Tool car convenient to fold and store

Abstract

The utility model belongs to the technical field of tool cars, and particularly relates to a tool car convenient to fold and store, which comprises an upper frame and a bottom frame, a moving roller component is mounted on the lower end face of the bottom frame, a plurality of groups of folding pipe components are arranged between the upper frame and the bottom frame, and each folding pipe component comprises an upper pipe and a lower pipe rotatably connected with the upper pipe. The upper end of the upper pipe is rotationally connected with the upper frame, the lower end of the lower pipe is rotationally connected with the bottom frame, a positioning piece is installed on the side face of the upper pipe, a positioning column is arranged on the side face of the lower pipe, one end of the positioning piece is rotationally connected with the upper pipe, and a positioning notch for the positioning column to be clamped in is formed in the other end of the positioning piece so as to limit relative rotation between the upper pipe and the lower pipe. Through the design of the folding pipe assembly, the problem that an existing double-layer tool car cannot be folded is solved, in the actual use process, the upper frame can be folded to the upper end face of the bottom frame by rotating the folding pipe assembly, folding of the double-layer tool car is achieved, occupied space is reduced, and carrying is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tool carts, and particularly refers to a tool cart that is convenient for folding and storing. Background Art

[0002] The foldable double-layer tool cart utilizes the joint folding principle to realize the free unfolding and folding of the vehicle body. It is a commonly used carrier when going out for shooting. It can be folded and stored in a small space such as the trunk of a car, occupying a small area and being convenient to carry. However, the currently commonly used tool carts are all single-layer vehicles, with a small storage space, limited load capacity, and the length of the carried items is also restricted, which cannot well meet the requirements of modern outdoor activities during travel. Content of the Utility Model

[0003] The purpose of the utility model is to provide a tool cart that is convenient for folding and storing, and solves the problem that the double-layer tool cart cannot be folded through a folding tube assembly.

[0004] The purpose of the utility model is realized as follows: A tool cart that is convenient for folding and storing includes an upper frame and a bottom frame. A moving roller assembly is installed on the lower end surface of the bottom frame. A plurality of groups of folding tube assemblies are arranged between the upper frame and the bottom frame. The folding tube assembly includes an upper tube and a lower tube rotatably connected thereto. The upper end of the upper tube is rotatably connected to the upper frame, and the lower end of the lower tube is rotatably connected to the bottom frame. A positioning piece is installed on the side surface of the upper tube, and a positioning post is arranged on the side surface of the lower tube. One end of the positioning piece is rotatably connected to the upper tube, and a positioning notch for the positioning post to be inserted into is opened at the other end of the positioning piece to limit the relative rotation between the upper tube and the lower tube.

[0005] Preferably, a vertical tube connection seat one is arranged on the upper end surface of the bottom frame, and an arc-shaped hole one is opened in the vertical tube connection seat one. A fastening knob one is installed on the side surface of the lower tube, and a nut one is arranged inside the lower tube. One end of the fastening knob one passes through the arc-shaped hole one and is screwed into the nut one.

[0006] Preferably, a rotation hole one is opened inside the lower tube, and a rotation hole two is opened in the vertical tube connection seat one. A rotation shaft one is installed between the rotation hole one and the rotation hole two.

[0007] Preferably, a vertical tube connection seat two is arranged on the lower end surface of the upper frame, and an arc-shaped hole two is opened in the vertical tube connection seat two. A fastening knob two is installed on the side surface of the upper tube, and a nut two is arranged inside the upper tube. One end of the fastening knob two passes through the arc-shaped hole two and is screwed into the nut two.

[0008] Preferably, a rotation hole three is opened inside the upper tube, and a rotation hole four is opened in the vertical tube connection seat two. A rotation shaft two is installed between the rotation hole three and the rotation hole four.

[0009] Preferably, a fixed inner piece is installed on the side of the upper pipe, a fixed outer piece is installed on the side of the lower pipe, and a rotating shaft three is installed between the fixed outer piece and the fixed inner piece.

[0010] Preferably, a abutting piece is formed on the side of the positioning piece.

[0011] Preferably, a number of strip holes are respectively formed in the upper frame and the bottom frame.

[0012] Preferably, a handle is installed on the side of the upper frame.

[0013] Preferably, the moving roller assembly includes a directional wheel and a universal wheel.

[0014] The prominent and beneficial technical effects of the present utility model compared with the prior art are:

[0015] Through the design of the folding tube assembly, the present utility model solves the problem that the existing double-layer tool cart cannot be folded. During actual use, the upper frame can be folded to the upper end surface of the bottom frame by rotating the folding tube assembly, thereby realizing the folding of the double-layer tool cart, reducing the occupied space and being convenient for carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural diagram of the present utility model.

[0017] Figure 2 is a structural diagram of the folding tube assembly.

[0018] Figure 3 is a structural diagram of the present utility model when folded.

[0019] Figure 4 is a structural diagram of the present utility model after folding.

[0020] Reference numerals: 1 - upper frame; 2 - bottom frame; 3 - moving roller assembly; 3a - directional wheel;

[0021] 3b - universal wheel; 4 - folding tube assembly; 4a - upper pipe; 4b - lower pipe; 5 - positioning piece; 6 - positioning column; 7 - positioning notch; 8 - riser connection seat one; 9 - arc hole one; 10 - fastening knob one; 11 - nut one; 12 - rotation hole one; 13 - rotation hole two; 14 - rotation shaft one; 15 - riser connection seat two; 16 - arc hole two; 17 - fastening knob two; 18 - nut two; 19 - rotation hole three; 20 - rotation hole four; 21 - rotation shaft two; 22 - fixed inner piece; 23 - fixed outer piece; 24 - rotation shaft three; 25 - abutting piece; 26 - strip hole; 27 - handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further elaborates on the specific implementation manners of the present utility model in conjunction with the accompanying drawings.

[0023] As Figures 1-4 shown, a tool cart that is convenient for folding and storage includes an upper frame 1 and a bottom frame 2. A moving roller assembly 3 is installed on the lower end surface of the bottom frame 2. Between the upper frame 1 and the bottom frame 2, several groups of folding tube assemblies 4 are provided. The folding tube assembly 4 includes an upper tube 4a and a lower tube 4b rotatably connected thereto. The upper end of the upper tube 4a is rotatably connected to the upper frame 1, and the lower end of the lower tube 4b is rotatably connected to the bottom frame 2. A positioning piece 5 is installed on the side of the upper tube 4a, and a positioning post 6 is provided on the side of the lower tube 4b. One end of the positioning piece 5 is rotatably connected to the upper tube 4a, and a positioning notch 7 for the positioning post 6 to be inserted into is formed at the other end of the positioning piece 5. After the tool cart is unfolded, by rotating the positioning piece 5, the positioning post 6 is inserted into the positioning notch 7, which can limit the relative rotation between the upper tube 4a and the lower tube 4b, so that the two pipe fittings maintain a vertical state.

[0024] Through the design of the folding tube assembly, the present utility model solves the problem that the existing double-layer tool cart cannot be folded. During actual use, the upper frame can be folded onto the upper end surface of the bottom frame by rotating the folding tube assembly, thereby realizing the folding of the double-layer tool cart, reducing the occupied space and being convenient for carrying.

[0025] Combined with Figure 1 and Figure 2 , a first vertical pipe connection seat 8 is provided on the upper end surface of the bottom frame 2. An arc-shaped hole 9 is formed in the first vertical pipe connection seat 8. A first tightening knob 10 is installed on the side of the lower tube 4b, and a first nut 11 is arranged inside the lower tube 4b. One end of the first tightening knob 10 passes through the arc-shaped hole 9 and is screwed into the first nut 11. During actual use, by tightening the first tightening knob, the first tightening knob 10, the first vertical pipe connection seat 8, and the lower tube 4b can be closely attached together, thereby fixing the position of the lower tube 4b and preventing it from rotating for convenient unfolding and use.

[0026] Specifically, referring to Figure 2 , a first rotation hole 12 is formed inside the lower tube 4b, and a second rotation hole 13 is formed in the first vertical pipe connection seat 8. A first rotation shaft 14 is installed between the first rotation hole 12 and the second rotation hole 13 to realize the rotational connection between the lower tube 4b and the first vertical pipe connection seat 8.

[0027] Combined with Figure 1 and Figure 2, a second riser connection base 15 is provided on the lower end surface of the upper frame 1. An arc-shaped hole 16 is formed in the second riser connection base 15. A second fastening knob 17 is installed on the side surface of the upper pipe 4a. A second nut 18 is arranged inside the upper pipe 4a. One end of the second fastening knob 17 passes through the arc-shaped hole 16 and is screwed into the second nut 18. During actual use, by screwing the second fastening knob tightly, the second fastening knob 17, the second riser connection base 15, and the upper pipe 4a can be closely attached together, thereby fixing the position of the lower pipe 4a and preventing it from rotating, so as to facilitate deployment and use.

[0028] Specifically, see Figure 2 , a third rotation hole 19 is formed inside the upper pipe 4a, and a fourth rotation hole 20 is formed inside the second riser connection base 15. A second rotation shaft 21 is installed between the third rotation hole 19 and the fourth rotation hole 20, thereby realizing the rotational connection between the upper pipe 4a and the second riser connection base 15.

[0029] Specifically, see Figure 2 , a fixed inner piece 22 is installed on the side surface of the upper pipe 4a, and a fixed outer piece 23 is installed on the side surface of the lower pipe 4b. A third rotation shaft 24 is installed between the fixed outer piece 23 and the fixed inner piece 22, thereby realizing the rotational connection between the upper pipe 4a and the lower pipe 4b.

[0030] An abutting piece 25 is formed on the side surface of the positioning piece 5. When the tool cart is folded, the upper end surface of the abutting piece 25 can abut against the lower end surface of the upper frame 1, thereby increasing the bearing pressure and preventing deformation.

[0031] A number of strip-shaped holes 26 are respectively formed inside the upper frame 1 and the bottom frame 2.

[0032] A handle 27 is installed on the side surface of the upper frame 1, which is convenient for moving and using.

[0033] The mobile roller assembly 3 includes a directional wheel 3a and a universal wheel 3b.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool cart that is easy to fold and store, characterized in that: The invention comprises an upper frame (1) and a lower frame (2), wherein a movable roller assembly (3) is installed on the lower end surface of the lower frame (2), and a plurality of groups of folding tube assemblies (4) are arranged between the upper frame (1) and the lower frame (2), wherein the folding tube assembly (4) comprises an upper tube (4a) and a lower tube (4b) rotatably connected thereto, wherein the upper end of the upper tube (4a) is rotatably connected to the upper frame (1), and the lower end of the lower tube (4b) is rotatably connected to the lower frame (2), a positioning piece (5) is installed on the side surface of the upper tube (4a), and a positioning column (6) is arranged on the side surface of the lower tube (4b), wherein one end of the positioning piece (5) is rotatably connected to the upper tube (4a), and the other end of the positioning piece (5) is provided with a positioning notch (7) for the positioning column (6) to be inserted into, so as to limit the relative rotation between the upper tube (4a) and the lower tube (4b).

2. The foldable and storable tool cart according to claim 1, characterized in that: The upper end surface of the bottom frame (2) is provided with a vertical pipe connecting seat (8), an arc-shaped hole (9) is opened in the vertical pipe connecting seat (8), a fastening knob (10) is installed on the side of the lower tube (4b), a nut (11) is provided in the lower tube (4b), and one end of the fastening knob (10) passes through the arc-shaped hole (9) and is screwed into the nut (11).

3. The foldable and storable tool cart according to claim 2, characterized in that: A rotating hole (12) is provided in the lower tube (4b), a rotating hole (13) is provided in the vertical tube connecting seat (8), and a rotating shaft (14) is installed between the rotating hole (12) and the rotating hole (13).

4. The foldable and storable tool cart according to claim 1, characterized in that: The lower end surface of the upper frame (1) is provided with a second vertical pipe connection seat (15), and a second arc-shaped hole (16) is opened in the second vertical pipe connection seat (15). A second fastening knob (17) is installed on the side of the upper tube (4a), and a second nut (18) is arranged in the upper tube (4a). One end of the second fastening knob (17) passes through the second arc-shaped hole (16) and is screwed into the second nut (18).

5. The foldable and storable tool cart according to claim 4, characterized in that: A third rotating hole (19) is provided in the upper tube (4a), a fourth rotating hole (20) is provided in the vertical tube connecting seat (15), and a second rotating shaft (21) is installed between the third rotating hole (19) and the fourth rotating hole (20).

6. The foldable and storable tool cart according to claim 1, characterized in that: A fixed inner plate (22) is installed on the side of the upper tube (4a), a fixed outer plate (23) is installed on the side of the lower tube (4b), and a rotating shaft (24) is installed between the fixed outer plate (23) and the fixed inner plate (22).

7. The foldable and storable tool cart according to claim 1, characterized in that: A supporting piece (25) is formed on the side surface of the positioning piece (5).

8. The foldable and storable tool cart according to claim 1, characterized in that: A plurality of strip-shaped holes (26) are respectively provided in the upper frame (1) and the bottom frame (2).

9. The foldable and storable tool cart according to claim 1, characterized in that: A handle (27) is installed on the side of the upper frame (1).

10. The foldable and storable tool cart according to claim 1, characterized in that: The movable roller assembly (3) comprises a directional wheel (3a) and a universal wheel (3b).

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