Tool car with good stability

Abstract

The utility model relates to a tool car with good stability, which comprises a support frame, a plurality of partition plates for placing tools are arranged on the support frame at intervals from top to bottom, the partition plates at the bottom of the support frame are thickened, support legs are arranged at four corners of the bottom of the thickened partition plates, and universal wheels are connected to the bottoms of the support legs. Tension assemblies are arranged between the supporting legs and the partition plates. The utility model relates to the technical field of tool cars. According to the tool car with the good stability, by arranging the supporting legs, when tools are placed on the partition plate of the tool car, the supporting legs can be opened through the weight of the tools, the gravity center of the tool car is lowered, meanwhile, a larger supporting face is obtained, and the use stability of the tool car can be effectively improved; and the tool car is prevented from toppling over due to overhigh gravity center in the moving process, so that the practicability of the tool car is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool carts, in particular to a tool cart with good stability. Background Technique

[0002] In life, we often use various tools. However, these scattered tools are placed in a mess and are very difficult to find. Therefore, people like to store these tools. Tool cabinets and tool carts are suitable for the fixed-position management of tools, cutting tools, and parts in the production site. A tool cart is a movable tool cabinet, which is suitable for safely and reasonably transporting tools and accessories in the production site.

[0003] In the prior art, since tools are placed on the partition when the tool cart is in use, and the tools have weight, the heavier the tools placed on the higher partition, the more the center of gravity of the tool cart will shift upwards. As a result, the tool cart is extremely prone to tipping due to unstable center of gravity during use, affecting the use stability of the tool cart and the protection performance of the tool cart for tools. Content of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a tool cart with good stability, so as to solve the technical problems mentioned in the above background technique.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A tool cart with good stability includes a support frame. A plurality of partitions for placing tools are arranged at intervals from top to bottom on the support frame. The bottom partition of the support frame is thickened. Legs are arranged at the four corners of the bottom of the thickened partition. Universal wheels are connected to the bottoms of the legs. A tension assembly is arranged between the legs and the partition.

[0007] Furthermore, the leg is mainly composed of a U-shaped bracket and a connecting rod. The top of the U-shaped bracket is fixedly connected to the partition. A connecting rod is rotatably connected inside the U-shaped bracket. A limiting block for restricting the rotation of the connecting rod is fixedly connected to one side of the inner side wall of the U-shaped bracket close to the middle of the partition.

[0008] Furthermore, an angle between the rotation axis of the connecting rod and the long side of the partition is between 0 degree and 45 degrees, so that the U-shaped bracket is inclined at the bottom of the partition.

[0009] Furthermore, a pressing part is formed by a bottom protrusion on one side of the limiting block close to the connecting rod. When the connecting rod retracts into the U-shaped bracket, the included angle between the connecting rod and the partition is between 80 degrees and 90 degrees.

[0010] Further, the tension assembly includes a tension spring and a pneumatic cylinder. The bottom of the cylinder body of the pneumatic cylinder is hinged to the bottom of the partition board. The top of the output shaft of the pneumatic cylinder is hinged to the outer side wall of the connecting rod. Ring-shaped portions are formed by protrusions at the bottom of the cylinder body and the top of the output shaft of the pneumatic cylinder. A tension spring is fixedly connected between the two ring-shaped portions.

[0011] Further, the inner diameter of the tension spring is larger than the outer diameter of the cylinder body of the pneumatic cylinder, so that the tension spring is sleeved on the outside of the pneumatic cylinder.

[0012] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0013] 1. For this tool cart with good stability, by providing the support legs, when tools are placed on the partition board of the tool cart, the weight of the tools can be used to open the support legs, reducing the center of gravity of the tool cart while obtaining a larger support surface, effectively improving the use stability of the tool cart, avoiding the tool cart from tipping over during movement due to too high a center of gravity, and thus enhancing the practicality of the tool cart.

[0014] 2. For this tool cart with good stability, by providing the tension assembly, it can provide tension to the support legs, enabling the support legs to automatically adjust the opening amplitude according to the weight of the tools placed on the tool cart, automatically adjusting the center of gravity of the tool cart while ensuring the movement stability of the tool cart, and thus further enhancing the practicality of the tool cart. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of a tool cart with good stability of the present utility model.

[0017] Figure 2 It is a schematic bottom structural diagram of a tool cart with good stability of the present utility model.

[0018] Figure 3 It is a schematic structural diagram of a tool cart with good stability of the present utility model when placing heavy objects.

[0019] Figure 4 It is a bottom view of a tool cart with good stability of the present utility model.

[0020] Figure 5 It is a schematic internal structural diagram of the support legs in a tool cart with good stability of the present utility model.

[0021] In the figure, 1 is a support frame; 2 is a partition board; 3 is a leg; 31 is a U-shaped bracket; 32 is a connecting rod; 4 is a universal wheel; 5 is a tension assembly; 51 is a tension spring; 52 is a pneumatic cylinder; 6 is a limit block; 7 is an extrusion part; 8 is an annular part. Specific embodiments

[0022] The following further describes the present utility model in detail with reference to the accompanying drawings.

[0023] Embodiment:

[0024] Referring to Figure 1 - Figure 5 , a tool cart with good stability disclosed by the present utility model includes a support frame 1. A plurality of partition boards 2 for placing tools are arranged at intervals from top to bottom on the support frame 1. The bottom partition board 2 of the support frame 1 is thickened. Legs 3 are arranged at the four corners of the bottom of the thickened partition board 2. Universal wheels 4 are connected to the bottoms of the legs 3. A tension assembly 5 is arranged between the legs 3 and the partition board 2.

[0025] In this embodiment, during the use of the tool cart, different tools are placed on the partition boards of different layers, which will cause the weight of the tool cart to increase, resulting in the center of the tool cart being shifted upwards, and the tool cart may tip over due to unstable center of gravity during movement.

[0026] Therefore, it can be observed Figure 1 that a plurality of partition boards 2 are arranged at intervals on the support frame 1, and the bottom partition board 2 is thickened, so that the center of gravity of the tool cart is biased downward, and the upward deviation amplitude of the center of gravity when the tool cart is loaded with tools is reduced, improving the stability of the tool cart.

[0027] Subsequently, it can be observed Figure 3 that legs 3 are fixedly connected to the bottom of the bottom partition board 2, and a tension assembly 5 is arranged between the legs 3 and the partition board 2. When the tool cart is unloaded, the legs 3 are normally supported as shown Figure 1 . As the number of tools placed on the tool cart increases, the weight borne by the tool cart increases, and the pressure exerted by the tool cart on the legs 3 will gradually increase, causing the legs 3 to open under pressure, which can be used to expand the support surface of the legs 3, increasing the support force provided by the legs 3, and further improving the stability of the tool cart.

[0028] As more tools are placed on the tool cart, the opening amplitude of the legs 3 becomes larger, resulting in an increase in the inclination angle of the legs 3, which causes the heights of the support frame 1 and the partition board 2 to decrease, reducing the overall center of gravity of the tool cart and further improving the stability of the tool cart.

[0029] In a further preferred embodiment of the present utility model, asFigure 5 As shown, the outrigger 3 is mainly composed of a U-shaped bracket 31 and a connecting rod 32. The top of the U-shaped bracket 31 is fixedly connected to the partition plate 2. A connecting rod 32 is rotatably connected inside the U-shaped bracket 31. A limiting block 6 for restricting the rotation of the connecting rod 32 is fixedly connected to one side of the inner side wall of the U-shaped bracket 31 close to the middle of the partition plate 2.

[0030] In this embodiment, since the tool cart needs to use the weight of the tool to open the outrigger 3 to enhance the stability of the tool cart when carrying tools, it is necessary to make the outrigger 3 rotatable relative to the partition plate 2. Therefore, observing Figure 5 it can be found that a U-shaped bracket 31 is provided at the bottom of the partition plate 2, and a connecting rod 32 is rotatably connected inside the U-shaped bracket 31, which can make the outrigger 3 movable, achieving the effect that the outrigger 3 automatically opens under the extrusion of the tool weight to improve the stability of the tool cart.

[0031] Since the connecting rod 32 is connected to the tension assembly 5, when the tool cart is unloaded, the connecting rod 32 is pulled by the tension assembly 5 and biased towards the inner side of the partition plate 2. When tools are placed on the tool cart, when the outrigger 3 is squeezed and rotates, the supporting area formed by the outrigger 3 will be reduced, making the tool cart more unstable. Therefore, observing Figure 5 it can be found that a limiting block 6 is fixedly connected to one side of the U-shaped bracket 31 close to the middle of the partition plate 2. The limiting block 6 is used to block the connecting rod 32 from moving towards the middle of the partition plate 2, so as to prevent the outrigger 3 from shifting inwards under the pull of the tension assembly 5 and affecting the stability of the tool cart.

[0032] In a further preferred embodiment of the present utility model, as Figure 2 - Figure 4 shown, an included angle between 0 degrees and 45 degrees is provided between the rotation axis of the connecting rod 32 and the long side of the partition plate 2, so that the U-shaped bracket 31 is inclined at the bottom of the partition plate 2.

[0033] In this embodiment, since the partition plate 2 of the tool cart is mostly rectangular, and the outriggers 3 are arranged at the four corners of the bottom of the tool cart, the support spacing of the wide side of the tool cart is smaller than the support spacing of the long side. The stability of the wide side of the tool cart is inferior to that of the long side, making the tool cart easier to tip over along the wide side.

[0034] Therefore, observing Figure 4 as shown by A in, an included angle is provided between the rotation axis of the connecting rod 32 and the long side of the partition plate 2, so that when the connecting rod 32 is pressed, it opens in a direction perpendicular to the rotation axis, allowing the connecting rod 32 to increase both the wide side support spacing and the long side support spacing when opening, thereby further improving the moving stability of the tool cart.

[0035] When A is close to 0 degrees, the opening direction of the connecting rod 32 is close to the long side of the vertical partition 2, maximizing the increase in the support spacing of the short side, and significantly improving the support stability of the short side of the tool cart; when A is close to 45 degrees, the opening direction of the connecting rod 32 approaches 135 degrees, making the increase in the support spacing of the wide side of the tool cart the same as that of the long side, synchronously increasing the support stability of the wide side and the long side of the tool cart, and improving the overall stability of the tool cart; when A is greater than 45 degrees, the increase in the support spacing of the long side of the tool cart when the connecting rod 32 opens will be greater than the increase in the short side spacing of the tool cart, providing more support to the long side of the tool cart, which already has better anti-tilting performance, and less support to the short side, which has worse anti-tilting effect, resulting in a worse stability effect provided by the leg 3. Therefore, when the angle of A is between 0 degrees and 45 degrees, the leg 3 can provide the best support effect for the tool cart.

[0036] In a further preferred embodiment of the present utility model, as Figure 5 shown, a pressing portion 7 is formed by a bottom protrusion on one side of the limiting block 6 close to the connecting rod 32. When the connecting rod 32 retracts into the U-shaped bracket 31, the included angle between the connecting rod 32 and the partition 2 is between 80 degrees and 90 degrees.

[0037] In this embodiment, by providing the pressing portion 7 on the limiting block 6, when the connecting rod 32 is pulled back under the action of the tension assembly 5, it is blocked by the pressing portion 7 and cannot be fully reset. As a result, as Figure 5 shown, an included angle B is generated between the connecting rod 32 and the partition 2, enabling the connecting rod 32 to actively open outwards under the action of the inclination angle when pressed, preventing the connecting rod 32 from squeezing the limiting block 6 and deforming the limiting block 6, which affects the opening of the connecting rod 32.

[0038] Since the main function of the pressing portion 7 is to prevent the connecting rod 32 from being perpendicular to the partition 2 after resetting and affecting subsequent opening, it is sufficient to make the angle B less than 90 degrees. Therefore, the included angle between the connecting rod 32 and the partition 2 is set between 80 degrees and 90 degrees, which can avoid the connecting rod 32 being perpendicular to the partition 2 and minimize the floor area of the tool cart as much as possible after the connecting rod 32 is reset, making the storage of the tool cart more convenient.

[0039] In a further preferred embodiment of the present utility model, as Figure 5 shown, the tension assembly 5 includes a tension spring 51 and a pneumatic cylinder 52. The bottom of the cylinder body of the pneumatic cylinder 52 is hinged to the bottom of the partition 2, the top of the output shaft of the pneumatic cylinder 52 is hinged to the outer side wall of the connecting rod 32, and annular portions 8 are formed by protrusions at the bottom of the cylinder body and the top of the output shaft of the pneumatic cylinder 52. A tension spring 51 is fixedly connected between the two annular portions 8.

[0040] In this embodiment, an air cylinder 52 is hinged to the bottom of the partition plate 2, and the end of the output shaft of the air cylinder 52 is hinged to the connecting rod 32. When the connecting rod 32 is opened by the extrusion of the tool, the air cylinder 52 is stretched, so that a negative pressure is generated in the air cylinder 52. The pressure of the gas is used to apply a restoring force to the connecting rod 32, so that the connecting rod 32 can maintain the support for the tool cart and automatically adjust the opening amplitude according to the pressure of the tool.

[0041] By providing the tension spring 51, the tension applied to the connecting rod 32 can be further increased, so that the tool cart can place heavier tools without the legs 3 being flattened and the bottom of the tool cart rubbing against the ground, further improving the practicability of the tool cart.

[0042] In a further preferred embodiment of the present invention, as Figure 5 shown, the inner diameter of the tension spring 51 is larger than the outer diameter of the cylinder body of the air cylinder 52, so that the tension spring 51 is sleeved outside the air cylinder 52.

[0043] In this embodiment, by making the outer diameter of the tension spring 51 larger than the outer diameter of the cylinder body of the air cylinder 52, so as to facilitate sleeving the tension spring 51 outside the air cylinder 52, the rigidity of the air cylinder 52 can be used to limit the tension spring 51, making the tension spring 51 more stable after installation.

[0044] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A tool cart with good stability, comprising a support frame (1), wherein the support frame (1) is provided with a plurality of partitions (2) for placing tools at intervals from top to bottom, characterized in that: The bottom partition (2) of the support frame (1) is thickened, and legs (3) are arranged at the four corners of the bottom of the thickened partition (2). The bottom of the legs (3) is connected to a universal wheel (4), and a tension component (5) is arranged between the legs (3) and the partition (2).

2. A tool vehicle with good stability according to claim 1, characterized in that: The support leg (3) is mainly composed of a U-shaped bracket (31) and a connecting rod (32); the top of the U-shaped bracket (31) is fixedly connected to the partition (2); the connecting rod (32) is rotatably connected inside the U-shaped bracket (31); and a limit block (6) for limiting the rotation of the connecting rod (32) is fixedly connected to one side of the inner side wall of the U-shaped bracket (31) close to the middle of the partition (2).

3. A tool vehicle with good stability according to claim 2, characterized in that: The rotation axis of the connecting rod (32) and the long side of the partition (2) are arranged at an angle between 0 and 45 degrees, so that the U-shaped bracket (31) is arranged obliquely at the bottom of the partition (2).

4. A tool vehicle with good stability according to claim 3, characterized in that: The bottom of the limiting block (6) close to the connecting rod (32) is convexly formed with an extrusion portion (7), so that when the connecting rod (32) is retracted into the U-shaped bracket (31), the angle between the connecting rod (32) and the partition (2) is between 80 degrees and 90 degrees.

5. A tool vehicle with good stability according to claim 4, characterized in that: The tension component (5) comprises a tension spring (51) and a pneumatic cylinder (52); the bottom of the cylinder body of the pneumatic cylinder (52) is hinged to the bottom of the partition (2); the top of the output shaft of the pneumatic cylinder (52) is hinged to the outer wall of the connecting rod (32); the bottom of the cylinder body and the top of the output shaft of the pneumatic cylinder (52) are both protruding to form an annular portion (8); and the tension spring (51) is fixedly connected between the two annular portions (8).

6. A tool vehicle with good stability according to claim 5, characterized in that: The inner diameter of the tension spring (51) is larger than the outer diameter of the pneumatic cylinder (52), so that the tension spring (51) is sleeved on the outer side of the pneumatic cylinder (52).

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