Elastic buckle fastening device

Abstract

The utility model belongs to the technical field of elastic buckle fastening devices, and particularly relates to an elastic buckle fastening device which comprises a lower buckle. An auxiliary fastening device is mounted on the lower buckle; the outer side face of the upper buckle is sleeved with a fixing ring. The end face of the fixing block is fixedly connected with a fixing plate. Pulling holes are symmetrically formed in a plate body of the fixing plate; a limiting plate is arranged in a hole formed in the upper part of the pulling hole; a clamping plate is arranged in a hole formed in the lower portion of the pulling hole. The top of the clamping plate is fixedly connected to the bottom of the limiting plate. The end parts of the clamping plate and the limiting plate are fixedly connected with a connecting plate; the top of the connecting plate is fixedly connected with connecting cloth; when the connecting plate is tightly attached to the fixing plate, the first adhesive tape and the second adhesive tape are adhered to each other; and under the action of the auxiliary fastening device, the phenomenon that the elastic buckle slips off due to the fact that the tension between the connecting belts is too large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic buckle fastening devices, in particular to an elastic buckle fastening device. Background Art

[0002] An elastic buckle fastening device generally refers to a device that uses elastic elements to achieve fixation or connection. It is usually used in situations where frequent disassembly or adjustment is required to make it easier to complete the fixation or connection task. For example, at the connection of the backpack strap, an elastic buckle is usually used for matching operations;

[0003] A Chinese patent with the publication number CN217481716U discloses a self-locking elastic buckle, which includes a lock hook, a spring piece, a buckle foot and a buckle body with a symmetrical structure, wherein the buckle foot is fixedly provided at the two bottom corners of the buckle body, the inner side of the buckle body is provided with a spring piece and a lock hook fixed on the spring piece, and the buckle body is provided with an outer top surface of the buckle head, an outer side surface of the buckle head, an outer slope of the upper part of the buckle, a buckle shoulder, an outer slope of the lower part of the buckle, an outer side surface of the buckle leg, an inner top surface of the buckle head, an inner side surface of the buckle head, an inner side surface of the upper part of the buckle, an inner side surface of the lower part of the buckle, an inner side surface of the buckle leg and a buckle end surface, and the outer top surface of the buckle head is located at the top of the buckle body. The utility model buckle can be automatically guided during installation, and can assist the buckle position to be centered after installation, thereby improving the convenience of installation, and after installation, the buckle is firmly connected and has high reliability;

[0004] When the elastic buckle is in use, once the tension between the connecting belts is too large, the elastic buckle will slip off, affecting the normal use of the backpack. Therefore, an elastic buckle fastening device is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve some existing problems of elastic buckle fastening devices, the utility model provides an elastic buckle fastening device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an elastic buckle fastening device described in the utility model comprises a lower buckle; an insertion cavity is provided on the top structural surface of the lower buckle; through grooves are provided on both sides of the lower buckle; the through grooves intersect with the opening space of the insertion cavity; an auxiliary fastening device is installed on the lower buckle; the auxiliary fastening device comprises an upper buckle; a structural tooth is fixedly connected to the bottom of the upper buckle; the structural tooth passes through the insertion cavity and is fixed inside the through groove; a fixing ring is sleeved on the outer surface of the upper buckle; a fixing block is fixedly connected to one side surface of the fixing ring; a fixing plate is fixedly connected to the end surface of the fixing block; pulling holes are symmetrically provided on the plate body of the fixing plate; the pulling hole passes through the fixing plate;

[0007] A limiting plate is arranged in the upper hole of the pulling hole; a clamping plate is arranged in the lower hole of the pulling hole; the top of the clamping plate is fixedly connected to the bottom of the limiting plate; a connecting plate is fixedly connected to the ends of the clamping plate and the limiting plate; the phenomenon of rebound and slipping of the elastic buckle under a large pulling force is avoided.

[0008] Preferably, the operating range of the pulling hole is within the opening space of the through slot; the action end of the limiting plate is fixedly connected to the limiting block; the width of the limiting block is greater than the opening width of the pulling hole; so that the pulling hole can cooperate in the operation.

[0009] Preferably, when the clamping plate is inserted into the gap between the structural tooth and the lower buckle, the bottom working surface of the clamping plate contacts the tooth body of the structural tooth; the operating state of the clamping plate is in an oblique shape; and the clamping of the structural tooth is achieved.

[0010] Preferably, a connecting cloth is fixedly connected to the top of the connecting plate; a first adhesive patch is sewn on the side of the connecting cloth close to the fixing plate, so that the connecting cloth can operate smoothly.

[0011] Preferably, a second adhesive patch is adhered to the outer side surface of the fixing plate; when the connecting plate is tightly attached to the fixing plate, the first adhesive patch and the second adhesive patch adhere to each other, which facilitates the smooth operation of the connecting plate.

[0012] Preferably, buckle grooves are provided on both side surfaces of the upper buckle; a fixing buckle is provided inside the buckle groove; and the end of the fixing buckle is fixedly connected to the fixing ring, so that the fixing ring can operate stably.

[0013] The utility model is beneficial in that:

[0014] The utility model adopts the structural design of the auxiliary fastening device, arranges the fixing ring on the outside of the upper buckle, and buckles the fixing buckle into the inside of the buckle groove to ensure the stable operation of the fixing ring, and then uses the upper buckle to insert the structural tooth into the inside of the through groove, then applies a pushing force to the connecting plate, and the limit plate drives the card plate to move along the pulling hole on the fixing plate, and the card plate enters the gap between the structural tooth and the lower buckle, so that the bottom end of the card plate is closely attached to the structural tooth, avoiding the tendency of the structural tooth to rebound, and then uses the connecting cloth to stick the first adhesive patch to the second adhesive patch, which ensures the stable operation of the card plate and avoids the phenomenon that the elastic buckle slips due to excessive tension between the connecting belts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is an isometric structural diagram;

[0017] Figure 2 is a schematic diagram of the structure of the auxiliary fastening device;

[0018] Figure 3 is a schematic diagram of the structure of the fixed plate;

[0019] Figure 4 This is a schematic diagram of the structure of the card board.

[0020] In the figure: 1, lower buckle; 2, insertion cavity; 3, through slot; 401, upper buckle; 402, structural tooth; 403, fixing ring; 404, fixing block; 405, fixing plate; 406, pulling hole; 407, limiting plate; 408, clamping plate; 409, connecting plate; 410, limiting block; 411, connecting fabric; 412, first adhesive patch; 413, second adhesive patch; 414, buckle slot; 415, fixing buckle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 As shown, an elastic buckle fastening device comprises a lower buckle 1; an insertion cavity 2 is provided on the top structural surface of the lower buckle 1; through grooves 3 are provided on both sides of the lower buckle 1; the through grooves 3 intersect with the opening space of the insertion cavity 2; an auxiliary fastening device is installed on the lower buckle 1; the auxiliary fastening device comprises an upper buckle 401; a structural tooth 402 is fixedly connected to the bottom of the upper buckle 401; the structural tooth 402 passes through the insertion cavity 2 and is fixed inside the through groove 3; a fixing ring 403 is sleeved on the outer surface of the upper buckle 401; a fixing block 404 is fixedly connected to one side surface of the fixing ring 403; a fixing plate 405 is fixedly connected to the end surface of the fixing block 404; pulling holes 406 are symmetrically provided on the plate body of the fixing plate 405; the pulling hole 406 passes through the fixing plate 405;

[0023] A limit plate 407 is provided in the upper opening of the pulling hole 406; a clamping plate 408 is provided in the lower opening of the pulling hole 406; the top of the clamping plate 408 is fixedly connected to the bottom of the limit plate 407; a connecting plate 409 is fixedly connected to the ends of the clamping plate 408 and the limit plate 407; the operating range of the pulling hole 406 is located within the opening space of the through slot 3; the action end of the limit plate 407 is fixedly connected to the limit block 410; the width of the limit block 410 is greater than the opening width of the pulling hole 406; when the clamping plate 408 is inserted into the gap between the structural tooth 402 and the lower buckle 1, the bottom action surface of the clamping plate 408 contacts the tooth body of the structural tooth 402; the operating state of the clamping plate 408 is in a beveled state;

[0024] During operation, when the elastic buckle is in use, once the tension between the connecting belts is too large, the elastic buckle will slip off, affecting the normal use of the backpack. The present application cooperates with the auxiliary fastening device, and uses the upper buckle 401 to insert the structural tooth 402 into the interior of the through groove 3. Then, a pushing force is applied to the connecting plate 409, and the limiting plate 407 drives the card plate 408 to move along the pulling hole 406 on the fixed plate 405. The card plate 408 enters the gap between the structural tooth 402 and the lower buckle 1, so that the bottom end of the card plate 408 is close to the structural tooth 402, thereby avoiding the phenomenon of the elastic buckle slipping off due to excessive tension between the connecting belts.

[0025] A connecting fabric 411 is fixed to the top of the connecting plate 409; a first adhesive patch 412 is sewn on the side of the connecting fabric 411 close to the fixing plate 405; a second adhesive patch 413 is adhered to the outer surface of the fixing plate 405; when the connecting plate 409 is close to the fixing plate 405, the first adhesive patch 412 and the second adhesive patch 413 are adhered to each other; buckle grooves 414 are provided on both sides of the upper buckle 401; a fixing buckle 415 is clamped inside the buckle groove 414; the end of the fixing buckle 415 is fixed to the fixing ring 403;

[0026] During operation, before the elastic buckle is connected, the fixing ring 403 is put on the outside of the upper buckle 401, and the fixing buckle 415 is buckled into the inside of the buckle groove 414 to ensure the stable operation of the fixing ring 403. After the connecting plate 409 contacts the fixing plate 405, the connecting fabric 411 is used to stick the first adhesive patch 412 to the second adhesive patch 413 to ensure the stable operation of the card plate 408.

[0027] Working principle: The elastic buckle fastening device is usually used in occasions that need to be frequently disassembled or adjusted, so as to complete the fixing or connecting task more easily. When the existing elastic buckle is used, once the tension between the connecting belts is too large, the elastic buckle will slip off, affecting the normal use of the backpack. The present application cooperates with the auxiliary fastening device to set the fixing ring 403 on the outside of the upper buckle 401, and buckle the fixing buckle 415 into the inside of the buckle groove 414 to ensure the stable operation of the fixing ring 403. Then, the upper buckle 401 is used to insert the structural teeth 402 into the The clamping plate 408 is inserted into the through groove 3, and then a pushing force is applied to the connecting plate 409. The limiting plate 407 drives the clamping plate 408 to move along the pulling hole 406 on the fixing plate 405, and the clamping plate 408 enters the gap between the structural tooth 402 and the lower buckle 1, so that the bottom end of the clamping plate 408 is close to the structural tooth 402 to avoid the rebound tendency of the structural tooth 402. Then, the connecting fabric 411 is used to stick the first adhesive patch 412 to the second adhesive patch 413, which ensures the stable operation of the clamping plate 408 and avoids the phenomenon that the elastic buckle slips due to excessive tension between the connecting belts.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An elastic buckle fastening device, comprising a lower buckle (1); an insertion cavity (2) is provided on the top structural surface of the lower buckle (1); through grooves (3) are provided on both sides of the lower buckle (1); the through grooves (3) intersect with the space provided in the insertion cavity (2); an auxiliary fastening device is installed on the lower buckle (1); characterized in that: The auxiliary fastening device comprises an upper buckle (401); a structural tooth (402) is fixedly connected to the bottom of the upper buckle (401); the structural tooth (402) passes through the insertion cavity (2) and is fixed inside the through groove (3); a fixing ring (403) is sleeved on the outer surface of the upper buckle (401); a fixing block (404) is fixedly connected to one side surface of the fixing ring (403); a fixing plate (405) is fixedly connected to the end surface of the fixing block (404); a pulling hole (406) is symmetrically opened on the plate body of the fixing plate (405); the pulling hole (406) passes through the fixing plate (405); A limit plate (407) is arranged in the hole opened at the upper part of the pulling hole (406); a clamping plate (408) is arranged in the hole opened at the lower part of the pulling hole (406); the top of the clamping plate (408) is fixedly connected to the bottom of the limit plate (407); and a connecting plate (409) is fixedly connected to the ends of the clamping plate (408) and the limit plate (407).

2. An elastic buckle fastening device according to claim 1, characterized in that: The operating range of the pulling hole (406) is located within the opening space of the through slot (3); the action end of the limiting plate (407) is fixedly connected to the limiting block (410); the width of the limiting block (410) is greater than the opening width of the pulling hole (406).

3. An elastic buckle fastening device according to claim 2, characterized in that: When the clamping plate (408) is inserted into the gap between the structural tooth (402) and the lower buckle (1), the bottom working surface of the clamping plate (408) contacts the tooth body of the structural tooth (402); the operating state of the clamping plate (408) is in a beveled state.

4. An elastic buckle fastening device according to claim 3, characterized in that: A connecting fabric (411) is fixedly connected to the top of the connecting plate (409); and a first adhesive patch (412) is sewn on the side of the connecting fabric (411) close to the fixing plate (405).

5. An elastic buckle fastening device according to claim 4, characterized in that: A second adhesive patch (413) is adhered to the outer surface of the fixing plate (405); when the connecting plate (409) is in close contact with the fixing plate (405), the first adhesive patch (412) and the second adhesive patch (413) are adhered to each other.

6. The elastic buckle fastening device according to claim 4, characterized in that: Buckle grooves (414) are provided on both side surfaces of the upper buckle (401); a fixing buckle (415) is provided inside the buckle groove (414); and the end of the fixing buckle (415) is fixedly connected to the fixing ring (403).

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