Tool tray and ladder

Abstract

The utility model provides a kind of tool tray and ladder, it is related to tool technical field, including tray body and two groups of assembly components being installed to tray body along the left and right direction of tray body;Assembly component includes: connecting seat, it is equipped with arc guiding surface, rear end is equipped with two locking holes;Positioning seat is connected in the rear end inside tray body and is equipped with inner cavity;Two groups of locking unlocking components, each group is respectively including push rod, spring and open blocking ring;In the state of locking, under the action of spring, the head end of push rod keeps the state of insertion in one locking hole inside, under the action of force in the direction of X and from the connecting seat to the positioning seat to push push rod, spring is compressed, the head end of push rod is separated from corresponding locking hole.In the utility model, the technical problem that the ladder is not configured with tool tray in the prior art, inconvenient to use, or, tool tray is fixedly connected to ladder, user is difficult to flexibly disassemble according to actual demand, is not conducive to the technical problem that ladder is stored and is used in corner and other narrow space.

Description

Technical Field

[0001] This utility model relates to the field of tool technology, and in particular to a tool tray and ladder. Background Technology

[0002] Ladders are a common tool for working at heights and are widely used in various scenarios such as construction, decoration, and maintenance. With the diversification of usage needs, users often need to temporarily place tools, parts, and other items on the ladder for easy access during high-altitude operations.

[0003] Traditional ladder structures mainly consist of basic components such as ladder frames, rungs, and anti-slip pads.

[0004] Most ladders do not come with a tool tray and lack easy aftermarket installation options. If users want to install a tool tray, they often need to use additional tools (such as electric drills, rivet guns, etc.), which is very inconvenient. In addition, installing a tool tray often damages the original structure of the ladder. While some ladders come with tool trays, their installation typically uses permanent connections such as rivets or welding, making the tray and ladder a single, integrated structure. While this method ensures the tray's stability, it sacrifices flexibility. Users cannot quickly assemble or disassemble the tool tray according to actual work needs, which is detrimental to ladder storage and use in narrow spaces such as corners. Utility Model Content

[0005] The purpose of this invention is to provide a tool tray and ladder to alleviate the aforementioned technical problems.

[0006] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions: In a first aspect, this utility model provides a tool tray, including a tray body and two sets of assembly components mounted on the tray body in the left-right direction along the tray body; With the left-right direction of the tray body as the X direction, the assembly assembly includes: A connecting seat is provided on the outer side of the rear end of the tray body. On the side facing the tray body, there is an arc-shaped guide surface that protrudes towards the tray body. At its rear end, there are two locking holes that penetrate the side wall of the connecting seat along the X direction. Both locking holes are located at the protruding part of the arc-shaped guide surface. The positioning seat is fixed or integrally connected to the rear end of the tray body and has an inner cavity; Two sets of locking and unlocking components are provided, each set including a lever, a spring, and an open retaining ring; the lever passes through the positioning seat and the rear side wall of the tray body in the X direction, and the tail end of the lever is located on the side of the positioning seat away from the connecting seat; the open retaining ring and the spring are disposed in the inner cavity of the positioning seat, the open retaining ring is nested in the annular groove provided on the outer wall of the lever, and the two ends of the spring abut against the open retaining ring and the inner wall of the positioning seat, respectively; The rear end of the tray body is provided with an operating port for moving the tail end of the lever; In the locked state, under the action of the spring, the head end of the lever remains inserted into one of the locking holes. In the unlocked state, under the force of moving the lever along the X direction from the connecting seat toward the positioning seat, the spring is compressed, and the head end of the lever disengages from the corresponding locking hole.

[0007] In an optional embodiment, the locking / unlocking component includes a pivot assembly, wherein the lever in the pivot assembly is a positioning pin.

[0008] In an optional embodiment, the tail end of the locating pin is provided with a circumferential groove.

[0009] In an optional embodiment, along the X direction, a guide groove is provided on the side surface of the connecting seat facing the tray body, and the guide groove communicates with the locking hole corresponding to the rotating shaft assembly.

[0010] In an optional implementation, the locking / unlocking component includes a handle assembly; The lever in the handle assembly is an operating handle. The operating handle includes a handle rod and a handle fixedly or integrally connected to the end of the handle rod. The handle rod passes through the positioning seat and the rear side wall of the tray body in the X direction. The handle is located on the side of the positioning seat away from the connecting seat. An open retaining ring and a spring are fitted onto the outside of the handle rod; In the locked state, the head of the handle rod remains inserted into the corresponding locking hole under the action of the spring. In the unlocked state, the spring is compressed under the pressure of pressing the handle along the X direction from the connecting seat to the positioning seat, and the head of the handle rod disengages from the corresponding locking hole.

[0011] In an optional embodiment, the handle has a recessed surface on the side facing the positioning seat along the X direction that is recessed away from the positioning seat.

[0012] In an optional embodiment, the positioning seat is fixed in the mounting cavity inside the rear end of the tray body. The inner wall of the mounting cavity is also provided with a plurality of guide ribs arranged at intervals along the X direction and provided with grooves. The grooves provided on the plurality of guide ribs are connected along the X direction to form an X-direction limiting track groove. The handle is embedded in the X-direction limiting track groove and can slide along the X-direction limiting track groove.

[0013] In an optional embodiment, in each set of assembly components, the positioning seat has a partition plate that divides the inner cavity of the positioning seat into two sub-cavities extending along the X direction. The levers of the two sets of locking and unlocking components pass through the two sub-cavities respectively, and the springs and opening retaining rings of the two sets of locking and unlocking components are respectively installed in the corresponding sub-cavities; and / or, the rear end of the tray body has two sub-mounting cavities separated by a partition plate 2 along the X direction, and the two sets of assembly components are respectively assembled in the corresponding sub-mounting cavities. Here, "and / or" indicates that the structure before "and / or" and the structure after "and / or" are designed simultaneously or selectively.

[0014] In an optional embodiment, the connecting seat is further provided with mounting holes for cooperating with a fastener to fix the connecting seat to the inner side of the ladder frame.

[0015] In a second aspect, this utility model provides a ladder, including a ladder frame and a tool tray provided in any of the optional embodiments of the first aspect; The ladder frame has mounting holes on both the left and right uprights, and the connecting seats of the two sets of assembly components are fixedly connected to the inner sides of the left and right uprights of the ladder frame by fasteners.

[0016] The embodiments of this utility model can achieve at least the following beneficial effects: In this embodiment of the utility model, the connecting seats of the two sets of assembly components can be detachably fixedly connected to the inner sides of the left and right columns of the ladder frame. The preferred method of fixing is to use bolt and nut assemblies or other fixing connectors for detachable connection, so as to install the tool tray onto the ladder.

[0017] Each assembly component connects the tray body to the inner side of the corresponding side column of the ladder frame through two sets of locking and unlocking components. The locking method between each set of locking and unlocking components and the corresponding side connection seat is as follows: push the tray body along the arc-shaped guide surface of the connection seat so that the head end of the lever is pushed into the corresponding locking hole along the arc-shaped guide surface. Under the action of the spring, the head end of the lever automatically inserts into the corresponding locking hole to achieve self-locking. Since the two sets of assembly components are symmetrically arranged along the X direction, the two sets of locking and unlocking components of one set of assembly components and the two sets of locking and unlocking components of the other set of assembly components respectively form two pairs of locking and unlocking components arranged at intervals along the X direction. When one pair of locking and unlocking components completes self-locking, this pair of self-locking locking and unlocking components can serve as a "rotating shaft structure" as a fulcrum for the tray body to rotate relative to the ladder frame. When the tray body rotates relative to the ladder frame to the unfolded state, the other pair of locking and unlocking components achieves self-locking in the same way, thereby unfolding the tray body and locking it to the ladder frame. When it is necessary to fold the tray body relative to the ladder frame, the pair of locking and unlocking components, which serve as the "rotating shaft structure," remain locked, and the other pair of locking and unlocking components are unlocked. The unlocking method is to move the lever along the X direction from the connecting seat toward the positioning seat, which requires the lever to compress its spring so that the head end of the lever disengages from the corresponding locking hole, thereby folding and storing the tray body. When it is necessary to completely remove the tray body from the ladder frame, the pair of locking and unlocking components, which serve as the "rotating shaft structure," are unlocked in the same way.

[0018] In summary, the tool tray provided in this embodiment can be flexibly and quickly attached and detached from the tool ladder, solving the technical problems in the prior art where ladders without tool trays are inconvenient to use, or where tool trays are fixedly connected to the ladder, making it difficult for users to flexibly detach and detach them according to actual needs, which is not conducive to ladder storage and use in narrow spaces such as corners.

[0019] In addition, this utility model embodiment also provides several optional implementation methods. The specific implementation method section of this specification will provide a detailed description and explanation of the specific structure and functional effects of these optional implementation methods. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 An isometric view of the tool tray provided in an embodiment of this utility model; Figure 2 An exploded view of the tool tray provided in this embodiment of the utility model; Figure 3 A schematic diagram of the interior of the tray body in the tool tray provided in this embodiment of the utility model (axonometric view from below). Figure 4 This is a schematic diagram of the side structure of the connecting seat in the tool tray provided in an embodiment of the present utility model; Figure 5 A cross-sectional view of the rear end area of ​​the tool tray provided in an embodiment of this utility model; Figure 6 This is a schematic diagram of the overall structure of the ladder provided in an embodiment of the present utility model; Figure 7 for Figure 6 Enlarged view of the structure of region A in the middle; Figure 8 for Figure 6 An exploded view of the structure in region A.

[0022] Icons: 1-Pallet body; 101-Operating port; 11-Guide rib; 111-X-direction limiting track groove; 12-Second partition; 2-Connecting seat; 201-Arc-shaped guide surface; 21-Locking hole one; 22-Locking hole two; 23-Guide groove; 24-Mounting hole; 3-Positioning seat; 31-Partition 1; 4-Spindle assembly; 41-Positioning pin; 411-Circumferential groove; 42-Spring 1; 43-Opening retaining ring 1; 5-Handle assembly; 51-Operating handle; 511-Handle lever; 512-Handle handle; 5120-Concave surface; 52-Spring II; 53-Open retaining ring II; 6-Ladder frame. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the accompanying drawings indicate similar items. Therefore, once an item is defined in one accompanying drawing, it does not need to be further defined and explained in subsequent accompanying drawings.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, the terms "horizontal" and "vertical" do not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] First aspect This embodiment provides a tool tray, as shown in the reference. Figures 1 to 5 The tool tray includes a tray body 1 and two sets of assembly components mounted on the tray body 1 in the left-right direction; Taking the left-right direction of the tray body 1 as the X direction, each assembly group includes a connecting seat 2, a positioning seat 3, and two sets of locking and unlocking components. The connecting seat 2 is located on the outer rear end of the tray body 1. The side of the connecting seat 2 facing the tray body 1 has an arc-shaped guide surface 201 protruding towards the tray body 1. The rear end of the connecting seat 2 has two locking holes that penetrate the side wall of the connecting seat 2 along the X direction, and both locking holes are located at the protruding part of the arc-shaped guide surface 201. The positioning seat 3 is fixed or integrally connected to the interior of the rear end of the tray body 1, and the positioning seat 3 has an internal cavity. Each set of locking and unlocking components includes a lever, a spring, and an open retaining ring. The lever passes through the positioning seat 3 and the rear end side wall of the tray body 1 along the X direction, and the tail end of the lever is located on the side of the positioning seat 3 away from the connecting seat 2. The open retaining ring and the spring are located in the internal cavity of the positioning seat 3. The open retaining ring is nested in an annular groove on the outer wall of the lever, and the two ends of the spring abut against the open retaining ring and the inner wall of the positioning seat 3, respectively. The rear end of the tray body 1 is provided with an operation port 101 for moving the tail end of the lever; in the locked state, under the action of the spring, the head end of the lever remains inserted into a locking hole; in the unlocked state, under the force of moving the lever in the X direction from the connecting seat 2 toward the positioning seat 3, the spring is compressed and the head end of the lever disengages from the corresponding locking hole.

[0031] In this embodiment, the tool tray can be installed on the ladder. The installation method can be referred to... Figures 6 to 8 The connecting seats 2 of the two sets of assembly components are respectively fixedly connected to the inner sides of the left and right columns of the ladder frame 6 in a detachable manner. The preferred fixed connection method is to use bolt and nut assemblies or other fixed connectors for detachable connection.

[0032] Each assembly component connects the tray body 1 to the inner side of the corresponding column of the ladder frame 6 via two sets of locking and unlocking components. The locking method between each set of locking and unlocking components and the corresponding side connecting seat 2 is as follows: push the tray body 1 along the arc-shaped guide surface 201 of the connecting seat 2 so that the head end of the lever is pushed into the corresponding locking hole along the arc-shaped guide surface 201. Under the action of the spring, the head end of the lever automatically inserts into the corresponding locking hole to achieve self-locking. Since the two sets of assembly components are symmetrically arranged along the X direction, the two sets of locking and unlocking components of one set of assembly components and the two sets of locking and unlocking components of the other set of assembly components respectively form two pairs of locking and unlocking components arranged at intervals along the X direction. When one pair of locking and unlocking components completes self-locking, the self-locking pair of locking and unlocking components can serve as a "rotating shaft structure" as a fulcrum for the rotation of the tray body 1 relative to the ladder frame. When the tray body 1 rotates relative to the ladder frame to the unfolded state, the other pair of locking and unlocking components achieves self-locking in the same way, thereby unfolding the tray body 1 and locking it to the ladder frame 6. When it is necessary to fold the tray body 1 relative to the ladder frame 6, the pair of locking and unlocking components, which serve as the "rotating shaft structure," remain locked, and the other pair of locking and unlocking components are unlocked. The unlocking method is to move the lever along the X direction from the connecting seat 2 toward the positioning seat 3, which requires the lever to compress its spring so that the head end of the lever disengages from the corresponding locking hole, thereby folding and storing the tray body 1. When it is necessary to completely remove the tray body 1 from the ladder frame 6, the pair of locking and unlocking components, which serve as the "rotating shaft structure," are unlocked in the same way.

[0033] In summary, the tool tray provided in this embodiment can be flexibly and quickly attached and detached from the tool ladder, solving the technical problems in the prior art where ladders without tool trays are inconvenient to use, or where tool trays are fixedly connected to the ladder, making it difficult for users to flexibly detach and detach them according to actual needs, which is not conducive to ladder storage and use in narrow spaces such as corners.

[0034] In an optional embodiment of this example, one of the two sets of locking and unlocking components is a pivot assembly 4 as the aforementioned "pivot structure," and the lever in the pivot assembly 4 is a positioning pin 41. Specifically, the pivot assembly 4 includes a positioning pin 41, a spring 42, and an open retaining ring 43; the positioning pin 41 passes through the positioning seat 3 and the rear end side wall of the tray body 1 along the X direction, and the tail end of the positioning pin 41 is located on the side of the positioning seat 3 away from the connecting seat 2; the open retaining ring 43 and the spring 42 are disposed in the inner cavity of the positioning seat 3, the open retaining ring 43 is nested in the annular groove provided on the outer wall of the positioning pin 41, and the two ends of the spring 42 respectively abut against the open retaining ring 43 and the inner wall of the positioning seat 3. The rear end of the tray body 1 is provided with an operating port 101 for moving the tail end of the positioning pin 41. In the locked state, under the action of the spring, the head end of the positioning pin 41 remains inserted into the locking hole 21. In the unlocked state, under the force of moving the positioning pin 41 in the X direction from the connecting seat 2 toward the positioning seat 3, the spring 42 is compressed, and the head end of the positioning pin 41 disengages from the corresponding locking hole 21. Further optionally, the tail end of the positioning pin 41 is provided with a circumferential groove 411 for the user to hold the tail end of the positioning pin 41, so as to facilitate moving (pulling) the positioning pin 41 in the X direction from the connecting seat 2 toward the positioning seat 3. In addition, optionally, in the X direction, the side surface of the connecting seat 2 facing the tray body 1 is provided with a guide groove 23, which communicates with the locking hole (i.e., locking hole 21) corresponding to the rotating shaft assembly 4. When locked, the tray body 1 slides along the guide groove 23, which can guide the head end of the positioning pin 41, so that the head end of the positioning pin 41 slides into the locking hole 21 more accurately and smoothly to achieve self-locking.

[0035] In an optional embodiment of this example, one of the two sets of locking and unlocking components is a handle assembly 5. The lever in the handle assembly 5 is an operating handle 51. Specifically, the handle assembly 5 includes an operating handle 51, a second spring 52, and a second open retaining ring 53. The operating handle 51 includes a handle rod 511 and a handle 512 fixedly or integrally connected to the tail end of the handle rod 511. The handle rod 511 passes through the positioning seat 3 and the rear end side wall of the tray body 1 in the X direction. The handle 512 is located on the side of the positioning seat 3 away from the connecting seat 2. The second open retaining ring 53 and the second spring 52 are disposed in the inner cavity of the positioning seat 3. The second open retaining ring 53 is nested in the annular groove provided on the outer wall of the handle rod 511. The two ends of the second spring 52 abut against the second open retaining ring 53 and the inner wall of the positioning seat 3, respectively. The rear end of the tray body 1 is provided with an operation port 101 for actuating the handle 512. In the locked state, under the action of the second spring 52, the head end of the handle rod 511 remains inserted into the second locking hole 22. In the unlocked state, under the pressure of pressing the handle 512 in the X direction from the connecting seat 2 to the positioning seat 3, the second spring 52 is compressed, and the head end of the handle rod 511 disengages from the second locking hole 22. When the pair of locking and unlocking components, which are "rotating shaft structures", are self-locked, pressing the handle 512 is sufficient to unlock the other pair of locking and unlocking components. Then, the tray body 1 can be folded and stored by rotating it accordingly. Alternatively, it can be unlocked simultaneously with the pair of locking and unlocking components, which are "rotating shaft structures", to easily remove the tool tray from the ladder frame 6.

[0036] Alternatively, the handle 512 of the above-mentioned operating handle 51 has a recessed surface 5120 on the side facing the positioning seat 3 in the X direction, which is recessed on the side opposite to the positioning seat 3. In this way, when unlocking, the recessed surface 5120 can be held in the X direction from the connecting seat 2 to the positioning seat 3 to easily press the handle 512, making it more convenient for users to use and improving the user experience.

[0037] In an optional embodiment of this example, the positioning seat 3 is fixed in the mounting cavity inside the rear end of the tray body 1. On the inner wall of the mounting cavity, there are also a plurality of guide ribs 11 arranged at intervals along the X direction and provided with grooves. The grooves provided on these guide ribs 11 are connected along the X direction to form an X-direction limiting track groove 111. The handle 512 is embedded in the X-direction limiting track groove 111 and can slide along the X-direction limiting track groove 111. In this way, when locking or unlocking with the operating handle 51, the operating handle 51 is guided to ensure that the handle rod 511 of the operating handle 51 slides smoothly along the X direction without any obstruction, and the locking and unlocking process is smooth and unobstructed.

[0038] In an optional embodiment of this example, for each set of assembly components, the positioning seat 3 has a partition 31 inside, which divides the inner cavity of the positioning seat into two sub-cavities extending along the X direction. The levers of the two sets of locking and unlocking components pass through the two sub-cavities one by one, and the springs and opening retaining rings of the two sets of locking and unlocking components are respectively installed in the corresponding sub-cavities; and / or, the rear end of the tray body 1 has two sub-mounting cavities separated by a partition 12 along the X direction, and the two sets of assembly components are respectively assembled in the corresponding sub-mounting cavities. Here, "and / or" indicates that the structure before "and / or" and the structure after "and / or" are designed simultaneously or selectively.

[0039] In addition, in an optional embodiment of this example, the connecting seat 2 is also provided with a mounting hole 24 for cooperating with a fastener to fix the connecting seat 2 to the inner side of the ladder frame 6. The specific type of fastener can be, but is not limited to, bolt and nut assemblies, rivets, clamps and bolt and nut assemblies, or any detachable fastener.

[0040] Second aspect Reference Figures 6 to 8 This embodiment provides a ladder, including a ladder frame 6 and a tool tray provided in any optional embodiment of the first aspect; the left and right columns of the ladder frame 6 are provided with mounting holes 24, and the connecting seats 2 of the two sets of assembly components are respectively fixedly connected to the inner sides of the left and right columns of the ladder frame 6 by fasteners. The specific type of fasteners can be, but is not limited to, bolt and nut assemblies, rivets, or clamps and bolt and nut assemblies, etc., any detachable fasteners.

[0041] For a more specific structure of the tool tray in the ladder provided in this embodiment and the effects that the ladder provided in this embodiment can achieve, please refer to the optional or preferred embodiments in the first aspect.

[0042] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A tool tray, characterized in that, It includes a pallet body and two sets of assembly components mounted on the pallet body along the left-right direction of the pallet body; With the left-right direction of the tray body as the X direction, the assembly assembly includes: A connecting seat is provided on the outer side of the rear end of the tray body. On the side facing the tray body, there is an arc-shaped guide surface that protrudes towards the tray body. At its rear end, there are two locking holes that penetrate the side wall of the connecting seat along the X direction. Both locking holes are located at the protruding part of the arc-shaped guide surface. The positioning seat is fixed or integrally connected to the rear end of the tray body and has an inner cavity; Two sets of locking and unlocking components are provided, each set including a lever, a spring, and an open retaining ring; the lever passes through the positioning seat and the rear side wall of the tray body in the X direction, and the tail end of the lever is located on the side of the positioning seat away from the connecting seat; the open retaining ring and the spring are disposed in the inner cavity of the positioning seat, the open retaining ring is nested in the annular groove provided on the outer wall of the lever, and the two ends of the spring abut against the open retaining ring and the inner wall of the positioning seat, respectively; The rear end of the tray body is provided with an operating port for moving the tail end of the lever; In the locked state, under the action of the spring, the head end of the lever remains inserted into one of the locking holes. In the unlocked state, under the force of moving the lever along the X direction from the connecting seat toward the positioning seat, the spring is compressed, and the head end of the lever disengages from the corresponding locking hole.

2. The tool tray according to claim 1, characterized in that, The locking / unlocking assembly includes a pivot assembly, and the lever in the pivot assembly is a positioning pin.

3. The tool tray according to claim 2, characterized in that, The locating pin has a circumferential groove at its tail end.

4. The tool tray according to claim 2, characterized in that, Along the X direction, a guide groove is provided on the side surface of the connecting seat facing the tray body, and the guide groove is connected to the locking hole corresponding to the rotating shaft assembly.

5. The tool tray according to claim 1, characterized in that, The locking / unlocking component includes a handle assembly; The lever in the handle assembly is an operating handle. The operating handle includes a handle rod and a handle fixedly or integrally connected to the end of the handle rod. The handle rod passes through the positioning seat and the rear side wall of the tray body in the X direction. The handle is located on the side of the positioning seat away from the connecting seat. An open retaining ring and a spring are fitted onto the outside of the handle rod; In the locked state, the head of the handle rod remains inserted into the corresponding locking hole under the action of the spring. In the unlocked state, the spring is compressed under the pressure of pressing the handle along the X direction from the connecting seat to the positioning seat, and the head of the handle rod disengages from the corresponding locking hole.

6. The tool tray according to claim 5, characterized in that, The handle has a recessed surface on the side facing the positioning seat along the X direction, which is recessed away from the positioning seat.

7. The tool tray according to claim 5, characterized in that, The positioning seat is fixed in the mounting cavity inside the rear end of the tray body. On the inner wall of the mounting cavity, there are also a plurality of guide ribs arranged at intervals along the X direction and having grooves. The grooves on the plurality of guide ribs are connected along the X direction to form an X-direction limiting track groove. The handle is embedded in the X-direction limiting track groove and can slide along the X-direction limiting track groove.

8. The tool tray according to claim 1, characterized in that, In each of the assembly components, the positioning seat is provided with a partition to divide the inner cavity of the positioning seat into two sub-cavities extending along the X direction. The levers of the two sets of locking and unlocking components pass through the two sub-cavities in a corresponding manner. The springs and opening retaining rings of the two sets of locking and unlocking components are respectively installed in the corresponding sub-cavities. And / or, the rear end of the tray body has two sub-mounting cavities separated by a partition plate 2 along the X direction, and the two sets of assembly components are respectively assembled in the corresponding sub-mounting cavities.

9. The tool tray according to claim 1, characterized in that, The connecting seat is also provided with mounting holes for cooperating with fasteners to fix the connecting seat to the inner side of the ladder frame.

10. A ladder, characterized in that, Includes a ladder frame and a tool tray as claimed in any one of claims 1 to 9; The ladder frame has mounting holes on both the left and right uprights, and the connecting seats of the two sets of assembly components are fixedly connected to the inner sides of the left and right uprights of the ladder frame by fasteners.

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