阅读说明：本技术 一种扫路车吸盘气控装置 (Pneumatic control device for sucking disc of sweeping machine ) 是由 晏争 王蓓 于 2021-09-22 设计创作，主要内容包括：本发明涉及一种扫路车吸盘气控装置,包括：提升机构、防落机构和挡板翻转机构。本发明提供的扫路车吸盘气控装置,通过三种气缸完成吸盘体的机构运动,相比于液压系统降低了成本,也避免了渗油污染,防落机构解决了因气压降低造成的吸盘自行下落问题,挡板翻转装置能保证吸盘能抽吸树叶等轻质垃圾和大块垃圾。(The invention relates to a pneumatic control device for a sucking disc of a sweeping machine, which comprises: lifting mechanism, prevent falling mechanism and baffle tilting mechanism. According to the pneumatic control device for the sucking disc of the sweeping machine, provided by the invention, the mechanical movement of the sucking disc body is completed through the three cylinders, the cost is reduced compared with a hydraulic system, the oil leakage pollution is avoided, the falling prevention mechanism solves the problem that the sucking disc falls down automatically due to the reduction of air pressure, and the baffle plate turnover device can ensure that the sucking disc can suck light garbage and large garbage such as leaves.)

1. The utility model provides a sweeping machine sucking disc air control device which characterized in that includes: the lifting mechanism, the anti-falling mechanism and the baffle turnover mechanism; the lifting mechanism comprises a lifting cylinder; the cylinder barrel of the lifting cylinder is arranged on a frame of the sweeping machine, and a piston rod is connected with a sucker of the sweeping machine; the lifting cylinder can drive the sucker to move between a standby position and a working position; the working position is a position where the sucker falls to the ground and can work; the standby position is above the working position; the anti-falling mechanism comprises a connecting rod bracket, a connecting rod, a locking cylinder, a locking hook and a locking pipe; one end of the connecting rod bracket is fixedly connected with a frame of the sweeping machine, and the other end of the connecting rod bracket is hinged with one end of the connecting rod; the other end of the connecting rod is hinged with the sucker; a cylinder barrel of the locking cylinder is connected with the connecting rod bracket, a piston rod is connected with the middle part of the locking hook, one end of the locking hook is hinged on the connecting rod bracket, and the other end of the locking hook is provided with a hook head capable of hooking the locking pipe; the locking pipe is fixed in the middle of the connecting rod; when the sucker is in a standby position, the locking cylinder can drive the locking hook to move between positions for hooking the locking pipe and releasing the locking pipe; the baffle turnover mechanism comprises a turnover support lug and a turnover cylinder; one end of the overturning lug is hinged with the sucking disc, the other end of the overturning lug is hinged with a piston rod of the overturning cylinder, and a cylinder barrel of the overturning cylinder is installed on the sucking disc; the other end of the overturning lug is also connected with the rubber plate of the sucking disc; the overturning air cylinder can drive the rubber plate to move between a position for closing the edge of the sucking disc and a position for releasing the edge of the sucking disc.

2. The sweeper truck suction cup air control device of claim 1, characterized in that: the lifting mechanism further comprises a lifting cylinder bracket; the lifting cylinder is connected with the frame of the sweeping machine through the lifting cylinder support.

3. The sweeper truck suction cup air control device of claim 1, characterized in that: a rear stop block is arranged on the frame of the sweeping machine; the sucking disc is provided with a rear limiting block; when the sucker is positioned at the standby position, the rear limiting block is contacted with the rear stop block.

4. The sweeper truck suction cup air control device of claim 1, characterized in that: the frame of the sweeping machine is provided with a front limiting block; a connecting rod stop block is fixed on the connecting rod; when the sucker is positioned at the standby position, the front limiting block contacts the connecting rod stop block.

5. The sweeper truck suction cup air control device of claim 1, characterized in that: and a piston rod of the lifting cylinder is connected with the sucker through a U-shaped buckle.

Technical Field

The invention relates to a suction disc pneumatic control device of a road sweeper, belonging to the technical field of special vehicles.

Background

The sucking disc is the main part of sweeping machine, and its effect is that the rubbish that draws in with the brush is gathered up to the fan is in the dustbin to rubbish suction, and the sucking disc falls to ground when cleaning work, and the end work needs to promote. Aiming at the garbage with large surface area and light weight such as fallen leaves, the rubber plate at the front end of the sucking disc can prevent the garbage from entering the sucking disc, so the opening degree of the suction port needs to be adjusted, and the rubber plate at the front end is turned over to enable the garbage to smoothly enter. Most adopt hydraulic cylinder to promote the operation of sucking disc and upset rubber slab for present sweeping machine, the advantage that adopts the pneumatic cylinder is that the lifting force is big, and the action is corresponding fast, and the shortcoming is with high costs, in order to prevent the automatic whereabouts after the sucking disc promotes, hydraulic system generally need install hydraulic pressure lock or balanced valve, and hydraulic line has the puzzlement of oil leak moreover. Some sweeping machines adopt a method that a suction cup body is lifted by a cylinder, the suction cup can keep a stable state in a short time after the suction cup is lifted, but after a period of time, air is not supplied after the automobile chassis stops, air in an air path electromagnetic valve slowly leaks, and the suction cup body can slowly fall back to the ground under the action of gravity. The rolling brush in the sucker is disadvantageous to the maintenance of the rolling brush after being contacted with the ground for a long time in a non-working state, and the self-falling sucker also influences the product image in occasions needing to be parked for exhibition for a long time.

Disclosure of Invention

The invention aims to solve the technical problems that: the disadvantages of the above techniques are overcome. The suction disc air control device of the sweeping machine is capable of preventing locking after lifting and overcoming the defects of a hydraulic device and a common air control lifting device.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a road sweeper sucking disc air control device includes: the lifting mechanism, the anti-falling mechanism and the baffle turnover mechanism; the lifting mechanism comprises a lifting cylinder; the cylinder barrel of the lifting cylinder is arranged on a frame of the sweeping machine, and a piston rod is connected with a sucker of the sweeping machine; the lifting cylinder can drive the sucker to move between a standby position and a working position; the working position is a position where the sucker falls to the ground and can work; the standby position is above the working position; the anti-falling mechanism comprises a connecting rod bracket, a connecting rod, a locking cylinder, a locking hook and a locking pipe; one end of the connecting rod bracket is fixedly connected with a frame of the sweeping machine, and the other end of the connecting rod bracket is hinged with one end of the connecting rod; the other end of the connecting rod is hinged with the sucker; a cylinder barrel of the locking cylinder is connected with the connecting rod bracket, a piston rod is connected with the middle part of the locking hook, one end of the locking hook is hinged on the connecting rod bracket, and the other end of the locking hook is provided with a hook head capable of hooking the locking pipe; the locking pipe is fixed in the middle of the connecting rod; when the sucker is in a standby position, the locking cylinder can drive the locking hook to move between positions for hooking the locking pipe and releasing the locking pipe; the baffle turnover mechanism comprises a turnover support lug and a turnover cylinder; one end of the overturning lug is hinged with the sucking disc, the other end of the overturning lug is hinged with a piston rod of the overturning cylinder, and a cylinder barrel of the overturning cylinder is installed on the sucking disc; the other end of the overturning lug is also connected with the rubber plate of the sucking disc; the overturning air cylinder can drive the rubber plate to move between a position for closing the edge of the sucking disc and a position for releasing the edge of the sucking disc.

The scheme is further improved in that: the lifting mechanism further comprises a lifting cylinder bracket; the lifting cylinder is connected with the frame of the sweeping machine through the lifting cylinder support.

The scheme is further improved in that: a rear stop block is arranged on the frame of the sweeping machine; the sucking disc is provided with a rear limiting block; when the sucker is positioned at the standby position, the rear limiting block is contacted with the rear stop block.

The scheme is further improved in that: the frame of the sweeping machine is provided with a front limiting block; a connecting rod stop block is fixed on the connecting rod; when the sucker is positioned at the standby position, the front limiting block contacts the connecting rod stop block.

The scheme is further improved in that: and a piston rod of the lifting cylinder is connected with the sucker through a U-shaped buckle.

According to the pneumatic control device for the sucking disc of the sweeping machine, provided by the invention, the mechanical movement of the sucking disc body is completed through the three cylinders, the cost is reduced compared with a hydraulic system, the oil leakage pollution is avoided, the falling prevention mechanism solves the problem that the sucking disc falls down automatically due to the reduction of air pressure, and the baffle plate turnover device can ensure that the sucking disc can suck light garbage and large garbage such as leaves.

Drawings

The invention will be further explained with reference to the drawings.

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a schematic structural view of a suction cup in a locking state after lifting according to a preferred embodiment of the invention.

Fig. 3 is a schematic structural view of a baffle in a reversed state according to a preferred embodiment of the invention.

Detailed Description

Examples

The sweeper truck sucker pneumatic control device of the embodiment is applied to a sweeper truck with an air source on a chassis, and the sweeper truck is provided with the sucker 1 positioned at the rear part of a rear axle.

The sweeping machine sucking disc air control device of this embodiment, as shown in fig. 1, includes: the lifting mechanism, the anti-falling mechanism and the baffle turnover mechanism; the lifting mechanism comprises a lifting cylinder bracket 2 and a lifting cylinder 3; the lifting cylinder bracket 2 is fixed on a chassis frame of the sweeping machine; the cylinder of the lifting cylinder 3 is hinged on the lifting cylinder support 2, and the piston rod of the lifting cylinder 3 is connected with the sucking disc 1 of the sweeping machine through the U-shaped buckle 4.

The anti-falling mechanism comprises a connecting rod bracket 5, a connecting rod 8, a locking cylinder 6, a locking hook 7 and a locking pipe 9; one end of the connecting rod bracket 5 is fixedly connected with a chassis frame of the sweeping vehicle, and the other end of the connecting rod bracket is hinged with one end of a connecting rod 8; the other end of the connecting rod 8 is hinged with the sucker 1. A cylinder barrel of the locking cylinder 6 is hinged on the connecting rod bracket 5, a piston rod of the locking cylinder 6 is connected with the middle part of the locking hook 7, one end of the locking hook 7 is hinged on the connecting rod bracket 5, and the other end of the locking hook 7 is provided with a hook head capable of hooking the locking pipe 9; the locking pipe 9 is welded and fixed in the middle of the connecting rod 8.

The lifting cylinder 3 can drive the sucker 1 to move between a standby position and a working position; the working position is a position where the sucker falls to the ground and can work, as shown in fig. 1; the standby position is above the working position, as shown in fig. 2. When the suction cup 1 is in the standby position, the locking cylinder 6 can drive the locking hook 7 to move between the positions of hooking the locking pipe 9 and releasing the locking pipe 9.

The chassis frame of the sweeping machine is provided with a rear stop block 19; the sucking disc 1 is provided with a rear limiting block 18; when the suction cup 1 is in the standby position, the rear stopper 18 contacts the rear stopper 19. The chassis frame of the sweeping machine is provided with a front limit block 17; a connecting rod stop block 10 is fixed on the connecting rod 8; when the suction cup 1 is at the standby position, the front limit block 17 contacts the link stopper 10.

When the piston rod of the lifting cylinder 3 extends or retracts, the connecting rod 8 and the lifting cylinder 3 together drive the sucker 1 to complete the falling or lifting action. When the suction cup 1 is lifted to the right position, the connecting rod stop block 10 is contacted with the front stop block 17 positioned on the suction cup 1, and meanwhile, the rear stop block 18 is contacted with the rear stop block 19 positioned on the side edge of the frame, so that the upper plane of the suction cup 1 is ensured to be parallel to the ground.

After sucking disc 1 promoted to target in place, 6 piston rods of locking cylinder stretch out, promote locking hook 7 and rotate and make locking hook 7 hook locking pipe 9, like this, even promote cylinder 3 and leak because of the gas circuit and make sucking disc 1 have the trend of whereabouts by oneself, nevertheless pressing the locking hook always because of locking pipe 9, connecting rod 8 will remain motionless, and sucking disc 1 can not fall. When the sucking disc 1 falls, firstly, the piston rod of the locking cylinder 6 retracts to drive the locking hook 7 to be separated from the locking pipe 9, then the piston rod of the lifting cylinder 3 extends out, and the sucking disc 1 can fall normally. The locking pipe 9 material adopts the pipe, helps reducing the frictional force between locking hook 7 and the locking pipe 9, makes the sucking disc 1 promote before locking hook 7 can break away from locking pipe 9 smoothly.

As shown in fig. 3, the baffle turnover device comprises a turnover plate 11, a turnover support lug 13, a cylinder support lug 12 and a turnover cylinder 14, wherein the turnover plate 11 is positioned at the front end of a sucker 1, the lower part of the turnover plate 11 is connected with a rubber plate 15 by a bolt, one end of the turnover support lug 13 is welded on the upper part of the turnover plate 11, the other end of the turnover support lug is hinged on the front part of the sucker 1, one end of the cylinder support lug 12 is welded on the front part of the turnover plate 11, the other end of the cylinder support lug is hinged with a piston rod of the turnover cylinder 14, and a cylinder barrel of the turnover cylinder 14 is hinged on the sucker 1. When normally cleaning, the piston rod of upset cylinder 14 is released, and 15 lower extremes of rubber slab and ground distance are minimum, and the joint strip 16 contact of rubber slab 15 and 1 front end of sucking disc, and 1 inside has certain vacuum when guaranteeing the suction, when meetting light rubbish such as fallen leaves or the great rubbish of volume, the piston rod withdrawal of upset cylinder 14, the upset of rubber slab 15 makes the sunction inlet increase of 1 front end of sucking disc, and light rubbish or bold rubbish can get into sucking disc 1 smoothly.

When the suction cup 1 is lifted, no matter what position the rubber plate 15 is, the overturning cylinder 14 automatically pushes out the rubber plate 15 to return to the initial position for normal cleaning, so that the baffle overturning device is prevented from interfering with the connecting rod 8 and the connecting rod bracket 5.

The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. All technical solutions formed by equivalent substitutions fall within the scope of the claims of the present invention.