The technical realization elements of the plastic packaging box lock assembly.

Technical implementation elements:

3. In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by this utility model is: how to provide a kind of packaging box that can better fasten and lock the packaging box, has a simple structure, is easy to install, small in size, light in weight, and can withstand Large pulling force, easy to use plastic box lock assembly.

4. in order to solve the above-mentioned technical problem, the utility model has adopted the following technical scheme:

5. A plastic packaging box lock assembly, comprising a first mounting plate, a second mounting plate and a locking plate, wherein a mounting seat is symmetrically arranged on the first mounting plate, and a rotating shaft is arranged on the mounting seat through a through hole , the locking plate is rotated and installed between the mounting seats through the rotating shaft, one end of the locking plate close to the mounting seat is bent and arranged, and the other end is provided with a protrusion symmetrically arranged with the bending direction, so Fastening holes are provided on the protrusions, mounting blocks are symmetrically arranged on the second mounting plate, and knob plungers are mounted on the mounting blocks through the mounting holes, and the knob plungers are arranged corresponding to the fastening holes.

6. In this way, the first mounting plate and the second mounting plate are fixedly installed on the packing box, and the packing box can be locked by the cooperation of the rotating and installed locking plate and the knob plunger, even if the packing box is hit or impacted, the plunger can be locked. The head will not slip out of the lock hole, only by manually turning the knobs of the two knob plungers 90 at the same time

Only then can the plunger head be disengaged from the lock hole, thereby opening the packing box.

7. Further, a plurality of mounting grooves are provided on both the first mounting plate and the second mounting plate. Through the installation groove, the first installation plate and the second installation plate can be firmly installed on the packaging box, and the slot-type installation groove can satisfy different installation holes on the packaging box.

8. Further, a reinforcing rib is provided at the bend of the locking plate. The bending part of the locking plate is made firmer by the reinforcing ribs, and the strength of the locking plate is improved.

9. Further, a tension spring is provided between the locking plate and the first mounting plate. The locking plate is facilitated to rotate to the locked position by the tension spring.

10. Further, a reinforcement shaft is arranged between the protrusions. By reinforcing the shaft, the strength of the catch plate can be increased.

11. To sum up, the utility model can better fasten and lock the packing box, the structure is simple, the installation is easy, the volume is small, the weight is light, it can bear a large pulling force, and it is convenient to use.

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