Tool box

Abstract

The invention provides a tool box which comprises a box body, a clamping hook is arranged at the bottom of the box body, and a hook opening of the clamping hook faces forwards / backwards; the box cover is arranged on the box body and comprises a buckling piece, the buckling piece is installed on the box cover in a sliding mode and comprises a containing cavity with a clamping groove, and the containing cavity is communicated with the top face of the box cover; the automatic locking mechanism is arranged in the box cover, and the upper end of the automatic locking mechanism is exposed out of the bottom surface of the accommodating cavity; when at least two tool boxes are stacked, the clamping hook of the tool box located on the upper portion presses the automatic locking mechanism of the tool box located on the lower portion; the buckle piece automatically slides backwards / forwards until the clamping hook of the tool box located on the upper portion and the clamping groove of the tool box located on the lower portion are clamped; on the contrary, the clamping connection of the upper tool box and the lower tool box is released by sliding the buckling piece forwards / backwards. The problems that in the prior art, stacked tool boxes are poor in overall connection stability and need to be manually connected and locked are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of tool boxes, and in particular to a tool box. Background Art

[0002] Toolboxes are mainly used to store various tools. When multiple toolboxes need to be stored or carried together, they are usually stored or carried in a stacked manner. When stacking toolboxes in the prior art, stable stacking of multiple toolboxes is achieved mainly by setting corresponding depressions, protrusions or bayonet structures at specific positions on the toolbox lid and bottom. This design concept is simple and direct, and can meet the user's needs for space utilization to a certain extent, especially when multiple toolboxes need to be stored in a limited space, it can effectively save floor space. However, this design has the problem that the overall connection stability of the stacked toolboxes is poor, and they are easily shaken or collapsed by external forces, which is not conducive to transportation and movement.

[0003] Furthermore, in order to improve the connection stability between the tool boxes after stacking, technicians in this field have designed a snap-on structure to enhance the connection's ability to resist vibration or shaking. However, the snap-on structure requires a separate one-step snap-on locking operation after the tool boxes are stacked. Although the operation is simple, it is easily forgotten by the operator. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a tool box that can automatically lock the connection between the upper and lower tool boxes when the tool boxes are stacked, thereby solving the problem in the prior art that the overall connection stability of the stacked tool boxes is poor and manual connection and locking are required.

[0005] In order to achieve the above purpose and other purposes, the present invention is implemented by including the following technical solutions: the present invention proposes a tool box, including a box body, a hook is provided at the bottom, and the hook mouth of the hook faces forward / rearward; a box cover is arranged on the box body, including a fastener, slidably installed on the box cover, including a accommodating cavity with a slot, and the accommodating cavity is connected to the top surface of the box cover; an automatic locking mechanism is arranged in the box cover, and its upper end is exposed to the bottom surface of the accommodating cavity; when at least two of the tool boxes are stacked, the hook of the tool box located on the upper side presses down the automatic locking mechanism of the tool box located on the lower side, and the fastener automatically slides backward / front until the hook of the tool box located on the upper side is completely engaged with the slot of the tool box located on the lower side, so that the upper and lower tool boxes are locked; conversely, the automatic locking mechanism is unlocked by sliding the fastener forward / backward.

[0006] In one embodiment, a connecting portion is provided on the bottom surface of the latch; the automatic locking mechanism includes a positioning pin assembly, the upper end of which is exposed from the bottom surface of the accommodating cavity, and the rear / front end is abutted against the connecting portion; a first elastic member, the rear / front end is fixedly arranged on the connecting portion, and the front / rear end is fixedly arranged on the box cover; when at least two tool boxes are stacked, the hook of the tool box located on the upper side presses down the positioning pin assembly of the tool box located on the lower side, the first elastic member drives the connecting portion to move backward / forward, and the latch automatically slides backward / front.

[0007] In one embodiment, the positioning pin assembly includes a positioning pin, a second elastic member and a base; a protrusion is provided on the upper end surface of the positioning pin, and the protrusion is exposed from the bottom surface of the accommodating cavity; the lower end surface of the positioning pin extends radially outward to form a fixing portion for connecting the upper end of the second elastic member; the lower end surface of the positioning pin extends axially downward to form a clamping portion, which is installed in the central mounting groove of the base; the lower end of the second elastic member is fixedly sleeved outside the central mounting groove.

[0008] In one embodiment, the automatic locking mechanism further comprises a third elastic member, the front / rear end of the third elastic member is fixedly connected to the box cover, and the rear / front end is connected to the front / rear end of the positioning pin assembly.

[0009] In one embodiment, a mounting through hole is provided on the bottom surface of the accommodating cavity, and a connecting slide groove and a limiting groove are provided on the bottom surface of the fastener, the width of the limiting groove is greater than the width of the slide groove, and the limiting groove is connected to the mounting through hole; the limiting groove cooperates with the limiting surface of the positioning pin, so that only the protrusion is exposed from the bottom surface of the accommodating cavity through the limiting groove and the mounting through hole.

[0010] In one embodiment, the tool box further comprises a slide rail fixedly connected to the box cover, and a guide block is arranged on the upper end surface of the slide rail, and the guide block is movably connected to the guide groove of the buckle.

[0011] In one embodiment, the snap-fitting member is slidably installed in the first installation groove, and a first through hole is provided on the bottom surface of the first installation groove, and the first through hole is used to expose the guide block.

[0012] In one embodiment, a reinforcing rib is provided between the hook and the side surface of the box body.

[0013] In one embodiment, a step structure is provided on both the front and rear sides of the upper end surface of the buckle; and a direction indication icon is provided on the side or top surface of the buckle.

[0014] In one embodiment, an operating portion is provided on the buckle component, and the operating portion is provided on the side surface or the top surface of the buckle component.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides a hook at the bottom of the box body, and an automatic locking mechanism and a sliding fastener on the box cover. When the tool boxes are stacked, the fastener can be pressed down on the upper end of the automatic locking mechanism to achieve automatic sliding of the fastener, so that the fastener of the lower tool box is connected to the hook of the upper tool box, thereby solving the problem of manually connecting and locking the upper and lower tool boxes in the prior art. At the same time, the upper tool box can be disengaged and taken away by simply toggling the fastener. In the locked state, the displacement of the stacked tool boxes in the vertical and horizontal directions is restricted, so the stacked tool boxes will not shake or collapse due to the shift of the center of gravity when subjected to external vibration or shaking, which can effectively solve the problem of poor overall connection stability of the stacked tool boxes in the prior art, which is not conducive to transportation and movement.

[0017] 2. The present invention can realize the automatic sliding of the buckle by pressing down the locating pin of the locating pin assembly through the cooperation between the locating pin assembly and the first elastic member, so as to complete the buckle connection of the buckle of the lower tool box to the hook of the upper tool box, which has a simple structure and is easy to operate;

[0018] 3. The third elastic member of the present invention can provide a sense of resistance and elastic force to return to normal. When the latch is pressed against the positioning pin assembly, the elastic force of the third elastic member needs to be overcome to continue to push. The different force feelings can assist the operator in judging whether the push is in place, and the entire automatic locking mechanism can automatically return to its initial state under the action of the elastic force.

[0019] 4. The design of the slide rail in the present invention can improve the smoothness of sliding of the buckle;

[0020] 5. The present invention provides a step structure on both sides of the upper end surface of the buckle to cooperate with the opening of the installation slot, which can limit the sliding distance of the buckle to be too long, so that the slot over-extrudes the hook, thereby causing the hook to break accidentally or affecting the service life of the hook;

[0021] 6. A reinforcing rib is provided between the hook and the side of the box body of the present invention, which can enhance the structural strength of the hook and increase its service life;

[0022] 7. The coordinated design of the step structure and the direction indicator icon of the present invention can prevent the operator from unlocking the latch 130 due to the wrong operation direction after stacking at least two tool boxes and automatically locking them, or from damaging the automatic locking structure by continuing to operate in the operation direction due to inability to determine the position;

[0023] 8. The design of the operating portion on the buckle of the present invention can facilitate the installation and manipulation of the buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is a schematic diagram of the structure when two toolboxes are stacked.

[0025] Figure 2 It is a schematic cross-sectional view of the first position of the box cover in the present invention.

[0026] Figure 3 It is a cross-sectional schematic diagram of the second position of the box cover in the present invention.

[0027] Figure 4 It is a schematic cross-sectional view of the box cover in the third position of the present invention.

[0028] Figure 5 Shown is a schematic diagram of the partial structure of the front side of the box cover in the present invention.

[0029] Figure 6 Shown is a schematic diagram of the partial structure of the back side of the box cover in the present invention.

[0030] Figure 7 It is a schematic diagram showing the structure after the automatic locking mechanism is installed on the back of the box cover in the present invention.

[0031] Figure 8 It is a schematic diagram showing the structure of the buckle in the first angle of the present invention.

[0032] Fig. 9 It is a schematic diagram showing the structure of the fastener at a second angle in the present invention.

[0033] Fig.10 Shown is a schematic structural diagram of the positioning pin assembly of the present invention.

[0034] Fig.11 Shown is an exploded schematic diagram of the positioning pin assembly of the present invention.

[0035] Fig.12 Shown is a schematic diagram of the structure of the slide rail in the present invention.

[0036] Fig.13 The cross-sectional view shows the position of the latch in place when the latch is pushed to release the connection between the two tool boxes. DETAILED DESCRIPTION

[0037] See also Figure 1-Figure 13 The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0038] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for the technical personnel in this field to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportion relationship or adjustment of the size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0039] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings as understood by a person having ordinary skills in the field to which the present invention belongs. The directional terms such as "upper", "lower", "front", "back", "left" and "right" used in the present invention are based on the attached Figure 1 The orientation of a part does not imply limitation of the orientation. Words such as "one", "an" or "the" and the like do not imply limitation of quantity, but are only used to indicate the existence of at least one. Words such as "include" or "comprise" and the like mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The serial numbers assigned to the components in this specification, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" mentioned in the present invention, unless otherwise specified, includes direct and indirect connections.

[0040] In order to avoid confusion with the present invention, some technical features known in the art are not described.

[0041] like Figure 1-Figure 4 As shown, this embodiment provides a tool box 100, including a box body 110, a box cover 120, a buckle 130, a slide rail 140 and an automatic locking mechanism, wherein the automatic locking mechanism includes a positioning pin assembly 150, a third elastic member 161 and a first elastic member 162.

[0042] Two hooks 111 are respectively arranged on the left and right sides of the bottom of the box body 110; further, reinforcing ribs 1111 are arranged between the hooks 111 and the sides of the box body 110, and the arrangement of the reinforcing ribs 1111 can enhance the structural strength of the hooks 111. The box cover 120 is arranged on the box body 110, and a first installation groove 121 for installing the buckle 130 is respectively arranged on the left and right side surfaces thereof.

[0043] The top surface of the first installation groove 121 is provided with an opening 1211 , which penetrates the top surface of the box cover 120 , so that when two tool boxes 100 are stacked, the hook 111 of the upper box body 110 can be connected to the buckle 130 through the opening 1211 .

[0044] Please combine Figure 5The bottom surface of the first mounting groove 121 is provided with a first through hole 1212, a second through hole 1213 and a third through hole 1214. The first through hole 1212 is used to expose the guide block 141 on the slide rail 140. Its shape, number and arrangement direction are matched with the shape and arrangement direction of the guide block 141. For example, the first through hole 1212 can be in the shape of a long strip, with two in number, and the length direction is the front-to-back direction. The second through hole 1213 is located in the projection area of ​​the opening 1211, and is used to expose the positioning pin 151 of the positioning pin assembly 150. The positioning pin 151 can slide in the second through hole 1213, and the sliding direction is consistent with the length direction of the first through hole 1212, which is the front-to-back direction in this embodiment. The third through hole 1214 is used to pass the connecting portion 136 of the buckle 130. The connecting portion 136 can slide in the third through hole 1214, and the sliding direction is consistent with the length direction of the first through hole 1212, which is the front-to-back direction in this embodiment.

[0045] like Figure 6 and Figure 7 As shown, the inner side of the box cover 120 is provided with a second mounting groove 122 and a third mounting groove 123, both of which are located on the back side of the bottom surface of the first mounting groove 121, and the second mounting groove 122 is connected with the second through hole 1213. The second mounting groove 122 is used to install the positioning pin assembly 150 and the third elastic member 161; the front end of the third elastic member 161 abuts against the front wall of the second mounting groove 122, and the rear end abuts against the positioning pin assembly 150. The third mounting groove 123 is arranged parallel to the second mounting groove 122, and is used to install the first elastic member 162.

[0046] Please combine Figure 1 , Figure 2 and Figure 8 The buckle 130 is slidably installed in the first installation groove 121, and the top surface of the buckle 130 does not exceed the opening 1211, which can reduce the wear of the buckle 130 during daily use. Two accommodating cavities 131 with card slots 132 are arranged on the top of the buckle 130. The two accommodating cavities 131 are respectively connected to the opening 1211 to accommodate the hook 111 of another tool box 100. A mounting through hole 133 is opened on the bottom surface of one of the accommodating cavities 131, and the convex portion 1511 of the positioning pin 151 is exposed from the bottom surface of the accommodating cavity 131 through the mounting through hole 133.

[0047] Furthermore, a step structure 138 is provided on each of the front and rear sides of the upper end surface of the buckle 130, and the step structure 138 can cooperate with the opening 1211 to visually form a prompt of the location of the buckle 130. A direction indicator icon 139 is provided on the buckle 130, and the direction indicator icon 139 can be provided on the side or top surface of the buckle 130 where the first installation groove 121 is exposed, so that the operator can easily know the operation direction of the buckle 130. The coordinated design of the step structure 138 and the direction indicator icon 139 can prevent the operator from unlocking the buckle 130 due to the wrong operation direction after the operator completes the automatic locking of at least two tool boxes 100 stacking, or continue to operate in the operation direction due to failure to determine the position and damage the automatic locking structure.

[0048] In order to facilitate installation of the buckle 130 in the first installation groove 121 and to facilitate the movement of the buckle 130 in the first installation groove 121, an operating portion 130a may be provided on the buckle 130, and the operating portion 130a is provided on the side or top surface of the buckle 130 exposed from the first installation groove 121. The operating portion 130a may be a square groove as shown in the figure, or a circular groove or other shapes required by the design, or a square protrusion or a circular protrusion, so as to facilitate the operator to perform installation and movement operations by hand.

[0049] Please combine Fig. 9 The bottom surface of the buckle 130 is provided with a connected slide groove 134 and a limiting groove 135. The width of the limiting groove 135 is greater than the width of the slide groove 134. The slide groove 134 can accommodate the protrusion 1511 of the positioning pin 151 and allow it to slide therein, but cannot accommodate the body of the positioning pin 151; the limiting groove 134 is connected with the installation through hole 133, so the positioning pin 151 can pass through the installation through hole 133 from one side of the limiting groove 134 to expose the bottom surface of the buckle 130, and once the positioning pin 151 enters the limiting groove 135, the limiting groove 135 can limit the sliding of the positioning pin 151. The bottom surface of the buckle 130 is also provided with a connecting portion 136 for fixing and installing the first elastic member 162. The bottom surface of the buckle 130 is also provided with a guide groove 137 for accommodating and cooperating with the guide block 141 for sliding.

[0050] like Fig.10 and Fig.11 As shown, the positioning pin assembly 150 includes a positioning pin 151, a second elastic member 152, a base 153 and an upper cover 154. A convex portion 1511 is provided on the upper end surface of the positioning pin 151. Figure 4A limiting surface 1512 that cooperates with the limiting groove 135 is formed between the protrusion 1511 and the body of the positioning pin 151. The lower end surface of the positioning pin 151 extends radially outward to form a fixing portion 1513, which is used to connect the upper end of the second elastic member 152. The lower end surface of the positioning pin 151 extends axially downward to form a clamping portion 1514, which is installed in the central mounting groove of the base 153. The lower end of the second elastic member 152 is fixedly sleeved outside the central mounting groove of the base 153. The upper cover 154 is set on the base 153, and the fixing portion 1513 and the clamping portion 1514 of the positioning pin 151 and the second elastic member 152 are covered in the upper cover 154.

[0051] like Fig.12 As shown, combined with Figure 2-Figure 4 The slide rail 140 can be fixedly connected to the box cover 120 by screws, and the automatic locking mechanism is encapsulated in the second mounting groove 122 and the third mounting groove 123. A guide block 141 is provided on the upper end surface of the slide rail 140, and the upper end of the guide block 141 is movably connected to the guide groove 137.

[0052] Please review Figure 2-Figure 4 The front end of the third elastic member 161 is fixedly connected to the front side wall of the second mounting groove 122, and the rear end is connected to the front end of the base 153, and the rear end of the base 153 abuts against the front end surface of the connecting portion 136. The front end of the first elastic member 162 is fixedly connected to the front side wall of the third mounting groove 123, and the rear end is fixedly connected to the connecting portion 136 through the spring fixing seat 163.

[0053] Please combine Figure 2-4 The initial position of the fastener 130 in the box cover 120 is that the positioning pin 151 abuts against the rear end of the second through hole 1213 of the first installation groove 121 , and the front and rear ends of the fastener 130 do not abut against the front and rear walls of the first installation groove 121 . When the box body 110 of another toolbox 100 is lowered onto the current box cover 120, the upper toolbox 100 is pressed down so that the bottom surface of its hook 111 contacts and presses down the convex portion 1511 of the positioning pin 151. When the convex portion 1511 of the positioning pin 151 completely falls into the limiting groove 135 and can enter the slide groove 134 (at this time, the limiting surface 1512 drops to the lower end surface of the latch 130 and below), the positioning pin 151 releases the limit of the latch 130, the elastic force of the first elastic member 162 is greater than the pressure thereon, and its rear end performs a backward reset movement, pushing the connecting portion 136 (i.e., the latch 130) backward, so that the slot 132 of the lower toolbox 100 completes the automatic connection with the hook 111 of the upper toolbox 100. Otherwise, please refer to Fig.13When the tool box 100 on the top needs to be removed, the latch 130 is first pushed in the direction indicated by the direction indicator icon 139 (i.e. forward). During the pushing process, the elastic force of the first elastic member 162 is less than the pressure thereon, and its rear end performs a forward compression movement, pushing the connecting portion 136 (i.e. the latch 130) forward. When the mounting through hole 133 moves forward to the position of the positioning pin 151, the convex portion 1511 of the positioning pin 151 moves upward into the mounting through hole 133 under the elastic force of the second elastic member 152, and the latch 130 is continued to be pushed, driving the positioning pin 151 to move forward together. The elastic force on the third elastic member 161 is less than the pressure thereon, and its rear end performs a forward compression movement until the latch 130 abuts against the front wall of the first mounting groove 121 or the positioning pin 151. 1 abuts against the front end of the second through hole 1213 of the first installation groove 121, at this time, the hook 111 of the upper tool box 100 has completely separated from the slot 132 of the lower tool box 100, and the convex portion 1511 of the positioning pin 151 has completely exposed the bottom surface of the accommodating cavity 131 and moved to the front side of the hook 111; the buckle 130 is released, the elastic force on the third elastic member 161 is greater than the pressure thereon, and its rear end performs a backward reset movement until the rear end of the convex portion 1511 of the positioning pin 151 abuts against the front end of the hook 111 and is limited; finally, after the upper tool box 100 is removed upward, the third elastic member 161 continues to push the positioning pin 151 to move backward under the action of the elastic force until the positioning pin 151 abuts against the rear end of the second through hole 1213 of the first installation groove 121 and returns to the initial state.

[0054] It should be noted that in this embodiment, the hook mouth of the hook 111 faces forward, and when the tool boxes 100 are stacked, the lower hook 130 automatically slides backward to engage the upper hook, so it is necessary to apply a forward thrust to the hook 130 when unlocking. In other embodiments, when the hook mouth of the hook 111 faces backward, when the tool boxes 100 are stacked, the lower hook 130 automatically slides forward to engage the upper hook, so it is necessary to apply a backward thrust to the hook 130 when unlocking.

[0055] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value. The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology can modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A tool box, characterized in that: include The box body has a hook at the bottom, and the hook opening of the hook faces forward / backward; A box cover, arranged on the box body, comprises A buckle, slidably mounted on the box cover, comprising a receiving cavity with a card slot, wherein the receiving cavity is communicated with the top surface of the box cover; An automatic locking mechanism is arranged in the box cover, and its upper end is exposed from the bottom surface of the accommodating cavity; When at least two of the toolboxes are stacked, the hook of the toolbox on top presses down the automatic locking mechanism of the toolbox on the bottom, and the fastener automatically slides backward / frontward until the hook of the toolbox on top is engaged with the slot of the toolbox on the bottom, thereby locking the upper and lower toolboxes; conversely, the automatic locking mechanism unlocks the upper and lower toolboxes by sliding the fastener forward / backward.

2. The tool box according to claim 1, characterized in that: The bottom surface of the buckle is provided with a connecting portion; the automatic locking mechanism includes A positioning pin assembly, the upper end of which is exposed from the bottom surface of the accommodating cavity, and the rear / front end of which is in contact with the connecting portion; A first elastic member, the rear / front end of which is fixedly mounted on the connecting portion, and the front / rear end of which is fixedly mounted on the box cover; When at least two of the tool boxes are stacked, the hook of the tool box located on the upper side presses down the positioning pin assembly of the tool box located on the lower side, the first elastic member drives the connecting part to move backward / forward, and the buckle automatically slides backward / front.

3. The tool box according to claim 2, characterized in that: The positioning pin assembly includes a positioning pin, a second elastic member and a base; a convex portion is provided on the upper end surface of the positioning pin, and the convex portion is exposed from the bottom surface of the accommodating cavity; the lower end surface of the positioning pin extends radially outward to form a fixing portion for connecting the upper end of the second elastic member; the lower end surface of the positioning pin extends axially downward to form a clamping portion, which is installed in the central mounting groove of the base; the lower end of the second elastic member is fixedly sleeved outside the central mounting groove.

4. The tool box according to claim 2 or 3, characterized in that: The automatic locking mechanism also includes a third elastic member, the front / rear end of the third elastic member is fixedly connected to the box cover, and the rear / front end is connected to the front / rear end of the positioning pin assembly.

5. The tool box according to claim 3, characterized in that: A mounting through hole is provided on the bottom surface of the accommodating cavity, and a connecting slide groove and a limiting groove are provided on the bottom surface of the fastener. The width of the limiting groove is greater than the width of the slide groove, and the limiting groove is connected to the mounting through hole; the limiting groove cooperates with the limiting surface of the positioning pin, so that only the protrusion is exposed from the bottom surface of the accommodating cavity through the limiting groove and the mounting through hole.

6. The tool box according to claim 1, characterized in that: It also includes a slide rail fixedly connected to the box cover, and a guide block is arranged on the upper end surface of the slide rail, and the guide block is movably connected to the guide groove of the buckle.

7. The tool box according to claim 6, characterized in that: The buckle is slidably installed in the first installation groove. The bottom surface of the first installation groove is provided with a first through hole, and the first through hole is used to expose the guide block.

8. The tool box according to claim 1, characterized in that: A reinforcing rib is arranged between the hook and the side surface of the box body.

9. The tool box according to claim 1, characterized in that: The front and rear sides of the upper end surface of the buckle are respectively provided with step structures; the side surface or the top surface of the buckle is provided with a direction indication icon.

10. The tool box according to claim 1, characterized in that: The buckle is provided with an operating portion, and the operating portion is arranged on the side surface or the top surface of the buckle.

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