A sweeper with quick-release cleaning components

Abstract

This utility model relates to the field of sanitation equipment technology, and in particular to a sweeper with a quick-release sweeping assembly. The sweeper has a mounting frame connected to its bottom, with fixed frames connected to both ends of the mounting frame. A bidirectional electric push rod is installed inside the fixed frame, and piston rods at both ends of the bidirectional electric push rod are connected to connecting rods. The connecting rods are slidably connected to the fixed frames, and a connecting seat is rotatably connected to the end of the connecting rod. A sweeping assembly for cleaning the ground is connected to the connecting seat. A motor is installed on the connecting rod, and the output shaft of the motor is fixedly connected to the rotating shaft connecting the connecting seat and the connecting rod. The sweeping assembly includes a sleeve and a sweeping disc, with the sleeve connected to the sweeping disc. A limiting component for locking the sleeve is provided inside the sweeping assembly. Through the mechanical linkage design of the operating lever and the triangular plate, a reversible locking mechanism is formed by the change in the preload of the return spring. The sleeve limiting can be released by simply pressing with both hands, improving the maintenance efficiency of consumable parts.

Description

Technical Field

[0001] This utility model relates to the field of sanitation equipment technology, and in particular to a sweeper with quick-release cleaning components. Background Technology

[0002] As a mechanized road cleaning device, the core function of a sweeper is achieved through the coordinated action of a rotating sweeping component and a negative pressure suction system. Most current mainstream models use a conical brush disc as the core sweeping component. This component consists of radially arranged elastic bristles and a frustum-shaped metal base. The centrifugal force generated by high-speed rotation gathers road debris towards the suction port area. While this design effectively handles regular road debris, the physical wear and tear of the sweeping component directly affects the equipment's continuous operating capability. Especially when the effective bristle length is reduced to below 70% of the design threshold, its debris-gathering efficiency will decrease exponentially.

[0003] When the bristles of the conical brush disc wear down or the dust inlet guide plate undergoes plastic deformation, the operator needs to disassemble the entire cleaning assembly. This process involves a series of operations, including removing the drive shaft coupling bolts, separating the dust suction pipe flange, and pulling out the limit pin. Each connection node uses a different fastening method: the drive shaft is fixed with M12 hex socket head cap screws, the dust suction port is connected with Phillips head screws, and the brush disc base is equipped with a spring washer assembly to prevent loosening.

[0004] In existing maintenance processes, the bolted connection structure requires operators to perform position calibration within the narrow equipment cavity, making the operation complex. Furthermore, the need for irregularly shaped tools not only increases maintenance costs but also enhances the complexity of on-site tool management. These structural defects severely restrict the application efficiency of sweepers in continuous operation scenarios. Summary of the Invention

[0005] To overcome the drawback of low maintenance efficiency, this utility model provides a sweeper with a quick-release sweeping component, aiming to solve the above-mentioned shortcomings.

[0006] A sweeper with a quick-release cleaning assembly is disclosed. The sweeper has a mounting frame connected to its bottom, with fixed frames connected to both its front and rear ends. A bidirectional electric push rod is installed within the fixed frames. Piston rods at both ends of the bidirectional electric push rod are connected to connecting rods, which are slidably connected within the fixed frames. A connecting seat is rotatably connected to the end of each connecting rod. A cleaning assembly for cleaning the floor is connected to the connecting seat. A motor is mounted on the connecting rod, and the motor's output shaft is fixedly connected to a rotating shaft connecting the connecting seat and the connecting rod. A controller is installed on the sweeper, and the bidirectional electric push rod and the motor are wired to the controller. The cleaning assembly includes a sleeve and a cleaning disc, with the sleeve connected to the cleaning disc. A limiting component for locking the sleeve is provided within the cleaning assembly.

[0007] Furthermore, it is particularly preferred that the cleaning assembly also includes a drive shaft, which is fixedly connected to the connecting seat, the sleeve is sleeved on the drive shaft, a limiting component provided on the drive shaft is used to assist transmission, and the drive shaft is used to drive the sleeve and the cleaning disc to rotate.

[0008] Furthermore, it is particularly preferred that the limiting component includes an operating lever, two bent operating levers are slidably connected to the drive shaft, a triangular plate is connected to the end of the operating lever, a return spring is connected to the adjacent side of the two triangular plates, a notch is opened in the middle of the sleeve, the triangular plate is limited to the notch of the sleeve, and the inner ring of the sleeve is slidably connected to the inclined surface of the triangular plate.

[0009] Furthermore, it is particularly preferred that the drive shaft is fitted with a guide ring at the end inserted into the sleeve.

[0010] Furthermore, it is particularly preferred that a pressure sensor is installed at the end of the drive shaft inserted into the sleeve, the pressure sensor is covered with a rubber pad, the pressure sensor is pressed and engaged with the sleeve, the pressure sensor is set with an installation threshold, and the pressure sensor is wired to the controller.

[0011] Furthermore, it is particularly preferred that the top of the mounting bracket has heat dissipation holes.

[0012] Furthermore, it is particularly preferred that a protective sleeve is provided between the fixing frame and the drive shaft, the protective sleeve covering the connecting seat and the connecting rod extending out of the fixing frame.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. Through the mechanical linkage design of the operating lever and the triangular plate, a reversible locking mechanism is formed by the change of the preload of the return spring. The sleeve limit can be released by pressing with both hands, which improves the maintenance efficiency of consumable parts.

[0015] 2. Through the coordinated action of the bidirectional electric push rod and the linkage mechanism, the cleaning component is automatically moved and positioned, replacing the traditional bolt disassembly operation, and making the separation stroke of the connecting seat and the cleaning component precise and controllable.

[0016] 3. By combining the inclined guide structure of the guide ring with the threshold detection of the pressure sensor, quick alignment can be achieved during sleeve installation. At the same time, real-time pressure feedback ensures connection reliability, shortens the debugging time after component replacement, and allows for timely understanding of the connection status of components during operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the installation structure of the bidirectional electric push rod and connecting rod of this utility model.

[0019] Figure 3 This is a cross-sectional view showing the connection relationship between the reset spring and the triangular plate of this utility model.

[0020] Figure 4 This is a schematic diagram showing the connection relationship between the guide ring and the pressure sensor of this utility model.

[0021] The above-mentioned attached drawings include the following reference numerals: 1: sweeper, 2: mounting bracket, 3: fixed bracket, 4: bidirectional electric push rod, 5: connecting rod, 6: connecting seat, 7: sweeping assembly, 701: drive shaft, 702: sleeve, 703: sweeping disc, 8: motor, 9: controller, 10: operating lever, 11: triangular plate, 12: return spring, 13: guide ring, 14: pressure sensor, 15: heat dissipation hole, 16: protective cover. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: A sweeper with a quick-release cleaning assembly, such as... Figures 1-4 As shown, the sweeper includes a mounting frame 2, a fixed frame 3, a bidirectional electric push rod 4, a connecting rod 5, a connecting seat 6, a sweeping assembly 7, a motor 8, a controller 9, and a limit assembly. The sweeper 1 has three wheels mounted on its bottom. The mounting frame 2 is connected to the bottom of the sweeper 1. Fixed frames 3 are connected to both the front and rear ends of the mounting frame 2. The bidirectional electric push rod 4 is installed inside the fixed frame 3. The piston rods at both ends of the bidirectional electric push rod 4 are connected to connecting rods 5. The connecting rods 5 are slidably connected within the fixed frame 3. One end of the connecting rod 5 extending out of the fixed frame 3 is rotatably connected to the connecting seat 6. The connecting seat 6 is equipped with a useful... The sweeping assembly 7 for cleaning the ground has a motor 8 installed on the connecting rod 5. The output shaft of the motor 8 is fixedly connected to the rotating shaft of the connecting seat 6 and the connecting rod 5. The sweeper 1 is equipped with a controller 9. The bidirectional electric push rod 4 and the motor 8 are wired to the controller 9. The sweeping assembly 7 includes a sleeve 702 and a sweeping disc 703. The sleeve 702 and the sweeping disc 703 are fixedly connected. The sleeve 702 and the sweeping disc 703 adopt a pre-assembled structure to shorten the time required to replace the sweeping assembly 7. A limiting component for locking the sleeve 702 is provided inside the sweeping assembly 7.

[0024] like Figure 3 and Figure 4 As shown, the cleaning assembly 7 also includes a drive shaft 701, which is fixedly connected to the connecting seat 6. The drive shaft 701 includes a power component and a transmission shaft. The power component is wired to the controller 9. The sleeve 702 is sleeved on the drive shaft 701. The limiting component provided on the drive shaft 701 is used to assist the transmission. The drive shaft 701 is used to drive the sleeve 702 and the cleaning disc 703 to rotate.

[0025] like Figure 3 and Figure 4 As shown, the limiting assembly includes an operating lever 10, a triangular plate 11, and a return spring 12. Two bent operating levers 10 are slidably connected inside the drive shaft 701. One end of the operating lever 10 passes through the drive shaft 701, and the other end of the operating lever 10 is fixedly connected to the triangular plate 11. The two triangular plates 11 are connected to the same side on adjacent sides, and the return spring 12 is located inside the drive shaft 701. A notch is opened in the middle of the sleeve 702. The triangular plate 11 is limited and matched with the notch of the sleeve 702. The inner ring of the sleeve 702 is slidably connected to the inclined surface of the triangular plate 11.

[0026] like Figure 4 As shown, it also includes a guide ring 13. The drive shaft 701 is inserted into the end of the sleeve 702 and a guide ring 13 is fitted on it. When the sleeve 702 is installed, the inclined surface of the guide ring 13 makes contact with the port of the sleeve 702 to guide it, so that the inner wall of the sleeve 702 and the drive shaft 701 form a coaxial fit. The manual centering operation is transformed into a mechanical self-centering process, reducing the installation and positioning time.

[0027] like Figure 4 As shown, it also includes a pressure sensor 14. The pressure sensor 14 is installed at the end of the sleeve 702 inserted into the drive shaft 701. The silicone buffer layer of the pressure sensor 14 forms an interference fit with the inner end face of the sleeve 702. The pressure sensor 14 is set with an installation threshold. The pressure sensor 14 is wired to the controller 9. When the sleeve 702 is assembled, the pressure sensor 14 detects the pressure value of the contact surface. When the pressure exceeds the 4.5MPa threshold for 2 seconds, it is determined that the connection is valid. It can also monitor the loosening of components in operation in real time. It can not only promptly remind the cleaner of component detachment through the controller 9, but also provide early warning of potential faults.

[0028] like Figure 1 As shown, the top of the mounting bracket 3 has a heat dissipation hole 15.

[0029] like Figure 1 As shown, it also includes a protective sleeve 16. A protective sleeve 16 is provided between the fixing frame 3 and the drive shaft 701. The corrugated protective sleeve 16 dynamically seals the hinge of the connecting seat 6 and the extension section of the connecting rod 5, maintaining continuous coverage during the extension and retraction of the connecting rod 5, effectively blocking the intrusion of particles on the road surface and reducing the frequency of daily maintenance.

[0030] After the cleaner starts the sweeper 1, the drive shaft 701 drives the sleeve 702 and the sweeping disc 703 to rotate synchronously at high speed through the power component. The sweeping disc 703 adopts a spiral bristle arrangement design, which sweeps the scattered garbage on the road towards the central axis of the sweeper 1 under the action of centrifugal force. At the same time, the airflow vortex formed by the guide groove inside the sleeve 702 helps to improve the debris collection efficiency.

[0031] The cleaner constantly observes the area traversed by the sweeper 1. When the wear on the edge of the cleaning disc 703 exceeds 3mm, its effective contact area with the ground decreases by approximately 40%, resulting in a residual strip approximately 5-10cm wide on both sides of the cleaning path. In this case, a replacement process for the cleaning components is required. The cleaner uses the controller to shut off the drive shaft 701 and activate the bidirectional electric push rod 4. The bidirectional electric push rod 4 pushes the connecting rods 5 on both sides to move to the sides, thereby pushing out the connecting seat 6 and the cleaning assembly 7. The protective cover 16 then extends. Once the bidirectional electric push rod 4 pushes out the connecting rods 5... After self-locking, the controller 9 automatically starts the motor 8, which drives the connecting seat 6 to rotate 90 degrees, so that the cleaning disc 703 is in a vertical storage state. The protective cover 16 rotates accordingly. The cleaner presses the operating levers 10 with both hands, pressing both levers 10 towards the middle at the same time. The operating levers 10 drive the triangular plate 11 to move towards the middle, compressing the return spring 12. Due to the rubber pad wrapped around the pressure sensor 14, the rubber pad rebounds and pushes out of the sleeve 702, causing the sleeve 702 to slide relative to the drive shaft 701 for a certain distance. Then, the operating levers 10 are released, and the return spring 12... The springback pushes the triangular plate 11 to slide back to its original position. The inclined surface of the triangular plate 11 presses against the sleeve 702, pushing the sleeve 702 further out. The cleaner removes the sleeve 702 and cleaning disc 703 that need to be replaced, and then takes out the new sleeve 702 and cleaning disc 703. The sleeve 702 is aligned with the guide ring 13 at the end of the drive shaft 701 and pushed towards the drive shaft 701. The inclined surface of the guide ring 13 can guide the sleeve 702 to be fitted onto the drive shaft 701. After the inner ring of the sleeve 702 contacts the inclined surface of the triangular plate 11, it presses the triangular plate 11 towards the drive shaft 701. 1. Sliding inside, compressing the return spring 12. As the sleeve 702 is pushed in, the pressure sensor 14 and the rubber pad are squeezed inside the sleeve 702. Finally, the notch of the sleeve 702 is aligned with the triangular plate 11. The return spring 12 pushes the triangular plate 11 through the sleeve 702. At this time, the pressure sensor 14 is squeezed. After the replacement is completed, the motor 8 is started again. The motor 8 drives the connecting seat 6 to rotate 90 degrees in the opposite direction, so that the cleaning disc 703 contacts the ground. Then, the bidirectional electric push rod 4 pulls the connecting seat 6 to move towards the middle through the connecting rod 5, adjusting the distance between the two cleaning discs 703.

[0032] When the pressure sensor 14 is squeezed, it generates a pressure value. If the pressure value is greater than the threshold, the identification sleeve 702 is connected stably. If the pressure value is less than the threshold, the identification sleeve 702 falls off. At this time, the cleaner can receive an alarm during driving, reminding the cleaner to stop the sweeper 1 and check.

[0033] The bidirectional electric actuator 4 generates heat during operation, which is exchanged through the heat dissipation hole 15 to assist in the heat dissipation of the bidirectional electric actuator 4.

[0034] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A sweeper with a quick-release cleaning assembly, characterized in that, The sweeper (1) has a mounting frame (2) connected to its bottom. The mounting frame (2) has fixed frames (3) connected to both its front and rear ends. A bidirectional electric push rod (4) is installed inside the fixed frame (3). The piston rods at both ends of the bidirectional electric push rod (4) are connected to connecting rods (5). The connecting rods (5) are slidably connected to the fixed frame (3). A connecting seat (6) is rotatably connected to the end of the connecting rod (5). A sweeping assembly (7) for cleaning the ground is connected to the connecting seat (6). A motor is installed on the connecting rod (5). 8), the output shaft of the motor (8) is fixedly connected to the shaft of the connecting seat (6) and the connecting rod (5), the sweeper (1) is equipped with a controller (9), the bidirectional electric push rod (4) and the motor (8) are wired to the controller (9), the cleaning assembly (7) includes a sleeve (702) and a cleaning disc (703), the sleeve (702) is connected to the cleaning disc (703), and the cleaning assembly (7) is provided with a limiting component for locking the sleeve (702).

2. A sweeper with a quick-release cleaning assembly according to claim 1, characterized in that, The cleaning assembly (7) also includes a drive shaft (701), which is fixedly connected to the connecting seat (6). The sleeve (702) is sleeved on the drive shaft (701). The limiting component provided on the drive shaft (701) is used to assist the transmission. The drive shaft (701) is used to drive the sleeve (702) and the cleaning disc (703) to rotate.

3. A sweeper with a quick-release cleaning assembly according to claim 2, characterized in that, The limiting assembly includes an operating lever (10), two bent operating levers (10) are slidably connected to the drive shaft (701), the end of the operating lever (10) is connected to a triangular plate (11), the two triangular plates (11) are connected to a return spring (12) on their adjacent sides, the sleeve (702) has a notch in the middle, the triangular plate (11) is limited to the notch of the sleeve (702), and the inner ring of the sleeve (702) is slidably connected to the inclined surface of the triangular plate (11).

4. A sweeper with a quick-release cleaning assembly according to claim 3, characterized in that, The drive shaft (701) is inserted into the sleeve (702) and a guide ring (13) is fitted on the end.

5. A sweeper with a quick-release cleaning assembly according to claim 4, characterized in that, A pressure sensor (14) is installed at the end of the drive shaft (701) inserted into the sleeve (702). The pressure sensor (14) is wrapped with a rubber pad. The pressure sensor (14) is pressed and engaged with the sleeve (702). The pressure sensor (14) is set with an installation threshold. The pressure sensor (14) is wired to the controller (9).

6. A sweeper with a quick-release cleaning assembly according to claim 5, characterized in that, The top of the mounting bracket (3) has a heat dissipation hole (15).

7. A sweeper with a quick-release cleaning assembly according to claim 6, characterized in that, A protective sleeve (16) is provided between the fixed frame (3) and the drive shaft (701), and the protective sleeve (16) covers the connecting seat (6) and the connecting rod (5) extending out of the fixed frame (3).

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