CN211448220U - Safety lock with swing hook - Google Patents

Abstract

The utility model discloses a safety lock with a swing hook, which comprises a support, a lock rod, a swing hook and a safety limiting device, wherein the support, the lock rod, the swing hook and the safety limiting device are arranged on the end wall of a metal box; one end of the swing hook is hinged to the inner wall of the through hole; the lock rod is slidably arranged on the support, and a handle is arranged on the lock rod; the bottom of the swing hook is provided with a hook part, one end of the lock rod extends into the through hole to eject the hook part of the swing hook out of the through hole, the hook part hooks the inner wall of the clamping groove to lock the end wall and the side wall of the metal box together, and when the hook part hooks the inner wall of the clamping groove, the safety limiting device locks the lock rod. The utility model discloses only need to promote the locking lever to through-hole direction slip and roof pressure swing hook through manual holding the handle, make the portion of colluding of swing hook upwards swing and hook the inner wall top with the draw-in groove on the corresponding lateral wall of end wall, can be in the same place end wall and the lateral wall locking of metal box, easy operation, quick and convenience.

Description

Safety lock with swing hook

Technical Field

The present invention relates to a safety lock, and more particularly to a safety lock with a swing hook for transporting a metal box made of a material with creep deformation.

Background

In shipping creep-prone materials, such as synthetic rubber, it is often desirable to load the creep-prone material into a metal box. To facilitate the handling of goods and the transport of empty containers in a stacked manner, the ends and side walls of the metal boxes are usually provided in a detachable or foldable manner. The end wall of the existing metal box is required to be provided with a lockset connected with the adjacent side wall upright post so as to lock the adjacent end wall and the adjacent side wall, so that the end wall and the side wall can be kept in a relatively fixed state when goods are loaded, and the use reliability and the safety of the metal box are ensured. However, the existing lock sets a clipping hole on the adjacent side wall upright post, and a protrusion is arranged at the front end of the lock rod. When the adjacent end wall and the adjacent side wall need to be locked, the locking rod needs to be swung manually firstly to adjust the position of the protrusion, so that the protrusion can be aligned with the clamping hole, then the front end and the protrusion of the locking rod are pushed to extend into the clamping hole, and finally the locking rod is swung manually in the reverse direction, so that the protrusion clamps the side wall of the clamping hole, and the adjacent end wall and the adjacent side wall are locked together. The locking step is complicated, the operation is complex, and the use is inconvenient. And when the locking state, because the lateral wall stand has exerted axial direction's effort to the locking lever through protruding, so when the unblock, need the locking lever to exert very big moment of torsion just can deviate from the arch from the card hole, intensity of labour is very big, the operation difficulty brings very big inconvenience for the personnel of operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to above-mentioned problem, provide a use and easy operation, convenient, quick and safe and reliable's safety lock with swing hook.

The purpose of the utility model can be achieved by adopting the following technical scheme:

a safety lock with a swing hook comprises a support, a lock rod, the swing hook and a safety limiting device which are arranged on the end wall of a metal box, wherein a through hole is formed in the end wall, and a clamping groove is formed in the side wall corresponding to the end wall; one end of the swing hook is hinged to the inner wall of the through hole; the lock rod is slidably arranged on the support, and a handle is arranged on the lock rod; the bottom of the swing hook is provided with a hook part, one end of the lock rod extends into the through hole to eject the hook part of the swing hook out of the through hole, the hook part hooks the inner wall of the clamping groove to lock the end wall and the side wall of the metal box together, and when the hook part hooks the inner wall of the clamping groove, the safety limiting device locks the lock rod.

The swing hook is provided with a first elastic piece, and under a normal state, the first elastic piece applies elastic force to the swing hook to swing the hook part of the swing hook towards the direction of the through hole.

The safety limiting device comprises a limiting block and a second elastic piece, the limiting block can be arranged on the end wall or the support of the metal box in a swinging mode, and under the normal state, the second elastic piece applies elasticity to the limiting block to enable the limiting block to swing towards the direction of the lock rod; the lock rod is provided with a first limiting clamping groove, and the limiting block is provided with a bulge corresponding to the first limiting clamping groove in position; when the hook part hooks the inner wall of the clamping groove, the protruding clamp is connected into the first limiting clamping groove.

The lock rod is provided with a second limiting clamping groove, and when the hook part does not hook the inner wall of the clamping groove, the protruding clamp is connected into the second limiting clamping groove.

The support is provided with a bayonet, when the hook part hooks the inner wall of the clamping groove, the convex card is connected into the first limiting clamping groove, and one end of the limiting block is connected into the bayonet in a clamping mode; when the inner wall of the clamping groove is not hooked by the hooking part, the protruding clamp is connected into the second limiting clamping groove, and one end of the limiting block is connected into the clamping opening.

The first elastic piece is a torsion spring.

The second elastic piece is a torsion spring.

Implement the utility model discloses, following beneficial effect has:

1. the utility model discloses only need to promote the locking lever to slide and roof pressure swing hook to the through-hole direction through manual holding the handle, make the portion of colluding of swing hook upwards swing and hook the inner wall top with the draw-in groove on the corresponding lateral wall of end wall, can be in the same place the end wall and the lateral wall locking of metal carton, and is easy in operation, and is quick and convenient, solved present when needs lock adjacent end wall and lateral wall, at first need with manual swing locking lever, in order to adjust bellied position, make protruding can aim at the card hole, then the front end that promotes the locking lever again stretches into in the card hole with the arch, at last manual reverse swing locking lever again, make the protruding inner wall that blocks the card hole, and lead to the step loaded down with trivial details, the operation is complicated, use inconvenient problem. And when the hook part hooks the inner wall of the clamping groove, the safety limiting device locks the lock rod, so that the lock rod cannot slide, the lock rod can be ensured to stably press the swing hook, the hook part of the swing hook can stably hook the top of the inner wall of the clamping groove, and the locking is stable, safe and reliable.

2. The utility model discloses only need to promote the one end of locking lever to the direction that withdraws from the through-hole through the manual handle of holding and slide, make the portion of colluding of swing hook deviate from under the effect of self gravity with the inner wall top of the draw-in groove on the corresponding lateral wall of end wall, can be with the end wall and the lateral wall unblock and the separation of metal box, the unblock is simple, convenient and quick. The end wall and the lateral wall unblock and the separation of metal box can be accomplished fast to whole unblock process only need the horizontal slip direction of control locking lever, the operation is laborsaving, low in labor strength, solved current when locking state, because the axial direction's effort has been applied to the locking lever through the arch to the lateral wall stand, need the locking lever to apply very big moment of torsion just can deviate from the arch from the card hole and realize the purpose of solving, lead to intensity of labour very big, the operation difficulty, bring very big inconvenient problem for the personnel of operation.

3. The utility model discloses an elasticity drive stopper of second elastic component swings to the locking lever direction to make protruding roof pressure on the locking lever. When the handle pushes the lock rod to slide and push the swing hook, the hook part of the swing hook hooks the inner wall of the clamping groove, and at the moment, the first limiting clamping groove slides to the position corresponding to the protrusion, so that the elastic force of the second elastic piece drives the protrusion card to be connected into the first limiting clamping groove, the lock rod is locked on the support and stably pushes the swing hook, the lock rod is prevented from sliding, and the stability and the reliability of locking the end wall and the side wall of the metal box are ensured. When the locking rod needs to be pushed to slide, the elastic action of the second elastic piece needs to be overcome to reversely apply acting force on the limiting block, so that the limiting block swings reversely to disengage the protrusion from the first limiting clamping groove, and then the locking rod is unlocked and can slide under the action of the pushing force. The lock rod can be safely locked under the elastic action of the limiting block and the second elastic piece, and the lock rod can be pushed to slide after the lock rod is unlocked by swinging the limiting block during unlocking, so that the stability, the safety and the reliability of the lock rod for jacking and pressing the swing hook are ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a metal box of the safety lock with a swing hook of the present invention;

FIG. 2 is a schematic view of the safety lock with swing hook of the present invention;

FIG. 3 is a schematic structural view of the safety lock with the swing hook according to the present invention when the swing hook hooks the slot of the sidewall;

fig. 4 is a schematic structural view of the safety lock with the swing hook of the present invention when the swing hook is disengaged from the slot of the side wall.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1 to 4, the present embodiment relates to a safety lock with a swing hook, which includes a support 1, a lock rod 2, a swing hook 3 and a safety limiting device 4, which are disposed on an end wall 10 of a metal box 10, wherein a through hole 11 is formed on the end wall 100, and a clamping groove 102 is formed on a side wall 101 corresponding to the end wall 100; one end of the swing hook 3 is hinged on the inner wall of the through hole 11; the lock rod 2 can be slidably arranged on the support 1, and a handle 21 is arranged on the lock rod 2; the bottom of the swing hook 3 is provided with a hook part 31, one end of the lock rod 2 extends into the through hole 11 to eject the hook part 31 of the swing hook 3 out of the through hole 11, the hook part 31 hooks the inner wall of the clamping groove 102 to lock the end wall 100 and the side wall 101 of the metal box 10 together, and when the hook part 31 hooks the inner wall of the clamping groove 102, the safety limiting device 4 locks the lock rod 2.

As shown in fig. 2 and 3, in the structure, the end wall 100 and the side wall 101 of the metal box 10 can be locked together only by manually holding the handle 21 to push the lock rod 2 to slide towards the direction of the through hole 11 and press the swing hook 3, so that the hook portion 31 of the swing hook 3 swings upwards to hook the top of the inner wall of the clamping groove 102 on the side wall 101 corresponding to the end wall 100, and the operation is simple, quick and convenient, thereby solving the problems that when the adjacent end wall 100 and the adjacent side wall 101 need to be locked, firstly, the manual swing lock rod 2 needs to be adjusted to adjust the position of the protrusion so that the protrusion can be aligned with the clamping hole, then, the front end and the protrusion of the lock rod 2 are pushed to extend into the clamping hole, and finally, the lock rod 2 is manually swung reversely so that the protrusion blocks the inner wall of the clamping hole, which causes complicated steps. When the hook part 31 hooks the inner wall of the clamping groove 102, the safety limiting device 4 locks the lock rod 2, so that the lock rod 2 cannot slide, the lock rod 2 can stably press the swing hook 3, the hook part 31 of the swing hook 3 can stably hook the top of the inner wall of the clamping groove 102, and the locking is stable, safe and reliable.

As shown in fig. 3 and 4, in the structure, the end wall 100 and the side wall 101 of the metal box 10 can be unlocked and separated simply, conveniently and quickly by only manually holding the handle 21 to push one end of the lock rod 2 to slide towards the direction of withdrawing from the through hole 11, so that the hook portion 31 of the swing hook 3 is separated from the top of the inner wall of the clamping groove 102 on the side wall 101 corresponding to the end wall 100 under the action of self gravity. The end wall 100 and the lateral wall 101 of metal box 10 unblock and separation can be accomplished fast to whole unblock process only need the horizontal slip direction of control locking lever 2, the operation is laborsaving, low in labor strength, solved current when locking state, because axial direction's effort has been applied to locking lever 2 through protruding to the lateral wall 101 stand, need locking lever 2 to apply very big moment of torsion just can deviate from the protruding card hole and realize the purpose of solving, lead to intensity of labour very big, the operation difficulty, bring very big inconvenient problem for the personnel of operation.

The swing hook 3 is provided with a first elastic member that applies an elastic force to the swing hook 3 to swing the hook portion 31 of the swing hook 3 in the direction of the through hole 11 in a normal state. When unlocking, only one end of the lock rod 2 is pushed to slide towards the direction of withdrawing from the through hole 11 by manually holding the handle 21, the hook part 31 of the swing hook 3 can quickly swing towards the direction of the through hole 11 under the dual action of the elastic force of the first elastic piece and the self gravity, so that the hook part 31 is separated from the top of the inner wall of the clamping groove 102 on the side wall 101 corresponding to the end wall 100, the end wall 100 and the side wall 101 of the metal box 10 can be unlocked and separated, the unlocking is quicker and more convenient, and the condition that the end wall 100 and the side wall 101 of the metal box 10 cannot be unlocked and separated due to the fact that the hook part 31 cannot be separated from the clamping groove 102 due to the self gravity of the swing hook 3 is prevented.

The safety limiting device 4 comprises a limiting block 41 and a second elastic piece 42, the limiting block 41 can be arranged on the end wall 100 of the metal box 10 or the support 1 in a swinging mode, and in a normal state, the second elastic piece 42 applies elasticity to the limiting block 41 to enable the limiting block 41 to swing towards the direction of the lock rod 2; a first limiting clamping groove 22 is formed in the lock rod 2, and a protrusion 411 corresponding to the first limiting clamping groove 22 is formed in the limiting block 41; when the hook 31 hooks the inner wall of the slot 102, the protrusion 411 is engaged into the first limiting slot 22. One end of the limiting block 41 is hinged to the end wall 100 of the metal box 10 or the support 1, and the protrusion 411 is arranged in the middle of the limiting block 41.

Under normal conditions, the elastic force of the second elastic member 42 drives the stopper 41 to swing toward the lock lever 2, and the protrusion 411 is pressed against the lock lever 2. When the handle 21 pushes the lock rod 2 to slide and press the swing hook 3, the hook 31 of the swing hook 3 hooks the inner wall of the slot 102, and at this time, the first limit slot 22 slides to the position corresponding to the protrusion 411, so that the protrusion 411 is driven by the elastic force of the second elastic member 42 to be clamped into the first limit slot 22, thereby locking the lock rod 2 on the support 1 and stably pressing the swing hook 3, preventing the lock rod 2 from sliding, and ensuring the stability and reliability of locking the end wall 100 and the side wall 101 of the metal box 10.

When the locking rod 2 needs to be pushed to slide, the elastic force of the second elastic member 42 needs to be overcome to reversely apply an acting force on the limiting block 41, so that the limiting block 41 swings reversely to remove the protrusion 411 from the first limiting clamping groove 22, and then the locking rod 2 is unlocked and can slide under the action of the pushing force. The lock rod 2 can be safely locked under the elastic force of the limiting block 41 and the second elastic piece 42, and the lock rod 2 can be pushed to slide after the lock rod 2 is unlocked by swinging the limiting block 41 during unlocking, so that the stability, the safety and the reliability of the lock rod 2 pressing the swinging hook 3 are ensured.

The lock rod 2 is provided with a second limiting clamping groove 23, and when the hook part 31 does not hook the inner wall of the clamping groove 102, the protrusion 411 is clamped into the second limiting clamping groove 23. After unlocking, in order to prevent the locking rod 2 from sliding freely and pressing the swing hook 3, and further to prevent the problem that the end wall 100 and the side wall 101 of the metal box 10 cannot be locked in a butt joint manner, when the hook portion 31 does not hook the inner wall of the clamping groove 102, that is, the locking rod 2 does not press the swing hook 3, the elastic force driving protrusion 411 of the second elastic member 42 is clamped into the second limiting clamping groove 23, and then the locking rod 2 is limited by the limiting block 41 and cannot slide.

A bayonet 12 is arranged on the support 1, when the hook part 31 hooks the inner wall of the clamping groove 102, the protrusion 411 is clamped into the first limiting clamping groove 22, and one end of the limiting block 41 is clamped into the bayonet 12; when the hook portion 31 does not hook the inner wall of the slot 102, the protrusion 411 is clamped into the second limiting slot 23, and one end of the limiting block 41 is clamped into the bayonet 12. After the protrusion 411 is clamped into the first limiting clamping groove 22 or the second limiting clamping groove 23, in order to prevent the protrusion 411 from being separated from the first limiting clamping groove 22 or the second limiting clamping groove 23 caused by the swing of the lock rod 2 under the action of external force, one end of the limiting block 41 is clamped into the clamping opening 12, and the limiting block 41 is prevented from easily swinging under the action of external force to cause the protrusion 411 to be separated from the first limiting clamping groove 22 or the second limiting clamping groove 23.

The first elastic piece is a torsion spring. Under a normal state, that is, under the condition that the lock lever 2 does not press the swing hook 3, the torsion force of the torsion spring drives the swing hook 3 to move towards the through hole 11, so that the hook portion 31 of the swing hook 3 is separated from the top of the inner wall of the clamping groove 102 on the side wall 101 corresponding to the end wall 100, and the end wall 100 and the side wall 101 of the metal box 10 can be unlocked and separated.

The second elastic member 42 is a torsion spring. In a normal state, the torsion of the torsion spring drives the stopper 41 to swing toward the lock lever 2, and the protrusion 411 is pressed against the lock lever 2. When the handle 21 pushes the lock rod 2 to slide and press the swing hook 3, the hook part 31 of the swing hook 3 hooks the inner wall of the clamping groove 102, and at the moment, the first limit clamping groove 22 slides to the position corresponding to the protrusion 411, so that the torsion driving protrusion 411 of the torsion spring is clamped into the first limit clamping groove 22, the lock rod 2 is locked on the support 1 and stably presses the swing hook 3, the lock rod 2 is prevented from sliding, and the stability and reliability of locking the end wall 100 and the side wall 101 of the metal box 10 are ensured.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims (7)

1. A safety lock with a swing hook is characterized by comprising a support, a lock rod, the swing hook and a safety limiting device which are arranged on the end wall of a metal box, wherein a through hole is formed in the end wall, and a clamping groove is formed in the side wall corresponding to the end wall; one end of the swing hook is hinged to the inner wall of the through hole; the lock rod is slidably arranged on the support, and a handle is arranged on the lock rod; the bottom of the swing hook is provided with a hook part, one end of the lock rod extends into the through hole to eject the hook part of the swing hook out of the through hole, the hook part hooks the inner wall of the clamping groove to lock the end wall and the side wall of the metal box together, and when the hook part hooks the inner wall of the clamping groove, the safety limiting device locks the lock rod.

2. The security lock with the swing hook according to claim 1, wherein the swing hook is provided with a first elastic member, and in a normal state, the first elastic member applies an elastic force to the swing hook to swing the hook portion of the swing hook in the direction of the through hole.

3. The safety lock with the swing hook according to claim 1, wherein the safety limiting device comprises a limiting block and a second elastic member, the limiting block is swingably mounted on the end wall or the support of the metal box, and in a normal state, the second elastic member applies an elastic force to the limiting block to swing the limiting block toward the lock rod; the lock rod is provided with a first limiting clamping groove, and the limiting block is provided with a bulge corresponding to the first limiting clamping groove in position; when the hook part hooks the inner wall of the clamping groove, the protruding clamp is connected into the first limiting clamping groove.

4. The safety lock with the swing hook according to claim 3, wherein the lock rod is provided with a second limit slot, and the protrusion is inserted into the second limit slot when the hook portion does not hook the inner wall of the slot.

5. The safety lock with the swing hook as claimed in claim 4, wherein the support is provided with a bayonet, when the hook portion hooks the inner wall of the slot, the protruding clip is inserted into the first limiting slot, and one end of the limiting block is clipped into the bayonet; when the inner wall of the clamping groove is not hooked by the hooking part, the protruding clamp is connected into the second limiting clamping groove, and one end of the limiting block is connected into the clamping opening.

6. A safety lock with a swing hook according to claim 2, wherein the first resilient member is a torsion spring.

7. A safety lock with a swing hook according to claim 3, wherein the second resilient member is a torsion spring.

Images