Trolley with telescopic handle

Abstract

The utility model relates to the technical field of trolleys, and discloses a trolley with a telescopic handle, which comprises a trolley, two support legs are mounted at the bottom of the trolley, a rotating shaft is further arranged at the bottom of the trolley, wheels are fixedly sleeved at two ends of the rotating shaft, sleeves are fixedly connected to two side walls of the trolley, and the telescopic handle is arranged on the telescopic handle. A sleeve is arranged in the cart body, a handle is slidably connected into the sleeve, two sliding openings are formed in the end, close to the cart body, of the handle, sliding blocks are slidably connected into the sliding openings, a plurality of clamping blocks are fixedly connected to the sliding blocks, and a moving assembly used for driving the sliding blocks to move is arranged in the handle. When the trolley with the telescopic handles is used, a worker does not need to move the positions of the worker when adjusting the length of the handles, the working intensity is reduced, the operation convenience is improved, the two handles can be freely adjusted at the same time, and the working efficiency is improved.

Description

Technical Field

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

[0002] A construction trolley usually refers to a manual transport tool used to carry goods or materials in construction sites, factories, warehouses and other places. This trolley is usually composed of a sturdy metal frame and two wheels. It can be pushed or pulled manually and is used to transport heavy or large items such as bricks, wood, stones, sand, etc.

[0003] After searching, a kind of engineering trolley with a retractable handle is disclosed as CN208429100U, which comprises a trolley body, handle sleeves are arranged on both sides of the trolley body, a handle rod is sleeved in the handle sleeve, a trolley handle is arranged at the end of the handle rod, a plurality of first latch holes are opened on the handle rod, a second latch hole is arranged at the end of the handle sleeve, a positioning latch is arranged on the trolley body, the positioning latch comprises a fixing seat fixed on the side wall of the trolley body, a plug column is passed through the fixing seat, the front end of the plug column passes through the first plug hole and the second plug hole, an adjustment handle perpendicular to the plug column is arranged at the end of the plug column, a spring fixing block is arranged in the middle of the plug column, a telescopic spring is connected between the spring fixing block and the side wall of the fixing seat, the scheme can telescopically adjust the handle rod to reduce the length of the trolley, and facilitate the trolley to enter a narrow space, and the practicability is strong, but the above technical scheme still has the following deficiencies in actual use:

[0004] In the prior art, when the handle needs to be adjusted when entering a narrow space, the staff first needs to pull the positioning pin with one hand and keep pulling it to disengage the pin column from the first pin hole and the second pin hole, and slide the handle rod with the other hand to adjust the length of the handle, and both handles require the same operation. When the operating space is larger, the staff also needs to extend the handle in order to save effort and push the cart normally, and the operation of extending the handle is the same as above. Such operation is cumbersome and complicated, which increases the difficulty of adjustment, especially when frequently entering and exiting a narrow space, the staff needs to make adjustments many times, which reduces work efficiency.

[0005] Therefore, it is necessary to design a trolley with a telescopic handle to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and provides a trolley with a telescopic handle.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A trolley with a telescopic handle comprises a trolley, two supporting legs are installed at the bottom of the trolley, a rotating shaft is also provided at the bottom of the trolley, wheels are fixedly sleeved at both ends of the rotating shaft, sleeves are fixedly connected to the two side walls of the trolley, a handle is slidably connected inside the sleeve, two sliding openings are provided on the end of the handle close to the trolley, a slider is slidably connected inside the sliding opening, a plurality of clamping blocks are fixedly connected to the slider, a plurality of clamping grooves matching the clamping blocks are provided on the inner top surface and the inner bottom surface of the sleeve, and a moving component for driving the slider to move is provided inside the handle.

[0009] As a preferred technical solution of the present utility model, the moving assembly includes a fixed plate fixedly connected to the inside of the handle, two guide rods are fixedly connected to the top and bottom of the fixed plate, two guide grooves are provided on the opposite side walls of the two sliders, a spring is provided between the guide rod and the guide groove, and the guide rod and the guide groove are elastically connected by the spring, two connecting plates are fixedly connected to the bottom of the handle, a driving rod is connected to the two connecting plates for common rotation, a torsion spring is provided between the driving rod and the connecting plate, a connecting rope is fixed on the driving rod, and the connecting rope is respectively fixed to the opposite side walls of the two sliders.

[0010] As a preferred technical solution of the present utility model, the cart is also provided with a brake assembly, which includes an airbag 2 fixedly connected between the driving rod and the handle, a control tube is connected to the airbag 2, a control cylinder is rotatably sleeved on the rotating shaft, the control cylinder is fixed to the bottom of the cart, the inner side of the control cylinder is fixedly connected to airbag 1, and the control tube is connected to the interior of airbag 1.

[0011] As a preferred technical solution of the utility model, the end of the handle away from the cart is arranged to be tilted downward, and an anti-slip cover is provided on the tilted part of the handle.

[0012] As a preferred technical solution of the utility model, the interior of the fixed plate is hollow, the part of the connecting rope located between the two sliders is T-shaped, and the connecting rope passes through the top and bottom of the fixed plate, and a roller is provided at the connection between the connecting rope and the fixed plate.

[0013] As a preferred technical solution of the utility model, anti-slip grooves are provided on the side wall of the airbag facing the rotating shaft.

[0014] The utility model has the following beneficial effects:

[0015] 1. Convenient operation: With the telescopic handle design, the staff does not need to move when adjusting the handle length. They only need to hold the handle and the driving rod to complete the length adjustment operation, which greatly reduces the work intensity and improves the convenience of operation. The two handles can be adjusted at will at the same time, so the staff can adjust the handle length of the trolley more quickly, which improves work efficiency.

[0016] 2. Enhanced safety: When adjusting the handle length, the brake assembly can offset the side wall of the shaft through the expansion of the airbag, fix the wheels, and prevent the trolley from accidentally moving during the adjustment process, thereby enhancing the safety of the operation and ensuring the standardization and safety of the adjustment process. The entire handle adjustment and anti-movement operation can be completed quickly and conveniently by one person, which reduces time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a trolley with a telescopic handle proposed by the utility model;

[0018] Figure 2 is a schematic diagram of the internal structure of the handle;

[0019] Figure 3 for Figure 2 A magnified view of the local structure;

[0020] Figure 4 for Figure 2 A magnified view of the structure at A;

[0021] Figure 5 This is a schematic diagram of the internal structure of the control tube, including an enlarged view of part of the structure of airbag 1.

[0022] In the figure: 1 cart, 2 legs, 3 wheels, 4 handles, 5 sleeves, 6 sliding openings, 7 sliders, 8 blocks, 9 slots, 10 fixing plates, 11 guide slots, 12 guide rods, 13 springs, 14 connecting ropes, 15 driving rods, 16 connecting plates, 17 torsion springs, 18 control tubes, 19 airbag 1, 20 control tubes, 21 rotating shafts, 22 airbag 2. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1

[0025] Reference Figure 1-4A trolley with a telescopic handle comprises a trolley 1, two legs 2 are installed at the bottom of the trolley 1, a rotating shaft 21 is also provided at the bottom of the trolley 1, wheels 3 are fixedly sleeved at both ends of the rotating shaft 21, sleeves 5 are fixedly connected to both side walls of the trolley 1, a handle 4 is slidably connected inside the sleeve 5, two sliding openings 6 are provided on the end of the handle 4 close to the trolley 1, a slider 7 is slidably connected inside the sliding opening 6, a plurality of blocks 8 are fixedly connected to the slider 7, a plurality of slots 9 adapted to the blocks 8 are provided on the inner top surface and the inner bottom surface of the sleeve 5, the slots 9 and the blocks 8 are arranged at equal intervals, and a moving component for driving the slider 7 to move is provided inside the handle 4;

[0026] The moving assembly includes a fixed plate 10 fixedly connected to the inside of the handle 4, and two guide rods 12 are fixedly connected to the top and bottom of the fixed plate 10. Two guide grooves 11 are provided on the opposite side walls of the two sliders 7. The guide rods 12 and the guide grooves 11 guide the movement of the sliders 7, so that the sliders 7 can always move in the vertical direction. A spring 13 is provided between the guide rods 12 and the guide grooves 11, and the guide rods 12 and the guide grooves 11 are elastically connected by the spring 13. Two connecting plates 16 are fixedly connected to the bottom of the handle 4, and a driving rod 15 is connected to the two connecting plates 16 for rotation. A torsion spring 17 is provided between the driving rod 15 and the connecting plate 16. A connecting rope 14 is fixed to the driving rod 15, and the connecting rope 14 is respectively fixed to the opposite side walls of the two sliders 7. The end of the handle 4 away from the trolley 1 is tilted downward, and the tilted part of the handle 4 is provided with an anti-slip sleeve, which is convenient for the staff to hold the handle 4;

[0027] Optionally, the interior of the fixed plate 10 is hollow, the portion of the connecting rope 14 between the two sliders 7 is T-shaped, and the connecting rope 14 passes through the top and bottom of the fixed plate 10, so that the force applied to the slider 7 can be in the vertical direction, ensuring that the slider 7 can move stably in the vertical direction. A roller is provided at the connection between the connecting rope 14 and the fixed plate 10, and the roller can reduce the friction between the connecting rope 14 and the fixed plate 10, saving effort while also extending the service life of the device.

[0028] Working principle: When transporting goods, the staff can push and pull the cart 1 by holding the inclined part of the handle 4. When the length of the handle 4 needs to be adjusted, the contact position between the staff's hand and the handle 4 remains unchanged, and then the staff holds the driving rod 15 to rotate the driving rod 15. The movement of the driving rod 15 will pull the connecting rope 14, so that the two sliders 7 move toward each other. At this time, the block 8 is separated from the slot 9 and moves to the inside of the handle 4 through the sliding port 6. Then the staff moves the handle 4 along the axial direction of the sleeve 5 to adjust the length of the handle 4. After the adjustment is completed, The staff releases the driving rod 15, and under the elastic force of the torsion spring 17, the driving rod 15 reverses and resets to make the connecting rope 14 in a relaxed state. Then, under the elastic force of the spring 13, the slider 7 can move up to make the block 8 fit into the inside of the slot 9, thereby fixing the handle 4. This operation process allows the staff to not need to move their own position, and the connection position between the hand and the handle 4 does not need to be changed. This reduces the work intensity and the cumbersomeness of the operation. Secondly, the two handles 4 can be adjusted at will at the same time, which can improve work efficiency and facilitate the use of the staff.

[0029] Embodiment 2

[0030] Embodiment 2 includes the contents of Embodiment 1, and the technical features disclosed in Embodiment 1 are also applicable to this embodiment. The technical features disclosed in Embodiment 1 will not be described repeatedly. The implementation method of the trolley with a telescopic handle will be further described in detail below in conjunction with the accompanying drawings.

[0031] Reference Figure 4 and Figure 5 The cart 1 is also provided with a brake assembly, which includes an airbag 22 fixedly connected between the driving rod 15 and the handle 4, a control tube 18 is connected to the airbag 22, a control tube 20 is rotatably sleeved on the rotating shaft 21, the control tube 20 is fixed to the bottom of the cart 1, an airbag 19 is fixedly connected to the inner side of the control tube 20, the control tube 18 is connected to the inside of the airbag 19, and anti-slip grooves are provided on the side wall of the airbag 19 facing the rotating shaft 21, which increases the friction between the airbag 19 and the rotating shaft 21, and the cross-section of the airbag 19 is a circular ring structure, which ensures the contact area between the airbag 19 and the rotating shaft 21, so as to ensure the stability of the airbag 19 fixed to the rotating shaft 21.

[0032] Working principle: When adjusting the length of the handle 4, the staff needs to hold the driving rod 15 to rotate the driving rod 15. During this process, the driving rod 15 will squeeze the airbag 2 22 at the same time, so that the air in the airbag 22 enters the airbag 1 19 through the control tube 18. After the airbag 19 is inflated, it will abut against the side wall of the rotating shaft 21, thereby fixing the rotating shaft 21 and the wheel 3, preventing the cart 1 from moving due to the inclined ground during the adjustment of the handle 4, which can ensure the safety of the adjustment process and make the adjustment operation more standardized.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A trolley with a telescopic handle, comprising a trolley (1), characterized in that: The bottom of the cart (1) is provided with two legs (2), the bottom of the cart (1) is also provided with a rotating shaft (21), both ends of the rotating shaft (21) are fixedly sleeved with wheels (3), both side walls of the cart (1) are fixedly connected with sleeves (5), the inside of the sleeve (5) is slidably connected with a handle (4), the handle (4) is provided with two sliding openings (6) on one end close to the cart (1), the inside of the sliding opening (6) is slidably connected with a slider (7), the slider (7) is fixedly connected with a plurality of clamping blocks (8), the inner top surface and the inner bottom surface of the sleeve (5) are provided with a plurality of clamping grooves (9) matched with the clamping blocks (8), and the inside of the handle (4) is provided with a moving component for driving the slider (7) to move.

2. A trolley with a telescopic handle according to claim 1, characterized in that: The moving assembly comprises a fixing plate (10) fixedly connected to the inside of the handle (4), two guide rods (12) being fixedly connected to the top and bottom of the fixing plate (10), two guide grooves (11) being arranged on opposite side walls of the two sliders (7), a spring (13) being arranged between the guide rods (12) and the guide grooves (11), and the guide rods (12) and the guide grooves (11) being elastically connected via the spring (13), two connecting plates (16) being fixedly connected to the bottom of the handle (4), a driving rod (15) being rotatably connected between the two connecting plates (16), a torsion spring (17) being arranged between the driving rod (15) and the connecting plate (16), a connecting rope (14) being fixed to the driving rod (15), and the connecting rope (14) being respectively fixed to opposite side walls of the two sliders (7).

3. A trolley with a telescopic handle according to claim 2, characterized in that: The cart (1) is also provided with a brake assembly, which includes an airbag 2 (22) fixedly connected between the driving rod (15) and the handle (4), the airbag 2 (22) is connected to a control tube (18), a control tube (20) is rotatably sleeved on the rotating shaft (21), the control tube (20) is fixed to the bottom of the cart (1), the inner side of the control tube (20) is fixedly connected to the airbag 1 (19), and the control tube (18) is connected to the inside of the airbag 1 (19).

4. A trolley with a telescopic handle according to claim 3, characterized in that: The end of the handle (4) away from the cart (1) is arranged to be tilted downward, and the tilted part of the handle (4) is provided with an anti-slip cover.

5. The trolley with a telescopic handle according to claim 2, characterized in that: The interior of the fixing plate (10) is hollow, the portion of the connecting rope (14) located between the two sliders (7) is in a T-shaped structure, and the connecting rope (14) passes through the top and bottom of the fixing plate (10), and a roller is provided at the connection between the connecting rope (14) and the fixing plate (10).

6. The trolley with a telescopic handle according to claim 3, characterized in that: The side wall of the airbag 1 (19) facing the rotating shaft (21) is provided with anti-slip grooves.

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