CN112572393A

CN112572393A - Device for processing a hydraulic vehicle brake system

Info

Publication number: CN112572393A
Application number: CN201910945568.3A
Authority: CN
Inventors: 钟海斌; 张鑫; 李道林
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-03-30
Anticipated expiration: 2039-09-30
Also published as: CN112572393B

Abstract

The invention discloses a device for processing a hydraulic braking system of a vehicle, comprising: equipment oil tank, main line, detection pipeline, filth detection device and first protection device, the entry end and the exit end of main line all communicate to the equipment oil tank, and the detection pipeline section that detects on pipeline and the main line is parallelly connected, and the detection pipeline is located to filth detection device, and detection pipeline is located to first protection device, and is used for controlling opening and closing of detection pipeline. According to the device for processing the hydraulic brake system of the vehicle, the first protection device is arranged, so that the dirt detection device can work only when needed, and the service life of the dirt detection device is prolonged.

Description

Device for processing a hydraulic vehicle brake system

Technical Field

The invention relates to the technical field of vehicles, in particular to a device for processing a hydraulic braking system of a vehicle.

Background

The rail vehicle is provided with the hydraulic braking system, and impurities such as burrs are inevitably left in a pipeline of the hydraulic braking system in the production process of the rail vehicle, so that the pipeline of the hydraulic braking system needs to be cleaned before the rail vehicle leaves a factory, and the operation fault of the rail vehicle is avoided due to the influence of the impurities in the pipeline of the hydraulic braking system in the operation process of the rail vehicle. The related art has apparatuses for flushing the lines of the hydraulic brake system of a railway vehicle, however, these apparatuses are not perfect and need improvement, for example, the apparatuses in the related art have a short service life and high maintenance costs of the dirt detection device.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, the invention proposes a device for treating a hydraulic vehicle brake system, which device makes it possible to operate a dirt detection device only when required, thus extending the service life of the dirt detection device.

The device according to the invention for processing a hydraulic vehicle brake system comprises: an equipment oil tank; the inlet end and the outlet end of the main pipeline are communicated to the equipment oil tank; the detection pipeline is connected in parallel with a detection pipeline section on the main pipeline; the dirt detection device is arranged on the detection pipeline; and the first protection device is arranged on the detection pipeline and is used for controlling the opening and closing of the detection pipeline.

According to the device for processing the hydraulic brake system of the vehicle, the first protection device is arranged, so that the dirt detection device can work only when needed, and the service life of the dirt detection device is prolonged.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a system diagram of an apparatus according to one embodiment of the invention;

FIG. 2 is a partial system schematic of an apparatus according to another embodiment of the invention;

FIG. 3 is a partial system schematic of an apparatus according to yet another embodiment of the invention;

4-8 are schematic diagrams of system flow paths of the apparatus according to the first embodiment of the invention in different functions, wherein arrows are used to illustrate the flow direction of oil;

fig. 9-13 are schematic diagrams of system flow paths of the apparatus according to example two of the present invention in different functions, with arrows to illustrate the direction of oil flow;

fig. 14-18 are schematic diagrams of system flow paths of the apparatus according to a third embodiment of the invention in different functions, wherein arrows are used to illustrate the flow direction of oil.

Reference numerals:

the apparatus 100;

an equipment oil tank 11;

an air filter 12; a temperature sensor 13; a liquid level gauge 14; a sewage discharge outlet 15;

a main line 21; an oil inlet pipe section 211; a preset pipe section 212; detecting a pipe section 213;

a first oil inlet line segment 214; a second oil inlet line segment 215;

a third oil suction filter 216; a check valve 217;

a first on-off valve 22; a second protection device 23;

an upstream filter 241; a first upstream filter 2411;

a second upstream filter 2412; a downstream filter 242; a pressure gauge 25;

an oil pumping device 26; an oil pump 261; a motor 262;

a first flow pump 263; a second flow pump 264;

a first motor 265; a second motor 266;

is externally connected with an oil inlet pipeline 27; an external oil discharge line 28;

a regulating device 29; a regulating and controlling changeover valve 291;

the first control valve 292; a second control valve 293;

a first drain line 294; a second oil drain line 295;

flushing the exhaust line 31; a multifunctional line 31A; reserving an installation position 310;

a first hose 311; a second hose 312; a first rigid tube 313; a second rigid tube 314;

a second on-off valve 32; a reversing device 33; a fuel gun 34;

an external oil feed line 41; a filling hose 411; the third on-off valve 42;

a first relief valve 43; a second relief valve 44; a third relief valve 45;

an internal fuel filler pipe 51; a hose section 511;

a second oil suction filter 52; a switching device 53;

a switching line 61; a switching device 62; a first oil suction filter 63;

a detection line 71; a dirt detecting device 72; a first protection device 73; an oil storage tank 8;

a conduit 200 of a hydraulic vehicle brake system; a tank 300 of a hydraulic brake system of a vehicle.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

An apparatus 100 for processing a hydraulic brake system for a vehicle according to an embodiment of the present invention is described below with reference to the accompanying drawings.

Specifically, the vehicle may be a road vehicle or a rail vehicle, and a hydraulic brake system inside the vehicle needs to be regularly flushed and replaced with oil to ensure the reliability and safety of the vehicle in running. The device 100 according to the embodiment of the present invention is a device for performing at least one of the above-mentioned related processes on the hydraulic braking system of the vehicle, and it can be understood that the device 100 according to the embodiment of the present invention may be an external device or an internal device, when the device 100 is an external device, the external device is not integrated inside the vehicle, and may be disposed at a designated location, and when the vehicle travels to the designated location, the external device may be connected to the external device, so that the external device performs a corresponding process on the hydraulic braking system of the vehicle; when the device 100 is an internal device, the internal device can be integrated in the vehicle, and the vehicle can use the internal device to perform corresponding treatment on a hydraulic brake system of the vehicle at any time and any place according to needs.

As shown in fig. 1, the device 100 according to the embodiment of the present invention may include a device oil tank 11 and a main pipeline 21, wherein an inlet end 21a and an outlet end 21b of the main pipeline 21 are both communicated to the device oil tank 11, so that oil in the device oil tank 11 may enter the main pipeline 21 through the inlet end 21a of the main pipeline 21, and the oil entering the main pipeline 21 may further flow back into the device oil tank 11 through the outlet end 21b of the main pipeline 21, thereby at least realizing the recycling of the oil in the device oil tank 11 to reduce the cost.

It should be noted that the inlet end 21a of the main pipeline 21 may be in direct or indirect communication with the equipment oil tank 11, for example: can directly extend into the equipment oil tank 11 to be communicated with the equipment oil tank 11; another example is: whether or not the device is inserted into the device oil tank 11, the device oil tank can be indirectly communicated with the device oil tank 11 through a connecting pipeline. In short, as long as direct or indirect communication is satisfied, it is not described herein. Similarly, the outlet end 21b of the main pipeline 21 may be directly or indirectly communicated with the equipment oil tank 11, and will not be described in detail herein.

As shown in fig. 1, in some embodiments of the present invention, an oil pumping device 26 is disposed on the main pipeline 21, and the oil pumping device 26 is used for pumping oil in the equipment oil tank 11 into the main pipeline 21, so that the main pipeline 21 can simply and effectively utilize the oil in the equipment oil tank 11 for related work, and the overall structure of the equipment 100 is simplified. Of course, the present invention is not limited to this, and in another embodiment of the present invention, the oil pumping device 26 may not be provided in the main line 21, and in this case, the oil pumping device may be provided in another line connected to the main line 21 so that the main line 21 sucks the oil in the equipment oil tank 11.

As shown in FIG. 1, in some embodiments of the present invention, the apparatus 100 may include a filler line P including at least the inner filler line 51, with the outlet end 51b of the inner filler line 51 communicating with the apparatus tank 11 and the inlet end 51a of the inner filler line 51 being located outside the apparatus tank 11 and being used to fill the apparatus tank 11 with oil. Therefore, according to the device 100 of the embodiment of the present invention, by providing the internal refueling pipeline 51, the internal refueling pipeline 51 can be used to refuel the device oil tank 11 (for example, the function one described in a plurality of embodiments later), so that when the device oil tank 11 needs to be refueled, the device oil tank 11 does not need to be opened, and other pipelines do not need to be additionally installed, thereby facilitating the operation, improving the operation efficiency of refueling the device oil tank 11, in addition, since the tedious operation of opening and closing the device oil tank 11 is omitted, and meanwhile, other problems possibly involved by opening the device oil tank 11 can be avoided, the self refueling operation of the device oil tank 11 is greatly simplified, and the practicability is strong.

It should be noted that the outlet end 51b of the inner fuel filler pipe 51 may be directly or indirectly communicated with the equipment oil tank 11, for example: can directly extend into the equipment oil tank 11 to be communicated with the equipment oil tank 11; another example is: may be connected to the main line 21 to indirectly communicate with the equipment tank 11 through the main line 21; for another example: and the system can also be indirectly communicated with the equipment oil tank 11 through other pipelines except the main pipeline 21, and in short, the system can be directly or indirectly communicated with the equipment oil tank 11, and the detailed description is omitted here.

Furthermore, it should be noted that the internal fuel filler pipe 51 may be a hose, a hard pipe, or a combination of a hose and a hard pipe, for example, in some specific examples of the present invention, the internal fuel filler pipe 51 includes a hose segment 511 located outside the equipment fuel tank 11, so as to facilitate the operation of the operator.

In some embodiments of the present invention, when the apparatus 100 includes the internal refueling conduit 51, the apparatus 100 may further include both the switching conduit 61 and the switching device 62, the inlet end 61a of the switching conduit 61 extends into the apparatus tank 11, the switching device 62 is connected to the outlet end 61b of the switching conduit 61, the inlet end 21a of the main conduit 21 and the outlet end 51b of the internal refueling conduit 51, respectively, and the switching device 62 is used for switching one of the switching conduit 61 and the internal refueling conduit 51 to communicate with the inlet end 21a of the main conduit 21. That is, by the control of the switching device 62, the following two states can be realized.

In the first state, the internal fuel feeding line 51 is communicated with the inlet end 21a of the main line 21, so that when the oil pumping device 26 on the main line 21 is operated, the internal fuel feeding line 51 can feed oil into the equipment oil tank 11 through the main line 21 (for example, the function one described in the embodiments below), and during the internal fuel feeding, since the oil entering the internal fuel feeding line 51 needs to flow through the main line 21, the fed oil can be filtered by the filters (such as the upstream filter 241 and the downstream filter 242 described below) on the main line 21, thereby improving the cleanliness of the fed oil.

In the second state, the switching line 61 is communicated with the inlet end 21a of the main line 21, so that when the oil pumping device 26 on the main line 21 is operated, the main line 21 can suck oil from the equipment oil tank 11 through the switching line 61 to realize related functions (for example, function two, function three, function four, and function five described in the following embodiments). Thus, the operator can adjust the switching device 62 according to the actual use requirement, so that the apparatus 100 can realize different functions.

In addition, in some embodiments of the present invention, as shown in fig. 1, a switching device 53 (e.g., an electric two-way ball valve) or the like for controlling the on/off of the internal fuel filler pipe 51 may be further provided on the internal fuel filler pipe 51 to better achieve the control.

Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the switching device 62 may be used to communicate the internal fuel filling pipe 51 and the switching pipe 61, and at this time, an oil pump or the like may be provided on the internal fuel filling pipe 51 at the same time to fill the oil into the apparatus oil tank 11 through the internal fuel filling pipe 51 and the switching pipe 61 after the oil pump is started (this example is not shown).

In some embodiments of the present invention, the switching device 62 may be an electrically operated switching valve and is located within the equipment tank 11. Therefore, manual operation is not needed, labor is saved, and the structure is compact. For example, in the example shown in fig. 1, the electric switching valve may be an electric three-way valve, and at this time, an operator may communicate the oil storage tank 8 with the equipment oil tank 11 by electrically controlling the electric three-way valve, and add the oil in the oil storage tank 8 into the equipment oil tank 11 by opening the oil pumping device 26, so that the operation is convenient.

In some embodiments of the present invention, the switching device 62 may be a manual switching valve and is located outside the equipment oil tank 11. Therefore, the cost is low, and the operation is convenient. For example, in the example shown in fig. 9, the manual switching valve may be a direction control cock, in which case, an operator may manually operate the direction control cock to communicate the oil storage tank 8 with the equipment oil tank 11, and then open the oil pumping device 26 to add the oil in the oil storage tank 8 into the equipment oil tank 11, during which, the pipeline and the oil tank do not need to be detached, which is convenient to operate.

In some embodiments of the present invention, as shown in fig. 1, the switching pipeline 61 may be provided with a first oil-absorbing filter 63, so that the oil entering the main pipeline 21 through the switching pipeline 61 can be filtered by the first oil-absorbing filter 63 to improve the cleanness of the oil circulating in the main pipeline 21.

In some embodiments of the present invention, as shown in fig. 1, a second oil suction filter 52 may be disposed on the internal fuel filling pipe 51, so that the oil added into the equipment oil tank 11 through the internal fuel filling pipe 51 may be filtered by the second oil suction filter 52, so as to improve the cleanliness of the oil in the equipment oil tank 11 and prevent the equipment oil tank 11 from being contaminated during the filling process.

As shown in fig. 1, in some embodiments of the present invention, the apparatus 100 may include a fuel filler line P including at least an external fuel filler line 41, in which case an outlet end 41b of the external fuel filler line 41 is used to fill a fuel tank 300 of a hydraulic vehicle brake system. Thus, the apparatus 100 according to the embodiment of the present invention can refill the oil tank 300 of the hydraulic brake system of the vehicle with oil using the external refill line 41 by providing the external refill line 41, so that the apparatus 100 according to the embodiment of the present invention has a function of performing an oil change process for the hydraulic brake system of the vehicle (for example, a function three described in a plurality of embodiments described later).

It should be noted that the inlet end 41a of the external fuel feeding line 41 may be directly or indirectly communicated with the equipment oil tank 11, for example: can directly extend into the equipment oil tank 11 to be communicated with the equipment oil tank 11; another example is: may be connected to the main line 21 to indirectly communicate with the equipment tank 11 through the main line 21; for another example: and the system can also be indirectly communicated with the equipment oil tank 11 through other pipelines except the main pipeline 21, and in short, the system can be directly or indirectly communicated with the equipment oil tank 11, and the detailed description is omitted here.

It should be noted that, for the outlet end 41b of the external fuel filler pipe 41, a connection structure, such as the fuel filler gun 34, etc., which matches the fuel filler port of the fuel tank 300 of the hydraulic brake system of the vehicle may be provided, so that a quick and efficient fuel filling function may be satisfied. In some embodiments of the present invention, since the fuel filler port of the fuel tank of the hydraulic braking system of the railway vehicle has a uniform specification, the fuel filler gun 34 can be non-detachably fixed to the outlet end 41b of the external fuel filler pipe 41, thereby avoiding the problem of oil leakage due to the poor sealing at the detachable portion.

Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the fuel gun 34 can be detachably connected to the outlet end 41b of the external fuel pipe 41 to replace different types of fuel guns 34 for different types of fuel filler openings, so as to expand the application range of the apparatus 100 according to the embodiment of the present invention. Furthermore, it should be noted that the external fuel filling pipe 41 may be a hose, a hard pipe, or a combination of a hose and a hard pipe, for example, in the example shown in fig. 1, the external fuel filling pipe 41 may include a filling hose 411, and in this case, the fuel filling gun 34 may be disposed at an outlet end of the filling hose 411, so as to facilitate the operation.

In some embodiments of the present invention, as shown in FIG. 1, a first relief valve 43 may be provided in the refueling conduit 41. Thus, when the outlet end 41b of the external fuel filler pipe 41 is not connected to the tank 300 of the hydraulic brake system of the vehicle, the external fuel filler pipe 41 is opened to allow the oil to flow therethrough, and at this time, the first relief valve 43 may be used to discharge the oil flowing through the external fuel filler pipe 41, so that the safety and reliability may be improved, and in addition, the oil flowing out through the first relief valve 43 may be set to flow back to the equipment tank 11, so that it may be used sparingly.

In some embodiments of the present invention, as shown in FIG. 1, when the apparatus 100 includes a filler line P, the filler line P may also include both the exterior filler line 41 and the interior filler line 51 described above. From this, equipment 100 can both have the external function of refueling, possesses the self function of refueling again, powerful, and the availability is good.

In some embodiments of the present invention, as shown in FIG. 1, device 100 may comprise: the flushing exhaust pipeline 31 is connected with the preset pipeline section 212 on the main pipeline 21 in parallel, and the flushing exhaust pipeline 31 is provided with a reserved installation position 310 for connecting the pipeline 200 of the vehicle hydraulic brake system, so that the flushing exhaust pipeline 31 can be used for flushing and exhausting the pipeline 200 of the vehicle hydraulic brake system. Here, it should be noted that the flushing exhaust line 31 can only form a line through which oil can flow after the reserved installation site 310 is connected to the line 200 of the hydraulic brake system of the vehicle, and when the reserved installation site 310 is not connected to the line 200 of the hydraulic brake system of the vehicle, the middle of the flushing exhaust line 31 is disconnected and a line through which oil can flow cannot be formed.

Therefore, the flushing exhaust pipeline 31 and the preset pipeline section 212 on the main pipeline 21 are connected in parallel, so that which of the flushing exhaust pipeline 31 and the preset pipeline section 212 is communicated with oil can be selected according to actual requirements, and different actual requirements can be met.

For example, when the pipeline 200 of the vehicle hydraulic brake system needs to be flushed or exhausted, the pipeline 200 of the vehicle hydraulic brake system may be connected to the reserved installation site 310, so that the flushing exhaust pipeline 31 forms a pipeline through which oil can flow, and the flushing exhaust pipeline 31 is used for flushing or exhausting the pipeline 200 of the vehicle hydraulic brake system (for example, the function four and the function five described in the following embodiments).

For example, when the flushing or exhausting of the pipe 200 of the hydraulic vehicle brake system is not needed, the reserved installation site 310 is not connected to the pipe 200 of the hydraulic vehicle brake system, and the flushing exhaust pipe 31 is a pipe that cannot pass oil, but the preset pipe section 212 may pass through, and at this time, the oil in the equipment tank 11 may be self-cleaned (for example, the second function described in the following embodiments) by a filter (for example, the later-described upstream filter 241 or the later-described downstream filter 242) provided in the main pipe 21, so that the self-cleaning process may be performed on the equipment tank 11 when the equipment 100 is not used for a long time, when the equipment tank 11 is contaminated, or when the pipe 200 of the hydraulic vehicle brake system is flushed, and the like.

Moreover, since the flushing exhaust line 31 is connected in parallel with the preset line segment 212 on the main line 21, the preset line segment 212 and the flushing exhaust line 31 can share the upstream filter 241 located upstream of the preset line segment 212 or the downstream filter 242 located downstream of the preset line segment 212, so that the overall structure of the device 100 according to the embodiment of the present invention is more compact, the investment cost is lower, and the volume is smaller.

In some embodiments of the present invention, as shown in fig. 9, a third oil suction filter 216 may be further disposed on the main pipeline 21, and when the oil pumping device 26 is located upstream of the preset pipeline section 212, the third oil suction filter 216 may be located upstream of the oil pumping device 26, so that the first oil suction filter 63 and the second oil suction filter 52 may be omitted. In addition, when the main pipeline 21 is provided with the third oil suction filter 216, the main pipeline 21 may also be provided with an upstream filter 241 to be described later, and the upstream filter 241 may be located downstream of the oil pumping device 26.

In addition, the flushing vent line 31 and the external fuel filler line 41 are independent lines, and do not refer to the same line or different positions on the same line. Therefore, when the apparatus 100 according to the embodiment of the present invention has both the flushing vent line 31 and the external refueling line 41, the oil tank 300 of the hydraulic vehicle brake system can be refilled and the line 200 of the hydraulic vehicle brake system can be simultaneously flushed or vented, thereby saving time. In addition, since the pipe joint and the line pressure required for flushing the line 200 of the hydraulic brake system of the vehicle may be different from those required for filling the oil tank 300 of the hydraulic brake system of the vehicle, by providing the flushing vent line 31 and the external filling line 41 as separate lines, it is possible to avoid multiple times of filling the oil line and the pipe joint and to simplify the operation.

In some embodiments of the present invention, as shown in fig. 1, the flushing exhaust line 31 may include a first hose 311 and a second hose 312, an inlet end 311a of the first hose 311 is directly or indirectly communicated with an upstream end point 212a of the preset line segment 212 (i.e., an end point of a side of the preset line segment 212 close to the inlet end 21a of the main line 21), and an outlet end 312b of the second hose 312 is directly or indirectly communicated with a downstream end point 212b of the preset line segment 212 (i.e., an end point of a side of the preset line segment 212 close to the outlet end 21b of the main line 21).

As shown in fig. 1, the outlet end 311b of the first hose 311 is adapted to be connected to an inlet of the pipe 200 of the hydraulic brake system of the vehicle, and the inlet end 312a of the second hose 312 is adapted to be connected to an outlet of the pipe 200 of the hydraulic brake system of the vehicle, such that a reserved mounting place 310 is defined between the outlet end 311b of the first hose 311 and the inlet end 312a of the second hose 312, that is, a reserved mounting place 310 for accessing the pipe of the hydraulic brake system is defined between the outlet end 311b of the first hose 311 and the inlet end 312a of the second hose 312. Therefore, the structure of the flushing exhaust pipeline 31 is simple, and the connection between the flushing exhaust pipeline 31 and the pipeline 200 of the vehicle hydraulic brake system can be simply and conveniently realized by arranging the first hose 311 and the second hose 312, so that the operation is convenient.

In some embodiments of the present invention, as shown in fig. 1, the second hose 312 is a transparent tube, thereby facilitating an operator to visually observe the flushing and venting effects on the conduit 200 of the hydraulic vehicle brake system. Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the second flexible tube 312 may not be a transparent tube, for example, the second flexible tube 312 may have a transparent view port, or the second flexible tube 312 may not have a transparent view port and the second flexible tube 312 is not a transparent tube, and in this case, the effects of exhausting and flushing may be monitored by providing a sensing device.

In some examples of the present invention, as shown in fig. 1, the inlet end 311a of the first hose 311 and the upstream end 212a of the preset pipe section 212 may be connected by a first hard pipe 313 (e.g., a metal pipe, a plastic hard pipe, etc.), so that an indirect connection between the first hose 311 and the main pipe 21 may be achieved, so that the length of the first hose 311 may be shortened, the overall reliability of the purge exhaust pipe 31 may be improved to some extent, and the second on-off valve 32 for controlling the on-off of the purge exhaust pipe 31 may be provided by using the first hard pipe 313, which is convenient for installation and operation.

In some examples of the present invention, as shown in fig. 1, the outlet end 312b of the second hose 312 and the downstream end 212b of the preset pipe section 212 may be connected by a second hard pipe 314 (e.g., a metal pipe, a plastic hard pipe, etc.), so that an indirect connection between the second hose 312 and the main pipe 21 may be achieved, and thus the length of the second hose 312 may be shortened, and the overall reliability of the flushing exhaust pipe 31 may be improved to some extent.

In some embodiments of the present invention, when the apparatus 100 includes both the external fuel filler pipe 41 and the purge vent pipe 31, the inlet end 41a of the external fuel filler pipe 41 may be connected to the upstream end 212a of the preset pipe section 212. Therefore, the external oil filling pipeline 41, the flushing exhaust pipeline 31 and the preset pipeline section 212 are independent from each other, and can be selected alternatively or alternatively to meet different actual requirements, and the external oil filling pipeline 41 can also share the upstream filter 241 located at the upstream of the preset pipeline section 212, so that the overall structure of the device 100 according to the embodiment of the invention is simpler, the investment cost is lower, and the volume is smaller.

As shown in fig. 1, in order to realize one or more selections among the external fuel feeding pipeline 41, the flushing vent pipeline 31 and the preset pipeline section 212, a first switch valve 22 for controlling the opening and closing of the preset pipeline section 212 may be disposed on the preset pipeline section 212, a second switch valve 32 for controlling the opening and closing of the flushing vent pipeline 31 is disposed on the flushing vent pipeline 31, and a third switch valve 42 for controlling the opening and closing of the external fuel feeding pipeline 41 is disposed on the external fuel feeding pipeline 41. Thus, it is possible to control whether or not the preset pipe section 212 is filled with oil by controlling the operation of the first on-off valve 22; the flushing exhaust pipeline 31 can be controlled to be communicated with oil or not by controlling the action of the second switch valve 32; whether the external oil filling pipeline 41 is filled with oil or not can be controlled by controlling the action of the third switching valve 42, so that different functions can be realized.

For example, when the vehicle hydraulic brake system does not need to be flushed, vented or refueled, and self-cleaning of the equipment tank 11 is required (for example, the function two described in the following embodiments), the preset line section 212 may be opened by the first on-off valve 22, and the second on-off valve 32 and the third on-off valve 42 may be closed, so that self-cleaning via the preset line section 212 is achieved.

For example, when the line 200 of the vehicle hydraulic brake system needs to be flushed or vented, and when the oil tank 300 of the vehicle hydraulic brake system does not need to be filled (for example, function four or function five described in various embodiments below), the preset line section 212 may be opened by the second on-off valve 32, and the first on-off valve 22 and the third on-off valve 42 may be closed, so that flushing or venting via the flushing vent line 31 is achieved.

For example, when the oil tank 300 of the vehicle hydraulic brake system needs to be filled and the pipeline 200 of the vehicle hydraulic brake system does not need to be flushed and exhausted (for example, the function three described in the following embodiments), the preset pipeline section 212 may be opened by the third on/off valve 42, and the first on/off valve 22 and the second on/off valve 32 may be closed, so that the external oil filling via the external oil filling pipeline 41 is realized.

Of course, the present invention is not limited to this, and at least two of the first on-off valve 22, the second on-off valve 32, and the third on-off valve 42 may also exhibit opening actions simultaneously, for example, the first on-off valve 22 may be closed, and the second on-off valve 32 may be opened simultaneously, so as to flush or vent the pipeline 200 of the vehicle hydraulic brake system while filling the oil tank 300 of the vehicle hydraulic brake system. In addition, the present invention is not limited thereto, and a switching valve (not shown) may be used instead of at least two of the first on/off valve 22, the second on/off valve 32, and the third on/off valve 42 to switch at least two of the external fuel filler pipe 41, the purge vent pipe 31, and the preset pipe section 212 to be opened alternatively by the operation of the switching valve.

It should be noted that the device 100 according to the embodiment of the present invention may not include the external fuel filler pipe 41. For example, in some embodiments of the present invention, as shown in fig. 16, a detachable fuel nozzle 34 may be disposed at the outlet end 311b of the first hose 311, so that the flushing vent line 31 is a multifunctional line 31A which can be used for filling the oil tank 300 of the vehicle hydraulic brake system, that is, when the oil tank 300 of the vehicle hydraulic brake system needs to be filled, the fuel nozzle 34 may be installed at the outlet end 311b of the first hose 311, and when the pipeline 200 of the vehicle hydraulic brake system needs to be flushed or vented, the fuel nozzle 34 may be detached from the outlet end 311b of the first hose 311, so as to connect the outlet end of the first hose 311 to the inlet of the pipeline 200 of the vehicle hydraulic brake system directly or through other joints.

In addition, as shown in fig. 16, when the apparatus 100 includes the multi-function line 31A connected in parallel with the preset line section 212, a reversing device 33 (e.g., an electromagnetic reversing valve) may be provided at an inlet end of the multi-function line 31A and an upstream end 212a of the preset line section 212, so as to switch the oil passing between the preset line section 212 and one of the multi-function lines 31A to implement the relevant function.

In addition, when the flushing vent line 31 is a multifunctional line 31A that also charges the oil tank 300 of the hydraulic vehicle brake system, the multifunctional line 31A may be provided with the second relief valve 44 and the preset line segment 212 may be provided with the third relief valve 45, thereby improving the operational reliability of the apparatus 100. In addition, the oil return ports of the second relief valve 44 and the third relief valve 45 can be communicated to the equipment oil tank 11, so that the oil can be recycled. Of course, the present invention is not limited to this, and in other embodiments of the present invention, the first relief valve 43, the second relief valve 44, and the third relief valve 45 may not be provided, at this time, the main line 21 may be provided with a main relief valve, and at this time, the limiting pressure of the main relief valve needs to be adjusted in real time according to the pressure change of the external filling, the external flushing, and the external exhaust, so that the main relief valve can perform the corresponding protection function when the corresponding function is implemented.

Furthermore, it should be noted that the apparatus 100 according to the embodiment of the present invention may not include the flushing exhaust pipe 31, for example, in some embodiments of the present invention, the reserved installation site 310 may be directly disposed on the main pipe 21 (or the main pipe 21 may directly include the first hose 311 and the second hose 312 that may define the reserved installation site 310), and the detachable fuel nozzle 34 may be equipped to perform operations of flushing, exhausting, filling and the like on the hydraulic brake system of the vehicle.

In some embodiments of the present invention, as shown in fig. 1, an upstream filter 241 and a downstream filter 242 may be disposed on the main pipeline 21, wherein the upstream filter 241 is located upstream of the preset pipeline section 212, and the downstream filter 242 is located downstream of the preset pipeline section 212. That is, an upstream filter 241 is disposed between the inlet end 21a of the main pipeline 21 and the preset pipeline section 212, and a downstream filter 242 is disposed between the outlet end 21b of the main pipeline 21 and the preset pipeline section 212. Thus, when the preset pipe section 212 is opened, the equipment oil tank 11 can be self-cleaned by the upstream filter 241 and the downstream filter 242, that is, the oil in the equipment oil tank 11 can enter the main pipeline 21 from the inlet end 21a of the main pipeline 21, then firstly passes through the filtering of the upstream filter 241, then passes through the preset pipe section 212, flows to the downstream filter 242 for cleaning again, and then flows back to the equipment oil tank 11 from the outlet end 21b of the main pipeline 21, and the oil in the equipment oil tank 11 can be self-cleaned by circulating the oil.

Moreover, by disposing the upstream filter 241 and the downstream filter 242 respectively upstream and downstream of the preset pipe section 212, when the flushing exhaust line 31 is connected in parallel to the preset pipe section 212, the flushing exhaust line 31 can share the upstream filter 241 and the downstream filter 242 with the preset pipe section 212, thereby eliminating the expense and operation of additionally disposing a filter on the flushing exhaust line 31, simplifying the structure and reducing the cost. Therefore, when the flushing exhaust pipeline 31 is opened, the oil which is about to enter the pipeline 200 of the vehicle hydraulic brake system can be pre-filtered by the upstream filter 241, then enters the first hose 311 and flows into the inlet of the pipeline 200 of the vehicle hydraulic brake system, so as to improve the cleaning effect of flushing and exhausting the pipeline 200 of the vehicle hydraulic brake system, and after the oil for flushing or exhausting is discharged from the outlet of the pipeline 200 of the vehicle hydraulic brake system, the oil can flow to the downstream filter 242 from the second hose 312, so as to clean the oil which is possibly wrapped by dirt in the pipeline 200 of the vehicle hydraulic brake system after flushing, so as to improve the cleanness of the oil which flows back to the equipment oil tank 11.

Moreover, by disposing the upstream filter 241 upstream of the preset pipe segment 212, when the upstream end point 212a of the preset pipe segment 212 is connected to the inlet end 41a of the external fuel filler pipe 41, the external fuel filler pipe 41 can also share the upstream filter 241 with the preset pipe segment 212, thereby eliminating the expense and operation of additionally disposing a filter on the external fuel filler pipe 41, simplifying the structure, reducing the cost, and ensuring the cleanliness of refueling the oil tank 300 of the hydraulic brake system of the vehicle.

Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the apparatus 100 may not have at least one of the upstream filter 241 and the downstream filter 242, and in this case, the cleaning effect under various functions may be achieved by providing the filter at other positions. For example, only the upstream filter 241 may be provided without the downstream filter 242, or for example, only the downstream filter 242 may be provided without the upstream filter 241, or for example, neither the upstream filter 241 nor the downstream filter 242 may be provided, in this case, filters may be provided in the equipment oil tank 11, the inlet end 21a of the main pipeline 21, and the outlet end 21b of the main pipeline 21, or filters may be provided on the preset pipeline section 212, the external oil adding pipeline 41, and the flushing exhaust pipeline 31, respectively, and so on, which will not be described herein again.

In some specific examples, as shown in fig. 1, the upstream filter 241 may be multiple (multiple refers to two or more) and include a first upstream filter 2411 and a second upstream filter 2412, the first upstream filter 2411 is disposed upstream of the second upstream filter 2412, and the filtering accuracy of the first upstream filter 2411 is smaller than that of the second upstream filter 2412. Therefore, the filtering effect can be more effectively improved. The downstream filter 242 may be a plurality of (a plurality of means two or more) filters and include a first downstream filter and a second downstream filter (this example is not shown), the first downstream filter being provided upstream of the second downstream filter, and the filtering accuracy of the first downstream filter being smaller than that of the second downstream filter. Therefore, the filtering effect can be more effectively improved.

In some embodiments of the present invention, as shown in fig. 1, the apparatus 100 may further comprise: the oil cleaning device comprises a detection pipeline 71 and a dirt detection device 72, wherein the detection pipeline 71 is connected with a detection pipeline section 213 on a main pipeline 21 in parallel, the dirt detection device 72 is arranged on the detection pipeline 71, namely, oil which is about to flow into the detection pipeline section 213 on the main pipeline 21 can also simultaneously flow into the detection pipeline 71, so that the dirt detection device 72 on the detection pipeline 71 detects the cleaning degree of the oil, and the cleaning effect of the oil is judged, for example, the cleaning effect can be judged by using the dirt detection device 72 in the process of self-cleaning the oil in an equipment oil tank 11 (for example, a function two described in a plurality of embodiments) or the process of flushing a pipeline 200 of a vehicle hydraulic brake system (for example, a function four described in a plurality of embodiments).

In some embodiments of the invention, the detection line section 213 in parallel with the detection line 71 may be located downstream of the pre-set line section 212 in parallel with the purge exhaust line 31. Therefore, the cleaning effect can be known more intuitively and quickly in time sequence. Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the detection pipe section 213 may be disposed upstream of the preset pipe section 212. Furthermore, when the preset pipe section 212 is located upstream of the detection pipe section 213, the above-mentioned downstream filter 242 may be provided downstream of the detection pipe section 213, so that no filter is provided between the flushing exhaust line 31 and the detection pipe section 213, so that the contamination detection device 72 may more intuitively and truly reflect the flushing effect of the line 200 of the hydraulic brake system of the vehicle. In addition, the specific type of the contamination detecting device 72 is not limited as long as it can detect the degree of cleanliness of the oil flowing through the detection line 71, and may be, for example, an online particle counter or the like.

In some embodiments of the present invention, as shown in fig. 1, when the apparatus 100 includes the detection line 71 and the contamination detection device 72, the apparatus 100 may also include a first protection device 73, and the first protection device 73 is disposed on the detection line 71 and is used for controlling the opening and closing of the detection line 71. Thus, when the first protection device 73 opens the detection line 71, the oil on the main line 21 that is about to flow into the detection line section 213 may also flow into the detection line 71 at the same time, and the dirt detection device 72 on the detection line 71 detects the degree of cleaning of the oil, so as to determine the cleaning effect of the oil, for example, during the process of self-cleaning the oil in the equipment oil tank 11 (for example, the second function described in the following embodiments), or during the process of flushing the line 200 of the vehicle hydraulic brake system (for example, the fourth function described in the following embodiments), the cleaning effect may be determined by the dirt detection device 72.

Moreover, the first protection device 73 is arranged on the detection pipeline 71, so that the detection pipeline 71 can be opened only when the oil cleaning effect needs to be detected, and the detection pipeline 71 can be closed when the oil cleaning effect does not need to be detected, so that oil is prevented from entering the dirt detection device 72, the dirt detection device 72 is protected, the service life of the dirt detection device 72 is prolonged, and the equipment maintenance cost is reduced. It should be noted that the position of the first protection device 73 on the detection pipeline 71 is not limited, for example, in some specific examples, the first protection device 73 may be arranged upstream of the dirt detection device 72, so that the dirt detection device 72 may be better protected from the source.

In some specific examples, the first protection device 73 may be a normally closed solenoid valve, and the detection pipeline 71 is closed in case of power loss, so that the first protection device 73 may be powered on to open the detection pipeline 71 only when the dirt detection device 72 needs to be used for detection, so as to better improve the protection reliability of the first protection device 73, save electric energy and reduce the probability of misoperation. Of course, the type of the first protection device 73 is not limited thereto, and may be, for example, a manual valve, a normally open solenoid valve, or the like.

In some embodiments of the present invention, while the apparatus 100 comprises the detection line 71, the contamination detection device 72 and the first protection device 73, the apparatus 100 may further comprise: and a second protector 23, the second protector 23 being provided to the test line segment 213 and controlling the opening and closing of the test line segment 213. Therefore, when the dirt detection device 72 is required to detect the cleaning effect, the first protection device 73 can be controlled to open the detection pipeline 71 on the one hand, and the second protection device 23 can be controlled to close the detection pipeline section 213 on the other hand, so that the detection pipeline section 213 is prevented from shunting the detection pipeline 71, the oil quantity flowing through the detection pipeline 71 is improved, and the detection speed and the detection reliability are improved.

The inventor finds that, because the detection pipeline 71 and the detection pipeline section 213 are connected in parallel, when the resistance of the detection pipeline section 213 is smaller than that of the detection pipeline 71, most of the oil will flow through the detection pipeline section 213, and a small part of the oil will flow through the detection pipeline 71, so that the detection efficiency and the detection reliability of the contamination detection device 72 cannot be well exerted, therefore, the inventor creatively thinks that, by arranging the second protection device 23 on the detection pipeline section 213, when the contamination detection device 72 needs to be adopted for detection, the second protection device 23 is directly used for closing the detection pipeline section 213, so that the detection pipeline section 213 can be prevented from shunting the detection pipeline section 71, the detection efficiency and the detection reliability of the contamination detection device 72 can be improved, and therefore, the working time can be shortened, and the contamination detection device 72 can be protected.

In some specific examples, the second protection device 23 may be a normally open solenoid valve, and causes the detection line 71 to open in the event of a power loss. Therefore, the second protection device 23 can be powered on only when the dirt detection device 72 needs to be used for detection, so that the detection pipeline section 213 is closed, electric energy can be saved better, and the misoperation probability is reduced. Of course, the type of the second protection device 23 is not limited thereto, and may also be, for example, a manual valve, a normally closed solenoid valve, or the like.

It should be noted that, in the related art, the apparatus for performing the relevant processing on the hydraulic brake system of the vehicle is not provided with the protection device for protecting the online particle counter, and the service life of the online particle counter is reduced after the online particle counter is used for a period of time, but according to the apparatus 100 of the embodiment of the present invention, by providing the first protection device 73, or the first protection device 73 and the second protection device 23, the operation of the dirt detection device 72 at any time can be avoided, for example, the dirt detection device 72 can be prevented from being operated in the state of function one, function three, function five, etc. in the embodiments described later, and the operation time of the dirt detection device 72 in the state of function two, function four, etc. in the embodiments described later can be shortened, so that the service life of the dirt detection device 72 can be prolonged.

In some embodiments of the present invention, the apparatus 100 according to the embodiment of the present invention may further include an oil pumping device 26 for pumping oil in the apparatus oil tank 11 into the main pipeline 21, for example, in the example shown in fig. 9, the oil pumping device 26 may include only one oil pump 261, and the oil pump 261 is disposed on the main pipeline 21 and near the inlet end 21a of the main pipeline 21, thereby simply and effectively achieving oil pumping. Furthermore, in the embodiment of the present invention, the oil pump 261 may be located inside the equipment oil tank 11, but the driving motor 262 for driving the oil pump 261 to operate may be located outside the equipment oil tank 11, so that the appearance simplicity and the structural compactness of the equipment 100 may be improved, the degree of miniaturization is high, and the occupied space is small, while the safety of the driving motor 262 is ensured.

Of course, the oil pumping device 26 according to the embodiment of the present invention is not limited thereto, and for example, in the example shown in fig. 1, the oil pumping device 26 may further include: the flow rate of the first flow pump 263 is less than that of the second flow pump 264, and both the first flow pump 263 and the second flow pump 264 are used for pumping the oil in the equipment oil tank 11 into the main pipeline 21, at this time, the equipment 100 may further include a regulating device 29, and the regulating device 29 is used for regulating the oil inlet condition of the main pipeline 21.

Specifically, the control device 29 may have a first control state, and at the same time, the control device 29 may have at least one of a second control state and a third control state, that is, the control device 29 may have and switch the first control state and the second control state at the same time, the control device 29 may have and switch the first control state and the third control state at the same time, and the control device 29 may have and switch the first control state, the second control state and the third control state at the same time.

In the first regulation state, the first flow pump 263 pumps oil in the main pipe 21, and the second flow pump 264 does not pump oil in the main pipe 21, so that the oil flow rate of the main pipe 21 is low. In the second control state, the main line 21 is pumped by the first flow pump 263 and the second flow pump 264 together, and at this time, the oil flow rate of the main line 21 is high. In the third control state, the second flow pump 264 pumps oil in the main line 21, and the first flow pump 263 does not pump oil in the main line 21, and at this time, the oil flow rate of the main line 21 is between the higher and lower. Therefore, the oil passing amount of the main pipeline 21 can be regulated and controlled according to the change of a specific application scene, so that different actual requirements are met.

For example, when the pipeline 200 of the vehicle hydraulic brake system needs to be exhausted, the regulation state can be controlled to a first regulation state, at this time, the oil passing amount of the main pipeline 21 is small, the pressure is high, at this time, oil with low flow and high pressure can be utilized to fully exhaust the pipeline, the problem that a large amount of bubbles are generated in the pipeline is avoided, the reliability of exhaust is improved, and the air in the pipeline is completely exhausted. For another example, when the volume of the oil tank 300 of the vehicle hydraulic brake system is small, the control can be performed to a first control state, and at this time, the oil flow of the main pipeline 21 is low, so that oil can be accurately and reliably filled into the small-volume oil tank, and the problem that the oil filling amount is difficult to control due to the fact that a high-displacement pump is used for pumping oil is avoided; when the capacity of the oil tank 300 of the vehicle hydraulic braking system is large, the oil tank can be regulated to a second regulation state or a third regulation state, and at the moment, the oil flow of the main pipeline 21 is high, so that the oil can be filled into the large-capacity oil tank quickly.

The specific configuration of the control device 29 is not limited as long as the above technical effects can be achieved. For example, when it is necessary to regulate and control the second flow pump 264 not to pump oil to the main pipeline 21, the oil path through which the second flow pump 264 communicates with the main pipeline 21 may be switched to another position, or the oil path through which the second flow pump 264 communicates with the main pipeline 21 may be closed, or the motor that drives the second flow pump 264 to operate may be closed. Hereinafter, several different regulation methods will be briefly described, but the present invention is not limited to the following several different regulation methods.

It should be noted that specific parameters of the first flow pump 263 and the second flow pump 264 are not limited, for example, in a specific example of the present invention, the flow rate of the first flow pump 263 is 3L/min, the maximum pressure is 16MPa, the flow rate of the second flow pump 264 is 16L/min, and the maximum pressure is 3MPa, since the power calculation formula of the hydraulic pump is as follows: in this example, the first flow pump 263 and the second flow pump 264 have equal power, the flow rate of the first flow pump 263 is smaller than the flow rate of the second flow pump 264, and the maximum pressure of the first flow pump 263 is greater than the maximum pressure of the second flow pump 264. However, it should be noted that the above example is only an optional example of the present invention, and in the present invention, although it is limited that the flow rate of the first flow pump 263 is smaller than the flow rate of the second flow pump 264, the magnitude relationship between the power of the first flow pump 263 and the power of the second flow pump 264 is not limited, and the magnitude relationship between the maximum pressure of the first flow pump 263 and the maximum pressure of the second flow pump 264 is not limited, and may be specifically selected according to actual situations.

For example, in some embodiments, as shown in fig. 1, when the oil pumping device 26 includes a first flow pump 263 and a second flow pump 264, the oil pumping device 26 may further include a motor 262, and both the first flow pump 263 and the second flow pump 264 are driven by the same motor 262, so that the oil pumping device 26 is a dual pump. In this case, the amount of the motor 262 can be reduced, the cost can be reduced, the structure can be simplified, the apparatus 100 can be miniaturized, and the control can be simplified and the reliability of the control can be improved.

As shown in fig. 1, when the oil pumping device 26 is a dual pump, the main pipeline 21 may further include an oil inlet pipe section 211 (the oil inlet pipe section 211 may be located at an upstream of the preset pipe section 212), the first flow pump 263 is disposed on the oil inlet pipe section 211, the apparatus 100 further includes an external oil inlet pipe 27 and an external oil discharge pipe 28, the second flow pump 264 is disposed on the external oil inlet pipe 27, an inlet end 27a of the external oil inlet pipe 27 is connected to an upstream end 211a of the oil inlet pipe section 211, an outlet end 28b of the external oil discharge pipe 28 is communicated with the apparatus oil tank 11, the control device 29 includes a control and switching valve 291, and an outlet end 27b of the external oil inlet pipe 27, a downstream end 211b of the oil inlet pipe section 211, and an inlet end 28a of the external oil discharge pipe 28 are all connected to the control and switching valve 291.

As shown in fig. 1, the control and direction valve 291 is used to switch one of the main line 21 and the external oil discharge line 28 to communicate with the outlet end 27b of the external oil inlet line 27. That is, in one case, the outlet end 27b of the external oil inlet pipeline 27 is communicated with the main pipeline 21, at this time, when the second flow pump 264 is in operation, the oil pumped into the external oil inlet pipeline 27 can be delivered to the main pipeline 21, at this time, because the oil pumping device 26 is a dual pump, the first flow pump 263 pumps the oil to the main pipeline 21 through the oil inlet pipeline section 211 at the same time, so that the control device 29 is switched to the second control state.

In another case, as shown in fig. 1, the outlet end 27b of the external oil inlet pipeline 27 is communicated with the external oil discharge pipeline 28, and at this time, when the second flow pump 264 is in operation, the oil pumped into the external oil inlet pipeline 27 can be delivered to the external oil discharge pipeline 28, and then delivered back to the equipment oil tank 11 from the outlet end 28b of the external oil discharge pipeline 28, and at this time, because the oil pumping device 26 is a dual pump, the first flow pump 263 pumps the oil to the main pipeline 21 through the oil inlet pipeline section 211, so as to indicate that the control device 29 is switched to the first control state. Thereby, the above-described effects can be achieved simply and efficiently.

In short, when the oil pumping device 26 is a dual pump, simultaneous operation of a large displacement pump (i.e., the second displacement pump 264) and a small displacement pump (i.e., the first displacement pump 263) can be achieved, wherein the control reversing valve 291 is used for adjusting the large displacement pump (i.e., the second displacement pump 264), and meanwhile, the external oil discharge pipeline 28 is used for discharging oil of the large displacement pump (i.e., the second displacement pump 264) under some functions, so that the equipment 100 can meet flushing flow flushing of different pipe diameters, achieve large displacement flushing and small displacement oil injection, and achieve the purpose of accurately controlling the oil injection amount and the like.

Of course, the present invention is not limited thereto, for example, as shown in fig. 2, when the oil pumping device 26 is a dual pump, the main pipeline 21 includes a first oil inlet pipe section 214 and a second oil inlet pipe section 215 which are arranged in parallel, a first flow pump 263 is arranged on the first oil inlet pipe section 214, a second flow pump 264 is arranged on the second oil inlet pipe section 215, the control device 29 includes a first control valve 292 and a second control valve 293, the first control valve 292 is arranged on the first oil inlet pipe section 214 and is used for controlling the oil supply and blocking of the first oil inlet pipe section 214, the second control valve 293 is arranged on the second oil inlet pipe section 215 and is used for controlling the oil supply and blocking of the second oil inlet pipe section 215, when the first control valve 292 blocks the first oil inlet pipe section 214, the first control valve 292 drains the oil from the first oil inlet pipe section 214 back to the equipment oil tank 11 through the first oil drain pipe section 294, when the second control valve 293 blocks the second oil inlet pipe section 215, the second control valve 293 drains the oil of the second oil inlet line segment 215 back to the equipment oil tank 11 through the second oil drain line 295. Therefore, the switching among the three states of the first regulation state, the second regulation state and the third regulation state can be realized by respectively regulating the states of the first control valve 292 and the second control valve 293 so as to meet different oil pumping quantity requirements.

Of course, the present invention is not limited thereto, when the oil pumping device 26 includes the first flow pump 263 and the second flow pump 264, the oil pumping device 26 may not be a dual pump, for example, in some embodiments, as shown in fig. 3, the oil pumping device 26 includes a first motor 265 and a second motor 266, the first flow pump 263 is driven by the first motor 265, the second flow pump 264 is driven by the second motor 266, the main pipeline 21 includes a first oil inlet pipe section 214 and a second oil inlet pipe section 215 which are arranged in parallel, the first flow pump 263 is disposed on the first oil inlet pipe section 214, the second flow pump 264 is disposed on the second oil inlet pipe section 215, and the control device 29 controls the on-off state of the first motor 265 and the on-off state of the second motor 266. Therefore, the control device 29 controls the switches of the first motor 265 and the second motor 266 respectively to switch the first control state, the second control state and the third control state, so as to meet different oil pumping requirements.

In some embodiments of the present invention, as shown in fig. 1, the equipment tank 11 may further have at least one of a drain outlet 15, an air filter 12, a liquid level gauge 14, and a temperature sensor 13 to facilitate related operations. For example, when the equipment oil tank 11 is provided with the sewage discharge port 15, the bottom of the equipment oil tank 11 can be cleaned by depositing dirt without detaching the equipment oil tank 11, and the equipment oil tank is convenient to operate, time-saving and labor-saving.

For example, when equipment oil tank 11 possesses air cleaner 12, make the inside pressure of equipment oil tank 11 can be balanced with external atmosphere, when handling vehicle hydraulic braking system, avoid forming the negative pressure in the equipment oil tank 11, cause fluid to flow against the current scheduling problem, improve the reliability of operation, and through setting up air cleaner 12, make equipment oil tank 11 need not to set up to open structure, thereby can avoid falling into foul scheduling problem in the equipment oil tank 11, can guarantee equipment oil tank 11's cleanliness to a certain extent.

For example, when the equipment oil tank 11 is provided with the liquid level meter 14, the liquid level meter 14 can be used for observing the liquid level height of the equipment oil tank 11 in real time so as to fill the equipment oil tank 11 with oil in time, or the oil filling condition is observed in the process of filling the equipment oil tank 11, so that the phenomenon that the equipment 100 works when the liquid level of the equipment oil tank 11 is too low, the oil pumping device 26 works in the environment with insufficient hydraulic pressure, and the oil pumping device 26 is overheated to cause failure is avoided.

In addition, the main pipe 21 may also have a pressure gauge 25, so as to improve the working safety and reliability of the whole device 100, for example, once the value of the pressure gauge 25 deviates from the normal value, it may indicate that some pipes are blocked or not communicated, and it is necessary to adjust and check in time.

In some embodiments of the present invention, the size of the equipment tank 11 is not limited, the type of each valve is not limited, and the filtering accuracy of each filter is not limited. For example, in the first embodiment described later, the effective volume of the equipment tank 11 may be 30L, the effective volume of the oil storage tank 8 may be 208L, the filtering accuracy of the first upstream filter 2411 may be 10 microns, the filtering accuracy of the second upstream filter 2412 may be 5 microns, the filtering accuracy of the downstream filter 242 may be 10 microns, the filtering accuracy of the first oil suction filter 63 may be 180 microns, the filtering accuracy of the second oil suction filter 52 may be 180 microns, the first switching valve 22 may be a power-off solenoid directional valve, the second switching valve 32 may be a power-off solenoid directional valve, the third switching valve 42 may be a power-off solenoid directional valve, and the control directional valve 291 may be a power-off solenoid directional valve that is turned on; the reversing device 33 in the third embodiment may be an electromagnetic reversing valve that is powered left-hand.

It is to be noted that different embodiments or examples and features of different embodiments or examples described in this specification may be combined and combined by one skilled in the art without contradiction. For example, the embodiments shown in each drawing in the description of the invention can be combined by several embodiments described in the invention, and belong to the disclosure of the invention.

The apparatus 100 of three embodiments of the present invention will now be described briefly with reference to the accompanying drawings.

Example one

As shown in fig. 4-8, the apparatus 100 may include: the device comprises an equipment oil tank 11, a main pipeline 21, a flushing exhaust pipeline 31, an external oil filling pipeline 41, an internal oil filling pipeline 51, a switching pipeline 61, a detection pipeline 71, an external oil inlet pipeline 27 and an external oil discharge pipeline 28. The main line 21 comprises, arranged in sequence along the direction of circulation of the oil: an oil inlet pipe section 211, a preset pipe section 212, and a detection pipe section 213. A first upstream filter 2411 and a second upstream filter 2412 are arranged between the oil inlet pipe section 211 and the preset pipe section 212, a pressure gauge 25 is arranged between the preset pipe section 212 and the detection pipe section 213, and a downstream filter 242 is arranged at the downstream of the detection pipe section 213. The equipment oil tank 11 has a temperature sensor 13, an air filter 12, a liquid level meter 14, and a drain outlet 15.

The switching line 61 is provided with a first oil suction filter 63. The internal fuel filler pipe 51 is provided with a switching device 53 and a second suction filter 52. The internal fuel feeding pipeline 51, the switching pipeline 61 and the main pipeline 21 are connected through a switching device 62, the switching device 53 is an electric two-way ball valve, and the switching device 62 is an electric three-way ball valve, and is used for switching whether the internal fuel feeding pipeline 51 feeds fuel to the equipment fuel tank 11 through the main pipeline 21 or the main pipeline 21 sucks fuel from the equipment fuel tank 11 through the switching pipeline 61.

The main pipeline 21 pumps oil through a second flow pump 264 and a first flow pump 263, the second flow pump 264 and the first flow pump 263 pump oil and are connected with the same motor 262 to form a duplex pump, the first flow pump 263 is arranged on the oil inlet pipeline section 211, the external oil inlet pipeline 27 is connected with the oil inlet pipeline section 211 in parallel, the second flow pump 264 is arranged on the external oil inlet pipeline 27, the external oil inlet pipeline 27 and the external oil discharge pipeline 28 are connected with the downstream end point 211b of the oil inlet pipeline section 211 through a control reversing valve 291, and the control reversing valve 291 is used for switching the communication between the outlet end 27b of the external oil inlet pipeline 27 and one of the main pipeline 21 and the external oil discharge pipeline 28, so as to control whether the oil pumped by the second flow pump 264 is supplied to the main pipeline 21 or discharged back to the equipment oil tank 11.

The flushing vent line 31 is connected in parallel to the predetermined line section 212 on the main line 21, that is, the inlet end 31a of the flushing vent line 31 is connected to the upstream end 212a of the predetermined line section 212, the outlet end 31b of the flushing vent line 31 is connected to the downstream end 212b of the predetermined line section 212, the predetermined line section 212 is provided with the first on-off valve 22, the flushing vent line 31 is provided with the second on-off valve 32, the external oil supply line 41 is led out from the upstream end 212a of the predetermined line section 212, and the external oil supply line 41 is provided with the third on-off valve 42.

The detection pipeline 71 is connected in parallel with the detection pipeline section 213 on the main pipeline 21, that is, the inlet end of the detection pipeline 71 is connected with the upstream end point 213a of the detection pipeline section 213, the outlet end of the detection pipeline 71 is connected with the downstream end point 213b of the detection pipeline section 213, the detection pipeline 71 is provided with a dirt detection device 72 and a first protection device 73 located upstream of the dirt detection device 72, and the detection pipeline section 213 is provided with a second protection device 23.

The apparatus 100 according to the first embodiment of the present invention may have at least the following five functions:

function one: self priming function

As shown in fig. 4, the internal fuel feeding pipeline 51 is opened by the electric two-way ball valve 53, the internal fuel feeding pipeline 51 is connected with the main pipeline 21 by the electric three-way ball valve as the switching device 62, the fuel pumping device 26 is started, the second flow pump 264 and the first flow pump 263 operate simultaneously, the control reversing valve 291 is turned off when power is lost, the external fuel feeding pipeline 27 is connected into the main pipeline 21, the first switch valve 22 is turned on when power is supplied to open the preset pipeline section 212, the first protection device 73 is turned off when power is lost, the second protection device 23 is turned on when power is lost, the fuel in the fuel storage tank 8 is filled into the equipment tank 11, and the hydraulic fluid is filtered by the second fuel suction filter 52, the first upstream filter 2411, the second upstream filter 2412 and the downstream filter 242 during filling.

And a second function: self filtering function

As shown in fig. 5, the internal oil feeding pipeline 51 is closed by the electric two-way ball valve 53, the switching pipeline 61 is connected with the main pipeline 21 by the electric three-way ball valve as the switching device 62, the oil pumping device 26 is started, the second flow pump 264 and the first flow pump 263 operate simultaneously, the control reversing valve 291 is powered off and is powered on, the external oil feeding pipeline 27 is connected with the main pipeline 21, the first switch valve 22 is powered on and is opened to communicate with the preset pipeline section 212, the first protection device 73 is powered on and is opened, the second protection device 23 is powered on and is powered off to circulate the hydraulic oil of the equipment oil tank 11 along the self filtering oil circuit, the hydraulic oil is circularly filtered by the first oil suction filter 63, the first upstream filter 2411, the second upstream filter 2412 and the downstream filter 242 in the flowing process, the dirt detection device 72 on the detection pipeline 71 is used for detecting the pollution degree level of the purified oil, when the detected contamination level reaches the set value, a signal is sent, the apparatus 100 may be automatically stopped (for example, the oil pumping device 26 may be stopped), and the target level of oil purification may be set by the contamination detection device 72.

And function III: external filling function

As shown in fig. 6, the internal oil feeding pipeline 51 is closed by the electric two-way ball valve 53, the switching pipeline 61 is connected with the main pipeline 21 by the electric three-way ball valve serving as the switching device 62, the oil pumping device 26 is started, the second flow pump 264 and the first flow pump 263 work simultaneously, but the control reversing valve 291 is electrically connected to the upper side, so that the external oil feeding pipeline 27 is connected with the external oil discharging pipeline 28, the hydraulic oil pumped into the external oil feeding pipeline 27 by the second flow pump 264 can be discharged back to the equipment oil tank 11 through the external oil discharging pipeline 28, and at this time, only the first flow pump 263 pumps oil to the main pipeline 21; meanwhile, the third switching valve 42 is electrically opened to communicate with the external oil filling pipeline 41, the oil filling gun 34 at the outlet end 411b of the filling hose 411 of the external oil filling pipeline 41 is communicated with the oil tank 300 of the hydraulic braking system of the vehicle, and the hydraulic oil in the main pipeline 21 is filled into the oil tank 300 of the hydraulic braking system of the vehicle through the external oil filling pipeline 41. The external fuel charging line 41 is provided with a first relief valve 43 for relieving the high system pressure to prevent the hydraulic lines (such as the main line 21 and the external fuel charging line 41) from being damaged by the high pressure due to the actuation of the oil pumping device 26 when the charging hose 411 is not connected to the oil tank 300 of the hydraulic brake system of the vehicle.

And the function is four: washing and purifying function

As shown in fig. 7, the internal oil feeding pipeline 51 is closed by the electric two-way ball valve 53, the switching pipeline 61 is connected with the main pipeline 21 by the electric three-way ball valve as the switching device 62, the oil pumping device 26 is started, the second flow pump 264 and the first flow pump 263 operate simultaneously, the control reversing valve 291 is powered off and is powered on, the external oil feeding pipeline 27 is connected with the main pipeline 21, the second switch valve 32 is powered on and is opened to communicate with the flushing exhaust pipeline 31, the first protection device 73 is powered on and is opened, the second protection device 23 is powered off, the hydraulic oil continuously passes through the first oil suction filter 63, the first upstream filter 2411, the second upstream filter 2412 and the downstream filter 242 to circularly flush and purify the hydraulic oil, the dirt detection device 72 on the detection pipeline 71 is used for detecting the contamination level of the purified oil, and a signal is sent when the detected contamination level reaches a set value, the apparatus 100 may be automatically shut down (e.g., the oil pumping device 26 may be shut down) and a target level of oil purification may be set by the contamination detection device 72. The pipeline 200 of the vehicle hydraulic braking system is filtered through one inlet and one outlet of the hydraulic oil, and burrs and solid impurities are removed.

And a fifth function: pressurizing and exhausting function

As shown in fig. 8, the internal oil feeding pipeline 51 is closed by the electric two-way ball valve 53, the switching pipeline 61 is connected with the main pipeline 21 by the electric three-way ball valve serving as the switching device 62, the oil pumping device 26 is started, the second flow pump 264 and the first flow pump 263 operate simultaneously, but the control reversing valve 291 is electrically connected to the upper side, so that the external oil feeding pipeline 27 is connected with the external oil discharging pipeline 28, the hydraulic oil pumped into the external oil feeding pipeline 27 by the second flow pump 264 can be discharged back to the equipment oil tank 11 through the external oil discharging pipeline 28, and at this time, only the first flow pump 263 pumps oil to the main pipeline 21; the second switch valve 32 is powered on and opened to communicate with the flushing exhaust pipeline 31, the first protection device 73 is powered off and opened, the second protection device 23 is powered off and opened, at the moment, hydraulic oil can continuously pressurize and exhaust the pipeline 200 of the vehicle hydraulic braking system connected to the flushing exhaust pipeline 31, and gas in the pipeline 200 of the vehicle hydraulic braking system can be exhausted.

Based on the above description, the apparatus 100 according to the first embodiment of the present invention may have at least the following advantages:

(1) by arranging and controlling the normally closed first protection device 73 and the normally open second protection device 23, the working state of the dirt detection device 72 is controlled, the dirt detection device 72 is prevented from working in the states of the first function, the third function, the fifth function and the like, the working time of the dirt detection device 72 in the states of the second function, the fourth function and the like can be shortened, for example, in the initial pre-washing process of the second function and the fourth function, the detection pipeline 71 is closed, so that the dirt detection device 72 does not work temporarily, and the service life of the dirt detection device 72 can be prolonged.

(2) Through the duplex pump, the second flow pump 264 and the first flow pump 263 can run simultaneously, and the oil liquid of the amplified flow pump can be discharged, so that the flushing flow flushing of different pipe diameters can be met, the large-displacement flushing and the small-displacement oil injection are realized, and the purpose of accurately controlling the oil liquid injection quantity is achieved.

(3) The internal oil filling pipeline 51 is communicated with the main pipeline 21 through an electric three-way ball valve serving as a switching device 62, meanwhile, the hydraulic oil in the oil storage tank 8 is automatically filled into the equipment oil tank 11 through the oil pumping device 26, the pipeline and the equipment oil tank 11 do not need to be detached, meanwhile, the hydraulic oil can be filtered through an upstream filter 241 and a downstream filter 242 on the main pipeline 21 in the filling process, and the equipment oil tank 11 is prevented from being polluted in the filling process.

Example two

As shown in fig. 9 to 13, the second embodiment has the same general structure as the first embodiment, and the same reference numerals are used for the same components, and the differences mainly include: (1) the oil pumping device 26 includes an oil pump 261 and a motor 262, and is not a double pump, so that the external oil inlet line 27 connected in parallel with the oil inlet line section 211, and the external oil discharge line 28 and the control device 29 associated with the external oil inlet line 27 can be omitted. (2) The switching device 62 is a manually adjustable directional control cock, and the on-off device 53 and the second suction filter 52 are eliminated from the inner filler pipe 51. (3) The first oil suction filter 63 on the switching line 61 is eliminated, and a third oil suction filter 216 is provided between the inlet end 21a of the main line 21 and the oil pump 261. In contrast, the structure of the second embodiment is more simplified, lower in cost and easier to control than the first embodiment.

The apparatus 100a according to the second embodiment of the present invention may have at least the following five functions:

function one: self priming function

As shown in fig. 9, the internal fuel feeding pipe 51 is opened by the directional control cock, the fuel pumping device 26 is started, the first on-off valve 22 is powered on and opened to communicate with the preset pipe section 212, the first protection device 73 is powered off and opened, the second protection device 23 is powered off and opened, the oil in the oil storage tank 8 is filled into the equipment oil tank 11, and meanwhile, the hydraulic oil is filtered by the third oil suction filter 216, the first upstream filter 2411, the second upstream filter 2412 and the downstream filter 242 during filling.

And a second function: self filtering function

As shown in fig. 10, the switching pipeline 61 and the main pipeline 21 are connected through the directional control cock, the oil pumping device 26 is started, the first switch valve 22 is powered on and opened, the preset pipeline section 212 is communicated, the first protection device 73 is powered on and opened, the second protection device 23 is powered on and closed, the hydraulic oil in the equipment oil tank 11 circulates along the filtering oil path, the hydraulic oil circulates and filters through the third oil suction filter 216, the first upstream filter 2411, the second upstream filter 2412 and the downstream filter 242 during the flowing process, the dirt detection device 72 on the detection pipeline 71 is used for detecting the pollution degree level of the purified oil, a signal is sent when the detected pollution degree level reaches a set value, the equipment 100a can automatically stop running (for example, the oil pumping device 26 can stop), and the target level of the purified oil can be set through the dirt detection device 72.

And function III: external filling function

As shown in fig. 11, the switching line 61 is connected with the main line 21 through the direction control cock, the oil pumping device 26 is started, the third switching valve 42 is electrically opened, the external oil filling line 41 is connected, the oil filling gun 34 at the outlet end 411b of the filling hose 411 of the external oil filling line 41 is connected with the oil tank 300 of the vehicle hydraulic brake system, and the hydraulic oil in the main line 21 is filled into the oil tank 300 of the vehicle hydraulic brake system through the external oil filling line 41. The external fuel charging line 41 is provided with a first relief valve 43 for relieving the high system pressure to prevent the hydraulic lines (such as the main line 21 and the external fuel charging line 41) from being damaged by the high pressure due to the actuation of the oil pumping device 26 when the charging hose 411 is not connected to the oil tank 300 of the hydraulic brake system of the vehicle.

And the function is four: washing and purifying function

As shown in fig. 12, the switching pipeline 61 and the main pipeline 21 are connected through the directional control cock, the oil pumping device 26 is started, the second switch valve 32 is powered on and opened, the flushing exhaust pipeline 31 is communicated, the second protection device 23 is powered on and closed, the first protection device 73 is powered on and opened, the hydraulic oil continuously passes through the third oil suction filter 216, the first upstream filter 2411, the second upstream filter 2412 and the downstream filter 242 to be circularly flushed and purified, the contamination level detection device 72 on the detection pipeline 71 is used for detecting the contamination level of the purified oil, a signal is sent when the detected contamination level reaches a set value, the apparatus 100a can automatically stop operation (for example, the oil pumping device 26 can be stopped), and the target level of the oil purification can be set through the contamination detection device 72. The pipeline 200 of the vehicle hydraulic braking system is filtered through one inlet and one outlet of the hydraulic oil, and burrs and solid impurities are removed.

And a fifth function: pressurizing and exhausting function

As shown in fig. 13, the switching pipeline 61 and the main pipeline 21 are connected through the direction control cock, the oil pumping device 26 is started, the second switch valve 32 is powered on and opened, the flushing exhaust pipeline 31 is communicated, the first protection device 73 is powered off and disconnected, the second protection device 23 is powered off and opened, at this time, the hydraulic oil can continuously pressurize and exhaust a pipeline 200 of the vehicle hydraulic braking system connected to the flushing exhaust pipeline 31, and gas in the pipeline 200 of the vehicle hydraulic braking system can be exhausted.

Based on the above description, the apparatus 100a according to the second embodiment of the present invention has at least the following advantages:

(2) The device has a self-filtering function, and can self-purify the equipment oil tank 11 when the equipment 100a is not used for a long time or the equipment oil tank 11 is polluted.

(3) The internal oil filling pipeline 51 is communicated with the main pipeline 21 through the direction control cock as the switching device 62, and the hydraulic oil in the oil storage tank 8 is automatically filled into the equipment oil tank 11 through the oil pumping device 26, so that the pipeline and the equipment oil tank 11 do not need to be disassembled, and the hydraulic oil can be filtered by the upstream filter 241 and the downstream filter 242 on the main pipeline 21 during filling, and the equipment oil tank 11 is prevented from being polluted during filling.

EXAMPLE III

As shown in fig. 14 to 18, the third embodiment has the same general structure as the second embodiment, and the same reference numerals are used for the same components, and the differences mainly include: (1) the third oil suction filter 216 provided between the inlet end 21a of the main line 21 and the oil pump 261 is omitted. (2) The upstream filter 241 is only one. (3) The external oil filling pipeline 41 is eliminated, and the flushing exhaust pipeline 31 is a multifunctional pipeline 31A which can be provided with an oil filling gun 34, so that the multifunctional pipeline 31A can be used for flushing, exhausting and filling the hydraulic braking system of the vehicle. (4) The first relief valve 43 is eliminated, the second relief valve 44 is provided on the multifunctional line 31A, the third relief valve 45 is provided on the preset line section 212, and the check valve 217 upstream of the preset line section 212 is provided on the main line 21. (5) The first and second on-off

valves

22 and 32 are eliminated, and the direction changing device 33 (e.g., a solenoid direction changing valve) is used to switch one of the preset pipe section 212 and the multi-function pipe 31A to be opened and the other to be closed. (6) The second protection device 23 is eliminated. In contrast, the structure of the third embodiment is more simplified, lower in cost and easier to control than the second embodiment.

The apparatus 100b according to the third embodiment of the present invention may have at least the following five functions:

function one: self priming function

As shown in fig. 14, the internal fuel feeding pipeline 51 is opened through the direction control cock, the oil pumping device 26 is started, the reversing device 33 is powered on, the preset pipeline section 212 is communicated, the first protection device 73 is powered off, the oil in the oil storage tank 8 is fed into the equipment oil tank 11, and meanwhile, the hydraulic oil is filtered through the upstream filter 241 and the downstream filter 242 during feeding.

And a second function: self filtering function

As shown in fig. 15, the switching pipeline 61 and the main pipeline 21 are connected through the direction control cock, the oil pumping device 26 is started, the reversing device 33 is powered on, the preset pipeline section 212 is communicated, the first protection device 73 is powered on and opened, the hydraulic oil in the equipment oil tank 11 circulates along the filtering oil path thereof, the hydraulic oil is filtered circularly through the upstream filter 241 and the downstream filter 242 during the flowing process, the dirt detection device 72 on the detection pipeline 71 is used for detecting the pollution degree level of the purified oil, a signal is sent when the detected pollution degree level reaches a set value, the equipment 100b can automatically stop the operation (for example, the oil pumping device 26 can be stopped), and the target level of the oil purification can be set through the dirt detection device 72.

And function III: external filling function

As shown in fig. 16, the switching line 61 is connected to the main line 21 by the direction control cock, the oil pumping device 26 is activated, the reversing device 33 is de-energized, the multi-function line 31A is connected, the fueling gun 34 is installed at the outlet end 311b of the first hose 311 of the multi-function line 31A, and the fueling gun 34 is connected to the tank 300 of the hydraulic brake system of the vehicle, so that the oil is supplied to the tank 300 of the hydraulic brake system of the vehicle through the connecting multi-function line 31A.

And the function is four: washing and purifying function

As shown in fig. 17, the switching pipeline 61 and the main pipeline 21 are connected through the direction control cock, the oil pumping device 26 is started, the reversing device 33 is powered off, the multifunctional pipeline 31A is communicated, the first protection device 73 is powered on and opened, the hydraulic oil continuously passes through the upstream filter 241 and the downstream filter 242 for circular flushing and purification, the dirt detection device 72 on the detection pipeline 71 is used for detecting the pollution degree level of the purified oil, a signal is sent when the detected pollution degree level reaches a set value, the device 100b can automatically stop running (for example, the oil pumping device 26 can be stopped), and the target level of oil purification can be set through the dirt detection device 72. The pipeline 200 of the vehicle hydraulic braking system is filtered through one inlet and one outlet of the hydraulic oil, and burrs and solid impurities are removed.

And a fifth function: pressurizing and exhausting function

As shown in fig. 18, the switching line 61 and the main line 21 are connected by the direction control cock, the oil pumping device 26 is started, the reversing device 33 is de-energized, the multifunctional line 31A is connected, the first protection device 73 is de-energized and disconnected, and at this time, the hydraulic oil can continuously pressurize and exhaust the line 200 of the vehicle hydraulic brake system connected to the multifunctional line 31A, and the gas in the line 200 of the vehicle hydraulic brake system can be exhausted.

Based on the above description, the apparatus 100b according to the third embodiment of the present invention has at least the following advantages:

(1) by setting and controlling the normally closed first protection device 73, the working state of the dirt detection device 72 is controlled, the dirt detection device 72 is prevented from working in the states of the first function, the third function, the fifth function and the like, the working time of the dirt detection device 72 in the states of the second function, the fourth function and the like can be shortened, for example, in the initial pre-washing process of the second function and the fourth function, the detection pipeline 71 is closed, so that the dirt detection device 72 does not work temporarily, and the service life of the dirt detection device 72 can be prolonged.

(2) The internal oil filling pipeline 51 is communicated with the main pipeline 21 through the direction control cock as the switching device 62, and the hydraulic oil in the oil storage tank 8 is automatically filled into the equipment oil tank 11 through the oil pumping device 26, so that the pipeline and the equipment oil tank 11 do not need to be disassembled, and the hydraulic oil can be filtered by the upstream filter 241 and the downstream filter 242 on the main pipeline 21 during filling, and the equipment oil tank 11 is prevented from being polluted during filling.

(3) The equipment oil tank 11 is provided with an air filter 12 for balancing the internal pressure of the equipment oil tank 11; the liquid level meter 14 is designed on the equipment oil tank 11, so that the liquid level height of the equipment oil tank 11 can be observed in real time; the equipment oil tank 11 is designed with a sewage draining outlet 15, and dirt deposited at the bottom of the equipment oil tank 11 can be cleaned without disassembling the equipment oil tank 11.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An apparatus (100) for handling a hydraulic vehicle brake system, comprising:

an equipment oil tank (11);

a main pipeline (21), wherein an inlet end (21a) and an outlet end (21b) of the main pipeline (21) are communicated to the equipment oil tank (11);

a detection pipeline (71), wherein the detection pipeline (71) is connected with a detection pipeline section (213) on the main pipeline (21) in parallel;

a dirt detection device (72), wherein the dirt detection device (72) is arranged on the detection pipeline (71); and

a first protection device (73), the first protection device (73) is arranged on the detection pipeline (71) and is used for controlling the opening and closing of the detection pipeline (71).

2. An arrangement (100) for handling a hydraulic vehicle brake system according to claim 1, characterized in that said first protection device (73) is provided upstream of said dirt detection device (72).

3. An arrangement (100) for handling a hydraulic vehicle brake system according to claim 1, characterized in that said first protection device (73) is a normally closed solenoid valve and closes said detection line (71) in the event of a loss of power.

4. The apparatus (100) for handling a hydraulic vehicle brake system according to claim 1, further comprising:

a second protection device (23), wherein the second protection device (23) is arranged on the detection pipeline section (213) and is used for controlling the opening and closing of the detection pipeline section (213).

5. The apparatus (100) for the treatment of a hydraulic vehicle braking system according to claim 4, characterized in that said second protection device (23) is a normally open solenoid valve and in the event of a loss of power opens said detection line (71).

6. The apparatus (100) for handling a hydraulic vehicle brake system according to claim 1, further comprising:

an inner filler pipe (51), an inlet end (51a) of the inner filler pipe (51) being located outside the equipment tank (11);

a switching pipeline (61), wherein the inlet end (61a) of the switching pipeline (61) extends into the equipment oil tank (11);

a switching device (62), wherein the switching device (62) is respectively connected with the outlet end (61b) of the switching pipeline (61), the inlet end (21a) of the main pipeline (21) and the outlet end (51b) of the internal fuel filling pipeline (51), and the switching device (62) is used for switching one of the switching pipeline (61) and the internal fuel filling pipeline (51) to be communicated with the inlet end (21a) of the main pipeline (21).

7. The apparatus (100) for handling a hydraulic vehicle brake system according to claim 1, further comprising:

the vehicle hydraulic brake system comprises a flushing exhaust pipeline (31), wherein the flushing exhaust pipeline (31) is connected with a preset pipeline section (212) on a main pipeline (21) in parallel, a reserved installation position (310) for connecting a pipeline (200) of the vehicle hydraulic brake system is arranged on the flushing exhaust pipeline (31), and the flushing exhaust pipeline (31) is used for flushing and exhausting the pipeline (200) of the vehicle hydraulic brake system.

8. The apparatus (100) for handling a hydraulic vehicle brake system according to claim 7, further comprising:

an inlet end (41a) of the external refueling pipeline (41) is connected to an upstream end point (212a) of the preset pipeline section (212), and an outlet end (41b) of the external refueling pipeline (41) is used for refueling a fuel tank (300) of a vehicle hydraulic braking system.

9. The device (100) for the treatment of a hydraulic vehicle brake system according to claim 7, wherein the flushing exhaust line (31) comprises a first hose (311) and a second hose (312), the inlet end (311a) of the first hose (311) communicating with the upstream end point (212a) of the preset line section (212), the outlet end (312b) of the second hose (312) communicating with the downstream end point (212b) of the preset line section (212), the outlet end (311b) of the first hose (311) being intended to be connected to an inlet of a line (200) of a hydraulic vehicle brake system, the inlet end (312a) of the second hose (312) being intended to be connected to an outlet of the line (200) of a hydraulic vehicle brake system, so that the reserved mounting location (310) is defined between the outlet end (311b) of the first hose (311) and the inlet end (312a) of the second hose (312), the outlet end (311b) of the first hose (311) is provided with a detachable oil gun (34), so that the flushing exhaust pipeline (31) is a multifunctional pipeline (31A) which is used for filling oil to an oil tank (300) of a vehicle hydraulic braking system.

10. Device (100) for handling a hydraulic braking system of a vehicle according to claim 7, characterized in that said preset section (212) is located upstream of said detection section (213), said device (100) comprising an upstream filter (241) and a downstream filter (242), said upstream filter (241) being at least one and being arranged upstream of said preset section (212), said downstream filter (242) being at least one and being arranged downstream of said detection section (213).