Switching door structure for washing and sweeping vehicle

Abstract

The utility model provides a switching door structure for a cleaning and sweeping vehicle, which comprises a door plate main body for blocking a port of a corresponding air duct; the lower end of the linkage frame is fixedly connected with one side, far away from the air duct, of the door plate main body; the driving device is rotationally arranged at the top of the air duct, the telescopic end is movably connected with the linkage frame through a buffering mechanism, and the buffering mechanism is used for elastically buffering stretching of the telescopic end of the driving device. The door plate body and the driving device are prevented from being corroded by accumulated sewage due to long-term contact with dirty air, the overall service life of the switching door structure is prolonged, the practicability of the switching door structure is improved, the sealing performance of the switching door can be improved, the stability of switching between a cleaning mode and a dust collection mode is improved, and the negative pressure stability of the dustbin is improved. Therefore, the cleaning and sweeping effect and the dust collection effect are ensured; the buffering mechanism can elastically buffer the stretching of the telescopic end, so that the situation that the telescopic end stretches out too long and too fast or stretches out too short is avoided, and the working stability of the switching door structure is ensured.

Description

Technical Field

[0001] This utility model relates to the field of switching door structures, specifically a switching door structure for a sweeper truck. Background Technology

[0002] Some sanitation vehicles use a switching door design to switch between vacuuming and sweeping modes. Specifically, the sanitation vehicle's compartment has a vacuuming path that connects to the suction pipe, garbage bin, filter cartridge, and fan in sequence, as well as a sweeping path that connects to the suction pipe, garbage bin, and fan in sequence. The vacuuming path is controlled by a vacuuming switching door, and the sweeping path is controlled by a sweeping switching door.

[0003] refer to Figure 1 The existing sweeping and washing switching door is directly installed in the air duct and is driven by the drive unit to swing up, blocking the sweeping and washing air intake path, and swinging down, opening the sweeping and washing air intake path. However, this design makes the drive unit and the rotating shaft susceptible to corrosion and damage from the sewage sucked in and accumulated in the sweeping and washing mode under long-term use. In addition, the sealing performance of the sweeping and washing switching door when it swings up is poor, which reduces the stability of the switching between sweeping and washing modes and the vacuuming mode, reduces the stability of the negative pressure in the garbage bin, and thus affects the sweeping and washing effect and the vacuuming effect.

[0004] The research objective of this utility model is to design a switching door structure for a sweeper truck to address the problems existing in the prior art. Utility Model Content

[0005] In view of the problems existing in the prior art, the present invention provides a switching door structure for a sweeper truck, which can effectively solve the problems existing in the prior art.

[0006] The technical solution of this utility model is:

[0007] A switching door structure for a sweeper truck includes:

[0008] The main body of the door panel is used to seal the ports of the corresponding air ducts;

[0009] The linkage frame is rotatably mounted on the top of the air duct at its upper end and fixedly connected to the side of the door panel body away from the air duct at its lower end.

[0010] The drive device is rotatably mounted on the top of the air duct, and its telescopic end is movably connected to the linkage frame through a buffer mechanism. The buffer mechanism is used to elastically buffer the extension and retraction of the telescopic end of the drive device. When the telescopic end of the drive device extends, the lower end of the linkage frame swings to cause the door panel body to seal and block the port of the air duct. When the telescopic end of the drive device retracts, the lower end of the linkage frame swings to cause the door panel body to disengage from the port of the air duct.

[0011] Furthermore, the main body of the door panel includes a frame and a door panel component disposed within the frame. The linkage frame includes two linkage components spaced apart on the left and right. The upper and lower ends of the two linkage components are folded in the same direction, and the upper end is rotatably disposed on the top of the air duct through a rotating seat, and the lower end is connected to the side of the door panel component away from the air duct.

[0012] Furthermore, the buffer mechanism includes a buffer spring, a connecting rod connecting the two linkage members, a hinge seat fixed in the middle of the connecting rod, and a hinge member vertically rotatably connected to the hinge seat. The rear end of the hinge member is provided with a sliding cavity. The driving device is located on the rear side of the linkage frame and its telescopic end is limited and slidably inserted into the sliding cavity. The two ends of the buffer spring are respectively fixed to the inner wall of the sliding cavity away from the telescopic end of the driving device and the end of the telescopic end of the driving device.

[0013] Furthermore, the buffer mechanism includes a limiting housing fixedly mounted on the bottom of the upper end of the two linkage components, a slide rod extending left and right and slidably mounted in the two limiting housings with its two ends limited front and rear, and a buffer spring fixedly connected between the front sides of the two ends of the slide rod and the inner wall of the front side of the limiting housing. A hinge seat is fixedly mounted in the middle of the slide rod, and the driving device is located on the rear side of the linkage frame and its telescopic end extends forward and hinges to the hinge seat.

[0014] Furthermore, the upper and lower inner walls of the limiting housing are recessed and have sliding grooves extending forward and backward, and the upper and lower sides of the sliding rod are raised and have protrusions that slide within the sliding grooves.

[0015] Furthermore, a sealing element corresponding to the port of the air duct is provided on the rear side of the door panel body.

[0016] Furthermore, the rotating seat is provided with several adjusting holes extending forward and backward, and the rotating seat is installed on the top of the air duct after passing through several adjusting holes with several screws.

[0017] Therefore, the beneficial effects of this utility model are:

[0018] 1. The drive unit is positioned at the top of the air duct. By adding a linkage frame, when the extension end of the drive unit extends, the lower end of the linkage frame swings, causing the door panel to seal and block the air duct port. When the extension end of the drive unit retracts, the lower end of the linkage frame swings, causing the door panel to disengage from the air duct port. This upward installation of the drive unit, along with the upward movement of the door panel's rotating connection via the linkage frame, ensures that in sweeping / washing mode, the suction air directly enters the lower air duct without passing through the rotating connection of the door panel. This prevents the door panel and drive unit from prolonged contact with dirty air and subsequent corrosion from accumulated wastewater, improving the overall service life and practicality of the switching door structure. Furthermore, the swinging of the linkage frame... The downward pressure mechanism, which closes the port of the door panel to seal the blocked air duct, improves the sealing performance of the switching door, enhances the stability of the switching between sweeping and vacuuming modes, and improves the stability of the negative pressure in the dustbin, thereby ensuring effective sweeping and vacuuming. However, the downward swinging drive mechanism suffers from instability in the extension and retraction of the drive unit's telescopic end after prolonged use. Excessive or rapid extension can damage the door panel, while insufficient extension can leave the air duct port unsealed. Therefore, the addition of a buffer mechanism provides elastic cushioning for the extension and retraction of the telescopic end, preventing excessive or insufficient extension and ensuring the stability of the switching door structure.

[0019] 2. By setting up two linkage components, the connection points between the linkage frame and the door panel body are increased, and the lower ends of the linkage components are respectively connected to the door panel components, which can improve the uniformity of force on the door panel body and improve the stability of the door panel body's sealing and blocking of the air duct port.

[0020] 3. By adding a sliding cavity and a buffer spring, when the extension end of the drive device extends too far or too quickly, the buffer spring can buffer the extension force and stroke, while also offsetting the excessive extension stroke through its own compression. Furthermore, when the extension end of the drive device extends too short, the elastic force of the buffer spring after compression can compensate for the reduced stroke of the extension end, ensuring that the door panel is sealed within the air duct port. Therefore, the buffer mechanism can prevent damage to the door panel when the drive device becomes unstable after long-term use, reduce maintenance costs, further improve the service life of the door panel, and ensure the sealing performance after the switching door structure is closed.

[0021] 4. By adding buffer springs and sliding rods, when the extension end of the drive device extends too far or too quickly, the buffer springs can buffer the extension force and stroke of the extension end of the drive device through the buffering effect of the sliding rods. At the same time, the compression of the buffer springs themselves can offset the excessive extension stroke of the extension end of the drive device. Furthermore, when the extension end of the drive device extends too short, the elastic force of the buffer springs after compression can compensate for the reduced stroke of the extension end, ensuring that the door panel is sealed within the air duct port. Therefore, the buffer mechanism can prevent damage to the door panel when the drive device becomes unstable after long-term use, reduce maintenance costs, further improve the service life of the door panel, and ensure the sealing performance of the switching door structure after closure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the existing sweeping and washing switching door.

[0023] Figure 2 This is a cross-sectional structural diagram of the sweeper truck in Example 1.

[0024] Figure 3 for Figure 2 A schematic diagram of a local structure.

[0025] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0026] Figure 5 This is a schematic diagram of the structure of Embodiment 1.

[0027] Figure 6 This is a partial cross-sectional structural diagram of the sweeper truck in Example 2.

[0028] Figure 7 This is a schematic diagram of the structure of Example 2.

[0029] Figure 8 This is a schematic diagram of the exploded structure of the buffer mechanism in Example 2. Detailed Implementation

[0030] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0031] Example 1

[0032] refer to Figure 1-5 A switching door structure for a sweeper truck, comprising:

[0033] Door panel body 1, used to block the corresponding air duct port 6;

[0034] Linkage frame 2, with its upper end rotatably mounted on the top of the air duct and its lower end fixed to the side of the door panel body 1 away from the air duct;

[0035] The drive device 3 is rotatably mounted on the top of the air duct, and its telescopic end 31 is movably connected to the linkage frame 2 via a buffer mechanism 4. The buffer mechanism 4 is used to elastically buffer the extension and retraction of the telescopic end 31 of the drive device 3. When the telescopic end 31 of the drive device 3 extends, the lower end of the linkage frame 2 swings, causing the door panel body 1 to seal and block the port 6 of the air duct. When the telescopic end 31 of the drive device 3 retracts, the lower end of the linkage frame 2 swings, causing the door panel body 1 to disengage from the port 6 of the air duct. Specifically, the drive device 3 is a hydraulic cylinder.

[0036] The above-described structure, through the upward installation of the drive device 3 and the upward movement of the rotating connection of the door panel body 1 via the linkage frame 2, ensures that in the sweeping / washing mode, the suction air directly enters the lower air duct without passing through the rotating connection of the door panel body 1. This prevents the door panel body 1 and the drive device 3 from being corroded by accumulated sewage due to long-term contact with the dirty air, thus improving the overall service life and practicality of the switching door structure. Furthermore, the swaying and downward pressing of the linkage frame 2, which seals and blocks the port 6 of the air duct in the door panel body 1, improves the sealing performance of the switching door and enhances the effectiveness of the sweeping / washing and dust collection modes. To improve the stability of the switching mechanism and enhance the stability of the negative pressure in the trash can, thereby ensuring the cleaning and dust collection effects; on this basis, the downward swinging drive method has the problem of unstable extension and retraction of the extension end 31 of the drive device 3 after long-term use. If it extends too far or too fast, it will damage the door panel body 1. If it extends too short, it will cause the air duct port 6 of the door panel body 1 to be unsealed. Therefore, by adding a buffer mechanism 4, the extension and retraction of the extension end 31 can be elastically buffered to avoid the above-mentioned situations where the extension end 31 extends too far or too fast or extends too short, thus ensuring the stability of the switching door structure.

[0037] To improve the stability of the connection between the linkage frame 2 and the door panel body 1, the door panel body 1 includes a frame 11 and a door panel component 12 disposed within the frame 11. The linkage frame 2 includes two linkage components 21 spaced apart from each other. The upper and lower ends of the two linkage components 21 are folded in the same direction, with the upper end rotatably mounted on the top of the air duct via a rotating seat 5, and the lower end connected to the side of the door panel component 12 away from the air duct. Thus, the arrangement of the two linkage components 21 increases the connection points between the linkage frame 2 and the door panel body 1, and the connection of the lower ends of the linkage components 21 to the door panel component 12 improves the uniformity of force distribution on the door panel body 1 and enhances the stability of the door panel body 1 in sealing and blocking the air duct port 6.

[0038] Specifically, in this embodiment, the buffer mechanism 4 includes a buffer spring 41, a connecting rod 42 connected between the two linkage members 21, a hinge seat 43 fixed in the middle of the connecting rod 42, and a hinge member 44 vertically rotatably connected to the hinge seat 43. The rear end of the hinge member 44 is provided with a sliding cavity 45. The driving device 3 is located on the rear side of the linkage frame 2 and its telescopic end 31 is limited and slidably inserted into the sliding cavity 45. The two ends of the buffer spring 41 are respectively fixed to the inner wall of the sliding cavity 45 away from the telescopic end 31 of the driving device 3 and the end of the telescopic end 31 of the driving device 3. Preferably, the buffer spring 41 is a high-stiffness spring. Thus, by adding the sliding cavity 45 and the buffer spring 41, when the extension end 31 of the drive device 3 extends too far or too fast, the buffer spring 41 can buffer its extension force and extension stroke, while also offsetting its excessive extension stroke through its own compression. Furthermore, when the extension end 31 of the drive device 3 extends too short, the force exerted by the compressed spring 41 on the door panel body 1 can compensate for the reduced stroke of the extension end 31, ensuring that the door panel body 1 is sealed within the air duct port 6. Therefore, the buffer mechanism 4 can prevent damage to the door panel body 1 when the drive device 3 experiences driving instability after long-term use, reduce maintenance costs, further improve the service life of the door panel body 1, and ensure the sealing performance after the switching door structure is closed.

[0039] Specifically, the upper and lower inner walls of the limiting housing 46 are recessed and have sliding grooves 461 extending forward and backward, and the upper and lower protrusions 471 at both ends of the slide rod 47 are provided with protrusions 471 that slide within the sliding grooves 461. Thus, the sliding engagement of the sliding grooves 461 and the protrusions 471 allows the two ends of the slide rod 47 to slide forward and backward within the limiting housing 46.

[0040] Furthermore, the rear side of the door panel body 1 is provided with a sealing element corresponding to the port 6 of the air duct. The sealing element can be a rubber ring, silicone ring, or other sealing ring.

[0041] To improve the installation adaptability of the switching door structure, the rotating base 5 is provided with several adjusting holes 51 extending forward and backward. The rotating base 5 is installed on the top of the air duct after passing through several adjusting holes 51 with several screws. Thus, the installation position of the switching door structure can be adjusted by adjusting the screw positions of the screws and adjusting holes 51, thereby improving installation adaptability.

[0042] Example 2

[0043] refer to Figure 6-8The difference between this embodiment and Embodiment 1 is that the buffer mechanism 4 includes a limiting housing 46 fixedly mounted on the bottom of the upper end of the two linkage members 21, a sliding rod 47 extending left and right and slidably mounted in the two limiting housings 46 with its two ends limited front and rear, and a buffer spring 41 fixedly connected between the front sides of the two ends of the sliding rod 47 and the inner wall of the front side of the limiting housing 46. A hinge seat 43 is fixedly mounted in the middle of the sliding rod 47. The driving device 3 is located on the rear side of the linkage frame 2 and its telescopic end 31 extends forward and hinges to the hinge seat 43. Preferably, the buffer spring 41 is a high-stiffness spring. By adding the buffer spring 41 and the slide rod 47, when the extension end 31 of the drive device 3 extends too far or too quickly, the buffer spring 41 can buffer the extension force and extension stroke of the slide rod 47. At the same time, the compression of the buffer spring 41 itself can offset the excessive extension stroke of the extension end 31 of the drive device 3. Furthermore, when the extension end 31 of the drive device 3 extends too short, the elastic force of the buffer spring 41 after compression can compensate for the reduced stroke of the extension end 31, ensuring that the door panel body 1 is sealed within the port 6 of the air duct. Therefore, the buffer mechanism 4 can prevent damage to the door panel body 1 when the drive device 3 experiences driving instability after long-term use, reduce maintenance costs, further improve the service life of the door panel body 1, and ensure the sealing performance after the switching door structure is closed.

[0044] It should be noted that this embodiment is implemented in the same way as embodiment one in terms of principle and technical effect. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in embodiment one.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A switching door structure for a sweeper truck, characterized in that, include: The main body of the door panel (1) is used to block the port (6) of the corresponding air duct; The linkage frame (2) is rotatably mounted on the top of the air duct at its upper end and fixed to the side of the door panel body (1) away from the air duct at its lower end. The drive device (3) is rotatably mounted on the top of the air duct and its telescopic end (31) is movably connected to the linkage frame (2) through a buffer mechanism (4). The buffer mechanism (4) is used to elastically buffer the extension and retraction of the telescopic end (31) of the drive device (3). When the telescopic end (31) of the drive device (3) extends, the lower end of the linkage frame (2) swings and drives the door panel body (1) to seal and block the port (6) of the air duct. When the telescopic end (31) of the drive device (3) retracts, the lower end of the linkage frame (2) swings and drives the door panel body (1) to disengage from the port (6) of the air duct.

2. The switching door structure for a sweeper truck as described in claim 1, characterized in that, The main body of the door panel (1) includes a frame (11) and a door panel component (12) disposed within the frame (11). The linkage frame (2) includes two linkage components (21) spaced apart on the left and right. The upper and lower ends of the two linkage components (21) are folded in the same direction, and the upper end is rotatably disposed on the top of the air duct through a rotating seat (5). The lower end is connected to the side of the door panel component (12) away from the air duct.

3. The switching door structure for a sweeper truck as described in claim 2, characterized in that, The buffer mechanism (4) includes a buffer spring (41), a connecting rod (42) connected between the two linkage members (21), a hinge seat (43) fixed in the middle of the connecting rod (42), and a hinge member (44) vertically rotatably connected to the hinge seat (43). The rear end of the hinge member (44) is provided with a sliding cavity (45). The driving device (3) is located on the rear side of the linkage frame (2) and its telescopic end (31) is limited and slidably inserted into the sliding cavity (45). The two ends of the buffer spring (41) are respectively fixed to the inner wall of the sliding cavity (45) away from the telescopic end (31) of the driving device (3) and the end of the telescopic end (31) of the driving device (3).

4. The switching door structure for a sweeper truck as described in claim 2, characterized in that, The buffer mechanism (4) includes a limiting housing (46) fixedly mounted on the bottom of the upper end of the two linkage members (21), a slide rod (47) extending left and right and slidably mounted in the two limiting housings (46) with its two ends limited in front and back, and a buffer spring (41) fixedly connected between the front sides of the two ends of the slide rod (47) and the inner wall of the front side of the limiting housing (46). A hinge seat (43) is fixedly mounted in the middle of the slide rod (47). The driving device (3) is located on the rear side of the linkage frame (2) and its telescopic end (31) extends forward and hinges to the hinge seat (43).

5. The switching door structure for a sweeper truck as described in claim 4, characterized in that, The upper and lower inner walls of the limiting housing (46) are recessed and have sliding grooves (461) extending forward and backward. The upper and lower sides of the sliding rod (47) have protrusions (471) that slide within the sliding grooves (461).

6. The switching door structure for a sweeper truck as described in claim 2, characterized in that, The rear side of the door panel body (1) is provided with a sealing element corresponding to the port (6) of the air duct.

7. The switching door structure for a sweeper truck as described in claim 2, characterized in that, The rotating seat (5) is provided with a number of front-to-back extending adjustment holes (51), and the rotating seat (5) is installed on the top of the air duct after passing through the number of adjustment holes (51) with a number of screws.

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