Folding bicycle convenient to adjust

Abstract

The utility model relates to a folding bicycle convenient to adjust, which comprises two support frames, a plurality of layers of placing panels are arranged between the two support frames at intervals from top to bottom, each placing panel mainly comprises a main plate and an auxiliary plate, the main plates and the auxiliary plates are respectively hinged with the corresponding support frames, and the main plates and the auxiliary plates are arranged on the support frames. The side, close to the auxiliary plate, of the main plate is fixedly connected with a rotating shaft, the main plate is rotationally connected with the auxiliary plate through the rotating shaft, and positioning assemblies are arranged at the two ends of the rotating shaft. The utility model relates to the technical field of tool cars. According to the folding trolley convenient to adjust, through the arrangement of the main plate, the auxiliary plate and the rotating shaft, the containing panel, used for containing tools, of the tool trolley can be folded according to the use requirement, the occupied space is smaller when the tool trolley is stored, the practicability of the tool trolley is improved, and the arranged positioning assembly is mainly used for preventing looseness after the tool trolley is folded.

Description

Technical Field

[0001] The utility model relates to the technical field of tool carts, in particular to a foldable cart which is easy to adjust. Background Art

[0002] We often use various tools in our daily life, but the scattered tools are placed in a disorderly manner and difficult to find, so people like to store these tools. Tool cabinets and tool carts are suitable for the fixed location management of tools, knives, and parts in the production site, so that your item storage and retrieval work can be truly timely, accurate, efficient, and low-cost.

[0003] In the prior art, since scattered tools need to be placed on the tool cart, the placement plane of the tool cart is usually made larger. The larger placement plane will cause the tool cart to require a larger floor space, resulting in a large waste of space when the tool cart is not in use, affecting the storage of the tool cart. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a folding bicycle that is easy to adjust, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A folding bicycle that is easy to adjust comprises a support frame, wherein two support frames are provided, and a multi-layer placement panel is arranged between the two support frames from top to bottom, wherein the placement panel is mainly composed of a main board and a sub-board, and the main board and the sub-board are respectively hinged to the corresponding support frames, a rotating shaft is fixedly connected to one side of the main board close to the sub-board, and the main board is rotatably connected to the sub-board through the rotating shaft, and positioning components are arranged at both ends of the rotating shaft.

[0007] Furthermore, the positioning assembly includes a connecting rod, a positioning sleeve, a locking block and an adjustment button. The connecting rod is rotatably connected to the rotating shaft through a bearing. The top of the connecting rod is fixedly connected to a positioning sleeve. A positioning groove with a diameter larger than the diameter of the rotating shaft is provided in the positioning sleeve. At least two locking blocks for clamping the rotating shaft are arranged in a circular array in the positioning groove. An adjustment button for squeezing open the locking block is inserted on the side of the positioning sleeve away from the rotating shaft.

[0008] Furthermore, the inner side wall of the positioning groove is provided with circular grooves having the same number as the locking blocks, and support springs for supporting the corresponding locking blocks are arranged in the circular grooves.

[0009] Furthermore, a protrusion on one side of the outer wall of the adjustment button located in the positioning groove forms a limiting portion, and a diameter of the limiting portion is greater than a diameter of the rotating shaft.

[0010] Furthermore, a side of the limiting portion close to the locking block is processed with an oblique angle for squeezing the locking block, and a side of the locking block close to the limiting portion is processed with an inclined surface in contact with the oblique angle.

[0011] Furthermore, a blocking portion is formed on a protrusion on one side of the top of the main board and the sub-board away from the rotating shaft, and the front and rear sides of the blocking portion are flush with the front and rear sides of the main board and the sub-board.

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

[0013] 1. This folding cart that is easy to adjust can make the placement panel of the tool cart for placing tools foldable according to the use requirements through the provided main board, sub-board and rotating shaft, so that the tool cart occupies less space when stored, and improves the practicality of the tool cart. The provided positioning component is mainly used to prevent the tool cart from loosening after folding, so as to avoid the tool cart from being unfolded again after folding. At the same time, it can also ensure that the placement panel of the tool cart will not be sunken when placing tools, so that the tool cart is more stable to use;

[0014] 2. This folding cart is easy to adjust. The intercepting part can intercept the tools that slip off the placement panel when the tool cart is folded, so as to prevent the tools from directly sliding out of the tool cart and falling and being damaged, thereby effectively improving 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 utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 The utility model is a structural schematic diagram of a folding bicycle which is easy to adjust.

[0017] Figure 2 The utility model is a schematic structural diagram of a folding bicycle which is easy to adjust when folded.

[0018] Figure 3 The utility model is a structural schematic diagram of a positioning assembly in a folding bicycle which is easy to adjust.

[0019] Figure 4 The utility model is a structural schematic diagram of a folding bicycle that is easy to adjust when an adjusting button squeezes out a locking block.

[0020] In the figure, 1. support frame; 2. placement panel; 21. main board; 22. sub-board; 23. rotating shaft; 3. positioning assembly; 31. connecting rod; 32. positioning sleeve; 33. locking block; 34. adjustment button; 4. positioning groove; 5. circular groove; 6. support spring; 7. limiting part; 8. bevel; 9. inclined surface; 10. intercepting part. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Example:

[0023] Reference Figure 1 - Figure 4 The utility model discloses a folding bicycle that is easy to adjust, including a support frame 1, two of which are provided, and a multi-layer placement panel 2 is arranged between the two support frames 1 from top to bottom, and the placement panel 2 is mainly composed of a main board 21 and a sub-board 22, and the main board 21 and the sub-board 22 are respectively hinged to the corresponding support frame 1, and a rotating shaft 23 is fixedly connected to the side of the main board 21 close to the sub-board 22, and the main board 21 is rotatably connected to the sub-board 22 through the rotating shaft 23, and positioning components 3 are arranged at both ends of the rotating shaft 23.

[0024] In this embodiment, since the tool cart is used to place temporary tools, knives, parts and other items, the tool cart usually has a larger placement platform. The larger placement platform will cause the tool cart to occupy a larger space when stored, which will affect the storage of the tool cart.

[0025] So observe Figure 1 and Figure 2 It can be found that a main board 21 and a sub-board 22 are hinged on the two support frames 1, and a rotating shaft 23 is fixedly connected to one side of the main board 21 close to the sub-board 22, and the main board 21 is rotatably connected to the sub-board 22 through the rotating shaft 23, so that a placement panel 2 for placing tools is formed between the two support frames 1, and the main board 21 and the sub-board 22 of the placement panel 2 can rotate around the rotating shaft 23, so that the tool cart can be Figure 2 As shown, the foldable bicycle can be freely folded and stretched during use, which can effectively improve the practicality of the foldable bicycle.

[0026] However, since the main board 21 and the auxiliary board 22 can rotate relative to each other, the load-bearing performance of the tool cart is unstable, which causes the placement panel 2 to sag downward when tools are placed on it, affecting the use of the tool cart. Therefore, positioning components 3 are provided at both ends of the rotating shaft 23, and the positioning components 3 are used to limit the rotation of the rotating shaft 23. Combined with the rotating shaft 23 of the multi-layer placement panel 2, it plays a positioning role, making the folding of the tool cart more stable and preventing the placement panel 2 of the tool cart from being pressed and dented.

[0027] In a further preferred embodiment of the present invention, Figure 3 and Figure 4 As shown, the positioning assembly 3 includes a connecting rod 31, a positioning sleeve 32, a locking block 33 and an adjusting button 34. The connecting rod 31 is rotatably connected to the rotating shaft 23 through a bearing. The top of the connecting rod 31 is fixedly connected with a positioning sleeve 32. A positioning groove 4 with a diameter larger than the diameter of the rotating shaft 23 is provided in the positioning sleeve 32. At least two locking blocks 33 for clamping the rotating shaft 23 are arranged in an annular array in the positioning groove 4. The side of the positioning sleeve 32 away from the rotating shaft 23 is plugged with an adjusting button 34 for squeezing open the locking block 33.

[0028] In this embodiment, the connecting rod 31 is rotatably connected to the multiple rotating shafts 23 through bearings, so that the connecting rod 31 always remains parallel to the support frame 1 when moving, which is used to ensure that each layer of panel 2 can be folded synchronously and the folding angle remains the same.

[0029] By providing a positioning sleeve 32 on the top of the connecting rod 31 and providing a positioning groove 4 larger than the diameter of the rotating shaft 23 in the positioning sleeve 32, a locking block 33 for clamping the rotating shaft 23 can be installed in the positioning groove 4. The locking block 33 clamps the rotating shaft 23 to prevent the rotating shaft 23 from rotating relative to the positioning sleeve 32, so that the current rotating shaft 23 cannot rotate and the placement panel 2 of the current layer cannot be opened and closed. The connection of the connecting rod 31 can keep the remaining placement panels 2 at the same opening range, thereby achieving the effect of preventing the tool cart from loosening when folding, and making the folding effect of the tool cart better.

[0030] Since the locking block 33 holds the rotating shaft 23 tightly, the friction force required for the rotating shaft 23 to rotate increases, which makes the opening and closing of the folding cart more difficult and affects the use of the folding cart. Therefore, an adjustment button 34 is inserted on the side of the positioning sleeve 32 away from the rotating shaft 23. When the tool cart needs to be opened or folded, the adjustment button 34 is pressed to make the adjustment button 34 open or close. Figure 4 As shown, the locking block 33 is squeezed to move the locking block 33 away from the rotating shaft 23, so that the rotating shaft 23 can resume rotation, so that the tool cart can be opened or folded normally, making the use of the tool cart simpler and more convenient.

[0031] In a further preferred embodiment of the present invention, Figure 3 As shown, the inner side wall of the positioning groove 4 is provided with circular grooves 5 having the same number as the locking blocks 33 , and support springs 6 for supporting the corresponding locking blocks 33 are arranged in the circular grooves 5 .

[0032] In this embodiment, since the locking block 33 needs to hold the rotating shaft 23 tightly to limit the rotation of the rotating shaft 23 so as to prevent the folding bicycle from loosening and opening, it is necessary to apply a pressure to the locking block 33 to continuously squeeze the rotating shaft 23. Therefore, a circular groove 5 is provided on the inner wall of the positioning groove 4, and a supporting spring 6 fixedly connected to the locking block 33 is provided in the circular groove 5. The elastic force of the supporting spring 6 is used to push the locking block 33 to continuously squeeze the rotating shaft 23, thereby achieving the effect of the locking block 33 holding the rotating shaft 23 tightly.

[0033] In a further preferred embodiment of the present invention, Figure 3 As shown, the outer wall of one side of the adjusting button 34 located in the positioning groove 4 is protruded to form a limiting portion 7, and the diameter of the limiting portion 7 is larger than the diameter of the rotating shaft 23.

[0034] In this embodiment, since the adjusting button 34 needs to squeeze the locking block 33 when pressing so that the locking block 33 no longer holds the rotating shaft 23, a limiting portion 7 with a diameter larger than the diameter of the rotating shaft 23 is provided on the outer wall of the adjusting button 34. The locking block 33 is squeezed by the limiting portion 7, so that the locking block 33 can be squeezed open, thereby separating the locking block 33 from the rotating shaft 23 and allowing the rotating shaft 23 to rotate freely.

[0035] At the same time, the setting of the limiting portion 7 can also be used to prevent the adjustment button 34 from falling out of the positioning sleeve 32, so that the use of the positioning assembly 3 is more stable.

[0036] In a further preferred embodiment of the present invention, Figure 4 As shown, a side of the limiting portion 7 close to the locking block 33 is processed with an oblique angle 8 for squeezing the locking block 33 , and a side of the locking block 33 close to the limiting portion 7 is processed with an inclined surface 9 in contact with the oblique angle 8 .

[0037] In this embodiment, a bevel 8 is provided on the side of the limiting portion 7 close to the locking block 33, and a slope 9 in contact with the bevel 8 is processed on the side of the locking block 33 close to the limiting portion 7. When the limiting portion 7 squeezes the locking block 33, the bevel 8 and the slope 9 can better convert the pressure into a thrust for pushing the locking block 33 open, making it easier to press the adjustment button 34.

[0038] In a further preferred embodiment of the present invention, Figure 1 and Figure 2 As shown, a blocking portion 10 is formed on the top of the main board 21 and the sub-board 22 away from the rotating shaft 23 , and the front and rear sides of the blocking portion 10 are flush with the front and rear sides of the main board 21 and the sub-board 22 .

[0039] In this embodiment, since the tool cart is usually provided with a plurality of placement panels 2 for placing tools, the placement panel 2 on the bottom layer will be blocked by the placement panel 2 on the top, affecting the field of vision, resulting in the inability to put away the tools in time when the tool cart is folded. During the folding process of the tool cart, the main board 21 and the sub-board 22 will tilt, causing the tools placed on the main board 21 and the sub-board 22 to slide along the inclined surface, causing the tools to fall and be damaged.

[0040] So observe Figure 1 and Figure 2 It can be found that an intercepting portion 10 is provided on the side of the main board 21 and the sub-board 22 away from the rotating shaft 23, and the intercepting portion 10 can intercept tools that slide down on the main board 21 and the sub-board 22 to prevent the tools from being broken.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A folding bicycle that is easy to adjust, comprising a support frame (1), characterized in that: Two support frames (1) are provided, and a multi-layer placement panel (2) is arranged between the two support frames (1) from top to bottom. The placement panel (2) mainly consists of a main board (21) and a sub-board (22), and the main board (21) and the sub-board (22) are respectively hinged to the corresponding support frame (1). A rotating shaft (23) is fixedly connected to one side of the main board (21) close to the sub-board (22), and the main board (21) is rotatably connected to the sub-board (22) through the rotating shaft (23), and positioning components (3) are provided at both ends of the rotating shaft (23).

2. The foldable bicycle that is easy to adjust according to claim 1, characterized in that: The positioning assembly (3) comprises a connecting rod (31), a positioning sleeve (32), a locking block (33) and an adjusting button (34); the connecting rod (31) is rotatably connected to the rotating shaft (23) via a bearing; the top of the connecting rod (31) is fixedly connected to the positioning sleeve (32); a positioning groove (4) having a diameter greater than that of the rotating shaft (23) is provided in the positioning sleeve (32); at least two locking blocks (33) for clamping the rotating shaft (23) are arranged in an annular array in the positioning groove (4); and an adjusting button (34) for squeezing open the locking block (33) is inserted on a side of the positioning sleeve (32) away from the rotating shaft (23).

3. The foldable bicycle that is easy to adjust according to claim 2, characterized in that: The inner side wall of the positioning groove (4) is provided with circular grooves (5) having the same number as the locking blocks (33), and support springs (6) for supporting the corresponding locking blocks (33) are arranged in the circular grooves (5).

4. The foldable bicycle that is easy to adjust according to claim 3, characterized in that: The outer wall of one side of the adjusting button (34) located in the positioning groove (4) is protruded to form a limiting portion (7), and the diameter of the limiting portion (7) is greater than the diameter of the rotating shaft (23).

5. The foldable bicycle that is easy to adjust according to claim 4, characterized in that: A side of the limiting portion (7) close to the locking block (33) is processed with an oblique angle (8) for squeezing the locking block (33), and a side of the locking block (33) close to the limiting portion (7) is processed with an inclined surface (9) in contact with the oblique angle (8).

6. The foldable bicycle that is easy to adjust according to claim 1, characterized in that: A blocking portion (10) is formed on the top of the main plate (21) and the auxiliary plate (22) at a side away from the rotating shaft (23), and the front and rear sides of the blocking portion (10) are flush with the front and rear sides of the main plate (21) and the auxiliary plate (22).

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