Ladder with tool box

Abstract

The utility model provides a ladder with tool box, including ladder body and the tool box of installation at the top of ladder body. The top of tool box is provided with a plurality of containing grooves. The slot of a plurality of containing grooves is covered with cover plate. The cover plate is connected with tool box and has self-resetting structure. Self-resetting structure includes vertical plate, top plate, rotating plate, shaft, bottom block and coil spring. The outer side wall of shaft is fixed with fixed block. The inside of bottom block is provided with inner chamber for the insertion of fixed block. The cover plate can be automatically reset and closed after opening the cover plate, avoiding the tools falling from the tool box due to forgetting to close the cover plate when moving the ladder.

Description

Technical Field

[0001] This utility model relates to the field of ladder technology, specifically a ladder with a toolbox. Background Technology

[0002] Setting up a toolbox at the top of a ladder is a common technique in existing technology.

[0003] For example, Chinese Patent CN209780735U discloses a ladder with a toolbox, which includes a straight A-frame ladder and a rear support frame disposed on the side of the straight A-frame ladder. The straight A-frame ladder includes a first left support rod and a first right support rod, and several foot pedals are disposed between the first left support rod and the first right support rod. A toolbox is connected to the top of the first left support rod and the first right support rod. The rear support frame includes a second left support rod and a second right support rod. The first left support rod and the second left support rod, as well as the first right support rod and the second right support rod, are all hinged together by reinforcing hinges.

[0004] For example, Chinese Patent CN207260952U describes a ladder with a novel toolbox, comprising a ladder and a toolbox. The toolbox includes a supporting base and one or more storage trays. The supporting base is installed on the top of the two ladder bars. The lowest storage tray is rotatably connected to the supporting base and can be placed on top of it. Adjacent storage trays are rotatably connected, with the upper storage tray covering the lower one.

[0005] The advantage of setting up a toolbox at the top of the ladder is that commonly used tools such as nails and bolts can be stored in the toolbox, so users do not need to carry these tools up and down the ladder separately.

[0006] However, in actual use, it is common for people to forget to close the toolbox lid, causing tools to fall out of the toolbox when the ladder is moved.

[0007] Therefore, this utility model proposes a new technical solution to solve the problem that tools fall out of the toolbox when the ladder is moved because the cover plate is forgotten to be closed. Utility Model Content

[0008] The purpose of this utility model is to provide a ladder with a tool box, which aims to achieve the technical effect that the cover can automatically reset and close after being opened.

[0009] A ladder with a toolbox includes a ladder body and a toolbox mounted on the top of the ladder body. The top of the toolbox has several receiving slots, each covered by a cover plate. A self-resetting structure connects the cover plate and the toolbox. The self-resetting structure includes a vertical plate, a top plate, a rotating plate, a shaft, a bottom block, and a coil spring. The vertical plate is fixed to the top of the toolbox, and the top plate is fixed to the top of the vertical plate. The shaft is fixedly connected between the top plate and the toolbox. A fixing block is fixed to the outer wall of the shaft. One end of the rotating plate is rotatably sleeved on the outside of the shaft via a bearing, and the other end of the rotating plate is fixedly connected to the cover plate. The bottom block is fixed to the bottom of the rotating plate and rotatably sleeved on the outside of the shaft. The bottom block has an internal cavity into which the fixing block can be inserted. The coil spring is installed inside the internal cavity, with one end fixedly connected to the fixing block and the other end fixedly connected to the cavity wall.

[0010] By adopting the above technical solution, the user rotates the cover plate, which drives the rotating plate to rotate around the shaft. The rotating plate then drives the base block to rotate around the shaft. Since the fixed block on the shaft does not rotate, the rotation of the base block stretches the coil spring, creating a rebound force to drive the base block to rotate back to its original position. Thus, after the cover plate is released, under the action of the rebound force of the coil spring, the cover plate automatically rotates back to its original position and closes the slot of the receiving groove. This utility model allows the cover plate to automatically reset and close after being opened, preventing tools from falling out of the toolbox when the ladder is moved due to forgetting to close the cover plate.

[0011] A further feature of this invention is that a temporary placement slot is provided at the top of the toolbox.

[0012] By adopting the above technical solution, after opening the cover, tools can be taken out from the receiving slot according to the required quantity and placed into the temporary placement slot, eliminating the need to repeatedly open and close the cover.

[0013] A further feature of this invention is that a handle is fixed to the top of the cover plate.

[0014] By adopting the above technical solution, the cover can be rotated more conveniently using the handle.

[0015] A further feature of this invention is as follows: the top of the toolbox is provided with a corresponding insertion hole for the handle, and the handle has an internal cavity. A fixing structure for fixing the cover plate is provided in the cavity. The fixing structure includes an insertion rod and a pressing rod. The top end of the insertion rod is located in the cavity and is fixedly connected to the inner top wall of the cavity with a spring. The bottom end of the insertion rod slides through the handle and the cover plate and is inserted into the insertion hole. One end of the pressing rod is located outside the handle, and the other end of the pressing rod slides through the cavity and is connected to the insertion rod with a force transmission component. The force transmission component is used to transmit the pressure on the pressing rod to the insertion rod and change the direction of the force to move the insertion rod upward.

[0016] By adopting the above technical solution, when the cover plate is closed at the opening of the receiving groove, the insert rod is inserted into the insertion hole, thereby fixing the cover plate, improving its stability, and preventing the cover plate from opening automatically during ladder movement. When it is necessary to open the cover plate, press the pressing rod while holding the handle. The pressing rod moves into the cavity, and the force transmission component generates an upward force on the insert rod. Under the action of this force, the insert rod moves upward and is pulled out of the insertion hole, and the spring is compressed to generate a downward rebound force. When the insert rod is completely pulled out of the insertion hole, the cover plate can be opened by rotating the handle. After the cover plate is opened, release the pressing rod. Under the action of the spring's rebound force, the bottom end of the insert rod abuts against the top of the tool box, and friction is generated between the insert rod and the tool box. The rebound force generated by the deformation of the coil spring is greater than the friction between the insert rod and the tool box. Therefore, the insert rod also acts as a damper at this time, and the cover plate can slowly rotate back to its original position, avoiding the situation of pinching hands due to the cover plate rotating back to its original position too quickly.

[0017] A further feature of this invention is that a pressing plate is fixed to one end of the pressing rod located outside the handle.

[0018] By adopting the above technical solution, the setting of the pressing plate increases the force-bearing area of ​​the pressing rod, thereby improving the comfort when pressing the pressing rod.

[0019] A further feature of this invention is that the force transmission assembly includes a pressing block and a sliding block. The sliding block is located inside the cavity and is fixedly sleeved on the outside of the insert rod. The bottom end of the sliding block is provided with a first inclined surface. The pressing block is located inside the cavity and is fixedly connected to one end of the pressing rod that passes through the cavity. The top end of the pressing block is provided with a second inclined surface that matches the first inclined surface.

[0020] By adopting the above technical solution, after pressing the pressing rod, the squeezing block moves towards the sliding block. The second inclined surface presses against the first inclined surface, and the pressure on the first inclined surface can be decomposed into an upward force. Under the action of this force, the sliding block moves upward. The sliding block drives the insert rod to move upward.

[0021] Further features of this invention: The force transmission assembly includes a toggle block, a rotating plate, and two locking blocks. Both locking blocks are fixedly sleeved on the outside of the insert rod with a gap between them. The rotating plate is located inside the cavity. The bottom end of the rotating plate is fixedly connected to one end of the pressing rod that passes through the cavity. The top end of the rotating plate is rotatably connected to the cavity wall through a pin. One end of the toggle block is fixedly connected to the rotating plate, and the other end of the toggle block is inserted into the gap in a mating connection manner.

[0022] By adopting the above technical solution, after pressing the pressing rod, the rotating plate rotates upward, and the rotating plate drives the actuating block to rotate upward. The actuating block presses upward against the locking block located above, and the locking block moves upward, thereby driving the insertion rod to move upward.

[0023] Compared with the prior art, the beneficial effects of this utility model are: after the cover is opened, the cover can automatically reset and close, preventing tools from falling out of the tool box when the ladder is moved due to forgetting to close the cover. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a cross-sectional view of the toolbox in Embodiment 1;

[0027] Figure 4 for Figure 3 Enlarged view of point C in the middle;

[0028] Figure 5 for Figure 3 Enlarged view of point D in the middle;

[0029] Figure 6 This is a schematic diagram of the structure of the insert rod, spring, pressing block, sliding block and pressing rod in Embodiment 1;

[0030] Figure 7 This is a schematic diagram of the structure of the insert rod, spring, toggle block, rotating plate, locking block, and pressing rod in Embodiment 2.

[0031] In the diagram: 1. Ladder body; 2. Tool box; 3. Receiving slot; 4. Insertion hole; 5. Cover plate; 6. Upright plate; 7. Top plate; 8. Rotating plate; 9. Shaft; 10. Base block; 11. Coil spring; 12. Fixing block; 13. Inner cavity; 14. Handle; 15. Hollow cavity; 16. Insert rod; 17. Pressing rod; 18. Spring; 19. Pressing plate; 20. Squeezing block; 21. Sliding block; 22. Temporary placement slot; 23. Actuating block; 24. Rotating plate; 25. Locking block. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1:

[0034] A ladder with a toolbox, such as Figures 1-6 As shown, the device includes a ladder body 1 and a toolbox 2 mounted on the top of the ladder body 1. The top of the toolbox 2 has a receiving groove 3 and an insertion hole 4. Each groove of the receiving groove 3 is covered by a cover plate 5.

[0035] A self-resetting structure connects the cover plate 5 and the toolbox 2. The self-resetting structure includes a vertical plate 6, a top plate 7, a rotating plate 8, a shaft 9, a bottom block 10, and a coil spring 11. The vertical plate 6 is fixed to the top of the toolbox 2. The top plate 7 is fixed to the top of the vertical plate 6. The shaft 9 is fixedly connected between the top plate 7 and the toolbox 2. A fixing block 12 is fixed to the outer wall of the shaft 9. One end of the rotating plate 8 is rotatably sleeved on the outside of the shaft 9 via a bearing. The other end of the rotating plate 8 is fixedly connected to the cover plate 5. The bottom block 10 is fixed to the bottom end of the rotating plate 8 and rotatably sleeved on the outside of the shaft 9. An inner cavity 13 is provided inside the bottom block 10 for the fixing block 12 to be inserted. The coil spring 11 is installed inside the inner cavity 13. One end of the coil spring 11 is fixedly connected to the fixing block 12. The other end of the coil spring 11 is fixedly connected to the cavity wall of the inner cavity 13.

[0036] A handle 14 is fixed to the top of the cover plate 5. A cavity 15 is formed inside the handle 14. A fixing structure for fixing the cover plate 5 is provided inside the cavity 15. The fixing structure includes an insertion rod 16 and a pressing rod 17. The top end of the insertion rod 16 is located inside the cavity 15 and is fixedly connected to the inner top wall of the cavity 15 by a spring 18. The bottom end of the insertion rod 16 slides out of the handle 14, passes through the cover plate 5, and is inserted into the insertion hole 4. One end of the pressing rod 17 is located outside the handle 14 and is fixed with a pressing plate 19. The other end of the pressing rod 17 slides into the cavity 15 and is connected to the insertion rod 16 by a force transmission component. The force transmission component is used to transmit the pressure on the pressing rod 17 to the insertion rod 16 and change the direction of the force to move the insertion rod 16 upward.

[0037] The force transmission assembly includes a pressing block 20 and a sliding block 21. The sliding block 21 is located inside the cavity 15 and is fixedly sleeved on the outside of the insert rod 16. The bottom end of the sliding block 21 is provided with a first inclined surface. The pressing block 20 is located inside the cavity 15 and is fixedly connected to one end of the pressing rod 17 that passes through the cavity 15. The top end of the pressing block 20 is provided with a second inclined surface that matches the first inclined surface.

[0038] Additionally, a temporary storage slot 22 is provided at the top of the toolbox 2. After opening the cover 5, tools can be taken out from the receiving slot 3 according to the required quantity and placed into the temporary storage slot 22 without repeatedly opening and closing the cover 5.

[0039] Working principle:

[0040] When the cover plate 5 is closed at the opening of the receiving groove 3, the insertion rod 16 is inserted into the insertion hole 4, thereby fixing the cover plate 5, improving the stability of the cover plate 5, and preventing the cover plate 5 from opening automatically during the process of moving the ladder.

[0041] When it is necessary to open the cover 5, press the pressing rod 17 while holding the handle 14. The pressing rod 17 moves into the cavity 15, and the pressing rod 17 drives the pressing block 20 to move towards the sliding block 21. The second inclined surface presses against the first inclined surface, and the pressure on the first inclined surface can be decomposed into an upward force. Under the action of this force, the sliding block 21 moves upward. The sliding block 21 drives the insertion rod 16 to move upward and be pulled out of the insertion hole 4, and the spring 18 is compressed to form a downward rebound force. When the insertion rod 16 is completely pulled out of the insertion hole 4, the cover 5 can be opened by rotating the handle 14. Then, the user rotates the cover 5, and the cover 5 drives the rotating plate 8 to rotate around the shaft 9. The rotating plate 8 drives the bottom block 10 to rotate around the shaft 9. Since the fixing block 12 fixed on the shaft 9 does not rotate, the rotation of the bottom block 10 causes the coil spring 11 to be stretched to form a rebound force for driving the bottom block 10 to rotate back to its original position.

[0042] After the cover plate 5 is rotated open, release the pressing rod 17. Under the rebound force of the spring 18, the bottom end of the insertion rod 16 abuts against the top of the tool box 2, and friction is formed between the insertion rod 16 and the tool box 2. The rebound force generated by the deformation of the coil spring 11 is greater than the friction between the insertion rod 16 and the tool box 2. Therefore, the insertion rod 16 also acts as a damper at this time, and the cover plate 5 can slowly rotate back to close the opening of the receiving groove 3, avoiding the situation of pinching the hand due to the excessive speed of the cover plate 5 rotating back.

[0043] After the cover plate 5 is opened, the cover plate 5 can automatically reset and close, preventing tools from falling out of the tool box 2 when the ladder is moved because the cover plate 5 is forgotten to be closed.

[0044] Example 2:

[0045] The difference from Embodiment 1 is that the force transmission assembly no longer includes the pressing block 20 and the sliding block 21. Instead, it is as follows: Figure 7 As shown, the device includes an actuating block 23, a rotating plate 24, and two locking blocks 25. Both locking blocks 25 are fixedly fitted onto the outside of the insert rod 16 with a gap between them. The rotating plate 24 is located inside the cavity 15. The bottom end of the rotating plate 24 is fixedly connected to one end of the pressing rod 17 that passes through the cavity 15. The top end of the rotating plate 24 is rotatably connected to the cavity wall of the cavity 15 via a pin. One end of the actuating block 23 is fixedly connected to the rotating plate 24. The other end of the actuating block 23 is inserted into the gap in a mating connection manner.

[0046] After pressing the pressing lever 17, the rotating plate 24 rotates upward, which in turn drives the actuating block 23 to rotate upward. The actuating block 23 presses upward against the upper locking block 25, which moves upward, thereby driving the insertion rod 16 to move upward.

[0047] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this invention can be purchased commercially, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ladder with a toolbox, comprising a ladder body (1) and a toolbox (2) mounted on the top of the ladder body (1), wherein the top of the toolbox (2) is provided with a plurality of receiving slots (3), and each of the slots (3) is covered by a cover plate (5), characterized in that: A self-resetting structure is connected between the cover plate (5) and the toolbox (2). The self-resetting structure includes a vertical plate (6), a top plate (7), a rotating plate (8), a shaft (9), a bottom block (10), and a coil spring (11). The vertical plate (6) is fixed to the top of the toolbox (2), the top plate (7) is fixed to the top of the vertical plate (6), the shaft (9) is fixedly connected between the top plate (7) and the toolbox (2), and a fixing block (12) is fixed on the outer side wall of the shaft (9). One end of the rotating plate (8) is connected by a bearing. The rotating plate (8) is rotatably sleeved on the outside of the shaft (9), and the other end of the rotating plate (8) is fixedly connected to the cover plate (5). The bottom block (10) is fixed to the bottom end of the rotating plate (8) and rotatably sleeved on the outside of the shaft (9). The bottom block (10) has an inner cavity (13) for the fixing block (12) to be inserted. The coil spring (11) is installed inside the inner cavity (13). One end of the coil spring (11) is fixedly connected to the fixing block (12), and the other end of the coil spring (11) is fixedly connected to the cavity wall of the inner cavity (13).

2. The ladder with a toolbox according to claim 1, characterized in that: The toolbox (2) also has a temporary placement slot (22) at its top.

3. The ladder with a toolbox according to claim 1, characterized in that: A handle (14) is fixed to the top of the cover plate (5).

4. A ladder with a toolbox according to claim 3, characterized in that: The toolbox (2) has a corresponding insertion hole (4) at its top, and the handle (14) has a cavity (15) inside. The cavity (15) has a fixing structure for fixing the cover plate (5). The fixing structure includes a plug (16) and a pressing rod (17). The top of the plug (16) is located inside the cavity (15) and a spring (18) is fixedly connected between it and the inner top wall of the cavity (15). The bottom of the plug (16) The end of the push rod (17) extends out of the handle (14) and through the cover plate (5) and is inserted into the socket (4) in a sliding connection manner. One end of the push rod (17) is located outside the handle (14), and the other end of the push rod (17) extends into the cavity (15) in a sliding connection manner and a force transmission component is provided between it and the plug rod (16). The force transmission component is used to transmit the pressure on the push rod (17) to the plug rod (16) and change the direction of the force to make the plug rod (16) move upward.

5. A ladder with a toolbox according to claim 4, characterized in that: A pressing plate (19) is fixed to one end of the pressing rod (17) located outside the handle (14).

6. A ladder with a toolbox according to claim 4, characterized in that: The force transmission assembly includes a pressing block (20) and a sliding block (21). The sliding block (21) is located inside the cavity (15) and is fixedly sleeved on the outside of the insert rod (16). The bottom end of the sliding block (21) is provided with a first inclined surface. The pressing block (20) is located inside the cavity (15) and is fixedly connected to one end of the pressing rod (17) that passes through the cavity (15). The top end of the pressing block (20) is provided with a second inclined surface that matches the first inclined surface.

7. A ladder with a toolbox according to claim 4, characterized in that: The force transmission assembly includes a toggle block (23), a rotating plate (24), and two locking blocks (25). The two locking blocks (25) are fixedly sleeved on the outside of the insert rod (16) with a gap between them. The rotating plate (24) is located in the cavity (15). The bottom end of the rotating plate (24) is fixedly connected to one end of the pressing rod (17) that passes into the cavity (15). The top end of the rotating plate (24) is rotatably connected to the cavity wall of the cavity (15) through a pin. One end of the toggle block (23) is fixedly connected to the rotating plate (24), and the other end of the toggle block (23) is inserted into the gap in a mating connection manner.

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