Tool car with drawer self-locking function

By designing a combination of a sloping trough block at the bottom of the material hopper and a self-locking limiting component on the tool cart, the complex problems of hopper sliding out and locking are solved, realizing automatic self-locking and stability of the hopper, and improving safety and operational efficiency.

CN224266167UActive Publication Date: 2026-05-22SUZHOU GOLDENLINE MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU GOLDENLINE MASCH CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-22

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Abstract

The tool car with the drawer self-locking function comprises a tool car, and a material hopper and a self-locking limiting assembly are arranged in a cavity of the tool car. Inclined groove blocks are arranged on extending bottom plates on the two sides of the bottom of the material hopper; the self-locking limiting assembly comprises a U-shaped frame, the U-shaped frame penetrates through the top of the tool trolley, the middle of the U-shaped frame is connected with the top of the tool trolley through a spring, U-shaped abutting blocks are arranged on the left side and the right side of the lower portion of the U-shaped frame, inclined faces are arranged on the bottom end sides of the left U-shaped abutting block and the right U-shaped abutting block, and the inclined faces are matched with inclined groove blocks. And through the structural design that a chute block at the bottom of the material hopper is matched with a slope at the bottom end of a U-shaped abutting block in the self-locking limiting assembly, the automatic self-locking function of the material hopper can be achieved. When the material hopper is pushed into the tool car, a self-locking mechanism can be triggered, the material hopper is effectively prevented from automatically sliding out under the conditions that the tool car is collided, vibrated or in an inclined environment and the like, and the safety of materials and tools stored in the tool car is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of tool cart technology, and in particular to a tool cart with a self-locking drawer. Background Technology

[0002] In machining, maintenance, and other work scenarios, tool carts are commonly used equipment for storing and transporting various tools and parts.

[0003] Currently, most existing tool cart drawers use a simple sliding rail structure, which has many problems during use. When the tool cart is subjected to collision, vibration, or moves in an inclined environment, the drawer is prone to sliding out on its own, causing the materials stored inside to spill, tools to be damaged, and even potentially causing injury to people around. At the same time, the existing drawer locking structure is either complicated to operate, requiring additional manual operation to lock and unlock, which reduces work efficiency.

[0004] Therefore, we provide a tool cart with a self-locking drawer. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a tool cart with a self-locking drawer, thus solving the problems of existing tool carts having drawers that are prone to accidental slippage, and locking structures that are complex to operate or have poor effectiveness.

[0006] In view of this, the present invention provides a tool cart with a self-locking drawer, including a tool cart, wherein the tool cart cavity is provided with a material hopper and a self-locking limiting component;

[0007] Inclined groove blocks are provided on the bottom plates extending on both sides of the bottom of the material hopper;

[0008] The self-locking limiting component includes a U-shaped frame that passes through the top of the tooling vehicle, and the middle part of the U-shaped frame is connected to the top of the tooling vehicle by a spring. U-shaped blocks are provided on the left and right sides below the U-shaped frame, and the bottom ends of the two sets of U-shaped blocks are provided with inclined surfaces. The inclined surfaces are adapted to the inclined trough blocks to realize the self-locking of the material hopper.

[0009] Preferably, the lateral spacing between the two sets of U-shaped blocks on the left and right sides matches the lateral spacing of the outer edges of the inclined trough blocks on both sides of the bottom of the material hopper.

[0010] Preferably, the lower ends of the U-shaped frame are provided with connecting plates on both sides, and the U-shaped abutment is detachably installed at the lower end of the connecting plate with bolts. The bottom of the inclined trough block has a reserved positioning area, and the inclined trough block is installed on the extended bottom plate of the material hopper through the reserved positioning area at the bottom.

[0011] Preferably, the spring is provided with mounting holes at both the upper and lower ends, and the spring is installed between the U-shaped frame and the top of the tooling vehicle through the mounting holes.

[0012] Preferably, the tooling vehicle is provided with two sets of guide pillars on the top, and the two sets of guide pillars pass through both sides of the U-shaped frame respectively.

[0013] Preferably, the two sets of guide posts are threaded at both ends, the two sets of guide posts are spirally installed on the top of the tooling vehicle, and caps are also fitted on the top of the two sets of guide posts.

[0014] Preferably, the tooling carriage has a pre-drilled slot on its top, and the cap engages within the slot of the tooling carriage.

[0015] Compared with the prior art, this utility model provides a tool cart with a self-locking drawer, which has the following advantages:

[0016] This invention achieves an automatic self-locking function for the material hopper by matching the inclined groove block at the bottom of the hopper with the inclined surface at the bottom of the U-shaped stop block in the self-locking limiting component. When the material hopper is pushed into the tooling cart, the self-locking mechanism is triggered, effectively preventing the material hopper from sliding out on its own when the tooling cart is subjected to collisions, vibrations, or is in an inclined environment, thus ensuring the safety of the materials and tools stored inside.

[0017] In this invention, the U-shaped blocks on both sides of the lower end of the U-shaped frame are detachably installed on the lower end of the connecting plate using bolts. This makes it easy to disassemble and replace the U-shaped blocks when they are worn or damaged, reducing maintenance costs and difficulty. At the same time, the inclined trough block is installed on the extended bottom plate of the material hopper through the positioning area reserved at the bottom, which facilitates the installation and positioning of the inclined trough block and ensures the stability and accuracy of the structure.

[0018] This utility model features two sets of guide pillars on the top of the tool cart, which pass through both sides of the U-shaped frame. The guide pillars are threaded at both ends and are spirally installed on the top of the tool cart. A cap is also provided on top, which engages in a slot on the top of the tool cart. This design enables precise guidance and limiting of the movement of the U-shaped frame, improving the stability and accuracy of the entire tool cart's self-locking system.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is an overall drawing of a tool cart with a drawer self-locking mechanism proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the material hopper locking mechanism of a tool cart with a self-locking drawer, as proposed in this utility model.

[0022] Figure 3This is a schematic diagram of the self-locking limiting component structure of a tool cart with a drawer self-locking mechanism proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the inclined block installation structure of a tool cart with a self-locking drawer, as proposed in this utility model.

[0024] In the diagram: 1. Tooling cart; 2. Material hopper; 21. Extended base plate; 22. Inclined chute block; 221. Positioning area; 3. Self-locking limit assembly; 31. U-shaped frame; 311. Connecting plate; 32. U-shaped stop block; 321. Inclined surface; 33. Spring; 331. Assembly hole block; 4. Guide post; 41. Thread; 5. Cap. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0027] Example 1: A tool cart with a self-locking drawer, such as Figures 1-4 As shown, the tooling includes a tooling carriage 1, a material hopper 2 and a self-locking limiting component 3 are provided inside the cavity of the tooling carriage 1; inclined groove blocks 22 are provided on the bottom plates 21 extending on both sides of the bottom of the material hopper 2; the self-locking limiting component 3 includes a U-shaped frame 31, which passes through the top of the tooling carriage 1, and the middle part of the U-shaped frame 31 is connected to the top of the tooling carriage 1 by a spring 33. U-shaped blocks 32 are provided on the left and right sides below the U-shaped frame 31, and inclined surfaces 321 are provided on the bottom sides of the two sets of U-shaped blocks 32. The inclined surfaces 321 are adapted to the inclined groove blocks 22 to realize the self-locking of the material hopper 2.

[0028] When the material hopper 2 needs to be pushed into the cavity of the tooling carriage 1, the operator holds the material hopper 2, aligns it with the entrance of the tooling carriage 1, and pushes it in along the slide rail of the tooling carriage 1. During the pushing process, the inclined groove blocks 22 on the bottom plates 21 on both sides of the bottom of the material hopper 2 begin to contact the U-shaped blocks 32 on the left and right sides below the U-shaped frame 31. The surface of the inclined groove block 22 is in contact with the inclined surface 321 on the bottom side of the U-shaped block 32. As the material hopper 2 continues to be pushed in, the inclined groove block 22 applies an upward pushing force to the inclined surface 321 of the U-shaped block 32. This pushing force causes the U-shaped frame 31 to move upward against the elastic force of the spring 33, and the spring 33 is compressed. When the material hopper 2 is fully pushed into place, the inclined groove block 22 moves. When the U-shaped block 32 reaches the locking position corresponding to the U-shaped block 32, the U-shaped block 32 moves downward under the elastic force of the spring 33. The bottom end of the U-shaped block 32 is inserted into the inclined groove block 22. The lateral distance between the two sets of U-shaped blocks 32 on the left and right is matched with the lateral distance of the outer edge of the inclined groove block 22 on both sides of the bottom of the material hopper 2, so as to achieve precise locking and complete the self-locking of the material hopper 2. When the material hopper 2 needs to be removed, the operator pulls the U-shaped frame 31 upward. The U-shaped frame 31 overcomes the elastic force of the spring 33 and moves upward, driving the U-shaped block 32 to rise together, so that the U-shaped block 32 is released from the inclined groove block 22. At this time, the material hopper 2 loses the locking restriction, and the operator can easily pull the material hopper 2 out of the cavity of the tooling car 1 along the slide rail direction.

[0029] like Figures 1-4 As shown, the lateral spacing between the two sets of U-shaped blocks 32 on the left and right is matched with the lateral spacing of the outer edges of the inclined trough blocks 22 on both sides of the bottom of the material hopper 2. When the material hopper 2 is pushed into the cavity of the tooling car 1, the U-shaped blocks 32 can accurately cooperate with the inclined trough blocks 22. Due to the matching spacing, the U-shaped blocks 32 can be smoothly inserted into the inclined trough blocks 22 to form an effective locking structure.

[0030] like Figures 1-4 As shown, the U-shaped frame 31 is also provided with connecting plates 311 on both sides of the lower end. The U-shaped abutment 32 is installed at the lower end of the connecting plate 311 in a detachable manner with bolts. The bottom of the inclined trough block 22 has a reserved positioning area 221. The inclined trough block 22 is installed on the extended bottom plate 21 of the material hopper 2 through the reserved positioning area 221 at the bottom.

[0031] The U-shaped stop 32 is detachably connected to the connecting plate 311 by bolts. When the U-shaped stop 32 is worn or damaged, the staff only needs to unscrew the bolts to quickly disassemble and replace it with a new part without replacing the entire self-locking limit assembly 3, which greatly reduces maintenance costs and difficulty. Similarly, the inclined chute block 22 is installed on the extended bottom plate 21 of the material hopper 2 through the positioning area 221, which also facilitates the installation and disassembly of the inclined chute block 22. If the material hopper 2 is damaged or the inclined chute block 22 needs to be replaced, the operation process is simple and convenient, which improves the maintenance efficiency of the tooling cart 1.

[0032] like Figures 1-4 As shown, the spring 33 has mounting holes 331 at both the upper and lower ends. The spring 33 is installed between the U-shaped frame 31 and the top of the tooling carriage 1 through the mounting holes 331. Since the spring 33 needs to be replaced regularly after long-term use, the mounting holes 331 and the fastening bolts can facilitate the subsequent replacement of the spring 33.

[0033] Example 2: A tool cart with a self-locking drawer, such as Figures 1-4 As shown, the tooling vehicle 1 has two sets of guide pillars 4 on its top, and the two sets of guide pillars 4 pass through both sides of the U-shaped frame 31 respectively.

[0034] The two sets of guide pillars 4 are provided with threads 41 at both ends. The two sets of guide pillars 4 are installed on the top of the tooling car 1 in a spiral manner. In addition, caps 5 are also provided on the top of the two sets of guide pillars 4.

[0035] The top of the tooling carriage 1 has a pre-drilled slot, and the cap 5 is engaged in the slot of the tooling carriage 1.

[0036] In use, the guide column 4 runs through both sides of the U-shaped frame 31, which can guide the U-shaped frame 31 to move up and down on the top of the tooling carriage 1, ensuring the accuracy of its movement trajectory. After the material hopper 2 is placed, the cap 5 is installed on the guide column 4 in a spiral manner to ensure that the guide column 4 is fixed in the position on the top of the tooling carriage 1, and also to prevent the U-shaped frame 31 from shifting up and down, further improving the stability and reliability of the entire structure.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tool cart with a self-locking drawer, comprising a tooling cart (1), wherein the tooling cart (1) has a material hopper (2) and a self-locking limiting component (3) inside its cavity, characterized in that: The bottom plates (21) on both sides of the bottom of the material hopper (2) are provided with inclined trough blocks (22); The self-locking limiting component (3) includes a U-shaped frame (31), which passes through the top of the tooling car (1), and the middle part of the U-shaped frame (31) is connected to the top of the tooling car (1) by a spring (33). U-shaped blocks (32) are provided on the left and right sides below the U-shaped frame (31). The bottom ends of the two sets of U-shaped blocks (32) are provided with inclined surfaces (321). The inclined surfaces (321) are adapted to the inclined trough block (22) to realize the self-locking of the material hopper (2).

2. A tool cart with a self-locking drawer according to claim 1, characterized in that, The lateral spacing between the two sets of U-shaped blocks (32) is matched with the lateral spacing of the outer edges of the inclined trough blocks (22) on both sides of the bottom of the material hopper (2).

3. A tool cart with a self-locking drawer according to claim 1, characterized in that, The U-shaped frame (31) is also provided with connecting plates (311) on both sides of the lower end. The U-shaped abutment (32) is installed at the lower end of the connecting plate (311) in a detachable manner with bolts. The bottom of the inclined trough block (22) has a reserved positioning area (221). The inclined trough block (22) is installed on the extended bottom plate (21) of the material hopper (2) through the reserved positioning area (221) at the bottom.

4. A tool cart with a self-locking drawer according to claim 1, characterized in that, The spring (33) is provided with mounting holes (331) at both the upper and lower ends. The spring (33) is installed between the U-shaped frame (31) and the top of the tooling car (1) through the mounting holes (331).

5. A tool cart with a self-locking drawer according to claim 1, characterized in that, The tooling vehicle (1) is equipped with two sets of guide pillars (4) on the top, and the two sets of guide pillars (4) pass through both sides of the U-shaped frame (31).

6. A tool cart with a self-locking drawer according to claim 5, characterized in that, The two sets of guide posts (4) are provided with threads (41) at both ends. The two sets of guide posts (4) are installed on the top of the tooling car (1) in a spiral manner. In addition, caps (5) are also provided on the top of the two sets of guide posts (4).

7. A tool cart with a self-locking drawer according to claim 6, characterized in that, The tooling carriage (1) has a pre-reserved slot on its top, and the cap (5) is engaged in the slot of the tooling carriage (1).