploded view of the creation.

Figure 5 is the third exploded view of the creation.

Figure 6 is one of the sketches and actions of the creation.

The seventh picture is the second part of the sketch and action diagram of the creation.

Figure 8 is the third section of the sketch and action diagram of the creation.

Figure 9 is the fourth section of the sketch and action diagram of the creation.

For the convenience of the description, the central idea expressed in the above-mentioned creation content column is expressed by a specific embodiment. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above.

As shown in the first to fifth and eighth figures, the present buckle structure comprises: a base 10, a handle 20, a locking member 30, two spring arms 40, and a hook seat 50;

The base 10 includes a fixing plate 11, a pair of pivoting ears 12, and a pair of locking 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 Set the front and rear positions of 33 separately a first long hole 331 and a second long hole 332; 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 beyond the pushing portion 34, according to The pusher portion 34 is retracted to a position in the handlebar 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. One end of the center spring 62 abuts against 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 shaft holes 422. The two spring arms 40 are respectively located outside the two side plates 23 of the handle 20, and a pivot shaft 63 pivotally positions the first arm 41 and the pivot hole 232 of the handle 20 and the second long hole 332 of the locking member 30. According to this, the locking member 30 is pivoted synchronously with the cymbal 20, and the two spring arms 40 pivotally swings with the pivot 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 press the handle 20 and the locking member 30 toward the fixing plate 11, and the inclined surface 333 slides over the buckle At the same time as the stopper 131, the center spring 62 is compressed, and the locking member 30 is moved forward along the spindle 61 and the pivot 63 by the first long hole 331 and the second long hole 332 until the card The 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 locked in the locking opening 334, such as In Fig. 8, the locking member 30 limits the grip 20 so that the grip 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.

The above description is only for the preferred embodiment of the present invention, and is intended to clarify the features of the present invention, and is not intended to limit the scope of the present embodiment, and the average variation made by those skilled in the art according to the present creation. Changes that are well known to those skilled in the art, and still fall within the scope of this creation.

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 And forming a locking portion respectively for the opposite bending; 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; A beveling surface that can contact the detent portion and a rear opening that can be engaged or disengaged by the detent portion are provided. 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.