CN114248749A - Explosion-proof braking system - Google Patents
Explosion-proof braking system Download PDFInfo
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- CN114248749A CN114248749A CN202111623561.3A CN202111623561A CN114248749A CN 114248749 A CN114248749 A CN 114248749A CN 202111623561 A CN202111623561 A CN 202111623561A CN 114248749 A CN114248749 A CN 114248749A
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- 238000004458 analytical method Methods 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000007405 data analysis Methods 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims description 47
- 238000012545 processing Methods 0.000 claims description 21
- 230000002457 bidirectional effect Effects 0.000 claims description 16
- 239000003921 oil Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 7
- 239000010727 cylinder oil Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010835 comparative analysis Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
Abstract
The invention discloses an explosion-proof brake system, which relates to the field of brake systems. The invention realizes the recording of the braking command, the detection and the recording of the braking distance, the analysis module analyzes the recorded data to obtain the braking safety degree, and the braking safety is digitally sent to the display screen to be checked by the driver, and the data analysis module can also compare the current braking condition with the past braking condition and analyze to obtain whether the braking performance is reduced, and the analysis data is digitized and sent to the display screen module, so that the driver can more intuitively know the braking safety degree and the loss degree of the vehicle.
Description
Technical Field
The invention relates to the field of brake systems, in particular to an explosion-proof brake system.
Background
The automobile can run on the road due to the rotation of the wheels, when the automobile stops, the speed of the automobile is reduced and the automobile stops by means of the brake device on the automobile, the brake device generates friction between the brake pad and the wheel drum or the disc, kinetic energy of the automobile during running is converted into heat energy in the friction process and consumed, the brake commonly used during running of the automobile is operated by feet, so the brake is also called as foot brake, and the brake force is transmitted to the brake device of the wheels by mechanical or hydraulic pressure after a driver steps on the brake pedal to generate friction.
The existing explosion-proof brake system utilizes the foot brake, the brake block, the brake disc and the brake oil to cooperate to achieve the purpose of braking, the brake system has no prompt after the braking is finished, the analysis of the brake performance strength problem and the reminding of the safe brake distance are avoided, and good brake service can not be provided for driving, so that the explosion-proof brake system is urgently needed.
Disclosure of Invention
Based on the above, the invention aims to provide an explosion-proof brake system, and the technical problems that the existing explosion-proof brake system achieves the purpose of braking by matching a foot brake, a brake pad, a brake disc and brake oil, the brake system has no prompt after the braking is finished, has no analysis on the strength of the braking performance, has no reminding of safe braking distance, and cannot provide good braking service for driving are solved.
In order to achieve the purpose, the invention provides the following technical scheme: an explosion-proof braking system, a central processing module, which is used for a central module in a vehicle braking system, summarizing the braking feedback condition, the power supply control condition and the braking self-checking condition, analyzing and sorting the braking feedback condition, the power supply control condition and the braking self-checking condition, and then sending data to a display module for displaying;
the brake feedback module is used for receiving brake command acquisition, receiving, recording, distance detection, distance analysis, safety suggestion and problem analysis data and sending feedback information to the central processing module;
the brake self-checking module is used for monitoring and supervising each part in the brake system, summarizing monitored data and sending summarized information to the central processing module;
the display module is used for displaying the summarized information passing through the central processing module and performing interactive feedback with a driver;
the power supply control module is a module for summarizing power supply conditions in the brake system;
the signal sending module is used for sending signals in the brake system;
and the signal receiving module is used for receiving signals in the brake system.
Preferably, central processing module's output is connected with brake feedback module, display module, power control module and brake self-checking module, and brake feedback module, display module, power control module and brake self-checking module all be two-way electric connection with central processing module, central processing module and brake feedback module and brake self-checking module quality testing all electric connection have signal transmission module and signal receiving module.
Preferably, the output electric connection of brake feedback module has brake command acquisition module, brake command execution module, brake command record module, brake distance detection module, past distance analysis and comparison module, safe distance suggestion module and brake problem analysis module, and brake command acquisition module, brake command execution module, brake command record module, brake distance detection module, past distance analysis and comparison module, safe distance suggestion module and brake problem analysis module all are two-way electric connection with brake feedback module.
Preferably, the output end of the brake command acquisition module is electrically connected with an inching sensor module, the inching sensor module and the brake command acquisition module are in bidirectional electrical connection, the output end of the brake command recording module is electrically connected with a brake log uploading module, a cloud sending module and a cloud storage module, the brake log uploading module, the cloud sending module and the cloud storage module are all in bidirectional electrical connection with the brake command recording module, the output end of the brake distance detection module is electrically connected with an infrared distance sensor module, the infrared distance sensor module and the brake distance detection module are in bidirectional electrical connection, the output end of the past distance analysis comparison module is electrically connected with a cloud downloading module, a data analysis module and a data result sending module, and the cloud downloading module, the data analysis module and the data result sending module are in bidirectional electrical connection, the output end electric connection of safe distance suggestion module and brake problem analysis module has data analysis module, and data analysis module and safe distance suggestion module and brake problem analysis module all are two-way electric connection.
Preferably, the output end of the display module is electrically connected with the touch screen module, the touch instruction feedback module and the sound and picture alarm module, and the touch screen module, the touch instruction feedback module and the sound and picture alarm module are all in bidirectional electrical connection with the display module.
Preferably, the output end of the power control module is electrically connected with the power distribution module, the energy-saving module and the overload alarm module, and the power distribution module, the energy-saving module and the overload alarm module are all in bidirectional electrical connection with the power control module.
Preferably, the output electric connection of brake self-checking module has the powerless module of brake, the module is trembled in the brake, the module is not returned in the brake, the module sinks in the brake, the brake becomes soft, the module becomes hard and the steering wheel deflection module, and the powerless module of brake, the module is trembled in the brake, the module is not returned in the brake, the module sinks in the brake, the brake becomes soft, the module becomes hard and the steering wheel deflection module all is two-way electric connection with brake self-checking module.
Preferably, the output electric connection of the powerless brake module has a master cylinder pipeline pressure monitoring module and an engine interface monitoring module, and the master cylinder pipeline pressure monitoring module and the engine interface monitoring module are both in bidirectional electric connection with the powerless brake module, the output electric connection of the brake shaking module has a brake disc surface wear monitoring module, and the brake disc surface wear monitoring module and the brake shaking module are in bidirectional electric connection.
Preferably, the output electric connection of the module that does not return to the brake has brake fluid liquid level monitoring module, brake wheel cylinder, pipeline, joint department oil leak monitoring module, master cylinder, wheel cylinder operation self-checking monitoring module, and brake fluid liquid level monitoring module, brake wheel cylinder, pipeline, joint department oil leak monitoring module, master cylinder, wheel cylinder operation self-checking monitoring module all are two-way electric connection with the module that does not return to the brake, the output electric connection of the module that sinks to the brake has oil leak monitoring module, and oil leak monitoring module and the module that sinks to the brake are two-way electric connection.
Preferably, the output electric connection that the brake became soft, the module that hardens has vacuum booster self-checking module, total pump, wheel cylinder oil pressure self-checking module, brake piping self-checking module, and vacuum booster self-checking module, total pump, wheel cylinder oil pressure self-checking module, brake piping self-checking module all become soft, the module that hardens with the brake is two-way electric connection, wheel cylinder self-checking module about brake steering wheel deflection module's output electric connection has brake system, and wheel cylinder self-checking module and wheel steering wheel deflection module are two-way electric connection about the brake system.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention realizes the recording of the braking command through the arranged braking feedback module, then detects and records the braking distance, the analysis module analyzes the recorded data to obtain the braking safety degree, and sends the braking safety to the display screen in a digital way to provide the driver for checking, the data analysis module can also compare and analyze the braking situation of the time with the past braking situation to obtain whether the braking performance is reduced or not, and sends the analyzed data to the display screen module in a digital way to enable the driver to more intuitively know the braking safety degree and the loss degree of the vehicle, the safety distance suggestion module in the feedback module can give the driver safety suggestion so that the driver knows the distance at which the vehicle starts to brake and has the minimum damage degree to the vehicle, thereby prolonging the service life of the braking system, the loss is reduced;
2. the brake self-checking module is arranged to monitor and self-check the possible situations of the brake system, such as the situations of incapability of braking, brake shaking, brake non-return, brake sinking, brake softening and hardening and the deflection of the brake steering wheel, and the monitoring and monitoring functions are added to a plurality of parts of the brake system, so that the situations and problems of the brake system can find the corresponding part running situations in the self-checking module, the driver can know the parts of the brake system more fully, the problems can also find a solution to the accurate medicine administration according to the symptoms, and the safety of the brake system is improved;
3. according to the invention, the display module is arranged, so that the information fed back by the brake and the information of brake self-checking can be displayed through the display module, a driver can know the problems in the brake system more clearly and intuitively, and the interaction feeling with a vehicle driver is increased;
4. according to the invention, the part power supplies in the vehicle braking system are collected through the arranged power supply control module, so that a driver can visually check the use condition of the vehicle power supply through the display module, and the normal electricity utilization of each part in the braking system is ensured.
Drawings
FIG. 1 is a system flow diagram of the present invention;
fig. 2 is a flow chart of a brake self-test module according to the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The following describes an embodiment of the present invention based on its overall structure.
Example 1
When a vehicle is in a driving process, if braking is needed, a driver steps on a foot brake, a braking command acquisition module acquires a braking command through an inching sensor and records and uploads the braking command to a log, a braking system is started at the same time to execute the braking command in a matching manner to complete braking, a braking distance detection module starts to start, a braking sliding distance is obtained through measurement of an infrared distance sensor, the inching force and the sliding distance are combined and analyzed to obtain braking safety performance data and safety distance data of the braking and send the braking safety performance data and the safety distance data to a braking feedback module, the braking feedback module receives the data and sends the data to a central processing module through a signal sending module, the central processing module collects and arranges the received data after receiving the data, and then sends the data to a display module to display on a display screen of the display module, after the brake safety performance is analyzed, past brake data are downloaded from a cloud end and are combined and analyzed to obtain the difference between the current data and the past data, so that brake loss is obtained, the result of comparative analysis and problem data possibly existing in the brake are sent to a brake feedback module and are displayed through a display screen again, a driver can check the data, if the driver feels that the vehicle is not braked, the data can be touched through the display screen and enter a module with weak brake, at the moment, pressure monitoring data of a brake master pump pipeline and monitoring data of an engine interface appear on the display screen, the pressure data of the master pump pipeline are collected through a pressure sensor and then displayed on the display screen, the monitoring data of the engine interface are monitoring pictures, the pressure monitoring data are provided with normal values through a data analysis module, and if the comparative monitoring values are abnormal, the sound and picture alarm module gives an alarm to remind a driver of maintaining and detecting the pipeline, and the monitoring module needs the driver to judge whether the pipeline is broken or not by self.
Example 2
When a vehicle is in a driving process, if braking is needed, a driver steps on a foot brake, a braking command acquisition module acquires a braking command through an inching sensor and records and uploads the braking command to a log, a braking system is started at the same time to execute the braking command in a matching manner to complete braking, a braking distance detection module starts to start, a braking sliding distance is obtained through measurement of an infrared distance sensor, the inching force and the sliding distance are combined and analyzed to obtain braking safety performance data and safety distance data of the braking and send the braking safety performance data and the safety distance data to a braking feedback module, the braking feedback module receives the data and sends the data to a central processing module through a signal sending module, the central processing module collects and arranges the received data after receiving the data, and then sends the data to a display module to display on a display screen of the display module, after the brake safety performance is analyzed, past brake data are downloaded from a cloud end and are combined and analyzed to obtain the difference between the current data and the past data, so that brake loss is obtained, the result of comparative analysis and possible problem data of the brake are sent to a brake feedback module and are displayed through a display screen again, a driver checks the difference, if the driver feels that the vehicle brake does not return, the difference can be touched by the display screen and enters a module which does not return, at the moment, the brake fluid level monitoring data, brake sub-pumps, pipelines and joint oil leakage monitoring pictures and brake master pump and sub-pump operation self-checking data appear on the display screen, the brake fluid is detected by a fluid level sensor and is sent to the display module, the display screen displays the detection data, and the oil leakage monitoring pictures need the driver to judge whether oil leakage occurs or not by himself, the data analysis module gives normal values for self-checking monitoring data, and if the monitoring values are abnormal, the sound and picture alarm module gives an alarm to remind a driver of maintaining and detecting a brake master cylinder and a brake slave cylinder.
Example 3
When a vehicle is in a driving process, if braking is needed, a driver steps on a foot brake, a braking command acquisition module acquires a braking command through an inching sensor and records and uploads the braking command to a log, a braking system is started at the same time to execute the braking command in a matching manner to complete braking, a braking distance detection module starts to start, a braking sliding distance is obtained through measurement of an infrared distance sensor, the inching force and the sliding distance are combined and analyzed to obtain braking safety performance data and safety distance data of the braking and send the braking safety performance data and the safety distance data to a braking feedback module, the braking feedback module receives the data and sends the data to a central processing module through a signal sending module, the central processing module collects and arranges the received data after receiving the data, and then sends the data to a display module to display on a display screen of the display module, after the braking safety performance analysis, past braking data is downloaded from the cloud and is combined and analyzed to obtain the difference between the current data and the past data, thereby obtaining the brake loss, sending the result of the comparative analysis and the problem data possibly existing in the brake to the brake feedback module, displaying the result again through the display screen, checking the result by a driver, if the driver feels that the brake of the vehicle is soft and hard, the driver can perform point touch through the display screen and enter the module for softening and hardening the brake of the vehicle, the self-checking data of the vacuum booster, the master cylinder and the slave cylinder and the self-checking data of the brake pipeline appear on the display screen at the moment, the self-checking monitoring data is given out a normal value by the data analysis module, if the comparison monitoring value is abnormal, the sound picture alarm module gives an alarm to remind a driver of maintaining and checking the vacuum booster, the master cylinder and the brake pipeline.
The working principle is as follows: when the automobile braking system is used, the power supply control module provides electric energy for the automobile braking system to enable the automobile braking system to run normally, if a driver needs to brake during running of the automobile, the driver treads a foot brake, the braking command acquisition module acquires a braking command through the inching sensor and records and uploads the braking command to the log, the braking system is started to execute the braking command to complete braking, the braking distance detection module starts to start the braking distance detection module after issuing the braking command, the braking force and the sliding distance are measured through the infrared distance sensor to obtain braking safety performance data and safety distance data of the braking, the braking safety performance data and the safety distance data are sent to the braking feedback module and sent to the display module through the central processing module and displayed on the display module, and after the braking safety performance is analyzed, past braking data are downloaded from the cloud and are analyzed in a combined manner, the difference between the current data and the past data is obtained, so that the brake loss is obtained, the result of contrastive analysis and the problem data possibly existing in the brake are sent to a brake feedback module, the display module is used for displaying, the driver checks the data, if the driver feels that the vehicle brake is in problem, the display module can be used for point contact to select the problems including weakness of the brake, brake shaking, brake non-return, brake sinking, brake softening, hardening, brake steering wheel deflection and the like, the data can enter the corresponding module according to the corresponding problems, the monitoring picture and the data of each part are selected to be checked, the data analysis system gives a normal value and a deviation value, so that whether the corresponding part has the problem is judged, the specific problems are quickly found, the maintenance can be accurately carried out, the judgment time is shortened, and the driving safety is improved, those matters not described in detail in this specification are well known in the art to which the skilled person is aware.
The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. An explosion-proof braking system, comprising:
the central processing module is used for a central module in the vehicle braking system, summarizing the braking feedback condition, the power supply control condition and the braking self-checking condition, analyzing and sorting the braking feedback condition, the power supply control condition and the braking self-checking condition, and then sending the data to the display module for displaying;
the brake feedback module is used for receiving brake command acquisition, receiving, recording, distance detection, distance analysis, safety suggestion and problem analysis data and sending feedback information to the central processing module;
the brake self-checking module is used for monitoring and supervising each part in the brake system, summarizing monitored data and sending summarized information to the central processing module;
the display module is used for displaying the summarized information passing through the central processing module and performing interactive feedback with a driver;
the power supply control module is a module for summarizing power supply conditions in the brake system;
the signal sending module is used for sending signals in the brake system;
and the signal receiving module is used for receiving signals in the brake system.
2. An explosion-proof braking system according to claim 1, characterized in that: the output of central processing module is connected with brake feedback module, display module, power control module and brake self-checking module, and brake feedback module, display module, power control module and brake self-checking module all be two-way electric connection with central processing module, central processing module and brake feedback module and the all electric connection of brake self-checking module quality inspection have signal transmission module and signal reception module.
3. An explosion-proof braking system according to claim 1, characterized in that: the output electric connection of brake feedback module has brake command acquisition module, brake command execution module, brake command record module, brake distance detection module, past distance analysis contrast module, safe distance suggestion module and brake problem analysis module, and brake command acquisition module, brake command execution module, brake command record module, brake distance detection module, past distance analysis contrast module, safe distance suggestion module and brake problem analysis module all are two-way electric connection with brake feedback module.
4. An explosion-proof braking system according to claim 3, characterized in that: the output end of the brake command acquisition module is electrically connected with an inching sensor module, the inching sensor module and the brake command acquisition module are in bidirectional electrical connection, the output end of the brake command recording module is electrically connected with a brake log uploading module, a cloud sending module and a cloud storage module, the brake log uploading module, the cloud sending module and the cloud storage module are all in bidirectional electrical connection with the brake command recording module, the output end of the brake distance detection module is electrically connected with an infrared distance sensor module, the infrared distance sensor module and the brake distance detection module are in bidirectional electrical connection, the output end of the past distance analysis comparison module is electrically connected with a cloud downloading module, a data analysis module and a data result sending module, and the cloud downloading module, the data analysis module and the data result sending module are in bidirectional electrical connection with the past distance analysis comparison module, the output end electric connection of safe distance suggestion module and brake problem analysis module has data analysis module, and data analysis module and safe distance suggestion module and brake problem analysis module all are two-way electric connection.
5. An explosion-proof braking system according to claim 1, characterized in that: the output end of the display module is electrically connected with the touch screen module, the touch instruction feedback module and the sound and picture alarm module, and the touch screen module, the touch instruction feedback module and the sound and picture alarm module are all in bidirectional electrical connection with the display module.
6. An explosion-proof braking system according to claim 1, characterized in that: the output end of the power control module is electrically connected with the power distribution module, the energy-saving module and the overload alarm module, and the power distribution module, the energy-saving module and the overload alarm module are all in bidirectional electrical connection with the power control module.
7. An explosion-proof braking system according to claim 1, characterized in that: the output electric connection of brake self-checking module has the powerless module of brake, the module is trembled in the brake, the not return module of brake, the module sinks in the brake, the brake becomes soft, the module hardens and the steering wheel deflection module of braking, and the powerless module of brake, the module is trembled in the brake, the not return module of brake, the module sinks in the brake, the brake becomes soft, the module hardens and the steering wheel deflection module of braking all are two-way electric connection with the self-checking module of braking.
8. An explosion-proof braking system according to claim 7, characterized in that: the output electric connection of the powerless brake module has a brake master cylinder pipeline pressure monitoring module and an engine interface monitoring module, the brake master cylinder pipeline pressure monitoring module and the engine interface monitoring module are both in bidirectional electric connection with the powerless brake module, the output electric connection of the brake shaking module has a brake disc surface wear monitoring module, and the brake disc surface wear monitoring module and the brake shaking module are in bidirectional electric connection.
9. An explosion-proof braking system according to claim 7, characterized in that: the output electric connection of the module that does not return to brake has brake fluid liquid level monitoring module, brake wheel cylinder, pipeline, joint department oil leak monitoring module, master cylinder, wheel cylinder operation self-checking monitoring module, and brake fluid liquid level monitoring module, brake wheel cylinder, pipeline, joint department oil leak monitoring module, master cylinder, wheel cylinder operation self-checking monitoring module all are two-way electric connection with the module that does not return to brake, the output electric connection of the module that sinks to brake has oil leak monitoring module, and oil leak monitoring module and the module that sinks to brake are two-way electric connection.
10. An explosion-proof braking system according to claim 7, characterized in that: the output electric connection of brake becoming soft, hardening module has vacuum booster self-checking module, master cylinder, wheel cylinder oil pressure self-checking module, brake piping self-checking module, and vacuum booster self-checking module, master cylinder, wheel cylinder oil pressure self-checking module, brake piping self-checking module all become soft with the brake, the hardening module is two-way electric connection, wheel cylinder self-checking module about brake steering wheel deflection module's output electric connection has brake system, and wheel cylinder self-checking module and wheel cylinder deflection module are two-way electric connection about the brake system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111623561.3A CN114248749A (en) | 2021-12-28 | 2021-12-28 | Explosion-proof braking system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111623561.3A CN114248749A (en) | 2021-12-28 | 2021-12-28 | Explosion-proof braking system |
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| CN114248749A true CN114248749A (en) | 2022-03-29 |
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| CN202111623561.3A Pending CN114248749A (en) | 2021-12-28 | 2021-12-28 | Explosion-proof braking system |
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| CN (1) | CN114248749A (en) |
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2021
- 2021-12-28 CN CN202111623561.3A patent/CN114248749A/en active Pending
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