Novel passenger car external emergency valve

Abstract

The utility model belongs to the technical field of emergency valves, and particularly relates to a novel passenger car external emergency valve which is characterized in that a second magnet ring attracted with a first magnet ring through magnetic force is arranged in a shell cover, a finger holding part of a pull handle piece is sleeved with a rubber sleeve, and a ball head frame is arranged on the lower surface, away from the finger holding part, of the pull handle piece; a ball head is rotatably installed in a hole formed in the ball head frame, a steel wire rope is welded and fixed to the surface of the ball head, a pull handle piece is installed in the shell through a first magnet ring, the ball head is rotatably installed in the ball head frame fixed to the lower surface of the pull handle piece, and the steel wire rope welded to the surface of the ball head rotates through a steering mechanism installed in the shell. And the steered steel wire rope penetrates through the shell and is mounted in the wire pipe, so that the steel wire rope is conveniently pulled after the pull handle piece is taken down, the pull handle piece enables the emergency valve to discharge gas in a vehicle door pipeline through the steel wire rope, and the emergency valve can conveniently open the vehicle door from the outside of the vehicle for emergency vehicle door faults.

Description

Technical Field

[0001] The utility model belongs to the technical field of emergency valves, and in particular relates to a novel external emergency valve for passenger cars. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, and diversion and pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shutoff valves to the various valves used in extremely complex automatic control systems. As people's demand for travel grows, more and more people choose to take large buses. Therefore, large bus manufacturers continue to increase their investment in automobile safety equipment, and emergency valves for door emergency control are also part of the research that businesses are increasing their investment in.

[0003] When the existing bus emergency valve is in use, it often controls the gas release in the door pipe by twisting, so as to facilitate the emergency valve to open the door from outside the vehicle. However, when the circuit of the emergency valve is damaged, it is easy to cause the emergency valve to fail due to twisting, resulting in the problem that the emergency valve cannot control the gas release in the door pipe.

[0004] Based on this, a new type of external emergency valve for buses is designed, which controls the release of gas in the door pipe by pulling a steel wire rope from the outside. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and provides a new type of external emergency valve for passenger cars. The specific technical scheme is as follows:

[0006] A novel external emergency valve for passenger cars comprises a shell and a shell cover which is rotatably installed on the side of the shell through a rotating shaft, a first magnet ring is installed in a groove provided in the inner surface of the shell, a handle is installed inside the shell through the magnetic force of the first magnet ring, a second magnet ring which is attracted to the first magnet ring through magnetic force is provided in the shell cover, a rubber sleeve is sleeved on the finger grip portion of the handle, a ball head frame is provided on the lower surface of the handle away from the finger grip portion, a ball head is rotatably installed in a hole provided in the ball head frame, a steel wire rope is welded and fixed on the surface of the ball head, a wire tube is fixed on the outer surface of the shell, the steel wire rope passes through the shell and is installed inside the wire tube, a steering mechanism for steering the steel wire rope is installed in the shell, and a pressure relief member connected to a door pipe is provided at the end of the steel wire rope.

[0007] Preferably, the steering mechanism comprises a wheel frame fixed on the inner surface of the shell, a guide wheel for wire rope steering is rotatably mounted on the end of the wheel frame, and a limiting wheel for limiting the wire rope is also arranged on the inner side of the wheel frame.

[0008] Preferably, the wheel frame is in a C-shaped structure. A wire groove is provided on the outer ring of the wire wheel, and the limiting wheel is located in the wire groove of the wire wheel.

[0009] Preferably, a limiting clamping strip is integrally formed in a groove opened on the lower surface of the edge of the shell cover. A sealing rubber ring is installed in the groove opened on the lower surface of the edge of the shell cover. A groove adapted to the limiting clamping strip is provided on the surface of the sealing rubber ring, and a sealing groove adapted to the sealing rubber ring is provided on the upper surface of the shell.

[0010] Preferably, the rubber sleeve is in an arc structure, and four finger grooves are provided on the surface of the rubber sleeve.

[0011] Preferably, the pressure relief member includes a valve sleeve screwed on the door pipeline. A piston is installed in the valve sleeve. A limiting ring for piston limiting is integrally formed on the inner surface of the open end of the valve sleeve. A conduit is integrally formed on the upper part of the valve sleeve. A pull rod is fixed on the piston, and the pull rod passes through the conduit and is connected to a steel wire rope. A spring for resetting is sleeved on the pull rod, and an exhaust hole is provided on the surface of the valve sleeve.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The pull handle member is installed inside the shell through the first magnet ring. A ball head is rotatably installed in the ball head frame fixed on the lower surface of the pull handle member. The steel wire rope welded on the surface of the ball head rotates through the steering mechanism installed in the shell. The steel wire rope after steering passes through the shell and is installed in the wire conduit, so as to facilitate pulling the steel wire rope after removing the pull handle member, so that the pull handle member drives the pressure relief member through the steel wire rope to realize that the emergency valve discharges the gas in the door pipeline, so as to facilitate opening the door from outside the vehicle for emergency in case of door failure. The steering mechanism is convenient for steering the steel wire rope and reducing the friction between the steel wire rope and the shell when pulling. The second magnet ring arranged in the shell cover attracts the first magnet ring by magnetic force, which is convenient for the shell cover and the shell to be rotationally connected through the rotating shaft and fixed by the magnetic force of the first magnet ring and the second magnet ring, so as to facilitate the installation of the shell cover on the shell. The rubber sleeve sleeved on the finger grip part of the pull handle member enables the user to contact the rubber sleeve when holding the outside of the pull handle member, so that the rubber sleeve realizes the buffering of finger grip.

[0014] 2. Through the steering mechanism composed of a wheel frame, a wire wheel and a limiting wheel, and the wire wheel and the limiting wheel are both rotatably installed on the wheel frame, it is convenient for the wire wheel to guide the steel wire rope and the limiting wheel to limit the steel wire rope, so as to prevent the steel wire rope from separating from the wire wheel; through the wire groove provided on the edge of the wire wheel and the limiting wheel is located in the wire groove of the wire wheel, the wire wheel and the limiting wheel cooperate to guide the steel wire rope and prevent the steel wire rope from breaking away from the wire groove of the wire wheel. Brief Description of the Drawings

[0015] Figure 1Schematic diagram of the three-dimensional structure of the present utility model;

[0016] Figure 2 Schematic diagram of the second three-dimensional structure of the present utility model;

[0017] Figure 3 Schematic diagram of the semi-sectioned three-dimensional structure of the present utility model;

[0018] Figure 4 Schematic diagram of the semi-sectioned front view structure of the present utility model;

[0019] Figure 5 Enlarged schematic diagram of the structure at position A in the figure;

[0020] Figure 6 Schematic diagram of the handle, steering mechanism and rubber sleeve structures in the present utility model;

[0021] Figure 7 Schematic diagram of the rubber sleeve structure in the present utility model;

[0022] Figure 8 Schematic diagram of the pressure relief component structure in the present utility model.

[0023] Reference numerals: 1, housing; 2, housing cover; 3, rotating shaft; 4, first magnet ring; 5, second magnet ring; 6, sealing rubber ring; 7, limit clamping strip; 8, sealing groove; 9, handle; 10, steel wire rope; 11, ball head; 12, wheel frame; 13, wire guide wheel; 14, limit wheel; 15, wire pipe; 16, ball head frame; 17, rubber sleeve; 18, valve sleeve; 19, conduit; 20, piston; 21, limit ring; 22, pull rod; 23, spring; 24, exhaust hole. Detailed implementation manners

[0024] The technical solutions in the embodiments of the present utility model will be described below.

[0025] Please refer to Figure 1-8 , the present utility model provides a technical solution: a new type of external emergency valve for buses, including a housing 1, and a housing cover 2 rotatably installed on the side of the housing 1 through a rotating shaft 3. A first magnet ring 4 is installed in a groove opened on the inner surface of the housing 1, and a handle 9 is installed inside the housing 1 by the magnetic force of the first magnet ring 4. A second magnet ring 5 attracted by the first magnet ring 4 by magnetic force is arranged inside the housing cover 2. A rubber sleeve 17 is sleeved on the finger-holding part of the handle 9. A ball head frame 16 is arranged on the lower surface of the handle 9 away from the finger-holding part. A ball head 11 is rotatably installed in a hole opened in the ball head frame 16. A steel wire rope 10 is fixedly welded on the surface of the ball head 11. A wire pipe 15 is fixed on the outer surface of the housing 1. The steel wire rope 10 passes through the housing 1 and is installed inside the wire pipe 15. A steering mechanism for steering the steel wire rope 10 is installed inside the housing 1. A pressure relief component connected to the door pipeline is arranged at the end of the steel wire rope 10.

[0026] In this embodiment, the pull handle 9 is installed inside the housing 1 through the first magnet ring 4. A ball head 11 is rotatably installed inside the ball head holder 16 fixed to the lower surface of the pull handle 9. The steel wire rope 10 welded to the surface of the ball head 11 is rotated through a steering mechanism installed inside the housing 1. The steel wire rope 10 after steering passes through the housing 1 and is installed inside the wire conduit 15, so that it is convenient to pull the steel wire rope 10 after removing the pull handle 9, and the pull handle 9 releases the gas in the door pipeline through the steel wire rope 10, so that the emergency valve can open the door from outside the vehicle to deal with the door failure. The steering mechanism facilitates the steering of the steel wire rope 10 and reduces the friction between the steel wire rope 10 and the housing 1 when pulling. The second magnet ring 5 arranged inside the housing cover 2 is attracted to the first magnet ring 4 by magnetic force, which is convenient for the housing cover 2 and the housing 1 to be fixedly connected by rotation through the shaft 3 by the magnetic force of the first magnet ring 4 and the second magnet ring 5, so that it is convenient to install the housing cover 2 on the housing 1. The rubber sleeve 17 sleeved on the finger grip part of the pull handle 9 makes the user contact with the rubber sleeve 17 when holding the outside of the pull handle 9, and the rubber sleeve 17 realizes the buffer of finger grip.

[0027] Specifically, the steering mechanism includes a wheel holder 12 fixed to the inner surface of the housing 1. A wire guiding wheel 13 for steering the steel wire rope 10 is rotatably installed at the end of the wheel holder 12. A limiting wheel 14 for limiting the steel wire rope 10 is also arranged inside the wheel holder 12. In this embodiment, through the steering mechanism composed of the wheel holder 12, the wire guiding wheel 13 and the limiting wheel 14, and the wire guiding wheel 13 and the limiting wheel 14 are both rotatably installed on the wheel holder 12, when the wire guiding wheel 13 guides the steel wire rope 10, the limiting wheel 14 limits the steel wire rope 10, so as to prevent the steel wire rope 10 from separating from the wire guiding wheel 13.

[0028] Specifically, the wheel holder 12 is of a C-shaped structure. A wire guiding groove is arranged on the outer ring of the wire guiding wheel 13, and the limiting wheel 14 is located in the wire guiding groove of the wire guiding wheel 13. In this embodiment, through the wire guiding groove arranged on the edge of the wire guiding wheel 13, and the limiting wheel 14 is located in the wire guiding groove of the wire guiding wheel 13, the wire guiding wheel 13 and the limiting wheel 14 cooperate to guide the steel wire rope 10, and prevent the steel wire rope 10 from separating from the wire guiding groove of the wire guiding wheel 13.

[0029] Specifically, a limiting card strip 7 is integrally formed in the groove opened on the lower surface of the edge of the housing cover 2, a sealing rubber ring 6 is installed in the groove opened on the lower surface of the edge of the housing cover 2, a groove adapted to the limiting card strip 7 is opened on the surface of the sealing rubber ring 6, and a sealing groove 8 adapted to the sealing rubber ring 6 is opened on the upper surface of the housing 1. In this embodiment, through the limiting card strip 7 integrally formed in the groove opened on the lower surface of the edge of the housing cover 2, and the sealing rubber ring 6 is installed in the groove opened on the edge of the housing cover 2 through the limiting card strip 7, so that when the housing cover 2 is installed on the housing 1, the limiting card strip 7 is located in the sealing groove 8 on the upper surface of the housing 1, realizing the sealing of the housing 1 and the housing cover 2.

[0030] Specifically, the rubber sleeve 17 is of an arc-shaped structure, and four finger grooves are provided on the surface of the rubber sleeve 17. In this embodiment, it is convenient to hold outside the rubber sleeve 17.

[0031] Specifically, the pressure relief member includes a valve sleeve 18 screwed onto the door pipe. A piston 20 is installed inside the valve sleeve 18. An inner surface of an open end of the valve sleeve 18 is integrally formed with a limiting ring 21 for limiting the piston 20. A conduit 19 is integrally formed on an upper portion of the valve sleeve 18. A pull rod 22 is fixed on the piston 20, and the pull rod 22 passes through the conduit 19 and is connected to the steel wire rope 10. A spring 23 for resetting is sleeved outside the pull rod 22. An exhaust hole 24 is formed on the surface of the valve sleeve 18.

[0032] In this embodiment, through the pressure relief member composed of the valve sleeve 18, the conduit 19, the piston 20, the limiting ring 21, the pull rod 22, the spring 23 and the exhaust hole 24, when the handle member 9 is pulled outward, the handle member 9 drives the steel wire rope 10 to pull the pull rod 22, and the pull rod 22 drives the piston 20 to move to the top of the valve sleeve 18. At this time, the gas in the door pipe enters the valve sleeve 18 and is discharged through the exhaust hole 24, realizing the pressure relief of the door pipe, and then realizing the opening of the door. When the user releases the handle member 9, the pull rod 22 is reset under the action of the spring 23, and the pull rod 22 drives the steel wire rope 10 to reset after resetting.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of external emergency valve for a passenger bus, comprising a housing (1), and a housing cover (2) rotatably mounted on the side of the housing (1) through a rotating shaft (3), characterized in that: On the inner surface of the said housing (1), a first magnet ring (4) is installed in a groove, and a pull handle member (9) is installed inside the housing (1) by the magnetic force of the first magnet ring (4). Inside the housing cover (2), a second magnet ring (5) is provided which is attracted by magnetic force to the first magnet ring (4). A rubber sleeve (17) is sleeved on the finger-holding part of the pull handle member (9). On the lower surface of the pull handle member (9) away from the finger-holding part, a ball head holder (16) is provided. A ball head (11) is rotatably installed in a hole opened in the ball head holder (16). A steel wire rope (10) is welded and fixed on the surface of the ball head (11). A wire pipe (15) is fixed on the outer surface of the housing (1). The steel wire rope (10) passes through the housing (1) and is installed inside the wire pipe (15). A steering mechanism for the steel wire rope (10) is installed inside the housing (1). The end of the steel wire rope (10) is provided with a pressure relief member connected to the door pipeline.

2. The novel external emergency valve for passenger buses according to claim 1, wherein: The said steering mechanism includes a wheel holder (12) fixed on the inner surface of the housing (1). At the end of the wheel holder (12), a wire guiding wheel (13) for steering the steel wire rope (10) is rotatably installed. Inside the wheel holder (12), a limiting wheel (14) for limiting the steel wire rope (10) is also provided.

3. The novel external emergency valve for passenger buses according to claim 2, characterized in that: The said wheel holder (12) is of a U-shaped structure. A wire guiding groove is provided on the outer ring of the wire guiding wheel (13). The limiting wheel (14) is located in the wire guiding groove of the wire guiding wheel (13).

4. A novel external emergency valve for a passenger bus according to claim 1, characterized in that: On the lower surface of the edge of the said housing cover (2), a limiting card strip (7) is integrally formed in a groove. A sealing rubber ring (6) is installed in a groove opened on the lower surface of the edge of the housing cover (2). A groove adapted to the limiting card strip (7) is opened on the surface of the sealing rubber ring (6). A sealing groove (8) adapted to the sealing rubber ring (6) is opened on the upper surface of the housing (1).

5. The novel external emergency valve for a passenger bus according to claim 1, wherein: The said rubber sleeve (17) is of an arc-shaped structure, and four finger grooves are provided on the surface of the rubber sleeve (17).

6. The novel external emergency valve for a bus according to claim 1, characterized in that: The said pressure relief member includes a valve sleeve (18) screwed onto the door pipeline. A piston (20) is installed inside the valve sleeve (18). On the inner surface of the open end of the valve sleeve (18), a limiting ring (21) for limiting the piston (20) is integrally formed. A conduit (19) is integrally formed on the upper part of the valve sleeve (18). A pull rod (22) is fixed on the piston (20), and after passing through the conduit (19), the pull rod (22) is connected to the steel wire rope (10). A spring (23) for resetting is sleeved on the pull rod (22). An exhaust hole (24) is opened on the surface of the valve sleeve (18).

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