CN211202463U - Sweeper hydraulic system and sweeper - Google Patents
Sweeper hydraulic system and sweeper Download PDFInfo
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- CN211202463U CN211202463U CN201922045549.3U CN201922045549U CN211202463U CN 211202463 U CN211202463 U CN 211202463U CN 201922045549 U CN201922045549 U CN 201922045549U CN 211202463 U CN211202463 U CN 211202463U
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- sweeper
- valve
- lifting
- oil
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Abstract
The utility model discloses a motor sweeper hydraulic system and motor sweeper. The motor sweeper hydraulic system includes: brushing a lifting oil cylinder; the cartridge valve group comprises a pressure reducing valve and an overload valve, an oil outlet of the pressure reducing valve and an oil inlet of the overload valve are connected with a rodless cavity of the wiper lifting oil cylinder, and an oil outlet of the overload valve is connected with an oil tank; the first lifting interface, the second lifting interface and the third lifting interface of the sweeper lifting electromagnetic valve are sequentially connected with an oil tank, a rodless cavity of the sweeper lifting oil cylinder and an oil inlet of the pressure reducing valve, and the sweeper lifting electromagnetic valve enables the first lifting interface to be communicated with one of the second lifting interface and the third lifting interface through the change of the power-on state. Through the setting of relief pressure valve and overload valve, can realize the pressurize control to wiper lift cylinder medium pressure oil, clean the in-process, the height of wiper mechanism can be according to ground undulation condition adaptability ground automatically regulated, can guarantee to clean the in-process, wiper mechanism and ground contact force and relative altitude relation are unchangeable basically.
Description
Technical Field
The utility model relates to a clean equipment technical field, in particular to motor sweeper hydraulic system and motor sweeper.
Background
In the process of sweeping operation of the existing typical small-sized sweeper, the height of a sweeping mechanism is determined and cannot be automatically adjusted according to the fluctuation of terrain, so that the contact force between the sweeping mechanism and the ground is too large when the ground is suddenly raised, the abnormal abrasion of the sweeping mechanism is caused, and when the sweeping mechanism passes through the ground with pits, the sweeping mechanism cannot rapidly descend, and the missing sweeping is caused.
Therefore, how to make the height of the sweeping mechanism automatically adjustable in the sweeping process is a technical problem which needs to be solved by the technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a motor sweeper hydraulic system can realize the automatically regulated of brush-sweeping machine mechanism height in the cleaning process. Another object of the utility model is to provide a motor sweeper including above-mentioned motor sweeper hydraulic system, but its brush mechanism height is automatic adjustment in the cleaning process.
In order to achieve the above object, the utility model provides a following technical scheme:
a hydraulic system of a sweeper comprises a sweeper lift cylinder; further comprising:
the cartridge valve group comprises a pressure reducing valve and an overload valve, an oil outlet of the pressure reducing valve and an oil inlet of the overload valve are connected with a rodless cavity of the sweeping and lifting oil cylinder, and an oil outlet of the overload valve is connected with an oil tank;
the oil tank, the rodless cavity of the sweeper lifting oil cylinder and the oil inlet of the pressure reducing valve are sequentially connected through a lifting first interface, a lifting second interface and a lifting third interface of the sweeper lifting electromagnetic valve, and the sweeper lifting electromagnetic valve enables the lifting first interface to be communicated with one of the lifting second interface and the lifting third interface through the change of the power-on state.
Preferably, the cartridge valve group further comprises a pressure reducing electromagnetic stop valve, a first pressure reducing interface of the pressure reducing electromagnetic stop valve is connected with an oil outlet of the pressure reducing valve and an oil inlet of the overload valve, and a second pressure reducing interface of the pressure reducing electromagnetic stop valve is connected with a rodless cavity of the sweeping and lifting oil cylinder.
Preferably, the cartridge valve group further comprises an oil return electromagnetic stop valve, an oil inlet of the oil return electromagnetic stop valve is connected with the rodless cavity of the wiper lifting cylinder, and an oil outlet of the oil return electromagnetic stop valve is connected with the oil tank.
Preferably, the pressure reducing valve is a pilot pressure reducing valve.
Preferably, the overload valve is a pilot overload valve.
Preferably, the sweeper further comprises a sweeper motor and a sweeper adjusting oil cylinder which are connected to the same hydraulic source, and a throttle valve is connected to an oil return pipe of the sweeper motor.
Preferably, the throttle valve is an electromagnetic throttle valve.
A sweeper comprises a sweeping mechanism, a sweeper body and a hydraulic system of the sweeper, wherein the hydraulic system comprises a hydraulic motor and a hydraulic motor; the sweeping brush mechanism is hinged to the vehicle body, and two ends of the sweeping brush lifting oil cylinder are respectively hinged to the vehicle body and the sweeping brush mechanism.
The utility model provides a motor sweeper hydraulic system, include: brushing a lifting oil cylinder; the cartridge valve group comprises a pressure reducing valve and an overload valve, an oil outlet of the pressure reducing valve and an oil inlet of the overload valve are connected with a rodless cavity of the wiper lifting oil cylinder, and an oil outlet of the overload valve is connected with an oil tank; the first lifting interface, the second lifting interface and the third lifting interface of the sweeper lifting electromagnetic valve are sequentially connected with an oil tank, a rodless cavity of the sweeper lifting oil cylinder and an oil inlet of the pressure reducing valve, and the sweeper lifting electromagnetic valve enables the first lifting interface to be communicated with one of the second lifting interface and the third lifting interface through the change of the power-on state.
Through the setting of relief pressure valve and overload valve, can realize the pressurize control to wiper lift cylinder medium pressure oil, clean the in-process, the height of wiper mechanism can be according to ground undulation condition adaptability ground automatically regulated, can guarantee to clean the in-process, wiper mechanism and ground contact force and relative altitude relation are unchangeable basically, have realized imitative topography function, reduce the unusual wearing and tearing of abrupt uplift in ground to wiper mechanism, guarantee that wiper mechanism reliably cleans abrupt pit department in ground.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of an oil circuit of a hydraulic system of a sweeper of the present invention;
FIG. 2 is a schematic diagram of an oil path of a part of a wiper lift cylinder in the hydraulic system of the middle sweeper of the utility model;
FIG. 3 is a structural diagram of the sweeper truck provided by the present invention;
fig. 4 is a top view of the sweeping vehicle provided by the present invention.
Reference numerals:
an oil tank 1;
the control system comprises a cartridge valve group 2, a pressure reducing valve 21, an overload valve 22, a pressure reducing electromagnetic stop valve 23, a pressure reducing first connector 231, a pressure reducing second connector 232 and an oil returning electromagnetic stop valve 24;
the sweeper lifting electromagnetic valve 3 is used for lifting the first interface 31, lifting the second interface 32 and lifting the third interface 33;
a sweeping and brushing lifting oil cylinder 4;
a throttle valve 5;
a sweeping mechanism 6, a sweeping motor 61, a sweeping body 62 and a brush arm 63;
an oil return pipe 7;
a sweeping and brushing adjusting oil cylinder 8;
a vehicle body 9;
a hydraulic pressure source 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a motor sweeper hydraulic system can realize the automatically regulated of brush mechanism height at the cleaning in-process. The other core of the utility model is to provide a motor sweeper including above-mentioned motor sweeper hydraulic system, but its brush mechanism height is cleaning the in-process automatically regulated.
In the description of the present invention, unless otherwise expressly specified or limited, the term "connected" is to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model provides a sweeper hydraulic system in a specific embodiment, please refer to fig. 1 and fig. 2, include: a sweeper lifting oil cylinder 4, a plug-in valve group 2 and a sweeper lifting solenoid valve 3.
The sweeper lifting oil cylinder 4 is used for controlling the height of the sweeper mechanism 6, and particularly as shown in fig. 3, in a specific sweeper, the sweeper mechanism 6 is hinged to a sweeper body 9, two ends of the sweeper lifting oil cylinder 4 are respectively hinged to the sweeper body 9 and the sweeper mechanism 6, the sweeper lifting oil cylinder 4 provides upward supporting force for the sweeper mechanism 6, the sweeper mechanism 6 can be pushed to swing relative to the sweeper body 9 through the telescopic motion of the sweeper lifting oil cylinder 4, and the height of the sweeper mechanism 6 is further changed. Alternatively, the wiper mechanism 6 is a front wiper mechanism provided at the front of the vehicle body 9.
The cartridge valve group 2 comprises a pressure reducing valve 21 and an overload valve 22. Referring to fig. 1 and 2, an oil outlet of the pressure reducing valve 21 and an oil inlet of the overload valve 22 are connected with a rodless cavity of the wiper lift cylinder 4, and an oil outlet of the overload valve 22 is connected with the oil tank 1.
A lifting first interface 31 of the sweeper lifting electromagnetic valve 3 is connected with the oil tank 1, a lifting second interface 32 is connected with a rodless cavity of the sweeper lifting oil cylinder 4, and a lifting third interface 33 is connected with an oil inlet of the pressure reducing valve 21. The sweeper lifting electromagnetic valve 3 enables the lifting first interface 31 to be communicated with one of the lifting second interface 32 and the lifting third interface 33 through the change of the electrified state.
When the vehicle runs, the sweeping mechanism 6 needs to be lifted to a preset highest state, at the moment, the controller controls the power-on state of the sweeping lifting electromagnetic valve 3 to enable the lifting first interface 31 to be communicated with the lifting second interface 32, pressure oil is introduced into a rodless cavity of the sweeping lifting oil cylinder 4 through the lifting second interface 32 of the sweeping lifting electromagnetic valve 3, a piston rod of the sweeping lifting oil cylinder 4 extends out to lift the sweeping mechanism 6 to the preset highest position, and the sweeping lifting oil cylinder 4 provides supporting force for the sweeping mechanism 6 to balance the gravity of the sweeping mechanism 6. Then, the controller controls the power-on state of the sweeper lifting electromagnetic valve 3 to enable the sweeper lifting electromagnetic valve 3 to return to the neutral position, the lifting first interface 31 and the lifting second interface 32 of the sweeper lifting electromagnetic valve 3 and the lifting first interface 31 and the lifting third interface 33 are disconnected, at the moment, the sweeper mechanism 6 is kept in the preset highest state, and the sweeper mechanism 6 is lifted off the ground and cannot be abraded by the ground.
When the sweeper mechanism 6 carries out sweeping operation, the controller controls the power-on state of the sweeper lifting electromagnetic valve 3 to enable the lifting first interface 31 to be communicated with the lifting third interface 33, at the moment, pressure oil enters the pressure reducing valve 21 after passing through the lifting third interface 33 of the sweeper lifting electromagnetic valve 3, the pressure reducing valve 21 is subjected to pressure reduction and then leads to a rodless cavity of the sweeper lifting oil cylinder 4 to provide set oil cylinder supporting force for the sweeper mechanism 6, the set oil cylinder supporting force is smaller than the gravity of the sweeper mechanism 6, at the moment, the difference between the gravity of the sweeper mechanism 6 and the set oil cylinder supporting force is the set ground supporting force of the road surface to the sweeper mechanism 6, and the sweeper lifting oil cylinder 4 has an extending and shortening space in one state between the longest state and the shortest state. During the cleaning operation, the hydraulic oil pressure of the wiper lift cylinder 4 is determined by the pressure reducing valve 21 and the overload valve 22, so that it is ensured that the supporting force provided to the wiper mechanism 6 is maintained at the set cylinder supporting force.
In the cleaning process, when the road surface is suddenly raised, the supporting force of the ground to the sweeping mechanism 6 is increased, and the sweeping mechanism 6 can rise. Specifically, when the supporting force of the ground to the sweeping mechanism 6 is increased, the supporting force of the sweeping lifting cylinder 4 to the sweeping mechanism 6 is reduced, the pressure of hydraulic oil of the sweeping lifting cylinder 4 is reduced, the hydraulic oil automatically flows into a rodless cavity of the sweeping lifting cylinder 4 through the sweeping lifting electromagnetic valve 3 and the pressure reducing valve 21, so that the pressure of the hydraulic oil of the sweeping lifting cylinder 4 is increased, the sweeping lifting cylinder 4 extends and pushes the sweeping mechanism 6 to move upwards, until the supporting force of the sweeping lifting cylinder 4 to the sweeping mechanism 6 returns to the set cylinder supporting force, and accordingly, the supporting force of the ground to the sweeping mechanism 6 is reduced back to the set ground supporting force.
In the cleaning process, when a pit suddenly exists on the road surface, the supporting force of the road surface to the sweeping mechanism 6 is reduced, and the sweeping mechanism 6 is reduced. Specifically, when the supporting force of the ground to the sweeping mechanism 6 is reduced, the supporting force of the sweeping lifting cylinder 4 to the sweeping mechanism 6 is increased, the pressure of hydraulic oil of the sweeping lifting cylinder 4 is increased, the hydraulic oil of the sweeping lifting cylinder 4 automatically flows back to the oil tank 1 through the overload valve 22, so that the pressure of the hydraulic oil of the sweeping lifting cylinder 4 is reduced, the sweeping lifting cylinder 4 is shortened and the sweeping mechanism 6 is driven to move downwards until the supporting force of the sweeping lifting cylinder 4 to the sweeping mechanism 6 is restored to the set cylinder supporting force, and accordingly, the supporting force of the ground to the sweeping mechanism 6 is increased back to the set ground supporting force.
It can be seen that through the arrangement of the pressure reducing valve 21 and the overload valve 22, the pressure maintaining control of the pressure oil in the sweeping lifting oil cylinder 4 can be realized, in the sweeping process, the height of the sweeping mechanism 6 can be adaptively and automatically adjusted according to the fluctuation condition of the ground, the contact force and the relative height relation between the sweeping mechanism 6 and the ground can be basically unchanged in the sweeping process, the terrain imitation function is realized, the abnormal abrasion of the sweeping mechanism 6 caused by the sudden rise of the ground is reduced, and the sweeping mechanism 6 is ensured to reliably sweep the sudden pit on the ground.
Further, referring to fig. 2, the cartridge valve assembly 2 further includes a pressure reducing electromagnetic stop valve 23. A first pressure reducing interface 231 of the pressure reducing electromagnetic stop valve 23 is connected with an oil outlet of the pressure reducing valve 21 and an oil inlet of the overload valve 22, and a second pressure reducing interface 232 of the pressure reducing electromagnetic stop valve 23 is connected with a rodless cavity of the sweeper lift cylinder 4. The pressure reducing electromagnetic stop valve 23 is changed by the electrified state to connect the pressure reducing valve 21 and the overload valve 22 with the sweeper lift cylinder 4 or disconnect the pressure reducing valve 21 and the overload valve 22 with the sweeper lift cylinder 4. In this embodiment, the pressure reducing valve 21 and the overload valve 22 are both connected to the wiper lift cylinder 4 through the pressure reducing electromagnetic stop valve 23, so that the use safety can be improved.
Further, referring to fig. 2, the cartridge valve group 2 further includes an oil return electromagnetic stop valve 24, an oil inlet of the oil return electromagnetic stop valve 24 is connected to the rodless cavity of the wiper lift cylinder 4, and an oil outlet of the oil return electromagnetic stop valve 24 is connected to the oil tank 1. When hydraulic oil in a rodless cavity of the sweeper lifting oil cylinder 4 needs to be discharged, the hydraulic oil can be specifically discharged through the oil return electromagnetic stop valve 24. The oil return electromagnetic stop valve 24 is used for connecting or disconnecting the sweeper lifting oil cylinder 4 and the oil tank 1 through the change of the power-on state, specifically, the controller controls the oil return electromagnetic stop valve 24 to be powered on, and the sweeper lifting oil cylinder 4 is connected with the oil tank 1 through the oil return electromagnetic stop valve 24; the controller controls the oil return electromagnetic stop valve 24 to lose power, and the oil return electromagnetic stop valve 24 is in a stop state.
Further, the pressure reducing valve 21 is a pilot pressure reducing valve, and the overload valve 22 is a pilot overload valve. Of course, in other embodiments, the pressure reducing valve 21 and the overload valve 22 may be solenoid valves.
Further, the hydraulic system of the sweeper further comprises a sweeper motor 61 and a sweeper adjustment cylinder 8 which are connected to the same hydraulic source 10. As shown in fig. 3 and 4, the sweeper mechanism 6 includes a sweeper body 62, a sweeper motor 61 connected to the sweeper body 62, and a sweeper arm 63 connected to the sweeper body 62, the sweeper motor 61 is used for driving the sweeper body 62 to rotate for sweeping, and the sweeper lift cylinder 4 is hinged between the sweeper arm 63 and the vehicle body 9. As shown in fig. 4, the sweeping adjusting cylinder 8 is connected to the sweeping mechanism 6, and the sweeping adjusting cylinder 8 is used for driving the sweeping mechanism 6 to swing horizontally through telescopic motion so as to adjust the left and right positions of the sweeping mechanism 6 at the same height. Preferably, the throttle valve 5 is an electromagnetic throttle valve.
When the sweeping mechanism 6 needs to adjust the state of the sweeping mechanism 6 by the sweeping adjusting oil cylinder 8 while the sweeping mechanism is normally working, namely when the sweeping adjusting oil cylinder 8 needs to be started when the sweeping motor 61 works, the controller controls the electromagnet of the throttle valve 5 to be electrified, the back pressure of the sweeping motor 61 is increased, so that at least part of pressure oil provided by the hydraulic source 10 flows to the sweeping adjusting oil cylinder 8 instead of all the pressure oil flows to the sweeping motor 61, and the sweeping adjusting oil cylinder 8 can also simultaneously work when the sweeping motor 61 drives the sweeping mechanism 6 to normally work, namely the sweeping motor 61 state is adjusted while sweeping operation is realized.
In the prior art, the same hydraulic source 10 is adopted for the sweeper motor 61 and the sweeper adjusting cylinder 8, and when the sweeper motor 61 works, the system pressure is not high enough, and at the moment, if the sweeper adjusting cylinder 8 is required to be opened to adjust the state of the sweeper mechanism 6, the sweeper motor 61 needs to be closed first, and the sweeper adjusting cylinder 8 can work. In the embodiment, the throttle valve is additionally arranged, the sweeping motor 61 does not need to be closed, the back pressure of the sweeping motor 61 is directly controlled, the sweeping adjusting oil cylinder 8 can be started under the working state of the sweeping motor 61, and the operability is high.
The specific working process of the hydraulic system of the sweeper provided by the embodiment is as follows:
as shown in fig. 1, when the vehicle travels, the sweeping mechanism 6 needs to be lifted to a preset highest state, the electromagnet on the left side of the sweeping lifting electromagnetic valve 3 is powered on, the rod-free cavity of the front sweeping lifting oil cylinder 4 is communicated with pressure oil, the piston rod of the sweeping lifting oil cylinder 4 extends out, the sweeping mechanism 6 is lifted to the preset highest state, then the electromagnetic valve of the sweeping lifting oil cylinder 4 is powered off and returns to a middle position, and the sweeping mechanism 6 can be kept to be stopped at the preset highest state at the moment.
When the sweeping mechanism 6 carries out sweeping operation, the electromagnet on the right side of the sweeping lifting oil cylinder 4 is electrified, the pressure reducing electromagnetic stop valve 23 is electrified, pressure oil is reduced through the pressure reducing valve 21 and then flows to the rodless cavity of the sweeping lifting oil cylinder 4, certain supporting force is provided for the sweeping mechanism 6, and the difference between the supporting force and the gravity of the sweeping mechanism 6 is the supporting force of the road surface to the sweeping mechanism 6. When the road surface is suddenly raised, the supporting force of the ground to the sweeping mechanism 6 is increased, the sweeping mechanism 6 can be adaptively raised, when the road surface is suddenly provided with a pit, the supporting force of the road surface to the sweeping mechanism 6 is reduced, the sweeping mechanism 6 can be adaptively reduced, and therefore the pressure of the sweeping mechanism 6 to the road surface can be basically kept unchanged under any condition, and the terrain imitation function is realized.
Except above-mentioned motor sweeper hydraulic system, the utility model also provides a motor sweeper, this motor sweeper include motor sweeper hydraulic system, specifically can be the motor sweeper hydraulic system that provides in the above arbitrary embodiment, and each embodiment above can corresponding reference to beneficial effect. Specifically, the sweeper further comprises a sweeping mechanism 6 and a sweeper body 9, the sweeping mechanism 6 is hinged to the sweeper body 9, and two ends of the sweeping lifting oil cylinder 4 are respectively hinged to the sweeper body 9 and the sweeping mechanism 6. For the structure of other parts of the sweeper, reference is made to the prior art, and the description is omitted here.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a motor sweeper hydraulic system and motor sweeper introduce in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. A hydraulic system of a sweeper comprises a sweeper lifting oil cylinder (4); it is characterized by also comprising:
the cartridge valve group (2) comprises a pressure reducing valve (21) and an overload valve (22), an oil outlet of the pressure reducing valve (21) and an oil inlet of the overload valve (22) are connected with a rodless cavity of the wiper lifting oil cylinder (4), and an oil outlet of the overload valve (22) is connected with an oil tank (1);
the sweeper lifting solenoid valve (3), the first interface (31) of the lifting of the sweeper lifting solenoid valve (3), the second interface (32) of the lifting and the third interface (33) of the lifting are sequentially connected with the oil tank (1), the rodless cavity of the sweeper lifting oil cylinder (4) and the oil inlet of the pressure reducing valve (21), and the sweeper lifting solenoid valve (3) is communicated with the second interface (32) of the lifting through the change of the power-on state, so that the first interface (31) of the lifting is communicated with one of the third interfaces (33) of the lifting.
2. The hydraulic system of the sweeper according to claim 1, wherein the cartridge valve group (2) further comprises a pressure reducing electromagnetic stop valve (23), a first pressure reducing interface (231) of the pressure reducing electromagnetic stop valve (23) is connected with an oil outlet of the pressure reducing valve (21) and an oil inlet of the overload valve (22), and a second pressure reducing interface (232) of the pressure reducing electromagnetic stop valve (23) is connected with a rodless cavity of the sweeper lift cylinder (4).
3. The hydraulic system of the sweeper according to claim 1, wherein the cartridge valve group (2) further comprises an oil return electromagnetic stop valve (24), an oil inlet of the oil return electromagnetic stop valve (24) is connected with the rodless cavity of the sweeper lift cylinder (4), and an oil outlet of the oil return electromagnetic stop valve (24) is connected with the oil tank (1).
4. The sweeper hydraulic system as claimed in claim 1, characterized in that the pressure reducing valve (21) is a pilot pressure reducing valve.
5. The sweeper hydraulic system as set forth in claim 1, characterized in that the overload valve (22) is a pilot overload valve.
6. The hydraulic system of the sweeper truck according to any one of claims 1 to 5, characterized by further comprising a sweeper motor (61) and a sweeper adjustment cylinder (8) connected to the same hydraulic source (10), wherein a throttle valve (5) is connected to an oil return pipe (7) of the sweeper motor (61).
7. Sweeper vehicle hydraulic system according to claim 6, characterized in that the throttle valve (5) is an electromagnetic throttle valve.
8. A sweeper truck comprising a sweeper brush mechanism (6) and a truck body (9), characterized by further comprising a sweeper truck hydraulic system as claimed in any one of claims 1 to 7; the sweeping mechanism (6) is hinged to the vehicle body (9), and two ends of the sweeping lifting oil cylinder (4) are respectively hinged to the vehicle body (9) and the sweeping mechanism (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922045549.3U CN211202463U (en) | 2019-11-22 | 2019-11-22 | Sweeper hydraulic system and sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922045549.3U CN211202463U (en) | 2019-11-22 | 2019-11-22 | Sweeper hydraulic system and sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211202463U true CN211202463U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922045549.3U Active CN211202463U (en) | 2019-11-22 | 2019-11-22 | Sweeper hydraulic system and sweeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211202463U (en) |
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2019
- 2019-11-22 CN CN201922045549.3U patent/CN211202463U/en active Active
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