CN220203665U - Lock catch and storage box - Google Patents

Abstract

The utility model provides a lock catch and a storage box; the handle is pivoted on the base, the hook fastener is pivoted on the handle, the handle enables the hook fastener to be locked on the lock catch seat or to be separated from the lock catch seat through rotating relative to the base, the base comprises a limiting part, and the rotating handle is provided with a supporting part; the rotating handle and the torsion spring are respectively assembled to the handle, the abutting part is abutted to the limiting part under the action of the torsion spring, so that the handle and the base are locked, and the abutting part is separated from the limiting part and the handle is unlocked from the base when the rotating handle moves for a preset stroke against the elastic force of the torsion spring; the handle can rotate relative to the base to enable the hook fastener to be buckled on the lock catch seat, and the handle continues to rotate relative to the base to enable the abutting part to abut against the limiting part, so that even if the handle is touched by mistake, unlocking of the lock catch cannot be achieved, the safety of locking of the lock catch is improved, and the locking strength of the lock catch is improved through double-layer locking.

Description

Lock catch and storage box

Technical Field

The utility model relates to the technical field of storage box locking, in particular to a lock catch and a storage box.

Background

The storage bin is a storage device widely used in daily life, and is generally used to store or deposit objects. In order to realize that the storage box body and the box cover are locked or can be opened and closed, the storage box is provided with a lock catch, so that the objects to be stored are conveniently stored in the storage box or the stored objects are conveniently taken out from the storage box.

At present, the lock catch on the storage box is used for locking the box cover and the box body in a guide buckling mode, and the lock catch is used for simplifying the whole structure of the lock catch in a guide buckling mode, so that the manufacturing cost of the storage box is reduced. However, the locking mode of the guiding buckling is not only seriously insufficient in locking strength, and particularly, the locking is very easy to unlock when the buckle is impacted, but also unlock after being touched by mistake easily.

Disclosure of Invention

The utility model aims to solve the technical problems of preventing the lock catch from being unlocked after being touched by mistake and providing the lock catch and the storage box.

The technical scheme of the utility model for solving the technical problems is that the utility model provides a lock catch, which comprises a lock catch seat and a lock hook assembly, wherein the lock hook assembly comprises a base, a hook fastener and a handle, the handle is pivoted on the base, the hook fastener is pivoted on the handle, and the handle enables the hook fastener to be locked on the lock catch seat or to be separated from the lock catch seat through rotating relative to the base, and the lock catch comprises a limiting part, and the lock hook assembly further comprises:

and (3) a torsion spring.

The rotary handle is provided with a propping part.

The handle is characterized in that the rotating handle and the torsion spring are assembled to the handle respectively, the rotating handle is abutted against the abutting portion under the action of the torsion spring, so that the handle and the base are locked, and the abutting portion is separated from the limiting portion and unlocked from the base when the rotating handle overcomes the torque of the torsion spring to rotate for a preset angle.

In one embodiment, two ends of the torsion spring are respectively abutted against the rotating handle and the handle, and when the tail end of the rotating handle rotates towards the direction close to the handle, the abutting part is separated from the limiting part.

In one embodiment, an avoidance space is formed between the limiting part and the handle, and the rotating handle drives the abutting part to rotate towards the handle direction by a preset angle to the avoidance space so that the abutting part is separated from the limiting part.

The base also comprises a lock nose, wherein the lock nose is provided with a lock hole for the lockset to pass through, and the lock hole on the lock nose is exposed to the outer side of the handle when the abutting part abuts against the limiting part.

In one embodiment, the supporting part is a flat hook body which extends downwards from the bottom edge of the rotating handle through the limiting part and is bent; the hook surface of the flat hook body is attached to the lower surface of the limiting part when the abutting part abuts against the limiting part.

In one embodiment, the latch assembly further includes a pivot pin for the torsion spring to nest.

The handle comprises a panel and a first side plate positioned at one side edge of the panel, a first through hole is formed in the first side plate, and the pivot pin is fixed at the first through hole; the head end of the rotating handle is provided with a second through hole, and the rotating handle is assembled to the handle in a mode that the pivot pin is inserted into the second through hole.

The torsion spring is sleeved on the pivot pin, and two ends of the torsion spring are respectively propped against the inner surface of the panel and the upper surface of the handle.

In one embodiment, the pivot pin transitions from each end to form a head for preventing the pivot pin from backing out of the first and second through holes.

In one embodiment, the turning handle end has a push handle extending away from the first side panel and facilitating turning of the turning handle.

In one embodiment, the handle includes an anti-slip portion that transitions from the bottom edge of the handle and is inclined outward, and the surface of the anti-slip portion has anti-slip lines or bumps.

In one embodiment, the device comprises a case cover, a case body and a lock catch according to any one of the preceding claims, wherein the lock catch seat and the base are respectively fixed on the case cover and the case body, and the handle is locked on the lock catch seat through the hook fastener to enable the case cover and the case body to be locked and fixed.

The utility model has the beneficial effects that: the handle can rotate relative to the base to enable the hook fastener to be buckled on the lock catch seat, the handle continues to rotate relative to the base to enable the handle to be buckled on the base, meanwhile, the abutting part abuts against the limiting part, at the moment, unlocking of the lock catch cannot be achieved even if the handle is touched by mistake, safety of locking of the lock catch is improved, and locking strength of the lock catch is also improved by double-layer locking.

Drawings

FIG. 1 is a schematic view of a latch according to one aspect of the present utility model;

FIG. 2 is a schematic view of another orientation of the latch of FIG. 1 according to the present utility model;

FIG. 3 is a schematic view of another angle of the latch of FIG. 1 according to the present utility model;

FIG. 4 is an exploded view of the base and other portions of the latch assembly of FIG. 1 according to the present utility model.

Reference numerals:

1-locking;

10-a lock catch seat; 100-a first mounting hole; 101-hooking grooves;

11-a latch assembly; 110-a base; 1100-transition; 1101-lock nose; 1101 a-locking hole; 1102-a limit part; 1103-second mounting hole; 1104-ear plate; 111-hook fastener; 112-handle; 1120-panel; 1120 a-a limiting aperture; 1121-a first side panel; 1121 a-a first through hole; 1122-a second side panel; 1123-an anti-slip portion; 1123 a-bump; 113-turning the handle; 1130-a holding portion; 1130 a-a second via; 1131—pushing hands; 1132-guiding surfaces; 114-torsion spring; 115-pivot pins.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1, the present utility model provides a lock 1 and a storage box, wherein the lock 1 is mounted on the storage box, and is used for locking or unlocking the lock 1 to lock or separate a box body and a box cover of the storage box.

Referring to fig. 2 and 3, the latch 1 includes a latch base 10 and a latch hook assembly, and the latch hook assembly includes a base 110, a latch member 111 and a handle 112, specifically, the bottom edge of the latch base 10 is bent outwards to form a latch slot 101, and the latch assembly 11 is latched to the latch base 10 and the latch assembly 11 through the latch member 111 and the latch slot 101, so as to realize the latch 1 locking.

Referring to fig. 4, the handle 112 is pivotally connected to the base 110, specifically, two edges of the top of the base 110 vertically transition and extend to form ear plates 1104, and two ends of the rotating shaft penetrate through the two ear plates 1104 and are respectively fixed to two side plates of the handle 112, so as to realize the rotatable connection of the handle 112 to the base 110. In other embodiments, the handle 112 and the base 110 may be rotatably connected by other connection means; the hooking member 111 is pivotally connected to the handle 112, so as to enable the hooking member 111 to rotate relative to the handle 112. The handle 112 is rotated relative to the base 110 to lock the hooking member 111 to the latch base 10 or to release the hooking member from the latch base 10, and the handle 112 is locked to the base 110 when the handle 112 is locked to the base 110, so that the handle 112 can only rotate in a direction away from the base 110 when the handle 112 rotates relative to the base 110, and the hooking member 111 is released from the latch base 10 when the handle 112 rotates relative to the base 110 to an unlocking position (the position of the handle 112 is the unlocking position when the hooking member 111 is released from the latch base 10 by rotating relative to the handle 112). Since the width of the hooking groove 101 is slightly larger than or larger than the diameter of the hooking piece 111, the hooking piece 111 is hooked on the hooking groove 101, and the handle 112 and the base 110 are locked, so that the hooking piece 111 can only rotate a small angle in the hooking groove 101 by rotating relative to the handle 112, and the hooking piece 111 cannot be separated from the latch base 10 due to the locking of the handle 112 and the base 110, and the latch 1 is in a locked state.

It should be noted that, the latch base 10 and the base 110 are respectively fixed on the case cover and the case body, wherein the middle part of the latch base 10 is symmetrically provided with the first mounting holes 100 near the two side edges, so that the latch base 10 is mounted on the case cover through a connecting piece (for example, a screw or a bolt) detachably connected (for example, in threaded connection) with the first mounting holes 100; second mounting holes 1103 are symmetrically formed in a lower middle portion of the base 110 near both side edges thereof so as to facilitate mounting of the base 110 to the case by means of a coupling member (e.g., a screw or bolt) detachably coupled to (e.g., screwed to) the second mounting holes 1103. In other embodiments, the latch base 10 and the base 110 may be detachably connected to the case cover and the case body in other manners. That is, the handle 112 is locked to the latch base 10 through the hook fastener 111 to lock and fix the case cover and the case body; alternatively, the handle 112 is separated from the case cover and the case body by being separated from the latch base 10 by the hooking member 111.

With continued reference to fig. 4, the base 110 includes a limiting portion 1102, specifically, a bottom edge of one side of the base 110 extends to form an irregularly shaped transition portion 1100, and a side of the transition portion 1100 near the side plate (right side plate) of the handle 112 is formed with the limiting portion 1102. In order to prevent the abutting portion 1130 abutting against the limiting portion 1102 from being stopped by the main body portion of the base 110 (described in detail below) during rotation, the transition portion 1100 (the lower surface of the transition portion 1100 is flush with the lower surface of the main body portion of the base 110) forms an upward step structure to the limiting portion 1102. And the shackle assembly further comprises: a torsion spring 114; the handle 113 is turned, and the turning handle 113 is provided with a supporting part 1130, so that the handle 112 and the base 110 can be locked or unlocked by the supporting part 1130 abutting or releasing the abutting of the supporting part 1130 on the limiting part 1102; the turn knob 113 and the torsion spring 114 are respectively fitted to the handle 112 so as to achieve locking of the handle 112 with the base 110 or unlocking of the handle 112 from the base 110 by turning the turn knob 113. Since the handle 112 is fastened to the base 110 when the handle 112 is locked with the base 110, both the lever body and the torsion spring 114 are assembled to the inside of the handle 112. The rotating handle 113 abuts the abutting portion 1130 against the limiting portion 1102 under the action of the torsion spring 114, so that the handle 112 and the base 110 are locked. And the holding portion 1130 is disengaged from the stopper 1102 and unlocks the handle 112 from the base 110 when the rotating handle 113 rotates a preset angle against the torque of the torsion spring 114.

In an embodiment, since the lock is not locked to the lock nose 1101 (the base 110 includes the lock nose 1101 having the lock hole 1101a, the lock passes through the lock hole 1101a to make the handle 112 and the base 110 in a completely locked state, which will be described later in detail), the handle 112 is locked to the base 110 only by buckling the handle 112 to the base 110 (at this time, the handle 112 and the base 110 are in an incompletely locked state), and the handle 112 is easily touched by mistake to rotate relative to the base 110 so as to disengage the hook 111 from the latch base 10, so that the latch 1 is locked only by buckling the handle 112 to the base 110. Based on this, the technical solution of the present utility model solves the above-mentioned technical problems by means of a two-layer locking of the handle 112 and the base 110 (the first locking mode of the handle 112 and the base 110 is that the handle 112 is fastened to the base 110). It is obvious that the second locking manner of the handle 112 and the base 110 is that the handle 112 and the base 110 are locked by the abutting portion 1130 through the limiting portion 1102 (the latch 1 is still in the non-locking state). In order to realize rotatable connection of the handle 112 to the rotating handle 113, two ends of the torsion spring 114 are respectively abutted against the rotating handle 113 (the rotating handle 113 is assembled to the handle 112, which will be described later for details), and when the end of the rotating handle 113 is rotated toward the direction approaching the handle 112, the abutting portion 1130 is separated from the limiting portion 1102, that is, the front end of the rotating handle 113 is rotated toward the direction away from the handle 112 and toward the main body portion of the base 110. In order to prevent the head end of the rotating handle 113 from being stopped by the main body portion of the base 110 when the abutting portion 1130 is not separated or is not completely separated from the stopper 1102, the cross-sectional shape of the head end of the rotating handle 113 is set to be circular or elliptical. In other embodiments, the cross-sectional shape of the head end of the twist grip 113 is not limited.

In a specific embodiment, the base 110 further includes a lock nose 1101, specifically, a lock nose 1101 is formed on a side of the transition portion 1100 opposite to the limit portion 1102, a lock hole 1101a through which a lock passes is formed on an end of the lock nose 1101 (an end portion of the lock nose 1101 connected to the transition portion 1100 is a head end), and the lock hole 1101a on the lock nose 1101 is exposed from the limit hole 1120a to the outside of the handle 112 when the hook fastener 111 is locked to the latch base 10, so that the latch 1 is in a fully locked state through the lock hole 1101a locked on the lock nose 1101 by the lock. It can be understood that the latch 1 needs three layers of locking to achieve complete locking of the latch 1, the three layers of locking of the latch 1 sequentially include that the hook fastener 111 on the handle 112 is hooked on the latch base 10 (first layer of locking), the abutting portion 1130 abuts against the limiting portion 1102 under the premise that the hook fastener 111 on the handle 112 is hooked on the latch base 10, so that the handle 112 is locked with the base 110 (second layer of locking), and the lock is locked with the lock hole 1101a under the premise that the second layer of locking is performed (third layer of locking), that is, the latch 1 is completely locked).

The process of rotating the distal end of the rotation handle 113 toward the direction approaching the knob 112 to disengage the holding portion 1130 from the stopper 1102 will be described in detail below. Specifically, an accommodating groove for accommodating the holding portion 1130 is formed between the lower surface of the limiting portion 1102 and the outer surface of the case, an avoidance space is formed between the limiting portion 1102 and the handle 112, and the rotating handle 113 drives the holding portion 1130 to rotate towards the direction close to the handle 112 by a preset angle to the avoidance space, so that the holding portion 1130 is separated from the limiting portion 1102, that is, the holding portion 1130 moves from the accommodating groove to the avoidance space, so that the holding portion 1130 is separated from the limiting portion 1102.

In one embodiment, in order to make the abutting portion 1130 abut or hook onto the limiting portion 1102, the abutting portion 1130 is a flat hook extending downward from the bottom edge of the rotating handle 113 through the limiting portion 1102 and vertically bent; the hook surface of the flat hook body is attached to the lower surface of the limiting portion 1102 when the abutting portion 1130 abuts against the limiting portion 1102.

In one embodiment, the latch assembly 11 further includes a pivot pin 115 for the torsion spring 114 to nest, and in particular, the pivot pin 115 is generally cylindrical in shape. In other embodiments, the shape of the pivot pin 115 is not limited; the handle 112 includes a panel 1120, a first side plate 1121 and a second side plate 1122 at two side edges of the panel 1120. As is apparent, the panel 1120, the first side plate 1121 and the second side plate 1122 form a receiving cavity, and the handle 112 is fastened to the base 110 to place the base 110 in the receiving cavity. And the first side plate 1121 is provided with a first through hole, and correspondingly, the middle part of the head end of the rotary handle 113 is provided with a second through hole 1130a. Specifically, since the shape of the pivot pin 115 may be substantially cylindrical, the vertical sectional shape of the first through hole and the vertical sectional shape of the second through hole 1130a may be circular, respectively. In other embodiments, the vertical cross-sectional shape of the first via hole and the vertical cross-sectional shape of the second via hole 1130a are not limited. When the rotary handle 113 is assembled to the handle 112, both ends of the pivot pin 115 are respectively inserted into the first and second through holes 1130a, and it is understood that the torsion spring 114 is positioned between the first and second through holes 1130a. Specifically, when the abutting portion 1130 and the limiting portion 1102 are switched between the abutting state and the releasing state, both ends of the torsion spring 114 always abut against the inner surface of the panel 1120 and the upper surface of the handle 112, respectively, so as to realize rotatable connection of the rotating handle 113 to the handle 112.

In a specific embodiment, the pivot pin 115 transitions from each end to form a head for preventing the pivot pin 115 from backing out of the first and second through holes 1130a, respectively, and the head is obviously larger in size (e.g., diameter) than the body portion of the pivot pin 115.

In a specific embodiment, the end of the rotating handle 113 is provided with a pushing handle 1131 extending away from the first side plate 1121 to facilitate the rotating handle 113, and specifically, the pushing handle 1131 is fixedly connected to the bottom edge of the rotating handle 113, so as to facilitate the connection between the rotating handle 113 and the pushing handle 1131.

In one embodiment, the handle 112 includes an anti-slip portion 1123, the anti-slip portion 1123 transitions from the bottom edge of the handle 112 and slopes outwardly, and the surface of the anti-slip portion 1123 has anti-slip grooves or bumps 1123a.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims (9)

1. The utility model provides a hasp, includes hasp seat and latch hook subassembly, just the latch hook subassembly includes the base, colludes fastener and handle, wherein, the handle pin joint in on the base, collude the fastener pin joint in on the handle, just the handle through for the base rotates makes collude the fastener locking in the hasp seat or follow the hasp seat deviate from, its characterized in that, the base includes spacing portion, the latch hook subassembly still includes:

a torsion spring;

the rotary handle is provided with a supporting part;

the handle is characterized in that the rotating handle and the torsion spring are assembled to the handle respectively, the rotating handle is abutted against the abutting portion under the action of the torsion spring, so that the handle and the base are locked, and the abutting portion is separated from the limiting portion and unlocked from the base when the rotating handle overcomes the torque of the torsion spring to rotate for a preset angle.

2. The latch according to claim 1, wherein both ends of the torsion spring are respectively abutted against the rotating handle and the handle, and the abutting portion is separated from the limiting portion when the rotating handle end rotates toward the handle direction.

3. The latch according to claim 2, wherein an avoidance space is provided between the limiting portion and the handle, and the rotating handle drives the abutting portion to rotate toward the handle direction by a preset angle to the avoidance space so that the abutting portion is separated from the limiting portion;

the base also comprises a lock nose, wherein the lock nose is provided with a lock hole for the lockset to pass through, and the lock hole on the lock nose is exposed to the outer side of the handle when the abutting part abuts against the limiting part.

4. A latch according to claim 3, wherein said abutment is a flat hook extending downwardly from a bottom edge of said handle through said stop and being bent; the hook surface of the flat hook body is attached to the lower surface of the limiting part when the abutting part abuts against the limiting part.

5. The shackle of claim 1, wherein the shackle assembly further comprises a pivot pin for the torsion spring to nest;

the handle comprises a panel and a first side plate positioned at one side edge of the panel, a first through hole is formed in the first side plate, and the pivot pin is fixed at the first through hole; the head end of the rotating handle is provided with a second through hole, and the rotating handle is assembled to the handle in a manner that the pivot pin is inserted into the second through hole;

the torsion spring is sleeved on the pivot pin, and two ends of the torsion spring are respectively propped against the inner surface of the panel and the upper surface of the handle.

6. The shackle of claim 5, wherein the pivot pin transitions from each end to form a head for preventing the pivot pin from backing out of the first through hole and the second through hole.

7. The latch of claim 5 wherein said twist grip end has a push handle extending away from said first side panel and facilitating rotation of said twist grip.

8. The latch of claim 1, wherein the handle includes an anti-slip portion that transitions from a bottom edge of the handle and is sloped outward, and wherein a surface of the anti-slip portion has anti-slip lines or bumps.

9. A storage box comprising a box cover, a box body and a lock catch according to any one of claims 1-8, wherein the lock catch seat and the base are respectively fixed on the box cover and the box body, and the handle is locked on the lock catch seat through the hook fastener to enable the box cover and the box body to be locked and fixed.