Self-weight unpowered trolley

Abstract

The utility model discloses a self-weight unpowered trolley which comprises a walking frame and a bearing shaft, the bearing shaft is movably installed in the center of the interior of the walking frame, a gear is sleeved on the surface of the bearing shaft, and a belt pulley assembly is installed on the surface of the bearing shaft on one side of the gear. Movable shafts are symmetrically and movably installed in the portion, below the bearing shaft, of the walking frame, the surfaces of the movable shafts are symmetrically sleeved with walking wheels, rails are arranged below the walking frame, the walking wheels are in sliding connection with the rails, a belt wheel assembly is connected with the movable shafts, and a storage rack is arranged above the walking frame; and four groups of supporting rods are mounted at the bottom end of the storage rack. According to the utility model, not only is convenient and fast self-weight unpowered cargo transportation realized, but also the moving speed of the trolley can be conveniently reduced in a damping manner, the side edge of the cargo can be conveniently protected, the cargo falling caused by too high instantaneous moving speed of the trolley is prevented, and the flexibility of adjustment and use of the trolley is improved.

Description

Technical Field

[0001] This utility model relates to the field of unpowered vehicle technology, specifically a self-weight unpowered vehicle. Background Technology

[0002] Currently, the assembly section of the mobile phone case production line mainly requires workers to walk back and forth to pick up and drop the bare mobile phone cases. During this process, operators need to frequently walk back and forth to carry heavy cases, which increases fatigue, affects their mood, and seriously affects work efficiency. In order to reduce or optimize the non-value-adding actions on the production line, thereby improving work efficiency and reducing operator fatigue, a self-weight, non-powered trolley is proposed.

[0003] As disclosed in the authorization announcement number CN216184451U, a non-powered self-propelled vehicle includes a frame, wheels disposed at the bottom of the frame, a drive mechanism for driving the wheels, and a transmission mechanism connecting the drive mechanism and the wheels. The drive mechanism includes a drive wheel connected to the transmission mechanism, a first pulley group disposed at one end of the drive wheel, and a second pulley group disposed at the other end of the drive wheel. The frame is provided with a material layer that is pulled up or down relative to the frame by the first pulley group, and a counterweight layer that is pulled up or down relative to the frame by the second pulley group. When the material layer is loaded with material, the material layer descends, the counterweight layer rises, and the first and second pulley groups drive the wheels forward through the drive wheel. When the material layer is unloaded, the counterweight layer descends, the material layer rises, and the first and second pulley groups drive the wheels back along the original path through the drive wheel.

[0004] Although it has achieved the replacement of manual handling operations and improved ergonomics, it has not solved the problems that existing unpowered trolleys are not conducive to convenient self-weight unpowered transportation of goods, nor to damping and slowing down the movement speed of the trolley and providing side protection for the goods, thus affecting the flexibility of the trolley's adjustment and use. Utility Model Content

[0005] The purpose of this utility model is to provide a self-weight unpowered trolley to solve the problems mentioned in the background art, such as the inconvenience of unpowered trolleys for convenient self-weight unpowered transportation of goods, the difficulty in damping and slowing down the trolley's movement speed and providing side protection for the goods, and the impact on the flexibility of the trolley's adjustment and use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A self-weight, unpowered trolley includes a walking frame and a load-bearing shaft. The load-bearing shaft is movably installed at the center of the walking frame. Gears are fitted onto the surface of the load-bearing shaft. A pulley assembly is installed on the surface of the load-bearing shaft on one side of the gears. Symmetrically movable shafts are movably installed inside the walking frame below the load-bearing shaft. Walking wheels are symmetrically fitted onto the surface of each movable shaft. A track is provided below the walking frame, and the walking wheels are slidably connected to the track. The pulley assembly is connected to a set of movable shafts. A shelf is provided above the walking frame. Four sets of support rods are installed at the bottom of the shelf, and the support rods are slidably connected to the walking frame. A base frame is installed at the bottom of the support rods. A rack is installed at the bottom of the base frame, and the rack meshes with the gears. Two sets of threaded rods are symmetrically movable on the inner wall of the walking frame. Threaded sleeves are fitted onto the surface of each threaded rod, and the threaded sleeves are threadedly connected to the threaded rods and slidably connected to the walking frame.

[0007] Preferably, two sets of damping sleeves are symmetrically installed on the outer wall of the walking frame, and the damping sleeves are movably connected to the walking frame.

[0008] Preferably, each of the damping sleeves has a damping slide rod slidably installed inside, and the damping slide rod is movably connected to the base frame.

[0009] Preferably, two sets of sleeves are symmetrically installed on the outer wall of the shelf, and a support shaft is installed at one end of each sleeve, and the sleeve is movably connected to the shelf through the support shaft.

[0010] Preferably, a connecting rod is slidably installed inside each sleeve, and a rotating arm is installed at the end of each connecting rod away from the sleeve. A protective plate is installed between the two sets of rotating arms. A pin is installed on the outer wall of each sleeve, and the pin extends through the sleeve into the interior of the connecting rod.

[0011] Preferably, each connecting rod is equipped with a pin at one end near the rotating arm, and the connecting rod is movably connected to the rotating arm via the pin.

[0012] Preferably, each of the rotating arms is equipped with a linkage shaft at the end near the shelf, and the rotating arm is movably connected to the shelf through the linkage shaft.

[0013] Preferably, springs are installed on the side walls of the threaded sleeves, and the springs are connected to the base frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the unpowered trolley not only realizes convenient self-weight unpowered transportation of goods, but also facilitates damping and deceleration of the trolley's movement speed and side protection of the goods, preventing the goods from falling off due to excessive instantaneous movement speed of the trolley, but also improves the flexibility of the trolley's adjustment and use.

[0015] (1) Place a large amount of goods on the shelf at once. Under the action of gravity, the goods drive the shelf to move downward. The shelf drives the base frame to move downward through the support rod. The base frame drives the rack to move downward. The rack drives the bearing shaft to rotate through the gear. The bearing shaft drives the movable shaft to rotate through the pulley assembly. The movable shaft drives the traveling wheel to rotate. The traveling wheel drives the goods to move. The track provides sliding limit support for the traveling wheel. While the base frame is descending, the base frame pulls the spring. The base frame drives the damping slide rod to slide inside the damping sleeve. The damping sleeve and damping slide rod provide damping and deceleration support for the descent of the base frame. When the trolley moves to the destination, the goods are taken out. Under the elastic action of the spring, the spring drives the base frame to reset. The base frame drives the rack to reset. Then the rack drives the traveling wheel to rotate in the opposite direction through the gear and pulley assembly. The traveling wheel drives the trolley to reset. Then the goods can be placed repeatedly.

[0016] (2) During the initial debugging of the trolley, in order to adjust the elasticity of the spring, the threaded rod can be rotated, which drives the threaded sleeve to move. The threaded sleeve compresses the spring, thereby adjusting the elasticity of the spring and providing a suitable elasticity to the base frame. When it is necessary to protect the goods from the side, the connecting rod is moved. The connecting rod drives the rotating arm and the protective plate to rotate around the linkage shaft through the pin. The connecting rod slides inside the sleeve, and the connecting rod drives the sleeve to rotate around the support shaft, thereby rotating the protective plate from the horizontal position to the vertical position to protect the goods from the side and prevent the goods from falling. After that, the pin is inserted to connect the sleeve and the connecting rod to complete the use of the self-weight unpowered trolley. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a side sectional view of the present invention.

[0019] Figure 3 This is a front view cross-sectional structural diagram of the threaded rod of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the connecting rod of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the damping sleeve of this utility model.

[0022] In the diagram: 1. Track; 2. Walking frame; 3. Walking wheel; 4. Movable shaft; 5. Damping sleeve; 6. Shelf; 7. Rotating arm; 8. Protective plate; 9. Support rod; 10. Pulley assembly; 11. Gear; 12. Bearing shaft; 13. Rack; 14. Threaded rod; 15. Threaded sleeve; 16. Spring; 17. Base frame; 18. Pin; 19. Connecting rod; 20. Linkage shaft; 21. Pin; 22. Sleeve; 23. Support shaft; 24. Damping slide rod. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] Please see Figure 1-5 This utility model provides an embodiment of a self-weight, unpowered trolley, comprising a walking frame 2 and a support shaft 12. The support shaft 12 is movably mounted at the center of the walking frame 2, and a gear 11 is fitted onto the surface of the support shaft 12. A pulley assembly 10 is mounted on the surface of the support shaft 12 on one side of the gear 11. Symmetrically movably mounted movable shafts 4 are located inside the walking frame 2 below the support shaft 12, and each movable shaft 4 is symmetrically fitted with a walking wheel 3. A track 1 is provided below the walking frame 2, and the walking wheels 3 are slidably connected to the track 1. 10 is connected to a set of movable shafts 4. A shelf 6 is provided above the walking frame 2. Four sets of support rods 9 are installed at the bottom of the shelf 6. The support rods 9 are slidably connected to the walking frame 2. A base frame 17 is installed at the bottom of the support rods 9. A rack 13 is installed at the bottom of the base frame 17. The rack 13 meshes with the gear 11. Two sets of threaded rods 14 are symmetrically and movably installed on the inner wall of the walking frame 2. Threaded sleeves 15 are fitted on the surface of each threaded rod 14. Threaded sleeves 15 are threadedly connected to threaded rods 14. Threaded sleeves 15 are slidably connected to the walking frame 2.

[0025] A large quantity of goods is placed on the shelf 6 at once. Under the influence of gravity, the goods move the shelf 6 downwards. The shelf 6, through the support rod 9, moves the base frame 17 downwards. The base frame 17 then moves the rack 13 downwards. With the rack 13 meshing with the gear 11, the rack 13, through the gear 11, drives the bearing shaft 12 to rotate. The bearing shaft 12, through the pulley assembly 10, drives the movable shaft 4 to rotate. The movable shaft 4 drives the traveling wheels 3 to rotate, and the traveling wheels 3 move the goods. The track 1 provides sliding limit support for the traveling wheels 3. As the trolley descends, the base frame 17 pulls the spring 16, causing the damping slide bar 24 to slide inside the damping sleeve 5. The damping sleeve 5 and the damping slide bar 24 provide damping and deceleration support for the descent of the base frame 17. After the trolley reaches its destination, the goods are removed. Under the elastic action of the spring 16, the spring 16 drives the base frame 17 to reset, and the base frame 17 drives the rack 13 to reset. Then, the rack 13 drives the traveling wheel 3 to rotate in the opposite direction through the gear 11 and the pulley assembly 10. The traveling wheel 3 drives the trolley to reset, and then the goods can be placed repeatedly.

[0026] Two sets of damping sleeves 5 are symmetrically installed on the outer wall of the walking frame 2, and the damping sleeves 5 are movably connected to the walking frame 2. The damping sleeves 5 are all slidably installed with damping rods 24 inside, and the damping rods 24 are movably connected to the base frame 17.

[0027] Two sets of sleeves 22 are symmetrically installed on the outer wall of the shelf 6. Each sleeve 22 has a support shaft 23 installed at one end, and the sleeve 22 is movably connected to the shelf 6 through the support shaft 23.

[0028] A connecting rod 19 is slidably installed inside the sleeve 22. A rotating arm 7 is installed at the end of the connecting rod 19 away from the sleeve 22, and a protective plate 8 is installed between the two sets of rotating arms 7. A pin 21 is installed on the outer wall of the sleeve 22, and the pin 21 penetrates the sleeve 22 and extends into the interior of the connecting rod 19.

[0029] Each connecting rod 19 is equipped with a pin 18 at one end near the rotating arm 7, and the connecting rod 19 is movably connected to the rotating arm 7 through the pin 18. Each rotating arm 7 is equipped with a linkage shaft 20 at one end near the shelf 6, and the rotating arm 7 is movably connected to the shelf 6 through the linkage shaft 20. Each threaded sleeve 15 is equipped with a spring 16 on its side wall, and the spring 16 is connected to the base frame 17.

[0030] During the initial debugging of the trolley, in order to adjust the elasticity of the spring 16, the threaded rod 14 can be rotated, which drives the threaded sleeve 15 to move. The threaded sleeve 15 compresses the spring 16, thereby adjusting the elasticity of the spring 16 to provide a suitable elasticity for the base frame 17. When side protection of the goods is required, the connecting rod 19 is moved. The connecting rod 19 drives the rotating arm 7 and the protective plate 8 to rotate around the linkage shaft 20 through the pin 18. The connecting rod 19 slides inside the sleeve 22, and the connecting rod 19 drives the sleeve 22 to rotate around the support shaft 23, thereby rotating the protective plate 8 from the horizontal position to the vertical position to provide side protection for the goods and prevent them from falling. After that, the pin 21 is inserted to connect the sleeve 22 and the connecting rod 19 to complete the use of the self-weight unpowered trolley.

[0031] Working principle: A large quantity of goods is placed on the shelf 6 at once. Under the action of gravity, the goods move the shelf 6 downwards. The shelf 6, through the support rod 9, moves the base frame 17 downwards. The base frame 17 then moves the rack 13 downwards. With the meshing of the rack 13 and the gear 11, the rack 13 drives the bearing shaft 12 to rotate through the gear 11. The bearing shaft 12, through the pulley assembly 10, drives the movable shaft 4 to rotate. The movable shaft 4 then drives the traveling wheels 3 to rotate. The trolley moves the goods, with the track 1 providing sliding limit support for the traveling wheels 3. As the base frame 17 descends, it pulls on the spring 16, causing the damping slide rod 24 to slide inside the damping sleeve 5. The damping sleeve 5 and the damping slide rod 24 provide damping and deceleration support for the descent of the base frame 17. Once the trolley reaches its destination and the goods are removed, the spring 16, under its elasticity, causes the base frame 17 to return to its original position, which in turn causes the rack 13 to return to its original position. The rack 13 then drives the traveling wheel 3 to rotate in the opposite direction via the gear 11 and pulley assembly 10. The traveling wheel 3 drives the trolley to reset, and then the goods can be placed repeatedly. During the initial debugging of the trolley, in order to adjust the elasticity of the spring 16, the threaded rod 14 can be rotated. The threaded rod 14 drives the threaded sleeve 15 to move, and the threaded sleeve 15 compresses the spring 16 to adjust the elasticity of the spring 16, so as to provide a moderate elasticity to the base frame 17. When it is necessary to protect the goods from the side, the connecting rod 19 is moved. The connecting rod 19 drives the rotating arm 7 and the protective plate 8 to rotate around the linkage shaft 20 via the pin shaft 18. The connecting rod 19 slides inside the sleeve 22, and the connecting rod 19 drives the sleeve 22 to rotate around the support shaft 23, so as to rotate the protective plate 8 from the horizontal position to the vertical position to protect the goods from the side and prevent the goods from falling. Then, the pin 21 is inserted to connect the sleeve 22 and the connecting rod 19 to complete the use of the self-weight unpowered trolley.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A self-weight, unpowered trolley, comprising a walking frame (2) and a load-bearing axle (12), characterized in that: A bearing shaft (12) is movably installed at the center of the walking frame (2). A gear (11) is fitted on the surface of the bearing shaft (12). A pulley assembly (10) is installed on the surface of the bearing shaft (12) on one side of the gear (11). A movable shaft (4) is symmetrically installed inside the walking frame (2) below the bearing shaft (12). A walking wheel (3) is symmetrically fitted on the surface of each movable shaft (4). A track (1) is provided below the walking frame (2), and the walking wheel (3) is slidably connected to the track (1). The pulley assembly (10) is connected to a set of movable shafts (4). A shelf (6) is provided above the walking frame (2). Four sets of support rods (9) are installed at the bottom of the shelf (6). The support rods (9) are slidably connected to the walking frame (2). A base frame (17) is installed at the bottom of the support rods (9). A rack (13) is installed at the bottom of the base frame (17). The rack (13) meshes with a gear (11). Two sets of threaded rods (14) are symmetrically and movably installed on the inner wall of the walking frame (2). The surface of each threaded rod (14) is fitted with a threaded sleeve (15). The threaded sleeve (15) is threadedly connected to the threaded rod (14). The threaded sleeve (15) is slidably connected to the walking frame (2).

2. The self-weight-free, unpowered trolley according to claim 1, characterized in that: Two sets of damping sleeves (5) are symmetrically installed on the outer wall of the walking frame (2), and the damping sleeves (5) are movably connected to the walking frame (2).

3. The self-weight-free unpowered trolley according to claim 2, characterized in that: The damping sleeve (5) is equipped with a damping rod (24) inside, and the damping rod (24) is movably connected to the base frame (17).

4. The self-weight-free, unpowered trolley according to claim 1, characterized in that: Two sets of sleeves (22) are symmetrically installed on the outer wall of the shelf (6). Each sleeve (22) has a support shaft (23) installed at one end, and the sleeve (22) is movably connected to the shelf (6) through the support shaft (23).

5. A self-weight-free, unpowered trolley according to claim 4, characterized in that: The sleeve (22) is equipped with a connecting rod (19) that slides inside. The end of the connecting rod (19) away from the sleeve (22) is equipped with a rotating arm (7), and a protective plate (8) is installed between the two sets of rotating arms (7). The outer wall of the sleeve (22) is equipped with a pin (21), and the pin (21) extends through the sleeve (22) into the interior of the connecting rod (19).

6. A self-weight-free, unpowered trolley according to claim 5, characterized in that: Each of the connecting rods (19) is equipped with a pin (18) at one end near the rotating arm (7), and the connecting rod (19) is movably connected to the rotating arm (7) through the pin (18).

7. A self-weight-free, unpowered trolley according to claim 5, characterized in that: Each of the rotating arms (7) is equipped with a linkage shaft (20) at one end near the shelf (6), and the rotating arm (7) is movably connected to the shelf (6) through the linkage shaft (20).

8. A self-weight-free, unpowered trolley according to claim 1, characterized in that: Springs (16) are installed on the side walls of the threaded sleeve (15), and the springs (16) are connected to the base frame (17).

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