Protective box lock catch and protective box

Abstract

The utility model relates to a protective box lock catch which comprises a connecting base and a fixing claw, the upper portion of the connecting base is rotationally connected with a fixing pin shaft, the middle of the connecting base is rotationally connected with the lower end of the fixing claw, a bent buckling part is arranged at the upper end of the fixing claw, and a telescopic clamping column is arranged on the connecting base. The telescopic clamping column is embedded in the connecting base, an elastic piece is arranged at the connecting position, and when the buckling part is clamped and fixed, the telescopic clamping column can be connected with the outer side of the lower end of the fixing claw. By arranging the connecting base and the fixing claw, meanwhile, the fixing pin shaft is arranged on the upper portion of the connecting base, the lower end of the fixing claw is connected with the connecting base, the fixing claw can be fastened and fixed through rotation of the connecting base, and operation is convenient; the fixing claw and the connecting base are fixed by connecting the telescopic clamping column with the side face of the fixing claw, loosening is avoided, unlocking can be conducted by pressing the telescopic clamping column, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of protective boxes, in particular to a protective box lock catch and a protective box. BACKGROUND

[0002] The protective box is used for placing some valuable equipment, such as control instruments, unmanned aerial vehicles and other precision instruments, and can play a better protection role. The existing protective box generally has a box body and a box cover which can be opened and closed relative to the box body, and a lock catch structure is arranged on the box body and the box cover to lock the box body and the box cover. The lock catch in the prior art mainly comprises a clamping part and a buckling part. For example, a box lock catch is disclosed in Chinese Patent No. CN207526262U and published on June 22, 2018, which is used for locking a box body and comprises a base, an upper claw and a lower claw. A rotating shaft is arranged on the lower box body and connected with the base, and the base can rotate relative to the lower box body. One end of the upper claw has a clamping part which can clamp the upper box body, and the other end of the upper claw is connected with the base through a pin shaft, and the upper claw can rotate relative to the base. The lower claw is connected with the base through a pin shaft, and the lower claw can slide up and down relative to the base. One end of the lower claw is provided with a clamping hook which can clamp the lower box body to realize the locking of the box body.

[0003] In the above-mentioned related technology, a lower claw which can slide is arranged on the base, and a clamping hook is arranged on the lower claw to fix the upper and lower box bodies. According to the above-mentioned related technology, the inventor believes that the structure is relatively complex and the failure rate is high, so it is necessary to design a protective box lock catch and a protective box which are simple in structure and convenient to use. CONTENT OF THE UTILITY MODEL

[0004] The application provides a protective box lock catch which is simple in structure and convenient to use.

[0005] The application provides a protective box lock catch which adopts the following technical scheme:

[0006] A protective box lock catch comprises a connecting seat and a fixing claw. The upper part of the connecting seat is rotationally connected with a fixing pin shaft. The middle part of the connecting seat is rotationally connected with the lower end of the fixing claw. The upper end of the fixing claw is provided with a curved buckling part. An extension clamping column is arranged on the connecting seat and embedded in the connecting seat, and an elastic element is arranged at the connecting position. When the buckling part is clamped and fixed, the extension clamping column can be connected with the outer side of the lower end of the fixing claw.

[0007] Preferably, the connecting seat is in the form of a square block. A groove is arranged on one side of the connecting seat, and a rib plate is arranged in the groove. A fixing hole is arranged through the connecting seat and the rib plate, and a fixing shaft is arranged in the fixing hole. The fixing claw is rotationally connected with the fixing shaft. The extension clamping column is arranged on the rib plate and is arranged in an inclined manner.

[0008] Preferably, the connecting seat is provided with a round corner at the upper end and the lower end of the side away from the fixing claw.

[0009] Preferably, the lower end of the connecting seat is provided with a pressing plate, the pressing plate is an arc-shaped plate and is outwardly curved, and the front and rear sides of the pressing plate are provided with anti-skid convex parts.

[0010] Preferably, the fixing claw is an arc-shaped plate, the lower end of the fixing claw is provided with a plurality of connecting convex parts, the connecting convex parts are arranged at intervals with the rib plate, and the connecting convex parts are provided with fixing holes.

[0011] Preferably, the buckling part is inwardly curved, the top of the buckling part is provided with a release convex part, and the height of the release convex part gradually increases from inside to outside.

[0012] Preferably, the rib plate is internally provided with a groove, the groove is internally provided with the elastic member, the elastic member is a spring, the telescopic clamping column is a square column, the side surface of the telescopic clamping column is connected with the fixing claw, and the end of the telescopic clamping column is provided with a round corner or a chamfer.

[0013] The application also provides a protective box comprising the protective box lock buckle, and further comprising a box body and a box cover connected in rotation, the fixing pin shaft is arranged on the box body, the buckling part can be clamped with the box cover, and the box body is provided with a telescopic pull rod and a roller.

[0014] In summary, the application has at least one of the following beneficial technical effects:

[0015] 1. The application sets the connecting seat and the fixing claw, sets the fixing pin shaft on the upper part of the connecting seat, connects the lower end of the fixing claw with the connecting seat, can clasp and fix the fixing claw through the rotation of the connecting seat, is convenient to operate, sets the telescopic clamping column on the connecting seat, can realize the fixation of the fixing claw and the connecting seat through the abutment of the telescopic clamping column with the side surface of the fixing claw when the buckling part is clamped and fixed, avoids loosening, and can also be unlocked by pressing the telescopic clamping column, which is convenient to operate.

[0016] 2. The recess is arranged on the side surface of the connecting seat, the rib plate is arranged in the recess, the fixing hole is arranged on the rib plate and the connecting seat, the fixing claw can be rotatably connected with the fixing hole, the telescopic clamping column is arranged in the rib plate and is square, the side surface of the telescopic clamping column can be connected with the side surface of the fixing claw, the fixing effect is ensured, the round corner or chamfer at the end of the telescopic clamping column facilitates the loosening of the telescopic clamping column and the fixing claw, the round corner is arranged at the upper end and the lower end of the side of the connecting seat away from the fixing claw, which facilitates the rotation of the connecting seat, the pressing plate and the anti-skid convex part are arranged at the lower end of the connecting seat, which facilitates the upward pulling and the downward pressing of the connecting seat.

[0017] 3. By setting the fixing claw as an arc-shaped plate, and setting a connecting protrusion at the lower end of the fixing claw, connection with the rib plate is facilitated, and by setting a release protrusion at the top of the buckling portion, the fixing claw can be pulled by the release protrusion, facilitating unlocking. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the protective box lock catch in the preferred embodiment of the present application.

[0019] Figure 2 is a perspective view of the protective box lock catch in the preferred embodiment of the present application.

[0020] Figure 3 is a side view of the protective box lock catch in the preferred embodiment of the present application.

[0021] Figure 4 is a structural schematic view of the connecting seat in the preferred embodiment of the present application.

[0022] Figure 5 is a structural schematic view of the fixing claw in the preferred embodiment of the present application.

[0023] Figure 6 is a structural schematic view of the protective box in the preferred embodiment of the present application.

[0024] Figure 7 is a structural schematic view of the protective box in the preferred embodiment of the present application.

[0025] Reference Signs List: 1, connecting seat; 101, rib plate; 102, pressing plate; 2, fixing claw; 201, buckling portion; 202, connecting protrusion; 203, release protrusion; 3, fixing pin shaft; 4, telescopic clamping column; 5, elastic member; 6, box body; 7, box cover; 8, telescopic pull rod; 9, roller. DETAILED DESCRIPTION

[0026] The present application will be further described in detail below with reference to the accompanying drawings.

[0027] The present application discloses a protective box lock catch.

[0028] Embodiment One:

[0029] Reference Figures 1 to 5The utility model provides a kind of protective case lock catch, including connecting seat 1 and fixed jaw 2, the upper portion of connecting seat 1 is rotatably connected with fixed pin shaft 3, the middle part of connecting seat 1 is rotatably connected with the lower end of fixed jaw 2, specifically, connecting seat 1 is square block structure, the upper end and the lower end of the side of connecting seat 1 away from fixed jaw 2 are provided with round corner, the other side of connecting seat 1 is provided with recess and is provided with rib 101 in recess, fixed hole is provided on connecting seat 1 and rib 101, fixed shaft is provided in fixed hole and is rotatably connected with fixed jaw 2 by fixed shaft, the upper end of fixed jaw 2 is provided with curved buckle portion 201, retractable clamping column 4 is provided on connecting seat 1, retractable clamping column 4 is embedded in connecting seat 1 and is provided with elastic element 5 at connecting portion, when buckle portion 201 is clamped tightly, retractable clamping column 4 can be connected with the outside of the lower end of fixed jaw 2;

[0030] Refer to Figure 4 , retractable clamping column 4 is provided on rib 101 and is inclined, specifically, recess is provided in rib 101 and is provided with elastic element 5 in recess, elastic element 5 is spring, retractable clamping column 4 is square column and the side of retractable clamping column 4 is connected with fixed jaw 2, the side of retractable clamping column 4 in the embodiment is provided with buckle and is positioned in recess by buckle, the end of retractable clamping column 4 is provided with round corner or chamfer;The lower end of connecting seat 1 is provided with pressing plate 102, and the pressing plate 102 is an arc-shaped plate and is outwardly curved, the front and rear sides of the pressing plate 102 are provided with anti-skid convex parts, and the pressing plate 102 is provided to facilitate pressing or pulling the connecting seat 1, facilitating unlocking.

[0031] Refer to Figures 1 to 5 , fixed jaw 2 is an arc-shaped plate, and the lower end of the fixed jaw 2 is provided with a plurality of connecting convex parts 202, which are spaced apart from the rib 101, and the connecting convex parts 202 are provided with fixed holes, the buckle portion 201 is inwardly curved, the top of the buckle portion 201 is provided with a release convex part 203, the height of the release convex part 203 gradually increases from inside to outside, facilitating the release of the fixed jaw 203 through the release convex part 203.

[0032] Embodiment two:

[0033] Refer to Figure 6 And Figure 7 The utility model provides a kind of protective case, including above-mentioned protective case lock catch, still include the box body 6 and box cover 7 of rotatable connection, fixed pin shaft 3 is arranged on box body 6, buckle portion 201 can be clamped with box cover 7, retractable pull rod 8 and gyro wheel 9 are provided on box body 6, specifically, box and box cover 7 are provided with multiple connecting seat 1 and fixed jaw 2 in the embodiment.

[0034] The implementation principle is that the connecting seat 1 and the fixing claw 2 are arranged, the fixing pin shaft 3 is arranged on the upper part of the connecting seat, the lower end of the fixing claw 2 is connected with the connecting seat 1, the fixing claw 2 can be buckled and fixed through the rotation of the connecting seat 1, the operation is convenient, the telescopic clamping column 4 is arranged on the connecting seat 1, when the buckling part 201 is clamped and fixed, the fixing of the fixing claw 2 and the connecting seat 1 is realized through the abutment of the telescopic clamping column 4 and the side surface of the fixing claw 2, the loosening is avoided, the structure is added, and the operation is convenient.

[0035] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A security case lock catch characterised in that: The utility model provides a box lock buckle, including connecting seat (1) and fixed jaw (2), the upper portion of connecting seat (1) is rotatably connected with fixed pin shaft (3), and the middle part of connecting seat (1) is rotatably connected with the lower end of fixed jaw (2), and the upper end of fixed jaw (2) is provided with the curved buckling part (201), and the retractable clamping column (4) is arranged on connecting seat (1), and the retractable clamping column (4) is embedded in connecting seat (1) and is provided with elastic element (5) at the connecting place, when the buckling part (201) is clamped and fixed, the retractable clamping column (4) can be connected with the outside of the lower end of fixed jaw (2).

2. A security case lock catch according to claim 1, wherein: The connecting seat (1) is a square block structure, one side of the connecting seat (1) is provided with a groove, and a rib plate (101) is arranged in the groove, the connecting seat (1) and the rib plate (101) are provided with a fixed hole in penetration, a fixed shaft is arranged in the fixed hole, the fixed jaw (2) is rotatably connected with the fixed shaft, the rib plate (101) is provided with the retractable clamping column (4), and the retractable clamping column (4) is arranged obliquely.

3. A security case lock catch according to claim 2, wherein: The rib plate (101) is provided with a groove inside, and the elastic element (5) is arranged in the groove, the elastic element (5) is a spring, the retractable clamping column (4) is a square column, the side surface of the retractable clamping column (4) is connected with the fixed jaw (2), and the end of the retractable clamping column (4) is provided with a round corner or a chamfer.

4. The security case lock catch of claim 1, wherein: The upper end and the lower end of the side, away from the fixed jaw (2), of the connecting seat (1) are provided with round corners.

5. The security case lock catch of claim 1, wherein: The lower end of the connecting seat (1) is provided with a pressing plate (102), the pressing plate (102) is an arc-shaped plate and is outwardly curved, and anti-skid convex parts are arranged on the front and back sides of the pressing plate (102).

6. The security case lock catch of claim 2, wherein: The fixed jaw (2) is an arc-shaped plate, the lower end of the fixed jaw (2) is provided with a plurality of connecting convex parts (202), the connecting convex parts (202) are arranged at intervals with the rib plate (101), and the connecting convex parts (202) are provided with fixed holes.

7. The security case lock catch of claim 1, wherein: The buckling part (201) is inwardly curved, the top of the buckling part (201) is provided with a release convex part (203), and the height of the release convex part (203) gradually increases from inside to outside.

8. A protection case characterized by: The utility model provides a box lock buckle, including the box lock buckle of any one of claims 1-7, further including a rotatably connected box body (6) and a box cover (7), the fixed pin shaft (3) is arranged on the box body (6), the buckling part (201) can be clamped with the box cover (7), and the retractable pull rod (8) and the roller (9) are arranged on the box body (6).

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