A new type of emergency valve for passenger cars and its working method

Abstract

The present invention relates to a new type of emergency valve for passenger cars and a working method thereof, comprising an outer cover, a base and an inner valve, wherein the outer cover is hinged to the base, the inner valve is arranged on the back of the base, the inner valve comprises a valve body and a valve core shaft, the valve body is provided with a valve cavity through which the valve core shaft is inserted; an air inlet, an air outlet and a quick air release port connected to the valve cavity are arranged on the valve body; a convex structure is arranged on the valve core shaft, and the movable convex structure of the valve core shaft blocks the air port to realize air path switching; the emergency valve has three states: a normal working state, an emergency state and a state where the driver gets on and off the vehicle; the present invention has a reliable structure, is easy to operate, has a high functional integration, is convenient for improving vehicle reliability and reducing costs.

Description

Technical Field

[0001] The invention relates to an emergency valve, and in particular discloses a new type of emergency valve for a passenger car and a working method thereof. Background Art

[0002] The bus emergency valve is a very important component on the bus. The function of the emergency valve of a conventional bus is to quickly open the door in an emergency to facilitate the evacuation of the passengers. Since the current buses use a lot of compressed air as an auxiliary power to open the door, the emergency valve plays a more important role in quickly cutting off the passenger door air path, so the emergency valve is commonly known as the deflation valve.

[0003] Traditional passenger car emergency valves are mostly rotary valves, which have many disadvantages. Most rotary valves are square in structure, and the air pipe joints need to be extended outside the square, which takes up a lot of space.

[0004] The bus driver needs to install a separate boarding switch when getting on the bus, and turn on the switch when getting on the bus, which increases the manufacturing cost of the bus. Summary of the invention

[0005] The purpose of the present invention is to provide a new emergency valve for buses and a working method thereof which has a reliable structure, is easy to operate, has a high degree of functional integration, is convenient for improving vehicle reliability and reducing costs, in order to solve the above problems.

[0006] The technical solution adopted in the present invention is as follows:

[0007] A new type of emergency valve for passenger cars comprises an outer cover, a base and an inner valve, wherein the outer cover is hinged to the base, the inner valve is arranged on the back of the base, the inner valve comprises a valve body and a valve core shaft, the valve body is provided with a valve cavity through which the valve core shaft is inserted; an air inlet, an air outlet and a quick air release port connected to the valve cavity are arranged on the valve body; a protrusion structure is arranged on the valve core shaft, and the movable protrusion structure of the valve core shaft blocks the air port to realize air path switching.

[0008] Furthermore, a toggle switch is connected to the valve core shaft.

[0009] Furthermore, it also includes an inner cover and a slide, wherein the inner cover is arranged between the outer cover and the base; an identification port is opened on the inner cover; the slide is arranged on the back of the inner cover and is connected to the toggle switch and moves with it, and the movement of the slide can be seen in the identification port to switch the identification on the slide.

[0010] Furthermore, it also includes a valve cover, a conductive positioning plate, a contact plate and a reset spring, the valve cover is arranged at one end of the valve body, the valve core shaft extends to the inner part of the valve cover and a conductive positioning plate is arranged, two contact plates are arranged on the valve body on the left and right sides below the conductive positioning plate; the contact plate is electrically connected to the switch door signal generator; the reset spring is sleeved on the valve core shaft, the upper end of which is connected to the valve cover, and the lower end is connected to the conductive positioning plate.

[0011] A new type of emergency valve working method for passenger cars,

[0012] (1) Normal working state: the toggle switch is centered, the inner cover mark shows normal operation, the inner valve core shaft is in a balanced position, the valve body air path is connected to the air inlet and outlet, and is not connected to the quick release port, and the contact plate on the valve cover is not connected; in this case, the emergency valve is in a normal working state, and the air in the passenger door pump of the bus is connected to the air inlet through the emergency valve outlet, and thus connected to the air source;

[0013] (2) Emergency state: The air circuit needs to be disconnected, the toggle switch is turned to one side, the inner cover mark port displays the current working state, the inner valve core shaft is at one end limit position and remains stationary, the valve body air circuit is connected to the air outlet and the quick release port, and is not connected to the air inlet, and the contact plate at the valve cover is not connected; the emergency valve is in the exhaust state, and the air in the passenger door pump of the bus can be quickly discharged from the quick release port, so that the passenger door can be opened manually;

[0014] (3) Driver getting on or off the vehicle: Toggle the switch to the other side, the inner cover mark shows the current working status, the inner valve core shaft is at the other extreme position, the conductive positioning plate connects the two contact plates, triggering a door opening or closing signal, and the passenger door is finally opened or closed; after the toggle action is completed, the inner valve core shaft returns to the equilibrium position under the action of the reset spring, and the emergency valve returns to normal working status.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] The invention has a simple structure and is easy to operate. The marking port can clearly show the working position of the valve body, which is user-friendly and safe. At the same time, the gas circuit joints are on both sides, occupying a small volume and having a reliable structure. It combines the function of the bus driver getting on the bus and opening the door, has a high degree of functional integration, is convenient for improving vehicle reliability, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present invention;

[0018] Figure 2 It is a cross-sectional view of the structure of the present invention;

[0019] Figure 3 This is a simplified diagram of the internal structure of the valve cover of the present invention;

[0020] Figure 4 This is a structural diagram of the inner cover of the present invention;

[0021] Figure 5 It is a perspective view of the overall structure of the present invention. DETAILED DESCRIPTION

[0022] The invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 5 As shown, a new type of emergency valve for passenger cars comprises an outer cover 1, a base 2 and an inner valve 3, wherein the outer cover 1 is hinged to the base 2, the inner valve 3 is arranged on the back of the base 2, the inner valve 3 comprises a valve body 31 and a valve core shaft 32, the valve body 31 is provided with a valve cavity through which the valve core shaft 32 is inserted; an air inlet, an air outlet and a quick air release port connected to the valve cavity are arranged on the valve body 31 (the air inlet is connected to the air source of the vehicle, and the air outlet is connected to the passenger door pump); a protruding structure is arranged on the valve core shaft 32, and the movable protruding structure of the valve core shaft 32 blocks the air port 4 to realize air path switching; specifically, in the normal state, the protruding structure blocks the quick air release port, and the air inlet and the air outlet are connected; in the emergency state, the protruding structure blocks the air inlet, and the air outlet and the quick air release port are connected.

[0024] A toggle switch 5 is connected to the lower end of the valve core shaft 32. The toggle switch 5 is connected to the valve core shaft 32 through a fork. The fork is installed on the base 2 through a pin and can rotate around the pin. When the toggle switch 5 fork rotates around the pin, the valve core shaft 32 moves up and down.

[0025] It also includes an inner cover 6 and a slide 7, wherein the inner cover 6 is arranged between the outer cover 1 and the base 2; an identification port 8 is opened on the inner cover 6; the slide 7 is arranged on the back of the inner cover 6, and is connected to the toggle switch 5 for follow-up movement. The movement of the slide 7 can be seen at the identification port 8, and the identification switch on the slide 7 can be seen, so that the user can clearly and conveniently understand the working status of the emergency valve.

[0026] It also includes a valve cover 9, a conductive positioning plate 10, a contact plate 11 and a reset spring 12, wherein the valve cover 9 is arranged at the upper end of the valve body 31, and the conductive positioning plate 10 is arranged on the upper end of the valve core shaft 32 extending to the inner part of the valve cover 9, and two contact plates 11 are arranged on the valve body 31 correspondingly on the left and right sides below the conductive positioning plate 10; the contact plate 11 is electrically connected to the switch door signal generator; the reset spring 12 is sleeved on the valve core shaft 32, and its upper end is connected to the positioning plate arranged in the valve cover 9, and the lower end is connected to the conductive positioning plate 10; the valve core shaft 32 moves downward by toggling the toggle switch 5, and the conductive positioning plate 10 conducts the two contact plates 11 to send a switch door signal, the passenger door is opened or closed, and the reset spring 12 enables the valve core shaft 32 to quickly reset to a normal working state.

[0027] A new type of emergency valve working method for passenger cars,

[0028] (1) Normal working state: the toggle switch 5 is centered, the inner cover mark shows normal working, the valve core shaft 32 of the inner valve 3 is in a balanced position, the air path of the valve body 31 is connected to the air inlet and the air outlet, and is not connected to the quick release port, and the contact plate 11 at the valve cover 9 is not connected; in this case, the emergency valve is in a normal working state, and the air in the passenger door pump of the bus is connected to the air inlet through the emergency valve outlet, and thus connected to the air source;

[0029] (2) Emergency state: The air circuit needs to be disconnected, the toggle switch 5 is turned upward, the identification port 8 of the inner cover 6 displays the current working state, the valve core shaft 32 of the inner valve 3 is at the extreme position at one end and remains motionless, the air circuit of the valve body 31 is connected to the air outlet and the quick release port, and is not connected to the air inlet, and the contact plate 11 at the valve cover 9 is not connected; the emergency valve is in the exhaust state, and the air in the passenger door pump of the bus can be quickly discharged from the quick release port, so that the passenger door can be opened manually; and the air circuit from the air source is cut off and will not be lost too much.

[0030] (3) The driver gets on or off the vehicle: Push the toggle switch 5 downward, the inner cover mark 8 displays the current working status, the valve core shaft 32 of the inner valve 3 moves down to the other end limit position, the conductive positioning plate 10 connects the two contact plates 11, triggering a door opening or closing signal, and the passenger door is finally opened or closed; after the toggle action is completed, the valve core shaft 32 of the inner valve 3 returns to the equilibrium position under the action of the reset spring 12, and the emergency valve resumes its normal working state.

[0031] The valve core of the emergency valve of the present invention adopts a sliding valve structure. The sliding valve is a commonly used component in the hydraulic system. It can be operated by the toggle switch 5 outside to control the on-off of the door body gas path. At the same time, this emergency valve also has the function of the driver's boarding switch. The present invention has a simple structure, convenient operation, can clearly mark the working position of the valve body, has space to describe the operation method, is humanized, and has good safety; at the same time, it occupies a small volume, has a reliable structure, and has a high degree of functional integration, which is convenient for improving vehicle reliability and reducing costs.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of emergency valve for passenger cars, comprising an outer cover, a base and an inner valve, wherein the outer cover is hinged to the base, and the inner valve is arranged on the back of the base, and is characterized in that: The inner valve includes a valve body and a valve core shaft, and the valve body is provided with a valve cavity through which the valve core shaft is inserted; an air inlet, an air outlet and a quick release port connected to the valve cavity are provided on the valve body; a protrusion structure is provided on the valve core shaft, and the movable protrusion structure of the valve core shaft blocks the air port to realize air path switching; it also includes a valve cover, a conductive positioning plate, a contact plate and a reset spring, the valve cover is provided at one end of the valve body, and a conductive positioning plate is provided on the valve core shaft extending to the inner part of the valve cover, and two contact plates are provided on the valve body corresponding to the left and right sides below the conductive positioning plate; the contact plate is electrically connected to the switch door signal generator; the reset spring is sleeved on the valve core shaft, and its upper end is connected to a portion provided in the valve cover, and its lower end is connected to the conductive positioning plate.

2. A new type of emergency valve for passenger cars according to claim 1, characterized in that: A toggle switch is connected to the valve core shaft.

3. A new type of emergency valve for passenger cars according to claim 2, characterized in that: It also includes an inner cover and a slide, wherein the inner cover is arranged between the outer cover and the base; a marking port is opened on the inner cover; the slide is arranged on the back of the inner cover and is connected to the toggle switch and moves with it, and the movement of the slide can be seen in the marking port to switch the mark on the slide.

4. A method for operating a new emergency valve for a passenger car according to any one of claims 1 to 3, characterized in that: (1) Normal working state: the toggle switch is centered, the inner cover mark shows normal operation, the inner valve core shaft is in a balanced position, the valve body air path is connected to the air inlet and outlet, and is not connected to the quick release port, and the contact plate on the valve cover is not connected; in this case, the emergency valve is in a normal working state, and the air in the passenger door pump of the bus is connected to the air inlet through the emergency valve outlet, and thus connected to the air source; (2) Emergency state: The air circuit needs to be disconnected, the toggle switch is turned to one side, the inner cover mark port displays the current working state, the inner valve core shaft is at one end limit position and remains stationary, the valve body air circuit is connected to the air outlet and the quick release port, and is not connected to the air inlet, and the contact plate at the valve cover is not connected; the emergency valve is in the exhaust state, and the air in the passenger door pump of the bus can be quickly discharged from the quick release port, so that the passenger door can be opened manually; (3) Driver getting on or off the vehicle: Toggle the switch to the other side, the inner cover mark shows the current working status, the inner valve core shaft moves to the other extreme position, the conductive positioning plate connects the two contact plates, triggering a door opening or closing signal, and the passenger door is finally opened or closed; after the toggle action is completed, the inner valve core shaft returns to the equilibrium position under the action of the reset spring, and the emergency valve resumes its normal working state.

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