Dust cart

Abstract

The utility model provides a dust cart, which solves the problem of how to adjust the pressure of a mop head of the dust cart on the premise of ensuring stability and reliability. The mop head of the dust cart is hinged to the cross beam at the bottom of the cart frame, the sliding block is slidably connected to the bottom of the cross beam, the sliding block and the mop head are connected through the elastic piece, and due to the fact that the sliding block slides in the single direction, and the rotation direction of the mop head is constant, the mop head can rotate stably. Due to the fact that the elastic piece is arranged on the mop head, the acting direction of force in the stretching and retracting process of the elastic piece is very stable and reliable, the elastic force of the elastic piece acting on the mop head can be indirectly changed by driving the sliding block to slide through the driving piece, the pressure of the mop head is adjusted, and the pressure of the mop head is adjustable on the premise that stability and reliability are guaranteed through the design.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust pushers and relates to a dust pusher. Background Art

[0002] A dust pusher is a battery-powered, single-operator, specialized cleaning machine that efficiently cleans floors by pushing a mop-like dust collection rack. It is widely used in airport terminals, train stations, shopping malls, factory floors, logistics warehouses, and other environments. With rising labor costs, electric dust pushers are gaining popularity due to their significant labor savings.

[0003] The existing dust cart can be modified from an electric scooter. Generally, a self-locking link is installed on the front bar of the electric scooter, and a mop is fixed at the end of the self-locking link. The angle of the self-locking link is adjusted to ensure that the mop is in contact with the ground. The self-locking link is locked, and the scooter can be started to mop the floor.

[0004] Of course, in order to ensure a better mopping effect, a tension spring is often installed between the self-locking link and the front bumper of the vehicle. The elastic force acts on the self-locking link to keep the self-locking link in a downward movement trend, so that the mop can better contact the ground.

[0005] However, such a solution is too simple. In actual implementation, there are problems such as the elastic force provided by the tension spring is single and cannot be adjusted, and the ability to cope with different scenarios is insufficient. In addition, the elastic force of a single tension spring is insufficient to provide cleaning for floors that require greater cleaning force. Utility Model Content

[0006] In view of the above problems existing in the prior art, the utility model proposes a dust pusher, which solves the technical problem of how to achieve pressure adjustment of the mop head of the dust pusher under the premise of ensuring stability and reliability.

[0007] The purpose of this utility model can be achieved through the following technical solutions:

[0008] A dust cart comprises a frame with wheels, a crossbeam and a longitudinal beam at the bottom of the frame, a mop head being hinged to the front end of the crossbeam, and the mop head being able to rotate up and down, and is characterized in that a slider is slidably connected to the bottom of the crossbeam, the slider being able to move in the length direction of the crossbeam, an elastic member which can be retracted to change the elasticity is provided between the slider and the mop head, the two ends of the elastic member being respectively connected to the slider and the mop head, and the elastic member always maintains a tendency to contract, and a driving member which can drive the slider to move is provided on the frame.

[0009] The mop head of the dust pusher of the present application is hingedly connected to the bottom crossbeam of the frame, and a slider is slidably connected to the bottom of the crossbeam. An elastic member is used to connect the slider and the mop head. Since the slider slides in a single direction and the rotation direction of the mop head is constant, the direction of the force applied by the elastic member during the extension and retraction process is very stable and reliable. The sliding of the slider driven by the driving member can indirectly change the elastic force of the elastic member on the mop head, thereby adjusting the pressure of the mop head. This design realizes the adjustable pressure of the mop head while ensuring stability and reliability.

[0010] In the above-mentioned dust pusher, a linear guide rail is fixed to the bottom of the beam along its length direction. The linear guide rail includes a sliding track and the above-mentioned slider. One side of the slider is connected to the elastic member and the other side is connected to the driving member. The driving member can drive the slider to move and drive the elastic member to extend and retract.

[0011] The slider of the present application is a slider on a linear guide rail, which is directly fixed to the bottom of the beam. The slider is supported by the slide rail and slides very stably and has reliable connection strength. This design further improves the telescopic stability of the elastic part, allowing the mop head to achieve pressure adjustment while ensuring stability.

[0012] In the above-mentioned dust pusher, the elastic member is a tension spring, both ends of which are connected to a steel wire rope 1, and are respectively fixed to the mop head and the slider through the steel wire rope 1 at both ends.

[0013] The elastic part of the present application is a tension spring, and the two ends of the tension spring are connected to the mop head and the slider through a steel wire rope as a connecting part. The steel wire rope has good toughness and strength, and the steel wire rope can be bent and deformed. The overall arrangement direction of the tension spring can be adaptively adjusted according to the actual connection position of the slider and the mop head, so that the direction of the elastic force of the tension spring is more stable to better adapt to the pressure adjustment of the mop head.

[0014] In the above-mentioned dust pusher, the output end of the driving member is connected to a second steel wire rope and is fixed to the sliding block via the second steel wire rope.

[0015] The driving member is connected to the slider through the second steel wire rope. Similarly, the second steel wire rope can also adaptively adjust the position between the output end of the driving member and the slider, so that the driving member can better drive the slider to slide stably.

[0016] In the above-mentioned dust pusher, the first steel rope and the second steel rope are both arranged to extend in the length direction of the crossbeam.

[0017] The steel wire rope 1 and steel wire rope 2 of the present application are both extended in the length direction of the beam. This design makes the output end of the driving part, the sliding direction of the slider and the extension and contraction direction of the tension spring basically consistent, so that the overall power transmission is more stable and reliable, and the elastic force of the tension spring is more stable, thereby achieving pressure adjustment of the mop head while ensuring stability.

[0018] In the above-mentioned dust cart, the driving member is an electric push rod, which is fixed at the bottom of the beam and located near the rear end of the frame. The push rod of the electric push rod is arranged along the length direction of the beam and is located in the extension direction of the moving path of the slider.

[0019] This application uses an electric push rod as a driving part for adjusting the elastic force of the tension spring, and the arrangement direction of the electric push rod is consistent with the movement direction of the slider and the extension and contraction direction of the tension spring. In this way, the extension and contraction of the electric push rod directly drives the slider to move in the same direction, so that the force is more stable and more conducive to the overall pressure adjustment.

[0020] In the above-mentioned dust pusher, the driving part is a roller motor, which includes a motor and a roller. The roller is fixed on the output shaft of the motor, and the motor can drive the roller to rotate. The wire rope 2 is fixed on the roller and is driven by the roller to be wound around the roller.

[0021] This is another embodiment of the driving member of the present application. In this embodiment, the driving member is a motor and a roller. The rotation of the motor drives the roller to rotate. The second steel wire rope is wound around the roller. The rotation of the roller can retract and release the second steel wire rope, thereby driving the tension spring to expand and contract. This design can achieve a technical effect similar to that of an electric push rod.

[0022] In the above-mentioned dust pusher, the mop head includes a shaft and a mop head, the shaft and the mop head are hingedly connected, and a rotatable range of 120 degrees is provided between the shaft and the mop head.

[0023] The mop head of the present application is divided into two parts, a shaft and a mop head. The shaft and the mop head are hingedly connected and have a 120-degree rotation range between the two. This design allows the angle relationship between the shaft and the mop head to be adaptively adjusted after the pressure of the mop head is adjusted, so that the mop head can always maintain a vertical contact relationship with the ground, preventing deviation and making it more conducive to cleaning the ground.

[0024] In the above-mentioned dust pusher, the shaft is hinged to the crossbeam, and a connecting portion is protruded from the shaft at the bottom position near the hinge axis. The connecting portion has a connecting hole. The height of the connecting hole is lower than or flush with the height position of the slider, and the elastic member is connected to the connecting hole.

[0025] The present application has a connecting portion protruding from the shaft rod, which protrudes downward. The main function of the connecting portion design is to keep the elastic part in a horizontal direction as much as possible, so that the direction of the elastic part and the sliding direction of the slider remain relatively consistent, so that the elastic part is subjected to more stable force during extension and contraction, and pressure regulation can be achieved stably.

[0026] In the above-mentioned dust pusher, the dust pusher also includes a handheld Bluetooth controller, which has a control button for operating the electric push rod, and the handheld Bluetooth controller also has a gear button for adjusting the electric push rod to a set gear.

[0027] The electric push rod of the dust pusher of the present application is controlled and driven by a handheld Bluetooth controller. The handheld Bluetooth controller has two driving modes: one is stepless adjustment and the other is gear adjustment. Stepless adjustment allows the electric push rod to be extended and retracted to any travel position by using two control buttons, forward and reverse, which provides good adaptability. Gear adjustment is achieved by using a number of gear buttons. By pressing a specific gear button, the electric push rod is directly adjusted to the travel position of the gear, which makes adjustment convenient, fast, and highly accurate.

[0028] Compared with existing technologies, the advantages of this product are:

[0029] 1. This dust cart has a slider slidably connected to the bottom of the crossbeam. An elastic member is used to connect the slider to the mop head. The driving member drives the slider to slide, which can indirectly change the elastic force of the elastic member on the mop head, thereby adjusting the pressure of the mop head. This design realizes the adjustable pressure of the mop head while ensuring stability and reliability.

[0030] 2. The handheld Bluetooth controller of this application has two driving modes, one is stepless adjustment and the other is gear adjustment. Stepless adjustment is to allow the electric push rod to extend or retract to any stroke position through the forward and reverse control buttons, and has good adaptability. Gear adjustment is achieved through several gear buttons. By pressing the specified gear button, the electric push rod is directly adjusted to the stroke of the gear. This makes the adjustment convenient, fast and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural sectional view of the utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0033] Figure 3 It is a structural diagram of the handheld Bluetooth controller of the present utility model.

[0034] In the figure: 1. Frame; 11. Crossbeam; 12. Longitudinal beam; 2. Mop head; 21. Shaft; 22. Mop head; 23. Connecting part; 3. Linear guide; 31. Slider; 32. Slide track; 4. Elastic member; 5. Driving member; 6. Wire rope 1; 7. Wire rope 2; 8. Handheld Bluetooth controller; 81. Control button; 82. Gear button. DETAILED DESCRIPTION

[0035] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0036] Example 1

[0037] like Figure 1-Figure 3 The dust cart shown in the figure includes a frame 1 with wheels, a seat and a steering handle on the frame 1, a crossbeam 11 and a longitudinal beam 12 at the bottom of the frame 1, a mop head 2 is hinged to the front end of the crossbeam 11, and the mop head 2 can rotate up and down, a slider 31 is slidably connected to the bottom of the crossbeam 11, and the slider 31 can move in the length direction of the crossbeam 11, an elastic member 4 that can change its elasticity by extension and contraction is provided between the slider 31 and the mop head 2, the two ends of the elastic member 4 are respectively connected to the slider 31 and the mop head 2, and the elastic member 4 always maintains a tendency to contract, and a driving member 5 that can drive the slider 31 to move is provided on the frame 1. The mop head 2 of the dust pusher of the present application is hingedly connected to the bottom crossbeam 11 of the frame 1, and a slider 31 is slidably connected to the bottom of the crossbeam 11. An elastic member 4 is used to connect the slider 31 and the mop head 2. Since the slider 31 slides in a single direction and the rotation direction of the mop head 2 is constant, the direction of the force applied by the elastic member 4 during the extension and contraction process is very stable and reliable. The sliding of the slider 31 driven by the driving member 5 can indirectly change the elastic force of the elastic member 4 on the mop head 2, thereby adjusting the pressure of the mop head 2. This design realizes the adjustable pressure of the mop head 2 while ensuring stability and reliability.

[0038] Furthermore, a linear guide rail 3 is fixed along the length of the bottom of the crossbeam 11. The linear guide rail 3 includes a slide rail 32 and the aforementioned slider 31. The slider 31 is connected to the elastic member 4 on one side and to the driving member 5 on the other side. The driving member 5 can drive the slider 31 to move and cause the elastic member 4 to expand and contract. The slider 31 of the present application is a slider 31 on the linear guide rail 3. The linear guide rail 3 is directly fixed to the bottom of the crossbeam 11. The slider 31 is supported by the slide rail 32, and its sliding is very stable and the connection strength is reliable. This design further improves the expansion and contraction stability of the elastic member 4, allowing the mop head 2 to achieve pressure adjustment while ensuring stability.

[0039] Furthermore, the elastic member 4 is a tension spring, with steel wire ropes 6 connected to both ends of the tension spring, which are respectively fixed to the mop head 2 and the slider 31 via the steel wire ropes 6 at both ends. The elastic member 4 of the present application is a tension spring, and the two ends of the tension spring are connected to the mop head 2 and the slider 31 via steel wire ropes 6 as connecting members. The steel wire ropes 6 have good toughness and strength, and are bendable and deformable. The overall arrangement direction of the tension spring can be adjusted adaptively according to the actual connection position of the slider 31 and the mop head 2, making the direction of the tension spring's elastic force more stable and more suitable for pressure adjustment of the mop head 2.

[0040] Furthermore, the output end of the driver 5 is connected to a wire rope 2 7, which is fixed to the slider 31 via the wire rope 2 7. The driver 5 is connected to the slider 31 via the wire rope 2 7. Similarly, the wire rope 2 7 can also adaptively adjust the position between the output end of the driver 5 and the slider 31, so that the driver 5 can better drive the slider 31 to slide stably.

[0041] Furthermore, both the steel wire rope 1 6 and the steel wire rope 2 7 are arranged to extend in the length direction of the crossbeam 11. This design allows the output end of the driver 5, the sliding direction of the slider 31, and the expansion and contraction direction of the tension spring to be substantially consistent. This makes the overall power transmission more stable and reliable, and also makes the elastic force of the tension spring more stable, thus achieving pressure adjustment of the mop head 2 while ensuring stability.

[0042] Furthermore, the driving member 5 is an electric push rod, which is fixed to the bottom of the crossbeam 11 and located near the rear end of the frame 1. The push rod of the electric push rod is arranged along the length of the crossbeam 11 and is located in the extension direction of the movement path of the slider 31. The present application uses an electric push rod as the driving member 5 for adjusting the elastic force of the tension spring, and the arrangement direction of the electric push rod is consistent with the movement direction of the slider 31 and the expansion and contraction direction of the tension spring. In this way, the expansion and contraction of the electric push rod directly drives the slider 31 to move in the same direction, so that the force is more stable and more conducive to overall pressure adjustment.

[0043] Furthermore, the mop head 2 includes a shaft 21 and a drag head 22, which are hingedly connected to each other and have a 120-degree rotation range between them. The bottom of the drag head 22 is detachably connected to the mop cloth, and the specific detachable method can be gluing or clamping. The mop head 2 of the present application is divided into two parts: the shaft 21 and the drag head 22. The shaft 21 and the drag head 22 are hingedly connected and have a 120-degree rotation range between them. This design allows the angular relationship between the shaft 21 and the drag head 22 to be adaptively adjusted after the pressure of the mop head 2 is adjusted, so that the drag head 22 can always maintain a vertical contact relationship with the ground, preventing deviation and making it more conducive to cleaning the ground.

[0044] Furthermore, the shaft 21 is hinged to the crossbeam 11. A connecting portion 23 protrudes from the shaft 21 at the bottom near the hinge axis. The connecting portion 23 has a connecting hole. The height of the connecting hole is lower than or flush with the height of the slider 31. The elastic member 4 is connected to the connecting hole. In this application, the connecting portion 23 protrudes from the shaft 21. The connecting portion 23 protrudes downward. The main function of the design of the connecting portion 23 is to keep the elastic member 4 in a horizontal orientation as much as possible, so that the direction of the elastic member 4 remains relatively consistent with the sliding direction of the slider 31. In this way, the elastic member 4 is subjected to more stable force during expansion and contraction, and stable pressure regulation is achieved.

[0045] Furthermore, the dust cart also includes a handheld Bluetooth controller 8, which has a display screen, a circuit component electrically connected to the display screen, a Bluetooth signal transceiver, and a pressure sensor installed at the position of the drag head 22. The pressure sensor is connected to the Bluetooth signal transceiver signal. The pressure sensor can detect the pressure between the drag head 22 and the ground in real time and display it on the display screen. The handheld Bluetooth controller 8 also has a voice broadcast device, which is convenient for older users to use. Then, the handheld Bluetooth controller 8 has a control button 81 for operating the electric push rod, and the handheld Bluetooth controller 8 also has a gear button 82 for adjusting the electric push rod to a set gear. The electric push rod of the dust cart of the present application is controlled and driven by the handheld Bluetooth controller 8. The handheld Bluetooth controller 8 has two driving modes: one is stepless adjustment and the other is gear adjustment. Stepless adjustment is to allow the electric push rod to be extended and retracted to any travel position by using the two control buttons 81 for forward and reverse, which has good adaptability. The gear adjustment is achieved through a plurality of gear buttons 82. By pressing a designated gear button 82, the electric push rod is directly adjusted to the stroke of the gear. This makes the adjustment convenient, fast and accurate.

[0046] Example 2

[0047] This is another embodiment of the drive member 5 of the present application. The other structures in this embodiment are basically the same as those in the first embodiment, with the difference that the drive member 5 is a roller motor, which includes a motor and a roller. The roller is fixed to the output shaft of the motor, which drives the roller to rotate. The wire rope 2 7 is fixed to the roller and is driven by the roller to be wound around the roller. The present application retracts and extends the wire rope 2 7 through the rotation of the roller, thereby driving the extension and retraction of the tension spring. This design can achieve a technical effect similar to that of an electric linear actuator.

[0048] In the description of the present invention, it should be noted that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. At the same time, the basic principles, main features and advantages of the present invention are shown and described above, which should be understood by technicians in this industry.

Claims

1. A dust pusher, comprising a frame (1) with wheels, wherein the bottom of the frame (1) has a crossbeam (11) and a longitudinal beam (12), the front end of the crossbeam (11) is hinged with a mop head (2), and the mop head (2) can be rotated up and down, characterized in that: The bottom of the crossbeam (11) is slidably connected to a slider (31), and the slider (31) can move in the length direction of the crossbeam (11). An elastic member (4) that can be extended and retracted to change the elasticity is provided between the slider (31) and the mop head (2). The two ends of the elastic member (4) are respectively connected to the slider (31) and the mop head (2), and the elastic member (4) always maintains a contraction trend. A driving member (5) that can drive the slider (31) to move is provided on the vehicle frame (1).

2. A dust pusher according to claim 1, characterized in that: A linear guide rail (3) is fixed to the bottom of the crossbeam (11) along its length direction. The linear guide rail (3) includes a slide rail (32) and the above-mentioned slider (31). One side of the slider (31) is connected to the elastic member (4) and the other side is connected to the driving member (5). The driving member (5) can drive the slider (31) to move and drive the elastic member (4) to expand and contract.

3. A dust pusher according to claim 2, characterized in that: The elastic member (4) is a tension spring, both ends of which are connected to a steel wire rope (6), and the steel wire ropes (6) at both ends are respectively fixed to the mop head (2) and the slider (31).

4. A dust pusher according to claim 3, characterized in that: The output end of the driving member (5) is connected to a second steel wire rope (7) and is fixed to the slider (31) via the second steel wire rope (7).

5. A dust pusher according to claim 4, characterized in that: The steel wire rope 1 (6) and the steel wire rope 2 (7) are both arranged to extend in the length direction of the crossbeam (11).

6. A dust pusher according to claim 5, characterized in that: The driving member (5) is an electric push rod, which is fixed to the bottom of the cross beam (11) and is located near the rear end of the vehicle frame (1). The push rod of the electric push rod is arranged along the length direction of the cross beam (11) and is located in the extension direction of the moving path of the slider (31).

7. A dust pusher according to claim 5, characterized in that: The driving member (5) is a roller motor, which includes a motor and a roller. The roller is fixed on the output shaft of the motor, and the motor can drive the roller to rotate. The second steel wire rope (7) is fixed on the roller and is driven by the roller to be wound on the roller.

8. A dust pusher according to any one of claims 1 to 7, characterized in that: The mop head (2) comprises a shaft (21) and a mop head (22); the shaft (21) and the mop head (22) are hingedly connected, and the shaft (21) and the mop head (22) have a rotatable range of 120 degrees.

9. A dust pusher according to claim 8, characterized in that: The shaft (21) is hinged to the crossbeam (11), and a connecting portion (23) is protruded from the shaft (21) at the bottom position close to the hinge axis. The connecting portion (23) has a connecting hole, and the height of the connecting hole is lower than or flush with the height position of the slider (31). The elastic member (4) is connected to the connecting hole.

10. A dust pusher according to claim 6, characterized in that: The dust pusher further comprises a handheld Bluetooth controller (8), wherein the handheld Bluetooth controller (8) has a control button (81) for operating the electric push rod, and the handheld Bluetooth controller (8) also has a gear button (82) for adjusting the electric push rod to a set gear.

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