Belt buckle and belt

Abstract

The utility model relates to the field of intelligent canopy, especially a belt buckle and belt, the belt buckle includes the bottom plate, and the both sides of bottom plate are equipped with the strip-shaped convex tooth that can bend inwards, and one end is equipped with the lug with connecting hole. The belt surface is equipped with the recessed structure that distributes in the interval. When installing, the convex tooth is embedded into the belt recessed structure to form mechanical locking through pressure and makes the lug of two belt buckles connect through the connecting piece. The core innovation of the utility model lies in that the traditional bolt perforation connection is replaced by mechanical interlocking connection, which not only eliminates the bloated problem caused by the overlapping of the belt end, but also makes the transmission more stable. Secondly, the detachable connection of the belt and the fastener is realized, and the belt body is not damaged after disassembly, and the new belt buckle can be repeatedly installed for continuous use, solving the problem of belt scrapping caused by the hole left in the traditional way, with the outstanding advantages of reliable connection and cost saving.

Description

Technical Field

[0001] This utility model relates to the field of intelligent awnings, specifically to a belt buckle and belt. Background Technology

[0002] Intelligent awnings, also known as automatic retractable awnings or electric awnings, are modern outdoor sunshade facilities that integrate mechanical structures, motor drives, and intelligent control systems. They completely change the user experience of traditional fixed or manual awnings, with their core value lying in automation, maximized space utilization, and intelligent integration.

[0003] The intelligent awning mainly consists of an awning fabric, telescopic support frame, drive motor, transmission system, and intelligent control system. The transmission system, its core component, is responsible for converting the motor's power into the telescopic movement of the awning body; its performance directly determines the awning's operational stability, noise level, and reliability.

[0004] In existing technologies, belts are commonly used as transmission components. During construction, the two ends of the belt are usually overlapped and directly connected using bolts. This connection method not only increases the thickness of the connection and makes the structure bulky, affecting the smoothness of transmission, but more importantly, the bolt holes will damage the structural integrity of the belt ends. During use, stress concentration is likely to occur in this area, leading to belt tearing, deformation, or premature damage.

[0005] Furthermore, with the continuous rise in the cost of raw materials such as rubber, the procurement cost of belts is also increasing. The aforementioned traditional connection method has significant drawbacks in maintenance: if the belt needs to be replaced or adjusted, the perforated end must be cut off, and new holes must be drilled in the new location for reconnection. This process results in a continuous loss of the belt's effective length and waste of materials, increasing operating costs. Utility Model Content

[0006] In order to solve the problems of the existing technology of using bolts to connect the two ends of the belt by overlapping and drilling, resulting in the end of the belt being bulky and prone to stress concentration and damage and deformation, and on this basis, to further solve the defects of the old belt after disassembly due to the left bolt holes, which leads to the reduction of structural strength and the inability to be reused, this application provides a belt buckle and a belt.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows: A belt buckle includes a base plate, on both sides of which are provided with pairs of spaced strip-shaped protrusions, the strip-shaped protrusions extending in a direction perpendicular to the base plate, and one end of the base plate extending in the length direction to form a lug parallel to the base plate, the lug having a connecting hole.

[0008] Furthermore, the extension length of the strip-shaped protrusions is greater than half the width of the base plate, and each strip-shaped protrusion has concave and convex teeth at its top end, with the concave and convex teeth on the top ends of two opposite strip-shaped protrusions being staggered.

[0009] Furthermore, the base plate and the lug are fixedly connected by a connecting section, so that a space is formed between the base plate and the lug to accommodate the lug extending from another belt buckle base plate. The included angle between the connecting section and the base plate is 20°-90°.

[0010] Furthermore, a snap-fit ​​component is provided on the mating surface of the buckle lug for engagement. The snap-fit ​​component includes a first snap-fit ​​member and a second snap-fit ​​member that are matched and snap-fitted together. Either the first snap-fit ​​member or the second snap-fit ​​member is selectively provided on the mating surface of any lug.

[0011] A belt includes a belt body, with belt buckles at both ends of the belt body. The strip-shaped protrusions of the belt buckles are bent inward and fixedly covered by the belt body. The belt buckles at both ends of the belt body are fixedly connected by overlapping lugs and by connecting members passing through the connecting holes of the overlapping lugs.

[0012] Furthermore, the surface of the belt body is also provided with recessed structures at intervals for accommodating the strip-shaped protrusions. The end of the belt body is accommodated between the bottom plate of the belt buckle and the strip-shaped protrusions. When the strip-shaped protrusions are bent, they are inserted into the recessed structures.

[0013] Furthermore, the cross-section of the recessed structure is trapezoidal.

[0014] Furthermore, the cross-section of the recessed structure is a parallelogram.

[0015] Furthermore, there are at least two belts, with the buckle lug at one end of one belt overlapping with the buckle lug at one end of the other belt, and they are fixedly connected by the connector.

[0016] Furthermore, the two belts are fixedly connected with their recessed structures facing opposite directions.

[0017] Beneficial effects: By replacing the traditional bolt-through connection with a mechanical connection between the belt and the belt using a belt buckle, the problems of local bulkiness and stress concentration caused by end overlap and perforation are effectively avoided, thereby improving the smoothness of belt drives and extending their service life. This structural design ensures that no permanent damage such as holes is left on the belt body during disassembly and maintenance, allowing for direct reuse without cutting, reducing material consumption and maintenance costs. Furthermore, the configuration of different recessed structural shapes provides flexible options to adapt to different operating conditions such as bidirectional transmission or unidirectional locking, and the simple structure and convenient operation make it suitable for industrial-scale promotion. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the belt buckle; Figure 2 This is a schematic diagram showing the assembly state of the belt buckle and belt; Figure 3 This is a schematic diagram of the belt buckle connection section; Figure 4 This is a schematic diagram of the assembly of the belt connecting section and the lug; Figure 5 This is a schematic diagram of the fourth embodiment of the belt buckle; Figure 6 This is a schematic diagram of the fourth embodiment of the belt buckle; Figure 7 A schematic diagram of the trapezoidal recessed section of the belt concave structure; Figure 8 A schematic diagram of the parallelogram-shaped recessed section of the belt recessed structure; Figure 9 A schematic diagram showing the interconnection of belt buckles after assembly; Figure 10 A magnified schematic diagram of the interlocking teeth of the strip-shaped teeth after the belt buckle is assembled; Figure 11 A schematic diagram showing two belts with concave structures facing different directions connected; In the diagram: 1-trapezoidal recessed belt, 11-trapezoidal platform, 12-trapezoidal, 2-parallelogram recessed belt, 21-wing-shaped platform, 22-parallelogram, 3-base plate, 31-lug, 311-connecting hole, 32-strip-shaped protrusion, 321-concave-convex tooth, 33-first snap-fit ​​component, 34-second snap-fit ​​component, 35-connecting section, 4-connector. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] Example 1: like Figure 1 and Figure 2 As shown in the figure, the specific structure of a belt buckle and belt of the present invention is disclosed. The belt buckle includes a base plate 3. Both sides of the base plate 3 are provided with pairs of spaced strip-shaped protrusions 32. The strip-shaped protrusions 32 extend in a direction perpendicular to the base plate 3. One end of the base plate 3 extends in the length direction to form a lug 31 parallel to the base plate 3. A connecting hole 311 is provided on the lug 31.

[0027] like Figure 2 As shown in the figure, the specific structure of a belt buckle and belt of the present invention is disclosed. The belt includes a belt body, and belt buckles are respectively provided at both ends of the belt body. The strip-shaped protrusions 32 of the belt buckle are bent inward and fixedly covered to the belt body. The belt buckles at both ends of the belt body are fixedly connected by overlapping lugs 31 and by a connector 4 passing through the connecting hole 311 of the overlapping lugs 31. The connector 4 can be implemented by known products such as bolts.

[0028] Working principle and technical effects: The working principle of this utility model is based on a unique mechanical interlocking connection design in the field of intelligent awnings, which aims to solve the defects of the awning belt connection method.

[0029] Firstly, addressing the primary issue of bolts directly connecting belts, leading to bulky and easily damaged belt ends, the working principle and technical effect are as follows: During installation, the belt buckle is placed at the belt end, allowing the rigid strip-shaped protrusions 32 on both sides of the base plate to straddle the belt. Pressure is applied using tools such as a hammer, causing these protrusions to bend inwards, tightly wrapping around the belt body surface. This process creates a strong mechanical interlock, firmly combining the belt buckle and belt into a single unit. Subsequently, the lugs 31 of the two belt buckles, respectively fixed at both ends of the belt, are overlapped and connected using a connector 4 that passes through the connecting holes 311 of both.

[0030] In this technical solution, the power transmission path has been significantly changed: the tension generated by the drive motor is evenly distributed to the entire belt surface by the belt buckle through the strip-shaped protrusions, avoiding belt tearing, deformation and premature damage caused by stress concentration around the bolt holes in the traditional method. Since there is no need for overlapping holes at both ends of the belt, the problem of bulkiness at the connection is solved, making the belt run more smoothly.

[0031] Secondly, regarding the second issue of "old belts not being reusable," the working principle lies in the reversible installation process. When the belt needs to be replaced or repaired, simply loosen connector 4 to separate the two belt buckles. At this point, although the belt buckle securing the belt has formed a permanent lock with the belt and cannot be disassembled without damage, the belt itself is not damaged. Therefore, simply use a tool to pry up the strip-shaped protrusions 32, and then install a new set of belt buckles onto both ends of the old, intact belt, allowing the belt to regain full functionality and be reused. This solves the problem of traditional bolted connections leaving permanent holes after disassembly, thus rendering the belt unusable and achieving resource conservation.

[0032] Example 2: like Figure 1As shown, in order to achieve better technical results, the second embodiment of the belt buckle and belt of this utility model proposes further improvements based on the first embodiment. The difference from the first embodiment is that the top of the belt buckle strip-shaped protrusion 32 is provided with concave and convex teeth 321, and the belt body has a concave structure.

[0033] Specifically, the strip-shaped protrusions 32 extending vertically from the side of the base plate 3 are designed to have an extension length greater than half the width of the base plate 3. This dimensional relationship is to ensure that when the opposing strip-shaped protrusions 32 are bent inward, their top ends have sufficient length to meet in the central area of ​​the base plate.

[0034] like Figure 10 As shown, each of the strip-shaped protrusions 32 has a concave-convex tooth 321 at its top. The positions of the concave-convex teeth 321 at the top of the strip-shaped protrusions 32 on both sides of the bottom plate are staggered, that is, the concave part on one side of the strip-shaped protrusion is directly opposite the solid part of the opposite side of the strip-shaped protrusion 32.

[0035] When construction workers apply pressure to both rows of strip-shaped teeth 32 simultaneously using specialized tools such as crimping pliers or a hammer, the teeth bend around their roots. Due to the staggered design of the concave and convex teeth 321, the convex portion of one side of the strip-shaped teeth 32 engages with the concave portion of the opposite side during bending, rather than undergoing a hard collision. This process causes the two rows of staggered strip-shaped teeth to interlock in the central area of ​​the belt body, forming a robust mesh-like interlocking structure.

[0036] This interlocking design enhances the mechanical locking force, allowing the belt buckle to withstand greater pulling force and further preventing it from loosening.

[0037] The belt body surface has spaced recessed structures. In this embodiment, the recessed structures are trapezoidal 12 or parallelogram 22. Compared with the smooth belt plane, the cooperation between this recessed structure and the strip-shaped protrusions 32 achieves a better locking effect.

[0038] Specifically, these recessed structures are arranged at intervals along the length of the belt. During installation, the belt end is placed on the base plate 3 of the belt buckle, with the strip-shaped protrusions 32 positioned on both sides of the belt. At this time, the belt end is perfectly accommodated within the U-shaped space formed by the base plate 3 and the raised strip-shaped protrusions 32.

[0039] When pressure is applied using a tool to bend the strip-shaped protrusion 32 inward, the end of the strip-shaped protrusion 32 will precisely engage in the corresponding recessed structure. The recessed structure and the bent strip-shaped protrusion 32 form a contact surface and a three-dimensional mechanical constraint. This surface contact and form fit together produce pull-out resistance and shear resistance superior to a smooth surface.

[0040] The recessed structure on the surface of the belt body adopts a trapezoidal 12 or a parallelogram structure 22, which can achieve different technical effects and is also to adapt to different working conditions and precise market demands.

[0041] like Figure 7 As shown in the figure, the specific structure of trapezoid 12 is revealed. When the recessed structure adopts a trapezoidal recessed belt 1 with a trapezoidal cross-section, trapezoidal platforms 11 are naturally generated on the side of trapezoid 12. The trapezoidal inclined surface can evenly distribute the stress to the trapezoidal platforms 11 on both sides of the recessed structure when the belt is under tension, forming better stability, avoiding stress concentration, improving fatigue strength and service life. At the same time, the symmetrical structure can maintain consistent performance in both forward and reverse transmission. After the strip-shaped protrusions 32 are engaged in the trapezoid 12, the trapezoidal platforms 11 on both sides form a barrier, which is suitable for scenarios that require bidirectional stable transmission. The inclined sidewalls also provide natural guidance for the engagement of the strip-shaped protrusions 32, making the engagement smoother, thereby achieving the technical effects of smooth transmission, uniform force, and high durability.

[0042] like Figure 8 As shown in the figure, the specific structure of the parallelogram 22 is revealed. When the recessed structure adopts a parallelogram recessed belt 2 with a cross-section of parallelogram, the side of the parallelogram 22 naturally generates a wing-shaped platform 21. This asymmetrical structure can convert the tension into a normal force on the wing-shaped platform 21 when the belt is subjected to force in a specific direction, providing excellent unidirectional locking and anti-reverse capability, and enhancing the belt's anti-slip capability. This structure also gives the belt extremely high tensile strength in a specific direction, making it particularly suitable for unidirectional transmission scenarios.

[0043] Example 3: like Figure 3 and Figure 4 As shown, in order to achieve better technical results, the third embodiment of the belt buckle and belt of this utility model is based on the first embodiment and the second embodiment, and further improvements are proposed. The difference from the first embodiment is that, in order to reduce the overall thickness of the connection, a connecting section 35 is added between the bottom plate 3 and the lug 31 of the belt buckle.

[0044] Specifically, the base plate 3 of the belt buckle and the lug 31 are not directly connected, but are fixedly connected through a specific connecting section 35.

[0045] The connecting segment 35 starts from one end of the base plate 3, extends along the direction of the strip-shaped protrusion 32, and finally connects with the lug 31. This design creates a distinct raised step between the base plate 3 and the lug 31, thereby creating an accommodating space between them for accommodating another belt buckle component.

[0046] More specifically, the angle between the connecting segment 35 and the plane of the base plate 3 is designed to be within the range of 20° to 90°. When the angle is close to 90°, the connecting segment 35 is nearly vertical, achieving the maximum accommodating depth and thus most effectively reducing the total thickness of the connection. This is suitable for scenarios with extremely demanding space requirements. However, in the inventors' field practice, this angle has been found to be relatively difficult to manufacture. Therefore, a smaller angle, such as 45° to 60°, can also be used. When an angle of 45° to 60° is used, the connecting section 35 is sloped. Although this design has a shallower accommodating depth, it can provide better stress distribution when subjected to tensile force, which helps to improve the structural strength and fatigue resistance of the connection.

[0047] During production, the connecting section 35 of one belt buckle is machined at a predetermined angle so that its lug 31 is in a raised state. Then, the lug 31 of another belt buckle is inserted into the receiving space formed by the base plate 3 of the belt buckle, the lug 31 and the connecting section 35, and finally the connector 4 is used to fix it through the connecting hole 311 of the two.

[0048] Through this staggered mating structure, the two belt buckles can be interlocked rather than simply stacked, thereby reducing the overall thickness at the connection and making the belt run more smoothly.

[0049] Example 4: like Figure 5 and Figure 6 As shown, in order to achieve better technical results, the fourth embodiment of the belt buckle and belt of this utility model proposes further improvements based on the first embodiment and the second embodiment. The difference from the first embodiment is that, in order to solve the problem that when a single connector 4 connects the overlapping lugs 31, the lugs 31 are prone to swinging once the connector 4 is loose, an anti-sway structure for mutual cooperation is added to the mating surface of the lugs 31 of the belt buckle.

[0050] Specifically, the anti-sway structure adopts a snap-fit ​​form, including a first snap-fit ​​member 33 and a second snap-fit ​​member 34.

[0051] In actual setup, the first snap-fit ​​connector 33 and the second snap-fit ​​connector 34 are respectively set on the mating surfaces of the two lugs 31 that need to be mated. That is, the first snap-fit ​​connector 33 is set on the mating surface of one lug 31, and the second snap-fit ​​connector 34 that mates with it is set on the mating surface of the other lug 31.

[0052] The first snap-fit ​​component 33 can be specifically implemented as a protruding serration, protrusion, or pin structure, while the second snap-fit ​​component 34 is correspondingly a groove, hole, or a structure complementary in shape to the first snap-fit ​​component 33. When the lugs 31 of the two belt buckles are connected by the connector, the first snap-fit ​​component 33 and the second snap-fit ​​component 34 will cooperate with each other. This cooperation structure can effectively limit the relative swing of the two belt buckles in the radial plane, eliminate the hidden dangers caused by the loosening of a single connector 4, and the snap-fit ​​component can also play a pre-positioning role during installation, making it easier to align the lugs 31 holes, improving assembly efficiency, and further stabilizing the tension.

[0053] It is understandable that in practical use, it is not only possible to use a belt with a buckle at one end to connect as a belt loop, but the application scope can also be further expanded to the combination and connection of multiple belts.

[0054] Specifically, in actual construction, at least two belts can be joined at their ends according to the required transmission distance. The end of the first belt is aligned with the beginning of the second belt, so that the lugs 31 fixed to the belt buckles at these two ends overlap. A connector 4 is then used to pass through the connecting holes 311 of the overlapping lugs 31, thereby connecting multiple independent short belts into a continuous long belt. This modular connection method greatly improves the applicability and flexibility of the belts, allowing for flexible combinations according to the actual shed dimensions, reducing manufacturing and storage costs. During on-site construction, construction personnel only need to carry standard belts to handle various situations.

[0055] Furthermore, such as Figure 11 As shown, through on-site practice, the inventors discovered that the concave structures on the surfaces of multiple short belts connected together can be combined in different orientations according to the on-site working conditions to adapt to complex reciprocating drive systems with multiple drive wheels and driven wheels. In particular, in compact drive assemblies with tension pulleys and closely arranged transmission paths, adjacent belts can be connected with concave structures facing opposite directions.

[0056] That is, during docking, the concave structure of one belt is oriented in the opposite direction to the concave structure of the other belt.

[0057] This unique connection method allows the spliced ​​belt to provide effective transmission contact surfaces on both its inner and outer sides simultaneously, essentially forming a double-sided transmission belt. This allows the belt to engage with pulleys on the top and bottom or inner and outer sides of the drive assembly, significantly optimizing the transmission path layout and improving transmission efficiency and stability. It is particularly suitable for smart canopies where space is limited and efficient reciprocating drive within a small area is required.

[0058] In summary, the workflow of this utility model is as follows: During installation, firstly, place the end of the belt on the belt buckle base plate 3, so that the strip-shaped protrusions 32 on both sides of the belt span the two sides. Use a tool to bend the strip-shaped protrusions 32 inward to cover the surface of the belt. When using the second embodiment, the interlocking concave and convex teeth 321 at the top of the strip-shaped protrusions 32 interlock with each other. If the belt surface has a recessed structure, the protrusions are precisely embedded in it to form a mechanical interlock. Then, connect the lugs 31 of the two belt buckles. When using the fourth embodiment, the snap-fit ​​components on the mating surfaces of the lugs 31 need to be pre-aligned and fitted. When using the third embodiment, first, the lug 31 of one belt buckle raised by the connecting section is misaligned with the lug 31 of the other belt buckle to accommodate it. Finally, use the connector 4 to pass through the overlapping lug 311 connecting holes 311 and tighten it to complete the assembly. During operation, the drive device pulls the belt to move, and the tension is evenly transmitted through the locking structure between the belt buckle and the belt. When replacement is needed, simply disassemble the connector 4 to separate the belt buckle, keeping the belt body intact. Then, use a tool to straighten the strip-shaped protrusions 32 to remove the old belt buckle. Install the new belt buckle onto the old belt following the original procedure to achieve reuse.

[0059] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A belt buckle, characterized in that: The belt buckle includes a base plate (3), and both sides of the base plate (3) are provided with a pair of spaced strip teeth (32). The strip teeth (32) extend in a direction perpendicular to the base plate (3). One end of the base plate (3) extends in the length direction to form a lug (31) parallel to the base plate (3). A connecting hole (311) is provided on the lug (31).

2. The belt buckle according to claim 1, characterized in that: The extension length of the strip-shaped protrusion (32) is greater than half the width of the base plate (3). Each strip-shaped protrusion (32) has a concave-convex tooth (321) at its top end. The concave-convex teeth (321) on the top ends of two opposite strip-shaped protrusions (32) are staggered.

3. The belt buckle according to claim 2, characterized in that: The base plate (3) and the lug (31) are fixedly connected by a connecting section (35), so that a space is formed between the base plate (3) and the lug (31) to accommodate the lug (31) extending from another belt buckle base plate (3). The included angle between the connecting section (35) and the base plate (3) is 20°-90°.

4. The belt buckle according to claim 1 or 2, characterized in that: The mating surface of the buckle lug (31) is provided with a snap-fit ​​component for mating. The snap-fit ​​component includes a first snap-fit ​​member (33) and a second snap-fit ​​member (34) that are matched and snap-fitted with each other. Either the first snap-fit ​​member (33) or the second snap-fit ​​member (34) is provided on the mating surface of any lug (31).

5. A belt, comprising a belt body, characterized in that: The belt body is provided with belt buckles as described in any one of claims 1-4 at both ends. The strip-shaped protrusions (32) of the belt buckle are bent inward and fixedly covered to the belt body. The belt buckles at both ends of the belt body are fixedly connected by overlapping lugs (31) and by connecting members (4) passing through the connecting holes (311) of the overlapping lugs (31).

6. The belt according to claim 5, characterized in that: The surface of the belt body is also provided with recessed structures at intervals for accommodating the strip-shaped protrusions (32). The end of the belt body is accommodated between the bottom plate (3) of the belt buckle and the strip-shaped protrusions (32). When the strip-shaped protrusions (32) are bent, they are inserted into the recessed structures.

7. The belt according to claim 6, characterized in that: The cross-section of the recessed structure is trapezoidal (12).

8. The belt according to claim 6, characterized in that: The cross-section of the recessed structure is a parallelogram (22).

9. The belt according to claim 6, characterized in that: The belts are at least two, with the buckle lug (31) at one end of one belt overlapping with the buckle lug (31) at one end of the other belt, and are fixedly connected by the connector (4).

10. The belt according to claim 9, characterized in that: The two belts are fixedly connected with their concave structures facing opposite directions.

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