阅读说明：本技术 一种驻车气缸 (Parking cylinder ) 是由 林兴湖 于 2020-07-11 设计创作，主要内容包括：一种驻车气缸,包括缸体,所述缸体的左右两端设有前盖和后盖,所述缸体内设有活塞杆,所述前盖上设有出油口,出油口与回油口之间通过油管进行连通,所述进油口连接外界的储油罐,所述后盖内设有回流通道、注流道和主流道,所述回流通道的两端分别连通所述进油口和回油口,所述主流道一端连通回流通道,所述主流道和注流道之间设有至少两条分流道,分流道的两端分别连通主流道和注流道,所述注流道一端和缸体的内腔连通,所述主流道和回流通道、主流道和分流道之间的三岔口处各设有一个电磁阀。本发明方便倒三轮车辆停放时通过电控进行驻车,并且每个电磁阀在制动时消耗的功率较低,线圈不容易烧坏,寿命使用寿命长。(The utility model provides a parking cylinder, includes the cylinder body, both ends are equipped with protecgulum and hou gai about the cylinder body, be equipped with the piston rod in the cylinder body, be equipped with the oil-out on the protecgulum, communicate through oil pipe between oil-out and the oil return opening, external oil storage tank is connected to the oil inlet, be equipped with backward flow passageway, notes runner and sprue in the back lid, the both ends of backward flow passageway communicate respectively oil inlet and oil return opening, sprue one end intercommunication backward flow passageway, be equipped with two at least subchannels between sprue and the notes runner, the both ends of subchannel communicate respectively sprue and annotate the runner, annotate the inner chamber intercommunication of runner one end and cylinder body, three fork departments between sprue and backward flow passageway, sprue and the subchannel respectively are equipped with an electromagnetic valve. The invention is convenient for parking the reverse tricycle by electric control when parking, and each electromagnetic valve consumes lower power when braking, the coil is not easy to burn out, and the service life is long.)

1. The utility model provides a parking cylinder, includes cylinder body (1), both ends are equipped with protecgulum (2) and hou gai (3) about cylinder body (1), be equipped with piston rod (4) in cylinder body (1), piston rod (4) one end and cylinder body (1) inner wall sealing sliding connection, protecgulum (2) are stretched out to the piston rod (4) other end, be equipped with oil inlet (31) and oil return opening (32) of intercommunication each other on hou gai (3), be equipped with oil-out (21) on protecgulum (2), communicate through oil pipe (5) between oil-out (21) and oil return opening (32), external oil storage tank, characterized by are connected to oil inlet (31): a backflow channel (33), an injection flow channel (35) and a main flow channel (34) are arranged in the rear cover (3), two ends of the backflow channel (33) are respectively communicated with the oil inlet (31) and the oil return port (32), one end of the main flow channel (34) is communicated with the backflow channel (33), at least two communicated branch channels (37) are arranged between the main flow channel (34) and the injection flow channel (35), one end of the injection flow channel (35) is communicated with an inner cavity of the cylinder body (1), three fork positions among the main flow channel (34), the backflow channel (33), the main flow channel (34) and the branch channels (37) are respectively provided with an electromagnetic valve (6), each electromagnetic valve (6) comprises a pilot head (61) and a coil component (62) outside the pilot head (61), a movable magnet (63) is arranged in the pilot head (61), and a valve rod (64) is connected to the magnet (63), the novel valve is characterized in that a valve plug head (66) is arranged on the valve rod (64), an oil way sealing ring (665) is arranged on the end face of the valve plug head (66), a sealing plane (341) is milled at one end of the main flow channel (34) and one end of the sub flow channel (37), the sealing plane (341) is matched with the end face of the oil way sealing ring (665) to seal, a valve plug head telescopic hole (611) is formed in one end of the pilot head (61), a guide pillar (661) is arranged at one end of the valve plug head (66), the guide pillar (661) is matched and slidably mounted in the valve plug head telescopic hole (611), a guide hole (662) is formed in the center of the other end of the valve plug head (66), the lower end of the guide hole (662) is communicated with the end face of the guide pillar (661) through an inclined hole (663), and a reset spring (65.

2. A parking cylinder as claimed in claim 1, wherein: and a plug (36) is arranged at the other end of the main flow channel (34).

3. A parking cylinder as claimed in claim 1, wherein: the diameter of the oil way sealing ring (665) is larger than the diameter of the main flow channel (34) and the diameter of the branch flow channel (37).

4. A parking cylinder as claimed in claim 1, wherein: and a spring mounting clamping table (664) is arranged on the side wall of the valve plug head (66).

5. A parking cylinder as claimed in claim 1, wherein: and a valve rod sealing ring (666) is arranged between the guide post (661) and the valve plug telescopic hole (611).

6. A parking cylinder as claimed in claim 1, wherein: the side surface of the rear cover (3) is provided with a standby hole (39) communicated with the injection flow channel (35), and a side plug screw is arranged on the standby hole (39).

7. A parking cylinder as claimed in claim 1, wherein: the backflow channel (33) penetrates through the rear cover (3) from front to back, the injection channel (35) and the main channel (34) are arranged in parallel, and the electromagnetic valve (6) is located on the axis direction of the main channel (34) or the sub-channel (37).

8. A parking cylinder as claimed in claim 1, wherein: and the rear cover (3) is provided with a mounting hole (38).

9. A parking cylinder as claimed in claim 1, wherein: and the injection channel (35) and the front cover (2) are respectively provided with a first threaded connecting hole (351) and a second threaded connecting hole (23) which are used for connecting the end part of the cylinder body (1).

Technical Field

The invention relates to the field of oil cylinder equipment, in particular to a parking air cylinder.

Background

The motor tricycle is common in life, is used for carrying people and goods, is excited flexibly, and the inverted motor tricycle refers to a motor tricycle with two front wheels arranged side by side at the front end of a frame and a rear wheel at the rear end, a direction shaft adjusts the direction by controlling the steering of the two front wheels, and in the process of steering during the running of the motor tricycle, two rocker arms are usually arranged on the two front wheels of the inverted motor tricycle in order to avoid that the front wheels at the other side are lifted and separated from the ground when the motor tricycle inclines to one side. When the reverse motor tricycle among the prior art parks, one kind is that the user opens the manual brake switch, and the manual brake switch passes through manual brake line and control piece control hand brake pump locking manual brake piece for rocking arm and headstock are unable to be rotated relatively, thereby have guaranteed that the automobile body of reverse motor tricycle can not take place the condition that the slope fell when parking, guarantee the stability of frame. The parking mode is troublesome, manual pulling of a hand brake cable is needed for parking braking, the degree of automation is low, automatic locking of the movement of the frame cannot be achieved when the frame is too inclined due to low-speed running or large-amplitude turning, and the safety is poor. The other is that a hydraulic damping telescopic oil cylinder is arranged between the vehicle frame and the rocker arm, oil ports at two ends of the cylinder body are connected to the same oil storage tank through oil pipes to form a hydraulic loop, then an electromagnetic valve is arranged on the oil pipes, the electromagnetic valve is electrified when the vehicle is parked, an oil cavity of the oil cylinder is closed, the piston rod stops moving, the positions of the vehicle frame and the rocker arm are fixed, and the balance of the vehicle body is kept.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a parking cylinder which is convenient for parking a vehicle through electric control when the vehicle is parked, and each electromagnetic valve is low in power consumption during braking, the coil is low in heating, the coil is not easy to burn out after long-time work, and the service life is long.

The invention adopts the technical scheme for solving the technical problems that: the parking cylinder comprises a cylinder body, wherein a front cover and a rear cover are arranged at the left end and the right end of the cylinder body, a piston rod is arranged in the cylinder body, one end of the piston rod is connected with the inner wall of the cylinder body in a sealing and sliding mode, the other end of the piston rod stretches out of the front cover, an oil inlet and an oil return port which are mutually communicated are arranged on the rear cover, an oil outlet is arranged on the front cover, the oil outlet is communicated with the oil return port through an oil pipe, and the oil inlet is connected with an external oil storage: a backflow channel, an injection flow channel and a main flow channel are arranged in the rear cover, two ends of the backflow channel are respectively communicated with the oil inlet and the oil return port, one end of the main flow channel is communicated with the backflow channel, at least two communicated sub-flow channels are arranged between the main flow channel and the injection flow channel, one end of the injection flow channel is communicated with an inner cavity of the cylinder body, three fork openings between the main flow channel and the backflow channel as well as between the main flow channel and the sub-flow channels are respectively provided with an electromagnetic valve, each electromagnetic valve comprises a pilot head and a coil assembly outside the pilot head, a movable magnet is arranged in the pilot head, a valve rod is connected onto the magnet, a valve plug head is arranged on the valve rod, an oil way sealing ring is arranged on the end face of the valve plug head, a sealing plane is milled at one end of the main flow channel and one end of the sub-flow channel, the sealing plane, the valve plug is characterized in that a guide pillar is arranged at one end of the valve plug head, the guide pillar is matched with and slidably mounted in a telescopic hole of the valve plug head, a guide hole is formed in the center of the other end of the valve plug head, the lower end of the guide hole is communicated with the end face of the guide pillar through an inclined hole, and a reset spring is arranged between the valve plug head and a closed hole channel of the valve plug head.

According to the technical scheme, when the inverted motor tricycle is parked, a user presses the parking button switch, the parking button switch controls the coil assembly on the electromagnetic valve to be electrified through an electric wire, the coil assembly drives the magnet in the pilot head to move in a magnetic mode, the magnet pushes the valve plug to block the main flow channel and the two branch flow channels through the valve rod, the oil cavity at one end of the cylinder body is sealed, the piston rod is in a static state, the front wheel rocker arm and the head tube cannot rotate relatively, the situation that the motorcycle body of the inverted motor tricycle is inclined and falls down when parked is guaranteed, and the stability of the motorcycle frame is guaranteed; when the reverse motor tricycle runs, the coil assembly is powered off, the main runner and the two sub-runners are communicated, oil cavities at two ends of the cylinder body are communicated with each other through the oil pipe, the parking cylinder is equivalent to a hydraulic damper, the piston rod can stretch up and down, the damping and buffering effects are achieved when the vehicle turns or runs on a bumpy road surface, the flow of an oil way is large due to the arrangement of the two sub-runners, the vehicle turns more smoothly, and the steering feeling is better. The guide pillar slides on can valve plug flexible hole, makes the motion of valve plug more steady, and the terminal surface under the guide pillar can flow through the guide hole to the oil of valve plug upper end, forms the backpressure, makes oil circuit sealing washer and sealed planar sealed effect better, and piston rod parking ability is strong, and reset spring is located between the closed pore canal of valve plug head and valve plug head, and after the coil pack outage, the valve plug resets easily, is difficult to block up the auto-lock.

For further improvement, the other end of the main flow passage is provided with a plug.

Further perfection, the diameter of the oil way sealing ring is larger than the diameter of the main runner and the diameter of the branch runners.

Further perfection, be equipped with spring mounting card platform on the valve plug head lateral wall.

Further perfect, be equipped with valve rod sealing washer between guide pillar and the valve plug telescopic hole, sealed effectual.

Further perfection, the side surface of the rear cover is provided with a spare hole communicated with the injection flow channel, and a side plug screw is arranged on the spare hole.

Further perfect, the back lid is link up around the backward flow passageway, annotate runner and sprue parallel arrangement each other, three the solenoid valve is located the axis direction of sprue or subchannel, and the solenoid valve is difficult to receive the impact damage.

Further perfection, be equipped with the mounting hole on the back lid, make things convenient for the cylinder installation.

Further perfecting, be equipped with first threaded connection hole and second threaded connection hole that is used for connecting the cylinder body tip on annotating the runner and the protecgulum respectively.

The invention has the beneficial effects that: 1. according to the invention, the oil cavity at one end of the parking oil cylinder is sealed by the electromagnetic valve, so that the piston rod is in a static state, and the aim that the rocker arm and the head pipe cannot rotate relatively is fulfilled, thus the balance of the body of the inverted motor tricycle during parking is ensured, and no side turning occurs; 2. the invention has compact structure, can not only play the roles of shock absorption and buffering when the vehicle runs, but also play the role of parking braking when the vehicle is parked, and the hand brake pump is not needed to be arranged on the front suspension of the vehicle, thus the volume is smaller and the weight is lighter; 3. the three electromagnetic valves are arranged on the rear cover of the parking oil cylinder and respectively block the main runner and the two branch runners on the main runner, so that the parking oil cylinder has a double sealing effect, is not easy to leak, has a stronger locking effect on a piston rod, is low in pressure distributed by the three electromagnetic valves, has lower power required by the electromagnetic valves, is not easy to heat a coil, is not easy to burn out after long-time work, and has longer service life; 4. an oil cavity at one end of the parking oil cylinder body is communicated with an injection flow channel, the injection flow channel is connected with a main flow channel through two branch flow channels, the flow of the oil channel is larger, the piston rod stretches more smoothly, and the vehicle turns without effort; 5. oil on the upper end of the valve plug head of the electromagnetic valve rod can flow to the lower end face of the guide pillar through the guide hole to form back pressure, so that the sealing effect of an oil way sealing ring and a sealing plane is better, the parking capacity of the piston rod is strong, the reset spring is positioned between the closed hole passages of the valve plug head and the valve plug head, and after the power of the coil assembly is cut off, the valve plug head is easy to reset and is not easy to block for self locking.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the solenoid valve of the present invention;

FIG. 3 is a schematic view of the rear cover structure of the present invention;

FIG. 4 is a schematic illustration of a valve stem and plug head configuration of the present invention;

FIG. 5 is a schematic view of the front cover structure of the present invention;

FIG. 6 is a schematic illustration of a closed plug configuration according to the present invention;

description of reference numerals: 1. the oil cylinder comprises a cylinder body, 2, a front cover, 21, an oil outlet, 22, a mounting groove, 23, a second threaded connecting hole, 3, a rear cover, 31, an oil inlet, 32, an oil return port, 33, a return channel, 34, a main flow passage, 341, a sealing plane, 35, an injection flow passage, 351, a first threaded connecting hole, 36, a plug, 37, a branch flow passage, 38, a mounting hole, 39, a spare hole, 4, a piston rod, 5, an oil pipe, 6, an electromagnetic valve, 61, a pilot head, 611, a plug head telescopic hole, 62, a coil assembly, 63, a magnet, 64, a valve rod, 65, a return spring, 66, a plug head 661, a guide column, 662, a guide hole, 663, an inclined hole, 664, a spring mounting clamping table, 665, an oil way sealing ring, 666, a valve rod sealing ring, 667 and a sealing.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

with reference to the accompanying drawings: the parking cylinder comprises a cylinder body 1, a front cover 2 and a rear cover 3 are arranged at the left end and the right end of the cylinder body 1, a piston rod 4 is arranged in the cylinder body 1, one end of the piston rod 4 is connected with the inner wall of the cylinder body 1 in a sealing and sliding manner, the other end of the piston rod 4 extends out of the front cover 2, an oil inlet 31 and an oil return port 32 which are mutually communicated are arranged on the rear cover 3, an oil outlet 21 is arranged on the front cover 2, the oil outlet 21 is communicated with the oil return port 32 through an oil pipe 5, the oil inlet 31 is connected with an external oil storage tank, a backflow channel 33, an injection channel 35 and a main channel 34 are arranged in the rear cover 3, two ends of the backflow channel 33 are respectively communicated with the oil inlet 31 and the oil return port 32, one end of the main channel 34 is communicated with the backflow channel 33, at least two communicated branch channels 37 are arranged between the main, the electromagnetic valves 6 are respectively arranged at the three-way intersection between the main flow passage 34 and the return flow passage 33, and between the main flow passage 34 and the branch flow passage 37, each electromagnetic valve 6 comprises a pilot head 61 and a coil assembly 62 outside the pilot head 61, a movable magnet 63 is arranged in the pilot head 61, a valve rod 64 is connected on the magnet 63, a valve plug head 66 is arranged on the valve rod 64, an oil way sealing ring 665 is arranged on the end surface of the valve plug head 66, a sealing plane 341 is milled at one end of the main flow passage 34 and one end of the branch flow passage 37, the sealing plane 341 is matched with the end surface of the oil way sealing ring 665 for sealing, a valve plug head telescopic hole 611 is arranged at one end of the pilot head 61, a guide post 661 is arranged at one end of the valve plug head 66, the guide post 661 is matched and slidably mounted in the valve plug head telescopic hole 611, a guide hole 662 is arranged at the center of the other end of the valve plug, a return spring 65 is provided between the plug head 66 and the bore closed thereby.

When the inverted motor tricycle is parked, a user presses a parking button switch, the parking button switch controls the coil assembly 62 on the electromagnetic valve 6 to be electrified through an electric wire, the coil assembly 62 drives the magnet 63 in the pilot head 61 to move in a magnetic mode, the magnet 63 pushes the valve plug head 66 through the valve rod 64 to block the main flow channel 34 and the two branch flow channels 37, an oil cavity at one end of the cylinder body 1 is sealed, the piston rod 4 is in a static state, the front wheel rocker arm and the head tube cannot rotate relatively, the situation that the body of the inverted motor tricycle is inclined and falls down when parked is guaranteed, and the stability of the frame is guaranteed; when the reverse motor tricycle runs, the coil assembly 62 is powered off, the main runner 34 is communicated with the two branch runners 37, oil cavities at two ends of the cylinder body 1 are communicated with each other through the oil pipe 5, the parking cylinder is equivalent to a hydraulic damper at the moment, the piston rod 4 can stretch up and down, the effects of shock absorption and buffering are achieved when the vehicle turns round or runs on a bumpy road surface, the flow of an oil way is large due to the arrangement of the two branch runners 37, the vehicle turns round more smoothly, and the operation feeling is better. Guide pillar 661 slides on valve plug head telescopic hole 611, it is more steady to make valve plug head 66 move, the oil of valve plug head 66 upper end can flow to guide pillar 661 lower terminal surface through guide hole 662, form the backpressure, make oil circuit sealing circle 665 and sealing plane 341's sealed effect better, 4 parking of piston rod ability reinforce, reset spring 65 is located between the pore canal that valve plug head 66 and valve plug head 66 closed, behind the coil pack 62 outage, valve plug head 66 resets easily, is difficult to block up the auto-lock.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.