Lock catch for circulating box

Abstract

The invention belongs to the technical field of lock catches, and relates to a lock catch for a circulation box, which comprises an outer lock catch, an inner lock catch, a tracer, a seal and an observation cover, the outer lock catch is fixed on an upper cover plate of the circulation box, the inner lock catch is fixed on a front side plate of the circulation box, the upper cover plate of the circulation box is folded inwards, and the tracer is fixed on the front side plate of the circulation box. The buckle plate of the outer lock catch is buckled to the outer buckle plate of the inner lock catch to enable the upper cover plate to be fixedly connected with the front side plate, the seal is pasted to the seal pasting area of the inner lock catch, the observation cover is buckled to complete the locking process of the circulation box, and whether the middle part of a disposable seal two-dimensional code arranged on the seal is complete or not is observed through a transparent observation hole formed in the observation cover. A tracer arranged on an outer lock catch is provided with a circulating box two-dimensional code and an electronic tag, digital logistics management is facilitated, and if the circulating box needs to be opened, a pinch plate is turned upwards, and a cutting blade below an observation cover divides a seal.

Description

Technical Field

[0001] The invention belongs to the technical field of lock buckles and relates to a lock buckle used for a circulation box. Background Art

[0002] At present, the problems encountered by the locks commonly used for circulation boxes on the market are: one is to use tape to tightly bind the circulation box, causing waste of resources and being environmentally unfriendly; the other is to use disposable lead seals, plastic buckles, etc., which do not have the function of preventing theft and are not safe enough. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the prior art and to provide a lock for a circulation box. The one-time-one-code technology is used each time the circulation box is sealed, that is, a disposable seal and a disposable seal QR code set on the seal, so as to solve the technical problems of the prior art in that resources are wasted during the transportation of the circulation box and it is not environmentally friendly or cannot prevent theft.

[0004] In order to achieve the above-mentioned object, the present invention is implemented by the following technical scheme: a lock buckle for a circulation box, characterized in that the lock buckle comprises an outer lock buckle arranged on the upper cover plate of the circulation box, an inner lock buckle arranged on the front side plate of the circulation box, a tracer arranged on the inner side of the outer lock buckle, an observation cover arranged on the outer side of the outer lock buckle, and a seal arranged under the observation cover; The outer lock comprises: an upper buckle plate located on the outer side of the upper cover of the circulation box, a lower buckle plate located on the inner side of the upper cover of the circulation box and a buckle plate located on the outer side of the front side plate of the circulation box, the buckle plate is connected to the upper buckle plate through a connecting line, an upper accommodating groove is arranged on the inner side of the upper buckle plate, the top surface of the upper accommodating groove is transparent, an outer hook is arranged on the surface of the upper buckle plate facing the upper cover, an outer slot which is plugged into the outer hook is arranged on the lower buckle plate, an outer through slot corresponding to the outer slot is arranged on the upper cover, the outer hook passes through the outer through slot and is plugged into the outer slot so that the upper The gusset plate and the lower gusset plate are superimposed as a whole and clamp the upper cover plate, the outer upper end of the gusset plate is provided with a lower accommodating groove, the left bottom of the lower accommodating groove is provided with a left overhang, the right bottom of the lower accommodating groove is provided with a right overhang, the lower end of the lower accommodating groove is provided with a lower overhang, a lower blank area is formed between the lower overhang and the gusset plate, a cutting blade is provided in the middle of the lower accommodating groove, a left blank area is formed between the cutting blade and the left overhang, and a right blank area is formed between the cutting blade and the right overhang, connecting grooves are provided on both sides of the top of the lower accommodating groove, and a locking hook is provided at the inner lower end of the gusset plate; The inner lock comprises: an outer buckle plate located on the outer side of the front side plate of the circulation box and an inner buckle plate located on the inner side of the front side plate of the circulation box, the outer side of the outer buckle plate is provided with a seal pasting area, a lock hook groove and a placeholder groove which are plugged with the lock hook, the seal pasting area is provided with two raised bottom plates, the raised bottom plates are plugged with the left blank area and the right blank area, a bottom plate gap is formed between the raised bottom plates, the bottom plate gap is plugged with the cutting blade, an inner hook is provided on the surface of the outer buckle plate facing the front side plate, an inner slot which is plugged with the inner hook is provided on the inner buckle plate, an inner through slot corresponding to the inner slot is provided on the front side plate, the inner hook passes through the inner through slot and is plugged with the inner slot so that the outer buckle plate and the inner buckle plate are superimposed as a whole and clamp the front side plate; The tracer includes: a QR code of a circulation box located on the upper layer, an electronic tag arranged on the lower layer, the tracer is plugged into the upper receiving groove, and the upper layer of the tracer is placed into the upper receiving groove on the inner side of the upward buckle plate; The seal comprises: a sealing adhesive tape, a disposable sealing QR code is arranged on the sealing adhesive tape, a dotted cutting line is arranged in the middle of the sealing QR code, the sealing adhesive tape is the same size as the sealing pasting area, and the sealing adhesive tape is pasted on the sealing pasting area; The observation cover comprises: a cover surface, an observation hole is arranged in the middle of the cover surface, the observation hole is round and transparent, and is smaller than the seal QR code, a left shoulder guard and a right shoulder guard are arranged in the vertical direction of the top of the cover surface, a connecting rod is arranged on the side of the left shoulder guard and the right shoulder guard, the connecting rod is plugged in with the connecting groove, a cover gap is formed between the left shoulder guard and the right shoulder guard, the cover gap is plugged in with the cutting blade, an introduction plate is arranged in the vertical direction on the inner side of the bottom end of the cover surface, a positioning plate is connected to the inner side of the bottom end of the introduction plate, and a space between the positioning plate and the introduction plate A V-shaped angle is formed, and the top opening width of the V-shaped angle is larger than the width of the lower blank area. The lock hook on the buckle plate is plugged into the lock hook groove on the outer buckle plate to fix the upper cover plate of the circulation box to the front side plate. The raised bottom plate is embedded in the left blank area and the right blank area, and the cutting blade is embedded in the gap between the bottom plate. The seal is pasted on the seal pasting area. The V-shaped angle is plugged into the lower blank area, the V-shaped angle is inserted into the lower blank area, the positioning plate is hooked at the bottom of the lower overhang, and the protruding part of the V-shaped angle is embedded in the placeholder groove. When the buckle plate is flipped upward, the lock hook is separated from the lock hook groove, and the cutting blade divides the seal along the dot-break cutting line.

[0005] Furthermore, after the tracer is plugged into the upper receiving groove, the complete QR code of the circulation box can be seen through the transparent top surface of the upper receiving groove.

[0006] Furthermore, after the V-shaped angle is plugged into the lower blank area, the middle part of the seal QR code can be seen through the transparent observation hole, but the entire seal QR code cannot be seen.

[0007] Furthermore, the gusset plate can be flipped along the connection line.

[0008] Furthermore, the locking process of the lock of the present invention is as follows: the buckle plate connected to the upper cover of the circulation box is buckled toward the outer buckle plate, the lock hook on the buckle plate is plugged into the lock hook groove on the outer buckle plate to fix the upper cover of the circulation box on the front side plate, the raised bottom plate is embedded in the left blank area and the right blank area, the cutting blade is embedded in the gap between the bottom plates, the seal is pasted on the seal pasting area, the observation cover is buckled on, the V-shaped angle is plugged into the lower blank area, the V-shaped angle is inserted into the lower blank area, the positioning plate is hooked at the bottom of the lower overhang, and the protruding part of the V-shaped angle is embedded in the placeholder groove, thus completing the final locking of the lock of the present invention on the circulation box.

[0009] Furthermore, the opening process of the lock of the present invention is as follows: when the circulation box needs to be opened, the buckle plate is flipped upward, the lock hook is separated from the lock hook groove, and the cutting blade divides the seal along the dotted cutting line, and the upper cover of the circulation box can be opened.

[0010] The advantages of the present invention are as follows: compared with the prior art, the lock of the present invention uses a one-code technology each time the circulation box is sealed, that is, a disposable seal and a disposable seal QR code set on the seal are used. The seal QR code is a unique code each time it is used, which ensures the safety during transportation to the greatest extent. The middle part of the seal QR code is observed to be intact through a transparent observation hole. If the middle part of the seal QR code is damaged, the circulation box may be stolen during transportation, so it can be traced to achieve the purpose of preventing theft and improving the safety of the circulation box. The built-in tracer is provided with a circulation box QR code and an electronic tag to facilitate digital logistics management. The present invention has the characteristics of simple structure, easy use, high safety, etc. In addition, the lock of the present invention can be recycled except for the seal, which has the characteristics of saving resources and being environmentally friendly.

[0011] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the lock;

[0013] Figure 2 Schematic diagram of the installation position of the observation cover E;

[0014] Figure 3 It is an exploded schematic diagram of the outer lock buckle A;

[0015] Figure 4 is a schematic diagram of the structure of the inner lock buckle B;

[0016] Figure 5 It is an exploded schematic diagram of the inner lock buckle B;

[0017] Figure 6is a schematic diagram of the structure of the tracer C;

[0018] Figure 7 is a schematic diagram of the structure of seal D;

[0019] Figure 8 It is a schematic diagram of the structure of the observation cover E;

[0020] Fig. 9 It is a schematic diagram of the position of the lock when the upper cover of the circulation box is fully opened;

[0021] Fig.10 is a schematic diagram of an embodiment;

[0022] Description of reference numerals:

[0023] 101, upper gusset plate, 102, lower gusset plate, 103, gusset plate, 104, connecting line, 105, upper receiving groove, 106, external hook, 107, external slot, 108, external slot, 109, lower receiving groove, 110, left overhang, 111, right overhang, 112, lower overhang, 113, lower blank area, 114, cutting blade, 115, left blank area, 116, right blank area, 117, connecting groove, 118, locking hook, 201, external gusset plate, 202, internal gusset plate, 203, sealing label pasting area, 204, locking hook groove, 205 , placeholder slot, 206, raised bottom plate, 207, bottom plate gap, 208, inner hook, 209, inner slot, 210, inner slot, 301, circulation box QR code, 302, electronic label, 401, sealing tape, 402, sealing QR code, 403, dot-break cutting line, 501, cover, 502, observation hole, 503, left shoulder guard, 504, right shoulder guard, 505, connecting rod, 506, cover gap, 507, guide plate, 508, card position plate, A, outer lock buckle, B, inner lock buckle, C, tracer, D, seal, E, observation cover DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention. Obviously, the described embodiment is only one embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that when an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time; when referred to as being "fixed", "set" or "installed" on another element, it may be directly on the other element or there may be a central element; the upper layer, lower layer, upper end, lower end, top end, bottom end, top, bottom, front side, inside, outside, left side, right side and other directional terms mentioned or may be mentioned in this specification are defined for their structures, and they are relative concepts. Therefore, they may change accordingly according to their different positions and different usage states. Therefore, these or other directional terms should not be interpreted as restrictive terms. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by technicians in the technical field of the invention; the terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] like Figure 1-Figure 10 As shown, the present invention provides a lock for a circulation box, including an outer lock A, an inner lock B, a tracer C, a seal D and an observation cover E. The upper buckle plate 101 provided on the outer lock A is fixedly connected to the upper cover of the circulation box, the buckle plate 103 connected to the upper cover of the circulation box buckles to the outer buckle plate 201, the lock hook 118 on the buckle plate 103 is plugged into the lock hook groove 204 on the outer buckle plate 201 so that the upper cover of the circulation box is fixedly connected to the front side plate, the raised bottom plate 206 is embedded in the left blank area 115 and the right blank area 116, the cutting blade 114 is embedded in the bottom plate gap 207, the seal D is pasted on the seal pasting area 203, the observation cover E is buckled, the V-shaped angle is plugged into the lower blank area 113, the V-shaped angle is inserted into the lower blank area 113, the positioning plate 508 is hooked at the bottom of the lower overhang 112, and the protruding part of the V-shaped angle is embedded in the place-taking groove 205, that is, the final locking of the lock of the present invention on the circulation box is completed. Through the transparent observation hole 502, observe whether the middle part of the seal QR code 402 is intact. If the middle part of the seal QR code 402 is damaged, the circulation box may have been stolen during transportation, and it can be traced, thereby solving the technical problem that the circulation box in the current market cannot be prevented from being stolen during transportation. In addition, the circulation box QR code 301 and the electronic tag 302 are set on the tracer C to facilitate digital logistics management. When the circulation box needs to be opened, the buckle plate 103 is flipped upward, the lock hook 118 is separated from the lock hook groove 204, and the cutting blade 114 divides the seal D along the dot-break cutting line 403, and the upper cover of the circulation box can be opened.

[0027] Furthermore, the outer lock buckle A includes: an upper buckle plate 101 located on the outer side of the upper cover of the circulation box, a lower buckle plate 102 located on the inner side of the upper cover of the circulation box, and a buckle plate 103 located on the outer side of the front side plate of the circulation box, wherein the buckle plate 103 is connected to the upper buckle plate 101 through a connecting line 104, and an upper accommodating groove 105 is provided on the inner side of the upper buckle plate 101, and the top surface of the upper accommodating groove 105 is transparent, and the thickness of the upper buckle The upper gusset plate 101 is half the thickness of the upper cover plate 101, and an outer hook 106 is arranged on the surface of the upper gusset plate 101 facing the upper cover plate, and an outer slot 107 which is plugged and matched with the outer hook 106 is arranged on the lower gusset plate 102, and an outer through slot 108 corresponding to the outer slot 107 is arranged on the upper cover plate, and the outer hook 106 passes through the outer through slot 108 and plugs into the outer slot 107 so that the upper gusset plate 101 and the lower gusset plate 102 are superimposed as a whole and clamp the upper gusset plate 101. The cover plate, the outer upper end of the buckle plate 103 is provided with a lower accommodating groove 109, the lower accommodating groove 109 penetrates the buckle plate 103, the left bottom of the lower accommodating groove 109 is provided with a left overhang 110, the right bottom of the lower accommodating groove 109 is provided with a right overhang 111, and the lower end of the lower accommodating groove 109 is provided with a lower overhang 112, and the thickness of the left overhang 110, the right overhang 111, and the lower overhang 112 is half the thickness of the buckle plate 103. 1. A lower blank area 113 is formed between the lower overhang 112 and the buckle plate 103, a cutting blade 114 is arranged in the middle of the lower accommodating groove 109, a left blank area 115 is formed between the cutting blade 114 and the left overhang 110, a right blank area 116 is formed between the cutting blade 114 and the right overhang 111, connecting grooves 117 are arranged on both sides of the top of the lower accommodating groove 109, and a locking hook 118 is arranged at the inner lower end of the buckle plate 103.

[0028] Furthermore, the inner lock buckle B comprises: an outer buckle plate 201 located on the outer side of the front side plate of the circulation box and an inner buckle plate 202 located on the inner side of the front side plate of the circulation box, the outer side of the outer buckle plate 201 is provided with a seal pasting area 203, a lock hook groove 204 plugged with the lock hook 118, and a placeholder groove 205, the seal pasting area 203 is provided with two raised bottom plates 206, the thickness of the raised bottom plate 206 is half of the thickness of the buckle plate 103, the raised bottom plate 206 is the same size as the left blank area 115 and the right blank area 116, and the raised bottom plate 206 is the same size as the left blank area 115. , the right blank area 116 is plugged in, a bottom plate gap 207 is formed between the raised bottom plates 206, the bottom plate gap 207 is plugged in with the cutting blade 114, an inner hook 208 is provided on the surface of the outer buckle plate 201 facing the front side plate, an inner slot 209 plugged in with the inner hook 208 is provided on the inner buckle plate 202, an inner through slot 210 corresponding to the inner slot 209 is provided on the front side plate, the inner hook 208 passes through the inner through slot 210 and is plugged in with the inner slot 209 so that the outer buckle plate 201 and the inner buckle plate 202 are overlapped as a whole and clamp the front side plate.

[0029] Furthermore, the tracer C includes: a circulation box QR code 301 located on the upper layer, and an electronic tag 302 arranged on the lower layer. The tracer C has the same shape and thickness as the upper accommodating groove 105. The tracer C is plugged into the upper accommodating groove 105, and the upper layer of the tracer C is placed into the upper accommodating groove 105 on the inner side of the upward buckle plate 101.

[0030] Furthermore, the seal D includes: a sealing tape 401, on which a disposable sealing QR code 402 is arranged, and a dotted cutting line 403 is arranged in the middle of the sealing QR code 402. The sealing tape 401 is the same size as the seal pasting area 203, and the sealing tape 401 is pasted on the seal pasting area 203.

[0031] Furthermore, the observation cover E includes: a cover surface 501, the cover surface 501 is the same size as the lower accommodating groove 109, an observation hole 502 is arranged in the middle of the cover surface 501, the observation hole 502 is circular and transparent, and the observation hole 502 is smaller than the seal QR code 402, and a left shoulder guard 503 and a right shoulder guard 504 are respectively arranged in the vertical direction of the top of the cover surface 501, and a connecting rod 505 is arranged on the side of the left shoulder guard 503 and the right shoulder guard 504, and the connecting rod 505 is plugged with the connecting groove 117, and a cover gap 506 is formed between the left shoulder guard 503 and the right shoulder guard 504, and the cover gap 506 is plugged with the cutting blade 114, and an introduction plate 507 is arranged on the inner side of the bottom end of the cover surface 501 in the vertical direction, and a positioning plate 508 is connected to the inner side of the bottom end of the introduction plate 507, and a V-shaped clamp is formed between the positioning plate 508 and the introduction plate 507 The top opening width of the V-shaped angle is greater than the width of the lower blank area 113. The lock hook 118 on the buckle plate 103 is plugged into the lock hook groove 204 on the outer buckle plate 201 to fix the upper cover plate of the circulation box to the front side plate. The raised bottom plate 206 is embedded in the left blank area 115 and the right blank area 116. The cutting blade 114 is embedded in the bottom plate gap 207. The seal D is pasted on the seal pasting area 203. The V-shaped angle and the lower blank area 11 The V-shaped angle is inserted into the lower blank area 113, and is squeezed by the lower blank area 113, so that the angle of the V-shaped angle becomes smaller. After passing through the lower blank area 113, the V-shaped angle returns to its original state, and the positioning plate 508 is hooked at the bottom of the lower overhang 112, and the protruding part of the V-shaped angle is embedded in the occupying groove 205. When the buckle plate 103 is turned upward, the locking hook 118 is separated from the locking hook groove 204, and the cutting blade 114 divides the seal D along the dot-break cutting line 403.

[0032] Furthermore, after the tracer C is plugged into the upper receiving groove 105 , the complete circulation box QR code 301 can be seen through the transparent top surface of the upper receiving groove 105 .

[0033] Furthermore, after the V-shaped angle is plugged into the lower blank area 113 , the middle portion of the seal two-dimensional code 402 can be seen through the transparent observation hole 502 , but the entire seal two-dimensional code 402 cannot be seen.

[0034] Furthermore, the pinch plate 103 can be turned over along the connection line 104 .

[0035] Furthermore, the locking process of the lock of the present invention is as follows: the buckle plate 103 connected to the upper cover of the circulation box is buckled toward the outer buckle plate 201, the locking hook 118 on the buckle plate 103 is plugged into the locking hook groove 204 on the outer buckle plate 201 to fix the upper cover of the circulation box with the front side plate, the raised bottom plate 206 is embedded in the left blank area 115 and the right blank area 116, the cutting blade 114 is embedded in the bottom plate gap 207, the seal D is pasted on the seal pasting area 203, the observation cover E is buckled, the V-shaped angle is plugged into the lower blank area 113, the V-shaped angle is inserted into the lower blank area 113, the positioning plate 508 is hooked on the bottom of the lower overhang 112, and the protruding part of the V-shaped angle is embedded in the placeholder groove 205, thus completing the final locking of the lock of the present invention on the circulation box.

[0036] Furthermore, the opening process of the lock of the present invention is as follows: when the circulation box needs to be opened, the buckle plate 103 is flipped upward, the lock hook 118 is separated from the lock hook groove 204, and the cutting blade 114 divides the seal D along the dotted cutting line 403, and the upper cover of the circulation box can be opened.

[0037] The advantages of the present invention are as follows: compared with the prior art, the lock buckle of the present invention uses a one-time-one-code technology each time the circulation box is packaged, that is, a disposable seal and a disposable seal QR code set on the seal are used. The seal QR code is a unique code each time it is used, which ensures the safety during transportation to the greatest extent. The middle part of the seal QR code 402 is observed to be intact through the transparent observation hole 502. If the middle part of the seal QR code 402 is damaged, the circulation box may be stolen during transportation, so it can be traced to achieve the purpose of preventing theft and improve the safety of the circulation box. The tracer C of the lock buckle of the present invention is provided with a circulation box QR code 301 and an electronic tag 302, which is convenient for digital logistics management. The present invention has the characteristics of simple structure, easy use, high safety, etc. In addition, the lock of the present invention can be recycled except the seal D, which has the characteristics of saving resources and being environmentally friendly.

[0038] The above-mentioned embodiments only express the implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, any deformation and improvement of the shape, size, material, connection method, installation position, etc. made to the present invention without departing from the concept of the present invention, all belong to the protection scope of the present invention. The embodiments of the present invention can be used not only for circulation boxes, but also for other devices, and should not be understood as limiting the scope of use of the present invention.

Claims

1. A lock for a circulation box, characterized in that: The lock comprises an outer lock (A) arranged on the upper cover of the circulation box, an inner lock (B) arranged on the front side plate of the circulation box, a tracer (C) arranged on the inner side of the outer lock (A), an observation cover (E) arranged on the outer side of the outer lock (A), and a seal (D) arranged under the observation cover (E); The outer lock buckle (A) comprises: an upper buckle plate (101) located on the outer side of the upper cover plate of the circulation box, a lower buckle plate (102) located on the inner side of the upper cover plate of the circulation box, and a buckle plate (103) located on the outer side of the front side plate of the circulation box, wherein the buckle plate (103) is connected to the upper buckle plate (101) via a connecting line (104), and an upper receiving groove (105) is provided on the inner side of the upper buckle plate (101), and the top surface of the upper receiving groove (105) is transparent. The upper buckle plate (101) is provided with an external hook (106) on the surface facing the upper cover plate, the lower buckle plate (102) is provided with an external slot (107) plugged with the external hook (106), the upper cover plate is provided with an external slot (108) corresponding to the external slot (107), the external hook (106) passes through the external slot (108) and plugs into the external slot (107) so that the upper buckle plate (101) and the lower buckle plate (102) are connected. 02) are overlapped as a whole and clamp the upper cover plate, the outer upper end of the buckle plate (103) is provided with a lower receiving groove (109), the left bottom of the lower receiving groove (109) is provided with a left overhang (110), the right bottom of the lower receiving groove (109) is provided with a right overhang (111), the lower end of the lower receiving groove (109) is provided with a lower overhang (112), and a lower blank area (112) is formed between the lower overhang (112) and the buckle plate (103) 113), a cutting blade (114) is arranged in the middle of the lower receiving groove (109), a left blank area (115) is formed between the cutting blade (114) and the left overhang (110), a right blank area (116) is formed between the cutting blade (114) and the right overhang (111), connecting grooves (117) are arranged on both sides of the top of the lower receiving groove (109), and a locking hook (118) is arranged at the inner lower end of the buckle plate (103); The inner lock (B) comprises: an outer buckle plate (201) located on the outer side of the front side plate of the circulation box and an inner buckle plate (202) located on the inner side of the front side plate of the circulation box, the outer side of the outer buckle plate (201) is provided with a seal pasting area (203), a lock hook groove (204) plug-in-matched with the lock hook (118), and a placeholder groove (205), the seal pasting area (203) is provided with two raised bottom plates (206), the raised bottom plates (206) are plug-in-matched with the left blank area (115) and the right blank area (116), and a bottom plate gap is formed between the raised bottom plates (206) (207), the bottom plate gap (207) is plugged into and matched with the cutting blade (114), an inner hook (208) is provided on the surface of the outer buckle plate (201) facing the front side plate, an inner slot (209) plugged into and matched with the inner hook (208) is provided on the inner buckle plate (202), an inner through slot (210) corresponding to the inner slot (209) is provided on the front side plate, the inner hook (208) passes through the inner through slot (210) and plugs into the inner slot (209) so that the outer buckle plate (201) and the inner buckle plate (202) are superimposed as a whole and clamp the front side plate; The tracer (C) comprises: a two-dimensional code (301) of a circulation box located at the upper layer, and an electronic tag (302) arranged at the lower layer. The tracer (C) is plugged into and matched with the upper receiving groove (105). The upper layer of the tracer (C) is placed into the upper receiving groove (105) on the inner side of the upward buckle plate (101); The seal (D) comprises: a sealing adhesive tape (401), a disposable sealing two-dimensional code (402) is arranged on the sealing adhesive tape (401), a dotted cutting line (403) is arranged in the middle of the sealing two-dimensional code (402), the sealing adhesive tape (401) is the same size as the sealing pasting area (203), and the sealing adhesive tape (401) is pasted on the sealing pasting area (203); The observation cover (E) comprises: a cover surface (501), an observation hole (502) is arranged in the middle of the cover surface (501), the observation hole (502) is round and transparent, and the observation hole (502) is smaller than the seal QR code (402), and a left shoulder guard (503) and a right shoulder guard (504) are arranged in the vertical direction of the top of the cover surface (501), and a connecting rod (505) is arranged on the side of the left shoulder guard (503) and the right shoulder guard (504). The connecting rod (505) is plugged into the connecting groove (117), a cover gap (506) is formed between the left shoulder guard (503) and the right shoulder guard (504), the cover gap (506) is plugged into the cutting blade (114), an introduction plate (507) is arranged on the inner side of the bottom end of the cover surface (501) in a vertical direction, and a positioning plate (508) is connected to the inner side of the bottom end of the introduction plate (507), and the positioning plate (508) is connected to the introduction plate (508). A V-shaped angle is formed between the plates (507), the top opening width of the V-shaped angle is greater than the width of the lower blank area (113), the lock hook (118) on the buckle plate (103) is plugged into the lock hook groove (204) on the outer buckle plate (201) to fix the upper cover plate of the circulation box to the front side plate, the raised bottom plate (206) is embedded in the left blank area (115) and the right blank area (116), the cutting blade (114) is embedded in the bottom plate gap (207), and the seal (D) is glued to the bottom plate. The V-shaped angle is attached to the seal pasting area (203), and is plugged into the lower blank area (113). The V-shaped angle is inserted into the lower blank area (113). The positioning plate (508) is hooked at the bottom of the lower overhang (112), and the protruding part of the V-shaped angle is embedded in the occupying groove (205). When the buckle plate (103) is flipped upward, the locking hook (118) is separated from the locking hook groove (204), and the cutting blade (114) divides the seal (D) along the dot cutting line (403).

2. The lock buckle according to claim 1, characterized in that After the tracer (C) is plugged into the upper receiving groove (105), the complete circulation box QR code (301) can be seen through the transparent top surface of the upper receiving groove (105).

3. The lock buckle according to claim 1, characterized in that After the V-shaped angle is plugged into the lower blank area (113), the middle part of the seal two-dimensional code (402) can be seen through the transparent observation hole (502), but the entire seal two-dimensional code (402) cannot be seen.

4. The lock buckle according to claim 1, characterized in that , the buckle plate (103) can be flipped along the connecting line (104).

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