CN104260717B - The improper brake alarm device of semitrailer - Google Patents
The improper brake alarm device of semitrailer Download PDFInfo
- Publication number
- CN104260717B CN104260717B CN201410501138.XA CN201410501138A CN104260717B CN 104260717 B CN104260717 B CN 104260717B CN 201410501138 A CN201410501138 A CN 201410501138A CN 104260717 B CN104260717 B CN 104260717B
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- Prior art keywords
- semitrailer
- pressure
- chamber
- pressure switch
- brake
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- 241000009298 Trigla lyra Species 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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
-
- 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
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/88—Pressure measurement in brake systems
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention provides a kind of improper brake alarm device of semitrailer, it includes first pressure switch, second pressure switch, warning circuit and power supply, the air pressure detection mouth of the first pressure switch connects the control piper of semitrailer, the two-chamber brake chamber supply end of the air pressure detection mouth connection semitrailer of the second pressure switch, the power supply, a pair of normally-closed contacts of first pressure switch, a pair of normally opened contacts of second pressure switch and the warning circuit constitute alarm circuit.The improper brake alarm device of the semitrailer has design science, rational in infrastructure, installation simple, easy to use and timely advantage of alarming.
Description
Technical field
The present invention relates to a kind of brake alarm device, specifically, a kind of improper brake alarm dress of semitrailer is relate to
Put.
Background technology
Standard specifies that semitrailer must have dual-line braking system independently, another when certain partial failure all the way
Road still can service braking, it is ensured that traffic safety.In order to ensure traffic safety, semitrailer must install the two-chamber for meeting parking braking
Brake chamber, but the not all vehicle bridge of most of semitrailers is fitted with two-chamber brake chamber.
Occur supply air line gas leakage when driving or continuous brake causes semitrailer gas receiver pressure double less than releasing
During pressure needed for the brake chamber spring braking of chamber, installing the vehicle bridge of two-chamber brake chamber carries out improper braking, and tractor
Do not braked then with the vehicle bridge that two-chamber brake chamber is fitted without in semitrailer.When there is above-mentioned situation, driver is difficult to find, past
Tire spontaneous combustion is caused toward semi-mounted wheel rim can be caused to play the more serious meeting of heat.
Existing type of alarm is the increase thermoinduction warning device on vehicle bridge wheel rim, not only installs complicated and effect not
It is good, it is impossible to find that the improper braking of semitrailer, the heating of vehicle bridge wheel rim could find semi-mounted Chefei after reaching temperature very high in time
Normal brake application, now improper braking has resulted in damage to semitrailer, reduces semitrailer performance and used life.
In order to solve the problem present on, people are seeking a kind of preferable technical solution always.
The content of the invention
The purpose of the present invention is directed to the deficiencies in the prior art, so as to provide a kind of design science, rational in infrastructure, installation letter
Single, the easy to use and timely improper brake alarm device of semitrailer of alarming.
To achieve these goals, the technical solution adopted in the present invention is：A kind of improper brake alarm dress of semitrailer
Put, it includes first pressure switch, second pressure switch, warning circuit and power supply, the air pressure detection of the first pressure switch
The control piper of mouth connection semitrailer, the two-chamber brake chamber of the air pressure detection mouth connection semitrailer of the second pressure switch is supplied
Gas end, the power supply, the first pressure switch a pair of normally-closed contacts, the second pressure switch a pair of normally opened contacts and
The warning circuit constitutes alarm circuit.
Based on above-mentioned, in the control piper of the semitrailer during gas pressure change, a pair of the first pressure switch
Normally-closed contact disconnects；The gas pressure at the two-chamber brake chamber supply end of the semitrailer is released less than the two-chamber brake chamber
During pressure needed for spring braking, a pair of normally opened contacts closure of the second pressure switch.
Based on above-mentioned, the power supply is vehicular power-bottle, and the vehicular power-bottle is alarm circuit confession by reduction voltage circuit
Electricity.
Based on above-mentioned, loudspeaker are provided with the warning circuit.
Based on above-mentioned, warning lamp is provided with the warning circuit.
The present invention has prominent substantive distinguishing features and marked improvement compared with the prior art, and specifically, the present invention is different
Alarmed in traditional vehicle bridge wheel rim temperature detection, the first pressure switch is according to the reality in the semitrailer control piper for detecting
When gas pressure change acted, second pressure switch is according to real-time in the two-chamber brake chamber for detecting
The change of gas pressure is acted, and when two pressure switches are closed at, alarm circuit is connected, timely alert notice department
Machine, semitrailer is in improper on-position, is easy to driver to find the anomalies such as gas leakage in time；Compared to traditional alarm side
Formula, simple structure, alarm are timely, can in time notify driver when the improper braking of semitrailer occurs, and reduce vehicle damage,
Extension vehicle service life；It has design science, rational in infrastructure, installation simple, easy to use and timely advantage of alarming.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the attachment structure schematic diagram of the present invention and semitrailer brake system in embodiment 1.
Fig. 3 is the attachment structure schematic diagram of the present invention and semitrailer brake system in embodiment 2.
Specific embodiment
Below by specific embodiment, technical scheme is described in further detail.
Embodiment 1
As depicted in figs. 1 and 2, the improper brake alarm device of a kind of semitrailer, it includes first pressure switch 2, second
Pressure switch 3, warning circuit 4 and power supply 1.The improper brake alarm device of the semitrailer is arranged in semitrailer brake system,
Semitrailer brake system includes supply air line 6, control piper 5, emergency relay valve 7, ABS systems 10, single-chamber brake chamber 8, double
Chamber brake chamber 9, semitrailer gas receiver 11.
The air pressure detection mouth of the first pressure switch 2 connects the control piper 5 of semitrailer, the second pressure switch 3
Air pressure detection mouth connection semitrailer the supply of two-chamber brake chamber 9 end, the power supply 1, first pressure switch a pair of 2
Normally-closed contact, a pair of normally opened contacts of second pressure switch 3 and the warning circuit 4 constitute alarm circuit.
When the semitrailer brake system does not connect tractor, semitrailer brake system does not connect source of the gas, and alarms back
Road is not connected to power supply.Now the pressure in the two-chamber brake chamber 9 releases spring braking institute less than the two-chamber brake chamber
The pressure for needing, semitrailer is in parking braking state.
When semitrailer connects tractor, now semitrailer brake system connection source of the gas, and alarm circuit connection power supply, institute
State supply air line 6 to be supplied, gas enters the two-chamber brake chamber 9, and enters the semitrailer by emergency relay valve 7
In gas receiver 11, when the gas pressure in the two-chamber brake chamber 9 releases spring braking institute more than the two-chamber brake chamber
The pressure for needing, semitrailer releases spring braking.
Heretofore described first pressure switch 2 is used to detect the gas pressure in the control piper 5, the control piper
Gas pressure normality in 5 is atmospheric pressure, and the first pressure switch 2 is in normally off, when the first pressure switchs 2
During gas pressure change in the control piper 5 of detection, first pressure switch 2 is acted, and a pair of normally-closed contacts disconnect.
The second pressure switch 3 is used to detect the gas pressure in the two-chamber brake chamber 9, the two-chamber under normality
Gas pressure in brake chamber 9 is more than the pressure needed for two-chamber brake chamber releasing spring braking, the second pressure
Switch 3 is in normally open, when the second pressure switchs the two-chamber brake chamber supply end of 3 semitrailers for detecting
When gas pressure is less than the pressure needed for the two-chamber brake chamber releases spring braking, a pair of the second pressure switch are normal
Open the closing of contact.
Pressure switch described in the present embodiment is single-pole double throw pressure switch, and the first pressure switch 2 includes public touching
Point S, contact S1, contact S2, common S and contact S1Constitute a pair of normally-closed contacts；The second pressure switch 3 includes public
Contact K, contact K1, contact K2, common K and contact K2Constitute a pair of normally opened contacts.The output end connection institute of the power supply 1
State the common S, the normally-closed contact S in the first pressure switch 2 in first pressure switch 21Connect the second pressure
Common K, the normally opened contact K of the second pressure switch 3 in switch 32Connect the input of the power supply 1, the report
Alert circuit 4 is connected between the power supply 1 and first pressure switch 2.
The warning circuit 4 only when first pressure switch 2 and second pressure switch 3 are closed at, enters
Row alarm；Ensure that alarm is accurate.
In the present embodiment, the power supply 1 is vehicular power-bottle, and the vehicular power-bottle directly can power to the alarm circuit；
In order to the normal work and vehicular power-bottle described in safe operation of protecting the warning circuit 4 are alarmed back by reduction voltage circuit for described
Road powers, and the output voltage of the vehicular power-bottle is controlled using the reduction voltage circuit.
For the ease of notifying driver in time, loudspeaker are set in the warning circuit 4.It should be noted that in other embodiments
Described in warning lamp can be set in warning circuit alarmed；Also can loudspeaker be set simultaneously and indicator lamp is alarmed；According to need
Different type of alarms are set, driver is notified in time.
Described improper braking refers to that after tractor connection, in the process of moving, the two-chamber is braked in the present invention
When air chamber 9 is less than the pressure needed for the two-chamber brake chamber releases spring braking due to gas pressure, start spring braking；Bullet
Spring braking must refrain from using during semitrailer traveling.
As shown in Fig. 2 the improper brake alarm device operation principle of the semitrailer is as follows：
First, normal condition, during traveling, gas pressure is one of first pressure switch 2 described in normality in the control piper 5
Normally-closed contact is closed；The air pressure that now the second pressure switch 3 is detected releases spring more than the two-chamber brake chamber
Pressure needed for braking, a pair of normally opened contacts closure of the second pressure switch 3, whole circuit disconnects, the warning circuit 4
Do not alarm.
During brake, gassy in the control piper 5, the first pressure switch 2 is detected in the control piper 5
Gas pressure change, a pair of normally opened contacts closure of the first pressure switch 2, now no matter second pressure switch 3 is in assorted
State, whole circuit is disconnected, and the warning circuit 4 is not alarmed.When avoiding normal braking, false alarm.
2nd, abnormality, if during traveling, the gas leakage of the supply air line 6 causes the supply air line 6 and described pair
Pressure declines in chamber brake chamber 9, when pressure releases spring system less than the two-chamber brake chamber in the two-chamber brake chamber 9
Required pressure is moved, a pair of normally-closed contacts closure of the second pressure switch 3, whole alarm circuit is connected, the alarm electricity
Road 4 is alarmed, and notifies the improper braking of driver's semitrailer.
Using two pressure switches to the air pressure in the control piper 5 and the two-chamber brake chamber 9 in the present embodiment
Real-time detection is carried out, by detecting the pressure condition of the supply air line 6 and the two-chamber brake chamber 9 in time, semi-mounted is judged
Whether car is improper braking, when occurring abnormal, can in time find and alarm.
The improper brake alarm device of the semitrailer has the advantages that：Semitrailer is improper in solving driving conditions
Braking, it is impossible to the problem for finding in time.Alarm is timely, and driver is notified in time, carries out troubleshooting, it is to avoid improper braking and draw
Abnormal tyre abrasion, reduction vehicle damage and the extension vehicle service life for rising.Simple structure, it is easily installed.
Embodiment 2
The present embodiment is differred primarily in that with embodiment 1：Supply of the supply air line to the two-chamber brake chamber
Mode is different.It is specific different as shown in figure 3, the supply air line 6 is supplied, gas enters into and through emergency relay valve 7 and enters
Enter in the semitrailer gas receiver 11, then supplied to the two-chamber brake chamber 9 by the semitrailer gas receiver 11.
Pressure needed for the gas pressure in the two-chamber brake chamber 9 releases spring braking more than the two-chamber brake chamber, half
Trailer releases spring braking.
Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to preferred embodiment to the present invention, and those of ordinary skill in the art should be understood：Still
Specific embodiment of the invention can be modified or equivalent is carried out to some technical characteristics；Without deviating from this hair
The spirit of bright technical scheme, it all should cover in the middle of claimed technical scheme scope of the invention.
Claims (4)
1. the improper brake alarm device of a kind of semitrailer, it is characterised in that：It includes that first pressure switch, second pressure are opened
Pass, warning circuit and power supply, the air pressure detection mouth of the first pressure switch connect the control piper of semitrailer, second pressure
The two-chamber brake chamber supply end of the air pressure detection mouth connection semitrailer of power switch, what the power supply, the first pressure were switched
A pair of normally-closed contacts, a pair of normally opened contacts of second pressure switch and the warning circuits constitute alarm circuit；Described half
In the control piper of trailer during gas pressure change, a pair of normally-closed contacts of the first pressure switch disconnect；The semitrailer
Two-chamber brake chamber supply end gas pressure less than the two-chamber brake chamber release spring braking needed for pressure when, institute
State a pair of normally opened contacts closure of second pressure switch.
2. the improper brake alarm device of semitrailer according to claim 1, it is characterised in that：The power supply is vehicle mounted electric
Bottle, the vehicular power-bottle is by reduction voltage circuit for the alarm circuit is powered.
3. the improper brake alarm device of semitrailer according to claim 2, it is characterised in that：Set in the warning circuit
It is equipped with loudspeaker.
4. the improper brake alarm device of semitrailer according to claim 2, it is characterised in that：Set in the warning circuit
It is equipped with warning lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410501138.XA CN104260717B (en) | 2014-09-26 | 2014-09-26 | The improper brake alarm device of semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410501138.XA CN104260717B (en) | 2014-09-26 | 2014-09-26 | The improper brake alarm device of semitrailer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104260717A CN104260717A (en) | 2015-01-07 |
| CN104260717B true CN104260717B (en) | 2017-06-16 |
Family
ID=52152354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410501138.XA Active CN104260717B (en) | 2014-09-26 | 2014-09-26 | The improper brake alarm device of semitrailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104260717B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251967A (en) * | 1992-03-25 | 1993-10-12 | Allied-Signal Inc. | Fluid pressure braking system with low pressure warning mechanism |
| US6702400B1 (en) * | 2000-07-19 | 2004-03-09 | Bendix Commercial Vehicle Systems Llc | School bus door/service brake interlock retrofit system |
| CN103072561A (en) * | 2013-02-07 | 2013-05-01 | 郭玉 | Parking braking releasing device for automobile |
| CN203047247U (en) * | 2013-01-14 | 2013-07-10 | 深圳职业技术学院 | Automobile and brake failure early-warning device thereof |
| CN203211298U (en) * | 2013-04-28 | 2013-09-25 | 宜宾三江机械有限责任公司 | Trailer tire-skidding monitoring device |
| CN204161355U (en) * | 2014-09-26 | 2015-02-18 | 驻马店中集华骏车辆有限公司 | The improper brake alarm device of superimposed trailer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020147072A1 (en) * | 2001-04-10 | 2002-10-10 | Bendix Commercial Vehicle Systems Llc | Destructive vehicle operation prevention system |
| JP4420455B2 (en) * | 2004-10-22 | 2010-02-24 | 日産ディーゼル工業株式会社 | Brake air failure notification device |
-
2014
- 2014-09-26 CN CN201410501138.XA patent/CN104260717B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251967A (en) * | 1992-03-25 | 1993-10-12 | Allied-Signal Inc. | Fluid pressure braking system with low pressure warning mechanism |
| US6702400B1 (en) * | 2000-07-19 | 2004-03-09 | Bendix Commercial Vehicle Systems Llc | School bus door/service brake interlock retrofit system |
| CN203047247U (en) * | 2013-01-14 | 2013-07-10 | 深圳职业技术学院 | Automobile and brake failure early-warning device thereof |
| CN103072561A (en) * | 2013-02-07 | 2013-05-01 | 郭玉 | Parking braking releasing device for automobile |
| CN203211298U (en) * | 2013-04-28 | 2013-09-25 | 宜宾三江机械有限责任公司 | Trailer tire-skidding monitoring device |
| CN204161355U (en) * | 2014-09-26 | 2015-02-18 | 驻马店中集华骏车辆有限公司 | The improper brake alarm device of superimposed trailer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104260717A (en) | 2015-01-07 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Zhonghua Inventor after: Zhu Aiping Inventor after: Liu Sitao Inventor after: Dong Huazhou Inventor after: Li Chenshi Inventor after: Han Yueqin Inventor before: Shi Zhonghua Inventor before: Zhu Aiping Inventor before: Liu Sitao Inventor before: Dong Huazhou |
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| GR01 | Patent grant |