Tool box

Abstract

The utility model discloses a tool box which comprises a box body. A walking assembly; the tool box further comprises a pull rod device connected to the box body, and the pull rod device comprises a protective cover assembly and a pull rod. The first connecting assembly is configured to be matched with the pull rod device, the first connecting assembly comprises a first operating piece, and the first operating piece can move relative to the box body; in the moving process of the first operating part, the first operating part at least has a first state and a second state, when the first operating part is in the first state, the protective cover assembly is connected with the box body, the pull rod can move relative to the protective cover assembly, and when the first operating part is in the second state, the pull rod is configured to be capable of being separated from the protective cover assembly; wherein the box body and the wheels are provided with at least three supporting points relative to the ground, the plane where the three supporting points are located is defined as a supporting plane, and when the pull rod is separated from the protective cover assembly, the distance between the first operation piece and the supporting plane is larger than or equal to 430 mm and smaller than or equal to 500 mm in the vertical direction.

Description

Technical Field

[0001] The present application relates to a toolbox system, and in particular to a toolbox. Background Art

[0002] A hand-push toolbox in the related art. When a user goes to a workplace to work, he generally needs to carry tools to be used. In order to facilitate the user to carry and transport the above tools, the user generally uses a toolbox to store the above tools. The charger, battery pack, tool accessories, tools, etc. can all be placed in the toolbox. However, when the user transports the toolbox from the storage place to the workplace, it is often necessary to use a means of transportation to transport the toolbox. However, the toolboxes currently on the market have a certain height in the up and down directions. Therefore, in a small pickup truck, the toolbox cannot be placed normally, and the toolbox often needs to be tilted and placed, which is inconvenient for users to use.

[0003] This section provides background information related to the present application which is not necessarily prior art. Utility Model Content

[0004] One object of the present application is to solve or at least alleviate a part or all of the above problems. To this end, one object of the present application is to provide a tool box that can facilitate users to remove or install the pull rod from the shield assembly.

[0005] To achieve the above objectives, the present application adopts the following technical solution: a toolbox, comprising: a box body, side walls and an upper cover extending substantially in the vertical direction; a walking assembly mounted on the box body, the walking assembly comprising wheels capable of moving relative to the ground; the toolbox further comprising a pull rod device connected to the box body, the pull rod device comprising a shield assembly and a pull rod; a first connecting assembly configured to cooperate with the pull rod device, the first connecting assembly comprising a first operating member capable of moving relative to the box body; during movement of the first operating member, the first operating member has at least a first state and a second state, when the first operating member is in the first state, the shield assembly is connected to the box body, the pull rod can move relative to the shield assembly without separating, and when the first operating member is in the second state, the pull rod is configured to separate from the shield assembly; wherein the box body and the wheels have at least three support points relative to the ground, the plane on which the three support points lie being defined as a support plane, and when the pull rod is separated from the shield assembly, a distance from the first operating member to the support plane in the vertical direction is greater than or equal to 430 mm and less than or equal to 500 mm.

[0006] In some embodiments, a first adapter that can cooperate with the first operating member is connected to or formed on the pull rod. When the first operating member is in the first state, the first operating member can abut against the first adapter, and the pull rod can drive the shield assembly to move relative to the ground.

[0007] In some embodiments, a first adapter portion is connected to or formed on the shield assembly, and the first operating member moves relative to the box body into the first adapter portion, thereby switching the first operating member to the first state.

[0008] In some embodiments, the first connecting assembly further includes a second stopper configured to cooperate with the first operating member to keep the first operating member in the first state.

[0009] In some embodiments, the first operating member rotates relative to the box body into the first adapter portion, and then engages with the first adapter member.

[0010] In some embodiments, the second stop member is rotationally connected to the first operating member. During the process of the first operating member switching from the second state to the first state, the second stop member contacts the box body and drives the first operating member to rotate toward the direction close to the first adapter part until the first operating member is engaged with the first adapter part.

[0011] In some embodiments, the second stopper is connected to or formed on the first operating member. After the first operating member is switched to the first state, the second stopper can abut against the box body to prevent the first operating member from being separated from the first adapter.

[0012] In some embodiments, the toolbox also includes a locking assembly for releasing and locking the pull rod, the locking assembly includes a first transmission member that reciprocates along a first direction and a third transmission member that can be driven to move by the first transmission member. During the movement of the first transmission member, the first transmission member has an unlocked position and a linkage position, as well as an intermediate position arranged between the unlocked position and the linkage position.

[0013] In some embodiments, when the first operating member is in the first state, the first transmission member can switch between the linkage position and the intermediate position; when the first operating member is in the second state, the first transmission member can switch from the linkage position to the unlocked position.

[0014] In some embodiments, the first operating member includes a stop portion, and when the first operating member is in the first state,

[0015] During the process of the first transmission member moving forward along the first direction, the first transmission member abuts against the stop member, thereby preventing the first transmission member from moving forward and keeping the first transmission member in the middle position.

[0016] The benefit of the present application is that: the present application provides a tool box that facilitates users to remove or install the pull rod from the shield assembly through the structural setting of the first connecting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of a tool box according to an embodiment of the present application;

[0018] Figure 2 yes Figure 1 a plan view of the tool box shown, wherein the first operating member is in a first state;

[0019] Figure 3 yes Figure 2 A cross-sectional view of the toolbox shown along the AA direction;

[0020] Figure 4 yes Figure 1 A perspective view of the tool box is shown with the drawbar separated from the shield assembly, wherein the first operating member is in the second state.

[0021] Figure 5 yes Figure 3 An enlarged view of a section shown;

[0022] Figure 6 yes Figure 1 a partial cross-sectional view of a first component of the illustrated tool box;

[0023] Figure 7 yes Figure 6 An enlarged view of a portion of the cross-sectional view shown;

[0024] Figure 8 yes Figure 1 A partial cross-sectional view of some of the structures in the tool box;

[0025] Figure 9 yes Figure 8 a partial enlarged view of the cross-sectional view of the portion shown;

[0026] Figure 10 is a perspective view of a toolbox according to another embodiment of the present application, wherein the first operating member is in a first state;

[0027] Figure 11 yes Figure 10 a plan view of the toolbox shown;

[0028] Figure 12 yes Figure 11 A cross-sectional view of the tool box shown along direction BB;

[0029] Figure 13 yes Figure 10 Exploded view of the toolbox section shown;

[0030] Figure 14 yes Figure 13 a perspective view of a first operating member in the tool box;

[0031] Figure 15 yes Figure 12 a partial enlarged view of the cross-sectional view shown;

[0032] Figure 16 yes Figure 13 A partial enlarged view of the exploded view shown;

[0033] Figure 17 is a perspective view of a toolbox according to another embodiment of the present application, wherein the first operating member is in a first state;

[0034] Figure 18 yes Figure 17 A partially exploded view of the toolbox shown;

[0035] Figure 19 yes Figure 17 A partial cross-sectional view of a portion of the structure in the tool box shown, at this time, the first operating member is in the first state and the first transmission member is in the middle position;

[0036] Figure 20 yes Figure 17 A partial cross-sectional view of a portion of the structure in the tool box shown, when the first operating member is in the second state and the first transmission member is in the unlocked position;

[0037] Figure 21 yes Figure 19 An enlarged view of a portion of the structure of the partial cross-sectional view shown;

[0038] Figure 22 yes Figure 20 An enlarged view of part of the structure of the partial cross-sectional view shown. DETAILED DESCRIPTION

[0039] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0040] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0041] In this application, the term "and / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0042] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0043] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of the specific value, the tolerance caused by manufacturing, assembly, and use associated with the specific value, etc. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular) may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) based on the indicated angle.

[0044] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0045] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0046] like Figure 1The figure shows a toolbox in a toolbox system, which can be used to store items such as accessories, tools, charging devices, power devices, lighting devices, cooling devices, heating devices, etc. It should be noted that the storage of items in this application is not limited to storing items inside the toolbox, but also includes securing items outside the toolbox and connecting them to the toolbox, which is also referred to as storing items in the toolbox.

[0047] In order to clearly illustrate the technical solution of this application, the following definitions are made: Figure 1 It should be noted that, unless otherwise specified, the up, down, front, back, left and right mentioned below all refer to the toolbox. Figure 1 Shown is the state when at rest.

[0048] like Figures 1 to 5 As shown, the toolbox 100 includes a housing 10, a pull rod assembly 20, a travel assembly 40, and an interlocking assembly 50. The housing 10 is the primary component of the toolbox 100. The storage box includes sidewalls 11 extending generally in the vertical direction, and an upper cover 14 and a lower bottom wall 15 disposed opposite each other. The sidewalls 11, upper cover 14, and lower bottom wall 15 are connected to form a storage cavity within which a user can store or retrieve items. The toolbox 100 system can also include multiple different types of toolboxes 100. The interlocking assembly 50 is used to lock the toolboxes 100 together.

[0049] Toolbox 100 Figure 1 When the tool box 100 is placed on the ground at rest, the support points between the wheels 41 and the ground, and the support points between the tool box 100 and the ground, comprise at least three support points, wherein the plane on which these three support points lie is defined as the support plane P. It should be noted that the above-mentioned ground may also refer to other contact surfaces for placing the tool box 100, and is not limited to the earth.

[0050] The pull rod device 20 is connected to the toolbox 100. The pull rod device 20 is basically arranged on the rear side of the toolbox 100. The pull rod device 20 has a pull rod 22 for the user to hold, and the pull rod 22 can move relative to the toolbox 100. The walking assembly 40 is connected to the toolbox 100. The walking assembly 40 includes one or more wheels 41. The walking assembly 40 can move the toolbox 100 relative to the ground. The user can pull or push the wheels 41 relative to the ground by holding the pull rod 22, thereby driving the toolbox 100 to move. Specifically, the pull rod device 20 includes a shield assembly 21, a pull rod 22 and a locking assembly 23. The pull rod 22 is at least partially arranged in the shield assembly 21. The shield assembly 21 is used to guide the movement of the pull rod 22, that is, the pull rod 22 can move in the shield assembly 21. The shield assembly 21 is at least partially installed in the box body 10. The locking assembly 23 is connected to the shield assembly 21.

[0051] The pull rod 22 includes a pair of opposing connecting rods, specifically a first connecting rod 222 and a second connecting rod 223, and a gripping rod 224 connecting the two connecting rods. The two connecting rods are arranged substantially parallel and spaced apart, with the upper ends of the connecting rods connected to the gripping rod 224. The gripping rod 224 is at least partially covered by a sleeve to improve the grip of the handle. The sleeve can be made of, for example, rubber, wood, plastic, or any other material that improves grip.

[0052] The shield assembly 21 includes a first rail 212, a second rail 213, and a shield assembly 214 connecting the first rail 212 and the second rail 213. In the left-right direction, the two rails are basically symmetrically arranged about a bisecting plane A. The shield assembly 214 is arranged at the upper ends of the first rail 212 and the second rail 213. The first rail 212 and the second rail 213 of the shield assembly 21 are used to guide the first connecting rod 222 and the second connecting rod 223, respectively. Upper and lower ends of the rails are formed with upper and lower through holes for the connecting rod to pass through. The connecting rod can pass through the rails, that is, it can be understood that the lower end of the pull rod 22 can pass through the lower through hole of the rail. Of course, in some other embodiments, the lower end of the pull rod 22 may not pass through the lower through hole of the rail. The rear side of the box body 10 of the toolbox 100 protrudes backward to form two hollow parts, namely the first hollow part 16 and the second hollow part 17. The two hollow parts penetrate up and down in the up and down directions, and the first track 212 and the second track 213 are arranged in the corresponding first hollow part 16 and the second hollow part 17.

[0053] The toolbox 100 also includes a first connecting component 30, which can cooperate with the pull rod device 20. The first connecting component 30 includes a first operating member 33, which can move relative to the box body 10. During the movement of the first operating member 33, the first operating member 33 has at least a first state and a second state. When the first operating member 33 is in the first state, the guard assembly 21 is connected to the box body 10, and the pull rod 22 can move in the guard assembly 21. When the first operating member 33 is in the second state, the pull rod 22 is configured to be separable from the guard assembly 21, that is, the pull rod 22 can be detached from the guard assembly 21. When the user uses the toolbox 100, it is inevitable that the user will need to move or store the toolbox 100. Through the above setting, the pull rod 22 is set to two states. When the user needs to use the pull rod 22, by switching the state of the first operating member 33, that is, switching the first operating member 33 to the first state, the user can move the toolbox 100 by pushing / pulling the pull rod 22. When the user needs to store the toolbox 100 or move the toolbox 100 to a pickup truck for transportation, that is, the user no longer needs to use the pull rod 22, by switching the first operating member 33 to the second state, the user can remove the pull rod 22 from the shield assembly 21 and place it separately, which can reduce the height of the toolbox 100 in the height direction. That is to say, the user can stack items on the toolbox 100 or stuff the toolbox 100 into a narrow place, such as a small pickup truck, and the pull rod device 20 will not interfere with it, thereby making it convenient for users to use.

[0054] Please refer to Figures 6 and 7 , the first connecting component 30 is arranged at the rear end of the toolbox 100. When the user uses the toolbox 100, he or she will inevitably use the first operating member 33 frequently to switch the state. In the up-down direction, the distance D2 between the first operating member 33 and the support plane P is greater than or equal to 430 mm and less than or equal to 500 mm. Under normal circumstances, when the user uses the toolbox 100 normally, he or she will generally stand at the rear end of the toolbox 100. Therefore, the first connecting component 30 is arranged at the rear end of the toolbox 100 to facilitate user switching. The distance D2 from the first operating member 33 to the support plane P is set to any place within the above range. It can be understood that when the user is standing, the first operating member 33 is set within the range of the user's arm movement. In this way, the user can complete the state switching of the first operating member 33 while standing, which is convenient for user operation.

[0055] Toolbox 100 Figure 1When at rest, the distance D1 from the shield assembly 21 to the support plane P in the vertical direction is greater than 450 mm and less than or equal to 600 mm. When working, the user carries the toolbox 100 from the tool storage location to the work site. The distance between the tool storage location and the work site is often quite far, and the user needs to use a vehicle to transport the toolbox 100 to the work site. In this way, the user switches the first operating member 33 to the second state, separates the pull rod device 20 from the box body 10, and then carries the toolbox 100 to the vehicle. Due to the height limit of some vehicles, the toolbox 100 can be placed directly in the vehicle. By setting the distance D1 from the shield assembly 21 to the support plane P within the above range, the user can directly carry the toolbox 100 to the vehicle after pulling the pull rod 22 out of the box body 10, which is convenient for the user to transport.

[0056] like Figures 1 to 3 As shown, the pull rod 22 has an active state, a locked state, and a separated state relative to the tool box 100. When the pull rod 22 is in the active state, the pull rod 22 can be driven to move relative to the shield assembly 21. Specifically, when the pull rod 22 is in the active state, the user can drive the pull rod 22 to move back and forth along the extension direction of the shield assembly 21. When the pull rod 22 is in the locked state, the pull rod 22 moves, and the shield assembly 21 moves with the pull rod 22. That is, when the pull rod 22 moves, the tool box 100 can move with the pull rod 22. Specifically, when the pull rod 22 is in the locked state, the locking assembly 23 locks at least a portion of the pull rod 22 with the track of the shield assembly 21, so that the pull rod 22 and the track remain substantially fixed in the extension direction of the track. When the user pulls the pull rod 22 to move, the tool box 100 can move accordingly. It should be noted that at least a portion of the pull rod 22 is basically fixed to the track in the extension direction of the track. Here, only the locking portion of the pull rod 22 and the track is restricted to remain fixed in the extension direction of the track, and the movement of the pull rod 22 in other directions is not restricted. When the pull rod 22 is in a separated state, the pull rod 22 is separated from the track, that is, the pull rod 22 can be detached from the shield assembly 21 and become a separately set component. The user can switch the pull rod device 20 to multiple different shapes according to his needs. The user can drive the first operating member 33 to achieve the separation or connection of the shield assembly 21 and the box body 10. The user can also drive the locking assembly 23 to achieve the adjustment of different gears of the pull rod 22 and the separation or connection between the pull rod 22 and the shield assembly 21.

[0057] The first connecting assembly 30 is disposed at the rear end of the box body 10. The first connecting assembly 30 also includes a second stopper 34 that can cooperate with the first operating member 33. The second stopper 34 is used to maintain the first operating member 33 in the first state. This prevents the first operating member 33 from being disengaged from the first state during transportation or handling.

[0058] As an embodiment, the first connecting assembly 30 is disposed on the rear side of the connecting frame 214. That is, the first connecting assembly 30 includes a first assembly 31 and a second assembly 32. The first assembly 31 is used to connect the first connecting rod 222 and the first track 212, and the second assembly 32 is used to connect the second connecting rod 223 and the second track 213. The pull rod device 20 is substantially symmetrically arranged. That is, the structure, principle, and operation of the first assembly 31 and the second assembly 32 that cooperate with the pull rod device 20 are substantially identical. To avoid redundant description, only the first assembly 31, and the first connecting rod 222 and the first track 212 that cooperate with the first assembly 31 are described in detail herein.

[0059] The first component 31 is specifically arranged on the rear side of the connecting frame 214. The first component 31 includes a first operating member 33 and a second stop member 34. The first operating member 33 is connected to the connecting frame 214 and can rotate relative to the connecting frame 214 around the first axis 101. That is, one end of the first operating member 33 is connected to the connecting frame 214, and the other end can be driven by the user to rotate around the first axis 101. During the rotation of the first operating member 33, switching between the first state and the second state is achieved. The second stop member 34 is connected to the first operating member 33 and can rotate relative to the first operating member 33 around the second axis. One end of the second stop member 34 can be engaged with the connecting frame 214, thereby maintaining the first operating member 33 in the first state. The first operating member 33 is provided with a toggle portion 36 and a stop portion 35. The toggle portion 36 and the stop portion 35 are integrally formed. The toggle portion 36 is designed for user operation. The first connecting rod 222 is provided with a first adapter 211 that engages with the stopper 35, and the connecting frame 214 is provided with a second adapter through which the stopper 35 passes. The first adapter 211 is connected to or formed on the first connecting rod 222, so that when the first connecting rod 222 moves, the first adapter 211 moves accordingly. The second adapter is connected to or formed on the connecting frame 214. Specifically, the second adapter is positioned in the rotational path of the first operating member 33. As the first operating member 33 is driven to rotate, the stopper 35 can pass through the second adapter and enter the first connecting rod 222. When the first connecting rod 222 is driven by the user to slide within the first track 212, the first adapter 211 contacts the stopper 35, preventing the first adapter 211 from sliding further upward, thereby preventing the first connecting rod 222 from sliding further upward. Consequently, the pull rod 22 cannot be separated from the shield assembly 21. At this point, the first operating member 33 is in the first state. When the first operating member 33 is in the first state, the pull rod 22 can slide within the shield assembly 214 and cannot be disengaged from the shield assembly 214, meaning that the user cannot withdraw the pull rod 22 from the shield assembly 214. At this point, the user can activate the locking assembly 23 to switch the pull rod 22 to a different state to suit their needs. When the user drives the first operating member 33 outward, the stopper 35 disengages from the sliding path of the first connecting rod 222. There is no interference when the first connecting rod 222 slides within the first track 212, allowing the user to withdraw the pull rod 22 from the shield assembly 214. In this embodiment, the first adapter 211 is specifically a rearwardly extending protrusion, the second adapter is specifically a through-hole, and the stopper 35 is a forwardly extending protrusion from the first operating member 33.

[0060] Please refer to Figure 8As shown, in a specific operation mode, when the first operating member 33 is in the first state, the stopper 35 passes through the second adapter portion and is inserted into the first track 212. In other words, when the user attempts to withdraw the pull rod 22, the first connecting rod 222 is blocked by the stopper 35 extending into the first track 212, thereby preventing the first connecting rod 222 from disengaging from the first track 212. At this time, the second stopper 34 is engaged with the connecting frame 214. In other words, the second stopper 34 provides a force to the first operating member 33 to prevent the stopper 35 from disengaging from the first track 212 due to vibration generated between the pull rod 22 and the shield assembly 21 during transportation or handling. To switch the first operating member 33 from the first state to the second state, the user rotates the first operating member 33 outward, disengaging the stopper 35 from the first track 212. The user can then withdraw the pull rod 22 from the shield assembly 21. When the user needs to use the pull rod 22, the first connecting rod 222 and the second connecting rod 223 on the pull rod 22 of the detached shield assembly 21 are aligned with the first track 212 and the second track 213, and then inserted. At this time, the user drives the second stop member 34 to rotate, first sleeves one end of the second stop member 34 on the clamping portion 37 at the rear end of the connecting frame 214, and then rotates the first operating member 33 inward so that the stop portion 35 passes through the second adapter portion and is then inserted into the first track 212. The other end of the second stop member 34 is connected to the first operating member 33, that is, during the rotation of the first operating member 33, it will drive the second stop member 34 to move. Because one end of the second stop member 34 is clamped on the clamping portion 37, that is, during the rotation of the first operating member 33, the second stop member 34 will be tightened, so that the second stop member 34 provides a force to the first operating member 33, thereby preventing the first operating member 33 from disengaging from the first track 212. The clamping portion 37 is configured to be connected to or directly formed by the connecting frame 214 .

[0061] like Figures 8 and 9As shown, the locking assembly 23 can be driven by a user and is at least partially disposed within the connecting frame 214. The locking assembly 23 is used to secure and maintain the opposing first and second connecting rods 222 and 223 in a locked state. In this embodiment, the locking assembly 23 is symmetrically arranged about the bisecting plane A. The locking assembly 23 includes at least a first transmission member 231, a second transmission member 232, a third transmission member 233, a locking portion 225, and a biasing member 235. The first transmission member 231 can be driven by a user to reciprocate along the first linear direction 102. The second transmission member 232 can be driven by the first transmission member 231 to rotate about the second linear direction 103. The third transmission member 233 can be driven by the second transmission member 232 to move along the third linear direction 104. The locking portion 225 is fixedly disposed in the first connecting rod 222, or the locking portion 225 is formed by the first connecting rod 222. When the locking portion 225 contacts the third transmission member 233, the pull rod 22 is in a locked state. When the locking portion 225 is separated from the third transmission member 233, the pull rod 22 is in an active state. The biasing member 235 contacts the third transmission member 233 and can provide a driving force for the third transmission member 233 to move toward the first connecting rod 222. Specifically, the first transmission member 231 includes a contact portion 236 and a transmission portion 237. The contact portion 236 is at least partially disposed outside the connection frame 214 and can be touched and operated by a user. The transmission portion 237 is fixedly connected to or integrally formed with the contact portion 236, i.e., the transmission portion 237 and the contact portion 236 move synchronously. The transmission portion 237 at least partially contacts the second transmission member 232. The user can press the contact portion 236 to cause the transmission portion 237 to move downward along the first linear direction 101, thereby causing the transmission portion 237 to drive the second transmission member 232 to rotate about the second linear direction 103. Furthermore, the transmission portion 237 is an elongated, sawtooth-shaped strip, and the second transmission member 232 is a gear. The transmission portion 237 and the second transmission member 232 are always in meshing engagement. The third transmission member 233 passes through the transmission part 237 of the first transmission member 231, that is, the transmission part 237 has a through hole for the third transmission member 233 to pass through, and the third transmission member 233 includes a supporting part 238, a driving part 239 and a limiting end 234. The supporting part 238, the driving part 239 and the limiting end 234 are fixedly connected or integrally formed, and the second transmission member 232 and the driving part 239 always remain engaged, that is, the driving part 239 can be driven by the second transmission member 232. When the second transmission member 232 is driven to rotate around the second straight line direction 103, the driving part 239 is driven to move along the third straight line direction 104 in the direction away from the first connecting rod 222, that is, the limiting end 234 is separated from the locking part 225. At this time, the first connecting rod 222 can move freely in the first track 212. One end of the biasing member 235 abuts against the abutting portion 238 . When the driving portion 239 moves in a direction away from the first connecting rod 222 , the biasing member 235 is deformed.When the user releases the first transmission member 231, the biasing member 235 provides a driving force to the abutting portion 238, causing the limiting end 234 to move toward the first connecting rod 222. When the biasing member 235 is installed, a preload is applied to the biasing member 235, causing it to abut against the third transmission member 233, thereby providing a driving force toward the first connecting rod 222. The biasing member 235 may be a spring.

[0062] In reality, the locking portion 225 is a locking hole formed in the first connecting rod 222. At least two locking holes are formed in the first connecting rod 222 along the direction in which the first connecting rod 222 extends, through which the stop end 234 can pass. For ease of explanation, these are referred to as the first locking hole and the second locking hole. The first locking hole is located above the second locking hole along the direction in which the first connecting rod 222 extends. When the stop end 234 passes through the locking hole, the pull rod 22 is locked. When the stop end 234 contacts the first locking hole, the first connecting rod 222 is mostly retracted into the first track 212, which is referred to as the first locking position. When the stop end 234 contacts the second locking hole, the first connecting rod 22 is mostly extended outside the first track 212, which is referred to as the second locking position. When the user needs to use the pull rod 22, the pull rod 22 can be placed in the first locking position, thereby detaching the pull rod 22 from the shield assembly 21. When the user needs to move the tool box 100, the pull rod 22 can be placed in the second locking position, and the user can then pull the pull rod 22 to move the tool box 100. Of course, in some other embodiments, one or more intermediate locking holes can be provided between the first locking hole and the second locking hole for adjusting the height of the pull rod 22, which can facilitate adjustment according to the user's needs.

[0063] Since the locking assembly 23 is symmetrically arranged about the bisecting plane A, that is, the locking assembly 23 and the second connecting rod 223 have the same structure, that is, the structures and principles of both sides are basically the same, which will not be repeated here.

[0064] like Figure 4 As shown, the pull rod 22 is further formed with an escape space 221. Specifically, the escape space 221 is formed at the rear ends of the first connecting rod 222 and the second connecting rod 223 in the front-to-back direction, thereby allowing the pull rod 22 to slide smoothly within the shield assembly 21. When the first operating member 33 is in the first state, the stopper 35 is inserted into the first track 212. By providing the escape space 221 on the first connecting rod 222 and the second connecting rod 223, the first connecting rod 222 and the second connecting rod 223 can slide smoothly within the first track 212 and the second track 213. The escape space 221 is specifically a space formed by the rear ends of the first connecting rod 222 and the second connecting rod 223 being recessed forward.

[0065] Figures 8 to 16 The first connecting assembly 60 and the tool box in the second embodiment are schematically shown. The first connecting assembly 60 and the shield assembly in this embodiment have substantially the same principles, but their specific structures are different. The following is a detailed description of their specific structures. Part of the structure in the second embodiment is substantially the same as that in the first embodiment, and the reference numerals in the first embodiment are retained.

[0066] The pull rod device in this embodiment is symmetrically arranged along the bisecting plane A. The first connecting assembly 60 includes a first assembly 61 and a second assembly 62, which are substantially symmetrically arranged along the bisecting plane A. Here, only the structure between the first assembly 61 and the first connecting rod 222 corresponding to the first assembly 61 and the first track 63 will be described. The first operating member 64 can be pushed or pulled by the user to switch the state of the first operating member 64. A first adapter 211 is provided on the first connecting rod 222. When the user drives the first operating member 64 to move inward under force until it is inserted into the first track 63, the first operating member 64 switches to the first state. At this time, the first operating member 64 is in the moving path of the first adapter 211. When the user wants to switch to the second state, they simply pull the first operating member 64 outward to disengage the first operating member 64 from the first track 63. At this time, the first operating member 64 is removed from the moving path of the first adapter 211.

[0067] The first connecting assembly 60 includes a first operating member 64 and a second stopper 643, which is connected to or formed on the first operating member 64. The first operating member 64 includes a stopper 641 and a toggle 642. The stopper 641 is configured to engage with the first adapter 211, and the toggle 642 is configured to be actuated by a user. In this embodiment, the stopper 641, the toggle 642, and the second stopper 643 are all integrally formed. The first connecting rod 222 is provided with the first adapter 211, and the connecting frame 65 is provided with a second adapter 651. The stopper 641 passes through the second adapter 651 and enters the first track 63. The connecting frame 65 is connected to or formed with a snap-fit ​​portion 652 that engages with the second stopper 643. When the first operating member 64 is inserted into the first track 63, the second stopper 643 engages with the snap-fit ​​portion 652, thereby preventing the first operating member 64 from disengaging from the first adapter. The second stoppers 643 are protrusions formed on either side of the first operating member 64, and the engaging portions 652 are protrusions in the sliding path of the first operating member 64. After the first operating member 64 is inserted into the first adapter and the user releases the pushing force on the toggle portion 642, the protrusions on the connecting frame 65 contact and abut the second stoppers 643, thereby preventing the first operating member 64 from disengaging. When the user wishes to separate the first operating member 64 from the first track 63, they pull the toggle portion 642 outward, disengaging the second stoppers 643 from the engaging portions 652, thereby switching the first operating member 64 to the second state. The second stoppers 643 can be made of a partially deformable material. Of course, other third-party components can also be used to achieve connection and separation between the housing and the shield assembly through different motion methods.

[0068] like Figure 14 As shown, the first operating member 64 also includes a guide portion 644. The guide portion 644 is used to cooperate with the connecting frame 65 to guide the inward or outward sliding direction of the first operating member 64. The guide portion 644 is formed on the first operating member 64. Specifically, the guide portion 644 is a guide groove formed by the upper and lower ends of the first operating member 64, which are recessed inward. The connecting frame 65 is provided with a guide groove 653 that cooperates with the guide portion 644. The user needs to insert the guide portion 644 into the guide groove 653 to facilitate the user to drive the toggle portion 642 to move.

[0069] Second stoppers 643 are disposed on the left and right sides of the first operating member 64. The second stoppers 643 can cooperate with the engaging portions 652 to maintain the first operating member 64 in the first state. The second stoppers 643 include a first protrusion 645 and a second protrusion 646 symmetrically disposed on either side of the first operating member 64. The connecting frame 65 includes engaging portions 652 corresponding to the first protrusion 645 and the second protrusion 646, respectively, forming a first engaging portion 654 and a second engaging portion 652. In the left-right direction, the first protrusion 645 and the first engaging portion 654 corresponding to the first protrusion 645, and the second engaging portion 652 corresponding to the second protrusion 646, are substantially symmetrically disposed. Here, the first protrusion 645 and the first engaging portion 654 on one side are used as an example for detailed description. The first protrusion 645 is a protrusion provided on one side of the first operating member 64, and the first engaging portion 654 is a groove provided on the connecting frame 65. The user pushes the first operating member 64 forward until the protrusion engages with the groove, thereby maintaining the first operating member 64 in the first state. When the user pulls the toggle portion 642 backward, the first protrusion 645 disengages the first engaging portion 654, thereby placing the first operating member 64 in the second state. The first protrusion 645 may also be provided with an elastic structure, which facilitates the user's switching of the first operating member 64 from the first state to the second state.

[0070] The first connecting assembly 60 further includes limiting portions 66 disposed on either side of the first operating member 64, namely a first limiting portion 661 and a second limiting portion 662. The connecting frame 65 is provided with a first limiting group 656 and a second limiting group adapted to the first limiting portion 661 and the second limiting portion 662. The first limiting portion 661 and the second limiting portion 662 are disposed on a path for the first protrusion 645 on the first operating member 64 to disengage from the first engaging portion 654 and continue to move backward. In other words, when the first limiting portion 661 and the second limiting portion 662 move backward until they abut against the first limiting group 656 and the second limiting group, the first operating member 64 stops moving backward and disengages from the moving path of the first adapter 211. It can be understood that the first operating member 64 moves between the positions of the second stop 643 and the limiting portion 66, thereby switching the first operating member 64 between the first state and the second state. The first limiting group 656 and the second limiting group are specifically protrusions formed on the connecting frame 65 , and the first limiting portion 661 and the second limiting portion 662 are specifically protrusions formed on both sides of the first operating member 64 .

[0071] Figures 17 to 22 The following is a schematic diagram of the first connecting assembly 70 and the tool box in the third embodiment. The following is a detailed structural description, wherein some structures in the third embodiment are substantially identical to those in the first embodiment, and some reference numerals in the first embodiment are used.

[0072] The first connecting assembly 70 is arranged adjacent to the locking assembly 81. Further, the first connecting assembly 70 is arranged adjacent to the first transmission member 82. The first connecting assembly 70 includes a first operating member 71, and the first operating member 71 can move relative to the connecting frame 80, that is, the first operating member 71 has a first state and a second state relative to the connecting frame 80. When the first operating member 71 is in the first state, the first operating member 71 is on the moving path of the first transmission member 82, that is, the first transmission member 82 will contact the first operating member 71 during the downward pressing process, and the first operating member 71 prevents the first transmission member 82 from continuing to move downward. When the first operating member 71 is in the second state, the first operating member 71 is removed from the moving path of the first transmission member 82, and the first transmission member 82 can continue to move downward until the third transmission member 83 disengages from the first track and the second track, so that the pull rod can disengage from the shield assembly. It can be understood that the first transmission member 82 can be driven by the user.

[0073] The first connecting rod 72 and the second connecting rod 73 are respectively provided with a first adapter 721 and a second adapter 731. The first connecting rod 72 and the second connecting rod 73 are arranged substantially symmetrically, that is, the first adapter 721 and the second adapter 731 have substantially identical structures. The structure of the first adapter 721 and the third transmission member 83 are used as an example for description. When the first operating member 71 is in the first state, the third transmission member 83 is in the moving path of the first adapter 721. When the first operating member 71 is in the second state, the third transmission member 83 is removed from the moving path of the first adapter 721. Thus, without the obstruction of the third transmission member 83, the pull rod can be directly removed from the shield assembly.

[0074] The first transmission member 82 can be driven to move between an unlocked position, an intermediate position, and a linkage position. When the first transmission member 82 is in the first state, the first transmission member 82 can switch between the linkage position and the intermediate position. When the first operating member 71 is in the second state, the first transmission member 82 can switch from the linkage position to the unlocked position. The unlocked position refers to the farthest position where the first transmission member 82 can be moved downward by force after the third transmission member 83 is removed from the moving path of the first adapter 721. The intermediate position refers to the farthest position where the first transmission member 82 can be moved downward by force when the first transmission member 82 is in the first state. The linkage position refers to the position of the first transmission member 82 when it is not subject to force, generally referring to the initial position. In the up and down directions, the intermediate position is located between the linkage position and the unlocked position.

[0075] The first operating member 71 is rotatable relative to the connecting frame 80 and includes a driving portion 711 and a stop portion 712. The driving portion 711 and the stop portion 712 are integrally formed. The stop portion 712 is at least partially disposed within the connecting frame 80 and is capable of cooperating with the first transmission member 82. The driving portion 711 is driven by the user to switch the state of the first operating member 71. The connecting frame 80 has a first stop end 84 and a second stop end 85. In the vertical direction, the first stop end 84 is disposed above the second stop end 85. The first stop end 84 and the second stop end 85 are capable of cooperating with the stop portion 712 to limit further rotation of the stop portion 712. When the user wants to switch the first operating member 71 to the first state, they simply rotate the first operating member 71 upward so that the stop portion 712 abuts against the first stop end 84. The user presses the first transmission member 82 downward until it abuts against the stop portion 712. At this point, the first transmission member 82 is in the middle position. Due to the abutment of the stop portion 712, the first transmission member 82 cannot be pressed further, that is, the limit end 831 of the third transmission member 83, which is linked to the first transmission member 82, cannot continue to move toward the first transmission member 82. At this time, the limit end 831 of the third transmission member 83 is located in the movement path of the first adapter 721, so that the pull rod cannot be separated from the shield assembly. In other words, at this time, the user can only drive the first transmission member 82 to move between the linked position and the middle position. When the user wants to switch the first operating member 71 to the second state, he only needs to rotate the first operating member 71 downward until the stop portion 712 abuts against the second stop end 85. At this time, the first transmission member 82 can move to the unlocked position. In other words, the first transmission member 82 can continue to move forward through the intermediate position until it reaches the unlocked position, and the user can press the first transmission member 82 downward, thereby driving the limiting end 831 of the third transmission member 83 toward the first transmission member 82 until the limiting end 831 is removed from the moving path of the first adapter member 721. In summary, it can also be understood that when the first operating member 71 is in the first state and the first transmission member 82 is in the intermediate position, the distance D3 from the limiting end 831 to the first transmission member 82 is smaller than the distance D4 from the limiting end 831 to the first transmission member 82 when the first operating member 71 is in the second state and the first transmission member 82 is in the unlocked position.

[0076] In this embodiment, an avoidance space 86 is also provided on the first connecting rod 72 and the second connecting rod 73. Different from the first and second embodiments in which the avoidance space 86 is located at the rear ends of the first connecting rod 72 and the second connecting rod 73, the avoidance space 86 in this embodiment is located on the sides of the two connecting rods, that is, the right side of the first connecting rod 72 is recessed inward to form the avoidance space 86, and similarly, the left side of the second connecting rod 73 is recessed inward to form the avoidance space 86. The avoidance space 86 allows the connecting rod to slide in the shield assembly under the guidance of the limit end 831.

[0077] The above shows and describes the basic principles, main features and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of this application.

Claims

1. A toolbox comprising: The box body has side walls extending substantially in the up-down direction; A walking assembly is mounted on the box, wherein the walking assembly includes wheels capable of moving relative to the ground; It is characterized in that The toolbox also includes: A pull rod device connected to the box body, the pull rod device comprising a shield assembly and a pull rod; a first connecting assembly configured to cooperate with the pull rod device, the first connecting assembly comprising a first operating member capable of moving relative to the box; During the movement of the first operating member, the first operating member has at least a first state and a second state. When the first operating member is in the first state, the shield assembly is connected to the box body, and the pull rod can move relative to the shield assembly without being separated. When the first operating member is in the second state, the pull rod is configured to be able to separate from the shield assembly. In which, the box and the wheels have at least three support points relative to the ground, and the plane where the three support points are located is defined as the support plane. When the pull rod is separated from the guard assembly, in the up and down directions, the distance from the first operating part to the support plane is greater than or equal to 430 mm and less than or equal to 500 mm.

2. The tool box according to claim 1, characterized in that The pull rod is connected to or formed with a first adapter that can cooperate with the first operating member. When the first operating member is in a first state, the first operating member can abut against the first adapter, and the pull rod can drive the shield assembly to move relative to the ground.

3. The tool box according to claim 2, characterized in that A first adapter portion is connected to or formed on the shield assembly, and the first operating member moves relative to the box body into the first adapter portion, thereby switching the first operating member to the first state.

4. The tool box according to claim 3, characterized in that The first connecting assembly further includes a second stopper configured to cooperate with the first operating member to keep the first operating member in the first state.

5. The tool box according to claim 4, characterized in that: The first operating member rotates relative to the box body into the first adapter portion, and then engages with the first adapter member.

6. The tool box according to claim 5, characterized in that The second stop member is rotatably connected to the first operating member. During the process of the first operating member switching from the second state to the first state, after the second stop member contacts the box body, the first operating member is driven to rotate toward the direction close to the first adapter part until the first operating member is engaged with the first adapter part.

7. The tool box according to claim 4, characterized in that The second stopper is connected to or formed on the first operating member. After the first operating member is switched to the first state, the second stopper can abut against the box body to prevent the first operating member from being separated from the first adapter.

8. The tool box according to claim 1, characterized in that The toolbox also includes a locking assembly for releasing and locking the pull rod, the locking assembly including a first transmission member that reciprocates along a first direction and a third transmission member that can be driven to move by the first transmission member. During the movement of the first transmission member, the first transmission member has an unlocked position and a linkage position, as well as an intermediate position arranged between the unlocked position and the linkage position.

9. The tool box according to claim 8, characterized in that When the first operating member is in a first state, the first transmission member can switch between the linkage position and the intermediate position. When the first operating member is in the second state, the first transmission member can switch from the linkage position to the unlocking position.

10. The tool box according to claim 9, characterized in that The first operating member includes a stopper. When the first operating member is in the first state, During the forward movement of the first transmission member along the first direction, the first transmission member abuts against the stop portion, thereby preventing the first transmission member from further moving forward, and keeping the first transmission member at the middle position.

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