CN213503827U

CN213503827U - Lock catch

Info

Publication number: CN213503827U
Application number: CN202022127691.5U
Authority: CN
Inventors: 董振雁
Original assignee: Shenzhen Hecheng Ruida Products Co ltd
Current assignee: Foshan meiruida Intelligent Technology Co.,Ltd.
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-06-22
Anticipated expiration: 2030-09-24

Abstract

The utility model provides a lock catch which is used for locking a box cover and a box body in a lock joint manner, and comprises a lock catch seat which is used for being installed on the box cover and a buckle tongue device which is used for being installed on the box body; the buckle tongue device comprises a fixed seat, a buckle piece and a driving assembly, wherein the buckle piece is connected with the fixed seat in a sliding way, and the driving assembly is assembled on the fixed seat in a rotatable way; the driving assembly comprises a driving bolt, and the lock catch piece is provided with a strip-shaped groove matched with the driving bolt; at least one part of the driving bolt is inserted into the strip-shaped groove, and the driving assembly drives the driving bolt to extrude the side wall of the strip-shaped groove when rotating, so that the locking piece slides to be disengaged or buckled on the locking seat. The utility model discloses a lock joint locking easy operation of hasp is convenient, and need not to apply great strength and can accomplish the lock joint and remove the lock joint, avoids the violence to strike and causes the damage, has prolonged the life of hasp.

Description

Lock catch

Technical Field

The embodiment of the utility model provides a relate to mechanical fixing lock field, more specifically say, relate to a hasp.

Background

A latch is a locking member for locking two objects, such as a storage box, and generally comprises two parts, i.e., a movable part and a fixed part, which are independent of each other. The movable piece is connected to the fixing piece, and the movable piece and the fixing piece are detachably fixed, so that the box bodies and the cover bodies of the two containing boxes are locked together. The locking device is widely applied to storage devices with storage functions, such as tool boxes, because the locking device is very convenient to open and close.

At present, the buckle connection is realized to the hasp of containing box in the market adopts interference fit's mode more, when the hasp promptly, needs exert great pressure on the moving part, makes between moving part and the mounting extrude each other and take place elastic deformation to make the moving part can the joint fix to the mounting. In the same way, when the movable piece is disassembled, a larger pulling force needs to be applied to the movable piece, so that the movable piece and the fixed piece are mutually extruded to generate elastic deformation, and the movable piece can be separated from the fixed piece.

However, the existing lock catch adopting the interference fit mode to realize connection is easy to damage due to the application of large force, the disassembly and assembly operation is also difficult, the problem of blocking is also easy to occur, the lock catch cannot be locked or needs to be violently disassembled, and the stability and the reliability of use are insufficient. In addition, one of the movable member and the fixed member of the conventional latch needs to have elasticity, thereby limiting the designability of the material of the conventional latch.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a to foretell current hasp damage easily, dismouting operation difficulty, appear card dead problem easily, unable hasp or need violence demolish and the stability and the not enough problem of reliability of use, provide a new hasp.

The embodiment of the present invention provides a lock for locking a box cover and a box body, wherein the lock comprises a lock seat for mounting the box cover and a lock tongue device for mounting the box body; the buckle tongue device comprises a fixed seat, a buckle piece and a driving assembly, wherein the buckle piece is connected with the fixed seat in a sliding way, and the driving assembly is assembled on the fixed seat in a rotatable way; the driving assembly comprises a driving bolt, the lock catch piece is provided with a strip-shaped groove matched with the driving bolt, and an included angle between the length direction of the strip-shaped groove and the sliding direction of the lock catch piece is larger than 0 degree; at least one part of the driving bolt is inserted into the strip-shaped groove, and the driving assembly drives the driving bolt to extrude the side wall of the strip-shaped groove when rotating, so that the locking piece slides to be disengaged or buckled on the locking seat.

Preferably, the fixing seat comprises a sliding groove arranged along the sliding direction of the locking piece, and the locking piece is assembled in the sliding groove;

the driving assembly comprises a driving component and a circular mounting plate, a groove matched with the mounting plate is formed in the surface of one side, where the sliding groove is located, of the fixing seat, and when the driving assembly is assembled to the fixing seat, the mounting plate is embedded into the groove and can rotate in the groove;

the bottom of the groove is provided with a mounting hole, the driving component is positioned on the surface of the fixed seat, which is back to the side where the sliding groove is positioned, and the driving component is fixedly connected with the mounting plate through at least one fastener penetrating through the mounting hole.

Preferably, the mounting plate is provided with a through hole matched with the driving bolt, and one end of the driving bolt penetrates through the strip-shaped groove, the through hole of the mounting plate and the mounting hole of the fixing seat in sequence and then is riveted and fixed to the driving member; when drive member and mounting panel rotated, the drive was tied and is followed the mounting panel is rotatory and the extrusion the lateral wall in bar groove makes the hasp piece is followed the spout slides.

Preferably, the driving assembly comprises a driving handle, wherein pivoting convex shafts are respectively arranged on two sides of one end of the driving handle, and the pivoting convex shafts on two sides of one end of the driving handle are positioned on the same straight line; the two sides of the driving member are respectively provided with a pivoting hole matched with the pivoting convex shaft, the driving handle is pivoted and fixed with the driving member in a manner that the pivoting convex shaft is inserted into the pivoting hole, and the driving member is driven to rotate by the driving handle.

Preferably, the driving assembly further comprises an elastic member, the elastic member is located between the driving member and the fixing seat, one end of the elastic member abuts against the fixing seat, and the other end of the elastic member abuts against a pivot joint protruding shaft of the driving handle; the pin joint protruding shaft clings to the driving component under the elastic force action of the elastic piece and pushes the driving component to be far away from the fixed seat.

Preferably, the fixing base includes a fixing portion for locking and fixing to the box and a sliding groove portion with one end pivoted on the fixing portion through a pin shaft, and the sliding groove is located on an inner side surface of the sliding groove portion.

Preferably, two sides of the fixing part are provided with locking edges protruding in a direction away from the box body, and the locking edges are provided with locking holes for locking a lock head; the driving handle is provided with two notches matched with the locking edges, the driving handle winds the rotary lock of the pin joint protruding shaft is fastened to the fixing part, the two notches of the driving handle are fastened to the locking edges on two sides of the fixing part respectively, and each of the two notches of the locking edge is penetrated through the notches respectively to one side of the fixing part, and the driving handle backs to the one side of the fixing part.

Preferably, the hasp seat includes that the opening is towards keeping away from the draw-in groove that the direction of box set up, the hasp piece be equipped with the buckle of draw-in groove looks adaptation, just the hasp piece is in drive under the drive of drive bolt the buckle breaks away from or the joint arrives the draw-in groove.

Preferably, an included angle between the length direction of the strip-shaped groove and the sliding direction of the locking fastener is greater than or equal to 60 degrees, and the dimension of the strip-shaped groove in the sliding direction perpendicular to the locking fastener is greater than or equal to the depth of the clamping groove.

Preferably, the locking seat, the fixing seat, the locking seat and the driving member are respectively made of sheet metal materials.

The utility model discloses hasp has following beneficial effect: the driving assembly rotates to drive the locking piece to slide, so that the locking piece is separated from or locked to the locking seat, and a locking and locking function is realized; and the mode of driving through the driving component does not limit the designability of the latch preparation material.

Drawings

Fig. 1 is a schematic structural view of a lock catch according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram illustrating the disassembly of the lock catch according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a lock section according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, which is a schematic structural diagram of a lock catch provided in an embodiment of the present invention, the lock catch can be applied to the field of mechanical fixing locks, especially in a storage box (e.g. a suitcase), so as to implement a connecting lock catch of the storage box. The lock catch in the embodiment is mainly used for buckling and locking the box cover and the box body so as to seal the accommodating groove between the box cover and the box body and realize the accommodating function of storing in the accommodating groove.

As shown in fig. 2, the lock catch of the present embodiment includes a lock catch base 1 and a fastening tongue device 2, wherein the lock catch base 1 is used for installing and fixing a box cover (containing box), the fastening tongue device 2 is used for installing and fixing a box body (containing box), and when the box cover is fastened to the box body, the lock catch base 1 corresponds to the fastening tongue device 2, so that the box cover and the box body can be fixedly connected by mutually fastening and locking the fastening tongue device 2 and the lock catch base 1. Of course, in practical application, the latch holder 1 may be mounted to the box body, and the latch device 2 may be mounted to the box cover, which may be determined according to practical situations.

Specifically, the tongue device 2 includes a fixed seat 21, a locking piece 22 and a driving assembly 23, wherein the locking piece 22 is slidably connected with the fixed seat 21; for example, the sliding connection is realized by a way of groove-edge matching, or by a way of arranging a sliding component (e.g. a sliding rail) between the locking piece 22 and the fixed seat 21. In addition, the driving assembly 23 is rotatably assembled to the fixed seat 21, that is, the driving assembly 23 is assembled on the fixed seat 21 and can rotate relative to the fixed seat 21.

Further, the driving assembly 23 includes a driving bolt 231, the locking member 22 is provided with a strip-shaped groove 221 adapted to the driving bolt 231, and at least a portion of the driving bolt 231 is inserted into the strip-shaped groove 221. The driving pin 231 is integrally connected to the driving assembly 23 by means of assembling (e.g. riveting), and the driving pin 231 is parallel to the rotation axis of the driving assembly 23 (i.e. the rotation axis of the driving assembly 23 rotating relative to the fixing base 21).

Since the driving assembly 23 can rotate relative to the fixing base 21, and the locking member 22 is slidably connected to the fixing base 21, when the driving assembly 23 rotates relative to the fixing base 21, the driving bolt 231 can be driven to rotate around the center of the driving assembly 23, so that the driving bolt 231 slides in the strip-shaped groove 221 of the locking member 22 and presses the side wall of the strip-shaped groove 221, thereby driving the locking member 22 to slide relative to the fixing base 21, so that the locking member 22 extends and retracts to disengage from the locking base 1, or is fastened to the locking base 1.

In order to prevent the driving bolt 231 from being unable to drive the locking member 22 when rotating around the center of the driving assembly 23, so that the driving bolt 231 can smoothly slide in the strip-shaped groove 221, an included angle between the length direction of the strip-shaped groove 221 (i.e. the arrangement direction of the strip-shaped groove 221) and the sliding direction of the locking member 22 should be greater than 0 °, i.e. the length direction of the strip-shaped groove 221 is not arranged along the sliding direction of the locking member 22, and it is ensured that the driving bolt 231 can be extruded to the side wall of the strip-shaped groove 221 when sliding in the strip-shaped groove 221, so as to drive the locking member 22 to move along. In order to improve the structural design, the driving assembly 23 is preferably assembled to the fixing base 21 in a manner of being able to rotate around the direction perpendicular to the sliding direction of the locking member 22, so that the driving bolt 231 can slide more smoothly in the strip-shaped groove 221 and extrude the side wall of the stably extruded strip-shaped groove 221 to avoid being locked.

The lock catch drives the locking piece 22 to slide by the rotation of the driving component 23, so that the locking piece 22 is separated from or locked to the lock catch base 1, thereby achieving the function of locking and buckling. Moreover, the lock joint locking operation of the lock catch is simple and convenient, the lock joint and the lock joint removing operation can be completed without applying large force, the operation difficulty is low, violent impact during operation is effectively avoided, the lock catch is damaged, the service life of the lock catch is prolonged, the problem of locking can be effectively solved, the problem that the lock catch cannot be connected or needs to be violently removed is prevented, and the use stability and reliability are improved.

Different from the existing lock catch which realizes connection by adopting an interference fit mode, the lock catch piece 22 and the lock catch seat 1 in the embodiment do not need to be mutually extruded to generate elastic deformation, so the lock catch is not limited in material selection and has higher designability. In practical application, the latch holder 1, the fixing holder 21, the latch member 22 and the driving assembly 23 are preferably made of sheet metal (such as stainless steel), and have high strength, low cost, convenient and fast processing and high practicability. Of course, the latch holder 1, the fixing holder 21, the latch member 22 and the driving member 23 may be made of other materials, such as plastic.

As shown in fig. 3, the latch holder 1 includes a slot 11 with an opening facing away from the box, the latch member 22 is provided with a buckle 222 protruding outside the fixing base 21, and the buckle 222 is adapted to the slot 11 of the latch holder 1, so that the latch member 22 can drive the buckle 222 to disengage from or be fastened to the slot 11 under the driving of the driving bolt 231, thereby realizing the fastening and locking with the latch holder 1.

Preferably, the angle between the length direction of the groove 221 of the locking element 22 and the sliding direction of the locking element 22 is greater than or equal to 60 °, which can make the driving bolt 231 squeeze the side wall of the groove 221 more labor-saving, and prevent the locking element 22 from easily making the side wall of the groove 221 squeeze the driving bolt 231 in turn under the action of gravity to cause the locking element 22 to slide and displace. Therefore, the driving pin 231 can be prevented from being easily deformed or broken and damaged due to the small included angle between the length direction of the strip-shaped groove 221 of the locking piece 22 and the sliding direction of the locking piece 22 (large force is required to be applied during operation), and the operation difficulty is also reduced. In practical applications, the groove 221 of the locking element 22 is perpendicular to the sliding direction of the locking element 22, i.e. the angle between the length direction of the groove 221 of the locking element 22 and the sliding direction of the locking element 22 is 90 °.

In order to ensure that the buckle 222 can be reliably separated from the slot 11 of the buckle base 1 when the buckle is released, the dimension of the strip-shaped groove 221 in the direction perpendicular to the sliding direction of the buckle 22 should be greater than or equal to the depth of the slot 11, so that the effective sliding stroke of the buckle 22 driven by the driving bolt 231 is greater than the depth of the slot 11, and the free end of the buckle 222 can be ensured to be clamped into or separated from the slot 11.

In an embodiment of the present invention, the fixing base 21 includes a sliding groove 211 disposed along the sliding direction of the locking element 22, and the locking element 22 is assembled into the sliding groove 211, that is, the sliding groove 211 limits the locking element 22, so that the locking element 22 can slide along the sliding direction set by the sliding groove 211. Of course, the sliding direction of the locking element 22 should be toward the locking seat 1.

Specifically, the locking member 22 has a set of parallel sides, the two sides of the sliding slot 211 respectively have a limiting slot adapted to the sides of the locking member 22, and when the locking member 22 is assembled to the sliding slot 211, the two sides of the locking member 22 are respectively snapped into the two limiting slots of the sliding slot 211 to realize the sliding connection between the locking member 22 and the sliding slot 211.

In addition, the driving assembly 23 of the embodiment includes a driving member 232 and a circular mounting plate 233, and a surface of the side of the fixed seat 21 where the sliding groove 211 is located is provided with a groove 212 adapted to the mounting plate 233, that is, the groove 212 is also circular, so that when the driving assembly 23 is assembled to the fixed seat 21, the mounting plate 233 can be embedded in the groove 212 and limited by the groove 212, so that the mounting plate 233 can rotate in the groove 212, and thus the driving assembly 23 can be supported by the mounting plate 233 to realize rotatable connection with the fixed seat 21.

Specifically, the bottom of the groove 212 has a mounting hole 213, and the mounting hole 213 penetrates through the fixing base 21. In addition, the driving member 232 is located on the surface of the fixed base 21 facing away from the sliding chute 211, and since the mounting hole 213 penetrates through the fixed base 21, the fixed base 21 can be fixedly connected with the mounting plate 233 by a fastening member 234 (e.g., a rivet) penetrating through the mounting hole 213, so as to achieve synchronous rotation with the mounting plate 233.

In practical applications, the number of the fasteners 234 can be determined according to practical situations, and in order to avoid complication of the structure, one fastener is preferably used to cooperate with the driving bolt 231 (the driving bolt 231 of the present embodiment can also be used as a fastener) to fix two positions of the mounting plate 233 and the driving member 232, so that the mounting plate 233 and the driving member 232 rotate synchronously. Of course, the number of fasteners 234 may also be 2.

In order to improve stability and reliability of driving of the driving pin 231, the driving pin 231 is preferably fixedly connected to the driving member 232. One end of the driving pin 231 may be directly riveted to the driving member 232.

Specifically, the mounting plate 233 is provided with a through hole 233a adapted to the driving bolt 231, and one end of the driving bolt 231 is riveted to the driving member 232 after passing through the strip-shaped groove 221, the through hole 233a of the mounting plate 233, and the mounting hole 213 of the fixing base 21 in this order. Therefore, when the driving member 232 and the mounting plate 233 rotate, the driving pin 231 rotates along the mounting plate 233 and presses the side wall of the bar-shaped groove 221, so that the locking member 22 slides along the sliding groove 211.

In particular, the inner wall of the through hole 233a of the mounting plate 233 is closely attached to the outer surface of the driving bolt 231, so that the driving bolt 231 can be supported and driven at two positions, the stability and reliability of the rotation of the driving bolt 231 can be improved, the connection between the driving bolt 231 and the driving member 232 can be more reliable, and the driving bolt 231 can be facilitated to extrude the side wall of the strip-shaped groove 221.

In another embodiment of the present invention, the driving assembly 23 includes a driving handle 235, the two sides of one end of the driving handle 235 are respectively provided with a pin-jointed protruding shaft 235a, and the pin-jointed protruding shafts 235a of the two sides of one end of the driving handle 235 are located on the same straight line.

In addition, the driving member 232 is provided with two pivoting holes 232a at two sides thereof, and the pivoting holes 232a are adapted to the pivoting protruding shafts 235a, so that the driving handle 235 can be pivotally connected to the driving member 232 by inserting the pivoting protruding shafts 235a into the pivoting holes 232a, and the driving handle 235 drives the driving member 232 to rotate, so that the driving bolt 231 rotates around the rotating shaft of the driving assembly 23.

Of course, the connection line between the two side pivot holes 232a of the driving member 232 should pass through the rotation axis of the driving assembly 23, which is advantageous for the driving operation of the driving handle 235. The shape of the pivot shaft 235a of the driving handle 235 may be determined according to practical situations, for example, it is rectangular, cylindrical, etc. Also, in practice, the driving member 232 may comprise a body and a cover, which are independent from each other, and the body and the cover may be connected together by a fastening member 234 and a driving bolt 231.

In addition, the driving assembly 23 further includes an elastic member 236, the elastic member 236 is located between the driving member 232 and the fixing base 21, and one end of the elastic member 236 abuts against the fixing base 21 and the other end abuts against the pivot protruding shaft 235a of the driving handle 235. Therefore, the pivot protruding shaft 235a clings to the driving member 232 under the elastic force of the elastic member 236 and pushes the driving member 232 to be away from the fixing base 21, which not only can limit the driving handle 235, but also can enable a larger gap to exist between the driving member 232 and the fixing base 21, thereby preventing the driving member 232 from rubbing with the surface of the fixing base 21 when rotating and avoiding the collision and abrasion of parts. The shape of the elastic member 236 may be determined according to actual conditions.

The fixing base 21 of the present embodiment includes a fixing portion 201 for being fixed to the box body in a locking manner, and a sliding groove portion 202 having one end pivoted to the fixing portion 201 through a pin 203, wherein the sliding groove 211 is located on an inner side surface of the sliding groove portion 202. The fixing base 21 is provided with the fixing portion 201 and the sliding groove portion 202 which are pivotally connected, so that the sliding groove portion 202 can rotate around the pin shaft 203, which is beneficial to fastening the fastener 22 to the fastener base 1, and improves the operability of fastening and locking of the fastener.

Specifically, both sides of the fixing portion 201 have locking edges 202a protruding in a direction away from the case, and the locking edges 202a are provided with locking holes 202b to which the locking head is locked. The driving handle 235 is provided with two notches 235b matched with the locking edges 202a, when the driving handle 235 is rotatably buckled to the fixing portion 201 around the pivoting protruding shaft 235a, the two notches 235b of the driving handle 235 are respectively buckled to the locking edges 202a on two sides of the fixing portion 201, at least one part of the locking hole 202b of each locking edge 202a penetrates out to one side of the driving handle 235, which is opposite to the fixing portion 201, through the notches 235b, so that the locking head can be locked on the locking hole 202b, the driving handle 235 is limited and fixed, and meanwhile, the driving assembly 23 is limited by the driving handle 235, so that the phenomenon that the locking is released due to rotation caused by misoperation of the driving assembly 23 is avoided.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A lock catch used for buckling and locking a box cover and a box body is characterized in that the lock catch comprises a lock catch seat used for being installed on the box cover and a buckle tongue device used for being installed on the box body; the buckle tongue device comprises a fixed seat, a buckle piece and a driving assembly, wherein the buckle piece is connected with the fixed seat in a sliding way, and the driving assembly is assembled on the fixed seat in a rotatable way; the driving assembly comprises a driving bolt, the lock catch piece is provided with a strip-shaped groove matched with the driving bolt, and an included angle between the length direction of the strip-shaped groove and the sliding direction of the lock catch piece is larger than 0 degree; at least one part of the driving bolt is inserted into the strip-shaped groove, and the driving assembly drives the driving bolt to extrude the side wall of the strip-shaped groove when rotating, so that the locking piece slides to be disengaged or buckled on the locking seat.

2. A latch as defined in claim 1, wherein the holder includes a slide groove provided along a sliding direction of the catch member, and the catch member is fitted into the slide groove;

3. A latch as defined in claim 2, wherein the mounting plate is provided with a through hole adapted to the driving bolt, and one end of the driving bolt is riveted and fixed to the driving member after passing through the strip-shaped groove, the through hole of the mounting plate and the mounting hole of the fixing seat in sequence; when drive member and mounting panel rotated, the drive was tied and is followed the mounting panel is rotatory and the extrusion the lateral wall in bar groove makes the hasp piece is followed the spout slides.

4. The latch of claim 3, wherein the driving assembly comprises a driving handle, the driving handle is provided with a pivoting protruding shaft at each of two sides of one end of the driving handle, and the pivoting protruding shafts at the two sides of one end of the driving handle are located on the same straight line; the two sides of the driving member are respectively provided with a pivoting hole matched with the pivoting convex shaft, the driving handle is pivoted and fixed with the driving member in a manner that the pivoting convex shaft is inserted into the pivoting hole, and the driving member is driven to rotate by the driving handle.

5. A latch as defined in claim 4, wherein the driving assembly further comprises a resilient member, the resilient member is located between the driving member and the fixed base, one end of the resilient member abuts against the fixed base, and the other end of the resilient member abuts against the pivot shaft of the driving handle; the pin joint protruding shaft clings to the driving component under the elastic force action of the elastic piece and pushes the driving component to be far away from the fixed seat.

6. A latch according to claim 4, wherein the fixing base comprises a fixing portion for fixing to the box body, and a sliding groove portion having one end pivotally connected to the fixing portion via a pin, the sliding groove portion being located on an inner side of the sliding groove portion.

7. A lock according to claim 6, wherein the fixing portion has locking edges protruding in a direction away from the housing at both sides thereof, and the locking edges are provided with locking holes for locking the locking head; the driving handle is provided with two notches matched with the locking edges, the driving handle winds the rotary lock of the pin joint protruding shaft is fastened to the fixing part, the two notches of the driving handle are fastened to the locking edges on two sides of the fixing part respectively, and each of the two notches of the locking edge is penetrated through the notches respectively to one side of the fixing part, and the driving handle backs to the one side of the fixing part.

8. A lock according to any of claims 1-7, wherein the lock holder comprises a slot with an opening facing away from the housing, the locking member is provided with a catch adapted to the slot, and the locking member is driven by the driving bolt to disengage or engage the catch with the slot.

9. A lock according to claim 8, wherein the angle between the length direction of the strip-shaped groove and the sliding direction of the locking element is greater than or equal to 60 °, and the dimension of the strip-shaped groove in the direction perpendicular to the sliding direction of the locking element is greater than or equal to the depth of the locking groove.

10. A latch as defined in claim 3, wherein the latch base, the anchor base, the latch base and the driving member are each formed from sheet metal material.