Sweeper anti-collision buffer device with protective structure

Abstract

The utility model provides a motor sweeper anti-collision buffer device with a protective structure, which comprises an anti-collision buffer block, one side of the anti-collision buffer block is rotatably connected with the rear part of a carriage and is vertically arranged, and the rear part of the carriage is provided with an overturning driving device for driving the anti-collision buffer block to overturn to be transversely arranged or reset to be vertically arranged; the protection structure comprises a rear protection piece located below the anti-collision buffer block at intervals and arranged in a left-right extending mode, a plurality of fixing frames connected between the rear protection piece and the anti-collision buffer block, a plurality of fixing bases fixedly arranged on the fixing frames correspondingly, and a plurality of buffer pads fixedly arranged at the bottoms of the fixing bases correspondingly. Through the additional arrangement of the protection structure, the anti-collision buffering device not only has the function of carrying out anti-collision buffering protection by transversely arranging the anti-collision buffering block on the rear side when the motor sweeper works, but also has the function of blocking a vehicle on the rear side through the rear protection piece when the motor sweeper does not work and the anti-collision buffering block is vertically arranged on the rear side.

Description

Technical Field

[0001] The utility model relates to the field of anti-collision buffer devices for cleaning vehicles, in particular to an anti-collision buffer device for cleaning vehicles with a protective structure. Background Art

[0002] In order to prevent the rear vehicles from traveling too fast and causing a rear-end collision with the sanitation sweeper in front, sanitation sweepers usually have a collision avoidance device that can be flipped to a horizontal position on the rear of the sanitation sweeper to reduce the impact of the rear-end collision and reduce the damage to personnel, vehicles and equipment. When not in use, the collision avoidance device is flipped to a vertical position and placed behind the rear door.

[0003] However, due to the high frame height of the sweeper, the height of the anti-collision buffer device is also raised. When the anti-collision buffer device is not in use and placed vertically behind the rear door, the space between its bottom and the ground is too large. For small cars with low chassis, there is a risk of them rushing under the sweeper frame. At this time, the anti-collision buffer device will not play a blocking and buffering role, which poses a huge safety hazard to both the sweeper and the vehicles behind it.

[0004] The purpose of this utility model is to design an anti-collision buffer device for a sweeper with a protective structure in response to the problems existing in the above-mentioned prior art. Utility Model Content

[0005] In view of the problems existing in the above-mentioned prior art, the present invention provides an anti-collision buffer device for a sweeper with a protective structure, which can effectively solve the problems existing in the above-mentioned prior art.

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

[0007] A collision avoidance and buffer device for a cleaning vehicle with a protective structure, the cleaning vehicle comprising a vehicle frame and a vehicle compartment arranged on the vehicle frame, the collision avoidance and buffer device comprising:

[0008] An anti-collision buffer block, one side of which is rotatably connected to the rear of the carriage and is arranged vertically, and the rear of the carriage is provided with a flip driving device for driving the anti-collision buffer block to flip to a horizontal setting or reset to a vertical setting;

[0009] The protective structure includes a rear protective member that is spaced below the anti-collision buffer block and extends left and right, a number of fixing frames connected between the rear protective member and the anti-collision buffer block, a number of fixing seats respectively fixed on the several fixing frames, and a number of buffer pads respectively fixed on the bottoms of the several fixing seats; when the anti-collision buffer block is set vertically, the rear protective member is blocked at the rear side of the frame, and when the anti-collision buffer block is flipped to a horizontal setting, it drives the protective structure to flip until the several buffer pads are against the rear of the frame and the rear protective member is against the bottom of the frame.

[0010] Furthermore, the fixing frame includes a fixing rod vertically connected between the rear guard and the anti-collision buffer block, a reinforcing rod with one end connected to the rear guard and the other end extending upward and forward and then connected to the bottom of the anti-collision buffer block, and the fixing seat is fixed to the sides of the fixing rod and the reinforcing rod and is perpendicular to the reinforcing rod.

[0011] Furthermore, a movable block is provided in the fixed seat, which is driven by an adjustable driving device to move in a direction perpendicular to the reinforcing rod, and a plurality of limit seats are provided at the bottom of the anti-collision buffer block, respectively corresponding to the plurality of fixed seats away from one end of the reinforcing rod, and the limit seat is penetrated by a limit long hole extending downward, and the protective structure also includes a reinforcement member at one end which is slidably connected to the limit long hole by a rotating shaft and the other end is rotatably connected to the corresponding movable block; when the anti-collision buffer block is vertically set, the movable block moves to the fixed seat close to one end of the reinforcing rod, so that the other end of the reinforcement member is tilted backward and tiltedly supported between the fixed seat and the anti-collision buffer block; when the anti-collision buffer block is flipped to a horizontal setting, the movable block moves to one end of the fixed seat away from the reinforcing rod, so that the reinforcement member is horizontally set and vertically supported between the fixed seat and the anti-collision buffer block.

[0012] Furthermore, the adjustment drive device includes a screw rod arranged in the fixed seat and arranged in a direction perpendicular to the reinforcing rod, and a rotating motor for driving the screw rod to rotate. The movable block is threadedly sleeved on the screw rod through a nut, and the outer wall thread of the screw rod and the inner wall thread of the nut are both set as trapezoidal threads with a trapezoidal cross-section.

[0013] Furthermore, the reinforcement is a double-rod structure, and the other end of the reinforcement is rotatably connected to the left and right sides of the movable block through bearings, and the limiting long hole is extended downward in an arc shape toward the rear side.

[0014] Furthermore, the number of the fixing frames is set to two and they are symmetrically distributed on the left and right, and the number of the fixing seats is set to two and they are symmetrically arranged on the far sides of the two fixing frames.

[0015] Furthermore, the flipping drive device includes a flipping frame and several flipping cylinders, one end of the flipping frame is connected to the bottom of the anti-collision buffer block, and the other end is hinged to the lower end of the rear part of the car body, the upper ends of several flipping cylinders are hinged to the upper rear part of the car body, and the lower ends are hinged to the flipping frame; when the telescopic end of the flipping cylinder is extended, it drives the flipping frame to drive the anti-collision buffer block to flip backward to a horizontal setting, and when the telescopic end of the flipping cylinder is retracted, it drives the flipping frame to drive the anti-collision buffer block to flip forward and reset to a vertical setting.

[0016] Therefore, the present invention provides the following effects and / or advantages:

[0017] 1. By adding a protective structure, the anti-collision buffer device not only has the function of providing anti-collision buffer protection by means of the anti-collision buffer block arranged horizontally at the rear side when the sweeper is operating, but also has the function of blocking the rear vehicle through the rear protective part when the sweeper is not operating and the anti-collision buffer block is arranged vertically at its rear side, so as to avoid the risk of the rear vehicle rushing under the sweeper frame. At the same time, by adding a fixed seat and a buffer pad in the protective structure, the anti-collision buffer block can be placed on the vehicle frame through the buffer pad after being arranged horizontally, so that the force applied by the anti-collision buffer block when being collided can be transmitted to the frame for dispersion, thereby improving the anti-collision buffer effect of the anti-collision buffer block, and reducing the probability of the anti-collision buffer block breaking at the rotating connection point with the rear of the vehicle after being hit, thereby avoiding the anti-collision buffer block falling and hitting the rear vehicle to cause secondary damage, thereby improving the overall safety of the anti-collision buffer device.

[0018] 2. Through the structural setting of the reinforcing rod and the fixing rod, the fixing frame is connected between the rear guard and the anti-collision buffer block in a right-angled triangle structure, which improves the structural strength of the fixing frame and thus improves the impact resistance of the rear guard. At the same time, the fixing rod and the reinforcing rod are connected through the fixing seat, which can further enhance the structural stability of the two, thereby improving the overall structural strength of the protective structure and improving the protective effect.

[0019] 3. Through the cooperation between the reinforcing rod, the limiting hole and the movable block, when the anti-collision buffer block is set vertically, the movable block moves to the fixed seat close to one end of the reinforcing rod, so that the other end of the reinforcing piece is tilted backward and tilted between the fixed seat and the anti-collision buffer block. Therefore, when the sweeper is not in operation and the anti-collision buffer block is set vertically at its rear side, when the rear guard is hit by the rear vehicle and the reinforcing rod is damaged and bent to a certain extent, the reinforcing piece set between the limiting long hole and the fixed seat can be used as a buffer support between the anti-collision buffer block and the fixed rod to further prevent It prevents the rear vehicle from crashing into the bottom of the frame of the sweeper; when the anti-collision buffer block is flipped to the horizontal setting, the movable block moves to the end of the fixed seat away from the reinforcement rod, so that the reinforcement is set horizontally and vertically supported between the fixed seat and the anti-collision buffer block, so that when the sweeper is operating, the anti-collision buffer block is set horizontally at the rear side for anti-collision buffering protection, and the reinforcement member vertically arranged between the limiting long hole and the fixed seat is supported between the anti-collision buffer block and the upper end of the fixed seat to increase the support strength of the upper end of the fixed seat, thereby further increasing the support strength of the overall protective structure.

[0020] 4. The movable block is driven to move smoothly in the fixed seat through the cooperation of the screw rod and the nut. At the same time, by setting the threads of the screw rod and the nut to trapezoidal threads, when the movable block moves into place and the reinforcement plays a supporting role, the nut and the screw rod can be self-locked with each other through the trapezoidal threads after being compressed, so that the movable block will not slide on the screw rod. When a large weight is pressed on the reinforcement, the adjustment drive device does not need to use a high-power motor to lock the screw rod, and the locking function of the reinforcement can be realized. Under the premise of improving the support stability of the reinforcement, the driving cost is reduced.

[0021] It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of embodiment 1.

[0023] Figure 2 This is a side view structural diagram of the first embodiment installed on a sweeper with the anti-collision buffer device arranged horizontally.

[0024] Figure 3 This is a schematic diagram of a partial cross-sectional structure of a second embodiment installed on a sweeper with the anti-collision buffer device arranged vertically.

[0025] Figure 4 for Figure 3 Schematic diagram of the structure of the middle mounting seat, reinforcement, limit seat, and adjustment drive device.

[0026] Figure 5This is a schematic diagram of a partial cross-sectional structure of a second embodiment installed on a sweeper with the anti-collision buffer device arranged horizontally.

[0027] Figure 6 for Figure 5 Schematic diagram of the structure of the middle mounting seat, reinforcement, limit seat, and adjustment drive device. DETAILED DESCRIPTION

[0028] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the following embodiments and accompanying drawings:

[0029] Example 1

[0030] refer to Figure 1-2 A collision avoidance and buffer device for a cleaning vehicle 4 with a protective structure 2, wherein the cleaning vehicle 4 includes a vehicle frame 41 and a vehicle compartment 42 provided on the vehicle frame 41, and the collision avoidance and buffer device includes:

[0031] The anti-collision buffer block 1 has one side rotatably connected to the rear of the carriage 42 and is arranged vertically. The rear of the carriage 42 is provided with a flip driving device 43 for driving the anti-collision buffer block 1 to flip to a horizontal setting or reset to a vertical setting;

[0032] The protective structure 2 includes a rear guard 21 that is spaced below the anti-collision buffer block 1 and extends left and right, a number of fixing frames 22 connected between the rear guard 21 and the anti-collision buffer block 1, a number of fixing seats 23 respectively fixed on the several fixing frames 22, and a number of buffer pads 24 respectively fixed on the bottom of the several fixing seats 23. Specifically, the buffer pads 24 are rubber pads; when the anti-collision buffer block 1 is set vertically, the rear guard 21 is blocked at the rear side of the frame 41. When the anti-collision buffer block 1 is flipped to a horizontal setting, it drives the protective structure 2 to flip until the several buffer pads 24 are against the rear of the frame 41 and the rear guard 21 is against the bottom of the frame 41.

[0033] The above-mentioned structure is set up, through the addition of the protective structure 2, so that the anti-collision buffer device not only has the function of providing anti-collision buffer protection by the anti-collision buffer block 1 being horizontally set at the rear side when the sweeper 4 is in operation, but also has the function of blocking the rear vehicle through the rear protective part 21 when the sweeper 4 is not in operation and the anti-collision buffer block 1 is vertically set at its rear side, so as to avoid the risk of the rear vehicle rushing under the frame 41 of the sweeper 4. At the same time, through the addition of the fixed seat 23 and the buffer pad 24 in the protective structure 2, the anti-collision buffer block 1 can be set on the frame 41 through the buffer pad 24 after being set horizontally, so that the force applied by the anti-collision buffer block 1 when being collided can be transmitted to the frame 41 for dispersion, thereby improving the anti-collision buffer effect of the anti-collision buffer block 1, and reducing the probability of the anti-collision buffer block 1 breaking at the rotating connection point with the rear of the car body 42 after being hit, thereby avoiding the anti-collision buffer block 1 falling and hitting the rear vehicle to cause secondary damage, thereby improving the overall safety of the anti-collision buffer device.

[0034] To enhance the overall structural strength of the protective structure 2, the fixing frame 22 includes a fixing rod 221 perpendicularly connected between the rear guard 21 and the crash buffer 1, a reinforcing rod 222 having one end connected to the rear guard 21 and the other end extending upward and forwardly to connect to the bottom of the crash buffer 1, and a fixing seat 23 fixed to the sides of the fixing rod 221 and the reinforcing rod 222 and perpendicular to the reinforcing rod 222. The structural arrangement of the reinforcing rod 222 and the fixing rod 221 creates a right-angled triangle structure connecting the fixing frame 22 between the rear guard 21 and the crash buffer 1, thereby enhancing the structural strength of the fixing frame 22 and, in turn, the impact resistance of the rear guard 21. Furthermore, the connection of the fixing rod 221 and the reinforcing rod 222 by the fixing seat 23 further enhances the structural stability of both, thereby enhancing the overall structural strength of the protective structure 2 and improving the protective effect.

[0035] Specifically, the number of the fixing brackets 22 is set to two and is symmetrically distributed bilaterally. The number of the fixing seats 23 is provided and is symmetrically located on opposite sides of the two fixing brackets 22. Specifically, the two fixing seats 23 correspond to the rear ends of the beams on both sides of the vehicle frame 41. This minimizes the number of fixing brackets 22 while ensuring that the rear protective structure 2 has a certain protective effect, reduces the overall weight of the protective structure 2, saves costs, and reduces the driving burden of the tilting drive device 43.

[0036] Specifically, the flipping drive device 43 includes a flipping frame 431 and several flipping cylinders 432, one end of the flipping frame 431 is connected to the bottom of the anti-collision buffer block 1, and the other end is hinged to the lower end of the rear of the car body 42, the upper ends of several flipping cylinders 432 are hinged to the upper rear part of the car body 42, and the lower ends are hinged to the flipping frame 431; when the telescopic end of the flipping cylinder 432 is extended, it drives the flipping frame 431 to drive the anti-collision buffer block 1 to flip backward to a horizontal setting, and when the telescopic end of the flipping cylinder 432 is retracted, it drives the flipping frame 431 to drive the anti-collision buffer block 1 to flip forward and reset to a vertical setting.

[0037] Example 2

[0038] refer to Figure 3-6 The difference between this embodiment and the first embodiment is that:

[0039] In order to further improve the structural strength of the protective structure 2, a movable block 231 is provided in the fixed seat 23 and is driven by the adjustable driving device 3 to move in a direction perpendicular to the reinforcing rod 222. The bottom of the anti-collision buffer block 1 is provided with a plurality of limit seats 11 corresponding to the ends of the fixed seats 23 away from the reinforcing rod 222. The limit seats 11 are penetrated by a downwardly extending limit long hole 111. The protective structure 2 also includes a reinforcement member 25, one end of which is slidably connected to the limit long hole 111 through a rotating shaft and the other end is rotatably connected to the corresponding movable block 231.

[0040] By the cooperation between the reinforcing rod 222, the limiting hole and the movable block 231, when the anti-collision buffer block 1 is set vertically, the movable block 231 moves to the fixed seat 23 close to one end of the reinforcing rod 222, so that the other end of the reinforcing member 25 is tilted backward and supported obliquely between the fixed seat 23 and the anti-collision buffer block 1. Therefore, when the sweeper 4 is not in operation and the anti-collision buffer block 1 is set vertically at its rear side, when the rear guard 21 is hit by the rear vehicle and the reinforcing rod 222 is damaged and bent to a certain extent, the reinforcing member 25 set between the limiting long hole 111 and the fixed seat 23 can provide buffer support between the anti-collision buffer block 1 and the fixed rod 221, further The invention further provides a method for preventing the rear vehicle from crashing into the bottom of the frame 41 of the sweeper 4; when the anti-collision buffer block 1 is flipped to a horizontal setting, the movable block 231 moves to the end of the fixed seat 23 away from the reinforcing rod 222, so that the reinforcing member 25 is arranged horizontally and vertically supported between the fixed seat 23 and the anti-collision buffer block 1, so that when the sweeper 4 is operating, the anti-collision buffer block 1 is arranged horizontally at the rear side for anti-collision buffer protection, and the reinforcing member 25 vertically arranged between the limiting long hole 111 and the fixed seat 23 can be supported between the anti-collision buffer block 1 and the upper end of the fixed seat 23 to increase the support strength of the upper end of the fixed seat 23, thereby further increasing the overall support strength of the protective structure 2.

[0041] In order to improve the stability of the movement of the movable block 231, the adjustment drive device 3 includes a screw rod 31 arranged in the fixed seat 23 and arranged in a direction perpendicular to the reinforcing rod 222, and a rotating motor 32 for driving the screw rod 31 to rotate. The movable block 231 is threadedly sleeved on the screw rod 31 through a nut, and the outer wall thread of the screw rod 31 and the inner wall thread of the nut are both set as trapezoidal threads 33 with a trapezoidal cross-section. The movable block 231 is driven to move smoothly in the fixed seat 23 by the cooperation of the screw rod 31 and the nut. At the same time, by setting the threads of the screw rod 31 and the nut to trapezoidal threads 33, when the movable block 231 moves into place and the reinforcement 25 plays a supporting role, the nut and the screw rod 31 can be self-locked with each other through the trapezoidal threads 33 after being compressed, so that the movable block 231 will not slide on the screw rod 31. When a large weight is pressed on the reinforcement 25, the adjustment drive device 3 does not need to use a high-power motor to lock the screw rod 31, and can realize the locking function of the reinforcement 25. Under the premise of improving the supporting stability of the reinforcement 25, the driving cost is reduced.

[0042] To enhance the structural stability of the reinforcement 25, the reinforcement 25 has a dual-rod structure. The other end of the reinforcement 25 is rotatably connected to the left and right sides of the movable block 231 via bearings. The elongated retaining hole 111 extends downwardly and rearwardly in an arc. This dual-rod structure enhances the structural strength of the reinforcement 25. Furthermore, the elongated retaining hole 111 extends downwardly and rearwardly in an arc, improving the smoothness of sliding at one end of the reinforcement 25 and thereby enhancing the overall structural stability of the reinforcement 25.

[0043] It should be noted that the implementation principle and technical effects of this embodiment are the same as those of the first embodiment. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents in the first embodiment.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cleaning vehicle anti-collision buffer device with a protective structure, wherein the cleaning vehicle (4) comprises a vehicle frame (41) and a vehicle compartment (42) provided on the vehicle frame (41), characterized in that: The anti-collision buffer device comprises: An anti-collision buffer block (1) is rotatably connected to the rear of the carriage (42) on one side and is arranged vertically. The rear of the carriage (42) is provided with a flip driving device (43) for driving the anti-collision buffer block (1) to flip to a horizontal setting or to reset to a vertical setting; The protective structure (2) comprises a rear protective member (21) arranged at a distance below the anti-collision buffer block (1) and extending left and right, a plurality of fixing frames (22) connected between the rear protective member (21) and the anti-collision buffer block (1), a plurality of fixing seats (23) respectively fixed on the fixing frames (22), and a plurality of buffer pads (24) respectively fixed on the bottoms of the fixing seats (23); when the anti-collision buffer block (1) is arranged vertically, the rear protective member (21) is blocked at the rear side of the vehicle frame (41); when the anti-collision buffer block (1) is turned over to a horizontal setting, the protective structure (2) is driven to turn over until the plurality of buffer pads (24) are against the rear of the vehicle frame (41) and the rear protective member (21) is against the bottom of the vehicle frame (41).

2. The anti-collision buffer device for a cleaning vehicle with a protective structure according to claim 1, characterized in that: The fixing frame (22) comprises a fixing rod (221) vertically connected between the rear guard (21) and the anti-collision buffer block (1), a reinforcing rod (222) having one end connected to the rear guard (21) and the other end extending upward and forward and then connected to the bottom of the anti-collision buffer block (1), and the fixing seat (23) is fixed to the sides of the fixing rod (221) and the reinforcing rod (222) and is perpendicular to the reinforcing rod (222).

3. The anti-collision buffer device for a cleaning vehicle with a protective structure according to claim 2, characterized in that: The fixing seat (23) is provided with a movable block (231) which is driven by the adjustment driving device (3) to move in a direction perpendicular to the reinforcing rod (222); the bottom of the anti-collision buffer block (1) is provided with a plurality of limit seats (11) corresponding to the ends of the fixing seats (23) away from the reinforcing rod (222); the limit seats (11) are penetrated by a limit long hole (111) extending downward; the protective structure (2) also includes a reinforcement member (25) with one end slidably connected to the limit long hole (111) through a rotating shaft and the other end rotatably connected to the corresponding movable block (231); when the When the anti-collision buffer block (1) is arranged vertically, the movable block (231) moves to one end of the fixed seat (23) close to the reinforcing rod (222), so that the other end of the reinforcing member (25) is arranged to tilt backward and is tilted and supported between the fixed seat (23) and the anti-collision buffer block (1); when the anti-collision buffer block (1) is turned over to a horizontal arrangement, the movable block (231) moves to one end of the fixed seat (23) away from the reinforcing rod (222), so that the reinforcing member (25) is arranged to be horizontal and vertically supported between the fixed seat (23) and the anti-collision buffer block (1).

4. The anti-collision buffer device for a cleaning vehicle with a protective structure according to claim 3, characterized in that: The adjustment drive device (3) comprises a screw rod (31) arranged in the fixing seat (23) and arranged in a direction perpendicular to the reinforcing rod (222), and a rotary motor (32) for driving the screw rod (31) to rotate. The movable block (231) is screwed onto the screw rod (31) through a nut, and the outer wall thread of the screw rod (31) and the inner wall thread of the nut are both configured as trapezoidal threads (33) with a trapezoidal cross-section.

5. The anti-collision buffer device for a cleaning vehicle with a protective structure according to claim 3, characterized in that: The reinforcing member (25) is a double-rod structure, and the other end of the reinforcing member (25) is rotatably connected to the left and right sides of the movable block (231) through bearings, and the limiting long hole (111) is arranged to extend downward in an arc shape toward the rear side.

6. The anti-collision buffer device for a cleaning vehicle with a protective structure according to claim 1, characterized in that: The number of the fixing frames (22) is set to two and they are symmetrically distributed on the left and right sides. The number of the fixing seats (23) is set to two and they are symmetrically arranged on the far sides of the two fixing frames (22).

7. The anti-collision buffer device for a cleaning vehicle with a protective structure according to claim 1, characterized in that: The flip drive device (43) comprises a flip frame (431) and a plurality of flip cylinders (432), one end of the flip frame (431) is connected to the bottom of the anti-collision buffer block (1), and the other end is hinged to the lower end of the rear portion of the carriage (42); the upper ends of the plurality of flip cylinders (432) are hinged to the upper rear portion of the carriage (42), and the lower ends are hinged to the flip frame (431); when the telescopic end of the flip cylinder (432) is extended, the flip frame (431) is driven to drive the anti-collision buffer block (1) to flip backward to a horizontal setting; when the telescopic end of the flip cylinder (432) is retracted, the flip frame (431) is driven to drive the anti-collision buffer block (1) to flip forward and return to a vertical setting.

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