Trolley

Abstract

The utility model relates to the technical field of trolleys, and discloses a small trolley which comprises two bottom frames, the two bottom frames are symmetrically arranged, connecting pieces are rotationally connected to the two sides between the two bottom frames, a cross rod is fixedly connected between the two connecting pieces, and side frames are rotationally connected to the sides, away from the connecting pieces, of the bottom frames. The middle of one side of the side frame is connected with a telescopic rod, one side of the side frame is fixedly connected with symmetrical supporting frames, the lower ends of the supporting frames are rotationally connected with idler wheels, the two ends of the side frame are rotationally connected with U-shaped supports, the two U-shaped supports are rotationally connected, and cloth pockets are placed in the U-shaped supports. According to the trolley, the cloth pockets are taken out from the interiors of the U-shaped supports and placed independently, the two U-shaped supports rotate and get close to each other by rotating the U-shaped supports upwards, and then the two bottom frames are driven to rotate, so that folding of the trolley is achieved, and therefore the trolley is more convenient to carry and use; and the trolley does not occupy too much space when being placed.

Description

Technical Field

[0001] The utility model relates to the technical field of trolleys, in particular to a small trolley. Background Art

[0002] As a transport vehicle that is pushed and pulled by manpower, the trolley is easy to operate and use, has strong passability, and can be used in various complex environments. Therefore, the trolley has been promoted in life and production.

[0003] However, most of the existing trolleys have complex frame structures, large volumes, and are often not disassembled or foldable, which makes maintenance difficult. They are not only not conducive to transporting materials in various environments, but also occupy a large space when not in use, which increases the difficulty of carrying and using.

[0004] In order to solve the above problems, a small cart is proposed in the present application. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a trolley to at least solve one of the problems raised in the background technology, making the trolley more convenient to use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trolley, comprising a base frame, wherein the base frames are two and symmetrically arranged, both sides between the two base frames are rotatably connected with connecting pieces, a cross bar is fixedly connected between the two connecting pieces, a side frame is rotatably connected to the side of the base frame away from the connecting piece, a telescopic rod is connected in the middle of one side of the side frame, a symmetrical supporting frame is fixedly connected to one side of the side frame, a roller is rotatably connected to the lower end of the supporting frame, U-shaped brackets are rotatably connected to both ends of the side frame, the two U-shaped brackets are rotatably connected, and a cloth bag is placed inside the U-shaped bracket.

[0007] Preferably, the telescopic rod includes a sleeve rod, the upper end of the sleeve rod is slidably connected to the inner rod, the lower end of the sleeve rod is fixedly connected to the connecting rod, the upper end of the outer wall of the sleeve rod is fixedly connected to a fixing collar, the fixing collar is fixedly connected to a pressing block, the inner wall of the pressing block is fixedly connected to a push rod, the inner wall of the inner rod is fixedly connected to a first torsion spring, the other end of the first torsion spring is fixedly connected to a limiting block, the limiting block extends out of the inner rod and is slidably connected to the inner rod, and a limiting groove matching the limiting block is provided on the side wall of the sleeve rod.

[0008] Preferably, a U-shaped block is fixedly connected to one side of the side frame, a rotating shaft is fixedly connected between the two sides of the inner wall of the U-shaped block, the rotating shaft passes through the connecting rod and is rotatably connected to the connecting rod, a disc is fixedly connected to the outer wall of the rotating shaft, a second torsion spring is sleeved on the outer wall of the rotating shaft, one end of the second torsion spring is fixedly connected to the disc, and the other end is fixedly connected to the inner wall of the sleeve rod.

[0009] Preferably, ear handles are fixedly connected to both sides of the upper end of the cloth bag, a Velcro fleece surface is fixedly connected to one side of the ear handle, and Velcro hook surfaces adhered to the Velcro fleece surface are fixedly connected to the upper ends of both sides of the cloth bag.

[0010] Preferably, a support plate is fixedly connected to the bottom of the inner wall of the cloth bag.

[0011] Preferably, a handle is fixedly connected to the top of the telescopic rod, and an anti-slip sleeve is provided on the outer wall of the handle.

[0012] Preferably, both sides of the cloth bag are fixedly connected with carrying straps.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] When people need to fold and store the trolley, they can first take out the cloth bag from the inside of the U-shaped bracket and place it separately, and then rotate the U-shaped bracket upwards to make the two U-shaped brackets rotate and move closer to each other. The rotation of the U-shaped bracket will make the two side frames move closer to each other, and then drive the two bottom frames to rotate, so as to realize the folding of the trolley, which not only makes the carrying and use of the trolley more convenient, but also ensures that the trolley does not take up too much space when placed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the utility model after the cloth bag is taken out;

[0017] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the utility model trolley after folding;

[0018] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the cloth bag of the utility model;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 6 It is a partial enlarged structural schematic diagram of the telescopic rod of the utility model;

[0021] Figure 7 It is a partial enlarged structural schematic diagram of the telescopic rod of the utility model;

[0022] Figure 8 It is a schematic diagram of the enlarged structure inside the connecting rod of the utility model;

[0023] Fig. 9 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0024] Fig.10 For this utility model Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0025] Fig.11 For this utility model Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0026] In the figure: 1. base frame; 2. connecting piece; 3. cross bar; 4. side frame; 5. telescopic rod; 6. support frame; 7. roller; 8. U-shaped bracket; 9. inner rod; 10. sleeve rod; 11. fixing ring; 12. first torsion spring; 13. limit block; 14. limit groove; 15. pressing block; 16. push rod; 17. U-shaped block; 18. rotating shaft; 19. disc; 20. second torsion spring; 21. cloth bag; 22. carrying strap; 23. support plate; 24. handle; 25. connecting rod; 26. ear handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-11 A trolley comprises a base frame 1, wherein the base frames 1 are two and symmetrically arranged, both sides of the two base frames 1 are rotatably connected with connecting pieces 2, a cross bar 3 is fixedly connected between the two connecting pieces 2, a side frame 4 is rotatably connected to the side of the base frame 1 away from the connecting piece 2, a telescopic rod 5 is connected to the middle of one side of the side frame 4, a symmetrical supporting frame 6 is fixedly connected to one side of the side frame 4, a roller 7 is rotatably connected to the lower end of the supporting frame 6, U-shaped brackets 8 are rotatably connected to both ends of the side frames 4, the two U-shaped brackets 8 are rotatably connected to each other, and a cloth bag 21 is placed inside the U-shaped bracket 8.

[0029] Specific working principle and implementation method: According to the prior art, most of the trolleys have complex frame structures, large volumes, and are often non-detachable and non-foldable, making maintenance difficult. They are not conducive to transporting materials in various environments, and the trolleys occupy a large space when not in use, which increases the difficulty of carrying and using them. Therefore, there are the technical problems mentioned in the background technology. The above-mentioned scheme can solve the above-mentioned problems. When people need to fold and store the trolley, they can first take out the cloth bag 21 from the inside of the U-shaped bracket 8 and place it separately. By rotating the U-shaped bracket 8 upward, the two U-shaped brackets 8 are rotated and approached to each other. The rotation of the U-shaped bracket 8 will make the two side frames 4 approach each other, thereby driving the two bottom frames 1 to rotate, thereby realizing the folding of the trolley, which not only makes the carrying and use of the trolley more convenient, but also prevents the trolley from taking up too much space when placed.

[0030] like Figure 5 and Fig.11 As shown, the telescopic rod 5 includes a sleeve rod 10, the upper end of the sleeve rod 10 is slidably connected to the inner rod 9, the lower end of the sleeve rod 10 is fixedly connected to the connecting rod 25, the upper end of the outer wall of the sleeve rod 10 is fixedly connected to the fixing collar 11, the fixing collar 11 is fixedly connected to the pressing block 15, the inner wall of the pressing block 15 is fixedly connected to the push rod 16, the inner wall of the inner rod 9 is fixedly connected to the first torsion spring 12, the other end of the first torsion spring 12 is fixedly connected to the limiting block 13, the limiting block 13 extends out of the inner rod 9 and is slidably connected to the inner rod 9, and the side wall of the sleeve rod 10 is provided with a fixing ring 11 fixedly connected to the pressing block 15, and the fixing ring 11 is fixedly connected to the pressing block 16. When people store the trolley, they press the pressing block 15 to move the limit block 13 toward the inside of the inner rod 9. When the limit block 13 is out of the limit slot 14, the inner rod 9 and the sleeve rod 10 can slide to store the telescopic rod 5, so that the trolley can save more space when placed. When the trolley needs to be unfolded for use, the inner rod 9 is pulled to a certain extent, and the limit block 13 pops out under the action of the first torsion spring 12 and engages with the limit slot 14, and the trolley can be used normally.

[0031] like Figure 7 and Figure 8As shown, a U-shaped block 17 is fixedly connected to one side of the side frame 4, and a rotating shaft 18 is fixedly connected between the two sides of the inner wall of the U-shaped block 17. The rotating shaft 18 passes through the connecting rod 25 and is rotatably connected to the connecting rod 25. A disc 19 is fixedly connected to the outer wall of the rotating shaft 18. A second torsion spring 20 is sleeved on the outer wall of the rotating shaft 18. One end of the second torsion spring 20 is fixedly connected to the disc 19, and the other end is fixedly connected to the inner wall of the sleeve rod 10. People can move the trolley by pulling the telescopic rod 5. The connecting rod 25 and the U-shaped block 17 are rotatably connected through the rotating shaft 18, so that people can rotate the telescopic rod 5 when pulling the trolley. After rotating it to a certain angle, people can pull the trolley more easily. Through the second torsion spring 20 arranged on the outer wall of the rotating shaft 18, after people let go, the telescopic rod 5 will be reset under the action of the second torsion spring 20, thereby making the use of the trolley more convenient.

[0032] like Figure 1 and Figure 4 As shown, ear handles 26 are fixedly connected to both sides of the upper end of the cloth bag 21, and Velcro fleece surfaces are fixedly connected to one side of the ear handles 26. The upper ends of both sides of the cloth bag 21 are fixedly connected to Velcro hook surfaces that adhere to the Velcro fleece surfaces. After people place the cloth bag 21 inside the U-shaped bracket 8, the Velcro fleece surfaces set on one side of the ear handles 26 are bonded to the Velcro hook surfaces set on the cloth bag 21, which can make the placement of the cloth bag 21 on the U-shaped bracket 8 more stable, thereby ensuring the normal operation of the cart.

[0033] like Figure 4 As shown, a support plate 23 is fixedly connected to the bottom of the inner wall of the cloth bag 21. The support plate 23 arranged inside the cloth bag 21 can effectively improve the stability of the cloth bag 21, thereby further ensuring the normal operation of the trolley.

[0034] like Figure 1 As shown, a handle 24 is fixedly connected to the top of the telescopic rod 5, and an anti-skid sleeve is provided on the outer wall of the handle 24. People can pull the handle 24 provided on the upper end of the telescopic rod 5 to make it easier and more convenient for people to pull the trolley. The anti-skid sleeve provided on the outer wall of the handle 24 can effectively increase the friction between people's hands and the handle 24 to prevent people's hands from slipping.

[0035] like Figure 4 As shown, both sides of the cloth bag 21 are fixedly connected with carrying straps 22. When people need to take the cloth bag 21 out of the U-shaped bracket 8, they first separate the Velcro fur surface on one side of the ear handle 26 from the Velcro hook surface on the cloth bag 21. At this time, by pulling the carrying straps 22 upwards, the cloth bag 21 can be easily taken out of the U-shaped bracket 8, thereby making the use of the cart more convenient.

[0036] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A trolley, comprising a chassis (1), characterized in that: The number of the bottom frames (1) is two and they are symmetrically arranged. Both sides between the two bottom frames (1) are rotatably connected with connecting pieces (2). A cross bar (3) is fixedly connected between the two connecting pieces (2). A side of the bottom frame (1) away from the connecting piece (2) is rotatably connected with a side frame (4). A telescopic rod (5) is connected in the middle of one side of the side frame (4). A symmetrical support frame (6) is fixedly connected to one side of the side frame (4). A roller (7) is rotatably connected to the lower end of the support frame (6). U-shaped brackets (8) are rotatably connected to both ends of the side frame (4). The two U-shaped brackets (8) are rotatably connected to each other. A cloth bag (21) is placed inside the U-shaped bracket (8).

2. A trolley according to claim 1, characterized in that: The telescopic rod (5) comprises a sleeve rod (10), the upper end of the sleeve rod (10) is slidably connected to the inner rod (9), the lower end of the sleeve rod (10) is fixedly connected to the connecting rod (25), the upper end of the outer wall of the sleeve rod (10) is fixedly connected to the fixing collar (11), the fixing collar (11) is fixedly connected to the pressing block (15), the inner wall of the pressing block (15) is fixedly connected to the pushing rod (16), the inner wall of the inner rod (9) is fixedly connected to the first torsion spring (12), the other end of the first torsion spring (12) is fixedly connected to the limiting block (13), the limiting block (13) extends out of the inner rod (9) and is slidably connected to the inner rod (9), and the side wall of the sleeve rod (10) is provided with a limiting groove (14) matching the limiting block (13).

3. A trolley according to claim 2, characterized in that: A U-shaped clamping block (17) is fixedly connected to one side of the side frame (4); a rotating shaft (18) is fixedly connected between two sides of the inner wall of the U-shaped clamping block (17); the rotating shaft (18) passes through the connecting rod (25) and is rotatably connected to the connecting rod (25); a disc (19) is fixedly connected to the outer wall of the rotating shaft (18); a second torsion spring (20) is sleeved on the outer wall of the rotating shaft (18); one end of the second torsion spring (20) is fixedly connected to the disc (19), and the other end is fixedly connected to the inner wall of the sleeve rod (10).

4. A trolley according to claim 1, characterized in that: Both sides of the upper end of the cloth bag (21) are fixedly connected with ear handles (26), one side of the ear handle (26) is fixedly connected with a Velcro fleece surface, and the upper ends of both sides of the cloth bag (21) are fixedly connected with Velcro hook surfaces that adhere to the Velcro fleece surface.

5. A trolley according to claim 1, characterized in that: A support plate (23) is fixedly connected to the bottom of the inner wall of the cloth bag (21).

6. A trolley according to claim 1, characterized in that: The top of the telescopic rod (5) is fixedly connected with a handle (24), and the outer wall of the handle (24) is provided with an anti-slip cover.

7. A trolley according to claim 1, characterized in that: Both sides of the cloth bag (21) are fixedly connected with carrying straps (22).

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