CN116516875B - Negative pressure hoisting device that high-efficient strong inhale - Google Patents

Abstract

The invention discloses a negative pressure lifting device with high efficiency and strong suction, which comprises a connecting pipeline, wherein a volute is fixedly arranged on the connecting pipeline, a turbine is rotationally arranged in the volute, a lifting pipeline is fixedly arranged at one end of the connecting pipeline, a conveying belt is arranged in the lifting pipeline, and a plurality of lifting plates are fixedly arranged on the surface of the conveying belt; when in work, proper working parameters can be reasonably selected according to the condition of the road surface to carry out cleaning operation, the negative pressure fan is selected to have proper power, the rear sweeping roller is selected to have proper height, and the operation cost is reduced on the premise of ensuring the working quality; can handle when blockking up to the negative pressure wind channel, adopt the mode of secondary clearance barrier, not only can handle the problem that long-strip rubbish can't inhale smoothly and sweep, can also be to the sleet weather, the rubbish absorbs water more clustered problem, breaks up the rubbish, avoids rubbish to block up the negative pressure wind channel, avoids negative pressure fan to last the consumption work.

Description

An efficient and strong suction negative pressure lifting device

Technical field

The invention belongs to the technical field of negative pressure lifting, and specifically relates to a negative pressure lifting device with high efficiency and strong suction.

Background technique

At present, suction sweepers at home and abroad are mainly divided into two categories: mechanical cleaning and suction sweeping.

When the high-speed sweeper is moving, the large sweeping disk and the small sweeping disk sweep the garbage within the cleaning range into the interior of the vehicle, and a rubber strip is installed at the bottom of the middle baffle. The rubber strip is in contact with the ground to avoid being caught by the large sweeping disk and The garbage swept by the small sweeper flies out of the sweeping range of the road sweeper from the opposite side due to inertia. As the sweeper moves forward, after the rear sweep roller comes into contact with the garbage, the garbage is thrown upward to the conveyor belt under the high-speed rotation of the rear sweep roller. The bottom baffle is between the conveyor belt and the rear sweep roller to allow the material to It can be smoothly transported to the conveyor belt, which then transports the materials to the trash bin to complete the cleaning work.

On the basis of the original structure, there is also a sweeping roller that can adjust the height of the rear sweeping roller according to the road conditions. Its working principle is that a lifting hydraulic cylinder installed between the frame and the positioning rod controls the positioning rod and the frame. angle, and an adjustment spring is installed between the movable rod and the spring frame. When the road surface is uneven, the rear sweep roller moves upward, driving the movable rod to rotate around the hinged axis between the positioning rod, but the position of the positioning rod is controlled by the hydraulic cylinder. , so the angle between the positioning rod and the frame remains unchanged, so the spring is compressed after being stressed, and generates elastic force to ensure that the pressure on the sweeping roller when it contacts the ground is maintained within a certain range, and the sweeping roller can be adjusted according to the height of the road surface the height of.

Among them, the movable rod can rotate around the hinged axis between the movable rod and the positioning rod, but at the same time, the limit card extends into the inside of the movable rod, which plays a role of limiting the position and prevents the movable rod from moving downward. Therefore, the movable rod and the installation The rear sweeping roller on the movable lever can only rotate upward around the hinge axis between the movable lever and the positioning lever.

The main problems with mechanical cleaning devices are:

① The roller brush is prone to malfunction. When cleaning slender or flexible objects, garbage can easily become entangled on the roller brush;

② Smaller particles of garbage cannot be removed. The contact area between the small particles of garbage and the roller brush is small, and it is not easy to be thrown up by the roller brush during operation, so it is easy to cause the problem of being unable to be thrown into the conveyor belt;

③ The dust is large and there is secondary pollution. During the cleaning process, the dust is easily affected by external airflow and other factors, generating dust and causing secondary pollution. The maintenance and repair of the rear sweep roller is difficult, which shortens the service life of the rear sweep roller. not tall.

The suction-sweeping road sweeper mainly uses a negative pressure fan to create negative pressure in the suction-sweeping device, thereby sucking garbage into the dustbin. When working, the large sweeping plate and the small sweeping plate sweep the garbage in the working area toward the bottom of the vehicle. A middle baffle is installed in the middle of the vehicle to prevent garbage from flying out from the other side through the bottom of the vehicle. As the vehicle moves forward, the garbage After entering the suction and sweeping port of the suction and sweeping device, under the negative pressure condition generated by the negative pressure fan, it is sucked into the garbage collection box to complete the suction and sweeping work.

The main problems with suction-sweeping cleaning devices are:

① The cost is high and the power consumption is high. The negative pressure fan of the suction-sweeping cleaning device consumes a lot of power and requires the installation of an auxiliary engine, resulting in high production and use costs.

② It is more difficult to remove large or elongated garbage. Large pieces of garbage require higher negative pressure to be sucked up. If the fan power is small, it is easy to be unable to suck up the garbage. For long strips of garbage, since the cross-section of the air duct of the suction and sweeping cleaning device is mainly circular, the long strips of garbage cannot enter smoothly from the suction port, which may easily lead to the problem of materials staying in the suction port, and at the same time affect the subsequent suction and sweeping. Work.

③When the air flow channel is blocked, it cannot be dealt with by itself. When the air flow channel is blocked, manual labor is required to solve the blockage problem after stopping the machine, which reduces work efficiency and safety.

④ In rainy and snowy weather, the suction-sweeping cleaning device will inhale more rain and snow, affecting garbage dumping, and increasing the total weight of materials, resulting in increased power consumption.

Whether it is a mechanical cleaning device or a suction sweeping device, there are the following problems:

① When working, both devices are unable to select suitable working parameters for cleaning operations based on the type and amount of garbage present on the road. In order to ensure the quality of the work, the cleaning operation needs to be completed with greater power, but when there is no garbage Poor pavement will cause a greater waste of resources and increase operating costs.

② In special weather and external environments such as rain, snow, sand, and low temperatures, the characteristics of the road surface, garbage, and cleaning devices themselves have changed. Appropriate working parameters need to be selected based on external environmental conditions. However, existing devices do not have different external environments. working mode under special conditions, so the cleaning quality will be reduced under special conditions.

Contents of the invention

In order to solve the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a negative pressure lifting device with high efficiency and strong suction.

The technical solutions adopted by the present invention are:

An efficient and strong suction negative pressure lifting device, including a connecting pipe, a volute is fixed on the connecting pipe, a turbine is rotated in the volute, and a lifting pipe is fixed on one end of the connecting pipe. There is a conveyor belt in the lifting pipe, and a plurality of lifting plates are fixed on the surface of the conveyor belt; the lifting pipe is provided with a ground-attached frame at one end away from the connecting pipe, and a removable frame is installed in the ground-attached frame. Rear sweep roller; one side of the lifting pipe is fixedly provided with a clearing box, a working space is provided in the clearing box, and a plurality of mounting seats are fixedly provided on one side of the inner wall of the working space, each of which An obstacle clearing cylinder is fixed on the mounting base. A load-bearing rod is fixed on the piston rod of the obstacle-clearing cylinder. A sliding rod is slidably provided on the load-bearing rod. One end of the sliding rod is away from the obstacle clearing cylinder. Fixed with clearing head.

As a preferred option of the present invention, an air outlet is fixedly provided on one side of the volute, a filter plate is provided between the air outlet of the volute and the connecting pipe, and the filter plate is fixedly connected to the connecting pipe. A trash outlet is fixedly provided on the side of the connecting pipe away from the volute.

As a preferred option of the present invention, the conveyor belt is driven by two pulleys, and the two pulleys are respectively rotatably mounted on a mounting plate, and the mounting plate is fixedly connected to the inner wall of the lifting pipe; the obstacle removal box A sealing plate is provided between the lifting pipe and the sealing plate. The sealing plate is fixedly connected to the lifting pipe. One of the pulleys penetrates the sealing plate and is rotationally connected to the sealing plate. The sealing plate is far away from the sealing plate. A driving motor is fixed on one side of the lifting pipe, and the output shaft of the driving motor is fixedly connected to one of the pulleys that penetrates the sealing plate.

As a preferred option of the present invention, a flared pipe is provided between the lifting pipe and the floor-attached frame, and both ends of the expanded pipe are fixedly connected to the lifting pipe and the floor-attached frame respectively; One end of the floor frame away from the lifting pipe is open, and a placement box is provided on both sides of the floor frame. A fixing post is fixed on the placement box, and the fixing post is fixed at one end away from the placement box. It is arranged on the floor-attached frame; an adjustment mechanism is provided in the placement box.

As a preferred option of the present invention, the adjustment mechanism includes a fixed frame, which is fixedly connected to the inner wall of the placement box. A positioning rod is provided on one side of the fixed frame, and the positioning rod is hingedly connected to the fixed frame. , a lifting cylinder is provided on one side of the fixed frame, the cylinder barrel of the lifting cylinder is hinged with the positioning rod, the piston rod of the lifting cylinder is hinged with the fixed frame; the positioning rod is away from the fixed frame A movable frame is removably installed on one end of the movable frame. A rotating shaft is provided for rotation on the movable frame, and a rear sweeping roller is provided for rotation on the rotating shaft.

As a preferred option of the present invention, the positioning rod is hingedly connected to the movable frame, a spring frame is fixed on the positioning rod, a first telescopic rod is provided on one side of the spring frame, and the spring frame is connected to the third telescopic rod. A telescopic rod is hinged, one end of the first telescopic rod away from the spring frame is hinged with the movable frame, and a control spring is provided on the peripheral side of the first telescopic rod; the movable frame penetrates the placement box and the At the connection point of the floor-attached frame, a moving motor is slidably provided on the side wall of the ground-attached frame, and the output shaft of the moving motor is drivingly connected to the rotation shaft.

As a preferred option of the present invention, a chute is fixedly provided on the load-bearing rod, the chute coincides with the axis of the load-carrying rod, the sliding rod is slidably disposed in the chute, and a chute is placed in the chute. Return spring, one end of the return spring is in contact with the piston rod of the obstacle clearing cylinder, and the other end of the return spring is fixed with a sliding plate, and the sliding plate is fixedly connected to the sliding rod.

As a preferred option of the present invention, the sliding rod is provided with a mounting groove that coincides with the axis of the sliding rod. A connecting rod is provided in the mounting groove, and one end of the connecting rod is connected to the sliding rod. Hinged, the other end of the connecting rod is provided with a side plate, the side plate is provided with a movable groove, the movable groove is aligned with the connecting rod, and the side plate is hinged with the connecting rod.

As a preferred option of the present invention, one side plate is provided on both sides of the sliding rod. The two side plates and the sliding rod cooperate to form a complete cylinder, and the diameter of the formed cylinder is equal to the diameter of the cylinder. The diameters of the load-bearing rods are the same.

As a preferred option of the present invention, a second telescopic rod is provided between the two side plates. Both ends of the second telescopic rod are fixedly connected to the two side plates respectively. There is a second telescopic rod inside the second telescopic rod. Tension spring, the two ends of the tension spring are fixedly connected to the two side plates respectively; the one end of the load-bearing rod close to the obstacle clearing head is fixedly provided with an alignment groove, the alignment groove is connected to the The diameter of the second telescopic rod is adapted, and the second telescopic rod penetrates the mounting groove.

The beneficial effects of the present invention are: as a high-efficiency and strong-suction negative pressure lifting device, the present invention can reasonably select suitable working parameters for cleaning operations according to the conditions of the road surface during operation. The negative pressure fan selects appropriate power, and the rear sweep roller Choose the appropriate height to reduce operating costs while ensuring work quality; when the negative pressure air duct is blocked, it can be dealt with by using the secondary obstacle clearance method, which can not only solve the problem of long strips of garbage that cannot be sucked and swept smoothly, but also It can also solve the problem of the garbage absorbing more water and forming clumps in rainy and snowy weather. The garbage can be scattered to prevent the garbage from blocking the negative pressure air duct and avoiding the continuous power consumption of the negative pressure fan.

Description of the drawings

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic front structural view of Figure 1 of the present invention;

Figure 3 is a side structural schematic diagram of Figure 1 of the present invention;

Figure 4 is a schematic structural diagram of the A-A direction in Figure 3 of the present invention;

Figure 5 is a schematic structural diagram of the B-B direction in Figure 3 of the present invention;

Figure 6 is a schematic structural diagram of the rear sweeping roller, that is, the adjusting mechanism of Figure 1 of the present invention;

Figure 7 is a schematic diagram of the clearing head of Figure 1 and its related structures of the present invention;

Figure 8 is a schematic structural diagram of a side panel of Figure 7 of the present invention after being hidden;

Figure 9 is a schematic structural diagram of the closed state of Figure 7 of the present invention;

Figure 10 is a schematic structural diagram of the open state of Figure 7 of the present invention;

In the figure, the volute 11, the filter plate 12, the connecting pipe 13, the air outlet 14, the obstacle removal box 15, the ground frame 16, the expanded pipe 17, the placement box 18, the fixed column 19, the lifting pipe 20, the miscellaneous outlet 21 , lifting plate 22, mounting plate 23, pulley 24, rear sweep roller 25, rotating shaft 26, clearing head 27, sealing plate 28, conveyor belt 29, mounting base 30, clearing cylinder 31, working space 32, fixed frame 33. Positioning rod 34, lifting cylinder 35, spring frame 36, first telescopic rod 37, movable frame 38, chute 40, control spring 41, connecting rod 42, movable groove 43, side plate 44, load-bearing rod 45, second Telescopic rod 46, sliding plate 47, return spring 48, sliding rod 49, alignment groove 50, and placement groove 51.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention. That is, the described embodiments are only some embodiments of the present invention, rather than all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the invention provided in the appended drawings is not intended to limit the scope of the claimed invention, but rather to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without any creative work fall within the scope of protection of the present invention.

The specific implementation of the present invention will be described below with reference to Figures 1-10. An efficient and strong suction negative pressure lifting device includes a connecting pipe 13. A volute 11 is fixed on the connecting pipe 13, and the volute 11 rotates inside. A turbine is provided, and a lifting pipe 20 is fixed at one end of the connecting pipe 13. A conveyor belt 29 is installed in the lifting pipe 20, and a plurality of lifting plates 22 are fixed on the surface of the conveyor belt 29; The end of the pipe 20 away from the connecting pipe 13 is provided with a ground frame 16, and a rear sweeping roller 25 is detachably installed in the ground frame 16; a clearing box 15 is fixedly provided on one side of the lifting pipe 20, so The clearing box 15 is provided with a working space 32, and a plurality of mounting seats 30 are fixed on one side of the inner wall of the working space 32. Each of the mounting seats 30 is fixedly provided with a clearing cylinder 31, so A load-bearing rod 45 is fixed on the piston rod of the obstacle-clearing cylinder 31. A sliding rod 49 is slidably mounted on the load-bearing rod 45. An obstacle-clearing head 27 is fixed on one end of the sliding rod 49 away from the obstacle clearing cylinder 31. . The clearing cylinder 31 can effectively solve the problem of negative pressure air duct blockage, and cooperates with the rear sweeping roller 25 to further reduce the power consumption of the turbine fan; the turbine fan can lift larger and larger amounts of garbage into the road suction sweeper without requiring a high speed. trash can inside.

Advantageously, an air outlet 14 is fixedly provided on one side of the volute 11, and a filter plate 12 is provided between the air outlet of the volute 11 and the connecting pipe 13. The filter plate 12 is connected to the connecting pipe 13. 13 is fixedly connected, and a miscellaneous outlet 21 is fixedly provided on the side of the connecting pipe 13 away from the volute 11 . The setting position of the volute 11 is not limited to the position shown in the drawings. The setting position of the volute 11 can consider the clogging of the filter plate 12, and can be set at an angle or on the side of the connecting pipe 13, thereby reducing the clogging of the filter plate 12. , mainly consider the problem that the filter plate 12 is blocked by leaf garbage.

Advantageously, the conveyor belt 29 is driven by two pulleys 24, and the two pulleys 24 are respectively rotatably installed on the mounting plate 23, and the mounting plate 23 is fixedly connected to the inner wall of the lifting pipe 20; A sealing plate 28 is provided between the obstacle clearance box 15 and the lifting pipe 20 . The sealing plate 28 is fixedly connected to the lifting pipe 20 . One of the pulleys 24 penetrates the sealing plate 28 and is connected with the sealing plate 28 . The plate 28 is rotatably connected. A driving motor is fixed on the side of the sealing plate 28 away from the lifting pipe 20 . The output shaft of the driving motor is fixedly connected to a pulley 24 that penetrates the sealing plate 28 . The driving motor is separated from the lifting pipe 20 by the sealing plate 28, and the driving motor will not affect the lifting of the garbage.

Advantageously, a flared pipe 17 is provided between the lifting pipe 20 and the ground-attached frame 16, and both ends of the expanded pipe 17 are fixedly connected to the lifting pipe 20 and the ground-attached frame 16 respectively; One end of the ground-attached frame 16 away from the lifting pipe 20 is open. A placement box 18 is provided on both sides of the ground-attached frame 16. A fixing post 19 is fixed on the placement box 18. One end of the column 19 away from the placement box 18 is fixedly mounted on the ground frame 16; the placement box 18 is provided with an adjustment mechanism. The adjusting mechanism is also arranged in a well-sealed installation box 18, and the dust accumulated inside is small and convenient for repair and maintenance.

Advantageously, the adjustment mechanism includes a fixed frame 33, which is fixedly connected to the inner wall of the placement box 18. A positioning rod 34 is provided on one side of the fixed frame 33, and the positioning rod 34 is connected to the inner wall of the placement box 18. The fixed frame 33 is hinged. A lifting cylinder 35 is provided on one side of the fixed frame 33. The cylinder barrel of the lifting cylinder 35 is hinged with the positioning rod 34. The piston rod of the lifting cylinder 35 is hinged with the fixed frame 33. ; The end of the positioning rod 34 away from the fixed frame 33 is detachably mounted with a movable frame 38. The movable frame 38 is provided with a rotation shaft 26, and the rotation shaft 26 is provided with a rear sweeping roller 25. The lifting cylinder 35 can adjust the height of the rear sweeping roller 25 so that the garbage suction sweeper can work in different environments and ensure good contact between the rear sweeping roller 25 and the ground.

Advantageously, the positioning rod 34 is hingedly connected to the movable frame 38. A spring frame 36 is fixed on the positioning rod 34. A first telescopic rod 37 is provided on one side of the spring frame 36. The spring frame 36 It is hingedly connected with the first telescopic rod 37. One end of the first telescopic rod 37 away from the spring frame 36 is hingedly connected with the movable frame 38. A control spring 41 is provided on the peripheral side of the first telescopic rod 37; The movable frame 38 penetrates the connection between the placement box 18 and the floor-attached frame 16. A mobile motor is slidably provided on the side wall of the floor-attached frame 16. The output shaft of the mobile motor and the rotation shaft 26 Transmission connection. The telescopic rod 37 and the control spring 41 cooperate to passively adjust the height of the rear sweeping roller 25. The rotating shaft 26 is not directly fixed to the inner wall of the floor-attaching frame 16. There is a guide groove inside the floor-attaching frame 16, which can be connected with the rotating shaft. 26 small slide.

Advantageously, a chute 40 is fixed on the load-bearing rod 45, the chute 40 coincides with the axis of the load-bearing rod 45, and the sliding rod 49 is slidably disposed in the chute 40. The chute 40 is A return spring 48 is disposed inside 40. One end of the return spring 48 is in contact with the piston rod of the obstacle clearing cylinder 31. The other end of the return spring 48 is fixedly provided with a sliding plate 47. The sliding plate 47 is connected to the piston rod of the obstacle clearing cylinder 31. The sliding rod 49 is fixedly connected. There is a non-rigid connection between the clearing cylinder 31 and the clearing head 27. The sliding plate 47 and the sliding rod 49 can realize the error start of the clearing head 27. The clearing head 27 will not be forced to push out due to the hard obstruction. Damage to cylinder 31 and conveyor belt 29.

Advantageously, the sliding rod 49 is provided with a mounting groove 51 which coincides with the axis of the sliding rod 49 . A connecting rod 42 is provided in the mounting groove 51 , and one end of the connecting rod 42 is connected to the axis of the sliding rod 49 . The sliding rod 49 is hinged. The other end of the connecting rod 42 is provided with a side plate 44. The side plate 44 is provided with a movable groove 43. The movable groove 43 is aligned with the connecting rod 42. The side plate 44 is hingedly connected to the connecting rod 42 . Before the side plate 44 is ejected, the entire assembly of the clearing head 27 is cylindrical and can pass through the hole in the sealing plate 28 smoothly. The side plate 44 is allowed to be ejected only after it completely passes through the sealing plate 28. This prevents the obstacle clearing head 27 from bouncing off as soon as it contacts the obstacle side plate 44, thereby losing the first level obstacle clearing effect.

Advantageously, one side plate 44 is provided on both sides of the sliding rod 49. The two side plates 44 and the sliding rod 49 cooperate to form a complete cylinder, and the diameter of the formed cylinder is consistent with the shape of the cylinder. The diameters of the load-bearing rods 45 are the same. The two side plates 44 cooperate. When the obstacle cannot be easily pushed, the secondary obstacle clearing state is adopted to apply force from the inside of the obstacle, thereby breaking up the obstacle and making it easier to be lifted by the conveyor belt 29.

Advantageously, a second telescopic rod 46 is provided between the two side plates 44 , and both ends of the second telescopic rod 46 are fixedly connected to the two side plates 44 respectively. A tension spring is provided, and both ends of the tension spring are fixedly connected to the two side plates 44 respectively; an alignment groove 50 is fixedly provided on one end of the load-bearing rod 45 close to the obstacle clearing head 27, and the The alignment groove 50 is adapted to the diameter of the second telescopic rod 46 , and the second telescopic rod 46 passes through the placement groove 51 . The second telescopic rod 46 gives the side plates 44 the ability to reset. When the obstacle no longer compresses the return spring 48, the tension spring ensures that the second telescopic rod 46 always contacts the alignment groove 50 until the two side plates 44 are fully retracted. And close to the sliding rod 49; the sliding range of the sliding rod 49 is limited and will not break away from the chute 40.

Working principle of the invention:

In the initial state, the return spring 48 is in a compressed state, the tension spring is in a stretched state, and the control spring 41 is in a natural state; the connecting rod 42 and the sliding rod 49 are partially contracted in the working space 32;

The present invention is used with a road suction sweeper, which is equipped with a garbage bin. When the lid of the garbage bin is closed, there is only one inlet that communicates with the connecting pipe 13 and cooperates with the outlet 21; the present invention combines the traditional The mechanical cleaning device and the suction-sweeping device are combined, and the suction-sweeping device is used to process light-weight and small-volume garbage, and the mechanical cleaning device is used to clean large-mass and large-volume garbage;

The road suction sweeper moves forward, and the motor that controls the rotation of the turbine in the volute 11 is started (not shown in the figure). One side of the garbage bin is sealed, causing a negative pressure to form on the side of the connecting pipe 13, the lifting pipe 20, and the rotating shaft 26, and the ground frame 16 is The side facing the road suction sweeper is provided with a soft curtain to allow garbage to pass. After the garbage enters the floor-mounted frame 16, it has a tendency to be lifted; in this state, light garbage can be directly sucked up, such as paper scraps. , leaves, etc.;

The drive motor starts to drive the conveyor belt 29 to rotate. When the garbage in the ground frame 16 contacts the rotating conveyor belt 29, it will move with the lifting plate 22 on the conveyor belt 29 and be lifted. From the perspective of Figure 4, The conveyor belt 29 rotates counterclockwise, and the garbage is lifted from the right side of the conveyor belt 29; in this state, heavy garbage can be lifted, such as branches, small gravel, etc.;

During the above process, the mobile motor is started in cooperation to drive the rotating shaft 26 to rotate, and the rear sweeping roller 25 rotates along with the rotating shaft 26. From the perspective of Figure 4, the rotating shaft 26 rotates clockwise to lift the garbage on the left side, thereby Make it easier for the garbage to contact the conveyor belt 29; thereby reducing the power consumption of the turbine fan, the turbine fan can lift and collect the garbage without high power. When the garbage is lifted to just below the volute 11, the garbage will be discharged from the outlet. The garbage opening 21 is dropped into the garbage bin. The garbage bin is not an empty structure. There are multiple guide plates in the garbage bin to prevent the garbage falling into the garbage bin from being sucked away.

In addition, the control hub in the road suction sweeper can detect the operating status of the conveyor belt 29 (motor speed sensor, conventional technical means). When the operating status deviation of the conveyor belt 29 is too large (not completely stuck and unable to rotate, if If the conveyor belt 29 is completely stuck, the work needs to be stopped for inspection. It is difficult for the conveyor belt 29 to be completely stuck because the garbage that can enter the floor-mounted frame 16 is first subjectively judged by the driver's naked eyes, and then the shaft 26 is rotated The curtain in front performs objective screening. At this time, the garbage that can enter the inside of the lifting duct 20 will not be excessively large pieces of garbage); at this time, the negative pressure air duct (the internal space of the lifting duct 20) may be blocked. situation, no matter whether the actual situation is blocked, the obstacle clearing cylinder 31 will start; the obstacle clearing cylinder 31 is specifically a hydraulic cylinder, a conventional driving device, including a cylinder barrel and a piston rod. After the obstacle clearing cylinder 31 is started, its piston rod will move relative to The cylinder tube extends, and the piston rod drives the load-bearing rod 45, the sliding rod 49, the side plate 44 and the obstacle removal head 27 to extend together and pass through the sealing plate 28. After the obstacle removal head 27 contacts the blockage, it pushes the blockage to change its original position. The blockage state is such that its length direction (the general direction, for example, after a tree branch entering vertically into the lifting pipe 20 is stuck, it will be pushed into a straight state by the clearing head 27) is forced to be parallel to the axis of the load-bearing rod 45 (the blockage Usually irregular, the contact point between the obstruction clearing head 27 and the blockage is very small. When the conveyor belt 29 continues to rotate, the obstruction clearing head 27 will not push the obstruction straight forward); thus solving the problem of blockage;

If the blockage is serious, the clearing head 27 cannot push the object after contacting the blocked object. After the clearing head 27 contacts the blockage, the clearing cylinder 31 continues to start, and the piston rod of the clearing cylinder 31 continues to extend. At this time, the clearing cylinder 31 continues to start. The barrier 27 cannot move, but the load-bearing rod 45 can move. The return spring 48 is compressed, and the sliding rod 49 and the load-bearing rod 45 slide relative to each other. During this process, the alignment groove 50 at the end of the load-bearing rod 45 presses against the second telescopic rod. 46. The second telescopic rod 46 is forced to move and stretch. The tension spring inside the second telescopic rod 46 is further stretched. The two side plates 44 gradually open under the action of the connecting rod 42. When the two side plates During the process of gradually opening 44, the two side plates 44 will also move together with the load-bearing rod 45; with reference to Figures 9 and 10, the state of the two side plates 44 changes. At this time, the two side plates 44 will disperse the blockage. Open (for example, in rainy weather, the leaves bunched up on the surface of the conveyor belt 29 can be lifted smoothly after being broken up by the two side plates 44);

In addition, when a blockage occurs and the obstacle clearing head 27 pre-pushes the blockage, if the obstacle clearing head 27 contacts the lifting plate 22 when moving, it will also happen that the obstacle clearing head 27 cannot continue to move and the two side plates 44 open. situation; the material of the lifting plate 22 is hard rubber, and it is allowed to bend along the direction of garbage lifting. When the two side plates 44 are opened (the two side plates 44 are respectively contacted by the obstacle clearing head 27, the two sides of the lifting plate 22 side), a lifting plate 22 contacted by the clearing head 27 is forced to bend after moving and contacting a side plate 44 on the lower side, thereby smoothly passing the load-bearing rod 45, and then the return spring 48 and the tension Under the action of the spring, the two side plates 44 are reset, and the states of the sliding rod 49 and the load-bearing rod 45 are reset; at this time, the obstacle clearing head 27 can be stretched out normally to contact the blockage.

It should be noted that multiple clearing cylinders 31 do not interfere with each other when working at the same time. Even if the blockage is pushed to the leftmost side of the conveyor belt 29, as long as the conveyor belt 29 does not stop rotating, it will not affect the negative pressure lifting work of the present invention. , just need to increase the power consumption of the turbine fan, and when the blockage is resolved, the turbine fan can immediately reduce the power consumption.

The working principle of the placement box 18: the lifting cylinder 35 can adjust the overall height of the rear sweeping roller 25. When the working environment changes, in order to adapt to the slope of the road, the height of the rear sweeping roller 25 is adjusted to a suitable position. The first telescopic rod 37 The height of the rear sweeping roller 25 can be adjusted passively. When the road is bumpy, the first telescopic rod 37 can always make the rear sweeping roller 25 in good contact with the ground to prevent small garbage from being missed; in addition, the installation of the volute 11 The location is not limited to the top of the connecting pipe 13, but can preferably be the side of the connecting pipe 13, which can effectively reduce the situation of garbage clogging the filter plate 12.

In the description of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

The above contents are only examples and descriptions of the structure of the present invention. Those skilled in the art may make various modifications or supplements to the described specific embodiments or substitute them in similar ways, as long as they do not deviate from the structure of the invention or Anything beyond the scope defined by the claims shall belong to the protection scope of the present invention.

Claims (6)

1. The utility model provides a negative pressure hoisting device that high-efficient strong suction, its characterized in that: the spiral casing is fixedly arranged on the connecting pipeline, a worm wheel is rotationally arranged in the spiral casing, a lifting pipeline is fixedly arranged at one end of the connecting pipeline, a conveying belt is arranged in the lifting pipeline, and a plurality of lifting plates are fixedly arranged on the surface of the conveying belt; a floor-sticking frame is arranged at one end, far away from the connecting pipeline, of the lifting pipeline, and a rear sweeping roller is detachably arranged in the floor-sticking frame; a barrier removing box is fixedly arranged on one side of the lifting pipeline, a working space is arranged in the barrier removing box, a plurality of mounting seats are fixedly arranged on the inner wall of one side of the working space, each mounting seat is fixedly provided with a barrier removing cylinder, a bearing rod is fixedly arranged on a piston rod of the barrier removing cylinder, a sliding rod is arranged on the bearing rod in a sliding manner, and a barrier removing head is fixedly arranged at one end of the sliding rod, which is far away from the barrier removing cylinder;

the bearing rod is fixedly provided with a sliding groove, the sliding groove coincides with the axis of the bearing rod, the sliding rod is arranged in the sliding groove in a sliding way, a reset spring is arranged in the sliding groove, one end of the reset spring is in contact with a piston rod of the obstacle clearance cylinder, the other end of the reset spring is fixedly provided with a sliding plate, and the sliding plate is fixedly connected with the sliding rod;

the sliding rod is provided with a positioning groove, the positioning groove coincides with the axis of the sliding rod, a connecting rod is arranged in the positioning groove, one end of the connecting rod is hinged with the sliding rod, the other end of the connecting rod is provided with a side plate, the side plate is provided with a movable groove, the movable groove is aligned with the connecting rod, and the side plate is hinged with the connecting rod;

the two sides of the sliding rod are respectively provided with one side plate, the two side plates and the sliding rod are matched to form a complete cylinder, and the diameter of the formed cylinder is the same as that of the bearing rod;

a second telescopic rod is arranged between the two side plates, two ends of the second telescopic rod are fixedly connected with the two side plates respectively, an extension spring is arranged in the second telescopic rod, and two ends of the extension spring are fixedly connected with the two side plates respectively; the loading pole is close to the fixed counterpoint groove that is equipped with of one end of clearance head, counterpoint groove with the diameter looks adaptation of second telescopic link, the second telescopic link runs through the setting groove.

2. The negative pressure lifting device with high efficiency and strong suction as claimed in claim 1, wherein: an air outlet is fixedly formed in one side of the volute, a filter plate is arranged between the air outlet of the volute and the connecting pipeline, the filter plate is fixedly connected with the connecting pipeline, and a impurity outlet is fixedly formed in one side, away from the volute, of the connecting pipeline.

3. The negative pressure lifting device with high efficiency and strong suction as claimed in claim 1, wherein: the conveying belt is driven by two belt pulleys, the two belt pulleys are respectively and rotatably arranged on a mounting plate, and the mounting plate is fixedly connected with the inner wall of the lifting pipeline; the obstacle clearance box with be equipped with the closing plate between the lifting duct, the closing plate with lifting duct fixed connection, one of them the band pulley runs through the closing plate and with the closing plate rotates to be connected, the closing plate is kept away from lifting duct's one side is fixed to be equipped with driving motor, driving motor's output shaft with run through one of closing plate band pulley fixed connection.

4. A negative pressure lifting device with high efficiency and strong suction as claimed in claim 3, wherein: a flaring pipeline is arranged between the lifting pipeline and the ground-attached frame, and two ends of the flaring pipeline are fixedly connected with the lifting pipeline and the ground-attached frame respectively; the floor attaching frame is open at one end far away from the lifting pipeline, two sides of the floor attaching frame are respectively provided with a placement box, the placement boxes are fixedly provided with fixing columns, and one ends of the fixing columns far away from the placement boxes are fixedly arranged on the floor attaching frame; an adjusting mechanism is arranged in the placement box.

5. The negative pressure lifting device with high efficiency and strong suction as claimed in claim 4, wherein: the adjusting mechanism comprises a fixing frame, wherein the fixing frame is fixedly connected with the inner wall of the placement box, a positioning rod is arranged on one side of the fixing frame and hinged with the fixing frame, a lifting cylinder is arranged on one side of the fixing frame, a cylinder barrel of the lifting cylinder is hinged with the positioning rod, and a piston rod of the lifting cylinder is hinged with the fixing frame; the locating rod is far away from one end of the fixing frame and is detachably provided with a movable frame, a rotating shaft is arranged on the movable frame in a rotating mode, and a rear sweeping roller is arranged on the rotating shaft in a rotating mode.

6. The negative pressure lifting device with high efficiency and strong suction as claimed in claim 5, wherein: the positioning rod is hinged with the movable frame, a spring frame is fixedly arranged on the positioning rod, a first telescopic rod is arranged on one side of the spring frame, the spring frame is hinged with the first telescopic rod, one end, away from the spring frame, of the first telescopic rod is hinged with the movable frame, and a control spring is arranged on the periphery of the first telescopic rod; the movable frame penetrates through the joint of the placement box and the ground pasting frame, a movable motor is arranged on the side wall of the ground pasting frame in a sliding mode, and an output shaft of the movable motor is in transmission connection with the rotating shaft.