JP7390063B2 - toolbox - Google Patents

Description

The present invention relates to a tool box.

When fixing an article, it is common to attach or detach the article by driving a locking member or a connecting member using a driving tool (for example, a wrench, a socket, a driver bit, etc.). However, such drive tools come in many sizes and types, and for ease of storage and transportation, they are often categorized and stored using tool boxes. Known tool boxes include a plurality of plastic plate members. These plurality of plastic plate members are assembled two by two using screw members, and have the advantage that they can be assembled easily and quickly.

However, plastic materials have low structural strength, so when attaching connecting parts such as locks and hinges to the box body, the structure of the box body becomes brittle and breaks. Bending deformation is likely to occur when connecting parts are engaged, and in severe cases, breakage may occur, resulting in a shortened service life.

Therefore, there is a need to provide a new and inventive tool box to solve the problems described above.

The present invention achieves a good balance between structural strength and weight reduction by combining different materials by combining a metal frame with a plastic rib, and furthermore, the positioning member for positioning the engaging part completely penetrates the frame. Therefore, the main purpose is to provide a tool box that distributes the acting force mainly on a hard metal frame and maintains the structure of the plastic ribs completely.

To achieve the above object, the present invention provides a tool box including a base, a cover, at least one locking unit, and a plurality of hinges. The base includes a main frame, a mounting box, at least one storage box, a first rib, and a first frame, and an internal space, a first opening, and a second opening that communicate with each other are connected to the main frame. the mounting box is defined by a frame, the mounting box is provided on the main frame and covers the first opening, at least one of the mounting box and the main frame is provided with an annular surface, and the first rib is defined by the The first frame extends along the opening direction of the first opening and protrudes from the annular surface, and the first frame includes two first side walls and one first end wall, and the two first side walls are connected to the first end wall. horizontally connected to opposite sides of an end wall, both of which define a first wrap space, the first rib inserted into the first wrap space, and the at least one storage box in the second opening; The first frame is inserted into the main frame so as to enter the inner space along the main frame, the first frame is made of a metal material, and the first rib is made of a plastic material. The cover is pivotally connected to the base and includes a second rib and a second frame, the second frame includes two second side walls and one second end wall, and the second frame includes two second side walls and one second end wall. A first side wall is horizontally connected to opposite sides of the first end wall, both of which define a second wrap space, and the second rib is inserted into the second wrap space, and the second frame is inserted into the second wrap space. is made of metal, and the second rib is made of plastic. The at least one lock unit includes a first engaging part, a second engaging part, a plurality of first positioning members, and a plurality of second positioning members, and the first engaging part includes a plurality of second positioning members. The second engaging portion is positioned on the first frame by a first positioning member, the second engaging portion is positioned on the second frame by the plurality of second positioning members, and the first engaging portion and the second engaging portion are positioned on the second frame by the plurality of second positioning members. The portions are interconnected upon external manipulation to prevent the cover from opening relative to the base. Each said hinge includes a pivot member, a plurality of third positioning members, and a plurality of fourth positioning members, each said third positioning member having one third connecting shaft and two third positioning members. the third connecting shaft passes through one end of the pivot member, the first rib and the two first side walls, and the two third connecting shafts extend through the third connecting shaft. The two third stop portions each interfere with the pivot member and one of the first side walls in the extending direction of the third connecting shaft, and each of the fourth stop portions The member includes one fourth connecting shaft and two fourth stops, the fourth connecting shaft passing through the other end of the pivot member, the second rib and the two second side walls. , the two fourth stop portions are connected to opposite ends of the fourth connection shaft, and the two fourth stop portions are respectively connected to the pivot member and the one end in the extending direction of the fourth connection shaft. and the two second side walls interfere with each other. Each of the first positioning members includes one first connecting shaft and two first stop parts, and the first connecting shaft passes through the first engaging part, the first rib, and the two first side walls. The two first stop portions are connected to opposite ends of the first connection shaft, and the two first stop portions are connected to the first engagement portion and the one end in the extending direction of the first connection shaft, respectively. The first side wall interferes with the first side wall. Each of the second positioning members includes one second connecting shaft and two second stop parts, and the second connecting shaft passes through the second engaging part, the second rib, and the two second side walls. The two second stop portions are connected to opposite ends of the second connection shaft, and the two second stop portions are connected to the second engagement portion and the one end in the extending direction of the second connection shaft, respectively. The second side wall and the second side wall interfere with each other.

FIG. 1 is a perspective view of an embodiment of the present invention. FIG. 3 is a schematic diagram of the cover according to an embodiment of the present invention when it is opened with respect to the base. FIG. 2 is an exploded view of FIG. 1; 1 is a main frame of an embodiment of the present invention. FIG. 3 is a schematic diagram of a convex portion and a concave portion according to an embodiment of the present invention. FIG. 2 is a partial cross-sectional view of a lock unit according to an embodiment of the present invention. FIG. 2 is a partial cross-sectional view of a hinge according to an embodiment of the present invention. FIG. 2 is a perspective view of a lock unit according to an embodiment of the present invention. 9 is a view from another viewing angle of FIG. 8; FIG. FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1; 11 is a partially enlarged view of FIG. 10. FIG. FIG. 2 is a sectional view taken along the line BB in FIG. 1; 13 is a partially enlarged view of FIG. 12. FIG.

Hereinafter, possible embodiments of the present invention will be described in Examples, but the patent scope of the present invention is not limited.

An embodiment of the present invention is shown in FIGS. 1-12. The tool box of the invention includes a base 1, a cover 2 and at least one locking unit 4.

The base 1 includes a main frame 11 , a mounting box 15 , at least one storage box 16 , a first rib 17 , and a first frame 18 . An interior space 111, a first opening 112, and a second opening 113 which are in communication with each other are defined by the main frame 11, and the mounting box 15 is installed in the main frame 11 to cover the first opening 112.
At least one of the mounting box 15 and the main frame 11 is provided with an annular surface 19, and the first rib 17 extends along the opening direction of the first opening 112 and protrudes from the annular surface 19. do. The first frame 18 includes two first side walls 181 and one first end wall 182, and the two first side walls 181 are horizontally connected to opposite sides of the first end wall 182. A first envelope space 183 is defined by both. The first rib 17 is inserted into the first wrapping space 183, and the at least one storage box 16 is inserted into the main frame 11 along the second opening 113 and into the internal space 111. Here, the first frame 18 is made of a metal material, and the first rib 17 is made of a plastic material.

The cover 2 is pivotably attached to the base 1 and includes a second rib 21 and a second frame 22. The second frame 22 includes two second side walls 221 and one second end wall 222, and the two second side walls 221 are horizontally connected to opposite sides of the second end wall 222. A second wrapping space 223 is defined by both, and the second rib 21 is inserted into the second wrapping space 223.

A protrusion 184 is provided on one of the first end wall 182 and the second end wall 222, and a groove 224 is provided on the other, and the shape of the protrusion 184 and the shape of the groove 224 are different. are consistent with each other. The protrusion 184 extends to gradually contract, and when the cover 2 and the base 1 are combined with each other, the gradually contracting structure guides the protrusion 184 into the groove 224. This contributes to securely coupling the cover 2 to the base 1.

The at least one lock unit 4 includes a first engaging part 41 , a second engaging part 42 , a plurality of first positioning members 43 , and a plurality of second positioning members 44 . The first engaging portion 41 is positioned on the first frame 18 by the plurality of first positioning members 43, and the second engaging portion 42 is positioned on the second frame 22 by the plurality of second positioning members 44. The first engaging part 41 and the second engaging part 42 are connected to each other when operated from the outside to prevent the cover 2 from opening with respect to the base 1. Here, the first frame 18 and the second frame 22 made of metal can effectively provide supporting force to the at least one lock unit 4, and maintain the structure even after long-term use. deformation can be avoided. In this implementation, aluminum is used for manufacturing, which has advantages such as strength, lightness, and appearance.

Each of the first positioning members 43 includes one first connecting shaft 431 and two first stop parts 432, and the first connecting shaft 431 includes the first engaging part 41, the first rib 17, and the second stop part 432. The two first side walls 181 are penetrated. The two first stop portions 432 are connected to opposite ends of the first connection shaft 431, and the two first stop portions 432 each connect to the first engagement portion 41 in the extending direction of the first connection shaft 431. and one of the first side walls 181. In other words, the first connecting shaft 431 completely passes through the two first side walls 181, and both of the two first stop portions 432 abut and press against the stronger first frame 18. Thereby, the structural integrity of the first rib 17 is further ensured.
Similarly, each second positioning member 44 includes one second connecting shaft 441 and two second stop portions 442, and the second connecting shaft 441 is connected to the second engaging portion 42, the second rib 21, and and the two second side walls 221, the two second stop portions 442 are connected to opposite ends of the second connection shaft 441, and the two second stop portions 442 are connected to the second connection shaft, respectively. 441, the second engaging portion 42 and one of the second side walls 221 interfere with each other.

Preferably, the tool box further includes a plurality of support units 9 so that the cover 2 is held in a certain position when opened relative to the base 1 and is not opened or closed unintentionally. Each support unit 9 includes a first support member 91 and a second support member 92, one end of the first support member 91 is connected to the first frame 18, and one end of the second support member 92 is connected to the first frame 18. It is connected to the second frame 22, and the other end of the first support member 91 and the other end of the second support member 92 are pivotally connected to each other.

Also, preferably, the cover 2 is provided with a handle 23 so that the cover 2 can be easily carried after being coupled to the base 1.

Furthermore, the first engaging part 41 includes a first base body 411 , a buckle 412 , and a pull member 415 , and the second engaging part 42 includes a second base body 421 and a fitting hole 422 . The first base body 411 is connected to the base 1 by the plurality of first positioning members 43, the second base body 421 is connected to the cover 2 by the plurality of second positioning members 44, and the pulling member 415 is connected to the base 1 by the plurality of first positioning members 43. The buckle 412 is pivotally mounted on the first base body 411 , and the buckle 412 is connected to the pull member 415 to form an interlocking relationship and can be engaged with the second base body 421 . The fitting hole 422 is recessed in the second base 421, and the buckle 412 includes an annular body 413 and a fitting part 414 that are connected to each other, and when the annular body 413 is fitted around the second base 421, Then, the fitting portion 414 is fitted into the fitting hole 422.
In this embodiment, the fitting portion 414 is integrally connected to the annular body 413. For example, the fitting portion 414 is stamped into a plate shape and extends in a fan shape, thereby increasing the contact area while ensuring the degree of structural connection.

Furthermore, a first recessed portion 416 is recessed on the side of the first engaging portion 41 facing the base 1, and the first side wall 181 near the first engaging portion 41 is recessed into the first recessed portion 416. stand out. Thereby, the first engaging part 41 comes into close contact with the base 1, improving the quality of assembly. Similarly, a second recess 423 is recessed on the side of the second engaging part 42 facing the cover 2, and the second side wall 221 near the second engaging part 42 is recessed in the second recess 423. Projects to 423.

The tool box further includes a plurality of hinges 5, each hinge 5 including a pivot member 51, a plurality of third positioning members 52, and a plurality of fourth positioning members 53. Each of the third positioning members 52 includes one third connecting shaft 521 and two third stops 522, and the third connecting shaft 521 is connected to one end of the pivoting member 51, the first rib 17 and the two first side walls 181. The two third stop portions 522 are connected to opposite ends of the third connection shaft 521, and the two third stop portions 522 are connected to the pivot in the extending direction of the third connection shaft 521, respectively. The mounting member 51 and the one first side wall 181 interfere with each other.
Each of the fourth positioning members 53 includes one fourth connecting shaft 531 and two fourth stops 532, and the fourth connecting shaft 531 is connected to the other end of the pivoting member 51, and the second It passes through the rib 21 and the two second side walls 221. The two fourth stop portions 532 are connected to opposite ends of the fourth connection shaft 531, and the two fourth stop portions 532 are respectively pivoted in the extending direction of the fourth connection shaft 531. The member 51 and the one second side wall 221 interfere with each other.

The main frame 11 includes a plurality of first walls 12 and a plurality of second walls 13. A plurality of convex portions 61 are provided on one of the plurality of first wall portions 12 and a plurality of second wall portions 13, and a plurality of recessed portions 65 are provided on the other. The adjacent first wall portion 12 and the second wall portion 13 are fitted into each other with the plurality of convex portions 61 and the plurality of recessed portions 65, and one of the first wall portions 12 has the second opening. 113 is installed through it.
Furthermore, the main frame 11 further includes one third wall portion 14 . The two first side walls 181 are inserted and connected to two opposing circumferential sides of the third wall portion 14, and the two second side walls 221 are inserted and connected to two other opposing circumferential sides of the third wall portion 14. It is inserted and connected to. The combined structure is advantageous in producing each component, increases production speed, and allows the plurality of first wall portions 12 and the plurality of second wall portions 13 to be stacked and stored before assembly. This reduces the occupied space and is advantageous for storage and transportation.

Each convex portion 61 includes a constriction portion 62 and an enlarged end portion 63 connected to the constriction portion 62, and each concave portion 65 includes a constriction opening 66 and an inner groove communicating with the constriction opening 66. 67. Each of the enlarged ends 63 spreads out and passes through the constriction opening 66 and is engaged with the inner groove 67, and each of the constriction openings 66 limits the constriction part 62.
More specifically, a side flange 64 is provided on at least one side of the opposing sides of each enlarged end 63, and each throttle opening 66 has a narrow portion 661 and a narrow portion 661. wide portions 662 connected to opposite sides of 661. Each of the enlarged end portions 63 passes through the constriction opening 66 and is engaged with the inner groove 67, and each of the narrow width portions 661 limits one constriction portion 62. Cooperation with the side flange 64 achieves the effect of effectively engaging the constricted portion 62.

In this embodiment, the number of the plurality of first wall parts 12 and the number of the plurality of first wall parts 12 are two, respectively, and the fitting groove 121 is formed in each of the two first wall parts 12. The top surfaces of the two second wall portions 13 and the groove bottoms of the fitting grooves 121 are flush with each other, and the opposing sides of the mounting box 15 are fitted with the two first wall portions 12. It is accommodated in the groove 121. The other opposing sides of the mounting box 15 are crimped to the top surfaces of the two second walls 13, and both the top surface of the mounting box 15 and the top surface of the two first walls 12 are pressed together. The annular surface 19 is formed by this. That is, the first rib 17 extends to the top surface of the mounting box 15 and the top surfaces of the two first walls 12, and is included by the first frame 18, so that the first rib 17 is separated from the mounting box 15. The stability of the connection between the two first wall portions 12 is further improved.

Furthermore, a peripheral wall 31 is defined by the inner surfaces of the plurality of first walls 12 and the inner surfaces of the plurality of second walls 13, and at least one engagement groove 32 is provided on each opposing side of the peripheral wall 31. . The opposite sides of the at least one storage box 16 are inserted into the at least one engagement groove 32, respectively, to provide a drawer-like insertion method. Further, a locking protrusion 33 is provided on the tank wall of the at least one engagement groove 32, and a locking protrusion 33 is provided on each opposing side of the at least one storage box 16. A locking recess 161 is provided, which increases the restricting effect.

Note that the main frame 11 further includes a plurality of fastening units 7 , and each fastening unit 7 includes a bolt 71 and a nut 72 . One of the adjacent first wall portion 12 and second wall portion 13 includes a plurality of perforations 81 , and the other includes a plurality of accommodation holes 82 corresponding to the plurality of perforation holes 81 . Each accommodation hole 82 accommodates the nut 72, and each bolt 71 is inserted through the drilled hole 81, inserted into the accommodation hole 82, and screwed into the nut 72. The bolts 71 and nuts 72 of each fastening unit 7 clamp, fix and connect the adjacent first wall 12 and second wall 13, respectively. As a result, the combined main frame 11 has extremely high composite strength, can receive large external forces and shocks, and is unlikely to loosen, separate, or break at the joints.

In this embodiment, each accommodation hole 82 includes an accommodation part 821 that accommodates the nut 72 and an extension part 822 that communicates with the accommodation part 821 and is narrower than the accommodation part 821, and each of the bolts 71 It passes through the nut 72 and extends to the extension portion 822 . Preferably, each nut 72 abuts and is restricted by the hole wall of the receiving hole 82, and the end of each bolt 71 abuts the hole wall of the receiving hole 82 in the axial direction, so that the bolt 71 is further avoided from becoming loose.

1 Base 11 Main frame 111 Internal space 112 First opening 113 Second opening 12 First wall 121 Fitting groove 13 Second wall 14 Third wall 15 Mounting box 16 Storage box 161 Locking recess 17 First rib 18 First frame 181 First side wall 182 First end wall 183 First wrapping space 184 Convexity 19 Annular surface 2 Cover 21 Second rib 22 Second frame 221 Second side wall 222 Second end wall 223 Second wrapping space 224 Concave groove 23 Handle 31 Peripheral wall 32 Engagement groove 33 Locking convex portion 4 Lock unit 41 First engagement portion 411 First base 412 Buckle 413 Annular body 414 Fitting portion 415 Pulling member 416 First depression 42 Second engagement Part 421 Second base 422 Fitting hole 423 Second recess 43 First positioning member 431 First connection shaft 432 First stop 44 Second positioning member 441 Second connection shaft 442 Second stop 5 Hinge 51 Pivotal member 52 Third positioning member 521 Third connection shaft 522 Third stop portion 53 Fourth positioning member 531 Fourth connection shaft 532 Fourth stop portion 61 Convex portion 62 Squeezed portion 63 Enlarged end portion 64 Side flange 65 Recessed portion 66 Throttle opening 661 Narrow width part 662 Wide width part 67 Inner groove 7 Fastening unit 71 Bolt 72 Nut 81 Drilling hole 82 Accommodation hole 821 Accommodation part 822 Extension part 9 Support unit 91 First support member 92 Second support member

Claims (9)

It is a tool box,
A main frame includes a main frame, a mounting box, at least one storage box, a first rib, and a first frame, and a communicating internal space, a first opening, and a second opening are defined by the main frame. , the mounting box is disposed on the main frame and covers the first opening, and at least one of the mounting box and the main frame is provided with an annular surface, and the first rib is arranged on the first opening. The first frame extends along the opening direction and protrudes from the annular surface, and the first frame includes two first side walls and one first end wall, and the two first side walls are each adjacent to the first end wall. is connected to opposite sides of the storage box to define a first wrapping space, the first rib is inserted into the first wrapping space, and the at least one storage box is inserted into the interior space along the second opening. a base that is inserted into the main frame so as to be inserted into the main frame, the first frame body being made of metal material, and the first rib being made of plastic material;
the base includes a second rib and a second frame, the second frame includes two second side walls and a second end wall, and the two second side walls include a second rib and a second frame; are respectively connected to opposite sides of the second end wall to define a second wrapping space, the second rib is inserted into the second wrapping space, the second frame is made of metal, and the second rib is inserted into the second wrapping space; The second rib includes a cover made of plastic material,
The first engaging part includes a first engaging part, a second engaging part, a plurality of first positioning members, and a plurality of second positioning members, and the first engaging part is connected to the first position by the plurality of first positioning members. The second engaging portion is positioned on the second frame by the plurality of second positioning members, and the first engaging portion and the second engaging portion are operated from the outside. at least one locking unit interconnected with the lock unit to prevent the cover from being opened with respect to the base;
each including a pivot member, a plurality of third positioning members, and a plurality of fourth positioning members, each third positioning member having one third connecting shaft and two third stop portions. the third connecting shaft passes through one end of the pivot member, the first rib and the two first side walls, and the two third stop portions extend through opposite ends of the third connecting shaft. each of the two third stop portions is closed by the pivot member and one of the two first side walls in the extending direction of the third connecting shaft, and each of the fourth The positioning member includes one fourth connecting shaft and two fourth stops, and the fourth connecting shaft connects the other end of the pivoting member, the second rib, and the two second side walls. the two fourth stop portions are connected to opposite ends of the fourth connection shaft, and the two fourth stop portions are respectively pivoted in the extending direction of the fourth connection shaft. a plurality of hinges closed by the member and one of the two second side walls;
Each of the first positioning members includes one first connecting shaft and two first stops;
The first connecting shaft passes through the first engaging portion, the first rib, and the two first side walls,
the two first stop portions are connected to opposite ends of the first connection shaft;
Each of the two first stop portions is closed by one of the first engaging portion and the two first side walls in the extending direction of the first connecting shaft,
each second positioning member includes one second connecting shaft and two second stops;
The second connecting shaft passes through the second engaging portion, the second rib, and the two second side walls,
the two second stop portions are connected to opposite ends of the second connection shaft;
The two second stop portions are each closed by one of the second engagement portion and the two second side walls in the extending direction of the second connection shaft.
toolbox. The first engaging portion includes a first base, a buckle, and a pull member, the second engaging portion includes a second base, and a fitting hole, and the first base includes a plurality of first bases. the second base body is coupled to the cover by the plurality of second positioning members, the pull member is pivotally mounted to the first base body, and the buckle is connected to the pull member. The buckle includes an annular body and a fitting part connected to each other, and the buckle includes an annular body and a fitting part connected to each other, and the fitting hole is recessed in the second base body. The tool box according to claim 1, wherein the fitting portion is fitted into the fitting hole when the body is mounted on the second base body. The main frame further includes a plurality of first walls and a plurality of second walls, one of the plurality of first walls and the plurality of second walls is provided with a plurality of protrusions, and the other is provided with a plurality of protrusions. are provided with a plurality of recesses, the adjacent first wall portion and the second wall portion are fitted into each other with the plurality of convex portions and the plurality of recesses, and one of the first wall portions has a plurality of recesses. The tool box according to claim 1, wherein two openings are provided through the tool box. Each of the convex portions includes a constriction portion and an enlarged end portion connected to the constriction portion, each of the concave portions includes a constriction port and an inner groove communicating with the constriction port, and each of the convex portions includes a constriction portion and an enlarged end portion connected to the constriction portion. 4. The tool box of claim 3, wherein the ends are pushed apart and passed through the apertures and are engaged in the internal grooves, each said aperture limiting one said aperture. The tool box according to claim 4, wherein a side flange is provided protrudingly on at least one side of opposing both sides of each of the enlarged ends. The main frame further includes a plurality of fastening units, each fastening unit including a bolt and a nut, one of the adjacent first wall part and the second wall part including a plurality of perforated holes, and the other one of the adjacent first wall part and the second wall part includes a plurality of perforated holes. a plurality of accommodation holes corresponding to the plurality of drilling holes; each of the accommodation holes accommodates the nut; each bolt is inserted through the drilling hole and into the accommodation hole, and is inserted into the nut; 4. The tool box according to claim 3, wherein the bolts and nuts of each of the fastening units are screwed together and clamp the adjacent first wall portion and the second wall portion to fix and connect them. A first recess is recessed on the side of the first engaging part facing the base, and the first side wall near the first engaging part protrudes into the first recess, and the second engaging part protrudes into the first recess. 2. The tool box according to claim 1, wherein a second recess is recessed in a side of the section facing the cover, and the second side wall near the second engaging part protrudes into the second recess. A protrusion is provided on one of the first end wall and the second end wall, and a groove is provided on the other, and the shape of the protrusion and the shape of the groove match each other, and 8. The protrusion according to any one of claims 1 to 7, wherein the protrusion extends to gradually contract, and when the cover and the base are combined with each other, the protrusion is fitted into the groove. toolbox. The first engaging part includes a first base, a buckle, and a pull member, the second engaging part includes a second base and a fitting hole, and the first base includes a plurality of first positioning members. the second base is connected to the cover by the plurality of second positioning members, the pull member is pivotally mounted to the first base, and the buckle is connected to and interlocks with the pull member. the fitting hole is recessed in the second substrate, the buckle includes an annular body and a fitting part connected to each other, and the annular body When attached to the second base, the fitting part is fitted into the fitting hole, and the main frame further includes a plurality of fastening units, each fastening unit including a bolt and a nut, and the main frame includes a bolt and a nut. One of the wall portion and the second wall portion includes a plurality of drilled holes, the other includes a plurality of accommodation holes corresponding to the plurality of drilled holes, each of the accommodation holes accommodates the nut, and each of the second wall portions includes a plurality of holes. The bolts are inserted through the perforated holes, inserted into the accommodation holes, and screwed onto the nuts, and the bolts and nuts of each fastening unit respectively connect the adjacent first wall portion and the second wall portion. The first engaging part is fixed and connected by clamping, and a first recess is provided on the side facing the base of the first engaging part, and the first side wall near the first engaging part is recessed in the first recess. A second recess is provided on the side of the second engaging portion facing the cover, and the second side wall near the second engaging portion protrudes into the second recess. A protrusion is provided on one of the first end wall and the second end wall, and a groove is provided on the other, and the shape of the protrusion and the shape of the groove match each other, and the protrusion extends so as to gradually contract, and when the cover and the base are combined with each other, the protrusions are fitted into the grooves, and the inner surfaces of the plurality of first walls and the plurality of second walls a peripheral wall is defined by an inner surface of the part, and at least one engagement groove is provided on each of opposing sides of the peripheral wall, and each of the opposing sides of the at least one storage box is inserted into the at least one engagement groove. A locking protrusion is provided on the tank wall of the at least one engagement groove, and a locking recess that can be locked with the locking protrusion is provided on each opposing side of the at least one storage box. an end of each of the bolts contacts a hole wall of the receiving hole in the axial direction, and each of the throttle ports includes a narrow portion and a wide portion connected to opposite sides of the narrow portion. , each of the enlarged ends is pushed apart and passed through the throttle opening and is engaged in the inner groove, each of the narrow width parts limits one of the throttle parts, and the main frame further includes a third wall part. two of the first side walls are inserted and connected to two opposing circumferential sides of the third wall, and two of the second side walls are inserted and connected to two other opposing circumferential sides of the third wall. each of the nuts is limited by abutting against a hole wall of the accommodation hole, and each of the accommodation holes includes a housing part that houses the nut, and an extension part that communicates with the housing part and is narrower than the housing part. , each of the bolts passes through the nut and extends into the extension part, the cover is provided with a handle, the fitting part is integrally connected to the annular body, and the fitting part is formed into a plate shape by stamping. It extends in a fan shape, the number of the plurality of first wall parts and the number of the plurality of first wall parts are two each, and a fitting groove is recessed in each of the two first wall parts. , the top surfaces of the two second walls and the groove bottoms of the fitting grooves are flush with each other, and the opposing sides of the mounting box are accommodated in the fitting grooves of the two first walls. , another opposite side of the mounting box is crimped to the top surface of the two second walls, and the annular surface is pressed by both the top surface of the mounting box and the top surface of the two first walls. is formed, the tool box further includes a plurality of support units, each of the support units includes a first support member and a second support member, one end of the first support member is connected to the first frame, 5. The second support member according to claim 4, wherein one end of the second support member is connected to the second frame, and the other end of the first support member and the other end of the second support member are pivotally connected to each other. toolbox.