A mechanical downstairs trash can

Abstract

The invention discloses a mechanical stair-climbing garbage can, comprising a garbage can body and an operating part, and a power and transmission part; the garbage can body and the operating part comprise a garbage can body (1), a running wheel (6), a push rod (11), a crank handle (10), a rocker arm (20) and a semi-circular disc (8); the bottom of the garbage can body (1) is provided with two running wheels (6); the upper part of the rear side surface is provided with a push rod (11); a semi-circular disc (8) protruding backward is formed on the left side surface below the push rod (11); the semi-circular disc (8), the crank handle (10) and the rocker arm (20) are the garbage can operating parts, which are installed on the left side surface of the garbage can body (1); other stair climbing devices are symmetrically installed on the left and right sides; the crank handle (10) drives the rocker arm (20) to drive the mechanism movement of the power and transmission part, so that the garbage can with a large load can be smoothly pushed down the stairs, which greatly reduces the labor intensity of people.

Description

Technical Field

[0001] The invention relates to a device for environmental sanitation, in particular to a mechanical downstairs garbage bin. Background Art

[0002] In some old residential areas without elevators and some multi-story teaching and office buildings without elevators, it is often seen that some sanitation workers are very laborious to carry garbage cans from upstairs to downstairs, or to carry empty garbage cans from downstairs to upstairs. Sometimes, the method of dragging is adopted, and the bottom of the can and the stairs produce strong collisions and strong noises, especially for some older sanitation workers or cleaners. Generally, it is OK to do sanitation, but it is very difficult to carry garbage cans upstairs and downstairs. Even if it is not too heavy, it is very difficult to carry empty garbage cans to higher floors, and it is even more difficult to transport loaded garbage cans from upstairs to downstairs. If garbage such as house maintenance is carried downstairs by hand, it is also inconvenient to put it down and rest in the middle. It can only be carried downstairs, which requires a lot of physical strength and is not safe. Therefore, there is an urgent need for a simple and convenient garbage can that can climb stairs, which can easily and conveniently carry garbage from the stairs to the downstairs. Summary of the invention

[0003] The purpose of the present invention is to solve the difficulties in the background technology and provide a mechanical downstairs trash can with a simple structure, which can easily and quickly carry trash cans up and down stairs, especially to carry trash cans filled with trash from upstairs to downstairs via stairs, thereby reducing the labor intensity of people.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A mechanical downstairs trash can of the present invention, such as Figure 1 , Figure 2 As shown, it includes a barrel body and an operating part, a power and transmission part, and an execution part; the barrel body and the operating part include a trash can body 1, a walking wheel 6, a push rod 11, a crank handle 10, a rocker arm 20 and a semi-circular disc 8;

[0006] The bottom rear side of the trash can body 1 is provided with two running wheels 6, the bottom of the running wheels 6 is flush with the protrusion at the bottom of the front side of the trash can body 1, and the upper part of the rear side is provided with a push rod 11; a semi-circular disc 8 protruding backwards is formed on the left side surface below the push rod 11, and 7-9 circular holes 9 are evenly distributed on the semi-circular disc 8. After the crank 10 passes through the axial hole at one end of the rocker arm 20, it can slide in the axial hole but will not fall out, and the other end of the rocker arm 20 is connected to the component of the power and transmission part; the semi-circular disc 8, the crank 10, and the rocker arm 20 are the operating parts of the trash can, and the operating part is installed on the left side surface of the trash can body 1, and the other stair climbing devices are symmetrically installed on the left and right sides. The crank 10 drives the rocker arm 20 to drive the mechanism of the power and transmission part to move, and the execution part realizes the work of the trash can going up or down the stairs, and the end of the crank 10 can be inserted into the circular hole 9 on the semi-circular disc 8 at any time, so that the trash can body 1 is in a locked state.

[0007] The power and transmission parts are as follows Figure 1 , Figure 2 As shown, it includes a guide tube 2, a fixing seat 3, a support rod 4, an incomplete gear 7, a circular hole 9, a rack 12, a shoulder 13, a stop pin 21, and a long shaft 22;

[0008] The long shaft 22 is installed inside the rear side surface of the upper part of the trash can body 1, and the protruding ends on both sides are fixedly connected to the incomplete gear 7. After the protruding end on the left passes through the incomplete gear 7, it is connected to the rocker arm 20 through the stop pin 21.

[0009] A guide tube 2 is formed on the middle of both sides of the trash can body 1, and a fixed seat 3 is formed on the lower part. The support rod 4 passes through the guide tube 2 and the center hole of the fixed seat 3 and can slide up and down in the center hole. A boss 13 is formed in the middle of the support rod 4, and the bottom of the boss 13 and the bottom of the support rod 4 are connected to the components of the execution part.

[0010] The upper end of the support rod 4 is formed into a chamfered surface on one side close to the incomplete gear 7, and a rack 12 is formed on the chamfered surface. The rack 12 is meshed with the incomplete gear 7. When the crank 10 is turned by hand, the long shaft 22 and the incomplete gear 7 are driven to rotate through the rocker arm 20, and the incomplete gear 7 drives the rack 12 to move up and down, so that the support rod 4 moves up and down intermittently.

[0011] The execution part is as follows Figure 6 As shown, it includes a supporting wheel 5, a rotating shaft 29, a rubber ring 30, a switching device 19 and a damping device. The supporting wheel 5 is installed on the lower end of the supporting rod 4 through the rotating shaft 29, and the outer ring of the supporting wheel 5 is fixedly connected to the rubber ring 30.

[0012] The switching device 19 is as follows Figure 3 , Figure 4As shown, it includes a spring 14, a handle 24, and a switching cover 17; the spring 14 is sleeved on the support rod 4, the upper end of which is fixedly connected to the lower end surface of the boss 13, and the lower end is fixedly connected to the handle 24;

[0013] The handle 24 is provided with a ring, which is sleeved on the support rod 4 and can slide on the support rod 4 .

[0014] The switching cover 17 is in the shape of a stepped cylinder, with a chamfered surface at the rear end fixed on the side of the trash can body 1, a notch 23 at the outer end of the bottom cylinder, a cylindrical hole in the middle of the bottom for slidingly fitting with the support rod 4, a gap between the upper cylinder and the support rod 4, the spring 14 and the ring of the handle 24 can be embedded in the gap, a vertical notch is processed on the upper cylinder to connect the upper groove 25 and the lower groove 26, the handle 24 can slide up and down in the vertical notch of the upper cylinder and be placed in the semicircular grooves of the upper groove 25 and the lower groove 26 respectively, when the handle 24 is in the upper groove 25, the spring 14 is compressed, and when the handle 24 is in the lower groove 26, the spring 14 is stretched.

[0015] The damping device includes a damping cylinder 15, a damping plate 16, a water filling hole 18, a throttling hole 27, and an adjusting plate 28. The damping tube 15 is fixedly installed between the switching device 19 and the fixed seat 3. The support rod 4 passes through the damping cylinder 15. The damping plate 16 is fixedly installed on the support rod 4, and its outer edge is clearance-matched with the inner wall of the damping cylinder 15. The damping plate 16 has a throttling hole 27, and an adjusting plate 28 is provided to adjust the size of the throttling hole 27.

[0016] The upper part of the damping cylinder 15 is provided with a water filling hole 18 at a position corresponding to the notch 23 on the switching cover 17 .

[0017] It can be seen from the technical solution provided by the present invention that the beneficial effects of the mechanical stair-down trash can described in the present invention are: (1) by turning the handle 10, a trash can with a smaller load can be pulled directly up the stairs; (2) a trash can with a larger load can be smoothly pushed down the stairs, which greatly reduces the labor intensity of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of the structure of a mechanical downstairs trash can.

[0019] Figure 2 The present invention is a schematic diagram of the structure of the power transmission part of a mechanical downstairs trash can.

[0020] Figure 3 The present invention is a schematic structural diagram of a mechanical downstairs trash can switching device.

[0021] Figure 4The present invention is a schematic diagram of a mechanical downstairs trash can switch cover structure.

[0022] Figure 5 The present invention is a schematic diagram of a mechanical stair-down trash can damping plate structure.

[0023] Figure 6 The present invention is a schematic diagram of the connection of the supporting wheels of a mechanical downstairs trash can.

[0024] In the figure: 1, trash can body, 2, guide tube, 3, fixed seat, 4, support rod, 5, support wheel, 6, walking wheel, 7, incomplete gear, 8, semi-circular disk, 9, round hole, 10, rocker handle, 11, push rod, 12, rack, 13, shoulder, 14, spring, 15, damping cylinder, 16, damping plate, 17, switching cover, 18, water filling hole, 19, switching device, 20, rocker arm, 21, stop pin, 22, long axis, 23, notch, 24, handle, 25, go upstairs, 26, go downstairs, 27, throttle hole, 28, adjustment plate, 29, rotating shaft, 30, rubber ring. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention 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, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0026] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0027] A mechanical stair-climbing trash can of the present invention, as shown in the accompanying drawings, includes a barrel body and an operating part, a power and transmission part, an execution part, and a stopping device. The barrel body and the operating part include a trash can body 1, a walking wheel 6, a push rod 11, a crank 10, a rocker arm 20 and a semi-circular disc 8, wherein the semi-circular disc 8, the crank 10, and the rocker arm 20 are the trash can operating part, and the operating part is installed on the left side surface of the trash can body 1, and other stair climbing devices are symmetrically installed on the left and right sides of the trash can body 1; the bottom of the walking wheel 6 is flush with the bottom protrusion of the front side of the trash can body 1, so that the trash can can touch the ground at four points when parked and be stably placed, and can be pushed or pulled on flat ground after being slightly tilted to the rear.

[0028] The power and transmission part includes a guide tube 2, a fixed seat 3, a support rod 4, an incomplete gear 7, a circular hole 9, a rack 12, a boss 13, a stop pin 21, and a long shaft 22. The long shaft 22 is installed inside the rear side surface of the upper part of the trash can body 1, and the protruding ends on both sides are fixedly connected to the incomplete gear 7. After the protruding end on the left passes through the incomplete gear 7, it is connected to the rocker arm 20 through the stop pin 21. The main function of this part of the structure is to drive the long shaft 22 and the incomplete gear 7 to rotate through the rocker arm 20, and the incomplete gear 7 drives the rack 12, so that the support rod 4 moves up and down intermittently.

[0029] The execution part includes a supporting wheel 5, a rotating shaft 29, a rubber ring 30, a switching device 19 and a damping device. The rubber ring can increase the friction between the supporting wheel 5 and the ground.

[0030] The switching device 19 includes a spring 14, a handle 24, and a switching cover 17. The switching cover 17 is formed by superimposing two stepped cylinders. The handle 24 can slide up and down in the vertical notch of the upper cylinder and be placed in the semicircular grooves of the upper stair groove 25 and the lower stair groove 26 respectively. When the handle 24 is in the upper stair groove 25, the spring 14 is compressed. Therefore, when going upstairs, the spring 14 always pushes the support rod 4 upward, and when the handle 24 is in the lower stair groove 26, the spring 14 always pulls the support rod 4 downward.

[0031] The damping device includes a damping cylinder 15, a damping plate 16, a water filling hole 18, a throttle hole 27, and an adjusting plate 28. When the support rod 4 is suddenly subjected to upward and downward forces, the damping device will act as a buffer. The size of the throttle hole 27 can be adjusted by the adjusting plate 28 to change the movement speed of the support rod 4. The liquid contained in the damping cylinder can be water or oil. A sealing ring can be used to seal the upper and lower bottom surfaces of the damping cylinder 15 at the contact points with the support rod to prevent the liquid from flowing out.

[0032] The working process is divided into two situations:

[0033] 1. Pull the trash can up the stairs

[0034] First, the handle 24 is placed in the upper groove 25 of the switching cover 17, and the spring 14 is in a compressed state, and the spring 14 always pushes the support rod 4 upward. The operator pulls the trolley to the edge of the stairs. When the two running wheels 6 at the rear side come into contact with the steps, the operator shakes the crank handle 10 with one hand and slightly pulls the push rod 11 upwards. The crank handle 10 drives the rocker arm 20 and the long shaft 22 to rotate, and the long shaft 22 drives the incomplete gears 7 on both sides of the trash can to rotate. When the toothed part of the incomplete gear 7 comes into contact with the rack 12, the shoulder 13 under the rack 12 compresses the spring 14, so that the support rod 4 moves downward, and the support wheel 5 moves downward to push the trash can body 1 upward. When the bottom of the running wheel 6 is at the same height as the previous step surface, the push rod 11 is pulled, and the support wheel 5 rotates forward to pull the trash can onto the step. Continue to shake the crank handle 10, then the toothless part of the incomplete gear 7 just turns to the relative position with the rack 12, the meshing of the rack 12 and the incomplete gear 7 is disengaged, and the support rod 4 moves upward to the initial position under the restoring force of the spring 14; when the running wheel 6 comes into contact with the previous step again, the above action is repeated until the trash can is pulled to the home upstairs.

[0035] In this process, since the manual operation speed is very slow, the support rod moves at a low speed, and the resistance of the damping device is very small. If you need to pause and rest when going upstairs, you can insert the crank 10 into the round hole 9 on the semicircular disk 8, then the trash can is locked, and you can hold the push rod 11 to take a short rest.

[0036] 2. Push the trash can down the stairs

[0037] The handle 24 of the switching device 19 is placed in the lower stair groove 26, and the spring 14 is in a stretched state. The spring 14 always pulls the support rod 4 downward, and the support wheel 5 also touches the ground at the same time as the walking wheel 6; at the position where the incomplete gear 7 is disconnected from the rack 12, the crank 10 is inserted into the circular hole 9 on the semi-circular disk 8.

[0038] When the trash can is pushed downstairs, after the supporting wheel 5 passes over the edge of the current step of the stairs, the supporting rod 4 drives the supporting wheel 5 to move down to contact the next step under the pulling force of the spring 14. When the rear running wheel 6 also moves and jumps down the current step, the garbage can body 1 will move down quickly because all the gravity is transferred to the supporting wheel 6. However, due to the damping effect generated by the damping device, the relative movement of the garbage can body 1 relative to the supporting rod 4 becomes slow, so that the rear running wheel 6 of the garbage can body 1 slowly falls on the surface of the next step without causing impact. The speed of the garbage can body 1 moving down can be adjusted by adjusting the opening size of the throttle hole 27. Then push the garbage can to the edge of the next step, repeat the above operation, and the garbage can can be smoothly moved downstairs.

[0039] When pushing the trash can down the stairs, it is only necessary to push the push rod 11 steadily without other operations, which is very safe and labor-saving. Such a device can also be used in other machines and equipment that are specially used to carry objects from upstairs to downstairs.

[0040] If the trash can needs to be moved on the flat ground, the handle 24 of the switching device 19 only needs to be placed in the upper stair groove 25, and the support rod 4 is lifted upward without affecting the movement of the trash can on the flat ground.

[0041] When shopping in the market, people often need to walk on roads with steps. A mechanical stair-down trash can can not only be used for climbing stairs, but also for walking on roads with steps, saving time and effort.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A mechanical downstairs trash can, characterized in that: It includes barrel body and operating part, power and transmission part, and execution part; The barrel body and operating part include a trash can body (1), a running wheel (6), a push rod (11), a crank handle (10), a rocker arm (20) and a semi-circular disc (8). The bottom rear side of the trash can body (1) is provided with two running wheels (6), the upper part of the rear side is provided with a push rod (11), a semi-circular disc (8) protruding backwards is formed on the left side below the push rod (11), 7-9 round holes (9) are evenly distributed on the semi-circular disc (8), and after the crank handle (10) passes through the shaft hole at one end of the rocker arm (20), it can slide in the shaft hole but will not fall out, and the other end of the rocker arm (20) is connected to the components of the power and transmission part; The semi-circular disc (8), the crank handle (10) and the rocker arm (20) are the operating parts of the trash can. The operating part is installed on the left side of the trash can body (1). Other stair climbing devices are symmetrically installed on the left and right sides. The crank handle (10) drives the rocker arm (20) to drive the power and transmission part to move, and the execution part realizes the work of the trash can going up or down the stairs. The end of the crank handle (10) can be inserted into the round hole (9) on the semi-circular disc (8) at any time, so that the trash can body (1) is in a locked state. The power and transmission part comprises a guide tube (2), a fixing seat (3), a support rod (4), an incomplete gear (7), a circular hole (9), a rack (12), a boss (13), a stop pin (21), and a long shaft (22); The long shaft (22) is installed inside the rear side surface of the upper part of the trash can body (1), and the protruding ends on both sides are fixedly connected to the incomplete gear (7), and the protruding end on the left side passes through the incomplete gear (7) and is connected to the rocker arm (20) through the stop pin (21); The trash can body (1) is provided with a guide tube (2) on the middle of the two side surfaces and a fixing seat (3) on the lower part. The support rod (4) passes through the central hole of the guide tube (2) and the fixing seat (3) and can slide up and down in the central hole. A boss (13) is provided in the middle of the support rod (4). The lower part of the boss (13) and the bottom of the support rod (4) are connected to the components of the execution part. A chamfered surface is formed on the upper end of the support rod (4) near the side of the incomplete gear (7), and a rack (12) is formed on the chamfered surface. The rack (12) and the incomplete gear (7) are meshed with each other. When the crank (10) is turned by hand, the long shaft (22) and the incomplete gear (7) are driven to rotate through the rocker arm (20), and the incomplete gear (7) drives the rack (12), so that the support rod (4) intermittently moves up and down; The execution part comprises a supporting wheel (5), a rotating shaft (29), a rubber ring (30), a switching device (19) and a damping device. The supporting wheel (5) is mounted on the lower end of the supporting rod (4) via the rotating shaft (29). The outer ring of the supporting wheel (5) is fixedly connected to the rubber ring (30). The damping device cooperates with the supporting rod (4) and is placed on the fixing seat (3). The switching device (19) cooperates with the supporting rod (4) and is placed on the damping device. The switching device (19) comprises a spring (14), a handle (24), and a switching cover (17). The spring (14) is sleeved on the support rod (4), the upper end of which is fixedly connected to the lower end surface of the boss (13), and the lower end of which is fixedly connected to the handle (24). The switching cover (17) is placed on the damping device to determine the position of the handle. The handle (24) is provided with a ring, which is sleeved on the support rod (4) and can slide on the support rod (4); The switching cover (17) is in the shape of a stepped cylinder, with a chamfered surface at the rear end fixed on the side of the trash can body (1), a notch (23) at the outer end of the bottom cylinder, a cylindrical hole in the middle of the bottom to match the support rod (4), a gap between the upper cylinder and the support rod (4), the spring (14) and the ring of the handle (24) can be embedded in the gap, a vertical notch is processed on the upper cylinder to connect the upper floor groove (25) and the lower floor groove (26), the handle (24) can slide up and down in the vertical notch of the upper cylinder and be placed in the semicircular grooves of the upper floor groove (25) and the lower floor groove (26) respectively, when the handle (24) is in the upper floor groove (25), the spring (14) is compressed, when the handle (24) is in the lower floor groove (26), the spring (14) is stretched; Using the above device, the operation process of pushing the trash can down the stairs is as follows: The handle (24) of the switching device (19) is placed in the downstairs groove (26), the spring (14) is in a stretched state, the spring (14) always pulls the support rod (4) downward, and the support wheel (5) and the running wheel (6) touch the ground at the same time; at the position where the incomplete gear (7) is disconnected from the rack (12), the crank handle (10) is inserted into the circular hole (9) on the semi-circular disk (8); When the trash can is pushed downstairs, after the supporting wheel (5) passes over the edge of the current step of the stairs, the supporting rod (4) drives the supporting wheel (5) to move down to contact the next step under the pulling force of the spring (14). When the rear running wheel (6) also moves and jumps off the current step, the garbage can body (1) will move down quickly because all the gravity is transferred to the supporting wheel (5). However, due to the damping effect generated by the damping device, the relative movement of the garbage can body (1) relative to the supporting rod (4) becomes slow, so that the rear running wheel (6) of the garbage can body (1) slowly falls on the surface of the next step without causing any impact. Then, the garbage can is pushed to the edge of the next step. The above operation is repeated, and the garbage can can be smoothly moved downstairs.

2. A mechanical downstairs trash can according to claim 1, characterized in that: The damping device comprises a damping cylinder (15), a damping plate (16), a water filling hole (18), a throttle hole (27), and an adjusting plate (28). The damping cylinder (15) is fixedly mounted between the switching cover (17) and the fixing seat (3). The supporting rod (4) passes through the damping cylinder (15). The damping plate (16) is fixedly mounted on the supporting rod (4). The outer edge of the damping plate (16) is clearance-matched with the inner wall of the damping cylinder (15). The damping plate (16) is provided with a throttle hole (27), and an adjusting plate (28) is provided to adjust the size of the throttle hole. The water supply hole (18) is located at the upper part of the damping cylinder (15), corresponding to the position of the notch (23) on the switching cover (17).

Images