CN215322216U - Tank truck with pneumatic control interlocking function of guardrail - Google Patents
Tank truck with pneumatic control interlocking function of guardrail Download PDFInfo
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- CN215322216U CN215322216U CN202120457205.8U CN202120457205U CN215322216U CN 215322216 U CN215322216 U CN 215322216U CN 202120457205 U CN202120457205 U CN 202120457205U CN 215322216 U CN215322216 U CN 215322216U
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Abstract
The utility model relates to a tank truck with a guardrail pneumatic control interlocking function, which comprises a chassis, a tank body arranged above the chassis and a movable guardrail arranged at the top of the tank body, wherein the top of the tank body is also provided with a cylinder, the cylinder is communicated with a speed regulating valve and a hand-pulled valve, and a seven-way gas distribution joint is communicated with the hand-pulled valve through a gas source processing element; the air inlet of the shuttle valve is respectively communicated with the air outlet of the hand-pulling valve and the air outlet of the pneumatic combination switch, the air outlet is communicated with the control port of the pneumatic control valve, the air outlet of the pneumatic control valve is communicated with the air inlet of the hand brake valve, and the air inlet is communicated with the air outlet of the one-way five-way valve; the air outlet of the pneumatic combination switch is communicated with the subsea valve, and the air inlet is connected with the air outlet of the air source processing element; the emergency closing port of the pneumatic combination switch is communicated with an emergency control switch, and an air inlet of the emergency control switch is communicated with the air source processing element.
Description
Technical Field
The utility model belongs to the technical field of tank trucks, and particularly relates to a tank truck with a guardrail pneumatic control interlocking function.
Background
The tank truck is mainly used for road transportation of liquid articles such as oil, chemical liquid, edible liquid and the like. For transporting specific media, operators need to frequently go up and down the tank body for loading operation. In addition, the operator is required to clean, inspect and maintain the tank deck, tank deck attachments and tank interiors at regular intervals. Therefore, most tank trucks are provided with tank top guardrails to ensure the operation safety of operators.
At present, most tank top guardrails configured on domestic tank trucks are of air spring lifting type. The existing tank truck has the problems that the tank top guardrail runs without lowering the vehicle, the guardrail suddenly rises during running of the vehicle and the like in the use process, the error-proofing effect is poor, and great potential safety hazards exist.
Therefore, in order to solve the technical defects in the prior art, improve the error-proof effect, protect the personal safety of operators and improve the safety of vehicles to the maximum extent, the tank truck with the guardrail pneumatic control interlocking function and the control method thereof are necessary.
SUMMERY OF THE UTILITY MODEL
The utility model has the advantages of improving the error-proof effect and improving the safety of vehicle operation and driving.
In order to solve the problems in the background art, the utility model is realized by the following technical scheme:
a tank truck with a guardrail pneumatic control interlocking function comprises a chassis, a tank body arranged above the chassis, a movable guardrail arranged at the top of the tank body, a pneumatic combination switch, a subsea valve, a shuttle valve, a pneumatic control valve, a hand brake valve, a one-way five-way valve, a gas source processing element and a seven-way gas distribution connector;
the top of the tank body is also provided with an air cylinder for driving the movable guardrail to lift, the air cylinder is communicated with a speed regulating valve and a hand-pulling valve, and the seven-way gas distributing joint is communicated with the hand-pulling valve through a gas source processing element;
the air inlet of the shuttle valve is respectively communicated with the air outlet of the hand-pulling valve and the air outlet of the pneumatic combination switch, the air outlet of the shuttle valve is communicated with the control port of the pneumatic control valve, the air outlet of the pneumatic control valve is communicated with the air inlet of the hand brake valve, and the air inlet of the pneumatic control valve is communicated with the air outlet of the one-way five-way valve;
the air outlet of the pneumatic combination switch is communicated with the subsea valve, and the air inlet of the pneumatic combination switch is connected with the air outlet of the air source processing element;
an emergency closing port of the pneumatic combination switch is communicated with an emergency control switch, and an air inlet of the emergency control switch is communicated with the air source processing element.
As a further explanation of the utility model: the right side of the tank body is provided with a box body, and the air source processing element, the air control valve, the shuttle valve and the pneumatic combination switch are all arranged in the box body.
As a further explanation of the utility model: the hand-pulling valve and the emergency control switch are both arranged at the tail end of the chassis.
As a further explanation of the utility model: the hand-pulling valve is a two-position four-way valve.
As a further explanation of the utility model: the pneumatic control valve is a two-position three-way valve.
As a further explanation of the utility model: when the movable guardrail rises to the highest position, the highest point of the movable guardrail is 800mm away from the top of the tank body.
As a further explanation of the utility model: and silencers are arranged on the air exhaust ports of the pneumatic control valve, the hand-pull valve and the emergency control switch.
As a further explanation of the utility model: the cylinder is a double-acting cylinder.
Compared with the prior art, the utility model has the following beneficial technical effects:
1. this technical scheme has utilized shuttle valve pressure to select the characteristic for the hand power valve of control movable guardrail lift and the pneumatic combination switch gas outlet atmospheric pressure of control subsea valve all transmit the control mouth to the gas accuse valve through the shuttle valve, thereby realize when subsea valve does not close or movable guardrail does not descend, the vehicle parking must not be relieved, and loading operation dual fail-safe realizes interlocking, each other does not influence promptly. Moreover, when the subsea valve is closed (namely the loading operation is finished), the vehicle can realize that the movable guardrail cannot fall off and the vehicle cannot run, so that the safety risk caused by forgetting to fall off the movable guardrail by an operator in the running process of the vehicle is effectively avoided
2. This technical scheme utilizes the cooperation of hand power valve and double-acting formula cylinder, guarantees that the vehicle moves in movable guardrail can not rise suddenly, and not only the mistake proofing is effectual, and the structure is reliable, and the strong operability can effectively improve vehicle operation and security of traveling.
Drawings
Fig. 1 is a gas path diagram of the present invention.
1. A speed regulating valve; 2. a cylinder; 3. an emergency control switch; 4. a hand-pulled valve; 5. a subsea valve; 6. a seven-way gas distribution joint;
7. a one-way five-way valve; 8. a hand brake valve; 9. a gas source processing element; 10. a pneumatic control valve; 11. a shuttle valve; 12. pneumatic combination switch.
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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, 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.
As shown in fig. 1, the tank truck with the guardrail pneumatic control interlocking function comprises a chassis, a tank body arranged above the chassis, a movable guardrail arranged at the top of the tank body, a pneumatic combination switch 12, a subsea valve 5, a shuttle valve 11, a pneumatic control valve 10, a hand brake valve 8, a one-way five-way valve 7, an air source processing element 9 and a seven-way air distribution connector 6.
In the embodiment, the speed regulating valve 1 is respectively connected with a rodless cavity and a rod cavity of the cylinder 2 in a serial connection mode so as to realize controllable speed and synchronous lifting of the movable guardrail, and the speed regulating valve 1 can be continuously adjusted; the cylinder 2 is a double-acting cylinder 2, so that the movable guardrail can be well buffered when being lifted, and the problem that the movable guardrail suddenly rises in the operation process of the tank truck can be effectively avoided.
The seven-way gas distribution joint 6 is communicated with the hand-pulling valve 4 through a gas source processing element 9; in this embodiment, the seven-way gas distribution joint 6 is connected to the gas source processing unit through a gas pipeline, a matching reducing straight joint and a matching threaded straight joint, wherein the pressure of the gas source processing unit can be set to 0.8 MPa.
The air outlet of the hand-pulling valve 4 is communicated with the air inlet of the shuttle valve 11, the air inlet of the shuttle valve 11 is communicated with the pneumatic combination switch 12, the air outlet is communicated with the control port of the pneumatic control valve 10, in the embodiment, the air inlet of the shuttle valve 11 is respectively connected with the hand-pulling valve 4 and the air outlet of the pneumatic combination switch 12 through an air pipeline, a matched three-way joint and a matched thread through joint, the air outlet of the shuttle valve 11 is connected with the control port of the pneumatic control valve 10 through an air pipeline and a matched thread through joint, through the matching of shuttle valve 11 is used, forms two control gas circuits, and mutually independent does not influence each other, and is specific, hand power valve 4 is two-position cross valve, and hand power valve 4 and two effect formula cylinder 2's cooperation guarantee that the vehicle moves in the movable guardrail can not rise suddenly, and not only the mistake proofing is effectual, and the structure is reliable, and the strong operability can effectively improve vehicle operation and security of traveling.
The air outlet of the pneumatic control valve 10 is communicated with the air inlet of the hand brake valve 8, and the air inlet is communicated with the air outlet of the one-way five-way valve 7; in the embodiment, the pneumatic control valve 10 and the hand brake valve 8, and the pneumatic control valve 10 and the one-way five-way valve 7 are communicated through air pipelines and matched threaded straight-through connectors. Specifically, the pneumatic control valve 10 is a two-position three-way valve.
The air outlet of the pneumatic combination switch 12 is communicated with the subsea valve 5, and the air inlet is connected with the air outlet of the air source processing element 9; in the embodiment, the air inlet of the pneumatic combination switch 12 is connected with the air outlet of the air source processing element 9 through an air pipeline, a matched three-way joint and a matched threaded through joint; the air outlet of the pneumatic combination switch 12 is connected with the subsea valve 5 through an air pipeline and a matched three-way joint.
An emergency closing port of the pneumatic combination switch 12 is communicated with an emergency control switch 3, an air inlet of the emergency control switch 3 is communicated with the air source processing element 9, the emergency control switch 3 is a two-position three-way valve, the risks that an accident situation occurs when a liquid tank truck is loaded and the sea bottom valve 5 cannot be normally closed can be effectively avoided by using the emergency control switch 3, in the embodiment, the emergency closing port of the pneumatic combination switch 12 is connected with an air outlet of the emergency control switch 3 through an air pipeline and a matched threaded through joint, the air pipeline and a matched three-way joint are communicated with the air source processing element 9 through the matched threaded through joint, the air pipeline and the matched three-way joint,
the threaded straight-through joint, the three-way joint and the reducing straight-through joint are quick-inserting joints, so that the pneumatic combination switch 12, the subsea valve 5, the shuttle valve 11, the pneumatic control valve 10, the hand brake valve 8, the one-way five-way valve 7, the air source processing element 9, the seven-way gas distribution joint 6 and the emergency control switch 3 can be installed and communicated more conveniently.
The right side of the tank body is provided with a box body, the air source processing element 9, the air control valve 10, the shuttle valve 11 and the pneumatic combination switch 12 are all arranged in the box body, and the hand-pull valve 4 and the emergency control switch 3 are all arranged at the tail end of the chassis, so that the subsequent operation is more convenient.
When the movable guardrail rises to the highest position, the highest point of the movable guardrail is 800mm away from the top of the tank body, and silencers are arranged on the air exhaust ports of the pneumatic control valve 10, the hand-pull valve 4 and the emergency control switch 3.
The working principle of the utility model is as follows: when the seabed valve 5 is opened, the pneumatic combination switch 12 is opened firstly, the air pressure at the air outlet of the pneumatic combination switch 12 is transmitted to the control port of the pneumatic control valve 10 through the shuttle valve 11, so that the air outlet of the pneumatic control valve 10 is communicated with the air outlet, the air in the air outlet is released by the air outlet of the pneumatic control valve 10, and the air inlet of the hand brake valve 8 has no air pressure, so that the parking of the vehicle cannot be released when the seabed valve 5 is opened; when the subsea valve 5 is closed, the pneumatic combination switch 12 is firstly closed, the air outlet of the pneumatic combination switch 12 has no air pressure, the control port of the pneumatic control valve 10 has no air pressure, so that the air inlet and the air outlet of the pneumatic control valve 10 are communicated, and the air pressure at the air outlet of the one-way five-way valve 7 is transferred to the air inlet of the hand brake valve 8, so that the hand brake function is normally opened and closed.
Before the tank truck is loaded, the handle of the hand-pulling valve 4 is pulled out, air pressure is transmitted to a rodless cavity of the guardrail lifting cylinder 2 from an air outlet of the hand-pulling valve 4 to lift the movable guardrail, meanwhile, the air pressure is transmitted to a control port of an air control valve 10 through a shuttle valve 11 to enable an air inlet of a hand brake valve 8 to have no air pressure, and therefore when the movable guardrail is lifted, parking of a vehicle cannot be relieved; after the tank truck finishes charging, the handle of the hand-operated valve 4 returns, air pressure is transmitted from the air outlet of the hand-operated valve 4 to the guardrail lifting cylinder 2 to form a rod cavity, so that the movable guardrail descends, meanwhile, the air pressure at the control port of the air control valve 10 is released from the air outlet of the air control valve 10 through the shuttle valve 11, so that the air pressure is established at the air inlet of the hand brake valve 8, and the normal opening and closing of the hand brake function are realized.
This technical scheme has utilized 11 pressure of shuttle valves to select the characteristic for hand power valve 4 and the pneumatic combination switch 12 gas outlet atmospheric pressure of control subsea valve 5 that control movable guardrail goes up and down all transmit to the control mouth of gas accuse valve 10 through shuttle valve 11, thereby realize when subsea valve 5 is not closed or the movable guardrail is not descended, the vehicle parking must not be relieved, and the loading operation is double insurance promptly, realizes interlocking, each other does not influence. Moreover, when the subsea valve 5 is closed (namely, the loading operation is completed), the vehicle can realize that the movable guardrail cannot fall down and the vehicle cannot run, so that the safety risk caused by forgetting to fall down the movable guardrail by an operator in the running process of the vehicle is effectively avoided.
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 utility model by a person skilled in the art belong to the protection scope of the utility model.
Claims (8)
1. The utility model provides a tank truck with guardrail gas accuse interlocking function, includes the chassis, sets up the jar body in the chassis top and installs the movable guardrail at jar body top, its characterized in that: the device also comprises a pneumatic combination switch, a subsea valve, a shuttle valve, a pneumatic control valve, a hand brake valve, a one-way five-way valve, a gas source processing element and a seven-way gas distribution connector;
the top of the tank body is also provided with an air cylinder for driving the movable guardrail to lift, the air cylinder is communicated with a speed regulating valve and a hand-pulling valve, and the seven-way gas distributing joint is communicated with the hand-pulling valve through a gas source processing element;
the air inlet of the shuttle valve is respectively communicated with the air outlet of the hand-pulling valve and the air outlet of the pneumatic combination switch, the air outlet of the shuttle valve is communicated with the control port of the pneumatic control valve, the air outlet of the pneumatic control valve is communicated with the air inlet of the hand brake valve, and the air inlet of the pneumatic control valve is communicated with the air outlet of the one-way five-way valve;
the air outlet of the pneumatic combination switch is communicated with the subsea valve, and the air inlet of the pneumatic combination switch is connected with the air outlet of the air source processing element;
an emergency closing port of the pneumatic combination switch is communicated with an emergency control switch, and an air inlet of the emergency control switch is communicated with the air source processing element.
2. The tank truck with the pneumatic control interlocking function of the guardrail as claimed in claim 1, characterized in that: the right side of the tank body is provided with a box body, and the air source processing element, the air control valve, the shuttle valve and the pneumatic combination switch are all arranged in the box body.
3. The tank truck with the pneumatic control interlocking function of the guardrail as claimed in claim 1, characterized in that: the hand-pulling valve and the emergency control switch are both arranged at the tail end of the chassis.
4. The tank truck with the pneumatic control interlocking function of the guardrail as claimed in claim 1, characterized in that: the hand-pulling valve is a two-position four-way valve.
5. The tank truck with the pneumatic control interlocking function of the guardrail as claimed in claim 1, characterized in that: the pneumatic control valve is a two-position three-way valve.
6. The tank truck with the pneumatic control interlocking function of the guardrail as claimed in claim 1, characterized in that: when the movable guardrail rises to the highest position, the highest point of the movable guardrail is 800mm away from the top of the tank body.
7. The tank truck with the pneumatic control interlocking function of the guardrail as claimed in claim 1, characterized in that: and silencers are arranged on the air exhaust ports of the pneumatic control valve, the hand-pull valve and the emergency control switch.
8. The tank truck with the pneumatic control interlocking function of the guardrail as claimed in claim 1, characterized in that: the cylinder is a double-acting cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120457205.8U CN215322216U (en) | 2021-03-03 | 2021-03-03 | Tank truck with pneumatic control interlocking function of guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120457205.8U CN215322216U (en) | 2021-03-03 | 2021-03-03 | Tank truck with pneumatic control interlocking function of guardrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215322216U true CN215322216U (en) | 2021-12-28 |
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ID=79582449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120457205.8U Active CN215322216U (en) | 2021-03-03 | 2021-03-03 | Tank truck with pneumatic control interlocking function of guardrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215322216U (en) |
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2021
- 2021-03-03 CN CN202120457205.8U patent/CN215322216U/en active Active
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