Plastic hasp capable of quickly self-locking

Abstract

The utility model provides a plastic hasp capable of quickly self-locking, which comprises a primary hasp and a secondary hasp, and one side of the primary hasp is provided with a groove matched with the secondary hasp for use. The utility model relates to the technical field of plastic hasps. According to the plastic hasp capable of achieving rapid self-locking, by arranging the self-locking mechanism, a pressing block can be pushed downwards to drive a pressing rod and a driving block to move downwards, the driving block can drive a transmission rod to move downwards, and when the transmission rod moves downwards, the surface of the transmission rod can extrude the bevel edge part of the inner wall of a transmission groove; the transmission block and the moving block move along the tracks of the limiting block and the limiting groove, the moving block can drive the self-locking rod to retract into the matching groove, at the moment, the son buckle is clamped in the groove, the pressing block is loosened, elastic force generated by the spring can push the moving block and the self-locking rod to reset, the self-locking rod enters the self-locking hole, and self-locking of the plastic hasp is completed; and meanwhile, the connection stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic buckles, and specifically relates to a plastic buckle that can be quickly self-locked. Background Technique

[0002] A buckle usually consists of two parts, generally a buckle with a protrusion and a matching groove part. Through the combination of the buckle, the functions of fixing and connecting can be realized. A plastic buckle is a kind of buckle made of plastic.

[0003] A plastic buckle that can be quickly self-locked provided by the publication number "CN216944353U" includes a wrench, a locking tongue and a wrench cover. The outer side of the bottom of the wrench is provided with a wrench cover, and a locking tongue is installed between the wrench and the wrench cover. The locking tongue is connected to the wrench through a sliding pin column. The pressing part of the locking tongue passes through the wrench and is installed on the wrench. A spring is provided between the bottom of the locking tongue and the wrench cover. The overlapping part of the locking tongue and the box body passes through the wrench cover and is installed on the wrench cover. The utility model can realize self-locking. When the box cover of the buckle box body is buckled, the self-locking mechanism acts to realize reliable self-locking, and the buckle can only be opened after unlocking; the operation is fast and convenient, the buckling action is simple and fast. The opening action is simple, fast and reliable. The utility model solves the problems that the traditional buckle buckling operation is complex, the existing plastic buckle cannot be self-locked, and it is not conducive to realizing automatic production.

[0004] However, the following problems still exist in the implementation of the above device:

[0005] The plastic buckles in the prior art are generally fixed by a clamping method, which is more suitable for some smaller packaging boxes. However, for some packaging boxes with large volume and high specific gravity, it is very difficult to ensure the connection stability between the box cover and the box body only by the clamping method. When the packaging box drops and the box body is deformed to a certain extent, the plastic buckle will come off, thereby reducing the practicability of the plastic buckle. Content of the Utility Model

[0006] The purpose of the utility model is to provide a plastic buckle that can be quickly self-locked to solve the problems put forward in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A plastic buckle that can be quickly self-locked includes a female buckle and a male buckle. A groove for cooperating with the male buckle is provided on one side of the female buckle. A mating groove is provided inside the male buckle, and a self-locking mechanism is arranged inside the mating groove. A pressing groove is provided on one side of the male buckle, and an anti-misoperation mechanism is arranged inside the pressing groove;

[0009] The self-locking mechanism includes a spring disposed inside the mating groove. Both ends of the spring are fixedly connected with moving blocks. One side of each moving block is fixedly connected with two self-locking rods. One end of each self-locking rod penetrates into the inside of the groove. The inner wall of the groove is provided with self-locking holes for cooperating with the self-locking rods. A driving block is arranged on the top of the spring. One side of the driving block is fixedly connected with two transmission rods. A transmission block is sleeved on the surface of each transmission rod. One side of the transmission block is fixedly connected with one side of the moving block. The top of the driving block is fixedly connected with a pressing rod. One end of the pressing rod penetrates into the inside of the pressing groove and is fixedly connected with a pressing block.

[0010] By providing the self-locking mechanism, it is possible to drive the pressing rod and the driving block to move downward by pushing the pressing block downward. The driving block will drive the transmission rods to move downward. While the transmission rods move downward, the inner wall of the transmission groove at the hypotenuse part will be squeezed by their surfaces, causing the transmission blocks and the moving blocks to move along the trajectories of the limiting blocks and the limiting grooves. The moving blocks will drive the self-locking rods to retract into the mating groove. At this time, the sub-fastener is snapped into the groove. Release the pressing block, and the elastic force generated by the spring will push the moving blocks and the self-locking rods to reset, so that the self-locking rods enter the self-locking holes, completing the self-locking of the plastic buckle and improving the connection stability at the same time.

[0011] Preferably, the anti-misoperation mechanism includes a protection plate. Two sliding blocks are fixedly connected to the inner wall of the pressing groove. Protection shells for cooperating with the sliding blocks are opened on both sides of the protection plate. One side of the protection plate is fixedly connected with an elastic sheet. An embedding groove for cooperating with the elastic sheet is opened on the inner wall of the pressing groove.

[0012] By providing the anti-misoperation mechanism, after the sub-fastener and the mother-fastener are locked by the self-locking mechanism, the protection plate can be pushed to move the protection plate along the sliding blocks and the sliding grooves until the elastic sheet enters the embedding groove, completing the restriction of the protection plate. The protection plate will cover the pressing groove to avoid accidentally touching the pressing block, playing a role in preventing misoperation.

[0013] Preferably, the elastic sheet is made of brass and is arc-shaped.

[0014] By providing the elastic sheet, by designing the shape of the elastic sheet to be arc-shaped, when the protection plate drives the arc part of the elastic sheet to contact the inner wall of the embedding groove, the elastic sheet will deform, and then it will abut against the inner wall of the embedding groove after entering the embedding groove to limit the protection plate. At the same time, to remove the protection plate, only a certain force needs to be applied to make the elastic sheet leave the inside of the embedding groove.

[0015] Preferably, anti-slip lines are opened on the top of the protection plate, and the number of the anti-slip lines is several.

[0016] By providing the anti-slip lines, it is convenient for the user to push the protection plate to move, playing a role in increasing the friction force.

[0017] Preferably, a transmission groove for cooperating with the transmission rod is formed at the top of the transmission block, and the inner wall of the transmission groove is in a slope shape.

[0018] By providing the transmission groove, when the transmission rod moves downward and contacts the hypotenuse of the inner wall of the transmission groove, it can drive the transmission block, the moving block and the self-locking rod to move, playing a role in transmission.

[0019] Preferably, a limiting block is fixedly connected to the bottom of the moving block, and a limiting groove for cooperating with the limiting block is formed in the inner wall of the mating groove.

[0020] By providing the limiting block and the limiting groove, when the transmission rod presses the inner wall of the transmission groove to drive structures such as the moving block, the movement of structures such as the moving block can be restricted to move only along the trajectories of the limiting block and the limiting groove.

[0021] Preferably, the pressing block is arc-shaped.

[0022] By setting the pressing block to be arc-shaped, the shape of the pressing block can fit the shape of the finger, thus facilitating the user to push the pressing block to move.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] 1. By providing the self-locking mechanism in the present utility model, by pushing the pressing block downward, the pressing rod and the driving block can be driven to move downward. The driving block will drive the transmission rod to move downward. While the transmission rod moves downward, the surface thereof will press the hypotenuse part of the inner wall of the transmission groove, so that the transmission block and the moving block move along the trajectories of the limiting block and the limiting groove. The moving block will drive the self-locking rod to retract into the mating groove. At this time, the sub-button is snapped into the groove. When the pressing block is released, the elastic force generated by the spring will push the moving block and the self-locking rod to reset, so that the self-locking rod enters the self-locking hole, completing the self-locking of the plastic fastener and improving the connection stability at the same time.

[0025] 2. By providing the anti-misoperation mechanism in the present utility model, after the sub-button and the mother button are locked by the self-locking mechanism, the protection plate can be pushed to move along the sliding block and the sliding groove until the elastic piece enters the embedding groove, completing the restriction of the protection plate. The protection plate will cover the pressing groove, avoiding accidental contact with the pressing block and playing a role in preventing misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0027] Figure 2 is a three-dimensional view of the main structure of the present utility model unfolded;

[0028] Figure 3 is the present utility modelFigure 2 Partial enlarged view at position A in the [Chinese context];

[0029] Figure 4 Stereogram of the cross-section of the main structure of the present utility model;

[0030] Figure 5 Stereogram of the partial structure of the self-locking mechanism of the present utility model.

[0031] In the figure: 1, female buckle; 2, male buckle; 3, groove; 4, mating groove; 5, pressing groove; 6, spring; 7, moving block; 8, self-locking rod; 9, self-locking hole; 10, driving block; 11, transmission rod; 12, transmission block; 13, pressing rod; 14, pressing block; 15, protective plate; 16, sliding block; 17, protective shell; 18, elastic piece; 19, embedding groove; 20, anti-slip pattern; 21, transmission groove; 22, limiting block; 23, limiting groove. Specific implementation mode

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0033] Please refer to Figure 1 - Figure 5 , the present utility model provides a technical solution:

[0034] Embodiment 1:

[0035] A plastic buckle that can be quickly self-locked, including a female buckle 1 and a male buckle 2. A groove 3 for cooperating with the male buckle 2 is opened on one side of the female buckle 1. A mating groove 4 is opened inside the male buckle 2, and a self-locking mechanism is arranged inside the mating groove 4. A pressing groove 5 is opened on one side of the male buckle 2, and an anti-misoperation mechanism is arranged inside the pressing groove 5;

[0036] The self-locking mechanism includes a spring 6 arranged inside the mating groove 4. Both ends of the spring 6 are fixedly connected with a moving block 7. Two self-locking rods 8 are fixedly connected to one side of the moving block 7. One end of the self-locking rod 8 penetrates into the inside of the groove 3, and a self-locking hole 9 for cooperating with the self-locking rod 8 is opened on the inner wall of the groove 3. A driving block 10 is arranged on the top of the spring 6. Two transmission rods 11 are fixedly connected to one side of the driving block 10. A transmission block 12 is sleeved on the surface of the transmission rod 11. One side of the transmission block 12 is fixedly connected with one side of the moving block 7. A pressing rod 13 is fixedly connected to the top of the driving block 10. One end of the pressing rod 13 penetrates into the inside of the pressing groove 5 and is fixedly connected with a pressing block 14.

[0037] In this example, considering that when some large-sized and high-specific-gravity packaging boxes are in use, it is very difficult to ensure the connection stability between the box cover and the box body only by means of snap connection. When the packaging box drops and the box body has a certain deformation, the plastic buckle will come off, thereby reducing the practicality of the plastic buckle. Therefore, by setting a self-locking mechanism, the pressing block 14 can be pushed downward to drive the pressing rod 13 and the driving block 10 to move downward. The driving block 10 will drive the transmission rod 11 to move downward. While the transmission rod 11 moves downward, the inner wall hypotenuse part of the transmission groove 21 will be extruded on its surface, causing the transmission block 12 and the moving block 7 to move along the trajectories of the limiting block 22 and the limiting groove 23. The moving block 7 will drive the self-locking rod 8 to retract into the mating groove 4. At this time, the sub-buckle 2 is snap-connected into the groove 3. When the pressing block 14 is released, the elastic force generated by the spring 6 will push the moving block 7 and the self-locking rod 8 to reset, so that the self-locking rod 8 enters the self-locking hole 9 to complete the self-locking of the plastic buckle and improve the connection stability at the same time;

[0038] It solves the problem that considering that when some large-sized and high-specific-gravity packaging boxes are in use, it is very difficult to ensure the connection stability between the box cover and the box body only by means of snap connection. When the packaging box drops and the box body has a certain deformation, the plastic buckle will come off, thereby reducing the practicality of the plastic buckle.

[0039] Preferably, a transmission groove 21 for cooperating with the transmission rod 11 is provided at the top of the transmission block 12, and the inner wall of the transmission groove 21 is in a slope shape.

[0040] In this example, by setting the transmission groove 21, when the transmission rod 11 moves downward and contacts the hypotenuse of the inner wall of the transmission groove 21, it will drive the transmission block 12, the moving block 7 and the self-locking rod 8 to move, playing a role in transmission.

[0041] Preferably, a limiting block 22 is fixedly connected to the bottom of the moving block 7, and a limiting groove 23 for cooperating with the limiting block 22 is provided on the inner wall of the mating groove 4.

[0042] In this example, by setting the limiting block 22 and the limiting groove 23, when the transmission rod 11 extrudes the inner wall of the transmission groove 21 to drive structures such as the moving block 7, it can limit the structures such as the moving block 7 to move only along the trajectories of the limiting block 22 and the limiting groove 23.

[0043] Preferably, the pressing block 14 is arc-shaped.

[0044] In this example, by setting the pressing block 14 to be arc-shaped, the shape of the pressing block 14 can fit the shape of the finger, so as to facilitate the user to push the pressing block 14 to move.

[0045] Embodiment 2:

[0046] Based on the first embodiment, in this embodiment, the self-locking mechanism can enable the plastic buckle to be self-locked and improve the stability of the connection. However, considering that the self-locking mechanism is driven by pushing the pressing block 14, and considering that if the pressing block 14 is accidentally touched, the plastic buckle will also be opened, thus affecting the practicability of the plastic buckle. In this application, the anti-misoperation mechanism includes a protective plate 15. Two sliding blocks 16 are fixedly connected to the inner wall of the pressing groove 5. Protective shells 17 for cooperating with the sliding blocks 16 are provided on both sides of the protective plate 15. A elastic sheet 18 is fixedly connected to one side of the protective plate 15. An embedding groove 19 for cooperating with the elastic sheet 18 is provided on the inner wall of the pressing groove 5.

[0047] In this embodiment, considering that the self-locking mechanism is driven by pushing the pressing block 14, and considering that if the pressing block 14 is accidentally touched, the plastic buckle will also be opened, thus affecting the practicability of the plastic buckle. Therefore, by setting the anti-misoperation mechanism, after the sub-buckle 2 and the mother-buckle 1 are locked by the self-locking mechanism, the protective plate 15 can be pushed to move the protective plate 15 along the sliding blocks 16 and the sliding groove until the elastic sheet 18 enters the inside of the embedding groove, completing the restriction of the protective plate 15. The protective plate 15 will cover the pressing groove 5 to prevent accidental contact with the pressing block 14, playing a role in preventing misoperation.

[0048] It solves the problem that considering the self-locking mechanism is driven by pushing the pressing block 14, and considering that if the pressing block 14 is accidentally touched, the plastic buckle will also be opened, thus affecting the practicability of the plastic buckle.

[0049] Preferably, the elastic sheet 18 is made of brass and has an arc shape.

[0050] In this embodiment, by setting the elastic sheet 18, the shape of the elastic sheet 18 can be designed as an arc. When the arc part of the elastic sheet 18 driven by the protective plate 15 contacts the inner wall of the embedding groove, the elastic sheet 18 will deform, and then it will abut against the inner wall of the embedding groove after entering the inside of the embedding groove to limit the protective plate 15. At the same time, to remove the protective plate 15, only a certain force needs to be applied to make the elastic sheet 18 leave the inside of the embedding groove.

[0051] Preferably, anti-slip lines 20 are provided on the top of the protective plate 15, and the number of the anti-slip lines 20 is several.

[0052] In this embodiment, by setting the anti-slip lines 20, it is convenient for the user to push the protective plate 15 to move, playing a role in increasing the friction force.

[0053] Working principle: The user drives the pressing rod 13 and the driving block 10 to move downward by pushing the pressing block 14 downward. The driving block 10 drives the transmission rod 11 to move downward. While the transmission rod 11 moves downward, the inner wall hypotenuse part of the transmission groove 21 is squeezed by its surface, causing the transmission block 12 and the moving block 7 to move along the trajectories of the limiting block 22 and the limiting groove 23. The moving block 7 drives the self-locking rod 8 to retract into the mating groove 4. At this time, the sub-button 2 is snapped into the groove 3. After releasing the pressing block 14, the elastic force generated by the spring 6 pushes the moving block 7 and the self-locking rod 8 to reset, so that the self-locking rod 8 enters the self-locking hole 9, completing the self-locking of the plastic buckle and improving the connection stability at the same time;

[0054] After the sub-button 2 and the mother button 1 are locked by the self-locking mechanism, the protection plate 15 is pushed to move the protection plate 15 along the sliding block 16 and the sliding groove until the elastic piece 18 enters the embedding groove, completing the limitation of the protection plate 15. The protection plate 15 covers the pressing groove 5, avoiding accidental contact with the pressing block 14 and playing a role in preventing accidental contact.

[0055] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic buckle that can be quickly self-locked, characterized in that: It includes a female buckle (1) and a male buckle (2). A groove (3) for cooperating with the male buckle (2) is formed on one side of the female buckle (1). A fitting groove (4) is formed inside the male buckle (2). A self-locking mechanism is arranged inside the fitting groove (4). A pressing groove (5) is formed on one side of the male buckle (2). An anti-misoperation mechanism is arranged inside the pressing groove (5). The self-locking mechanism includes a spring (6) arranged inside the fitting groove (4). Moving blocks (7) are fixedly connected to both ends of the spring (6). Two self-locking rods (8) are fixedly connected to one side of the moving block (7). One end of the self-locking rod (8) penetrates into the groove (3). Self-locking holes (9) for cooperating with the self-locking rod (8) are formed on the inner wall of the groove (3). A driving block (10) is arranged on the top of the spring (6). Two transmission rods (11) are fixedly connected to one side of the driving block (10). A transmission block (12) is sleeved on the surface of the transmission rod (11). One side of the transmission block (12) is fixedly connected to one side of the moving block (7). A pressing rod (13) is fixedly connected to the top of the driving block (10). One end of the pressing rod (13) penetrates into the pressing groove (5) and is fixedly connected to a pressing block (14).

2. The plastic buckle capable of quick self-locking according to claim 1, wherein: The anti-misoperation mechanism includes a protection plate (15). Two sliding blocks (16) are fixedly connected to the inner wall of the pressing groove (5). Protection shells (17) for cooperating with the sliding blocks (16) are formed on both sides of the protection plate (15). A shrapnel (18) is fixedly connected to one side of the protection plate (15). Embedding grooves (19) for cooperating with the shrapnel (18) are formed on the inner wall of the pressing groove (5).

3. The plastic buckle capable of quick self-locking according to claim 2, wherein: The shrapnel (18) is made of brass and is arc-shaped.

4. The plastic buckle capable of quick self-locking according to claim 2, wherein: Anti-slip lines (20) are formed on the top of the protection plate (15), and the number of the anti-slip lines (20) is several.

5. A plastic buckle capable of quick self-locking according to claim 1, characterized in that: A transmission groove (21) for cooperating with the transmission rod (11) is formed on the top of the transmission block (12), and the inner wall of the transmission groove (21) is in a slope shape.

6. The plastic buckle capable of quick self-locking according to claim 1, characterized in that: A limiting block (22) is fixedly connected to the bottom of the moving block (7), and a limiting groove (23) for cooperating with the limiting block (22) is formed on the inner wall of the fitting groove (4).

7. A plastic buckle capable of rapid self-locking according to claim 1, characterized in that: The pressing block (14) is arc-shaped.

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