CN216974497U

CN216974497U - Lock catch structure and safety protection box

Info

Publication number: CN216974497U
Application number: CN202220464652.0U
Authority: CN
Inventors: 王键学
Original assignee: Guangdong Nanguang Television Equipment Co ltd
Current assignee: Guangdong Nanguang Television Equipment Co ltd
Priority date: 2022-03-05
Filing date: 2022-03-05
Publication date: 2022-07-15
Anticipated expiration: 2032-03-05

Abstract

The utility model belongs to the field of luggage accessories and luggage, and discloses a latch structure and a safety protection case, which comprise a latch main body hinged on a case cover, a sliding block capable of sliding back and forth along the latch main body, an elastic piece for resetting the sliding block and a clamping hook with an inclined outer wall, wherein the left side surface and the right side surface of the sliding block are respectively provided with clamping rods extending and protruding towards the left side and the right side, the clamping hook is arranged on the case body, and the clamping hook comprises two clamping rods which respectively correspond to the clamping rods on the left side and the right side and are respectively used for hooking the corresponding clamping rods. The utility model arranges the hook in the box body, the clamping rod is arranged on the side surface of the sliding block, so that the clamping rod and the sliding block are basically at the same height, in the locking process, when the clamping rod contacts with the outer wall of the hook, the moment borne by the sliding block is greatly reduced, the friction is smaller, the sliding block slides more smoothly, and meanwhile, the structure is simpler, the production and the manufacture are convenient, and the cost is reduced.

Description

Lock catch structure and safety protection box

Technical Field

The utility model relates to the field of luggage accessories, in particular to a lock catch structure and a safety protection case with the lock catch structure.

Background

The safety protection box is used for placing some expensive equipment such as lamps and 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 in a rotating mode, 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 existing protective box locking structure is different from the existing protective box locking structure, and mainly comprises a buckle hinged with a box cover, a sliding block in sliding fit with the buckle and a reset mechanism for resetting the sliding block, wherein the sliding block is provided with a clamping hook of which the outer wall is in a slope surface shape, when the buckle is pressed, the outer wall of the clamping hook is in contact with a vertical plate and slides relatively until a hook opening of the clamping hook is embedded with the vertical plate, and self-locking is completed under the action of the reset mechanism. In the structure, the hook is arranged on the sliding block, and particularly extends from the lower surface of the sliding block to form the hook, so that the outer wall of the hook is far away from the sliding block. In the locking process, when the buckle is pressed to enable the outer wall of the clamping hook to be in contact with the vertical plate, the torque of the sliding block can be increased, the sliding friction force of the sliding block along the buckle is increased, and the sliding clamping stagnation is not smooth. For reducing the clamping stagnation of sliding, the guide rod needs to be arranged in the buckle in the prior art, so that the sliding block moves along the guide rod to reduce the friction force, but the whole structure becomes complex, the assembly and the production are inconvenient, and the cost is higher.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the lock catch structure which is smooth in locking and simple in structure.

The technical scheme adopted by the utility model for solving the problems is as follows:

the utility model provides a latch structure, includes the hasp main part that articulates on the case lid, locate on the hasp main part and can be around gliding slider, the elastic component that makes the slider reset and have the pothook of slope outer wall, the left surface and the right flank of slider are provided with respectively and extend convex kelly to left side and right side, the pothook sets up on the box, the pothook is including two and correspond with the kelly of the left and right sides respectively, is used for hooking the kelly that corresponds with it respectively.

According to the technical scheme, the slider is fixedly connected with a hard rod, two end parts of the hard rod respectively protrude out of the left side surface and the right side surface of the slider, and the clamping rods on the left side and the right side of the slider are respectively formed by two end parts of the hard rod.

Further improved technical scheme, the hard rod is connected to the sliding block through injection molding wrapping or interference fit.

According to the further improved technical scheme, the middle section of the hard rod is also provided with a knurled reticulate pattern.

According to the further improved technical scheme, a limiting hole used for limiting the elastic piece is formed in the front end of the sliding block, and the axis of the hard rod is intersected with or close to the axis of the limiting hole.

According to the technical scheme, the limiting holes are arranged side by side in the left-right direction of the sliding block, and the number of the elastic pieces is the same as that of the limiting holes and the elastic pieces are arranged in the limiting holes respectively.

According to the technical scheme, the left side and the right side of the lock catch main body are provided with opening cavities with downward openings, and the opening cavities are arranged around the clamping rod and used for accommodating the clamping hooks corresponding to the clamping rod.

The utility model also provides a safety protection box, which comprises a box body and a box cover capable of being opened and closed in a rotating mode relative to the box body, wherein the box cover and the box body are provided with the lock catch structures in any one of the technical schemes.

According to the technical scheme, the box body is provided with first reinforcing ribs at the positions outside the two clamping hooks, and the first reinforcing ribs are attached to the outer side faces of the clamping hooks and are of an integrated structure.

According to the technical scheme, the box cover is provided with second reinforcing ribs on the positions of two sides of the lock catch main body, the lock catch main body is hinged to the second reinforcing ribs through a rotating shaft, and the rotating shaft is connected to the second reinforcing ribs through knurling fit or interference fit.

The utility model has the beneficial effects that: the utility model arranges the hook on the box body, the hook does not need to extend from the lower surface of the sliding block as the prior art, and the clamping rod is arranged on the side surface of the sliding block, so that the clamping rod and the sliding block are basically at the same height.

Drawings

FIG. 1 is an exploded perspective view of the safety shield and latch arrangement of the present invention;

FIG. 2 is an enlarged schematic view at A of FIG. 1;

fig. 3 is an exploded perspective view of the locking structure of the present invention.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be clearly and completely described in the following with reference to the embodiments and the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention. The technical characteristics in the utility model can be interactively combined to form a new embodiment on the premise of not conflicting with each other.

Referring to fig. 2 and 3, a latch structure for a safety protection box includes a latch main body 1 hinged to a box cover 100, a slider 2 disposed on the latch main body 1, the slider 2 being capable of sliding back and forth along the latch main body 1, an elastic member 3 for restoring the slider 2, and a latch hook 4 having an inclined outer wall, the elastic member 3 preferably being a spring, both ends of which abut against the latch main body 1 and the slider 2, and the elastic member 2 being pushed to restore by elasticity. In practice, the slider 2 is placed in the cavity 12 of the main body 1 and can slide back and forth in the cavity 12, and a bottom plate 13 is fixedly fastened to the main body 1 by screws to cover the opening of the cavity 12. Furthermore, the left side and the right side of the sliding block 2 are both provided with clamping rods, so that the clamping rods on the two sides are respectively provided with a convex structure which extends towards the left side and the right side to form a hook hooked by the clamping hook 4. The hook 4 is arranged on the box body 200, the two hooks 4 respectively correspond to the clamping rods on the left side and the right side, and after the lock catch main body 1 is pressed, the clamping rods can be in contact with the inclined outer walls of the clamping rods 4 and move under the action of the inclined surface component force of the inclined outer walls until the clamping rods are lower than the hook parts of the hooks 4, and the clamping rods are reset to enter the hook parts of the clamping rods 4 under the elastic force of springs, so that clamping and locking are completed. The two hooks 4 are used for hooking the corresponding clamping rods respectively, and the two corresponding clamping rods and the hooks 4 are adopted, so that the clamping rods and the sliding block 2 are stressed uniformly in the locking process, and the sliding smoothness of the sliding block 2 is further improved. As in the prior art, after the latch is locked, the pressing plate 13 on the latch body 1 may press the box body 200, so that the box body 200 and the box cover 100 are tightly attached to each other, and a good sealing effect is ensured.

Referring to fig. 3, a hard rod 5 is fixedly connected to the slider 2, and two ends of the hard rod 5 protrude from the left side surface and the right side surface of the slider 2, respectively, so that the two protruding ends of the hard rod 5 form two clamping rods on the left side and the right side of the slider 2. The structure can improve the structural strength of the clamping rod and ensure the use reliability. In fact, this stereoplasm pole 5 is through moulding plastics the parcel on slider 2, perhaps connects on slider 2 through interference fit, for further improving the firm degree that stereoplasm pole 5 and slider 2 are connected, is provided with the annular knurl reticulation in the middle section of stereoplasm pole 5. The hard rod 5 is preferably made of steel, and the surface of the hard rod can be further subjected to rust prevention treatment, so that the hard rod can be used for a long time in a humid and severe environment.

In a preferred embodiment, referring to fig. 3, the elastic member 3 is a cylindrical spring, and in order to ensure that the position of the cylindrical spring is kept fixed during use, a limiting hole 21 is formed at the front end of the sliding block 2, and a part of the cylindrical spring is placed in the limiting hole 21 to limit the cylindrical spring. The elastic force direction of the spring is perpendicular to the inner bottom surface of the limiting hole 21, so that the sliding block 2 slides more smoothly when locked, the hard rod 5 is arranged to be as high as possible as the limiting hole 21, specifically, the axis of the hard rod 5 is intersected with the axis of the limiting hole 21 or the two are close to each other as possible, and therefore the moment applied to the sliding block 2 in the locking process is reduced, and the friction force is reduced. In addition, one limiting hole 21 can be arranged and is positioned in the middle of the front end face of the sliding block 2; preferably, two elastic members 3 may be provided, which are arranged side by side along the left-right direction of the slider 2, and are respectively disposed in the two limiting holes 21. The two limit holes 21 and the elastic element 3 can make the force applied on the sliding block 2 more uniform.

In addition, in order to make the structure of the lock catch structure more compact, the left and right sides of the lock catch main body 1 are both provided with an opening cavity 11 for accommodating the clamping hook 4 corresponding to the opening cavity, and the opening cavity 11 is arranged around the clamping rod and provided with a downward opening. When the lock catch structure is locked, the clamping hook 4 enters the opening cavity 11 from the opening, and finally the clamping rod is hooked to complete locking, so that the clamping hook 4 is accommodated in the cavity and is closer to the lock catch main body 1, and the whole structure is more compact.

The utility model also provides a technical scheme of the safety protection box, which comprises a box body 200 and a box cover 100, wherein the box cover 100 is hinged on the box body 200 and can rotate to open and close relative to the box body 200. The main improvement is that any one of the lock catch structures is arranged on the box body 200 and the box cover 100, so that the box cover 100 can be conveniently locked with the box body 200 after being covered.

In the above-mentioned safety protection box, box 200 all is provided with first strengthening rib 201 in the position in two pothooks 4 outsides, first strengthening rib 201 laminating pothook 4 lateral surface and the formula structure as an organic whole with it can not only improve the strong structure degree of box 200 itself, can also improve pothook 4's structural strength greatly. Further, the case cover 100 is provided with second reinforcing ribs 101 at positions on two sides of the latch main body 1, and the latch main body 1 is hinged to the second reinforcing ribs 101 through the rotating shaft 6. In the actual structure, the rotating shaft 6 is connected to the second reinforcing rib 101 by knurling fit or interference fit. The arrangement of the first reinforcing rib 201 and the second reinforcing rib 101 not only improves the structural strength, but also enables the whole lock catch to be hidden between the reinforcing ribs after the lock catch is locked, so that the whole lock catch is not obtrusive and more attractive. Of course, the locking structure is generally two as in the prior art, and the first reinforcing rib 201 and the second reinforcing rib 101 matched with the locking structure are provided with four channels. The double-locking structure can more firmly lock the cover 100 and the case 200.

It should be noted that the above-mentioned embodiments are only used for further illustration of the present invention, and should not be construed as limiting the scope of the present invention, and if the present technology is simply modified, the objects of the present invention can be achieved by substantially the same means, and all of the objects should fall within the scope of the present invention.

Claims

1. The utility model provides a hasp structure, includes to articulate hasp main part (1) on case lid (100), locate on hasp main part (1) and gliding slider (2) around and, elastic component (3) that make slider (2) reset and pothook (4) that have the slope outer wall, its characterized in that: the left side and the right side of slider (2) are provided with respectively and extend convex kelly to left side and right side, pothook (4) set up on box (200), pothook (4) just correspond with the kelly of the left and right sides respectively including two, are used for hooking the kelly that corresponds with it respectively.

2. A latch construction according to claim 1, wherein: the slider (2) is fixedly connected with a hard rod (5), two end parts of the hard rod (5) respectively protrude out of the left side surface and the right side surface of the slider (2), and clamping rods on the left side and the right side of the slider (2) respectively consist of two end parts of the hard rod (5).

3. A latch construction according to claim 2, wherein: the hard rod (5) is connected to the sliding block (2) through injection molding and wrapping or interference fit.

4. A latch construction according to claim 3, wherein: and the middle section of the hard rod (5) is also provided with a knurled reticulate pattern.

5. A latch construction according to claim 2, wherein: the front end of the sliding block (2) is provided with a limiting hole (21) used for limiting the elastic part (3), and the axis of the hard rod (5) is intersected with or close to the axis of the limiting hole (21).

6. A latch construction according to claim 5, wherein: the limiting holes (21) are arranged side by side in the left-right direction of the sliding block (2), and the number of the elastic pieces (3) is the same as that of the limiting holes (21) and the elastic pieces are arranged in the limiting holes (21) respectively.

7. A latch construction according to any one of claims 1 to 6, further comprising: the left side and the right side of the lock catch main body (1) are provided with opening cavities (11) with downward openings, and the opening cavities (11) are arranged around the clamping rod and used for accommodating clamping hooks (4) corresponding to the clamping rod.

8. The utility model provides a safety protection case, includes box (200) and can rotate case lid (100) of switching, its characterized in that relative box (200): the box cover (100) and the box body (200) are provided with the lock catch structure according to any one of the claims 1 to 7.

9. A safety shield according to claim 8, wherein: the box body (200) is provided with first reinforcing ribs (201) at the positions outside the two hooks (4), and the first reinforcing ribs (201) are attached to the outer side surfaces of the hooks (4) and are of an integrated structure.

10. A safety shield according to claim 8, wherein: the box cover (100) is provided with second reinforcing ribs (101) at positions on two sides of the lock catch main body (1), the lock catch main body (1) is hinged to the second reinforcing ribs (101) through a rotating shaft (6), and the rotating shaft (6) is connected to the second reinforcing ribs (101) through knurling fit or interference fit.