CN113799748A - Loading and unloading brake interlocking system of liquid tank semitrailer - Google Patents
Loading and unloading brake interlocking system of liquid tank semitrailer Download PDFInfo
- Publication number
- CN113799748A CN113799748A CN202010534316.4A CN202010534316A CN113799748A CN 113799748 A CN113799748 A CN 113799748A CN 202010534316 A CN202010534316 A CN 202010534316A CN 113799748 A CN113799748 A CN 113799748A
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- China
- Prior art keywords
- air
- valve
- brake
- switch
- pneumatic control
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/22—Tank vehicles
- B60P3/224—Tank vehicles comprising auxiliary devices, e.g. for unloading or level indicating
- B60P3/2245—Adaptations for loading or unloading
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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
- B60T17/002—Air treatment devices
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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
- B60T17/002—Air treatment devices
- B60T17/008—Silencer devices
Abstract
The invention provides a loading and unloading brake interlocking system of a liquid tank semitrailer, which comprises a normally closed type pneumatic control valve, a pneumatic control switch, a brake air chamber, an air storage cylinder and a discharge valve, wherein the air inlet end of the pneumatic control valve is connected with the air outlet end of the brake air chamber, the air outlet end of the pneumatic control valve can exhaust air, the pneumatic end of the pneumatic control valve is connected with the air outlet end of the pneumatic control switch, the air inlet end of the pneumatic control switch is connected with the air storage cylinder, the other air outlet end of the pneumatic control switch is connected with the discharge valve, and the brake air chamber is used for enabling the liquid tank semitrailer to be in a brake state when preset air pressure is not reached in the brake air chamber. The invention effectively solves the problem of low safety during unloading of the oil tank semitrailer in the prior art.
Description
Technical Field
The invention belongs to the technical field of liquid tank semitrailer safety, and particularly relates to a loading and unloading brake interlocking system of a liquid tank semitrailer.
Background
The tank semitrailer is mainly used for road transportation of flammable, explosive, toxic or corrosive liquid dangerous chemicals, and once leakage occurs, the tank semitrailer seriously endangers road traffic safety and life and property safety of people. The higher the safety factor is, the smaller the leakage risk is, and the safer the driving and the operation are.
When the existing liquid tank semitrailer unloads materials, the seabed valve is the only unloading opening, and the seabed valve can only be simply controlled to be closed through the pneumatic control switch. Therefore, the design safety factor is lower, and the design safety factor is embodied in the following two aspects:
firstly, during the loading and unloading operation of the vehicle, if the hand brake is not pulled, the vehicle can slide, the loading and unloading pipeline is torn, the personal safety of operators is endangered, the medium leakage is caused, and major safety accidents are easily caused.
Secondly, after the vehicle loading and unloading operation is completed, if the subsea valve is not effectively closed due to the error or forgetting of an operator, the medium in the tank enters the unloading pipeline system in the running process, and once the leakage is caused by collision, the serious safety accidents such as environmental pollution or explosion and deflagration are easily caused.
Therefore, the development of the discharging system with high safety performance has very important significance.
The invention content is as follows:
the invention provides a loading and unloading brake interlocking system of a liquid tank semitrailer based on the defects. The invention effectively solves the problem of low safety of the existing discharging system of the fluid tank semitrailer.
The invention is realized by the following technical scheme:
the utility model provides a liquid tank semitrailer loads and unloads braking interlocking system, includes normal close formula gas accuse valve, gas accuse switch, brake chamber, gas receiver, discharge valve, the inlet end of gas accuse valve with the end of giving vent to anger of brake chamber is connected, but the end of giving vent to anger of gas accuse valve exhausts, the pneumatic end of gas accuse valve with the end of giving vent to anger of gas accuse switch is connected, the inlet end of gas accuse switch with the gas receiver is connected, another end of giving vent to anger of gas accuse switch is connected with the discharge valve, brake chamber is used for when not reaching preset atmospheric pressure in brake chamber the liquid tank semitrailer is in brake state.
Further, the pneumatic control valve is a two-position two-way pneumatic control valve.
Furthermore, an oil-water separator is arranged between the air inlet end of the air control switch and the air storage cylinder.
Furthermore, the air outlet end of the air control valve is connected with an exhaust type silencer.
Furthermore, the pneumatic control switch is a pneumatic control combination switch, the pneumatic control combination switch comprises a main control switch and a sub-control switch, the air inlet end of the main control switch is connected with the air reservoir, the air outlet end of the main control switch is connected with the pneumatic end of the pneumatic control valve, and the air outlet end of the sub-control switch is connected with the discharge valve.
Further, the discharge valve comprises an air control part and a valve body, the air control part is connected with the valve body through an air path, the air control part is a normally closed two-position two-way valve, and the air control end of the normally closed two-position two-way valve is connected with the other air outlet end of the air control switch.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) the pneumatic control brake system is realized by arranging the pneumatic control valve between the discharge valve and the brake air chamber in the brake system, when the discharge valve is opened for discharging, the gas in the brake air chamber can be continuously discharged from the gas outlet end of the pneumatic control valve, so that the semitrailer is ensured to be always in a brake state, and the safety during discharging is improved.
(2) According to the invention, the oil-water separator is arranged between the air inlet end of the pneumatic control switch and the air storage cylinder, so that compressed air in the air storage cylinder can be filtered.
(3) According to the invention, the exhaust muffler is connected to the air outlet end of the pneumatic control valve, so that the exhaust noise can be reduced.
(4) The air control switch is set to be an air control combined switch and comprises a main control switch and a sub-control switch, the sub-control switch can be opened after the main control switch is opened and air is supplied to the air control valve, so that the semi-trailer can be guaranteed to be in a braking state and can carry out unloading action, further safety is guaranteed, after unloading is finished, the sub-control valve and the main control valve are closed, the air control valve can be reset to be in a normally closed state, air can be slowly stored in the brake air chamber, and the semi-trailer can be unlocked to brake after air pressure reaches a certain degree. The design realizes double safety protection of discharging and discharging completion.
Description of the drawings:
FIG. 1 is a pneumatic schematic diagram according to an embodiment of the present invention;
FIG. 2 is a schematic view of a connection structure between an ABS and a pneumatic control system of a sea bottom valve of a semitrailer according to an embodiment of the present invention;
fig. 3 is a schematic top view of the installation of the object on the tank according to an embodiment of the present invention.
Description of reference numerals:
the brake system comprises a 1-double release valve, a 2-oil drain valve, a 3-oil-water separator, a 4-pneumatic control combination switch, a 5-normally closed two-position two-way pneumatic control valve, a 6-semitrailer ABS brake assembly, a 7-brake air chamber, an 8-air storage cylinder, a 9-subsea valve, a 901-subsea valve pneumatic control part, a 902-subsea valve body, a 10-emergency release valve, a 101-emergency release valve pneumatic control part, an 11-exhaustible silencer and a 12-relay valve.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be given below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a liquid tank semitrailer loads and unloads braking interlocking system, includes normal close formula gas accuse valve, gas accuse switch, brake chamber, gas receiver, discharge valve, the inlet end of gas accuse valve with the end of giving vent to anger of brake chamber is connected, but the end of giving vent to anger of gas accuse valve exhausts, the pneumatic end of gas accuse valve with the end of giving vent to anger of gas accuse switch is connected, the inlet end of gas accuse switch with the gas receiver is connected, another end of giving vent to anger of gas accuse switch is connected with the discharge valve, brake chamber is used for when not reaching preset atmospheric pressure in brake chamber the liquid tank semitrailer is in brake state.
The following description is made through a specific embodiment, and as shown in fig. 1, the system includes a normally closed two-position two-way pneumatic control valve 5, a pneumatic combination switch 4, a brake air chamber 7, an air reservoir 8, and a subsea valve 9, where the subsea valve 9 includes: sea chest valve gas accuse part 901 and sea chest valve body 902, sea chest valve gas accuse part 901 and sea chest valve body 902 pass through the gas circuit and connect, gas accuse combination switch 4 includes: the air inlet end of the normally closed two-position two-way air control valve is connected with the air outlet end of the brake air chamber, the air outlet end of the normally closed two-position two-way air control valve can exhaust to the outside and can also be connected with an exhaust type silencer 11 so as to further reduce noise caused by exhaust, the pneumatic end of the normally closed two-position two-way air control valve is connected with one end of a three-way pipe, the other two ends of the three-way pipe are connected with the two air outlet ends of the main control switch of the air control combination switch, the third air outlet end of the main control switch is connected with an emergency release valve air control part 101 of an emergency release valve 10, the air inlet end of the main control switch is connected with the air storage cylinder, an oil-water separator 3 can also be arranged between the air inlet end of the main control switch and the air storage cylinder so as to ensure the cleanness of compressed air entering the air control combination switch, and the air outlet end of the sub-control switch is connected with a sea bottom air control valve part 901, the subsea valve pneumatic control portion 901 may be a normally closed two-position two-way pneumatic control valve.
And when the air pressure in the brake chamber does not reach the preset air pressure value, the liquid tank semi-trailer is in a braking state. When the semitrailer brake fluid tank is used, the main control switch of the air control combination switch 4 is firstly switched on, at the moment, compressed air in the air storage cylinder 8 enters the normally closed two-position two-way air control valve 5 through a pipeline and an air outlet channel of the main control switch, the normally closed two-position two-way air control valve 5 moves to a passage channel under the action of air pressure, at the moment, air in the brake air chamber 7 is discharged through an air outlet of the normally closed two-position two-way air control valve 5, and the semitrailer of the fluid tank is in a braking state; the sub-control switch can be turned on only after the main control switch is turned on according to the characteristics of the pneumatic control combination switch 4, and the subsea valve 9 is connected to the sub-control switch, so that the semitrailer is in a braking state before the semitrailer unloads materials through the subsea valve, and parking safety in the unloading process is guaranteed. After the sub-control switch is opened, the compressed gas pushes the sea chest valve pneumatic control part 901, namely the normally closed two-position two-way pneumatic control valve, to be in a passage state, and due to the characteristics of the sea chest valve, the sea chest valve can be opened after the pilot gas is introduced.
The subsea valve 9 is connected with the oil discharge valve 2 on the outer wall of the tank body of the oil tank semi-trailer through an oil pipeline, and oil can be discharged through the oil discharge valve. After oil unloading is finished, the oil unloading valve 2 and the seabed valve 9 are closed, then the sub-control switch and the main control switch are sequentially closed, at the moment, the air control valve 5 can be reset to a normally closed state, the brake air chamber 7 starts to store air, and when certain air pressure is reached, the semi-trailer is pushed to park and brake to be released, and at the moment, the vehicle can start. In the process of closing the valve, if any link goes wrong or the corresponding valve is not closed, the semi-trailer cannot release the brake, and the effects of forcibly reminding the inspection and closing the valve are achieved.
As a further embodiment, as shown in FIG. 2, the figure is a schematic view of the connection structure of the ABS brake anti-lock braking system and the subsea valve pneumatic control system of the semitrailer; based on the brake interlocking system, the system can be connected and arranged based on an ABS (antilock brake system) of a semitrailer, the ABS comprises six brake air chambers 7, three air storage cylinders 8, a double release valve 1, a semitrailer ABS brake assembly 6 and a relay valve 12, the semitrailer ABS brake assembly 6 is respectively connected with the brake air chambers 7 and the air storage cylinders 8, the relay valve 12 is connected with one of the air storage cylinders, and the double release valve 1 is a control valve of a hand brake part of a cab and is respectively connected with the brake air chambers 7, the air storage cylinders 8 and the relay valve 12. The integral ABS system is formed by the structure, and the brake interlocking system can establish pneumatic control relation with a sea valve pneumatic control system by using a brake air chamber 7 and an air storage cylinder 8 in the system, so that unloading brake is realized.
The embodiments given above are preferable examples for implementing the present invention, and the present invention is not limited to the above-described embodiments. Any non-essential addition and replacement made by the technical characteristics of the technical scheme of the invention by a person skilled in the art belong to the protection scope of the invention.
Claims (6)
1. The utility model provides a liquid tank semitrailer loads and unloads braking interlocking system, its characterized in that, includes normal close formula gas accuse valve, gas accuse switch, brake chamber, gas receiver, discharge valve, the inlet end of gas accuse valve with the end of giving vent to anger of brake chamber is connected, but the end of giving vent to anger of gas accuse valve exhausts, the pneumatic end of gas accuse valve with the end of giving vent to anger of gas accuse switch is connected, the inlet end of gas accuse switch with the gas receiver is connected, the other end of giving vent to anger of gas accuse switch is connected with the discharge valve, brake chamber is used for when not reaching preset atmospheric pressure in brake chamber the liquid tank semitrailer is in the brake state.
2. The loading and unloading brake interlocking system of the liquid tank semi-trailer according to claim 1, wherein the pneumatic control valve is a two-position two-way pneumatic control valve.
3. The loading and unloading brake interlocking system of the liquid tank semi-trailer according to claim 1, wherein an oil-water separator is arranged between the air inlet end of the pneumatic control switch and the air storage cylinder.
4. The loading and unloading brake interlocking system of the liquid tank semi-trailer according to claim 1, wherein an air outlet end of the air control valve is connected with an exhaust type silencer.
5. The loading and unloading brake interlocking system of the liquid tank semi-trailer according to claim 1, wherein the pneumatic control switch is a pneumatic control combined switch, the pneumatic control combined switch comprises a main control switch and a sub-control switch, an air inlet end of the main control switch is connected with the air cylinder, an air outlet end of the main control switch is connected with a pneumatic end of the pneumatic control valve, and an air outlet end of the sub-control switch is connected with a discharge valve.
6. The loading and unloading brake interlocking system of the liquid tank semi-trailer according to claim 1, wherein the discharge valve comprises an air control part and a valve body, the air control part is connected with the valve body through an air path, the air control part is a normally closed two-position two-way valve, and the pneumatic end of the normally closed two-position two-way valve is connected with the other air outlet end of the air control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534316.4A CN113799748A (en) | 2020-06-11 | 2020-06-11 | Loading and unloading brake interlocking system of liquid tank semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534316.4A CN113799748A (en) | 2020-06-11 | 2020-06-11 | Loading and unloading brake interlocking system of liquid tank semitrailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113799748A true CN113799748A (en) | 2021-12-17 |
Family
ID=78892068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010534316.4A Pending CN113799748A (en) | 2020-06-11 | 2020-06-11 | Loading and unloading brake interlocking system of liquid tank semitrailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113799748A (en) |
-
2020
- 2020-06-11 CN CN202010534316.4A patent/CN113799748A/en active Pending
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