Pull rod tool box

Abstract

The utility model discloses a pull rod tool box, which is characterized in that a pull rod device is arranged on one side of the tool box and comprises a cover plate and a pull rod; the cover plate is fixed on one side of the tool box through screws; the pull rod is positioned between the tool box and the cover plate; a mounting groove, a sliding strip and a first groove are arranged on one side of the cover plate; the pull rod comprises a handle, a bent part and a bottom plate; when the buckle is matched with the bottom plate, the upper edge of the bottom plate is located in the buckle, the handle is located in the handle groove, and the pull rod is fixed in the cover plate. When the pull rod needs to be pulled out, the buckle on the cover plate is separated from the upper edge of the bottom plate through external force, the pull rod is pulled out upwards relative to the cover plate, and when the blocking strip is attached to the upper portion of the long-strip-shaped through hole, the buckle is just buckled into the concave hole, and the pull rod is fixed to the cover plate. The pull rod is simple in structure and long in service life due to the fact that the pull rod is mechanically telescopic.

Description

Technical Field

[0001] The utility model relates to a tool box, in particular to a pull rod tool box which can be freely combined according to functions. Background Art

[0002] Sometimes professional equipment needs to be placed in a dedicated tool box, which can prevent the equipment or instruments from being damaged during transportation or carrying. With the development and changes of the market, our company has been committed to the research and development of various tool boxes, optimizing the structure of the tool box to adapt to different environments or meet different needs of everyone.

[0003] Just like the current suitcases with trolleys, especially those that can be boarded, due to size requirements, the length of the trolley is generally fixed. For tall people, the trolley will be shorter, and the comfort of use will decrease. The trolleys commonly used in daily life are generally pressed at the handle to shrink the ball on the trolley, detach it from the box body, and pull the trolley out. As for toolboxes, due to their certain functionality, the price will be more expensive. If the trolley is damaged, the entire toolbox may no longer be used. Therefore, the company applied for a trolley safety box in 2020, and also applied for utility model and utility model patents. It adopts a mechanical type, but during use, customers reported that there is a certain looseness between the trolley and the cover plate. Although it does not affect the use, the experience is reduced.

[0004] Another thing is that the internal structure of the toolbox is basically fixed, which will affect the usability of the toolbox. Summary of the invention

[0005] Based on the above description, the utility model proposes a pull rod tool box, in which the pull rod device is fixed to the outside of the tool box body by screws; a detachable angle wheel is installed at the bottom of the tool box; if the pull rod device or the angle wheel is damaged, it can be replaced separately without affecting the normal use of the box body; the interior of the tool box can be equipped with various components according to actual needs, such as anti-collision sponge and various tool inserts, so as to improve the use function of the tool box.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A pull rod tool box comprises a cover body and a box body, and a pull rod device on the outside of the box body; the pull rod device is fixed to one side of the tool box by screws; a handle groove is opened on one side of the tool box; wherein,

[0008] The pull rod device comprises a cover plate and a pull rod; the cover plate is fixed to one side of the tool box by screws; the pull rod is located between the tool box and the cover plate;

[0009] A mounting groove, a slide bar and a first groove are provided on one side of the cover plate; the mounting groove is located at the left and right edges of the cover plate, and a plurality of mounting column holes are fixed in the mounting groove; three mounting column holes are fixed on the bottom of the cover plate; a slide bar is fixed on each side of the mounting groove, and a first groove is formed between the slide bars, and the first groove is located at the center of the cover plate; a gap is opened between the upper part of the first groove and the slide bar, and the gap is parallel to the slide bar, so that a movable sheet is formed on the upper part of the first groove, and two buckles are fixed on the upper edge of the movable sheet, and convex ribs are fixed between the buckles; a blocking block is fixed below the buckle;

[0010] The width of the pull rod is smaller than the width of the cover plate; the pull rod includes a handle, a bending portion and a bottom plate, which are integrally formed; the bending portion is connected to the bottom plate; the handle can be placed in the handle groove;

[0011] A long through hole is opened in the middle of the bottom plate, and the bottom of the long through hole is arc-shaped, which is the same shape as the blocking block, and the two can fit together when they are in contact; second grooves are opened on both sides of the long through hole, and the second grooves cooperate with the slide bar, and the slide bar can move up and down in the second groove; a pair of concave holes are opened correspondingly on the side of the long through hole; a U-shaped gap is opened at the lower part of the second groove, so that the lower part of the second groove forms an elastic block, and the lower part of the elastic block is provided with an arc-shaped protrusion;

[0012] When the buckle matches with the bottom plate in the pull rod, and the upper edge of the bottom plate is located in the buckle, the handle is in the handle groove, and the pull rod is fixed in the cover plate;

[0013] When the pull rod needs to be pulled out, use external force to disengage the buckle on the cover from the upper edge of the bottom plate in the pull rod, and pull the pull rod upward relative to the cover. When the blocking strip fits with the upper part of the long through hole, the buckle fits into the concave hole to fix the pull rod on the cover.

[0014] Furthermore, a stop bar is fixed on the upper part of the slide bar.

[0015] Furthermore, the blocking block is U-shaped, with a blocking reinforcement rib in the middle.

[0016] Furthermore, the mounting post hole is circular.

[0017] Furthermore, the movable piece is provided with a U-shaped reinforcing rib.

[0018] Furthermore, a locking block is provided at the bottom of the slide bar, and the locking block includes a protrusion and a third groove; the connection between the protrusion and the slide bar is arc-shaped; the third groove is located below the protrusion; and the third groove can cooperate with the arc-shaped protrusion on the pull rod.

[0019] Furthermore, the toolbox has at least two wheel grooves, in which angle wheels are installed; the angle wheel includes a roller seat and a roller; the roller is installed in the roller seat and connected by a knurled shaft, and the roller can rotate in the roller seat; the roller seat includes a groove body and a mounting body; the two are integrally formed; the roller is installed in the groove body; a T-shaped groove is provided on one side of the groove body; a T-shaped protrusion is fixed on one side of the wheel groove; the T-shaped protrusion can slide into the T-shaped groove to install the angle wheel in the wheel groove; the mounting body is located on the outside of the groove body, and the mounting body and the toolbox are fixed by nuts to fix the angle wheel in the wheel groove of the toolbox; the roller has grooves evenly provided on both sides of the edge, and the rest is a smooth surface.

[0020] Furthermore, a sponge is installed in the toolbox; the sponge is fixed to the box body or cover body of the toolbox through a foam fixing adapter; the foam fixing adapter includes a sleeve column and a column cap, which are integrally formed; a plurality of column feet are opened on the sleeve column, and a certain gap is left between the column feet; the column cap is round and has a hole in the middle; the foam fixing adapter cooperates with the mounting column hole in the box body; specifically, the sponge passes through the mounting column hole and fits on the surface of the box body, the foam fixing adapter is sleeved on the outside of the mounting column hole, and both are fixed by screws.

[0021] Furthermore, a tool insert is installed in the toolbox; the tool insert includes at least a first insert, which has holes around it and is fixed to the inner side of the box by self-tapping screws; a first strap and a second strap are fixed to the two sides of the first insert respectively; one end of the first strap is fixed to the first insert, and the other end is fixed to a button; one end of the second strap is fixed to the first insert, and the other end is fixed to a button.

[0022] A second plug-in sheet is installed on the first plug-in sheet; the lower edge of the second plug-in sheet is fixed to the lower edge of the first plug-in sheet; the first strap on the first plug-in sheet cooperates with the button on the second plug-in sheet to fix the second plug-in sheet on the first plug-in sheet; a tool strip is also sewn on the second plug-in sheet.

[0023] Furthermore, an inner liner and a removable third tool insert are installed in the box; convex strips are evenly arranged on the inner wall of the inner liner; a cross knob is provided on the inner liner; one side of the third tool insert is installed on the buckle, and the buckle is installed on the inner wall of the box; a mounting hole is opened on the other side of the third tool insert, and the mounting hole cooperates with the cross knob on the inner liner to achieve the fixing of the third tool insert on the inner liner.

[0024] The buckle includes a base and a clamping piece, and the clamping piece can cooperate with the base; the base includes a base plate, a partition plate, and claws; screw holes are opened on both sides of the base plate, and the base is fixed to the box body by screws; three partition plates are evenly fixed on the base plate, and a pair of claws are installed between the partition plates respectively; the claws are arc-shaped, distributed up and down and fixed on the base plate accordingly, so that a cylindrical space is formed between the claws; the middle of the partition plate is arc-shaped, so that the partition plate and the claws form a cylindrical space; claw reinforcement ribs are fixed on the claws; the clamping piece includes a clamping shaft and a mounting bracket; the clamping shaft is cylindrical and fixed on the mounting bracket; the mounting bracket is U-shaped, with a hole opened at one end, and the third tool box piece is installed on the mounting bracket by screws; the third tool insert is installed on the box body through the cooperation of the clamping piece and the base.

[0025] The pull rod of the utility model is mainly for tool boxes that can be taken on board. Since there are size regulations for the carry-on boxes, for some tall people, when using the pull rod, the pull rod will be shorter, which reduces the comfort of use. The pull rod in the utility model includes a handle, a bending portion and a bottom plate. The bending portion allows the length of the pull rod to be greater than that of a conventional straight-line pull rod. The extension and retraction of the pull rod is mechanical, and the pull rod and the cover plate are fixed by a buckle, so the service life is long.

[0026] The use environment of the tool box is sometimes quite special, and the damage rate of the corner wheels may be high. The corner wheels in the utility model are detachable, and if they are broken, they are easy to replace, thereby extending the service life of the tool box.

[0027] The utility model can also be installed with tool inserts or sponges according to the actual functions required. Due to the material properties of the sponge, if ordinary screws are used to fix the sponge on the box body, the sponge at the screw interface is easy to crack over time, causing the sponge to separate from the box body. The use of the foam fixing adapter in the utility model can significantly extend the service life of the sponge.

[0028] The utility model can also install the inner shell and the third tool insert as needed; the inner shell is placed in the box body and matched with the tool insert. A pair of card holders are installed on the inner wall of the box body, and a pair of clamps are installed on one side of the third tool insert. The clamps are buckled into the card holders to install the third tool insert in the box body; a hole is opened on the third tool insert, and the cross knob on the inner shell passes through the hole. The cross knob is turned to fix the third tool insert on the inner shell; if the tool piece does not need to be installed, the clamps can be removed from the card holder, and the tool box can be used to store other instruments or other tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the utility model;

[0030] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0031] Figure 3 It is a schematic diagram of the exploded structure of the pull rod device in the utility model;

[0032] Figure 4 yes Figure 3 The structural diagram of the middle A part;

[0033] Figure 5 yes Figure 3 The structural diagram of the middle B part;

[0034] Figure 6 It is another structural schematic diagram of the slide bar in the utility model;

[0035] Figure 7 This is a schematic diagram of the structure of the angle wheel in the utility model;

[0036] Figure 8 The utility model is a structural schematic diagram of the first plug;

[0037] Fig. 9 It is a structural schematic diagram of the second insert in the utility model;

[0038] Fig.10 It is a structural schematic diagram of the foam fixing adapter in the utility model;

[0039] Fig.11 It is a structural schematic diagram of the pull rod in the utility model;

[0040] Fig.12 It is a structural schematic diagram of the inner liner in the utility model;

[0041] Fig.13 It is a structural schematic diagram of the buckle and the third tool insert in the utility model;

[0042] Fig.14 It is a structural schematic diagram of the buckle in the utility model. DETAILED DESCRIPTION

[0043] The technical solution of the utility model is described in detail below. The embodiment of the utility model is only used to illustrate the specific structure, and the scale of the structure is not limited by the embodiment.

[0044] See also Figures 1 to 11 The pull rod tool box comprises a tool box 1 and a pull rod device 2; the pull rod device 2 is fixed to the outer side of the tool box 1 by screws; a handle groove 11 is opened on one side of the tool box 1, and a detachable angle wheel 3 is installed at the bottom of the tool box 1.

[0045] The pull rod device 2 includes a cover plate 22 and a pull rod 21 ; the cover plate 22 is fixed to one side of the tool box 1 by screws; and the pull rod 21 is located between the tool box 1 and the cover plate 22 .

[0046] One side of the cover plate 22 is provided with a mounting groove 221, a slide bar 223 and a first groove 224; the mounting groove 221 is located at the left and right edges of the cover plate 22, and a plurality of mounting column holes 222 are fixed in the mounting groove 221; the mounting column holes are circular. Three mounting column holes 222 are fixed at the bottom of the cover plate 22; a slide bar 223 is fixed on each side of the mounting groove 221, and the slide bar 223 is outwardly convex, so that a first groove 224 is formed between the two slide bars 223, and the first groove 224 is located at the center of the cover plate 22; a gap 229 is opened between the upper part of the first groove 224 and the slide bar, and the gap 229 is parallel to the slide bar 223, so that the upper part of the first groove 224 forms a movable sheet 230, and a U-shaped reinforcing rib 232 is provided on the movable sheet. Two buckles 225 are fixed at the upper edge of the movable sheet 230, and convex ribs 226 are fixed between the buckles 225; when the buckles on the movable sheet need to be detached from the pull rod, the fingers apply force on the convex rib 226 to increase friction and prevent slipping; a blocking block 227 is fixed below the buckle 225, the blocking block 227 is U-shaped, and a blocking reinforcement rib 228 is fixed on it; a blocking bar 231 is fixed to the upper part of the slide bar 223.

[0047] The width of the pull rod 21 is smaller than the width of the cover plate 22; when the cover plate 22 is fixed to the tool box 1, the pull rod 21 is located inside the cover plate 22; the pull rod 21 includes a handle 211, a bent portion 212 and a bottom plate 213, which are integrally formed; the bent portion 212 is connected to the bottom plate 213; the handle 211 can be placed in the handle groove 11;

[0048] A long through hole 215 is formed in the middle of the bottom plate 213. The bottom of the long through hole 215 is arc-shaped, which is the same shape as the blocking block 227. When the two are in contact, they can fit together. Second grooves 214 are formed on both sides of the long through hole 215. The second groove 214 cooperates with the slide bar 223, and the slide bar 223 can move up and down in the second groove 214. A pair of concave holes 216 are formed on the side of the long through hole 215. A U-shaped gap 217 is formed at the lower part of the second groove 214, so that an elastic block 218 is formed at the lower part of the second groove 214, and an arc-shaped protrusion 219 is provided at the lower part of the elastic block 218.

[0049] When the buckle 225 is matched with the bottom plate 214 in the pull rod, and the upper edge of the bottom plate is located in the buckle 225, the handle 211 is in the handle groove 11, and the entire bottom plate of the pull rod 21 is in the cover plate 22;

[0050] When the pull rod needs to be pulled out, use external force to pry the movable piece to separate the buckle from the upper edge of the bottom plate of the pull rod, and pull the pull rod upward relative to the cover plate. When the blocking strip fits with the upper part of the long through hole, the buckle fits into the concave hole to fix the pull rod to the cover plate.

[0051] Since the pull rod adopts a mechanical method, in order to make the pull rod and the cover plate cooperate better, a locking block 232 is opened at the bottom of the slide bar 223, and the locking block 232 includes a protrusion 233 and a third groove 234; the connection between the protrusion 233 and the slide bar is arc-shaped; the third groove 234 is located below the protrusion 233; the third groove 234 can cooperate with the arc-shaped protrusion 219 on the pull rod.

[0052] At least two wheel grooves 4 are provided on the toolbox 1, and an angle wheel 3 is installed in the wheel groove 4; the angle wheel 3 includes a roller seat 32 and a roller 31; the roller 31 is installed in the roller seat 32, and is connected by a knurled shaft, so that the roller 31 can rotate in the roller seat 32; the roller seat 32 includes a groove body 33 and a mounting body 34; the two are integrally formed; the roller 31 is installed in the groove body 33; a T-shaped slide groove 35 is provided on one side of the groove body 33; a T-shaped protrusion 41 is fixed on one side of the wheel groove 4; the T-shaped protrusion 41 can slide into the T-shaped slide groove 35 to install the angle wheel 3 in the wheel groove 4; the mounting body 34 is located on the outside of the groove body 33, and the mounting body 34 is fixed to the toolbox 1 by a nut, so that the angle wheel 3 is fixed in the wheel groove 4 of the toolbox 1; grooves are evenly provided on both sides of the edge of the roller 31, and the rest is a smooth surface, so that when the roller rolls, no particles such as stones will be stuck in the roller.

[0053] Sponge can also be installed in the toolbox as needed to achieve a shockproof effect; the sponge is fixed to the box body or cover body of the toolbox 1 through a foam fixing adapter 5; the foam fixing adapter 5 includes a sleeve column 52 and a column cap 51, which are integrally formed; a plurality of column feet 53 are provided on the sleeve column 52, and a certain gap is provided between the column feet 53; the column cap 51 is circular and has a hole in the middle; the foam fixing adapter 5 cooperates with the mounting column hole in the box body; specifically, the sponge passes through the mounting column hole and fits onto the surface of the box body, and the foam fixing adapter 5 is sleeved on the outside of the mounting column hole 222, and both are fixed by screws.

[0054] Tool inserts can also be installed in the tool box as needed; the tool inserts include at least a first insert 6, which has holes around it and is fixed to the inside of the box by self-tapping screws; a first strap 61 and a second strap 62 are fixed to the two sides of the first insert 6 respectively; one end of the first strap 62 is fixedly sewn on the first insert, and the other end is fixed with a button 63; one end of the second strap 62 is fixed on the first insert 6, and the other end is fixed with a button 63.

[0055] The second plug-in piece 7 can be installed according to actual needs, and the lower edge of the second plug-in piece 7 is fixed to the lower edge of the first plug-in piece 6; the button 63 on the first strap 61 on the first plug-in piece 6 cooperates with the button 71 on the second plug-in piece 7 to fix the second plug-in piece 7 on the first plug-in piece 6. At the same time, a tool strip 72 is sewn on the second plug-in piece 7, and various tools can be inserted.

[0056] like Fig.12 ,13 As shown in Figures 14 and 15, the utility model can install the inner liner 12 and the detachable third tool insert 13 in the box body according to the function of the tool box; the inner wall of the inner liner 12 is evenly provided with convex strips 121; the inner liner is provided with a cross knob 122; one side of the third tool insert 13 is installed on the buckle 14, and the buckle 14 is installed on the inner wall of the box body; the other side of the third tool insert 13 is provided with a mounting hole 131, and the mounting hole 131 cooperates with the cross knob 122 on the inner liner 12 to achieve the third tool insert 13 fixed on the inner liner 12. The third tool insert 13 can be sewn with pockets and elastic bands of required specifications according to actual needs.

[0057] The buckle 14 includes a base 141 and a clamping member 142, and the clamping member 142 can cooperate with the base 141; the base 141 includes a bottom plate 143, a partition plate 144, and a clamping claw 145; screw holes 146 are opened on both sides of the bottom plate 143, and the base 141 is fixed to the box body by screws; three partition plates 144 are evenly fixed on the bottom plate 143, and a pair of clamping claws 145 are respectively installed between the partition plates 144; the clamping claws 145 are arc-shaped, distributed up and down and correspondingly fixed on the bottom plate 143, so that the clamping claws 145 are formed The partition plate 144 is arc-shaped in the middle, so that the partition plate 144 and the claw 145 form a cylindrical space; the claw 145 is fixed with a claw reinforcement rib 147; the clamping member 142 includes a clamping shaft 148 and a mounting bracket 149; the clamping shaft 148 is cylindrical and fixed on the mounting bracket 149; the mounting bracket 149 is U-shaped, with a hole at one end, and the third tool insert is installed on the mounting bracket 149 by screws; the third tool insert is installed on the box body by the cooperation of the clamping member 142 and the holder 141.

Claims

1. A pull rod tool box, the tool box comprises a cover body and a box body, characterized in that A pull rod device is installed on the outside of the box body; the pull rod device is fixed to one side of the tool box by screws; a handle groove is opened on one side of the tool box; wherein, The pull rod device comprises a cover plate and a pull rod; the cover plate is fixed to one side of the tool box by screws; the pull rod is located between the tool box and the cover plate; The cover plate is provided with a mounting groove, a slide bar and a first groove on one side; the mounting groove is located at the left and right edges of the cover plate, and a plurality of mounting column holes are fixed in the mounting groove; three mounting column holes are fixed at the bottom of the cover plate; a slide bar is fixed on each side of the mounting groove, and a first groove is formed between the slide bars, and the first groove is located at the center of the cover plate; a gap is opened between the upper part of the first groove and the slide bar, and the gap is parallel to the slide bar, so that a movable sheet is formed on the upper part of the first groove, and two buckles are fixed at the upper edge of the movable sheet, and convex ribs are fixed between the buckles; a blocking block is fixed below the buckle; the blocking block is U-shaped, and a blocking reinforcement rib is provided in the middle; The pull rod has a width smaller than that of the cover plate; it includes a handle, a bending portion and a bottom plate, which are integrally formed; the bending portion is connected to the bottom plate; the handle can be placed in the handle groove; The bottom plate has a long through hole in the middle, the bottom of the long through hole is arc-shaped, the same shape as the blocking block, and the two can fit together when they are in contact; second grooves are opened on both sides of the long through hole, the second grooves cooperate with the slide bar, and the slide bar can move up and down in the second grooves; a pair of concave holes are opened on the side surface of the lower part of the long through hole correspondingly; a U-shaped gap is opened at the lower part of the second groove, so that the lower part of the second groove forms an elastic block, and the lower part of the elastic block is provided with an arc-shaped protrusion; When the buckle is matched with the bottom plate in the pull rod, the upper edge of the bottom plate is located in the buckle, the handle is in the handle groove, and the entire bottom plate of the pull rod is in the cover plate; When the pull rod needs to be pulled out, use external force to bend the movable piece outward, the buckle on the cover plate disengages from the upper edge of the bottom plate of the pull rod, and the pull rod is pulled upward relative to the cover plate. When the blocking strip fits with the upper part of the long through hole, the buckle just fits into the concave hole to fix the pull rod on the cover plate.

2. The drawbar tool box according to claim 1, characterized in that A blocking bar is fixed on the upper part of the slide bar.

3. The drawbar tool box according to claim 1, characterized in that The movable sheet is provided with U-shaped reinforcing ribs.

4. The drawbar tool box according to claim 1, characterized in that A locking block is provided at the bottom of the slide bar, and the locking block includes a protrusion and a third groove; the connection between the protrusion and the slide bar is arc-shaped; the third groove is located below the protrusion; the third groove can cooperate with the arc-shaped protrusion on the pull rod.

5. The drawbar tool box according to claim 1, characterized in that The toolbox is provided with at least two wheel grooves, in which angle wheels are installed; the angle wheels include a roller seat and a roller; the roller is installed in the roller seat and connected by a knurled shaft, and the roller can rotate in the roller seat; the roller seat includes a groove body and a mounting body; the two are integrally formed; the roller is installed in the groove body; a T-shaped groove is provided on one side of the groove body; a T-shaped protrusion is fixed on one side of the wheel groove; the T-shaped protrusion can slide into the T-shaped groove to install the angle wheel in the wheel groove; the mounting body is located on the outside of the groove body, and the mounting body and the toolbox are fixed by nuts to fix the angle wheel in the wheel groove of the toolbox; the roller has grooves evenly provided on both sides of the edge, and the rest is a smooth surface.

6. The drawbar tool box according to claim 1, characterized in that The tool box is equipped with a sponge, which is fixed to the box body or cover of the tool box through a foam fixing adapter. The foam fixing adapter includes a sleeve column and a column cap, which are integrally formed. The sleeve column is provided with a plurality of column feet, and there is a certain gap between the column feet. The column cap is round and has a hole in the middle. The foam fixing adapter cooperates with the mounting column hole in the box; specifically, the sponge passes through the mounting column hole and fits on the surface of the box, the foam fixing adapter is sleeved on the outside of the mounting column hole, and then both are fixed by screws.

7. The drawbar tool box according to claim 1, characterized in that A tool insert is installed in the tool box; the tool insert includes at least a first insert, which has holes around it and is fixed to the inner side of the box by self-tapping screws; a first strap and a second strap are fixed on both sides of the first insert respectively; one end of the first strap is fixed to the first insert, and the other end is fixed with a button; one end of the second strap is fixed to the first insert, and the other end is fixed with a button.

8. The drawbar tool box according to claim 7, characterized in that A second plug-in sheet is installed on the first plug-in sheet; the lower edge of the second plug-in sheet is fixed to the lower edge of the first plug-in sheet; the first strap on the first plug-in sheet cooperates with the button on the second plug-in sheet to fix the second plug-in sheet on the first plug-in sheet; a tool strip is also sewn on the second plug-in sheet.

9. The drawbar tool box according to claim 1, characterized in that An inner shell and a third tool insert are installed in the box; convex strips are evenly arranged on the inner wall of the inner shell; a cross knob is arranged on the inner shell; one side of the third tool insert is installed on the buckle, and the buckle is installed on the inner wall of the box; a mounting hole is opened on the other side of the third tool insert, and the mounting hole cooperates with the cross knob on the inner shell to fix the third tool insert on the inner shell.

10. The drawbar tool box according to claim 9, characterized in that The buckle includes a base and a clamping piece, and the clamping piece can cooperate with the base; the base includes a base plate, a partition plate, and claws; screw holes are provided on both sides of the base plate, and the base is fixed to the box body by screws; three partition plates are evenly fixed on the base plate, and a pair of claws are respectively installed between the partition plates; the claws are arc-shaped, distributed up and down and fixed on the base plate correspondingly, so that a cylindrical space is formed between the claws; the middle of the partition plate is arc-shaped, so that the partition plate and the claws form a cylindrical space; claw reinforcement ribs are fixed on the claws; the clamping piece includes a clamping shaft and a mounting bracket; the clamping shaft is cylindrical and fixed on the mounting bracket; the mounting bracket is U-shaped, with a hole at one end, and the third tool box piece is mounted on the mounting bracket by screws; the third tool insert is mounted on the box body through the cooperation of the clamping piece and the base.

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